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EP0208074A2 - Water pump - Google Patents

Water pump Download PDF

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Publication number
EP0208074A2
EP0208074A2 EP86105711A EP86105711A EP0208074A2 EP 0208074 A2 EP0208074 A2 EP 0208074A2 EP 86105711 A EP86105711 A EP 86105711A EP 86105711 A EP86105711 A EP 86105711A EP 0208074 A2 EP0208074 A2 EP 0208074A2
Authority
EP
European Patent Office
Prior art keywords
pump
following
water pump
housing
water
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.)
Withdrawn
Application number
EP86105711A
Other languages
German (de)
French (fr)
Other versions
EP0208074A3 (en
Inventor
Ludwig Neueder
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.)
Thyssen Plastik Anger KG
Original Assignee
Thyssen Plastik Anger KG
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 Thyssen Plastik Anger KG filed Critical Thyssen Plastik Anger KG
Publication of EP0208074A2 publication Critical patent/EP0208074A2/en
Publication of EP0208074A3 publication Critical patent/EP0208074A3/en
Withdrawn legal-status Critical Current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
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/60—Assembly methods
    • F05B2230/601—Assembly methods using limited numbers of standard modules which can be adapted by machining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/303—Retaining components in desired mutual position with a bayonet coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/06—Polyamides, e.g. NYLON
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the invention relates to a water pump or dergi. and for example for pumping around cooling water for internal combustion engines, which essentially consists of the functional elements pump block and pump holder.
  • both the pump unit and the pump housing are made of metal, are screwed to one another and to the engine block via a flange connection. If replacement work is necessary, the water pump, i.e. the pump set, which is changed, e.g. with corrosion or Bearing damage, leaks, etc. is required.
  • the complete pump housing is only exchanged in the rarest of cases, unless e.g. Such an exchange is necessary for corrosion or frost damage.
  • a water pump constructed in this way has various disadvantages. So is the change, i.e. Replacing parts of such a water pump is also time-consuming because it is cumbersome, but there are also serious disadvantages, such as high weight, corrosion of the individual parts, low economic viability, also due to complex storage, and a lower efficiency, due to fluid friction within the parts of the water pump made of cast metal.
  • the invention is therefore based on the object of creating a water pump or the like which reliably avoids the disadvantages of the known pumps and similar units and which facilitates the assembly, disassembly or replacement of individual parts or assemblies and reduces them to a few manipulations, as well as a simplified structure and the possibility of combining different pump parts with each other, as well as increasing the efficiency.
  • a pump receptacle into which a pump block with a pump impeller, pump shaft, bearing, and seals and locking ring can be inserted.
  • the pump receptacle is advantageously integrated into the pump housing.
  • the pump receptacle is advantageously integrated in the cover of a pump housing.
  • the pump receptacle is advantageously integrated in the engine block.
  • the pump housing advantageously consists of a base body and a housing cover, it being possible for the housing base body and cover to be made in one or more parts.
  • the pump housing is advantageously provided with a flange connection to the engine block, with cooling water connections and a thermostat connection.
  • the elements of the pump advantageously consist partly of plastic, partly of metal.
  • the pump block is advantageously coupled to the pump receptacle with a quick-release fastener.
  • quick fasteners are provided between the pump housing and the thermostat, engine block, cooling water pipes, etc.
  • the quick-release fasteners are advantageously integrated in the pump housing.
  • a quick-release fastener which is self-retaining in the direction of rotation of the drive disk of the pump is advantageously provided between the pump block and the pump receptacle.
  • the quick-release fastener is advantageously designed as a bayonet fastener.
  • the pump block is advantageously secured with a locking ring in the opposite direction of rotation after the quick-release fastener has snapped into place.
  • the locking ring advantageously includes snap lips and locking bolts.
  • the locking ring on the pump bearing element is advantageously guided axially in guide grooves and can be locked in the unlocking and locking position.
  • the torque exerted by the drive belt, which acts on the pump bearing element via the shaft, is advantageously absorbed via an axially offset multiple bearing.
  • the pump bearing element can advantageously be combined with different pump housings.
  • the pump bearing element advantageously contains sealing elements against the drive shaft, as well as against the pump receptacle and bearings for receiving the shaft.
  • a radial seal is advantageously provided between the pump bearing element and the pump receptacle.
  • the pump impeller is advantageously made of plastic.
  • the housing cover is advantageously made of plastic.
  • the pump housing is advantageously made of plastic.
  • the pump bearing element advantageously consists of plastic.
  • the locking ring is advantageously made of plastic.
  • Sealing rings are advantageously provided as sealing means.
  • Polyamide is advantageously provided as the material for the pump bearing element, the housing cover, the pump housing, the impeller and the individual parts thereof.
  • a polyether sulfone is advantageously provided as the material for the pump parts.
  • a polyether ketone is advantageously provided for the parts of the pump.
  • the division of the water pump functional unit into parts that can be separated from one another, such as a pump block with a pump bearing element, drive shaft, sealing element bearing and pump impeller, as well as a pump holder integrated in the pump housing, housing cover and motor block means that any defective parts can be replaced without any problems.
  • a pump block with a pump bearing element, drive shaft, sealing element bearing and pump impeller, as well as a pump holder integrated in the pump housing, housing cover and motor block means that any defective parts can be replaced without any problems.
  • This also enables the pump block to be combined with different housings, for example, and vice versa, which simplifies warehousing.
  • the housing cover can be made of metal and the pump block made of plastic.
  • FIG. 1 shows a perspective view of the pump block 1 and the pump receptacle 11 in an exploded view.
  • the pump block 1 essentially consists of the pump assembly 7, the drive shaft 8, the pump impeller 9 and the locking ring 17.
  • FIG. 2 shows the pump block 1 when it is inserted into the pump receptacle 11.
  • the locking ring 17 can be provided with a cover 17a, which additionally prevent dirt from entering the pump block.
  • the two positions are ensured by the snap lips 17c in a guide groove 5 by latching.
  • the pump bearing element 7 is sealed with one or more sealing rings 10 or 10a against the housing cover 11a in the pump receptacle 11.
  • a plurality of knobs 4 are provided, which are inserted into the recess opening of the recesses 12 of the pump receptacle 11 and lock in the pump receptacle 11 after the pump bearing element 7 has been rotated.
  • a seal 10 and / or 10a seals this pump bearing element 7 from the pump receptacle 11.
  • the stiffening ribs 2 are attached to the pump bearing element 7 in order to give the pump block 1 the necessary strength in the operating state.
  • a stop edge 3 is provided in the upper part of the pump bearing element 7, which serves as a stop on the pump receptacle 11.
  • Various connections are provided in the pump housing 13, so one Flange connection 14 to the engine block, cooling water connections 15a and 15b, and a flange connection 16 for the thermostat. These flange connections can be designed in the same quick-lock type as pump block 1 with pump receptacle 11.
  • FIG. 3 shows the pump block 1 inserted in the pump receptacle 11 and locked. It can be clearly seen that the pump block 1 is inserted with the stop edge 3a up to the stop edge 3 in the pump receptacle 11 and the knobs 4 serving for locking are engaged in the recess for the locking 12.
  • the snap lip 17c slides into the undercut 6 in the guide groove 5 and the securing ring 17 covers the pump receptacle 11 and the stop edge 3a of the pump bearing element 7 on the end side.
  • the moment 18 exerted by the drive belt is absorbed by the double bearing in the areas 10 and 19.
  • FIG. 4 shows a top view of the pump block 1, the snap ring 17 with its snap lip 17c being clearly visible and also the guide groove 5 in the pump bearing element 7.
  • FIG. 5 and 6 show the anti-rotation device of the pump block 1 against the pump receptacle 11.
  • the locking bolt 17b provided on the locking ring 17 will slide after the axial movement of the locking ring 17 against the pump receptacle 11 into the recess opening of the recess 12 and thereby achieve a turnstile between the stop edge 3 of the pump bearing element 7 and the pump receptacle 11.
  • FIG. 7 shows an example of a water pump in an embodiment with pump block 1, housing cover 11 with pump receptacle 11 and pump housing 13 with thermostatic connection 16, water connections 15a, 15b and connecting flange 14 to the engine block in an exploded view.
  • Pump housing 13 and housing cover 11 a with pump receptacle 11 can be formed as a unit, the pump receptacle 11 can also be integrated into the engine block itself.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The invention proposes a water pump whose functional unit is split into parts which can readily be separated from one another, namely a pump block and a pump holder, and which is manufactured entirely or partially of plastic, the connection of the individual parts to one another and of the overall pump to the engine block or thermostat connection and cooling water connections being implemented by means of so-called quick-release fasteners, so that assembly and dismantling are considerably simplified. The pump block is designed such that it can be combined, alternatively, with several different housings or housing covers with a corresponding pump holder, and is sealed with respect to the pump holder or to the housing by means of sealing rings or the pump holder can be integrated directly into the engine block using a quick-release fastener. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Wasserpumpe oder dergi. und beispielsweise zum Umpumpen von Kühlwasser für Verbrennungsmotoren, die im wesentlichen aus den Funktionselementen Pumpenblock und Pumpenaufnahme besteht.The invention relates to a water pump or dergi. and for example for pumping around cooling water for internal combustion engines, which essentially consists of the functional elements pump block and pump holder.

Bei bekannten Wasserpumpen für den Einsatz an Verbrennungsmotoren ist sowohl das Pumpenaggregat, als auch das Pumpengehäuse aus Metall gefertigt, über eine Flanschverbindung miteinander und mit dem Motorblock verschraubt. Bei notwendigen Austauscharbeiten wird die Wasserpumpe, d.h. das Pumpenaggregat, gewechselt, was z.B. bei Korrosionsbzw. Lagerschäden, Undichtigkeiten, etc. erforderlich ist. Das komplette Pumpengehäuse wird nur in den seltensten Fällen ausgetauscht, es sei denn durch z.B. Korrosionsoder Frostschäden ist eine solcher Austausch notwendig.In known water pumps for use on internal combustion engines, both the pump unit and the pump housing are made of metal, are screwed to one another and to the engine block via a flange connection. If replacement work is necessary, the water pump, i.e. the pump set, which is changed, e.g. with corrosion or Bearing damage, leaks, etc. is required. The complete pump housing is only exchanged in the rarest of cases, unless e.g. Such an exchange is necessary for corrosion or frost damage.

Eine solcherart aufgebaute Wasserpumpe weist verschiedene Nachteile auf. So ist der Wechsel, d.h. Austausch, von Teilen einer solchen Wasserpumpe zwar auch zeitaufwendig, weil umständlich, doch treten noch gravierende Nachteile hinzu, wie z.B. hohes Gewicht, Korrosion der einzelnen Teile, geringe Wirtschaftiichkeit, auch durch aufwendige Lagerhaltung bedingt, sowie ein geringerer Wirkungsgrad, bedingt durch Flüssigkeitsreibung innerhalb der aus Metallguß bestehenden Teile der Wasserpumpe.A water pump constructed in this way has various disadvantages. So is the change, i.e. Replacing parts of such a water pump is also time-consuming because it is cumbersome, but there are also serious disadvantages, such as high weight, corrosion of the individual parts, low economic viability, also due to complex storage, and a lower efficiency, due to fluid friction within the parts of the water pump made of cast metal.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Wasserpumpe oder dergl. zu - schaffen, die die Nachteile der bekannten Pumpen und ähnlichen Aggregaten mit Sicherheit vermeidet und die Montage, Demontage, bzw. den Austausch einzelner Teile oder Baugruppen erleichtert und auf wenige Handgriffe reduziert, sowie einen vereinfachten Aufbau und Kombinationsmöglichkeit verschiedener Pumpenteile untereinander besitzt, sowie den Wirkungsgrad heraufsetzt.The invention is therefore based on the object of creating a water pump or the like which reliably avoids the disadvantages of the known pumps and similar units and which facilitates the assembly, disassembly or replacement of individual parts or assemblies and reduces them to a few manipulations, as well as a simplified structure and the possibility of combining different pump parts with each other, as well as increasing the efficiency.

Erfindungsgemäß wird dies dadurch erreicht, daß eine Pumpenaufnahme vorgesehen ist, in die ein Pumpenblock mit Pumpenlaufrad, -welle, -lager, sowie -dichtungen und Sicherungsring einsetztbar ist.According to the invention, this is achieved in that a pump receptacle is provided, into which a pump block with a pump impeller, pump shaft, bearing, and seals and locking ring can be inserted.

Vorteilhafterweise ist die Pumpenaufnahme in das Pumpengehäuse integriert.The pump receptacle is advantageously integrated into the pump housing.

Vorteilhafterweise ist die Pumpenaufnahme in dem Deckel eines Pumpengehäuses integriert.The pump receptacle is advantageously integrated in the cover of a pump housing.

Vorteilhafterweise ist die Pumpenaufnahme in den Motorblock integriert.The pump receptacle is advantageously integrated in the engine block.

Vorteilhafterweise besteht das Pumpengehäuse aus Grundkörper und Gehäusedeckel, wobei wahlweise Gehäusegrundkörper und -deckel ein-oder mehrteilig sein können.The pump housing advantageously consists of a base body and a housing cover, it being possible for the housing base body and cover to be made in one or more parts.

Vorteilhafterweise ist das Pumpengehäuse mit einem Flanschanschluß zum Motorblock, mit Kühlwasseranschlüssen und einem Thermostatanschluß versehen.The pump housing is advantageously provided with a flange connection to the engine block, with cooling water connections and a thermostat connection.

Vorteilhafterweise bestehen die Elemente der Pumpe teilweise aus Kunststoff, teilweise aus Metall.The elements of the pump advantageously consist partly of plastic, partly of metal.

Vorteilhafterweise ist der Pumpenblock mit einem Schnellverschluß mit der Pumpenaufnahme gekoppelt.The pump block is advantageously coupled to the pump receptacle with a quick-release fastener.

Vorteilhafterweise sind zwischen Pumpengehäuse und Thermostat, Motorblock, Kühlwasserleitungen, usw. Schnellverschlüsse vorgesehen.Advantageously, quick fasteners are provided between the pump housing and the thermostat, engine block, cooling water pipes, etc.

Vorteilhafterweise sind die Schnellverschlüsse im Pumpengehäuse integriert.The quick-release fasteners are advantageously integrated in the pump housing.

Vorteilhafterweise ist zwischen Pumpenblock und Pumpenaufnahme ein sich in Drehrichtung der Antriebsscheibe der Pumpe selbsthaltender Schnellverschluß vorgesehen.A quick-release fastener which is self-retaining in the direction of rotation of the drive disk of the pump is advantageously provided between the pump block and the pump receptacle.

Vorteilhafterweise ist der Schnellverschluß als Bajonettverschluß ausgeführt.The quick-release fastener is advantageously designed as a bayonet fastener.

Vorteilhafterweise ist der Pumpenblock nach Einrasten des Schnellverschlusses mit einem Sicherungsring in Gegendrehrichtung gesichert.The pump block is advantageously secured with a locking ring in the opposite direction of rotation after the quick-release fastener has snapped into place.

Vorteilhafterweise beinhaltet der Sicherungsring Schnapplippen und Sicherungsriegel.The locking ring advantageously includes snap lips and locking bolts.

Vorteilhafterweise ist der Sicherungsring auf dem Pumpenlagerelement in Führungsnuten axial geführt und in Ent-und Sicherungsposition einrastbar .The locking ring on the pump bearing element is advantageously guided axially in guide grooves and can be locked in the unlocking and locking position.

Vorteilhafterweise wird das vom Antriebsriemen ausgeübte Moment, das über die Welle auf das Pumpenlagerelement wirkt, über eine axial versetzte Mehrfachlagerung aufgenommen.The torque exerted by the drive belt, which acts on the pump bearing element via the shaft, is advantageously absorbed via an axially offset multiple bearing.

Vorteilhafterweise ist das Pumpenlagerelement mit verschiedenen Pumpengehäusen kombinierbar.The pump bearing element can advantageously be combined with different pump housings.

Vorteilhafterweise beinhaltet das Pumpenlagerelement Dichtelemente gegen die Antriebswelle, sowie gegen die Pumpenaufnahme und Lager zur Aufnahme der Welle.The pump bearing element advantageously contains sealing elements against the drive shaft, as well as against the pump receptacle and bearings for receiving the shaft.

Vorteilhafterweise ist eine Radialdichtung zwischen Pumpenlagerelement und Pumpenaufnahme vorgesehen.A radial seal is advantageously provided between the pump bearing element and the pump receptacle.

Vorteilhafterweise besteht das Pumpenlaufrad aus Kunststoff.The pump impeller is advantageously made of plastic.

Vorteilhafterweise besteht der Gehäusedeckel aus Kunststoff.The housing cover is advantageously made of plastic.

Vorteilhafterweise besteht das Pumpengehäuse aus Kunststoff.The pump housing is advantageously made of plastic.

Vorteilhafterweise besteht das Pumpenlagereiement aus Kunstoff.The pump bearing element advantageously consists of plastic.

Vorteilhafterweise besteht der Sicherungsring aus Kunststoff.The locking ring is advantageously made of plastic.

Vorteilhafterweise sind als Dichtmittel Dichtringe vorgesehen.Sealing rings are advantageously provided as sealing means.

Vorteilhafterweise ist als Werkstoff für das Pumpenlagerelement, den Gehäusedeckei,das Pumpengehäuse,das Laufrad, sowie deren Einzelteile Polyamid vorgesehen.Polyamide is advantageously provided as the material for the pump bearing element, the housing cover, the pump housing, the impeller and the individual parts thereof.

Vorteilhafterweise ist für die Pumpenteile ein Polyäthersulfon als Werkstoff vorgesehen.A polyether sulfone is advantageously provided as the material for the pump parts.

Vorteilhafterweise ist für die Teile der Pumpe ein Polyätherketon vorgesehen.A polyether ketone is advantageously provided for the parts of the pump.

Mit der erfindungsgemäßen Wasserpumpe sind mehrere Vorteile gleichzeitig erzielt. So sind geringes Gewicht, Wegfall von Korrosion, verbesserter Wirkungsgrad und erhöhte Wirtschaftlichkeit, einfacher Einbau und einfacher Wechsel der Funktionselemente, bzw. der einzelnen Teile der Wasserpumpe gegeben.With the water pump according to the invention, several advantages are achieved simultaneously. This ensures low weight, no corrosion, improved efficiency and increased economy, simple installation and simple replacement of the functional elements or the individual parts of the water pump.

Die Aufteilung der Funktionseinheit Wasserpumpe in voneinander trennbare Teile, wie Pumpenblock mit Pumpenlagerelement, Antriebswelle, Dichtelementenlager und Pumpenlaufrad, sowie Pumpenaufnahme integriert in Pumpengehäuse, Gehäusedeckel und Motorblock läßt den Austausch evtl defekter Teile problemlos vor sich gehen. Auch ist dadurch die Möglichkeit gegeben, beispieisweise den Pumpenblock mit unterschiedlichen Gehäusen und umgekehrt zu kombinieren, was die Lagerhattung vereinfacht. Dies gilt auch für die Wahl der Werkstoffe, z.B. kann der Gehäusedeckel aus Metall bestehen und der Pumpenblock aus Kunststoff. Die Einrichtung von Schnellverbindungen anstelle von Schrauben für die Verbindung der einzelnen Teile der Wasserpumpe untereinander und der Wasserpumpe als ganzem zum Motorblock, bzw. zu übrigen Anschlüssen, wie Thermostat, Wasser, usw. ist eine weitere Montage-und Demontagehitfe. Durch die Gestattung von Pumpenblock, Gehäusedeckel und Pumpengehäuse aus Kunststoff, wie z.B. Polyamid, Polyäthersulfon oder polyätherketon und die mit dem Kunststoff ohne Nacharbeit erzielbare glattere Oberfläche ist außer der verbesserten Wirtschaftlichkeit, besonders die Flüssigkeitsreibung innerhalb des Aggregates herabgesetzt, was einen verbesserten Wirkungsgrad von ca. 3 -5 % der Wasserpumpe bedeutet. Schließlich ist durch die Verwendung von Kunststoffen mit Selbstschmiereigenschaften auch für Lager eine weitere Konstruktionsvariante gegeben. Die Dichtungen können z.B. dabei außerhalb des Lagers vorgsehen sein.The division of the water pump functional unit into parts that can be separated from one another, such as a pump block with a pump bearing element, drive shaft, sealing element bearing and pump impeller, as well as a pump holder integrated in the pump housing, housing cover and motor block means that any defective parts can be replaced without any problems. This also enables the pump block to be combined with different housings, for example, and vice versa, which simplifies warehousing. This also applies to the choice of materials, e.g. the housing cover can be made of metal and the pump block made of plastic. The installation of quick connections instead of screws for connecting the individual parts of the water pump to one another and the water pump as a whole to the engine block or to other connections, such as thermostat, water, etc., is a further assembly and disassembly aid. By allowing the pump block, housing cover and pump housing to be made of plastic, e.g. In addition to improved economy, polyamide, polyether sulfone or polyether ketone and the smoother surface that can be achieved with the plastic without rework is particularly reduced, which means an improved efficiency of approx. 3 -5% of the water pump. Finally, by using plastics with self-lubricating properties, another design variant is also available for bearings. The seals can e.g. be outside the camp.

Die Erfindung ist nachstehend anhand eines in den Abbildungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigt:

  • Figur 1 eine perspektivische Darstellung der Wasserpumpe,
  • Figur 2 einen Teilschnitt des Pumpenblockes vor,
  • Figur 3 einen Teilschnitt des Pumpenblockes nach der Sicherung mit der Pumpenaufnahme,
  • Figur 4 eine Draufsicht auf den Pumpenblock mit Sicherungsring,
  • Figur 5 einen Teilschnitt der Verdrehsicherung mit der Raststellung "offen", und
  • Figur 7 eine perspektivische Darstellung einer Wasserpumpe mit Pumpenblock, Pumpengehäuse und Gehäusedeckel mit Pumpenaufnahme.
The invention is explained below with reference to an embodiment shown in the figures. It shows:
  • FIG. 1 shows a perspective view of the water pump,
  • FIG. 2 shows a partial section of the pump block,
  • FIG. 3 shows a partial section of the pump block after securing with the pump holder,
  • FIG. 4 shows a top view of the pump block with a locking ring,
  • Figure 5 is a partial section of the anti-rotation device with the latching position "open", and
  • Figure 7 is a perspective view of a water pump with pump block, pump housing and housing cover with a pump holder.

Die Figur 1 zeigt eine perspektivische Darstellung des Pumpenblockes 1 und der Pumpenaufnahme 11 in explosionsartiger Darstellutng. Der Pumpenblock 1 besteht im wesentlichen aus dem Pumpeniagereiement7,der Antriebswelle 8, dem Pumpenlaufrad 9 und dem Sicherungsring 17.Figure 1 shows a perspective view of the pump block 1 and the pump receptacle 11 in an exploded view. The pump block 1 essentially consists of the pump assembly 7, the drive shaft 8, the pump impeller 9 and the locking ring 17.

Die Figur 2 zeigt den Pumpenblock 1 beim Einsetzen in die Pumpenaufnahme 11. Zwischen dem Rand des Sicherungsringes 17 und dem oberen Rand der Pumpenaufnahme 11 ist noch ein Abstand vorhanden, während die der Verriegelung des Pumpenbiockes 1 in der Pumpenaufnahme 11 dienenden Noppen 4 bereits in die Ausparungsmündungen der Aussparung 12 eingasetzt sind. Der Sicherungsring 17 kann mit einer Abdeckung 17a versehen sein, die das Eindringen von Schmutz in den Pumpenblock zusätzlich verhindern. Am Sicherungsring 17 ist außerdem ein Sicherungsriegel 17b angebracht, der nach Einschieben des Sicherungsringes 17 von Stellung "offen" nach Stellung "zu" (siehe Figur 3) das Verdrehen des Pumpenblockes 1 gegen die Pumpenaufnahme 11 und damit ein Herausfallen des Pumpenblockes 1 verhindert. Die beiden Stellungen werden durch die Schnapplippen 17c in einer Führungsnut 5 durch Einrasten gewährleistet. Das Pumpenlagerelement 7 ist mit einem oder mehreren Dichtringen 10, bzw. 10a gegenüber dem Gehäusedeckel 11a in der Pumpenaufnahme 11 abgedichtet.FIG. 2 shows the pump block 1 when it is inserted into the pump receptacle 11. There is still a distance between the edge of the locking ring 17 and the upper edge of the pump receptacle 11, while the knobs 4 serving to lock the pump block 1 in the pump receptacle 11 are already in the Recess mouths of the recess 12 are inserted. The locking ring 17 can be provided with a cover 17a, which additionally prevent dirt from entering the pump block. On the locking ring 17 there is also a locking bolt 17b which, after the locking ring 17 has been pushed in from the "open" to the "closed" position (see FIG. 3), prevents the pump block 1 from rotating against the pump receptacle 11 and thus preventing the pump block 1 from falling out. The two positions are ensured by the snap lips 17c in a guide groove 5 by latching. The pump bearing element 7 is sealed with one or more sealing rings 10 or 10a against the housing cover 11a in the pump receptacle 11.

Am äußeren Umfang des Pumpenlagerelementes 7 sind mehrere Noppen 4 vorgesehen, die in die Aussparungsmündung der Aussparungen 12 der Pumpenaufnahme 11 eingesetzt und nach Verdrehen des Pumpenlagereiementes 7 in der Pumpenaufnahme 11 verriegeln. Eine Dichtung 10 und/oder 10a dichtet dieses Pumpenlagerelement 7 gegenüber Pumpenaufnahme 11 ab. Die Versteifungsrippen 2 sind am Pumpenlagerelement 7 angebracht, um den Pumpenblock 1 im Betriebszustand die notwendige Festigkeit zu geben. Ein Anschlagrand 3 ist im oberen Teil des Pumpenlagerelementes 7 vorgesehen, der als Anschlag an der Pumpenaufnahme 11 dient. Im Pumpengehäuse 13 sind verschiedene Anschiüsse vorgesehen, so ein Flanschanschluß 14 zum Motorblock, Kühlwasseranschlüsse 15a und 15b, sowie ein Flanschanschluß 16 für den Thermostat. Diese Flanschanschlüsse können in identischer Schnellverschlußart wie Pumpenblock 1 mit Pumpenaufnahme 11 ausgeführt sein.On the outer circumference of the pump bearing element 7, a plurality of knobs 4 are provided, which are inserted into the recess opening of the recesses 12 of the pump receptacle 11 and lock in the pump receptacle 11 after the pump bearing element 7 has been rotated. A seal 10 and / or 10a seals this pump bearing element 7 from the pump receptacle 11. The stiffening ribs 2 are attached to the pump bearing element 7 in order to give the pump block 1 the necessary strength in the operating state. A stop edge 3 is provided in the upper part of the pump bearing element 7, which serves as a stop on the pump receptacle 11. Various connections are provided in the pump housing 13, so one Flange connection 14 to the engine block, cooling water connections 15a and 15b, and a flange connection 16 for the thermostat. These flange connections can be designed in the same quick-lock type as pump block 1 with pump receptacle 11.

Die Figur 3 zeigt den Pumpenblock 1 in der Pumpenaufnahme 11 eingesetzt und verriegelt. Es ist dabei deutlich zu erkennen, daß der Pumpenblock 1 mit dem Anschlagrand 3a bis zum Anschlagrand 3 in der Pumpenaufnahme 11 eingesetzt ist und die der Verriegelung dienenden Noppen 4 in der Aussparung für die Verriegelung 12 eingerastet sind. Die Schnapplippe 17c in der Führungsnut 5 entlang gleitend in deren Hinterschneidung 6 einrastet und der Sicherungsring 17 stimseitig Pumpenaufnahme 11 und Anschlagrand 3a des Pumpenlagerelementes 7 abdeckt. Das vom Antriebsriemen ausgeübte Moment 18 wird durch die Doppellagerung im Bereich 10 und 19 aufgenommen.FIG. 3 shows the pump block 1 inserted in the pump receptacle 11 and locked. It can be clearly seen that the pump block 1 is inserted with the stop edge 3a up to the stop edge 3 in the pump receptacle 11 and the knobs 4 serving for locking are engaged in the recess for the locking 12. The snap lip 17c slides into the undercut 6 in the guide groove 5 and the securing ring 17 covers the pump receptacle 11 and the stop edge 3a of the pump bearing element 7 on the end side. The moment 18 exerted by the drive belt is absorbed by the double bearing in the areas 10 and 19.

Die Figur 4 zeigt eine Draufsicht auf den Pumpenblock 1, wobei der Sicherungsring 17 mit seiner Schnapplippe 17c deutlich zu erkennen ist und ebenso die Führungsnut 5 im Pumpenlagerelement 7.FIG. 4 shows a top view of the pump block 1, the snap ring 17 with its snap lip 17c being clearly visible and also the guide groove 5 in the pump bearing element 7.

In Figur 5 und 6 ist die Verdrehsicherung des Pumpenblockes 1 gegen die Pumpenaufnahme 11 gezeigt. Der am Sicherungsring 17 vorgesehene Sicherungsriegel 17b wird nach axialer Bewegung des Sicherungsringes 17 gegen die Pumpenaufnahme 11 in die Aussparungsmündung der Aussparung 12 gleiten und dadurch eine Drehsperre zwischen Anschlagrand 3 des Pumpenlagerelementes 7 und der Pumpenaufnahme 11 erzielen.5 and 6 show the anti-rotation device of the pump block 1 against the pump receptacle 11. The locking bolt 17b provided on the locking ring 17 will slide after the axial movement of the locking ring 17 against the pump receptacle 11 into the recess opening of the recess 12 and thereby achieve a turnstile between the stop edge 3 of the pump bearing element 7 and the pump receptacle 11.

In Figur 7 ist als Beispiel eine Wasserpumpe in einer Ausbildung mit Pumpenblock 1, Gehäusedeckel 11 mit Pumpenaufnahme 11 und Pumpengehäuse 13 mit Thermostatanschluß 16, Wasseranschlüssen 15a,15b und Anschlußflansch 14 zum Motorblock in Explosionszeichnung dargestellt. Pumpengehäuse 13 und Gehäusedeckel 11 a mit Pumpenaufnahme 11 können als Einheit ausgebildet, auch kann die Pumpenaufnahme 11 in den Motorblock selbst integriert sein.FIG. 7 shows an example of a water pump in an embodiment with pump block 1, housing cover 11 with pump receptacle 11 and pump housing 13 with thermostatic connection 16, water connections 15a, 15b and connecting flange 14 to the engine block in an exploded view. Pump housing 13 and housing cover 11 a with pump receptacle 11 can be formed as a unit, the pump receptacle 11 can also be integrated into the engine block itself.

Claims (27)

1. Wasserpumpe oder dergl. und beispielsweise zum Umpumpen von Kühlwasser für Verbrennungsmototren, die im wesentlichen aus den Funktionselementen Pumpenblock und Pumpenaufnahme besteht, dadurch aekennzeichnet, daß eine Pumpenaufnahme (11) vorgesehen ist, in die ein Pumpenblock (1) mit Pumpeniaufrad (9), -welle (8), -lager (7), sowie Dichtungen (10,10a) und Sicherungsring (17) einsetzbar ist.1. Water pump or the like. For example, for pumping around cooling water for internal combustion engines, which essentially consists of the functional elements pump block and pump receptacle, characterized in that a pump receptacle (11) is provided, into which a pump block (1) with pump impeller (9) , shaft (8), bearing (7), and seals (10, 10a) and circlip (17) can be used. 2. Wasserpumpe oder dergl. nach Anspruch 1, dadurch aekennzeichnet , daß die Pumpenaufnahme (11) in das Pumpengehäuse (13) integriert ist.2. Water pump or the like. According to claim 1, characterized in that the pump receptacle (11) is integrated in the pump housing (13). 3. Wasserpumpe oder dergl. nach Anspruch 1 und 2, dadurch aekennzeichnet, daß die Pumpenaufnahme (11) in dem Deckel eines Pumpengehäuses (13) integriert ist.3. Water pump or the like. According to claim 1 and 2, characterized in that the pump receptacle (11) is integrated in the cover of a pump housing (13). 4. Wasserpumpe oder dergl. nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Pumpenaunahme (11) in den Motorblock integriert ist.4. Water pump or the like. According to claim 1 to 3, characterized in that the pump recess (11) is integrated in the engine block. 5. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet. daß das Pumpengehäuse (11) aus Grundkörper und Gehäusedeckel (11 a) besteht, wobei wahlweise Gehäusegrundkörper (11) und -deckel (11a) ein-oder mehrteilig ausgebildet sind.5. Water pump or the like. According to claim 1 and one of the following, characterized. that the pump housing (11) consists of the base body and the housing cover (11 a), with the housing base body (11) and cover (11a) optionally having one or more parts. 6. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch aekennzeichnet. daß das Pumpengehäuse (11) mit einem Flanschanschluß (14) zum Motorblock, mit Kühlwasseranschlüssen (15a,15b) und einem Thermostatanschluß (16) versehen ist.6. Water pump or the like. According to claim 1 and one of the following, characterized. that the pump housing (11) is provided with a flange connection (14) to the engine block, with cooling water connections (15a, 15b) and a thermostat connection (16). 7. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch aekennzeichnet. daß der Pumpenblock (1) mit einem Schnellverschluß mit der Pumpenaufnahme (11) gekoppelt ist.7. Water pump or the like. According to claim 1 and one of the following, characterized. that the pump block (1) is coupled to the pump receptacle (11) with a quick-release fastener. 8. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch aekennzeichnet, daß zwischen Pumpengehäuse (13) und Thermostat, Motorblock, Kühlwasserleitungen, usw. Schnellverschlüsse vorgesehen sind. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch aekennzeichnet, daß die Schnellverschlüsse im Pumpengehäuse - (13) integriert sind. 8. Water pump or the like. According to claim 1 and one of the following, characterized in that quick fasteners are provided between the pump housing (13) and thermostat, engine block, cooling water pipes, etc. Water pump or the like. According to claim 1 and one of the following, characterized in that the quick-release fasteners are integrated in the pump housing - (13). 10. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß zwischen Pumpenblock (1) und Pumpenaufnahme (11) ein sich in Dreh richtung der Antriebsscheibe (8) der Pumpe selbsthaltender Schnellverschluß vorgesehen ist.10. Water pump or the like. According to claim 1 and one of the following, characterized in that between the pump block (1) and pump receptacle (11) is provided in the direction of rotation of the drive disc (8) of the pump self-locking quick release. 11. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gskennzeichnet, daß der Schnellverschluß als Bajonettverschluß ausgeführt ist.11. Water pump or the like. According to claim 1 and one of the following, characterized in that the quick-action lock is designed as a bayonet lock. 12. Wasserpumpe oder dergl nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß der Pumpenblock (1) nach Einrasten des Schnellverschlusses mit einem Sicherungsring - (17) in Gegendrehrichtung gesichert ist.12. Water pump or the like according to claim 1 and one of the following, characterized in that the pump block (1) is secured in the opposite direction of rotation after engaging the quick-release fastener with a locking ring (17). 13. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch aekennzeichnet. daß der Sicherungsring (17) Schnapplippen (17c) und Sicherungsriegel (17b) beinhaltet.13. Water pump or the like. According to claim 1 and one of the following, characterized. that the locking ring (17) includes snap lips (17c) and locking bolt (17b). 14. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß der Sicherungsring (17) auf dem Pumpeniagerelement (7) in Führungsnuten (5) axial geführt und in Ent-und Sicherungsposition einrastbar ist.14. Water pump or the like. According to claim 1 and one of the following, characterized in that the locking ring (17) on the pump bearing element (7) in the guide grooves (5) axially guided and can be locked in the unlocking and securing position. 15. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet , daß das vom Antriebsriemen ausgeübte Moment - (18), das über die Welle (8) auf das Pumpenlagerelement (7) wirkt, über eine axial versetzte Mehrfachlagerung aufgenommen wird.15. Water pump or the like. According to claim 1 and one of the following, characterized in that the moment exerted by the drive belt - (18), which acts on the pump bearing element (7) via the shaft (8), is received via an axially offset multiple bearing . 16. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß das Pumpenlagerelement (7) mit verschiedenen Pumpengehäusen (13) kombinierbar ist.16. Water pump or the like. According to claim 1 and one of the following, characterized in that the pump bearing element (7) with different pump housings (13) can be combined. 17. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß das Pumpenlagerelement (7) Dichtelemente - (10, bzw. 10a) gegen die Antriebswelle (8), sowie gegen die Pumpenaufnahme (11) und Lager zur Aufnahme der Welle (8) beinhaltet.17. Water pump or the like. According to claim 1 and one of the following, characterized in that the pump bearing element (7) sealing elements - (10, or 10a) against the drive shaft (8), and against the pump receptacle (11) and bearing for receiving the shaft (8) includes. 18. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß eine Radialdichtung zwischen Pumpenlagerelement (7) und Pumpenaufnahme (11) vorgesehen ist.18. Water pump or the like. According to claim 1 and one of the following, characterized in that a radial seal between the pump bearing element (7) and pump receptacle (11) is provided. 19. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch oekennzeichnet, daß das Pumpenlaufrad (9) aus Kunststoff besteht.19. Water pump or the like. According to claim 1 and one of the following, characterized in that the pump impeller (9) consists of plastic. 20. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet daß der Gehäusedeckei (11a) aus Kunststoff besteht.20. Water pump or the like. According to claim 1 and one of the following, characterized in that the housing cover (11a) consists of plastic. 21. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß das Pumpengehäuse (13) aus Kunststoff besteht.21. Water pump or the like. According to claim 1 and one of the following, characterized in that the pump housing (13) consists of plastic. 22. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß das Pumpenlagerelement (7) aus Kunststoff besteht.22. Water pump or the like. According to claim 1 and one of the following, characterized in that the pump bearing element (7) consists of plastic. 23. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennezeichnet , daß der Sicherungsring (17) aus Kunststoff besteht.23. Water pump or the like. According to claim 1 and one of the following, characterized in that the locking ring (17) consists of plastic. 24. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß die Elemente der Pumpe teilweise aus Metall, teilweise aus Kunststoff bestehen.24. Water pump or the like. According to claim 1 and one of the following, characterized in that the elements of the pump partly made of metal, partly made of plastic. 25. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet. daß als Dichtmittel Dichtringe (10,10a) vorgesehen sind.25. Water pump or the like. According to claim 1 and one of the following, characterized. that sealing rings (10, 10a) are provided as sealants. 26. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß als Werkstoff für das Pumpenlagerelement (7), den Gehäusedeckel (11 a), das Pumpengehäuse - (13), das Laufrad (9), sowie deren Einzelteile Polyamid vorgesehen.26. Water pump or the like. According to claim 1 and one of the following, characterized in that the material for the pump bearing element (7), the housing cover (11 a), the pump housing - (13), the impeller (9), and their individual parts Polyamide provided. 27. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet, daß für die Pumperatsils ein Poiyäthersulfon als Werkstoff vorgesehen ist.27. Water pump or the like. According to claim 1 and one of the following, characterized in that a Poiyäthersulfon is provided as the material for the Pumperatsils. 28. Wasserpumpe oder dergl. nach Anspruch 1 und einem der folgenden, dadurch gekennzeichnet. daß für die Teile der Pumpe ein Polyätherketon als Werkstoff vorgesehen ist.28. Water pump or the like. According to claim 1 and one of the following, characterized. that a polyether ketone is provided as the material for the parts of the pump.
EP86105711A 1985-07-09 1986-04-25 Water pump Withdrawn EP0208074A3 (en)

Applications Claiming Priority (2)

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DE19853524515 DE3524515A1 (en) 1985-07-09 1985-07-09 WATER PUMP OR THE LIKE
DE3524515 1985-07-09

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EP0208074A2 true EP0208074A2 (en) 1987-01-14
EP0208074A3 EP0208074A3 (en) 1988-01-20

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JP (1) JPS6213795A (en)
DE (1) DE3524515A1 (en)
ES (1) ES294994Y (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997032131A1 (en) * 1996-02-26 1997-09-04 Flowork Systems Inc. Coolant pump for automotive use___________________________________________________________________________________________________
AT408791B (en) * 1998-03-16 2002-03-25 Tcg Unitech Ag ROTARY PUMP
EP0943809A3 (en) * 1998-03-16 2000-07-19 TCG UNITECH Aktiengesellschaft Centrifugal pump
US6158958A (en) * 1998-03-16 2000-12-12 Tcg Unitech Aktiengesellschaft Centrifugal pump
EP0943809A2 (en) 1998-03-16 1999-09-22 TCG UNITECH Aktiengesellschaft Centrifugal pump
EP0995907A1 (en) * 1998-10-22 2000-04-26 TCG UNITECH Aktiengesellschaft Coolant water pump for an internal combustion engine
US6176204B1 (en) 1998-10-22 2001-01-23 Tcg Unitech Aktiengesellschaft Cooling water pump for an internal combustion engine
AT410574B (en) * 1998-10-22 2003-06-25 Tcg Unitech Ag COOLING WATER PUMP FOR AN INTERNAL COMBUSTION ENGINE
DE102004010799A1 (en) * 2004-03-05 2005-09-22 Fev Motorentechnik Gmbh Water pump for an internal combustion engine
FR2949139A1 (en) * 2009-08-13 2011-02-18 Snecma Air-duct seal/pressure seal/gasket for e.g. turbopropeller of plane, has shaft cooperating with immobilization unit to immobilize in rotation and axial translation of ring on shaft
CN102720662A (en) * 2012-07-13 2012-10-10 大大电子实业(深圳)有限公司 Low-noise cylinder housing
CN102720662B (en) * 2012-07-13 2015-05-06 大大电子实业(深圳)有限公司 Low-noise cylinder housing
WO2016193195A1 (en) * 2015-06-01 2016-12-08 Volkswagen Aktiengesellschaft Combination of a heat exchanger and a pump, heat exchange system, and motor vehicle
CN105201621A (en) * 2015-09-30 2015-12-30 河南飞龙(芜湖)汽车零部件有限公司 Clamping device used for automobile water pump cover

Also Published As

Publication number Publication date
EP0208074A3 (en) 1988-01-20
ES294994Y (en) 1987-07-01
JPS6213795A (en) 1987-01-22
ES294994U (en) 1986-10-16
DE3524515A1 (en) 1987-01-15
US5044883A (en) 1991-09-03

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