EP0054896A1 - Water pump for an internal-combustion engine - Google Patents

Water pump for an internal-combustion engine Download PDF

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Publication number
EP0054896A1
EP0054896A1 EP81110473A EP81110473A EP0054896A1 EP 0054896 A1 EP0054896 A1 EP 0054896A1 EP 81110473 A EP81110473 A EP 81110473A EP 81110473 A EP81110473 A EP 81110473A EP 0054896 A1 EP0054896 A1 EP 0054896A1
Authority
EP
European Patent Office
Prior art keywords
water pump
coupling element
pump impeller
drive shaft
control device
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Withdrawn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
EP81110473A
Other languages
German (de)
French (fr)
Inventor
Ulrich Schurr
Gerhard Wloka
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of EP0054896A1 publication Critical patent/EP0054896A1/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Withdrawn legal-status Critical Current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
    • 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/022—Units comprising pumps and their driving means containing a coupling a coupling allowing slip, e.g. torque converter

Definitions

  • the invention relates to a water pump for internal combustion engines, in which the delivery of the coolant can be regulated.
  • the invention seeks to remedy this.
  • the water pump is characterized in that a pump impeller is arranged in a housing on a drive shaft provided with a coupling element, and the pump impeller is a device for a has a non-positive connection with the coupling element.
  • the coupling element is designed as an electromagnet, the current supply of which can be controlled by a corresponding temperature control device known per se. If the frictional connection takes place, the coupling element is designed as a friction element and the pump impeller is not only arranged to run freely, but also axially displaceably on the drive shaft, and is connected to a temperature control device.
  • the temperature control device expediently consists of a working device with a plunger, e.g. B. a working piston, a membrane, a strain gauge and the like.
  • the tappet is mounted on the end of the pump impeller facing away from the coupling and expediently in an extension of the drive shaft. If the work equipment and temperature sensor are arranged in one housing, the liquid should be able to be flushed around on all sides.
  • a water pump is shown in the figures, in which in a housing 1 on a with a coupling element 4th provided drive shaft 2, a pump impeller 3 freewheeling and in the event that the coupling element 4 is designed as a friction element - is arranged axially displaceable.
  • the coupling element 4 is designed as a friction element, it can consist of the carrier part 5, which is rigidly connected to the drive shaft 2 by means of cotter pin 7 or the like, and the friction lining 6, which is connected to the carrier part 5 z. B. is positively connected.
  • the carrier part 5 can also be provided with an electromagnet (not shown).
  • the coupling element 4 is expediently arranged on the drive shaft 2 outside the housing 1.
  • a device 8 On the end face of the pump impeller 3 facing the coupling element 4 there is a device 8, e.g. B. a adapted to the geometry of the friction lining 6 friction surface for a positive connection with the coupling element 4.
  • a device 9 On the end facing away from the coupling element 4 of the pump impeller 3, the plunger 10 of a temperature control device 9 is mounted.
  • the temperature control device 9 consists of a working device connected to a temperature sensor.
  • the temperature sensor can be filled with expansion wax or the like
  • the working device consists of a working piston, a membrane with a plunger and the like.
  • the temperature control device 9 is arranged in the inlet for the pump impeller in such a way that liquid can be washed around it on all sides.
  • Figures 3 and 4 show the corresponding design of the housing 1.
  • the temperature control device is held by a kind of claw 11 and prevented by the support 12 from tilting.
  • Claw 11 and support 12 are connected to the housing 1 via webs 17.
  • 13 indicates the inlet for the coolant into the pump, 14 the outlet channel and 15 the outlet.
  • the housing 1 is divided.
  • the pump impeller 3 is closed (FIG. 1), the same is covered with a cover 18 provided with an inlet connection.
  • the housing is provided with a type of weir connector 19 over which the inlet connector of the cover 18 slides.
  • the wax or the like of the temperature sensor expands in accordance with the temperature of the cooling liquid and causes a pressure on the plunger 10, which in turn axially displaces the pump impeller 3 until it is non-positively connected to the drive shaft when a desired temperature of the cooling liquid is reached, i.e. . H. the pump conveys liquid. If the temperature of the coolant drops below the target temperature, the frictional connection can be loosened. H. the pump impeller is decoupled. In the case of friction surfaces with a geometrically different design than shown in FIG. 1, it may be necessary to support the decoupling by a spring (not shown).
  • the drive shaft 2 can be driven via drive belts or directly via the crankshaft of the engine.

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)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

In this water pump, the drive shaft (2) is provided with a clutch element (4). The pump impeller (3) is arranged free-wheeling on the shank of the shaft and is provided with a device (8) for making a friction coupling with the clutch element (4). <IMAGE>

Description

Gegenstand der Erfindung ist eine Wasserpumpe für Verbrennungsmotoren, bei der die Förderung des Kühlmittels geregelt werden kann.The invention relates to a water pump for internal combustion engines, in which the delivery of the coolant can be regulated.

Pumpen für flüssigkeitsgekühlte Verbrennungsmotoren sind bekannt. Ihr Pumpenlaufrad ist mit der Antriebswelle starr verbunden und stets angetrieben, wenn der Motor läuft. Solche Pumpen befinden sich üblicherweise im Hauptkreislauf für die Kühlflüssigkeit und sind dem Wärmetauscher (Kühler) nachgeschaltet. Die Wärmeabfuhr aus dem Motor über die Kühlflüssigkeit wird mittels Temperaturregler gesteuert, der mit einem Ventil verbunden ist, das ebenfalls im Hauptkreislauf des Kühlsystems angeordnet ist. Bei geschlossenem Ventil, daß heißt, wenn die Betriebstemperatur des Motors noch nicht erreicht ist, wird die Zirlculation der Kühlflüssigkeit über eine Kurzschlußleitung aufrecht erhalten, die zwischen Kühlereinlauf und Kühlerauslauf angeordnet ist. Ist Temperaturregler und Ventil als Baueinheit im Hauptkreislauf für die Flüssigkeit angeordnet, lassen sich oft zusätzliche Schlauchverbindungen nicht vermeiden. Weiterhin ist nachteilig, daß das Pumpenlaufrad stets über die Antriebswelle angetrieben wird unabhängig von der Notwendigkeit des Wärmetransportes zum Kühler des Kühlsystems.Pumps for liquid-cooled internal combustion engines are known. Your pump impeller is rigidly connected to the drive shaft and is always driven when the motor is running. Such pumps are usually located in the main circuit for the cooling liquid and are connected downstream of the heat exchanger (cooler). The heat dissipation from the engine via the cooling liquid is controlled by means of a temperature controller which is connected to a valve which is also arranged in the main circuit of the cooling system. When the valve is closed, that is, when the operating temperature of the engine has not yet been reached, the zirlculation of the coolant is maintained via a short-circuit line which is arranged between the radiator inlet and the radiator outlet. If the temperature controller and valve are arranged as a unit in the main circuit for the liquid, additional hose connections can often not be avoided. Another disadvantage is that the pump impeller is always driven via the drive shaft regardless of the need for heat transfer to the cooler of the cooling system.

Hier will die Erfindung Abhilfe schaffen. Die Wasserpumpe ist dadurch gekennzeichnet, daß in einem Gehäuse auf einer mit einem Kupplungselement versehenen Antriebswelle ein Pumpenlaufrad freilaufend angeordnet ist, und das Pumpenlaufrad eine Einrichtung für eine kraftschlüssige Verbindung mit dem Kupplungselement aufweist.The invention seeks to remedy this. The water pump is characterized in that a pump impeller is arranged in a housing on a drive shaft provided with a coupling element, and the pump impeller is a device for a has a non-positive connection with the coupling element.

Der Kraftschluß kann durch elektromagnetische Kräfte oder Reibung erfolgen. Im ersten Fall ist das Kupplungselement als Elektromagnet ausgebildet, dessen Stromzufuhr durch eine entsprechende, an sich bekannte Temperaturregeleinrichtung gesteuert werden kann. Erfolgt der Kraftschluß durch Reibung, ist das Kupplungselement als Reibelement ausgebildet und das Pumpenlaufrad nicht nur freilaufend, sondern auch axial verschiebbar auf der Antriebswelle angeordne,t und mit einer Temperaturregeleinrichtung verbunden. Die Temperaturregeleinrichtung besteht in diesem Fall zweckmäßig aus einer mit einem Temperaturfühler verbundenen Arbeitseinrichtung mit Stößel, z. B. einem Arbeitskolben, einer Membran, einem Dehnstreifen und dergleichen. Der Stößel ist auf der der Kupplung abgewandten Stirnseite des Pumpenlaufrades und zwar zweckmäßig in Verlängerung der Antriebswelle gelagert. Ist Arbeitseinrichtung und Temperaturfühler in einem Gehäuse angeordnet, sollte dies allseits von der Flüssigkeit umspülbar sein.The adhesion can be done by electromagnetic forces or friction. In the first case, the coupling element is designed as an electromagnet, the current supply of which can be controlled by a corresponding temperature control device known per se. If the frictional connection takes place, the coupling element is designed as a friction element and the pump impeller is not only arranged to run freely, but also axially displaceably on the drive shaft, and is connected to a temperature control device. In this case, the temperature control device expediently consists of a working device with a plunger, e.g. B. a working piston, a membrane, a strain gauge and the like. The tappet is mounted on the end of the pump impeller facing away from the coupling and expediently in an extension of the drive shaft. If the work equipment and temperature sensor are arranged in one housing, the liquid should be able to be flushed around on all sides.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnung näher erläutert. Es zeigt

  • Figur 1 einen Längsschnitt durch die erfindungsgemäße Wasserpumpe mit geschlossenem Pumpenlaufrad
  • Figur 2 einen Längsschnitt durch die Wasserpumpe mit offenem Pumpenlaufrad
  • Figur 3 einen Schnitt III - III der Figur 1 und
  • Figur 4 einen Schnitt IV - IV der Figur 1
In the following, the invention is explained in more detail with reference to a drawing that shows only one embodiment. It shows
  • 1 shows a longitudinal section through the water pump according to the invention with the pump impeller closed
  • Figure 2 shows a longitudinal section through the water pump with an open impeller
  • Figure 3 shows a section III - III of Figure 1 and
  • 4 shows a section IV - IV of FIG

In den Figuren ist eine Wasserpumpe dargestellt, bei der in einem Gehäuse 1 auf einer mit einem Kupplungselement 4 versehenen Antriebswelle 2 ein Pumpenlaufrad 3 freilaufend und für den Fall, daß das Kupplungselement 4 als Reibelement ausgebildet ist - axial verschiebbar angeordnet ist. Ist das Kupplungselement 4 als Reibelement ausgebildet, kann es aus dem Trägerteil 5, der mittels Splint 7 oder dergleichen mit der Antriebswelle 2 starr verbunden ist, und den Reibbelag 6 bestehen, der mit dem Trägerteil 5 z. B. formschlüssig verbunden ist. Statt des Reibbelages 6 kann das Trägerteil 5 auch mit einem Elektromagnet (nicht dargestellt) versehen sein. In diesem Fall ist das Kupplungselement 4 zweckmäßig außerhalb des Gehäuses 1 auf der Antriebswelle 2 angeordnet. Auf der dem Kupplungselement 4 zugewandten Stirnseite des Pumpenlaufrades 3 befindet sich eine Einrichtung 8, z. B. eine an die Geometrie des Reibbelages 6 angepaßte Reibfläche, für eine kraftschlüssige Verbindung mit dem Kupplungselement 4. Auf der dem Kupplungselement 4 abgewandten Stirnseite des Pumpenlaufrades 3 ist der Stößel 10 einer Temperaturregeleinrichtung 9 gelagert. Die Temperaturregeleinrichtung 9 besteht aus einer mit einem Temperaturfühler verbundenen Arbeitseinrichtung. Der Temperaturfühler kann mit Dehnwachs oder dergleichen gefüllt sein, die Arbeitseinrichtung aus einem Arbeitskolben, einer Membran mit Stößel und dergleichen bestehen. Die Temperaturregeleinrichtung 9 ist so im Zulauf für das Pumpenlaufrad angeordnet, daß sie allseits von Flüssigkeit umspült werden kann. Die Figuren 3 und 4 zeigen die dementsprechende Ausgestaltung des Gehäuses 1. Die Temperaturregeleinrichtung wird durch eine Art Klaue 11 gehalten und durch die Unterstützung 12 am Kippen gehindert. Klaue 11 und Unterstützung 12 sind über Stege 17 mit dem Gehäuse 1 verbunden. 13 deutet den Einlauf für die Kühlflüssigkeit in die Pumpe an, 14 den Auslaufkanal und 15 den Auslauf. Bei 16 ist das Gehäuse 1 geteilt. Bei geschlossenem Pumpenlaufrad 3 (Figur 1) ist dasselbe mit einem mit Einlaufstutzen versehenen Deckel 18 abgedeckt. Bei dieser Ausführung ist das Gehäuse mit einer Art Wehrstutzen 19 versehen, über den sich der Einlaufstutzen des Deckels 18 schiebt.A water pump is shown in the figures, in which in a housing 1 on a with a coupling element 4th provided drive shaft 2, a pump impeller 3 freewheeling and in the event that the coupling element 4 is designed as a friction element - is arranged axially displaceable. If the coupling element 4 is designed as a friction element, it can consist of the carrier part 5, which is rigidly connected to the drive shaft 2 by means of cotter pin 7 or the like, and the friction lining 6, which is connected to the carrier part 5 z. B. is positively connected. Instead of the friction lining 6, the carrier part 5 can also be provided with an electromagnet (not shown). In this case, the coupling element 4 is expediently arranged on the drive shaft 2 outside the housing 1. On the end face of the pump impeller 3 facing the coupling element 4 there is a device 8, e.g. B. a adapted to the geometry of the friction lining 6 friction surface for a positive connection with the coupling element 4. On the end facing away from the coupling element 4 of the pump impeller 3, the plunger 10 of a temperature control device 9 is mounted. The temperature control device 9 consists of a working device connected to a temperature sensor. The temperature sensor can be filled with expansion wax or the like, the working device consists of a working piston, a membrane with a plunger and the like. The temperature control device 9 is arranged in the inlet for the pump impeller in such a way that liquid can be washed around it on all sides. Figures 3 and 4 show the corresponding design of the housing 1. The temperature control device is held by a kind of claw 11 and prevented by the support 12 from tilting. Claw 11 and support 12 are connected to the housing 1 via webs 17. 13 indicates the inlet for the coolant into the pump, 14 the outlet channel and 15 the outlet. At 16, the housing 1 is divided. When the pump impeller 3 is closed (FIG. 1), the same is covered with a cover 18 provided with an inlet connection. In this embodiment, the housing is provided with a type of weir connector 19 over which the inlet connector of the cover 18 slides.

Um Leckströme weitgehend zu vermeiden ist es zweckmäßig, den freien Querschnitt zwischen Gehäuse und Pumpenlaufrad auf der Saugseite der Pumpe möglichst gering zu halten. Bei Betrieb des Motors dehnt sich das Wachs oder dergleichen des Temperaturfühlers entsprechend der Temperatur der Kühlflüssigkeit aus und bewirkt einen Druck auf den Stößel 10, der seinerseits das Pumpenlaufrad 3 axial verschiebt bis dieses bei Erreichen einer Solltemperatur der Kühlflüssigkeit mit der Antriebswelle kraftschlüssig verbunden ist, d. h. die Pumpe Flüssigkeit fördert. Sinkt die Temperatur der Kühlflüssigkeit unter die Solltemperatur, lößt sich der Kraftschluß, d. h. das Pumpenlaufrad wird entkoppelt. Bei geometrisch anders ausgeführten Reibflächen als in Figur 1 dargestellt, kann es erforderlich werden, die Entkopplung durch eine Feder (nicht dargestellt) zu unterstützen.In order to largely avoid leakage currents, it is advisable to keep the free cross section between the housing and the pump impeller on the suction side of the pump as small as possible. During operation of the motor, the wax or the like of the temperature sensor expands in accordance with the temperature of the cooling liquid and causes a pressure on the plunger 10, which in turn axially displaces the pump impeller 3 until it is non-positively connected to the drive shaft when a desired temperature of the cooling liquid is reached, i.e. . H. the pump conveys liquid. If the temperature of the coolant drops below the target temperature, the frictional connection can be loosened. H. the pump impeller is decoupled. In the case of friction surfaces with a geometrically different design than shown in FIG. 1, it may be necessary to support the decoupling by a spring (not shown).

Die Antriebswelle 2 kann über Treibriemen oder direkt über die Kurbelwelle des Motors angetrieben werden.The drive shaft 2 can be driven via drive belts or directly via the crankshaft of the engine.

Claims (5)

1. Wasserpumpe für Verbrennungsmotoren, dadurch gekennzeichnet, daß in einem Gehäuse (1) auf einer mit einem Kupplungselement (4) versehenen Antriebswelle (2) ein Pumpenlaufrad (3) freilaufend angeordnet ist, und das Pumpenlaufrad eine Einrichtung (8) für eine kraftschlüssige Verbindung mit dem Kupplungselement (4) aufweist.1. Water pump for internal combustion engines, characterized in that in a housing (1) on a with a coupling element (4) provided drive shaft (2) a pump impeller (3) is arranged freely, and the pump impeller means (8) for a positive connection with the coupling element (4). 2. Wasserpumpe nach Anspruch 1, dadurch gekennzeichnet, daß das Kupplungselement (4) als Reibelement ausgebildet ist, das Pumpenlaufrad (3) freilaufend und axial verschiebbar auf der Antriebswelle (2) angeordnet und mit einer Temperaturregeleinrichtung (9) verbunden ist.2. Water pump according to claim 1, characterized in that the coupling element (4) is designed as a friction element, the pump impeller (3) is arranged freely and axially displaceably on the drive shaft (2) and is connected to a temperature control device (9). 3. Wasserpumpe nach Anspruch 2, dadurch gekennzeichnet, daß die Temperaturregeleinrichtung (9) aus einer mit einem Temperaturfühler verbundenen Arbeitseinrichtung mit Stößel besteht, wobei der Stößel (10) auf der dem Kupplungselement (4) abgewandten Stirnseite des Pumpenlaufrades (3) gelagert ist.3. Water pump according to claim 2, characterized in that the temperature control device (9) consists of a working device connected to a temperature sensor with a plunger, the plunger (10) being mounted on the end face of the pump impeller (3) facing away from the coupling element (4). 4. Wasserpumpe nach Anspruch 3, dadurch gekennzeichnet, daß Arbeitseinrichtung und Temperaturfühler in einem allseits von Kühlflüssigkeit umspülten Gehäuse angeordnet ist.4. Water pump according to claim 3, characterized in that the working device and temperature sensor is arranged in a housing around which cooling liquid flows. 5. Wasserpumpe nach Anspruch 1, dadurch gekennzeichnet, daß das Kupplungselement (4) als Elektromagnet ausgebildet und mit einer Temperaturregeleinrichtung verbinden ist.5. Water pump according to claim 1, characterized in that the coupling element (4) is designed as an electromagnet and is connected to a temperature control device.
EP81110473A 1980-12-23 1981-12-16 Water pump for an internal-combustion engine Withdrawn EP0054896A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3048611 1980-12-23
DE19803048611 DE3048611A1 (en) 1980-12-23 1980-12-23 "WATER PUMP FOR COMBUSTION ENGINES"

Publications (1)

Publication Number Publication Date
EP0054896A1 true EP0054896A1 (en) 1982-06-30

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ID=6120040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110473A Withdrawn EP0054896A1 (en) 1980-12-23 1981-12-16 Water pump for an internal-combustion engine

Country Status (4)

Country Link
EP (1) EP0054896A1 (en)
JP (1) JPS57129294A (en)
BR (1) BR8108332A (en)
DE (1) DE3048611A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325627A1 (en) * 1993-07-30 1995-02-02 Behr Gmbh & Co Drive device for a water pump
GB2288457A (en) * 1994-04-11 1995-10-18 Bosch Siemens Hausgeraete Condensate removal from an appliance
WO2000060240A1 (en) * 1999-03-30 2000-10-12 Volkswagen Aktiengesellschaft Device for the temperature-dependent joining of components
GB2391048A (en) * 2002-07-18 2004-01-28 Visteon Global Tech Inc An engine coolant pump having a clutch in a pumping chamber
GB2408775A (en) * 2003-12-03 2005-06-08 Echlin Do Brasil Ind E Com Ltd Coolant pump with temperature actuated clutch
DE102008015707B4 (en) * 2007-03-29 2010-09-23 Toyota Jidosha Kabushiki Kaisha, Toyota-shi Water pump and method for its control
WO2012084030A1 (en) * 2010-12-22 2012-06-28 Pierburg Pump Technology Gmbh Mechanical coolant pump

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5997295U (en) * 1982-12-21 1984-07-02 アイシン精機株式会社 water pump impeller
JPS61142196U (en) * 1985-02-25 1986-09-02
DE102004008390B4 (en) * 2004-02-20 2012-03-15 Bayerische Motoren Werke Aktiengesellschaft pump
DE102011087141A1 (en) * 2011-11-25 2013-05-29 Behr Thermot-Tronik Gmbh Pump e.g. coolant pump, for use in thermal management module of internal combustion engine of motor car to heat wax extension element, has wax extension element provided in sucking-in region of impeller to control capacity of pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2376939A (en) * 1942-09-01 1945-05-29 Ricart Wifredo Apparatus for the regulation of cooling in internal-combustion engines
DE1476365A1 (en) * 1964-11-13 1969-09-25 Ford Werke Ag Temperature controlled pump
DE2318103A1 (en) * 1973-04-11 1974-10-24 Luk Lamellen & Kupplungsbau DRIVE DEVICE FOR A WATER PUMP
DE2834199A1 (en) * 1978-08-04 1980-02-21 Daimler Benz Ag Engine water pump thermostatic clutch - has housing wall moved by expanding material engaging positively with clutch half
DE2924394A1 (en) * 1979-06-16 1980-12-18 Richter Kg Armaturen Und Pumpe Central inlet centrifugal pump - has magnetic drive via housing wall with fixed impeller hub and axial bearing preventing wall deformation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2376939A (en) * 1942-09-01 1945-05-29 Ricart Wifredo Apparatus for the regulation of cooling in internal-combustion engines
DE1476365A1 (en) * 1964-11-13 1969-09-25 Ford Werke Ag Temperature controlled pump
DE2318103A1 (en) * 1973-04-11 1974-10-24 Luk Lamellen & Kupplungsbau DRIVE DEVICE FOR A WATER PUMP
DE2834199A1 (en) * 1978-08-04 1980-02-21 Daimler Benz Ag Engine water pump thermostatic clutch - has housing wall moved by expanding material engaging positively with clutch half
DE2924394A1 (en) * 1979-06-16 1980-12-18 Richter Kg Armaturen Und Pumpe Central inlet centrifugal pump - has magnetic drive via housing wall with fixed impeller hub and axial bearing preventing wall deformation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325627A1 (en) * 1993-07-30 1995-02-02 Behr Gmbh & Co Drive device for a water pump
GB2288457A (en) * 1994-04-11 1995-10-18 Bosch Siemens Hausgeraete Condensate removal from an appliance
GB2288457B (en) * 1994-04-11 1998-04-01 Bosch Siemens Hausgeraete Condensate removal from an appliance
WO2000060240A1 (en) * 1999-03-30 2000-10-12 Volkswagen Aktiengesellschaft Device for the temperature-dependent joining of components
GB2391048A (en) * 2002-07-18 2004-01-28 Visteon Global Tech Inc An engine coolant pump having a clutch in a pumping chamber
GB2391048B (en) * 2002-07-18 2005-07-27 Visteon Global Tech Inc Motor vehicle engine coolant pump
GB2408775A (en) * 2003-12-03 2005-06-08 Echlin Do Brasil Ind E Com Ltd Coolant pump with temperature actuated clutch
WO2005054640A1 (en) * 2003-12-03 2005-06-16 Echlin Do Brasil Industria E Comercio Ltda Cooling system
DE102008015707B4 (en) * 2007-03-29 2010-09-23 Toyota Jidosha Kabushiki Kaisha, Toyota-shi Water pump and method for its control
WO2012084030A1 (en) * 2010-12-22 2012-06-28 Pierburg Pump Technology Gmbh Mechanical coolant pump

Also Published As

Publication number Publication date
BR8108332A (en) 1982-10-05
DE3048611A1 (en) 1982-07-29
JPS57129294A (en) 1982-08-11

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