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EP0430056A1 - Sump for an internal combustion engine - Google Patents

Sump for an internal combustion engine Download PDF

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Publication number
EP0430056A1
EP0430056A1 EP90122264A EP90122264A EP0430056A1 EP 0430056 A1 EP0430056 A1 EP 0430056A1 EP 90122264 A EP90122264 A EP 90122264A EP 90122264 A EP90122264 A EP 90122264A EP 0430056 A1 EP0430056 A1 EP 0430056A1
Authority
EP
European Patent Office
Prior art keywords
oil pan
oil
cover
filter
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90122264A
Other languages
German (de)
French (fr)
Other versions
EP0430056B1 (en
Inventor
Wolfgang Volz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adam Opel GmbH
Original Assignee
Adam Opel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19893939567 external-priority patent/DE3939567A1/en
Application filed by Adam Opel GmbH filed Critical Adam Opel GmbH
Publication of EP0430056A1 publication Critical patent/EP0430056A1/en
Application granted granted Critical
Publication of EP0430056B1 publication Critical patent/EP0430056B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/1007—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the purification means combined with other functions
    • F01M2001/1014—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the purification means combined with other functions comprising supply of additives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
    • F01M2001/1071—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising oil tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/007—Oil pickup tube to oil pump, e.g. strainer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0079—Oilsumps with the oil pump integrated or fixed to sump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M2011/0483—Filling or draining lubricant of or from machines or engines with a lubricant cartridge for facilitating the change

Definitions

  • the invention relates to an oil pan for an internal combustion engine with a flat base part and a deep pan section as an oil sump and a suction pipe of an oil pump which is immersed in the deep pan section.
  • Such an oil pan for internal combustion engines is known for example from DE 35 31 352 C1. It is also known from DE 38 30 966 C1 an oil pan for an internal combustion engine, in which a surge pot insert is provided adjacent to the bottom of the oil pan, into which an intake pipe of an oil pump is immersed.
  • the swirl pot insert is designed as an essentially one-piece plastic component that is produced separately from the oil pan and lies with a collar that runs parallel to the floor on the outside of the floor, the collar being mediated by screws on an opening for the Swell pot having bottom section is held.
  • the formation of the oil pan in the area of the baffle insert serves the sole purpose of being easy to install, but not to simplify an oil change.
  • the task is solved in that the deep tub section is designed as a removable oil pot.
  • the volume of the oil pan is dimensioned such that it can hold all of the oil flowing in the internal combustion engine.
  • all of the oil collects in the oil pan and can be disposed of after it has been dismantled, possibly together with the oil pan. It is therefore possible to change the oil without draining the oil.
  • the special design of the oil pan with the oil pan enables the oil pan to be designed as an oil pan in the area of the flat bottom part.
  • the accompanying reduction in the volume of the oil pan reduces the sound radiation from the internal combustion engine, increases the rigidity of the lower area of the engine block and facilitates the manufacture of the oil pan.
  • the sound radiation from the engine can be optimized in that an elastic element is arranged between the flat bottom part of the oil pan and the oil pan.
  • the oil pan is expediently round or square, in addition the oil pan should, if possible, be designed symmetrically for both longitudinal and transverse installation of the oil pan. It is considered preferred if the oil pan is made of sheet metal or plastic, but it is also conceivable to design it as a cast part.
  • the oil pan can be assembled and disassembled particularly easily if it is designed to be screwable to the flat bottom part of the oil pan.
  • a connection using screws, a thread or a quick-release fastener can be used.
  • the oil pan in the area of the flat base part advantageously has a smaller size than the internal dimensions of the oil pan Transition diameter into the oil pan. This greatly minimizes the surface area available in the area of the flat bottom part of the oil pan and oil pan for gas absorption in the oil, which has an extremely positive effect on the lubrication quality.
  • the oil pan receives an oil filter.
  • the oil pan thus not only serves as a collection container for the oil, but also the oil is also filtered in the area of the oil sump.
  • This placement of the oil filter in the area of a low flow velocity of the oil and the possibility of a large filter area can achieve decisive advantages over known oil filters arranged above the oil sump, in particular due to an improved depth effect and a greater fineness of the pore size.
  • the oil is drawn in from the clean side of the oil filter via the suction pipe.
  • the suction pipe usefully opens in a conventional manner in its lower region into a bell with a sieve.
  • the oil returns via appropriate channels or on the crankcase walls.
  • the gas absorption in the oil can be kept low or reduced by known elements, such as oil honeycombs, oil guide ribs, oil planes, baffle plates or the like.
  • the filter itself is advantageously ring-shaped and the suction tube with sieve and bell is immersed in the ring.
  • a sieve can also be arranged in the oil sump.
  • a preferred development relating to the oil filter which is closed at the top by means of a ring cover provides that the ring cover is penetrated by the suction pipe in a sealed manner, and the gas which collects between the oil filter and the ring cover is conducted away into the system of the crankcase ventilation of the internal combustion engine .
  • the ducted discharge into the crankcase ventilation system an improved degassing and an increase in the amount of filtrate.
  • the resulting vacuum filtration can be used to achieve a further improvement in the quality of the oil and to help minimize the component of the filter. Vacuum filtration also makes it easier to use alternative filter materials that mean less pollution, for example the use of sintered materials.
  • the oil filter should have a radial opening, which is connected via a line to an opening in the oil pan, which in turn interacts with a line leading to the crankcase ventilation system in the flat bottom part of the oil pan.
  • the line of the oil pan is thus inevitably connected to the line leading to the crankcase ventilation system.
  • the system itself is appropriately coordinated, for example by means of a throttle valve in the line path.
  • a by-pass system should be provided. This can be controlled, for example, by means of the level or also pressure-controlled.
  • the oil filter rests on the bottom of the oil pan or is closed at the bottom and a valve connects the dirt side and the clean side of the oil filter with one another, the valve opening when a defined negative pressure is reached on the clean side.
  • the opening of the valve can be passed on as a signal to the dashboard of the vehicle, which provides the driver with the information to replace the oil pan including the oil filter.
  • the removed oil pan can be closed by means of a lid.
  • the aforementioned design of the oil pan forms an excellent basis for a recycling system based on the replaceable oil pan. So it is fundamentally conceivable that when an oil change is required, one filled with fresh oil and the oil pot closed with the lid is exchanged for another oil pot attached to the vehicle and holding the used oil. For this purpose, the oil pan receiving the old oil must be removed from the flat bottom part of the oil pan, the old oil then remains in this oil pan, which is closed by means of the lid which previously closed the oil pan for the fresh oil. After removing the cover from the oil pan holding the fresh oil, it can then be attached directly to the flat bottom part of the oil pan.
  • the sealed oil pot with the used oil is placed in a recycling system, where the used oil and, if necessary, an oil filter integrated in the oil pot are exchanged and the oil pot is cleaned, checked and provided with fresh oil and a new filter, as well as closed with a lid the circulation system.
  • the cover should also cover the gas line leading from the oil pan when the oil pan is designed with a connection to the crankcase ventilation.
  • a mandatory safety device is present which prevents oil from getting into the environment in an uncontrolled manner.
  • the oil pan which functions as a replacement bowl, is safely processed with the used oil.
  • the reusability of the oil pot and its lid saves raw materials and energy.
  • the lid is expediently plate-shaped or bell-shaped.
  • the lid is advantageously attached to the oil pan by means of the same fastening elements that are used to attach the oil pan to the flat bottom part of the oil pan.
  • fastening elements in particular screws
  • seal a bottom part and a lid part of the oil pan adjacent to an upper oil pan opening cooperating with a lower opening of the flat bottom part and these fastening elements pass through when removed Menem oil pot can be connected to the lid, in particular screwed into this.
  • an elastic sealing element in particular a sealing ring, should be arranged between the cover part of the oil pan and the cover.
  • the oil filter is advantageously ring-shaped and the cover on its side facing the oil pan is provided with a rotationally symmetrical attachment, in particular a truncated cone-shaped attachment that tapers away from the lid, which, when the lid is connected to the oil pan, comes into contact with the ring opening of the oil filter facing the lid .
  • a rotationally symmetrical attachment in particular a truncated cone-shaped attachment that tapers away from the lid, which, when the lid is connected to the oil pan, comes into contact with the ring opening of the oil filter facing the lid.
  • FIGS 1 to 3 show a relatively flat oil pan 1 with a bottom opening 2, in the area of which an oil pan 3 is connected to the oil pan 1.
  • the oil pan 1 and the oil pan 3 together form the oil pan of the internal combustion engine, which is not otherwise shown in detail.
  • the version shown in these figures is intended for the longitudinal installation of the internal combustion engine, the bottom opening 2 of the oil pan 1 is seen at the front in the direction of travel at a slightly lower level than the rear bottom region of the oil pan 1, so that there is a natural flow gradient within the oil pan 1 Bottom opening 2 results.
  • a suction pipe 4 connected to an oil pump (not shown in more detail) is connected by means of two screws 5 to a floor segment 7 arranged within the bottom opening 2 of the oil pan 1 in the bottom plane 6 of the oil pan 1, which in turn is articulated to the actual oil pan 1 via two webs 8 is.
  • the suction pipe 4 is bell-shaped at its lower end and provided with a sieve 9 which is slightly spaced from the oil pan base 10 when the oil pan 3 is installed.
  • the oil pot 3 is designed as a sheet metal part, with a trough-shaped pot base part 3a and a pot lid part 3b having an opening 3c, which are tightly connected to one another in the region of a flanged edge 11.
  • the oil pan 1 In the oil pan 1 is a cylindrical oil filter 18 with Elastic ring cover 18a is used, the inside diameter of the actual filter element being slightly larger than the outside diameter of the sieve 9 and its outside diameter being smaller by such an amount than the diameter of the bottom opening 2, and furthermore the elastic ring cover 18a sealingly rests on the inside of the associated suction pipe section of the suction pipe 4 .
  • the oil flowing out in the region of the opening curve 19 of the oil pan 1 thus reaches the oil pan 3 outside the oil filter 18 and is filtered as it flows in through the oil filter 18 to the intake manifold 4.
  • the oil filter 18 itself can essentially be designed like an air filter that is usually used in motor vehicles.
  • Crosspieces 24 arranged on the outside of the upper edge of the oil filter 18 and supported on the underside of the pot lid part 3b can additionally be provided in order to ensure both a defined position of the oil filter 18 in its axial direction and a permanently secure contact with the pot bottom part 3.
  • the reference number 20 shows the oil level when the internal combustion engine is at a standstill, in this operating state the oil pan 3 is about three-quarters full.
  • the oblique line assigned to number 21 illustrates the oil level on an incline of approximately 30%.
  • the size of the oil pan 3 can be dimensioned differently depending on the vehicle type, in the exemplary embodiment it is assumed that at a level according to the reference number 20 there is an amount of oil of about 5.5 liters in the oil pot, about 4.5 liters when climbing.
  • the oil pump sucks the oil through the oil filter 18 into the intake manifold 4 and delivers it from there to the various lubrication points of the internal combustion engine.
  • the oil pump By sucking off the oil on the glossy side of the filter, not only any particles from the area of the oil pump but also gas, which is caused by the Gas movement in the crankcase was enriched in the returning oil.
  • the oil flows back into the oil pan 1 from the lubrication points, the defined oil guidance to the bottom opening 2 of the oil pan 1 being supported by ribs 22 arranged in the oil pan 1. Additional components (not shown) arranged in the area of the oil pan 1 can be used to separate the gas from the returning oil.
  • a communicating tube 23 which is open in the rear region of the oil pan 1, is connected to the suction pipe 4, and its function prevents the oil from splashing when driving uphill.
  • the oil filter 18 itself can essentially be designed like an air filter that is usually used in motor vehicles.
  • Crosspieces 24 arranged on the outside of the upper edge of the oil filter 18 and supported on the underside of the pot lid part 3b can additionally be provided in order to ensure both a defined position of the oil filter 18 in its axial direction and a permanently secure contact with the pot base part 3.
  • FIG. 4 shows the oil pan 3 removed and closed with a flat, plate-shaped cover 25.
  • the four screws 13 were first loosened, the lower section of the suction pipe 4 was pulled out of the oil filter 18 and then the cover 25 was opened directly of the oil pan 3 placed and fastened with this by means of the four screws 13.
  • the connection of the cover 25 and the oil pan 3 results in a sealed closure of the oil pan, which prevents the used oil from escaping.
  • the manner in which the screws 13 are fastened to the cover 25 is not clarified in the illustration in FIG. 4; for this purpose the cover 25 can be used, for example Tapped holes may be provided or with a through hole, so that in the latter case the screws 13 are screwed into nuts.
  • the circular cover 25 is provided on its side facing the oil pan 3 with a centrally arranged truncated cone extension 25a, which serves to center the cover 25 on the filter 18 or the oil pan 3, in that, when the cover 25 is placed on the oil pan 3, on the circumferential inner contour of the ring cover 18a.
  • FIG. 5 shows, compared to FIG. 2, the modified design of the oil pan with the removable oil pan. Parts which correspond to the embodiment according to FIG. 2 are designated with the same reference numerals for the sake of simplicity.
  • the suction pipe 4 passes through the elastic ring cover 18a which closes the oil filter 18 at the top.
  • the oil filter 18 has a radial opening 26 adjacent to the ring cover 18a, which is connected via a line 27 to an opening 28 in the pot cover part 3b.
  • the opening 28 interacts with a line 29 leading to the crankcase ventilation system (not shown) in the oil pan 1.
  • the oil filter 18 rests on the oil pan base 10 and a valve 30 connects the dirt side and the clean side of the oil filter 18 to one another.
  • the valve 30 comprises, in a manner not shown in detail, a closure element biased by a spring and closing the valve opening in the direction of the dirt side. If the oil filter 18 is contaminated and the oil filter 18 is less permeable, an increased negative pressure is established on the clean side of the oil filter 18. The defined vacuum level leads to the valve 30 opening in the direction of the clean side, so that the oil reaches the clean side in the manner of a bypass.
  • the opening of the valve 30 can be detected in the usual way and the driver, in the area of the dashboard are shown, with the information that the oil pan 3 with the oil contained therein and the oil filter 18 are to be replaced. After the oil pot 3 has been removed and closed by means of the lid 25, this covers not only the central opening 3c but also the opening 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a sump (1, 3) for an internal combustion engine, with a flat base part (1) and a deep tank section (3) as oil sump and an intake pipe (4) of an oil pump immersed in the deep tank section. …<??>It is proposed according to the invention that the deep tank section (3) be designed as a removable oil can. The oil change can thereby be performed rapidly and without harm to the environment without draining off the oil since all the oil is received by the oil can. …<IMAGE>…

Description

Die Erfindung betrifft eine Ölwanne für eine Brennkraftmaschine mit einem flachen Bodenteil sowie einem tiefen Wannenabschnitt als Ölsumpf und einem in den tiefen Wannenabschnitt eintauchen-den Saugrohr einer Ölpumpe.The invention relates to an oil pan for an internal combustion engine with a flat base part and a deep pan section as an oil sump and a suction pipe of an oil pump which is immersed in the deep pan section.

Eine derartige Ölwanne für Brennkraftmaschinen ist beispielsweise aus der DE 35 31 352 C1 bekannt. Es ist darüber hinaus aus der DE 38 30 966 C1 eine Ölwanne für eine Brennkraftmaschine bekannt, bei der benachbart dem Boden der Ölwanne ein Schwalltopf-Einsatz vorgesehen ist, in den ein Saugrohr einer Ölpumpe eintaucht. Der Schwalltopf-Einsatz ist als ein separat von der Ölwanne hergestelltes, im wesentlichen einteiliges Kunststoff-Bauteil ausgebildet und liegt mit einem parallel zum Boden verlaufenden Kragen an der Außenseite des Bodens an, wobei der Kragen unter Vermittlung von Schrauben an einem, eine Öffnung für den Schwalltopf aufweisenden Bodenabschnitt gehalten ist. Die Ausbildung der Ölwanne im Bereich des Schwalltopf-Einsatzes dient ausschließlich dem Zweck, diesen einfach montieren zu können, nicht jedoch einer Vereinfachung eines Ölwechsels.Such an oil pan for internal combustion engines is known for example from DE 35 31 352 C1. It is also known from DE 38 30 966 C1 an oil pan for an internal combustion engine, in which a surge pot insert is provided adjacent to the bottom of the oil pan, into which an intake pipe of an oil pump is immersed. The swirl pot insert is designed as an essentially one-piece plastic component that is produced separately from the oil pan and lies with a collar that runs parallel to the floor on the outside of the floor, the collar being mediated by screws on an opening for the Swell pot having bottom section is held. The formation of the oil pan in the area of the baffle insert serves the sole purpose of being easy to install, but not to simplify an oil change.

Es ist Aufgabe der vorliegenden Erfindung, eine Ölwanne der genannten Art so weiter zu bilden, daß ein Ölwechsel schnell und umweltfreundlich ausgeführt werden kann.It is an object of the present invention to develop an oil pan of the type mentioned so that an oil change can be carried out quickly and in an environmentally friendly manner.

Gelöst wird die Aufgabe dadurch, daß der tiefe Wannenabschnitt als abnehmbarer Öltopf ausgebildet ist.The task is solved in that the deep tub section is designed as a removable oil pot.

Das Volumen des Öltopfes ist so bemessen, daß dieser das gesamte, in der Brennkraftmaschine strömende Öl aufnehmen kann. Im Stillstand der Brennkraftmaschine sammelt sich das gesamte Öl im Öltopf und kann nach dessen Demontage, gegebenenfalls auch zusammen mit dem Öltopf, entsorgt werden. Es besteht somit die Möglichkeit, den Ölwechsel ohne Ablassen des Öles auszuführen.The volume of the oil pan is dimensioned such that it can hold all of the oil flowing in the internal combustion engine. When the internal combustion engine is at a standstill, all of the oil collects in the oil pan and can be disposed of after it has been dismantled, possibly together with the oil pan. It is therefore possible to change the oil without draining the oil.

Die besondere Ausbildung der Ölwanne mit dem Öltopf ermöglicht es, die Ölwanne im Bereich des flachen Bodenteiles als Ölschale auszubilden. Durch die hiermit einhergehende Reduzierung des Volumens der Ölwanne wird die Schallabstrahlung von der Brennkraftmaschine gemindert, die Steifigkeit des unteren Bereiches des Motorblocks erhöht und die Herstellung der Ölwanne erleichtert. Die Schallabstrahlung vom Motor läßt sich dadurch optimieren, daß zwischen dem flachen Bodenteil der Ölwanne und dem Öltopf ein elastisches Element angeordnet ist.The special design of the oil pan with the oil pan enables the oil pan to be designed as an oil pan in the area of the flat bottom part. The accompanying reduction in the volume of the oil pan reduces the sound radiation from the internal combustion engine, increases the rigidity of the lower area of the engine block and facilitates the manufacture of the oil pan. The sound radiation from the engine can be optimized in that an elastic element is arranged between the flat bottom part of the oil pan and the oil pan.

Zweckmäßig ist der Öltopf rund oder eckig ausgebildet, darüber hinaus sollte die Ölschale nach Möglichkeit sowohl für einen Längs- als auch Quereinbau des Öltopfes symmetrisch gestaltet sein. Es wird als bevorzugt angesehen, wenn der Öltopf aus Blech oder Kunststoff besteht, es ist jedoch auch denkbar, ihn als Gußteil auszubilden.The oil pan is expediently round or square, in addition the oil pan should, if possible, be designed symmetrically for both longitudinal and transverse installation of the oil pan. It is considered preferred if the oil pan is made of sheet metal or plastic, but it is also conceivable to design it as a cast part.

Besonders einfach läßt sich der Öltopf montieren bzw. demontieren, wenn er mit dem flachen Bodenteil der Ölwanne verschraubbar ausgebildet ist. So kommt beispielsweise eine Verbindung mittels Schrauben, eines Gewindes oder eines Schnellverschlusses in Frage.The oil pan can be assembled and disassembled particularly easily if it is designed to be screwable to the flat bottom part of the oil pan. For example, a connection using screws, a thread or a quick-release fastener can be used.

Vorteilhaft geht die Ölwanne im Bereich des flachen Bodenteils mit einem gegenüber den Innenabmessungen des Öltopfes kleineren Übergangsdurchmesser in den Öltopf über. Es wird hierdurch der zur Verfügung stehende Oberflächenanteil im Bereich vom flachen Bodenteil der Ölwanne und Öltopf zur Gasaufnahme im Öl stark minimiert, was sich äußert positiv auf die Schmiergüte auswirkt.The oil pan in the area of the flat base part advantageously has a smaller size than the internal dimensions of the oil pan Transition diameter into the oil pan. This greatly minimizes the surface area available in the area of the flat bottom part of the oil pan and oil pan for gas absorption in the oil, which has an extremely positive effect on the lubrication quality.

Gemäß einer besonderen Ausführungsform der Erfindung ist vorgesehen, daß der Öltopf einen Ölfilter aufnimmt. Der Öltopf dient damit nicht nur als Sammelbehälter für das Öl, sondern es wird gleichfalls im Bereich des Ölsumpfes auch das Öl gefiltert. Durch diese Plazierung des Ölfilters im Bereich einer geringen Strömungsgeschwindigkeit des Öles und der Möglichkeit einer großen Filterfläche lassen sich entscheidende Vorteile gegenüber bekannten oberhalb des Ölsumpfes angeordneten Ölfiltern erzielen, insbesondere aufgrund einer verbesserten Tiefenwirkung und einer größeren Feinheit der Porengröße. Über das Saugrohr wird das Öl aus der Reinseite des Ölfilters angesaugt. Das Saugrohr mündet dabei zweckmäßig in herkömmlicher Weise in seinem unteren Bereich in eine Glocke mit Sieb. Der Rücklauf des Öls erfolgt über entsprechende Kanäle bzw. an den Kurbelgehäusewänden. Die Gasaufnahme im Öl kann durch bekannte Elemente, wie Ölwaben, Ölleitrippen, Ölhobel, Schwallbleche oder dergleichen gering gehalten bzw. reduziert werden. Der Filter selbst ist vorteilhaft ringförmig ausgebildet und es taucht das Saugrohr mit Sieb und Glocke in den Ring ein. Statt eines Ölfilters kann aber auch ein Sieb im Ölsumpf angeordnet sein.According to a particular embodiment of the invention, it is provided that the oil pan receives an oil filter. The oil pan thus not only serves as a collection container for the oil, but also the oil is also filtered in the area of the oil sump. This placement of the oil filter in the area of a low flow velocity of the oil and the possibility of a large filter area can achieve decisive advantages over known oil filters arranged above the oil sump, in particular due to an improved depth effect and a greater fineness of the pore size. The oil is drawn in from the clean side of the oil filter via the suction pipe. The suction pipe usefully opens in a conventional manner in its lower region into a bell with a sieve. The oil returns via appropriate channels or on the crankcase walls. The gas absorption in the oil can be kept low or reduced by known elements, such as oil honeycombs, oil guide ribs, oil planes, baffle plates or the like. The filter itself is advantageously ring-shaped and the suction tube with sieve and bell is immersed in the ring. Instead of an oil filter, a sieve can also be arranged in the oil sump.

Eine bevorzugte Weiterbildung betreffend den Ölfilter der oben mittels eines Ringdeckels verschlossen ist, sieht vor, daß der Ringdeckel vom Saugrohr abgedichtet durchsetzt wird, sowie eine geleitete Abführung des sich zwischen dem Ölfilter und dem Ringdeckel sammelnden Gases in das System der Kurbelgehäuse-Entlüftung der Brennkraftmaschine erfolgt. Die geleitete Abführung in das System der Kurbelgehäuse-Entlüftung bewirkt eine verbesserte Entgasung sowie eine Steigerung der Filtratmenge. Die sich hierdurch ergebende Vakuum-Filtration kann dazu benutzt werden, eine weitere Qualitätsverbesserung des Öles zu erreichen und zur Bauteilminimierung des Filters beizutragen. Die Vakuum-Filtration erleichtert auch den Einsatz von alternativen Filtermaterialien, die eine geringere Umweltbelastung bedeuten, zum Beispiel den Einsatz von Sinterwerkstoffen. Konstruktiv sollte der Ölfilter eine radiale Öffnung aufweisen, die über eine Leitung mit einer Öffnung im Öltopf verbunden ist, die ihrerseits mit einer zum System der Kurbelgehäuse-Entlüftung führenden Leitung im flachen Bodenteil der Ölwanne zusammenwirkt. Beim Montieren des Öltopfes am flachen Bodenteil wird somit die Leitung des Öltopfes zwangsläufig mit der zum System der Kurbelgehäuse-Entlüftung führenden Leitung verbunden. Das System selbst ist zweckmäßig abgestimmt, beispielsweise mittels eines Drosselventiles im Leitungsweg. Für den Fall, daß der Ölfilter verstopft ist, sollte ein By-Pass-System vorgesehen sein. Dieses kann beispielsweise mittels des Pegelstandes oder auch druckgesteuert sein. Im letztgenannten Fall wird es als zweckmäßig angesehen, wenn der Ölfilter auf dem Öltopfboden aufliegt oder unten verschlossen ist und ein Ventil die Schmutzseite und die Reinseite des Ölfilters miteinander verbindet, wobei das Ventil bei Erreichen eines definierten Unterdruckes auf der Reinseite öffnet. Das Öffnen des Ventiles kann als Signal an das Armaturenbrett des Fahrzeuges weitergegeben werden, womit dem Fahrer die Information vermittelt wird, den Öltopf einschließlich des Ölfilters auszutauschen.A preferred development relating to the oil filter which is closed at the top by means of a ring cover, provides that the ring cover is penetrated by the suction pipe in a sealed manner, and the gas which collects between the oil filter and the ring cover is conducted away into the system of the crankcase ventilation of the internal combustion engine . The ducted discharge into the crankcase ventilation system an improved degassing and an increase in the amount of filtrate. The resulting vacuum filtration can be used to achieve a further improvement in the quality of the oil and to help minimize the component of the filter. Vacuum filtration also makes it easier to use alternative filter materials that mean less pollution, for example the use of sintered materials. Structurally, the oil filter should have a radial opening, which is connected via a line to an opening in the oil pan, which in turn interacts with a line leading to the crankcase ventilation system in the flat bottom part of the oil pan. When mounting the oil pan on the flat bottom part, the line of the oil pan is thus inevitably connected to the line leading to the crankcase ventilation system. The system itself is appropriately coordinated, for example by means of a throttle valve in the line path. In the event that the oil filter is clogged, a by-pass system should be provided. This can be controlled, for example, by means of the level or also pressure-controlled. In the latter case, it is considered expedient if the oil filter rests on the bottom of the oil pan or is closed at the bottom and a valve connects the dirt side and the clean side of the oil filter with one another, the valve opening when a defined negative pressure is reached on the clean side. The opening of the valve can be passed on as a signal to the dashboard of the vehicle, which provides the driver with the information to replace the oil pan including the oil filter.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist ferner vorgesehen, daß der abgenommene Öltopf mittels eines Deckels verschließbar ist. Die genannte Gestaltung der Ölwanne bildet eine hervorragende Basis für ein auf dem austauschbaren Öltopf fußendes Recycling-System. So ist es grundsätzlich denkbar, daß bei einem erforderlichen Ölwechsel ein mit frischem Öl gefüllter und mit dem Deckel verschlossener Öltopf gegen einen am Fahrzeug angebrachten, das Altöl aufnehmenden anderen Öltopf ausgetauscht wird. Hierzu ist der das Altöl aufnehmende Öltopf vom flachen Bodenteil der Ölwanne zu demontieren, es verbleibt dann das Altöl in diesem Öltopf, der mittels des bis dahin den Öltopf für das frische Öl verschließenden Deckels verschlossen wird. Nach dem Entfernen des Deckels von dem das Frischöl aufnehmenden Öltopf kann dieser dann unmittelbar am flachen Bodenteil der Ölwanne befestigt werden. Der verschlossene Öltopf mit dem Altöl wird in ein Recycling-System gegeben, dort wird das Altöl sowie gegebenenfalls ein in den Öltopf integrierter Ölfilter ausgetauscht und es gelangt der Öltopf gereinigt, geprüft und mit frischem Öl und neuem Filter versehen, sowie mit Deckel verschlossen wieder in das Umlaufsystem. Es versteht sich, daß der Deckel bei einer Ausbildung des Öltopfes mit Anschluß zur Kurbelgehäuse-Entlüftung auch die aus dem Öltopf führende Gasleitung abdecken sollte.According to a preferred embodiment of the invention it is further provided that the removed oil pan can be closed by means of a lid. The aforementioned design of the oil pan forms an excellent basis for a recycling system based on the replaceable oil pan. So it is fundamentally conceivable that when an oil change is required, one filled with fresh oil and the oil pot closed with the lid is exchanged for another oil pot attached to the vehicle and holding the used oil. For this purpose, the oil pan receiving the old oil must be removed from the flat bottom part of the oil pan, the old oil then remains in this oil pan, which is closed by means of the lid which previously closed the oil pan for the fresh oil. After removing the cover from the oil pan holding the fresh oil, it can then be attached directly to the flat bottom part of the oil pan. The sealed oil pot with the used oil is placed in a recycling system, where the used oil and, if necessary, an oil filter integrated in the oil pot are exchanged and the oil pot is cleaned, checked and provided with fresh oil and a new filter, as well as closed with a lid the circulation system. It goes without saying that the cover should also cover the gas line leading from the oil pan when the oil pan is designed with a connection to the crankcase ventilation.

Mittels des Verschlusses für den Öltopf ist damit eine zwingende Sicherung vorhanden, die verhindert, daß Öl unkontrolliert in die Umwelt gelangt. Der die Funktion eines Wechseltopfes ausübende Öltopf gelangt mit dem Altöl sicher zur Aufbereitung. Durch die Wiederverwendbarkeit des Öltopfes und dessen Deckels ist eine Einsparung an Rohstoffen und Energie gegeben.By means of the closure for the oil pan, a mandatory safety device is present which prevents oil from getting into the environment in an uncontrolled manner. The oil pan, which functions as a replacement bowl, is safely processed with the used oil. The reusability of the oil pot and its lid saves raw materials and energy.

Der Deckel ist zweckmäßig plattenförmig oder glockenförmig ausgebildet. Die Befestigung des Deckels am Öltopf erfolgt dabei vorteilhaft mittels derselben Befestigungselemente, die dem Befestigen des Öltopfes an dem flachen Bodenteil der Ölwanne dienen. Hierzu ist beispielsweise vorgesehen, daß Befestigungselemente, insbesondere Schrauben, abgedichtet ein Bodenteil und ein Deckelteil des Öltopfes benachbart einer mit einer unteren Öffnung des flachen Bodenteils zusammenwirkenden oberen Öltopföffnung durchsetzen und diese Befestigungselemente bei abgenom menem Öltopf mit dem Deckel verbindbar sind, insbesondere in diesen einschraubbar sind. Um den Öltopf sicher nach außen abzudichten, sollte zwischen dem Deckelteil des Öltopfes und dem Deckel ein elastisches Dichtungselement, insbesondere ein Dichtungsring angeordnet sein.The lid is expediently plate-shaped or bell-shaped. The lid is advantageously attached to the oil pan by means of the same fastening elements that are used to attach the oil pan to the flat bottom part of the oil pan. For this purpose, it is provided, for example, that fastening elements, in particular screws, seal a bottom part and a lid part of the oil pan adjacent to an upper oil pan opening cooperating with a lower opening of the flat bottom part and these fastening elements pass through when removed Menem oil pot can be connected to the lid, in particular screwed into this. In order to securely seal the oil pan to the outside, an elastic sealing element, in particular a sealing ring, should be arranged between the cover part of the oil pan and the cover.

Vorteilhaft ist der Ölfilter ringförmig ausgebildet und der Deckel auf seiner dem Öltopf zugewandten Seite mit einem rotationssymmetrischen Ansatz, insbesondere einem kegelstumpfförmigen, sich vom Deckel weg verjüngenden Ansatz versehen, der bei mit dem Öltopf verbundenem Deckel in Anlage mit der dem Deckel zugewandten Ringöffnung des Ölfilters gelangt. Mittels des rotationssymmetrischen Ansatzes läßt sich der Deckel bezüglich des Filters und damit der Öltopföffnung zentrieren.The oil filter is advantageously ring-shaped and the cover on its side facing the oil pan is provided with a rotationally symmetrical attachment, in particular a truncated cone-shaped attachment that tapers away from the lid, which, when the lid is connected to the oil pan, comes into contact with the ring opening of the oil filter facing the lid . By means of the rotationally symmetrical approach, the cover can be centered with respect to the filter and thus the oil pot opening.

Weitere Merkmale der Erfindung sind in der Beschreibung der Figuren und in den Unteransprüchen dargestellt, wobei bemerkt wird, daß alle Einzelmerkmale und alle Kombinationen von Einzelmerkmalen erfindungswesentlich sind.Further features of the invention are shown in the description of the figures and in the subclaims, it being noted that all individual features and all combinations of individual features are essential to the invention.

In den Figuren ist die Erfindung beispielsweise dargestellt, ohne hierauf beschränkt zu sein. Es stellt dar:

Figur 1
einen Längsmittelschnitt durch eine erfindungsgemäße Ölwanne (gemäß der Linie B-B in Figur 3) mit dem abnehmbaren Öltopf,
Figur 2
einen Schnitt durch die Ölwanne mit dem abnehmbaren Öltopf gemäß der Linie A-A in Figur 1,
Figur 3
eine Draufsicht auf die Ölwanne,
Figur 4
einen Schnitt gemäß Figur 2 durch den abgenommenen, mit einem Deckel verschlossenen Öltopf und
Figur 5
ein Schnitt gemäß Figur 2 für eine modifizierte Ausführungsform der Ölwanne mit dem abnehmbaren Öltopf.
The invention is shown in the figures, for example, without being limited thereto. It shows:
Figure 1
2 shows a longitudinal central section through an oil pan according to the invention (according to line BB in FIG. 3) with the removable oil pan,
Figure 2
2 shows a section through the oil pan with the removable oil pan according to line AA in FIG. 1,
Figure 3
a top view of the oil pan,
Figure 4
a section according to Figure 2 through the removed, sealed with a lid oil pan and
Figure 5
a section according to Figure 2 for a modified embodiment of the oil pan with the removable oil pan.

Die Figuren 1 bis 3 zeigen eine relativ flach ausgebildete Ölschale 1 mit einer Bodenöffnung 2, im Bereich derer ein Öltopf 3 mit der Ölschale 1 verbunden ist. Die Ölschale 1 und der Öltopf 3 bilden zusammen die Ölwanne der sonst nicht näher gezeigten Brennkraftmaschine. Die in diesen Figuren dargestellte Version ist für den Längseinbau der Brennkraftmaschine vorgesehen, die Bodenöffnung 2 der Ölschale 1 befindet sich in Fahrtrichtung vorne gesehen auf einem geringfügig niedrigeren Niveau als der hintere Bodenbereich der Ölschale 1, so daß sich ein natürliches Fließgefälle innerhalb der Ölschale 1 zur Bodenöffnung 2 hin ergibt. Ein mit einer nicht näher gezeigten Ölpumpe in Verbindung stehendes Saugrohr 4 ist mittels zweier Schrauben 5 mit einem innerhalb der Bodenöffnung 2 der Ölschale 1 in der Bodenebene 6 der Ölschale 1 angeordneten Bodensegment 7 verbunden, das seinerseits über zwei Stege 8 an der eigentlichen Ölschale 1 angelenkt ist. Das Saugrohr 4 ist an seinem unteren Ende glockenförmig ausgebildet und mit einem Sieb 9 versehen, das bei montiertem Öltopf 3 geringfügig beabstandet zum Öltopfboden 10 ist. Der Öltopf 3 ist als Blechteil ausgebildet, mit einem wannenförmigen Topfbodenteil 3a und einem eine Öffnung 3c aufweisenden Topfdeckelteil 3b, die im Bereich eines Bördelrandes 11 dicht miteinander verbunden sind. Auf die Orientierung der Figuren 1 bezogen sind vertikal durch den Öltopf 3 vier Buchsen 12 geführt, von unten durch die Buchsen 12 gesteckte Sechskantschrauben 13 durchsetzen mit ihren Gewinden Gewindebohrungen im Boden 6 des Öltopfes 3. Zwischen den Schraubenköpfen 15 der Schrauben 13 und dem diesen zugeordneten eingebuchteten Bereich des Topfbodenteiles 3a angeordnete elastische Ringe 16 sowie zwischen dem Topfdeckelteil 3b und dem Boden 6 der Ölschale 1 angeordnete elastische Ringe 17, die jeweils von den Schrauben 13 durchsetzt sind, verhindern eine Körperschallübertragung zwischen dem Öltopf 3 und der Ölschale 1.Figures 1 to 3 show a relatively flat oil pan 1 with a bottom opening 2, in the area of which an oil pan 3 is connected to the oil pan 1. The oil pan 1 and the oil pan 3 together form the oil pan of the internal combustion engine, which is not otherwise shown in detail. The version shown in these figures is intended for the longitudinal installation of the internal combustion engine, the bottom opening 2 of the oil pan 1 is seen at the front in the direction of travel at a slightly lower level than the rear bottom region of the oil pan 1, so that there is a natural flow gradient within the oil pan 1 Bottom opening 2 results. A suction pipe 4 connected to an oil pump (not shown in more detail) is connected by means of two screws 5 to a floor segment 7 arranged within the bottom opening 2 of the oil pan 1 in the bottom plane 6 of the oil pan 1, which in turn is articulated to the actual oil pan 1 via two webs 8 is. The suction pipe 4 is bell-shaped at its lower end and provided with a sieve 9 which is slightly spaced from the oil pan base 10 when the oil pan 3 is installed. The oil pot 3 is designed as a sheet metal part, with a trough-shaped pot base part 3a and a pot lid part 3b having an opening 3c, which are tightly connected to one another in the region of a flanged edge 11. With reference to the orientation of FIGS. 1, four sockets 12 are guided vertically through the oil pot 3, hexagon screws 13 inserted from below through the sockets 12 penetrate threaded holes in the base 6 of the oil pot 3 with their threads. Between the screw heads 15 of the screws 13 and the one assigned to them Indented area of the pot bottom part 3a arranged elastic rings 16 and between the pot lid part 3b and the bottom 6 of the oil pan 1 arranged elastic rings 17, each penetrated by the screws 13, prevent structure-borne noise transmission between the oil pan 3 and the oil pan 1.

In den Öltopf 1 ist ein zylinderringförmiger Ölfilter 18 mit elastischem Ringdeckel 18a eingesetzt, wobei der Innendurchmesser des eigentlichen Filterelementes geringfügig größer ist als der Außendurchmesser des Siebes 9 und dessen Außendurchmesser um ein solches Maß geringer ist als der Durchmesser der Bodenöffnung 2 und ferner der elastische Ringdeckel 18a innen dichtend am zugeordneten Saugrohrabschnitt des Saugrohres 4 anliegt. Das im Bereich der Öffnungsrundung 19 der Ölschale 1 abfließende Öl gelangt somit außerhalb des Ölfilters 18 in den Öltopf 3 und wird beim Einströmen durch den Ölfilter 18 zum Saugrohr 4 gefiltert. Der Ölfilter 18 selbst kann im wesentlichen wie ein üblicherweise bei Kraftfahrzeugen Verwendung findender Luftfilter ausgebildet sein. Außen am oberen Rand des Ölfilters 18 angeordnete und sich an der Unterseite des Topfdeckelteiles 3b abstützende Stege 24 können zusätzlich vorgesehen sein, um sowohl eine definierte Lage des Ölfilters 18 in dessen axialer Richtung als auch eine dauerhaft sichere Anlage am Topfbodenteil 3 zu gewährleisten.In the oil pan 1 is a cylindrical oil filter 18 with Elastic ring cover 18a is used, the inside diameter of the actual filter element being slightly larger than the outside diameter of the sieve 9 and its outside diameter being smaller by such an amount than the diameter of the bottom opening 2, and furthermore the elastic ring cover 18a sealingly rests on the inside of the associated suction pipe section of the suction pipe 4 . The oil flowing out in the region of the opening curve 19 of the oil pan 1 thus reaches the oil pan 3 outside the oil filter 18 and is filtered as it flows in through the oil filter 18 to the intake manifold 4. The oil filter 18 itself can essentially be designed like an air filter that is usually used in motor vehicles. Crosspieces 24 arranged on the outside of the upper edge of the oil filter 18 and supported on the underside of the pot lid part 3b can additionally be provided in order to ensure both a defined position of the oil filter 18 in its axial direction and a permanently secure contact with the pot bottom part 3.

In Figur 1 ist mit der Bezugsziffer 20 das Ölniveau im Stillstand der Brennkraftmaschine gezeigt, in diesem Betriebszustand ist der Öltopf 3 zu etwa dreiviertel gefüllt. Die der Ziffer 21 zugeordnete schräge Linie verdeutlicht das Ölniveau bei einer Steigungsfahrt von etwa 30 %. Die Größe des Öltopfes 3 kann je nach Fahrzeugtyp unterschiedlich bemessen werden, im Ausführungsbeispiel wird davon ausgegangen, daß sich bei einem Niveau gemäß der Bezugsziffer 20 eine Ölmenge von etwa 5,5 Litern im Öltopf befindet, bei der Steigungsfahrt etwa 4,5 Liter.In Figure 1, the reference number 20 shows the oil level when the internal combustion engine is at a standstill, in this operating state the oil pan 3 is about three-quarters full. The oblique line assigned to number 21 illustrates the oil level on an incline of approximately 30%. The size of the oil pan 3 can be dimensioned differently depending on the vehicle type, in the exemplary embodiment it is assumed that at a level according to the reference number 20 there is an amount of oil of about 5.5 liters in the oil pot, about 4.5 liters when climbing.

Im Betrieb der Brennkraftmaschine saugt die nicht näher gezeigte Ölpumpe das Öl durch den Ölfilter l8 in das Saugrohr 4 und fördert es von dort zu den diversen Schmierstellen der Brennkraftmaschine. Durch die Absaugung des Öles auf der Filter-Glanzseite werden nicht nur eventuelle Partikel aus dem Bereich der Ölpumpe abgehalten, sondern auch Gas, welches durch die Gasbewegung im Kurbelgehäuse im rücklaufenden Öl angereichert wurde. Von den Schmierstellen strömt das Öl in die Ölschale 1 zurück, wobei die definierte Ölführung zur Bodenöffnung 2 der Ölschale 1 durch in der Ölschale 1 angeordnete Rippen 22 unterstützt wird. Zusätzliche im Bereich der Ölschale 1 angeordnete, nicht gezeigte Bauelemente können der Trennung des Gases aus dem rücklaufenden Öl dienen, bei diesen Elementen handelt es sich bevorzugt um Ölhobel, Ölwaben oder auch Kugeln, zur Verminderung der Gasaufnahme können überdies Schwallbleche vorgesehen sein. Schließlich steht mit dem Saugrohr 4 eine im hinteren Bereich der Ölschale 1 offene kommunizierende Röhre 23 in Verbindung, die durch ihre Funktion ein Panschen des Öles bei Bergfahrt verhindert.During operation of the internal combustion engine, the oil pump, not shown, sucks the oil through the oil filter 18 into the intake manifold 4 and delivers it from there to the various lubrication points of the internal combustion engine. By sucking off the oil on the glossy side of the filter, not only any particles from the area of the oil pump but also gas, which is caused by the Gas movement in the crankcase was enriched in the returning oil. The oil flows back into the oil pan 1 from the lubrication points, the defined oil guidance to the bottom opening 2 of the oil pan 1 being supported by ribs 22 arranged in the oil pan 1. Additional components (not shown) arranged in the area of the oil pan 1 can be used to separate the gas from the returning oil. These elements are preferably oil planes, oil combs or balls, and baffles can also be provided to reduce the gas absorption. Finally, a communicating tube 23, which is open in the rear region of the oil pan 1, is connected to the suction pipe 4, and its function prevents the oil from splashing when driving uphill.

Der Ölfilter 18 selbst kann im wesentlichen wie ein üblicherweise bei Kraftfahrzeugen Verwendung findender Luftfilter ausgebildet sein. Außen am oberen Rand des Ölfilters 18 angeordnete und sich an der Unterseite des Topfdeckelteiles 3b abstützende Stege 24 können zusätzlich vorgesehen sein, um sowohl eine definierte Lage des Ölfilters 18 in dessen axialer Richtung als auch eine dauerhaft sichere Anlage am Topfbodenteil 3 zu gewährleisten.The oil filter 18 itself can essentially be designed like an air filter that is usually used in motor vehicles. Crosspieces 24 arranged on the outside of the upper edge of the oil filter 18 and supported on the underside of the pot lid part 3b can additionally be provided in order to ensure both a defined position of the oil filter 18 in its axial direction and a permanently secure contact with the pot base part 3.

Figur 4 zeigt den abgenommenen und mit einem ebenen, plattenförmigen Deckel 25 verschlossenen Öltopf 3. Zum Abnehmen des Öltopfes 3 wurden zunächst die vier Schrauben 13 gelöst, der untere Abschnitt des Saugrohres 4 aus dem Ölfilter 18 herausgezogen und dann unmittelbar der Deckel 25 auf die Öffnung des Öltopfes 3 gelegt und mit diesem mittels der vier Schrauben 13 befestigt. Aufgrund des ohnehin vorhandenen elastischen Ringes 17 ergibt sich dabei bei der Verbindung von Deckel 25 und Öltopf 3 ein abgedichteter Verschluß des Öltopfes, der ein Austreten des Altöles verhindert. Nicht näher verdeutlicht ist in der Darstellung der Figur 4 die Art der Befestigung der Schrauben 13 mit dem Deckel 25; hierzu kann der Deckel 25 beispielsweise mit Gewindebohrungen versehen sein oder mit einem Durchgangsloch, so daß in letzterem Fall die Schrauben 13 in Muttern eingeschraubt werden.FIG. 4 shows the oil pan 3 removed and closed with a flat, plate-shaped cover 25. To remove the oil pan 3, the four screws 13 were first loosened, the lower section of the suction pipe 4 was pulled out of the oil filter 18 and then the cover 25 was opened directly of the oil pan 3 placed and fastened with this by means of the four screws 13. Because of the elastic ring 17 which is present in any case, the connection of the cover 25 and the oil pan 3 results in a sealed closure of the oil pan, which prevents the used oil from escaping. The manner in which the screws 13 are fastened to the cover 25 is not clarified in the illustration in FIG. 4; for this purpose the cover 25 can be used, for example Tapped holes may be provided or with a through hole, so that in the latter case the screws 13 are screwed into nuts.

Der kreisförmige Deckel 25 ist auf seiner dem Öltopf 3 zugewandten Seite mit einem zentrisch angeordneten Kegelstumpfansatz 25a versehen, der der Zentrierung des Deckels 25 zum Filter 18 bzw. dem Öltopf 3 dient, indem er bei auf den Öltopf 3 aufgelegtem Deckel 25 an der umlaufenden Innenkontur des Ringdeckels 18a anliegt.The circular cover 25 is provided on its side facing the oil pan 3 with a centrally arranged truncated cone extension 25a, which serves to center the cover 25 on the filter 18 or the oil pan 3, in that, when the cover 25 is placed on the oil pan 3, on the circumferential inner contour of the ring cover 18a.

Die Figur 5 zeigt gegenüber Figur 2 die modifizierte Ausbildung der Ölwanne mit dem abnehmbaren Öltopf. Mit der Ausführungsform nach Figur 2 übereinstimmende Teile sind der Einfachheit halber mit gleichen Bezugsziffern bezeichnet. Wie der Figur 5 zu entnehmen ist, durchsetzt das Saugrohr 4 abgedichtet den den Ölfilter 18 oben verschließenden elastischen Ringdeckel 18a. Der Ölfilter 18 weist benachbart zum Ringdeckel 18a eine radiale Öffnung 26 auf, die über eine Leitung 27 mit einer Öffnung 28 im Topfdeckelteil 3b verbunden ist. Die Öffnung 28 wirkt mit einer zum nicht gezeigten System der Kurbelgehäuse-Entlüftung führenden Leitung 29 in der Ölschale 1 zuammen. Der Ölfilter 18 liegt auf dem Öltopfboden 10 auf und es verbindet ein Ventil 30 die Schmutzseite und die Reinseite des Ölfilters 18 miteinander. Das Ventil 30 umfaßt in nicht näher dargestellter Art und Weise ein mittels einer Feder vorgespanntes, die Ventilöffnung in Richtung der Schmutzseite verschließendes Verschlußelement. Bei einem Verschmutzen des Ölfilters 18 und damit reduzierter Durchgängigkeit des Ölfilters 18 stellt sich auf der Reinseite des Ölfilters 18 ein erhöhter Unterdruck ein. Das definierte Unterdruckniveau führt dazu, daß das Ventil 30 in Richtung der Reinseite öffnet, so daß das Öl in Art eines Bypasses von der Schmutzseite zur Reinseite gelangt. Das Öffnen des Ventiles 30 kann in üblicher Art und Weise erfaßt und dem Fahrer, im Bereich des Armaturenbrettes gezeigt werden, mit der Information, daß der Öltopf 3 mit dem darin enthaltenen Öl und der Ölfilter 18 auszuwechseln sind. Nach dem Entfernen des Öltopfes 3 und dessen Verschließen mittels des Deckels 25 deckt dieser nicht nur die zentrale Öffnung 3c sondern auch die Öffnung 28 ab.FIG. 5 shows, compared to FIG. 2, the modified design of the oil pan with the removable oil pan. Parts which correspond to the embodiment according to FIG. 2 are designated with the same reference numerals for the sake of simplicity. As can be seen from FIG. 5, the suction pipe 4 passes through the elastic ring cover 18a which closes the oil filter 18 at the top. The oil filter 18 has a radial opening 26 adjacent to the ring cover 18a, which is connected via a line 27 to an opening 28 in the pot cover part 3b. The opening 28 interacts with a line 29 leading to the crankcase ventilation system (not shown) in the oil pan 1. The oil filter 18 rests on the oil pan base 10 and a valve 30 connects the dirt side and the clean side of the oil filter 18 to one another. The valve 30 comprises, in a manner not shown in detail, a closure element biased by a spring and closing the valve opening in the direction of the dirt side. If the oil filter 18 is contaminated and the oil filter 18 is less permeable, an increased negative pressure is established on the clean side of the oil filter 18. The defined vacuum level leads to the valve 30 opening in the direction of the clean side, so that the oil reaches the clean side in the manner of a bypass. The opening of the valve 30 can be detected in the usual way and the driver, in the area of the dashboard are shown, with the information that the oil pan 3 with the oil contained therein and the oil filter 18 are to be replaced. After the oil pot 3 has been removed and closed by means of the lid 25, this covers not only the central opening 3c but also the opening 28.

BezugszeichenlisteReference symbol list

  • 1 Ölschale1 oil pan
  • 2 Bodenöffnung2 bottom opening
  • 3 Öltopf3 oil pots
  • 3a Topfbodenteil3a pot bottom part
  • 3b Topfdeckelteil3b pot lid part
  • 3c Öffnung3c opening
  • 4 Saugrohr4 suction pipe
  • 5 Schraube5 screw
  • 6 Boden6 bottom
  • 7 Bodensegment7 floor segment
  • 8 Steg8 bridge
  • 9 Sieb9 sieve
  • 10 Öltopfboden10 oil pan base
  • 11 Bördelrand11 flanged edge
  • 12 Buchse12 socket
  • 13 Schraube13 screw
  • 14 Gewindebohrung14 threaded hole
  • 15 Schraubenkopf15 screw head
  • 16 elastischer Ring16 elastic ring
  • 17 elastischer Ring17 elastic ring
  • 18 Ölfilter18 oil filter
  • 18a Ringdeckel18a ring cover
  • 19 Rand19 edge
  • 20 Ölpegel20 oil levels
  • 21 Ölpegel21 oil level
  • 24 Steg24 bridge
  • 25 Deckel25 lids
  • 25a Kegelstumpfansatz25a truncated cone attachment
  • 26 Öffnung26 opening
  • 27 Leitung27 line
  • 28 Öffnung28 opening
  • 29 Leitung29 line
  • 30 Ventil30 valve

Claims (21)

Ölwanne für eine Brennkraftmaschine mit einem flachen Bodenteil sowie einem tiefen Wannenabschnitt als Ölsumpf und einem in den tiefen Wannenabschnitt einmündenden Saugrohr einer Ölpumpe, dadurch gekennzeichnet, daß der tiefe Wannenabschnitt als abnehmbarer Öltopf (3) ausgebildet ist.Oil pan for an internal combustion engine with a flat base part and a deep pan section as an oil sump and an intake pipe of an oil pump opening into the deep pan section, characterized in that the deep pan section is designed as a removable oil pan (3). Ölwanne nach Anspruch 1, dadurch gekennzeichnet, daß die Ölwanne (1, 3) im Bereich des flachen Bodenteils als Ölschale (1) ausgebildet ist.Oil pan according to Claim 1, characterized in that the oil pan (1, 3) is designed as an oil pan (1) in the region of the flat base part. Ölwanne nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Öltopf (3) rund oder eckig ausgebildet ist.Oil pan according to claim 1 or 2, characterized in that the oil pan (3) is round or angular. Ölwanne nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Öltopf (3) symmetrisch zum Zylinderblock der Brennkraftmaschine angeordnet ist.Oil pan according to one of claims 1 to 3, characterized in that the oil pan (3) is arranged symmetrically to the cylinder block of the internal combustion engine. Ölwanne nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Öltopf (3) als Blech-, Guß- oder Kunststoffteil ausgebildet ist.Oil pan according to one of claims 1 to 4, characterized in that the oil pan (3) is designed as a sheet metal, cast or plastic part. Ölwanne nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Öltopf (3) mit dem flachen Bodenteil (1) der Ölwanne (1, 3) verschraubbar ist.Oil pan according to one of claims 1 to 5, characterized in that the oil pan (3) can be screwed to the flat bottom part (1) of the oil pan (1, 3). Ölwanne nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zwischen dem flachen Bodenteil (1) und dem Öltopf (3) ein elastisches Element (17) angeordnet ist.Oil pan according to one of claims 1 to 6, characterized in that an elastic element (17) is arranged between the flat base part (1) and the oil pan (3). Ölwanne nach einem der Ansprüche 1 bis 7, dadurch gekenn zeichnet, daß sie im Bereich des flachen Bodenteils (1) mit einem gegenüber den Innenabmessungen des Öltopfes (3) kleineren Übergangsdurchmesser in den Öltopf (3) übergeht. Oil pan according to one of claims 1 to 7, characterized shows that it merges into the oil pan (3) in the area of the flat base part (1) with a smaller transition diameter than the internal dimensions of the oil pan (3). Ölwanne nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Öltopf (3) einen Ölfilter (18) aufnimmt.Oil pan according to one of claims 1 to 8, characterized in that the oil pan (3) receives an oil filter (18). Ölwanne nach Anspruch 9, dadurch gekennzeichnet, daß der Ölfilter (18) ringförmig ausgebildet ist und das Saugrohr (4) in den Ring eintaucht.Oil pan according to claim 9, characterized in that the oil filter (18) is annular and the suction pipe (4) is immersed in the ring. Ölwanne nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß der Ölfilter (18) oben mittels eines Ringdeckels (18a) verschlossen ist, den das Saugrohr (4) abgedichtet durchsetzt, sowie eine geleitete Abführung (27, 29) des sich zwischen dem Ölfilter (18) und dem Ringdeckel (18a) sammelnden Gases in das System der Kurbelgehäuse-Entlüftung der Brennkraftmaschine vorgesehen ist.Oil pan according to claim 9 or 10, characterized in that the oil filter (18) is closed at the top by means of an annular cover (18a) through which the suction pipe (4) passes in a sealed manner, and a guided discharge (27, 29) of the between the oil filter ( 18) and the ring cover (18a) collecting gas is provided in the crankcase ventilation system of the internal combustion engine. Ölwanne nach Anspruch 11, dadurch gekennzeichnet, daß der Ölfilter (18) eine radiale Öffnung (26) aufweist, die über eine Leitung (27) mit einer Öffnung (28) im Öltopf (3) verbunden ist, die ihrerseits mit einer zum System der Kurbelgehäuse-Entlüftung führenden Leitung (29) im flachen Bodenteil (1) der Ölwanne (1, 3) zusammenwirkt.Oil pan according to claim 11, characterized in that the oil filter (18) has a radial opening (26) which is connected via a line (27) to an opening (28) in the oil pan (3), which in turn is connected to the system of the Leading crankcase ventilation line (29) in the flat bottom part (1) of the oil pan (1, 3) cooperates. Ölwanne nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß der Ölfilter (18) auf dem Öltopfboden (10) aufliegt oder unten verschlossen ausgebildet ist und ein Ventil (30) die Scmutzseite und die Reinseite des Ölfilters (18) miteinander verbindet, wobei das Ventil (30) bei Erreichen eines definierten Unterdruckes in Richtung der Reinseite öffnet.Oil pan according to claim 11 or 12, characterized in that the oil filter (18) rests on the oil pan base (10) or is closed at the bottom and a valve (30) connects the dirt side and the clean side of the oil filter (18) to one another, the valve (30) opens in the direction of the clean side when a defined negative pressure is reached. Ölwanne nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Öltopf (3) ein Sieb (9) aufnimmt.Oil pan according to one of claims 1 to 13, characterized in that the oil pan (3) receives a sieve (9). Ölwanne nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß der abgenommene Öltopf (3) mittels eines Deckels (25) verschließbar ist.Oil pan according to one of claims 1 to 14, characterized in that the removed oil pan (3) can be closed by means of a cover (25). Ölwanne nach Anspruch 15, dadurch gekennzeichnet, daß die dem Saugrohr (4) zugeordnete Öffnung (3c) im Öltopf (3) sowie die Öffnung (28) des Öltopfes (3), die mit dem System der Kurbelgehäuse-Entlüftung zusammen wirkt, mittels des Deckels (25) verschließbar ist.Oil pan according to claim 15, characterized in that the opening (3c) assigned to the suction pipe (4) in the oil pan (3) and the opening (28) of the oil pan (3), which cooperates with the crankcase ventilation system, by means of the Lid (25) can be closed. Ölwanne nach Anspruch 15 oder 16, dadurch gekennzeichnet, daß der Deckel (25) plattenförmig oder glockenförmig ausgebildet ist.Oil pan according to claim 15 or 16, characterized in that the cover (25) is plate-shaped or bell-shaped. Ölwanne nach Anspruch 15 bis 17, dadurch gekennzeichnet, daß Befestigungselemente (13) zum Befestigen des Öltopfes (3) am flachen Bodenteil (1) vorgesehen sind, die abgedichtet ein Bodenteil (3a) und ein Deckelteil (3b) des Öltopfes (3) benachbart einer mit einer unteren Öffnung (2) des flachen Bodenteils (1) zusammenwirkenden oberen Öltopföffnung durchsetzen und mit dem Deckel (25) verbindbar sind.Oil pan according to Claims 15 to 17 , characterized in that fastening elements (13) for fastening the oil pot (3) to the flat bottom part (1) are provided, which are sealed adjacent to a bottom part (3a) and a cover part (3b) of the oil pot (3) pass through an upper oil pot opening which interacts with a lower opening (2) of the flat base part (1) and can be connected to the cover (25). Ölwanne nach Anspruch 18, dadurch gekennzeichnet, daß die Befestigungselemente als Schrauben (13) ausgebildet sind, die Hülsen (12), insbesondere abgedichtete Hülsen, im Öltopf (3) durchsetzen und in den Deckel (25) einschraubbar sind.Oil pan according to claim 18, characterized in that the fastening elements are designed as screws (13) which pass through sleeves (12), in particular sealed sleeves, in the oil pan (3) and can be screwed into the cover (25). Ölwanne nach Anspruch 18 oder 19, dadurch gekennzeichnet, daß zwischen dem Deckelteil (3b) des Öltopfes (3) und dem Deckel (25) ein elastisches Dichtungselement, insbesondere ein Dichtungsring (17) angeordnet ist.Oil pan according to claim 18 or 19, characterized in that an elastic sealing element, in particular, between the cover part (3b) of the oil pan (3) and the cover (25) a sealing ring (17) is arranged. Ölwanne nach Anspruch 20, dadurch gekennzeichnet, daß der Ölfilter (18) ringförmig ausgebildet ist und der Deckel (25) auf seiner dem Öltopf (3) zugewandten Seite mit einem rotationssymmetrischen Ansatz (25), insbesondere einem kegelstumpfförmigen, sich vom Deckel (25) weg verjüngenden Ansatz (25a) versehen ist, der bei mit dem Öltopf (3) verbundenem Deckel (25) in Anlage mit der dem Deckel (25) zugewandten Ringöffnung des Ölfilters (18, 18a) gelangt.Oil pan according to claim 20, characterized in that the oil filter (18) is ring-shaped and the cover (25) on its side facing the oil pan (3) with a rotationally symmetrical shoulder (25), in particular a frustoconical shape, extending from the cover (25) away tapering extension (25a) is provided which, when the cover (25) is connected to the oil pan (3), comes into contact with the ring opening of the oil filter (18, 18a) facing the cover (25).
EP90122264A 1989-11-30 1990-11-22 Sump for an internal combustion engine Expired - Lifetime EP0430056B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19893939567 DE3939567A1 (en) 1989-11-30 1989-11-30 IC engine oil sump with flat bottom
DE3939567 1989-11-30
DE4010946A DE4010946A1 (en) 1989-11-30 1990-04-05 OIL PAN FOR AN INTERNAL COMBUSTION ENGINE
DE4010946 1990-04-05

Publications (2)

Publication Number Publication Date
EP0430056A1 true EP0430056A1 (en) 1991-06-05
EP0430056B1 EP0430056B1 (en) 1992-10-14

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ID=25887515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122264A Expired - Lifetime EP0430056B1 (en) 1989-11-30 1990-11-22 Sump for an internal combustion engine

Country Status (5)

Country Link
US (1) US5130014A (en)
EP (1) EP0430056B1 (en)
CA (1) CA2031065C (en)
DE (2) DE4010946A1 (en)
ES (1) ES2035695T3 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009077133A1 (en) * 2007-12-14 2009-06-25 Elringklinger Ag Oil sump
WO2013025353A1 (en) * 2011-08-17 2013-02-21 4 Thought Energy Llc Cogeneration system with oil and filter change feature

Also Published As

Publication number Publication date
DE4010946A1 (en) 1991-10-10
DE59000358D1 (en) 1992-11-19
ES2035695T3 (en) 1993-04-16
CA2031065C (en) 1995-11-21
US5130014A (en) 1992-07-14
EP0430056B1 (en) 1992-10-14
CA2031065A1 (en) 1991-05-31

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