EP0915237B1 - Cooling system for an internal combustion engine - Google Patents
Cooling system for an internal combustion engine Download PDFInfo
- Publication number
- EP0915237B1 EP0915237B1 EP98890316A EP98890316A EP0915237B1 EP 0915237 B1 EP0915237 B1 EP 0915237B1 EP 98890316 A EP98890316 A EP 98890316A EP 98890316 A EP98890316 A EP 98890316A EP 0915237 B1 EP0915237 B1 EP 0915237B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermostat
- cooling system
- return line
- water pump
- housing
- 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.)
- Expired - Lifetime
Links
Images
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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
-
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
- F04D15/0263—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being temperature, ingress of humidity or leakage
-
- 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
- F01P2070/00—Details
Definitions
- the present invention relates to a cooling system for motor vehicles according to the Preamble of claim 1.
- Such a cooling system should have the simplest possible structure and be compact.
- the simple one Structure enables inexpensive production and the largest possible Reliability.
- the compact structure is necessary because the installation space for Ancillaries are subject to an increasing number of restrictions.
- On such a cooling system consists in its entirety of a cooling water pump, which is usually designed as a radial pump and the cooling water to the Engine block and / or to the cylinder head of an internal combustion engine.
- a bypass line leads to the engine block or cylinder head Thermostat, while another line via a cooler also to the Thermostat is performed.
- a heating heat exchanger is provided which uses the heat of the cooling water to flow into the interior of the To heat the air to be injected into the vehicle.
- a thermostat In conventional cooling systems, a thermostat is occasionally in the range of Arranged cooler. Locks below a predetermined temperature Expansion element from the cooling water passage through the radiator, so that Cooling water only led through the bypass line in the so-called small circuit becomes. This enables the engine to warm up quickly after a cold start. When the predetermined temperature is reached, the expansion element changes its shape Length and clears the way of the cooling water through the radiator, making a proper engine cooling is achieved.
- a Thermostat arranged in the area of the cooling water pump.
- the suction side and The pressure side housing of the cooling water pump consists of two separate ones Components, and at least a third component is provided for the thermostat.
- Such cooling systems are satisfactory in their function, the manufacture and the assembly is relatively complex.
- WO 96/03574 describes a cooling system for an internal combustion engine Combustion known, in which the cooling water pump and the thermostat are arranged relatively compact. The flow to the thermostat is via a substantially frustoconical housing, and the thermostat is in the flowed essentially along its axis. It has been found that the response time in such a construction is relatively long. This means, that the thermostat is closed during a cold start to keep the cooling water on Pass the cooler. When the engine is warm, the thermostat should open to ensure adequate cooling. With the conventional Solution, the cooling water can reach its target temperature under certain operating conditions Reach relatively quickly and exceed for a certain period of time until the thermostat opens. This can lead to undesirable overheating come.
- the object of the present invention is the cooling system described above to develop in such a way that production is as simple and inexpensive as possible is possible and that a particularly simple structure is achieved.
- the thermostat should respond quickly.
- this object is characterized by the features of the Part of claim 1 solved.
- Cooling system can reduce the number of components and it can be a particularly compact and easy to manufacture cooling water pump thermostat unit being represented.
- one pressure side housing of the cooling water pump partly from the component which forms the suction side housing and the other part of the bearing part is formed, and in particular if the sealing plane between the suction side housing and the bearing part, the pressure side housing essentially divides along a middle plane.
- a connecting part for a heating return provided on a flange surface on Thermostat housing is attached, which is substantially parallel to the axial direction of the thermostat is oriented.
- the thermostat is used by the cooling medium Direct flow from the heating return.
- one Flow deflection bracket is formed in one piece with a fastening part which is a connector for a heating return in two different orientations is attachable.
- a position of the connector is particularly special suitable for longitudinal installation of the motor while the other position is suitable for transverse installation.
- suction-side housing as part of the engine block or cylinder head one Internal combustion engine is formed. In this way, another component omitted, and it can reduce the effort in editing, because for example, the cylinder head in any case for various other machining operations must be clamped.
- the water pump thermostat unit of Fig. 1 consists of a first Component 1, which integrally forms the suction-side housing 1a of the cooling water pump 2 and forms the thermostat housing 1b.
- a Seal 3 of the bearing part 4 for the cooling water pump 2 flanged On the first component 1 is a Seal 3 of the bearing part 4 for the cooling water pump 2 flanged, the same time the bracket 4a for the thermostat 5 forms.
- a connection 6 on the bearing part 4 is provided for the return of the cooling water from the cooler, not shown.
- a pump impeller 7 is placed on a pump shaft 8 in order to move from it to be rotated.
- the pressure-side space of the cooling water pump 2 is partly as a recess 9a in the bearing part 4 and the other part formed as a recess 9b in the first component 1.
- the thermostat 5 has an expansion element 10, which has a bracket 11 is stored, which is held by brackets 21.
- a first spring 12 presses in first poppet valve 13 in the closed position.
- a second spring 14 is loaded a second poppet valve 15 in the closing direction.
- the springs 12 and 14 are as Compression coil springs formed.
- the poppet valve 13 controls an opening through the cooling water from the cooler, not shown, to the cooling water pump 2 is returned.
- the poppet valve 15 controls the bypass connection 16, via the Cooling water returned directly from the engine block or cylinder head, not shown becomes.
- a connecting part 18 is on a lateral flange 17 of the component 1 provided for the return from a heating heat exchanger, not shown.
- a flow deflection bracket 19 is formed, which the Thermostat 5 encloses.
- the bracket 19 has the task of cooling water flows through the poppet valve 15 so that it deflects the thermostat 5 flows safely around. This ensures that the thermostat increases the temperature of the returning cooling water quickly and reliably reacts and the poppet valve when a predetermined temperature is exceeded 15 closes.
- the formation of the flow deflection bracket 19 made of plastic a significant simplification of the manufacturing process for the Component 1 compared to a rib molded onto this. This can cause a substantial cost savings can be achieved.
- a seal 20 is provided to the connection part 18 against the Seal flange 17.
- the flow deflection bracket 19 can be formed in one piece with the connecting part 18 can be provided in an alternative embodiment be that the flow deflection bracket 19 is formed on its own fastening part is that with the connecting part 18 in two different positions can be connected, for example via a dovetail guide. This is it is possible, using the same components, the connecting part 18 in attach different positions, d. H. in a position in which the connecting part 18 to the left in FIG. 2, as shown, or alternatively in a position in which it points to the right.
- the present invention enables an assembly consisting of a cooling water pump and thermostat, with few components and low manufacturing costs to realize.
Description
Die vorliegende Erfindung betrifft ein Kühlsystem für Kraftfahrzeuge gemäß dem
Oberbegriff von Patentanspruch 1.The present invention relates to a cooling system for motor vehicles according to the
Preamble of
An das Kühlsystem von Brennkraftmaschinen für Kraftfahrzeuge werden verschiedene Ansprüche gestellt. Insbesondere soll ein solches Kühlsystem einen möglichst einfachen Aufbau besitzen und kompakt ausgeführt sein. Der einfache Aufbau ermöglicht eine kostengünstige Herstellung und eine möglichst große Ausfallssicherheit. Der kompakte Aufbau ist notwendig, da der Einbauraum für Nebenaggregate einer zunehmenden Anzahl von Beschränkungen unterliegt. Ein solches Kühlsystem besteht in seiner Gesamtheit aus einer Kühlwasserpumpe, die üblicherweise als Radialpumpe ausgebildet ist und die Kühlwasser zu dem Motorblock und/oder zu dem Zylinderkopf einer Brennkraftmaschine zuführt. Von dem Motorblock bzw. Zylinderkopf führt eine Bypassleitung direkt zu einem Thermostat, während eine weitere Leitung über einen Kühler ebenfalls zu dem Thermostat geführt wird. Darüber hinaus ist ein Heizungswärmetauscher vorgesehen, der die Wärme des Kühlwassers dazu nützt, die in den Innenraum des Fahrzeugs einzublasende Luft zu erwärmen.Various are added to the cooling system of internal combustion engines for motor vehicles Claims. In particular, such a cooling system should have the simplest possible structure and be compact. The simple one Structure enables inexpensive production and the largest possible Reliability. The compact structure is necessary because the installation space for Ancillaries are subject to an increasing number of restrictions. On such a cooling system consists in its entirety of a cooling water pump, which is usually designed as a radial pump and the cooling water to the Engine block and / or to the cylinder head of an internal combustion engine. Of a bypass line leads to the engine block or cylinder head Thermostat, while another line via a cooler also to the Thermostat is performed. In addition, a heating heat exchanger is provided which uses the heat of the cooling water to flow into the interior of the To heat the air to be injected into the vehicle.
Bei herkömmlichen Kühlsystemen ist ein Thermostat fallweise im Bereich des Kühlers angeordnet. Unterhalb einer vorbestimmten Temperatur sperrt dabei ein Dehnstoffelement den Kühlwasserdurchtritt durch den Kühler ab, so dass das Kühlwasser nur über die Bypassleitung im sogenannten kleinen Kreislauf geführt wird. Dies ermöglicht eine schnelle Erwärmung des Motors nach dem Kaltstart. Bei Erreichen der vorbestimmten Temperatur ändert das Dehnstoffelement seine Länge und gibt den Weg des Kühlwassers durch den Kühler frei, so dass eine ordnungsgemäße Kühlung des Motors erreicht wird.In conventional cooling systems, a thermostat is occasionally in the range of Arranged cooler. Locks below a predetermined temperature Expansion element from the cooling water passage through the radiator, so that Cooling water only led through the bypass line in the so-called small circuit becomes. This enables the engine to warm up quickly after a cold start. When the predetermined temperature is reached, the expansion element changes its shape Length and clears the way of the cooling water through the radiator, making a proper engine cooling is achieved.
Bei einer anderen bekannten Ausführungsvariante eines Kühlsystems ist ein Thermostat im Bereich der Kühlwasserpumpe angeordnet. Das saugseitige und druckseitige Gehäuse der Kühlwasserpumpe besteht dabei aus zwei getrennten Bauteilen, und für den Thermostat ist mindestens ein dritter Bauteil vorgesehen. Solche Kühlsysteme sind von ihrer Funktion her zufriedenstellend, die Herstellung und die Montage ist jedoch relativ aufwendig.In another known embodiment variant of a cooling system, a Thermostat arranged in the area of the cooling water pump. The suction side and The pressure side housing of the cooling water pump consists of two separate ones Components, and at least a third component is provided for the thermostat. Such cooling systems are satisfactory in their function, the manufacture and the assembly is relatively complex.
Aus der WO 96/03574 ist ein Kühlsystem für eine Brennkraftmaschine mit innerer Verbrennung bekannt, bei dem die Kühlwasserpumpe und das Thermostat relativ kompakt angeordnet sind. Die Anströmung des Thermostats erfolgt über ein im wesentlichen kegelstumpfförmiges Gehäuse, und der Thermostat wird im wesentlichen entlang seiner Achse angeströmt. Es hat sich herausgestellt, dass die Ansprechdauer bei einer solchen Bauweise relativ lang ist. Dies bedeutet, dass bei einem Kaltstart der Thermostat geschlossen ist, um das Kühlwasser am Kühler vorbeizuführen. Bei betriebswarmen Motor sollte jedoch der Thermostat öffnen, um eine ausreichende Kühlung zu gewährleisten. Bei der herkömmlichen Lösung kann unter bestimmten Betriebsbedingungen das Kühlwasser seine Solltemperatur relativ rasch erreichen und für einen bestimmten Zeitraum überschreiten bis der Thermostat öffnet. Dadurch kann es zu unerwünschten Überhitzungen kommen.WO 96/03574 describes a cooling system for an internal combustion engine Combustion known, in which the cooling water pump and the thermostat are arranged relatively compact. The flow to the thermostat is via a substantially frustoconical housing, and the thermostat is in the flowed essentially along its axis. It has been found that the response time in such a construction is relatively long. This means, that the thermostat is closed during a cold start to keep the cooling water on Pass the cooler. When the engine is warm, the thermostat should open to ensure adequate cooling. With the conventional Solution, the cooling water can reach its target temperature under certain operating conditions Reach relatively quickly and exceed for a certain period of time until the thermostat opens. This can lead to undesirable overheating come.
Aus der DE 35 10 148 A ist eine Brennkraftmaschine mit einem Kühlkreislauf bekannt, der durch einen Thermostat geregelt ist. Ein schnelles Ansprechverhalten des Thermostats kann durch die bekannte Lösung jedoch nicht gewährleistet werden. Weiterhin ist keine Lösung für den Anschluss des Heizungsrücklaufs angegeben. Die US 4, 938, 185 A zeigt einen Anschluss für den Heizungsrücklauf, wobei jedoch ein beschleunigtes Ansprechverhalten ebenfalls nicht erreicht wird.An internal combustion engine with a cooling circuit is known from DE 35 10 148 A, which is regulated by a thermostat. A quick response the thermostat can not be guaranteed by the known solution become. Furthermore, no solution for connecting the heating return is given. The US 4, 938, 185 A shows a connection for the heating return, however, an accelerated response is also not achieved.
Aufgabe der vorliegenden Erfindung ist es, das eingangs beschriebene Kühlsystem so weiterzubilden, dass eine möglichst einfache und kostengünstige Herstellung möglich ist und dass ein besonders einfacher Aufbau erreicht wird. Insbesondere soll ein schnelles Ansprechverhalten des Thermostates gesichert sein.The object of the present invention is the cooling system described above to develop in such a way that production is as simple and inexpensive as possible is possible and that a particularly simple structure is achieved. In particular the thermostat should respond quickly.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des kennzeichnenden
Teils von Patentanspruch 1 gelöst.According to the invention, this object is characterized by the features of the
Part of
Besonders günstig ist es, wenn eine Halterung für den Thermostat einstückig mit einem Lagerteil für die Kühlwasserpumpe ausgebildet ist. Durch die erfindungsgemäße Ausbildung des Kühlsystems kann die Anzahl der Bauteile verringert werden und es kann eine besonders kompakte und einfach herzustellende Kühlwasserpumpen-Thermostat-Einheit dargestellt werden.It is particularly favorable if a holder for the thermostat is made in one piece a bearing part for the cooling water pump is formed. By the invention Designing the cooling system can reduce the number of components and it can be a particularly compact and easy to manufacture cooling water pump thermostat unit being represented.
Gusstechnisch und strömungstechnisch besonders günstig ist es, wenn ein druckseitiges Gehäuse der Kühlwasserpumpe zum einen Teil von dem Bauteil gebildet wird, der das saugseitige Gehäuse bildet und zum anderen Teil vom Lagerteil gebildet wird, und insbesondere, wenn die Dichtebene zwischen dem saugseitigen Gehäuse und dem Lagerteil das druckseitige Gehäuse im wesentlichen entlang einer mittleren Ebene teilt.In terms of casting technology and flow technology, it is particularly favorable if one pressure side housing of the cooling water pump partly from the component is formed, which forms the suction side housing and the other part of the bearing part is formed, and in particular if the sealing plane between the suction side housing and the bearing part, the pressure side housing essentially divides along a middle plane.
In einer besonders bevorzugten Ausführungsvariante der Erfindung ist ein Anschlussteil für einen Heizungsrücklauf vorgesehen, der an einer Flanschfläche am Thermostatgehäuse befestigt ist, die im wesentlichen parallel zur Axialrichtung des Thermostats orientiert ist. Der Thermostat wird dabei von dem Kühlmedium aus dem Heizungsrücklauf direkt angeströmt. In a particularly preferred embodiment variant of the invention there is a connecting part for a heating return provided on a flange surface on Thermostat housing is attached, which is substantially parallel to the axial direction of the thermostat is oriented. The thermostat is used by the cooling medium Direct flow from the heating return.
Um mit einer möglichst großen Anzahl von Gleichteilen verschiedene Einbausituationen eines Motors bewältigen zu können, ist es weiters günstig, wenn ein Strömungsumlenkbügel einstückig mit einem Befestigungsteil ausgebildet ist, an dem ein Anschlussteil für einen Heizungsrücklauf in zwei unterschiedlichen Orientierungen befestigbar ist. Eine Stellung des Anschlussteils ist dabei etwa besonders für einen Längseinbau des Motors geeignet, während die andere Stellung für einen Quereinbau geeignet ist.In order to have different installation situations with the largest possible number of identical parts to cope with an engine, it is also favorable if one Flow deflection bracket is formed in one piece with a fastening part which is a connector for a heating return in two different orientations is attachable. A position of the connector is particularly special suitable for longitudinal installation of the motor while the other position is suitable for transverse installation.
Eine weitere bedeutende Vereinfachung kann dadurch erreicht werden, wenn das saugseitige Gehäuse als Teil des Motorblocks oder des Zylinderkopfs einer Brennkraftmaschine ausgebildet ist. Auf diese Weise kann ein weiterer Bauteil entfallen, und es kann der Aufwand bei der Bearbeitung verringert werden, da beispielsweise der Zylinderkopf in jedem Fall für verschiedene andere Bearbeitungsvorgänge eingespannt werden muss.A further significant simplification can be achieved if the suction-side housing as part of the engine block or cylinder head one Internal combustion engine is formed. In this way, another component omitted, and it can reduce the effort in editing, because for example, the cylinder head in any case for various other machining operations must be clamped.
In der Folge wird die vorliegende Erfindung anhand des in den Figuren dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:
- Fig. 1
- eine axonometrische Explosionsdarstellung des wesentlichen Teils eines erfindungsgemäßen Kühlsystems und
- Fig. 2
- einen Schnitt durch die Vorrichtung von Fig. 1.
- Fig. 1
- an axonometric exploded view of the essential part of a cooling system according to the invention and
- Fig. 2
- a section through the device of Fig. 1st
Die Wasserpumpen-Thermostat-Einheit der Fig. 1 besteht aus einem ersten
Bauteil 1, der einstückig das saugseitige Gehäuse 1a der Kühlwasserpumpe 2
und das Thermostatgehäuse 1b bildet. An dem ersten Bauteil 1 ist über eine
Dichtung 3 der Lagerteil 4 für die Kühlwasserpumpe 2 angeflanscht, der gleichzeitig
die Halterung 4a für den Thermostat 5 bildet. Ein Anschluss 6 am Lagerteil
4 ist für den Rücklauf des Kühlwassers vom nicht dargestellten Kühler vorgesehen.
Ein Pumpenlaufrad 7 ist auf einer Pumpenwelle 8 aufgesetzt, um von dieser
in Drehbewegung versetzt zu werden. Der druckseitige Raum der Kühlwasserpumpe
2 ist teilweise als Ausnehmung 9a im Lagerteil 4 und zum anderen Teil
als Ausnehmung 9b im ersten Bauteil 1 ausgebildet.The water pump thermostat unit of Fig. 1 consists of a
Der Thermostat 5 besitzt ein Dehnstoffelement 10, das über eine Halterung 11
gelagert ist, die von Klammern 21 gehalten wird. Eine erste Feder 12 drückt ein
erstes Tellerventil 13 in die geschlossene Stellung. Eine zweite Feder 14 belastet
ein zweites Tellerventil 15 in Schließrichtung. Die Federn 12 und 14 sind als
Druckschraubenfedern ausgebildet. Das Tellerventil 13 steuert eine Öffnung,
durch die Kühlwasser vom nicht dargestellten Kühler zur Kühlwasserpumpe 2
rückgeführt wird. Das Tellerventil 15 steuert den Bypassanschluss 16, über den
Kühlwasser direkt vom nicht dargestellten Motorblock bzw. Zylinderkopf rückgeführt
wird. An einem seitlichen Flansch 17 des Bauteils 1 ist ein Anschlussteil 18
für den Rücklauf von einem nicht dargestellten Heizungswärmetauscher vorgesehen.
Am Anschlussteil 18 ist ein Strömungsumlenkbügel 19 angeformt, der den
Thermostat 5 umschließt. Der Bügel 19 hat die Aufgabe, das Kühlwasser, das
durch das Tellerventil 15 einströmt, so umzulenken, dass es den Thermostat 5
sicher umströmt. Dadurch wird gewährleistet, dass der Thermostat auf eine Erhöhung
der Temperatur des rücklaufenden Kühlwassers schnell und zuverlässig
reagiert und bei Überschreiten einer vorbestimmten Temperatur das Tellerventil
15 schließt. Die Ausbildung des Strömungsumlenkbügels 19 aus Kunststoff ermöglicht
eine wesentliche Vereinfachung des Herstellungsverfahrens für den
Bauteil 1 im Vergleich zu einer an diesem angeformten Rippe. Dadurch kann eine
wesentliche Kostenersparnis erzielt werden.The
Eine Dichtung 20 ist vorgesehen, um den Anschlussteil 18 gegenüber dem
Flansch 17 abzudichten.A
Der Strömungsumlenkbügel 19 kann einstückig mit dem Anschlussteil 18 ausgebildet
sein, in einer alternativen Ausführungsvariante kann jedoch vorgesehen
sein, dass der Strömungsumlenkbügel 19 an einem eigenen Befestigungsteil angeformt
ist, der mit dem Anschlussteil 18 in zwei unterschiedlichen Stellungen
verbindbar ist, beispielsweise über eine Schwalbenschwanzführung. Dadurch ist
es möglich, unter Verwendung von gleichen Bauteilen den Anschlussteil 18 in
unterschiedlichen Stellungen zu befestigen, d. h. in einer Stellung, in der der Anschlussteil
18 in der Fig. 2 nach links zeigt, wie dargestellt, oder alternativ dazu
in einer Stellung, in der er nach rechts zeigt.The
Die vorliegende Erfindung ermöglicht es, eine Baugruppe, bestehend aus Kühlwasserpumpe und Thermostat, mit wenigen Bauteilen und geringem Herstellungsaufwand zu realisieren.The present invention enables an assembly consisting of a cooling water pump and thermostat, with few components and low manufacturing costs to realize.
Claims (8)
- Cooling system for motor vehicles with a water pump configured as radial-flow pump and a thermostat (5) for control of the cooling system, which thermostat (5) is installed in a thermostat housing (1b), the water pump (2) having an inlet-side housing (1a), which is formed integral with the thermostat housing (1b) and constitutes a first part (1), a fitting (6) being provided for the return line of the cooling water from the radiator, in addition to a bypass fitting (16) via which cooling water is directly recirculated from the engine block or cylinder head, characterized in that in addition to said fitting (6) for the return line of the cooling water and said bypass fitting (16), a connecting piece (18) of the heater return line is provided, which includes a flow directing baffle (19) as integral part for partially enclosing the thermostat (5).
- Cooling system according to claim 1, characterized in that a support (4a) of the thermostat (5) is made in one piece with a bearing part (4) of the water pump (2).
- Cooling system according to any of claims 1 or 2, characterized in that a delivery-side chamber (9a, 9b) of the water pump (2) is partially constituted by part (1) forming the inlet-side housing (1a) and partially by the bearing part (4).
- Cooling system according to claim 3, characterized in that the gasket plane between the inlet-side housing (1a) and the bearing part (4) extends essentially along the middle plane of the delivery-side chamber (9a, 9b).
- Cooling system according to any of claims 1 to 4, characterized in that a connecting piece (18) is provided for a heater return line, which is attached to a flange face (17) on the thermostat housing (1b), said face (17) running essentially parallel to the axial direction of the thermostat (5).
- Cooling system according to any of claims 1 to 5, characterized in that the connecting piece (18) for the heater return line is oriented such that the flow towards the thermostat (5) is essentially at a right angle to the thermostat axis.
- Cooling system according to any of claims 1 to 6, characterized in that the flow directing baffle (19) is integrated in a mounting element, to which the connecting piece (18) for a heater return line may be attached in two different positions.
- Cooling system according to any of claims 1 to 7, characterized in that the inlet-side housing is configured as part of the engine block or cylinder head of an internal combustion engine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0069597U AT2537U1 (en) | 1997-11-06 | 1997-11-06 | COOLING SYSTEM FOR MOTOR VEHICLES |
| AT69597U | 1997-11-06 | ||
| AT695/97U | 1997-11-06 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0915237A2 EP0915237A2 (en) | 1999-05-12 |
| EP0915237A3 EP0915237A3 (en) | 2000-01-05 |
| EP0915237B1 true EP0915237B1 (en) | 2002-09-25 |
Family
ID=3497395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98890316A Expired - Lifetime EP0915237B1 (en) | 1997-11-06 | 1998-10-29 | Cooling system for an internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6112706A (en) |
| EP (1) | EP0915237B1 (en) |
| AT (2) | AT2537U1 (en) |
| DE (1) | DE59805674D1 (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110561A (en) * | 1998-10-05 | 2000-04-18 | Honda Motor Co Ltd | Cooling device for engine |
| DE19943981A1 (en) * | 1999-09-14 | 2001-03-15 | Behr Thermot Tronik Gmbh & Co | Valve for regulating temperature of internal combustion engine is arranged on suction side of coolant pump whose pressure side is associated with engine inlet |
| US6394059B2 (en) * | 2000-01-26 | 2002-05-28 | International Engine Intellectual Property Company, L.L.C. | Front module housing |
| US6343573B1 (en) * | 2000-08-22 | 2002-02-05 | Nippon Thermostat Co., Ltd. | Thermostat device |
| FR2816359B1 (en) * | 2000-11-08 | 2005-09-02 | Valeo Thermique Moteur Sa | COOLING FLUID AND HEATING CIRCUIT FOR MOTOR VEHICLE |
| DE10100373B4 (en) | 2001-01-05 | 2004-03-25 | Dr.Ing.H.C. F. Porsche Ag | Water pump for conveying coolant in an internal combustion engine |
| US6843209B2 (en) * | 2001-06-20 | 2005-01-18 | Honda Giken Kogyo Kabushiki Kaisha | Engine cooling water passage structure and gas/liquid separator for engine cooling system |
| FR2840953B1 (en) * | 2002-06-12 | 2004-09-03 | Mark Iv Systemes Moteurs Sa | WATER OUTLET HOUSING PROVIDED WITH THERMOSTAT AND MANUFACTURING METHOD |
| FR2842249B1 (en) * | 2002-07-11 | 2004-09-24 | Mark Iv Systemes Moteurs Sa | MODULE AND COOLING CIRCUIT COMPRISING SUCH A MODULE |
| FR2842250B1 (en) * | 2002-07-12 | 2004-09-24 | Mark Iv Systemes Moteurs Sa | MODULE FOR COOLING CIRCUIT AND CIRCUIT COMPRISING SUCH A MODULE |
| US6679431B1 (en) | 2002-12-06 | 2004-01-20 | Mathson Industries | Thermostat housing with integral valve |
| FR2864194B1 (en) * | 2003-12-18 | 2006-02-03 | Renault Sas | SEAL PROTECTION DEVICE |
| US7108193B2 (en) * | 2003-12-29 | 2006-09-19 | Wahler Metalurgica Ltda | Integration of a thermostat in the recycling system of the vehicular exhaust gas recirculation (EGR) system |
| DE102004004050A1 (en) * | 2004-01-27 | 2005-08-11 | Bayerische Motoren Werke Ag | Coolant pump arrangement for an internal combustion engine |
| JP4444056B2 (en) * | 2004-09-30 | 2010-03-31 | 本田技研工業株式会社 | Engine cooling structure |
| DE102006019579A1 (en) * | 2006-04-27 | 2007-10-31 | Bayerische Motoren Werke Ag | Coolant circuit for an internal combustion engine |
| US7353793B1 (en) * | 2007-02-06 | 2008-04-08 | International Engine Intellectual Property Company, Llc | Hold down plate for securing a component |
| WO2010146609A1 (en) * | 2009-06-19 | 2010-12-23 | Industrie Saleri Italo S.P.A. | Mechanical coolant pump, particularly for vehicles, and working method of the pump |
| KR20110051832A (en) * | 2009-11-11 | 2011-05-18 | 현대자동차주식회사 | Engine that is provided with water pump |
| EP2644861B1 (en) * | 2012-03-28 | 2016-05-18 | Honda Motor Co., Ltd. | Motorcycle with a cooling system structure and a water-cooled internal combustion engine |
| US9157448B2 (en) | 2012-04-03 | 2015-10-13 | General Electric Company | Turbulence member, system and fluid handling device for protecting a seal assembly |
| US9347363B2 (en) | 2013-02-14 | 2016-05-24 | Cummins Ip, Inc. | Fluid pump assembly |
| CN103644023A (en) * | 2013-11-07 | 2014-03-19 | 山西新天地发动机制造有限公司 | Engine water pump with thermostat chamber |
| DE102015224448A1 (en) * | 2015-12-07 | 2017-06-08 | Mahle International Gmbh | Coolant pump for a motor cooling circuit |
| KR20200100295A (en) * | 2019-02-18 | 2020-08-26 | 현대자동차주식회사 | Temperature Responsive Variable Type Water Pump and Engine Cooling System Thereof |
| KR20200116676A (en) * | 2019-04-02 | 2020-10-13 | 현대자동차주식회사 | Water pump |
| US11898486B2 (en) * | 2021-08-06 | 2024-02-13 | Carter Fuel Systems, Llc | Water pump assemblies and related methods |
| DE102022210905A1 (en) * | 2022-10-14 | 2024-04-25 | Zf Friedrichshafen Ag | Supply module housing for a vehicle, supply module for a vehicle and vehicle |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2871836A (en) * | 1956-01-18 | 1959-02-03 | Gen Motors Corp | Engine cooling system with radiator by-pass |
| DE2940427C2 (en) * | 1979-10-05 | 1985-04-25 | Bayerische Motoren Werke AG, 8000 München | Liquid-cooled internal combustion engine |
| JPS611819A (en) * | 1984-05-10 | 1986-01-07 | Honda Motor Co Ltd | Driving apparatus of water pump in water-cooled internal-combustion engine |
| DE3510148A1 (en) * | 1984-12-14 | 1986-06-26 | Daimler-Benz Ag, 7000 Stuttgart | Cooling circuit of a liquid-cooled internal combustion engine |
| CA1264431A (en) * | 1985-02-19 | 1990-01-16 | Yoshikazu Kuze | Cooling system for an automobile engine |
| JPS639622A (en) * | 1986-06-30 | 1988-01-16 | Fuji Heavy Ind Ltd | Cooling device of engine |
| JP2505566Y2 (en) * | 1987-11-26 | 1996-07-31 | 日産自動車株式会社 | Water pump device |
| JP2654286B2 (en) * | 1991-11-19 | 1997-09-17 | 株式会社日本自動車部品総合研究所 | Water-cooled engine cooling system |
| JPH06241042A (en) * | 1993-02-12 | 1994-08-30 | Nissan Motor Co Ltd | Cooling device of internal combustion engine |
| US5329888A (en) * | 1993-08-09 | 1994-07-19 | Brunswick Corporation | Thermostat housing assembly for a marine engine |
| US5715776A (en) * | 1994-07-26 | 1998-02-10 | Daewoo Motor Co., Ltd. | Cooling system for an internal combustion engine |
| DE19646933A1 (en) * | 1996-11-13 | 1998-05-14 | Bayerische Motoren Werke Ag | Device for thermostat-regulated cooling medium circuit controlled by a pump for internal combustion engine |
-
1997
- 1997-11-06 AT AT0069597U patent/AT2537U1/en not_active IP Right Cessation
-
1998
- 1998-10-29 AT AT98890316T patent/ATE224999T1/en not_active IP Right Cessation
- 1998-10-29 DE DE59805674T patent/DE59805674D1/en not_active Expired - Lifetime
- 1998-10-29 EP EP98890316A patent/EP0915237B1/en not_active Expired - Lifetime
- 1998-11-06 US US09/187,042 patent/US6112706A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AT2537U1 (en) | 1998-12-28 |
| ATE224999T1 (en) | 2002-10-15 |
| EP0915237A2 (en) | 1999-05-12 |
| US6112706A (en) | 2000-09-05 |
| EP0915237A3 (en) | 2000-01-05 |
| DE59805674D1 (en) | 2002-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0915237B1 (en) | Cooling system for an internal combustion engine | |
| EP0639736B1 (en) | Control valve | |
| DE602005004579T2 (en) | Multifunctional module, vehicle containing such a module and method for producing such a module | |
| DE10227582B4 (en) | Engine cooling water duct structure for an engine cooling system | |
| DE60224437T2 (en) | COOLANT CONTROL VALVE FOR VEHICLES | |
| DE102005048286B4 (en) | Method for operating a cooling system for an internal combustion engine | |
| DE69816891T2 (en) | Cooling system for an internal combustion engine, in particular for motor vehicles | |
| DE69835959T2 (en) | DEVICE FOR ASSEMBLING THE EXHAUST GAS VALVE | |
| WO2004088143A1 (en) | Coolant pump, especially electric convection-cooled coolant pump with integrated directional control valve, and corresponding method | |
| DE4329522A1 (en) | Throttle device | |
| DE112009001025T5 (en) | Electronically controlled viscous fan drive with socket | |
| DE102013021090B4 (en) | Cooling water control | |
| DE102018118804A1 (en) | Cooling device for a motor | |
| DE19960931A1 (en) | Three-way valve | |
| DE19540591A1 (en) | Volume flow regulating process for vehicle coolant circuit | |
| DE3420277A1 (en) | FAN FOR INTERNAL COMBUSTION ENGINES | |
| EP1523425A1 (en) | Cooling module for the engine of a motor vehicle | |
| EP1474592B1 (en) | Water-cooled, multicylinder internal combustion engine | |
| WO1998002650A1 (en) | Cooling system for an internal combustion engine | |
| EP1640572A2 (en) | Lubrication method for prime mover | |
| EP0855304A1 (en) | Cooling module | |
| DE19856770B4 (en) | Cooling system for an internal combustion engine | |
| DE102020213993A1 (en) | Valve and device for heating oil using exhaust heat | |
| DE4030200A1 (en) | ENGINE COOLING SYSTEM | |
| DE10155337B4 (en) | Cooling circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT DE ES FR GB IT |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| 17P | Request for examination filed |
Effective date: 19991220 |
|
| AKX | Designation fees paid |
Free format text: AT DE ES FR GB IT |
|
| 17Q | First examination report despatched |
Effective date: 20010223 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE ES FR GB IT |
|
| REF | Corresponds to: |
Ref document number: 224999 Country of ref document: AT Date of ref document: 20021015 Kind code of ref document: T |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021029 |
|
| REF | Corresponds to: |
Ref document number: 59805674 Country of ref document: DE Date of ref document: 20021031 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20021209 |
|
| ET | Fr: translation filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030328 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20030626 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20051018 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20061030 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20061031 Year of fee payment: 9 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20061029 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061029 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20080630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071029 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20091009 Year of fee payment: 12 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59805674 Country of ref document: DE Effective date: 20110502 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110502 |