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EP0806552A1 - Culasse pour moteur à combustion interne - Google Patents

Culasse pour moteur à combustion interne Download PDF

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Publication number
EP0806552A1
EP0806552A1 EP97106332A EP97106332A EP0806552A1 EP 0806552 A1 EP0806552 A1 EP 0806552A1 EP 97106332 A EP97106332 A EP 97106332A EP 97106332 A EP97106332 A EP 97106332A EP 0806552 A1 EP0806552 A1 EP 0806552A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
oil
head arrangement
arrangement according
oil supply
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
EP97106332A
Other languages
German (de)
English (en)
Other versions
EP0806552B1 (fr
Inventor
Frank Ickinger
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0806552A1 publication Critical patent/EP0806552A1/fr
Application granted granted Critical
Publication of EP0806552B1 publication Critical patent/EP0806552B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/24Cylinder heads
    • F02F1/42Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • F01L1/053Camshafts overhead type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • F01L2001/0476Camshaft bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • F01L1/053Camshafts overhead type
    • F01L2001/0537Double overhead camshafts [DOHC]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02Arrangements of lubricant conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10Lubrication of valve gear or auxiliaries
    • F01M9/104Lubrication of valve gear or auxiliaries of tappets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10Lubrication of valve gear or auxiliaries
    • F01M9/108Lubrication of valve gear or auxiliaries of auxiliaries
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00Engines characterised by fuel-air mixture compression
    • F02B1/02Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18DOHC [Double overhead camshaft]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/24Cylinder heads
    • F02F2001/244Arrangement of valve stems in cylinder heads
    • F02F2001/245Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/006Camshaft or pushrod housings

Definitions

  • the invention relates to a cylinder head arrangement of an internal combustion engine according to the preamble of claim 1.
  • Such a cylinder head arrangement is described in DE 43 24 791 A1, which consists of a basic housing placed on the cylinder block, a carrier component inserted into the basic housing and a final cylinder head cover.
  • the carrier component serves to receive valve lift transmission elements which are designed in the form of tappet elements.
  • This carrier component is inserted into the basic housing.
  • the cylinder head arrangement is closed at the top by a cylinder head cover, which is placed in a common parting plane on flange surfaces of the outer walls of the basic housing and on a flange surface of the carrier component. In this common parting plane, oil supply channels are formed in the form of depressions within the flange surface, which are combined to form an oil gallery and serve to supply oil to the valve lift transmission elements.
  • a similar cylinder head arrangement is described in DE 43 07 368 A1.
  • five gas exchange valves are guided in the basic housing per cylinder, three of which are designed as intake valves and two as exhaust valves.
  • the valve lift transmission elements are guided or supported on the carrier component, the two outlet valves per cylinder being actuated via bucket tappet elements.
  • Two of the three inlet valves are also acted upon by tappet elements, which can influence the valve lift of the associated gas exchange valve by suitable control.
  • the third inlet valve is actuated via an actuating lever guided on the carrier component.
  • lubricant oil
  • the switchable valve lift transmission elements are acted upon hydraulically and - as is usually the case - also via the oil supply to the Internal combustion engine supplied, there are many problems with the total oil supply to the cylinder head.
  • the invention is therefore based on the object of improving the oil supply within a generic cylinder head arrangement in such a way that it can be produced simply and inexpensively and permits an at least partially independent supply of different consumers.
  • the drilling effort within the cylinder head arrangement should be minimized and in particular very long, costly and labor-intensive oil drilling should be avoided.
  • Oil supply channels are formed within two parting planes of the cylinder head arrangement, which are combined to form an oil gallery. These oil supply channels are formed by grooves in the flange surfaces and form two oil galleries. Starting from these oil galleries, it is possible to supply a large number of consumers with oil within the cylinder head arrangement. This largely dispenses with expensive and expensive holes.
  • the separation of the oil supply within the cylinder head arrangement in at least two oil galleries makes it possible to supply different consumers, since in particular through appropriate design of the individual oil supply channels and through a suitable connection to the oil supply to the cylinder block, differences in delivery volume and pressure are possible.
  • a first oil gallery can be formed in a particularly advantageous manner in the parting plane between the base housing and the carrier component, which can be connected to the oil supply within the cylinder block in a particularly short way. If such a first oil gallery is supplied via risers known per se within the cylinder block, a very direct connection is possible, which manages with very few holes and thus also keeps throttle losses low.
  • the second oil gallery can advantageously be formed in the parting plane delimited by the cylinder head cover, so that there is a spatial separation from the first oil gallery. This enables a multitude of consumers to be supplied without any crossings.
  • the supply of different consumers can be made possible in a particularly advantageous manner by forming two or more individual supply lines within an oil gallery formed in the respective parting plane. These supply lines can be arranged in a particularly simple manner so that they each extend in the longitudinal direction of the cylinder head arrangement and are formed in different flange sections of the respective flange surface.
  • a multi-cylinder internal combustion engine has a cylinder head arrangement, the basic housing 1 of which is screwed to a cylinder block 2.
  • the gas exchange of the internal combustion engine takes place via five gas exchange valves 3 per cylinder, three of which are designed as intake valves and two as exhaust valves.
  • the valve guides 4 to 8 of the gas exchange valves 3 are arranged around a central shaft 9 which opens into the combustion chamber 10 and serves to receive a spark plug 11, an injection valve or a glow plug.
  • the basic housing 1 has an upwardly open, trough-shaped interior, which is encompassed by three outer walls 12, 13, 14 and the outer walls 15 of an end-face chain case 16. This chain case 16 serves to accommodate drive means, not shown, for the two camshafts 17 and 18 actuating the gas exchange valves 3.
  • the camshaft 17 is designed as an exhaust camshaft and actuates the exhaust valves guided in the valve guides 7 and 8.
  • the camshaft 18 actuates the inlet valves guided in the valve guides 4, 5 and 6.
  • a flat parting surface (parting plane 19) is formed in the interior of the basic housing. This parting plane 19 is formed by flange surfaces 20 to 22, each of which surrounds the shaft 9 opening into the combustion chamber 10.
  • the flange-like end faces of bores 23, 24, which are used to fasten a carrier component 25, are arranged in this parting plane 19.
  • the one-piece support component 25 has a central web 26 in which three openings 27 are formed which extend the respective shaft 9.
  • flange surfaces 28 are formed around the openings 27, which correspond to the flange surfaces 20 to 22 of the basic housing.
  • the parting plane 19 there are also the lower end faces of two rows of bores 29, 30 which are aligned with the bores 20 and 21 and serve to fasten the carrier component 25 to the basic housing 1.
  • the central web 26 of the carrier component 25 is surrounded by a U-shaped outer web 31, which is composed of two opposite short web sides 32 and 33 and a longitudinal web 34 connecting them.
  • two tappet guides 35, 36 are formed per cylinder, which are arranged in the extension of the valve guides 4 and 5.
  • These tappet guides 35 and 36 serve to accommodate bucket tappet elements 37, via which the assigned inlet valves are actuated by the camshaft 18.
  • two further tappet guides 38, 39 are formed per cylinder, which are arranged in the extension of the valve guides 7 and 8.
  • These tappet guides serve for receiving tappet elements 40, via which the exhaust valves are actuated by the camshaft 17.
  • a lever guide 41 is also connected per cylinder, which is used to hold a hydraulic valve lash adjuster element, which is not shown and is known per se.
  • a roller rocker arm also not shown, is supported on this. which serves to actuate the third inlet valve guided in the valve guide 6.
  • the cup tappet elements are designed such that the cup tappet elements assigned to the inlet valves can be switched.
  • a hydraulic control enables a variation of the valve lift transmission from the intake camshaft to the respectively assigned gas exchange valve.
  • a stroke change or a stroke shutdown can then be achieved.
  • the two intake valves per cylinder actuated via tappet elements can be controlled independently of one another, as described below.
  • the third intake valve is actuated non-variably by the camshaft via a lever element.
  • the outlet valves are actuated by non-switchable tappet elements. Such valve actuation is described, for example, in DE 43 07 368 A1 mentioned at the beginning.
  • the carrier component 25 also serves as a lower bearing frame for mounting the camshafts 17 and 18.
  • the lower halves of bearing bores 42 are formed on the upper sides of the short web sides 32 and 33.
  • a transverse web 43 connected to the longitudinal web 34, in which the lower part of a bearing bore 44 is likewise formed.
  • Two further crossbars 45 go from the opposite side of the central web 26.
  • further bearing bores 46 are formed in these.
  • the cylinder head arrangement is closed off at the top by a cylinder head cover 47.
  • This lies in a common parting plane 48 on the outer walls 12 to 15 of the basic housing 1.
  • this cylinder head cover 47 rests on the upper sides of the central web 26, the outer web 31 (longitudinal web 34, short web sides 32, 33) and the cross webs 43 and 45, which are designed as flange surfaces.
  • the upper halves of the bearing bores 42, 44 and 46 are formed in the cylinder head cover 47.
  • the cylinder head cover is connected to the outer walls 12 to 15 of the basic housing by means of screw connections, not shown.
  • the cylinder head is connected to the support component 25 in the region of the bearing bores 42, 44 and 46 or in the region of the short web sides 32 and 33 and the cross webs 43 and 45 via four rows of screw connections 49 to 52.
  • the two middle rows of screw connections 50 and 51 penetrate the carrier component 25 and extend into the basic housing 1.
  • the oil supply to the cylinder head arrangement takes place via two risers (not shown in detail) in the cylinder block 2. These risers are each arranged in the annular space of one of the screw connections of the basic housing 1 with the cylinder block 2. From each of these annuli, designated 53 and 54, there is an oblique bore 55, 56, of which the oblique bore 55 opens into a recess 57 in the flange surface 20.
  • the second oblique bore 56 opens into a blind bore 58, the end face of which is designed as a flange surface 59. This flange surface 59 is also in the parting plane 19.
  • the recess 57 extends almost to the chain case 16 and merges into a bore 80.
  • transverse channels 60 and 61 open into this bore 80; these transverse channels 60 and 61 serve to supply consumers (not shown in detail) within the chain case, such as chain tensioners and / or to supply consumers arranged on the end face of the cylinder head arrangement, such as camshaft phase adjusters.
  • the groove 57 forms a first oil gallery 62 within the parting plane 19. The supply of further consumers is not shown here, but is easily possible.
  • a second oil gallery 63 is formed in the parting plane 48 between the carrier component 25 and the cylinder head cover 47.
  • a first supply line 64 of this oil gallery 63 is essentially formed by a longitudinal groove 65 in the longitudinal web 34. From this longitudinal groove 65 there are oblique bores 66 which open into the tappet guides 36 and serve to supply oil to the tappet elements arranged therein. Further oblique bores 67, which start from this longitudinal groove 65, open into the lever guide 41 and serve to supply the hydraulic valve clearance compensation element and the lever guide.
  • the supply line 64 formed by the longitudinal groove 65 is connected to a first control valve 69 via a channel 68 formed in the cylinder head cover 47 and shown schematically in FIG. 2.
  • This control valve 69 is connected via an input channel 70, which is also formed in the cylinder head cover, to a bore 71 which, starting from the parting plane 48, extends in the central web 26 and opens into the blind bore 58 in the basic housing.
  • a second supply line 72 of the oil gallery 62 is formed by a longitudinal groove 73 which, starting from the parting plane 48, is formed in the central web 26.
  • Short connecting grooves 74 also formed in the region of the parting plane, originate from this longitudinal groove 73. These pass into oblique bores 75, which open into the tappet guides 35 and serve to supply the tappet elements located therein.
  • From the longitudinal groove 73 two further oblique bores 76 and 77 extend from each cylinder, which open into the tappet guides 39 and 38 and serve to supply the tappet elements of the exhaust valves guided therein.
  • the longitudinal groove 73 or the supply line 72 is connected to the outlet of a second control valve 77 via a channel 76, shown schematically in FIG. 2, in the cylinder head cover 47.
  • the inlet side of the second control valve 77 is connected to a bore 79 via an inlet channel 78.
  • This bore 79 runs from the parting plane 48 in the central web 26 and opens in the region of the oblique bore 55 into the depression 57 of the basic housing 1.
  • the two control valves 69 and 77 are designed so that in their first switching position they throttle the oil flow into the downstream supply line 64 or 72 so that a predetermined limit pressure is not exceeded. This limit pressure is designed so that the switching function of the switchable valve lift transmission elements (tappet elements) does not take place. This ensures an adequate oil supply for lubrication purposes.
  • the two supply lines are pressurized with the full delivery pressure of the oil supply to the internal combustion engine or the oil pump, so that the hydraulically switchable tappet elements are switched over.
  • the two switchable cup tappet elements provided for each cylinder can be switched independently of one another. It is also possible to integrate the control valve (s) into the cylinder head cover or another component of the cylinder head arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP97106332A 1996-05-11 1997-04-17 Culasse pour moteur à combustion interne Expired - Lifetime EP0806552B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19619183 1996-05-11
DE19619183A DE19619183C1 (de) 1996-05-11 1996-05-11 Zylinderkopfanordnung einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0806552A1 true EP0806552A1 (fr) 1997-11-12
EP0806552B1 EP0806552B1 (fr) 2001-03-21

Family

ID=7794141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106332A Expired - Lifetime EP0806552B1 (fr) 1996-05-11 1997-04-17 Culasse pour moteur à combustion interne

Country Status (5)

Country Link
US (1) US5875754A (fr)
EP (1) EP0806552B1 (fr)
JP (1) JPH1047156A (fr)
KR (1) KR100456767B1 (fr)
DE (2) DE19619183C1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10331709A (ja) * 1997-05-29 1998-12-15 Suzuki Motor Corp 内燃機関のシリンダヘッド構造
DE19828307A1 (de) * 1998-06-25 1999-12-30 Porsche Ag Zylinderkopf einer Brennkraftmaschine
JP2000087796A (ja) * 1998-09-14 2000-03-28 Honda Motor Co Ltd Dohc式エンジンのシリンダヘッド
DE19928838C1 (de) * 1999-06-24 2001-02-15 Otmar Gaehrken Zylinderkopf
JP4396024B2 (ja) * 2000-03-13 2010-01-13 マツダ株式会社 シリンダヘッド構造
JP3911609B2 (ja) * 2002-06-29 2007-05-09 現代自動車株式会社 エンジンのシリンダヘッドオイル供給構造
JP4244597B2 (ja) * 2002-08-27 2009-03-25 トヨタ自動車株式会社 内燃機関
DE10250303A1 (de) * 2002-10-29 2004-05-19 Bayerische Motoren Werke Ag Zylinderkopf einer Brennkraftmaschine mit Nockenwellenlagerleiste
DE102004005796B4 (de) * 2004-02-06 2014-01-16 Daimler Ag Zylinderkopf für eine Brennkraftmaschine
US20070137604A1 (en) * 2005-12-21 2007-06-21 Silseth John R Motorcycle engine
US7360512B1 (en) 2006-12-22 2008-04-22 Chrysler Llc Low-thermal-inertia intake ports for port-injected, spark ignition engines and an associated manufacturing method
JP2011080384A (ja) * 2009-10-05 2011-04-21 Otics Corp 車両用エンジン
DE102011079166A1 (de) 2011-07-14 2013-01-17 Mahle International Gmbh Brennkraftmaschine
DE102015109802A1 (de) 2015-06-18 2016-12-22 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brennkraftmaschine
DE102016201414B4 (de) 2016-01-29 2017-10-05 Ford Global Technologies, Llc Brennkraftmaschine mit Ölkreislauf

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353988A1 (fr) * 1988-08-01 1990-02-07 Honda Giken Kogyo Kabushiki Kaisha Dispositif de commande de soupape pour moteur à combustion interne
DE4116942C1 (en) * 1991-05-24 1992-05-27 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Cylinder head for multicylinder IC engine - has accessory cover bolts with oil bores for guiding oil to bearing points and valve tappets
DE4428681A1 (de) * 1993-09-30 1995-04-06 Suzuki Motor Co Struktur einer Zylinderkopfbaugruppe
DE4421057C1 (de) * 1994-06-16 1995-09-14 Porsche Ag Zylinderkopfanordnung einer Brennkraftmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3641129C1 (de) * 1986-12-02 1987-07-30 Daimler Benz Ag Vorrichtung zur Lagerung von zwei Nockenwellen im Zylinderkopf einer mehrzylindrigen Reihenbrennkraftmaschine
JPH0482343U (fr) * 1990-11-29 1992-07-17
DE4307368A1 (de) * 1993-03-09 1994-09-15 Porsche Ag Zylinderkopf für eine Brennkraftmaschine
DE4324791A1 (de) * 1993-07-23 1995-01-26 Porsche Ag Zylinderkopfanordnung einer Brennkraftmaschine
US5458100A (en) * 1994-11-10 1995-10-17 Kohler Co. Pilot ring attachment assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353988A1 (fr) * 1988-08-01 1990-02-07 Honda Giken Kogyo Kabushiki Kaisha Dispositif de commande de soupape pour moteur à combustion interne
DE4116942C1 (en) * 1991-05-24 1992-05-27 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Cylinder head for multicylinder IC engine - has accessory cover bolts with oil bores for guiding oil to bearing points and valve tappets
DE4428681A1 (de) * 1993-09-30 1995-04-06 Suzuki Motor Co Struktur einer Zylinderkopfbaugruppe
DE4421057C1 (de) * 1994-06-16 1995-09-14 Porsche Ag Zylinderkopfanordnung einer Brennkraftmaschine

Also Published As

Publication number Publication date
DE19619183C1 (de) 1997-07-03
US5875754A (en) 1999-03-02
EP0806552B1 (fr) 2001-03-21
DE59703162D1 (de) 2001-04-26
KR100456767B1 (ko) 2005-04-06
KR970075289A (ko) 1997-12-10
JPH1047156A (ja) 1998-02-17

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