EP0903482B1 - Control device of the coolant circuit for an internal combustion engine - Google Patents
Control device of the coolant circuit for an internal combustion engine Download PDFInfo
- Publication number
- EP0903482B1 EP0903482B1 EP98115482A EP98115482A EP0903482B1 EP 0903482 B1 EP0903482 B1 EP 0903482B1 EP 98115482 A EP98115482 A EP 98115482A EP 98115482 A EP98115482 A EP 98115482A EP 0903482 B1 EP0903482 B1 EP 0903482B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- pipe
- differential pressure
- heating
- plate
- 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
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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
- 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
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- 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
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
-
- 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
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/08—Cabin heater
Definitions
- the invention relates to a device for control the cooling water circuit for an internal combustion engine after further defined in the preamble of claim 1 Art.
- a generic device is from the US-PS 3,302,696 known. With the provided differential pressure valve is at low engine speeds of Cooling water flow through the internal combustion engine and a Bypass line routed to a faster heating to reach the cooling water.
- U.S. Patent 4,972,808 describes another such Device.
- the disadvantage of this device However, that during the warm-up phase of the engine or during a longer operation at low speeds, such as. "stop and go" operation in city traffic over not enough heat to the heating heat exchanger Heating of the passenger compartment provided can be. Will still be sufficient Heating power required, are additional equipment, such as e.g. a separate heater for the heating heat exchanger and / or heating water pumps required.
- the present invention is based on the object a device of the type mentioned above to such improve that under all operating conditions the available heat is better used.
- Fig. 1 cooling water circuit is basically with regard to structure and mode of action of known design, which is why only briefly on the essential parts.
- An internal combustion engine 1 with a crankcase 2 and a cylinder head 3 is above the cylinder head 3 at connected to a cooling water circuit.
- the cooling water circuit has a water pump 4, over the crankshaft of the engine is driven.
- a thermostatic valve 5 in a thermostat housing. 6
- the thermostatic valve 5 with cooling water channels the cylinder head 3 connected.
- a bypass line 7 On the output side leads from the thermostatic valve 5, a bypass line 7, a heating line 8 and a water cooler supply line 9 out.
- a heating heat exchanger 10 In the heating line 8 is located a heating heat exchanger 10 through which heating a passenger compartment, not shown, takes place.
- a heating return 11 in which also the Bypass line 7 opens, there is a return from cooling water to the water pump 4.
- the water cooler supply 9 leads to a water cooler 12, from which a water pump supply line 13 goes off, which leads to the water pump 4.
- a differential pressure valve 14 is arranged, that in terms of a constructive simplification and easy installation in the thermostatic valve body 6 is integrated. Of course that can Differential pressure valve 14 but also at another Place as a separate unit in the bypass line 7 be arranged.
- the differential pressure valve 14 has a closing member 15th on, by a coil spring 16 as a spring device is biased in the closed position.
- thermostatic valve 5 is a two-plate valve formed with valve plates 17 and 18.
- thermostatic valve design conceivable.
- Fig. 2 shows a short circuit operation in the warm-up phase of the engine 1 at low engine speeds and thus at a low water pump speed.
- the thermostatic valve 5 in known manner switched so that the valve plate 17 the water cooler supply 9 to the water cooler 12 locks.
- the prior art would be in this Fall a division of the cooling water flow on the Heating line 8 and the bypass line 7 take place, which for the heating heat exchanger 10 a corresponding reduced thermal energy would be available due to the low speed and the lower one Temperature of the engine for heating a passenger compartment would be insufficient.
- the differential pressure valve 14 is provided.
- the differential pressure valve 14 is located in the in the closed position shown in FIG. 2, wherein the valve plate 17, the input port to the radiator inlet 9 because of the low Motor temperature shut off. This will do the whole Cooling water introduced into the heating line 8 and thus provided to the heating heat exchanger 10.
- the thermostatic valve 5 When the temperature of the engine is a preselected value achieved, e.g. greater than 80 ° C, opens in a known manner the thermostatic valve 5 for a mixing phase (see FIG. 3).
- the two valve platter 17 and 18 In a middle position where all exits are open from the thermostatic valve housing 6, namely the bypass line 7, the heating line 8 and the Water cooler supply 9.
- This phase means the beginning the flow of cooling water through the water cooler inlet 9 and the flow through the radiator 12, before on the water pump return line 13th a return to the water pump 4 takes place.
- the closing member 15 of the differential pressure valve 14 is closed, which in turn the Heating heat exchanger 10 amplifies heat energy supplied becomes.
- Fig. 4 shows the position of the two valve plate 17 and 18 in the normal operating condition, e.g. at temperatures greater than 100 ° C. As can be seen, is in this case, the thermostatic valve 5 in the direction the water cooler inlet 9 and the heating line 8 full opened and the bypass line 7 is through the valve plate 18 closed.
- the cooling water guide according to Fig. 4 thus corresponds to the known cooling water flow According to the state of the art.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
- Air-Conditioning For Vehicles (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Regelung des Kühlwasserkreislaufes für einen Verbrennungsmotor nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to a device for control the cooling water circuit for an internal combustion engine after further defined in the preamble of claim 1 Art.
Eine gattungsgemäße Vorrichtung ist aus der US-PS 3,302,696 bekannt. Mit dem dabei vorgesehenen Differenzdruckventil wird bei niedrigen Motordrehzahlen der Kühlwasserstrom durch die Brennkraftmaschine und eine Bypassleitung geleitet, um ein schnelleres Aufheizen des Kühlwassers zu erreichen.A generic device is from the US-PS 3,302,696 known. With the provided differential pressure valve is at low engine speeds of Cooling water flow through the internal combustion engine and a Bypass line routed to a faster heating to reach the cooling water.
Zwar mag ein solches schnelleres Aufheizen des Kühlwassers möglich sein, für die Beheizung des Fahrgastinnenraums bringt dies jedoch keine entscheidenden Vorteile.Although such a faster heating of the cooling water be possible for the heating of the passenger compartment However, this brings no decisive Advantages.
Die US-PS 4 972 808 beschreibt eine weitere derartige Vorrichtung. Nachteilig bei dieser Vorrichtung ist jedoch, daß während der Warmlaufphase des Motores oder bei einem längeren Betrieb mit niedrigen Drehzahlen, wie z.B. "stop and go"-Betrieb im Stadtverkehr über den Heizungs-Wärmetauscher nicht genügend Wärme zur Beheizung des Fahrgastinnenraumes zur Verfügung gestellt werden kann. Wird trotzdem eine ausreichende Heizleistung gewünscht, sind Zusatzeinrichtungen, wie z.B. eine gesonderte Heizeinrichtung für den Heizungs-Wärmetauscher und/oder Heizwasserpumpen erforderlich.U.S. Patent 4,972,808 describes another such Device. The disadvantage of this device However, that during the warm-up phase of the engine or during a longer operation at low speeds, such as. "stop and go" operation in city traffic over not enough heat to the heating heat exchanger Heating of the passenger compartment provided can be. Will still be sufficient Heating power required, are additional equipment, such as e.g. a separate heater for the heating heat exchanger and / or heating water pumps required.
Zum allgemeinen Stand der Technik wird noch auf die DE 43 33 110 A1, die DE 195 08 102 C1 und die DE 29 23 523 A1 hingewiesen.The general state of the art is still on the DE 43 33 110 A1, DE 195 08 102 C1 and DE 29 23 523 A1.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs erwähnten Art derart zu verbessern, dass unter allen Betriebsbedingungen die verfügbare Wärme besser genutzt wird.The present invention is based on the object a device of the type mentioned above to such improve that under all operating conditions the available heat is better used.
Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil von Anspruch 1 genannten Merkmale gelöst.According to the invention, this object is achieved by the characterizing Part of claim 1 mentioned features solved.
Durch das Differenzdruckventil und dessen Schaltung wird insbesondere in der Warmlaufphase des Motors eine maximale Wärmeabgabe über den Heizungs-Wärmetauscher bei niedrigen Motordrehzahlen erreicht, denn die gesamte Kühlwassermenge strömt über die Heizung, womit die anfallende Motorwärme vollständig über den Heizungs-Wärmetauscher abgegeben werden kann. Erst bei höheren Wasserpumpendrehzahlen öffnet das Differenzdruckventil und es erfolgt in bekannter Weise eine Aufteilung des Kühlwasserstromes über die Bypass-Leitung und die Heizungsleitung. Through the differential pressure valve and its circuit Especially in the warm-up phase of the engine is a maximum heat output via the heating heat exchanger achieved at low engine speeds, because the entire Cooling water flow over the heater, which the resulting engine heat completely over the heating heat exchanger can be delivered. Only at; only when higher water pump speeds opens the differential pressure valve and it is done in a known manner Distribution of the cooling water flow via the bypass line and the heating pipe.
Im normalen Fahrbetrieb kann in herkömmlicher Weise der Kühlwasserkreislauf in einem Mischbetrieb betrieben werden, wobei über ein Thermostatventil eine zusätzliche Aufteilung des Kühlwassers in eine Rückleitung erfolgen kann, die über den Kühler geführt wird.In normal driving can be done in a conventional manner the cooling water circuit operated in a mixed operation be, with a thermostatic valve an additional Distribution of cooling water in a return line can take place, which is passed over the radiator.
Im Normalbetrieb bei Temperaturen oberhalb einer vorgegebenen Temperatur sperrt das Thermostatventil gleichzeitig die Bypassleitung und gewährleistet dadurch, dass auch bei höheren Drehzahlen die gesamte Wassermenge über die Heizleitung und/oder die Rückleitung geführt wird.In normal operation at temperatures above a predetermined Temperature locks the thermostatic valve at the same time the bypass line, thereby ensuring that even at higher speeds the entire Amount of water via the heating pipe and / or the return pipe to be led.
In den Unteransprüchen und in dem nachfolgend prinzipmäßig anhand der Zeichnung beschriebenen Ausführungsbeispiel sind vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung ersichtlich.In the subclaims and in the following principle Embodiment described with reference to the drawing are advantageous developments and refinements of the invention.
Es zeigt:
- Fig. 1
- Schemadarstellung eines Kühlwasserkreislaufes mit einem Thermostatventil und einem Differenzdruckventil,
- Fig. 2
- das Thermostatventil mit dem Differenzdruckventil im Kurzschlußbetrieb,
- Fig. 3
- das Thermostatventil mit dem Differenzdruckventil in der Mischphase, und
- Fig. 4
- das Thermostatventil mit dem Differenzdruckventil im normalen Betriebszustand.
- Fig. 1
- Schematic representation of a cooling water circuit with a thermostatic valve and a differential pressure valve,
- Fig. 2
- the thermostatic valve with the differential pressure valve in short-circuit operation,
- Fig. 3
- the thermostatic valve with the differential pressure valve in the mixed phase, and
- Fig. 4
- the thermostatic valve with the differential pressure valve in normal operating condition.
Der in der Fig. 1 dargestellte Kühlwasserkreislauf ist grundsätzlich bezüglich Aufbau und Wirkungsweise von bekannter Bauart, weshalb nachfolgend nur kurz auf die wesentlichen Teile eingegangen wird. The illustrated in Fig. 1 cooling water circuit is basically with regard to structure and mode of action of known design, which is why only briefly on the essential parts.
Ein Verbrennungsmotor 1 mit einem Kurbelgehäuse 2 und
einem Zylinderkopf 3 ist über den Zylinderkopf 3 an
einen Kühlwasserkreislauf angeschlossen. Der Kühlwasserkreislauf
weist eine Wasserpumpe 4 auf, die über
die Kurbelwelle des Motors angetrieben wird. In Strömungsrichtung
hinter dem Zylinderkopf 3 befindet sich
ein Thermostatventil 5 in einem Thermostatgehäuse 6.
Eingangsseitig ist das Thermostatventil 5 mit Kühlwasserkanälen
des Zylinderkopfes 3 verbunden. Ausgangsseitig
führt aus dem Thermostatventil 5 eine Bypass-Leitung
7, eine Heizleitung 8 und eine Wasserkühlerzuleitung
9 heraus. In der Heizleitung 8 befindet sich
ein Heizungs-Wärmetauscher 10, durch den eine Aufheizung
eines nicht dargestellten Fahrgastraumes erfolgt.
Über eine Heizungsrückleitung 11, in die auch die
Bypass-Leitung 7 einmündet, erfolgt eine Rückführung
von Kühlwasser zur Wasserpumpe 4.An internal combustion engine 1 with a
Die Wasserkühlerzuleitung 9 führt zu einem Wasserkühler
12, von dem aus eine Wasserpumpenzuleitung 13 abgeht,
die zur Wasserpumpe 4 führt. In der Bypass-Leitung
7 ist ein Differenzdruckventil 14 angeordnet,
das im Hinblick auf eine konstruktive Vereinfachung
und eine einfache Montage in das Thermostatventilgehäuse
6 integriert ist. Selbstverständlich kann das
Differenzdruckventil 14 jedoch auch an einer anderen
Stelle als separate Einheit in der Bypass-Leitung 7
angeordnet sein.The water cooler supply 9 leads to a
Das Differenzdruckventil 14 weist ein Schließglied 15
auf, das durch eine Spiralfeder 16 als Federeinrichtung
in Schließstellung vorgespannt ist.The
Das in der Fig. 1 und in den Figuren 2 bis 4 näher
dargestellte Thermostatventil 5 ist als Zweiplattenventil
mit Ventilplattentellern 17 und 18 ausgebildet.
Selbstverständlich ist im Rahmen der Erfindung jedoch
auch eine andere Thermostatventilausgestaltung denkbar.That in the Fig. 1 and in Figures 2 to 4 closer
illustrated
Nachfolgend ist die Wirkungsweise des Differenzdruckventiles
14 anhand der verschiedenen Stellungen gemäß
Fig. 1 und vergrößert gemäß Figuren 2 bis 4 beschrieben.The following is the operation of the
Die Fig. 2 zeigt einen Kurzschlußbetrieb in der Warmlaufphase
des Motors 1 bei niederen Motordrehzahlen
und damit auch bei einer niederen Wasserpumpendrehzahl.
In diesem Falle ist das Thermostatventil 5 in
bekannter Weise so geschaltet, daß der Ventilplattenteller
17 die Wasserkühlerzuleitung 9 zum Wasserkühler
12 absperrt. Beim Stand der Technik würde in diesem
Falle eine Aufteilung des Kühlwasserstromes auf die
Heizleitung 8 und die Bypass-Leitung 7 erfolgen, womit
für den Heizungs-Wärmetauscher 10 eine entsprechend
reduzierte Wärmeenergie zur Verfügung stehen würde,
die aufgrund der niederen Drehzahl und der niederen
Temperatur des Motors zur Erwärmung eines Fahrgastinnenraumes
ungenügend wäre. Um diesen negativen Effekt
zu vermeiden ist das Differenzdruckventil 14 vorgesehen.
Aufgrund der niederen Drehzahl herrscht im Kühlwasserkreislauf
ein entsprechend niederer Druck, der
nicht ausreicht die Vorspannkraft der Federeinrichtung
16 für das Schließglied 15 zu überwinden. Dies bedeutet
das Differenzdruckventil 14 befindet sich in der
in der Fig. 2 dargestellten geschlossenen Stellung,
wobei der Ventilplattenteller 17 die Eingangsöffnung
zu der Wasserkühlerzuleitung 9 wegen der niedrigen
Motortemperatur absperrt. Dadurch wird das gesamte
Kühlwasser in die Heizleitung 8 eingeleitet und damit
dem Heizungs-Wärmetauscher 10 zur Verfügung gestellt.Fig. 2 shows a short circuit operation in the warm-up phase
of the engine 1 at low engine speeds
and thus at a low water pump speed.
In this case, the
In der Darstellung nach der Fig. 2 befindet sich zwar
der Ventilplattenteller 18 auf Abstand zu der Einströmöffnung
in die Bypass-Leitung 7, aber aufgrund
der niederen Drehzahl hält das Schließglied 15 des
Differenzdruckventiles 14 die Bypass-Leitung 7 geschlossen.
Erst ab einer vorgewählten Motordrehzahl
und damit einem entsprechend höheren Druck im Kühlwasserkreislauf
erfolgt in Abhängigkeit von der Vorspannkraft
der Spiralfeder 16 eine Öffnung der Bypass-Leitung
7. Dies kann z.B. bei einem Druck von ca. 0,3
bar und höher erfolgen. Erst ab diesem Auslegungspunkt
erfolgt eine Teilströmung entsprechend Pfeil A in der
Fig. 2 über das sich öffnende Schließglied 15 in die
Bypass-Leitung 7 zusätzlich zu der Kühlwasserströmung
über die Heizleitung 8.In the illustration of FIG. 2 is indeed
the
Wenn die Temperatur des Motors einen vorgewählten Wert
erreicht, z.B. größer 80 °C, öffnet in bekannter Weise
das Thermostatventil 5 für eine Mischphase (s. Fig.
3). Dabei befinden sich die beiden Ventilplattenteller
17 und 18 in einer Mittelposition, in der alle Ausgänge
aus dem Thermostatventilgehäuse 6 offen sind, nämlich
die Bypass-Leitung 7, die Heizleitung 8 und die
Wasserkühlerzuleitung 9. Diese Phase bedeutet den Beginn
der Durchströmung des Kühlwassers über die Wasserkühlerzuleitung
9 und die Durchströmung des Wasserkühlers
12, bevor über die Wasserpumpenrückleitung 13
eine Rückleitung zur Wasserpumpe 4 erfolgt. Auch in
diesem Falle besteht die Möglichkeit, daß bei niederen
Motordrehzahlen das Schließglied 15 des Differenzdruckventiles
14 geschlossen wird, womit wiederum dem
Heizungs-Wärmetauscher 10 verstärkt Wärmeenergie zugeführt
wird.When the temperature of the engine is a preselected value
achieved, e.g. greater than 80 ° C, opens in a known manner
the
Die Fig. 4 zeigt die Stellung der beiden Ventilplattenteller
17 und 18 im normalen Betriebszustand, z.B.
bei Temperaturen von größer 100 °C. Wie ersichtlich,
ist in diesem Falle das Thermostatventil 5 in Richtung
der Wasserkühlerzuleitung 9 und der Heizleitung 8 voll
geöffnet und die Bypass-Leitung 7 ist durch den Ventilplattenteller
18 geschlossen. Die Kühlwasserführung
nach der Fig. 4 entspricht somit der bekannten Kühlwasserführung
nach dem Stand der Technik.Fig. 4 shows the position of the two
Claims (5)
- Device for regulating the cooling water circuit for an internal combustion engine (1) with a water pump (4) and a thermostat valve (5), which is connected on the inlet side to cooling water channels of the combustion engine (1) and which is connected on the outlet side to a bypass pipe (7), a heating pipe (8) and a radiator feed pipe (9), such that in the bypass pipe (7) is arranged a differential pressure valve (14), in the heating pipe (8) is arranged a heat exchanger (10) for the heating system, and along the radiator feed pipe (9) is arranged a radiator (12), and such that during the warm-up phase of the engine (1) or at low engine temperatures the thermostat valve (5) closes off the radiator feed pipe (9), while during normal operation at temperatures above a predetermined value it opens the said feed pipe (9),
characterised in that
below a predetermined pressure the differential pressure valve (14) completely closes off the bypass pipe (7) and during normal operation the thermostat valve (7) also closes off the bypass pipe (7), while during a mixed phase between the warm-up phase and normal operation it opens the bypass pipe (7), the heating pipe (8) and the radiator feed pipe (9). - Device according to Claim 1,
characterised in that
the differential pressure valve (14) is provided with a spring mechanism (16) to prestress it in the closing position. - Device according to Claims 1 or 2,
characterised in that
the differential pressure valve (14) is accommodated in the thermostat housing (6) of the thermostat valve (5). - Device according to any of Claims 1 to 3,
characterised in that
the thermostat valve (5) is formed as a plate valve with at least one valve-plate disc (18), behind which the bypass pipe (7) branches off. - Device according to Claim 4,
characterised in that
the plate valve is formed as a two-plate valve, such that behind one plate-valve disc (18) the bypass pipe (7) branches off, and behind the second plate-valve seat (17) a radiator feed pipe (9) leading to the radiator (12) branches off.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19741861 | 1997-09-23 | ||
| DE19741861A DE19741861B4 (en) | 1997-09-23 | 1997-09-23 | Device for controlling the cooling water circuit for an internal combustion engine |
| US09/159,190 US6109218A (en) | 1997-09-23 | 1998-09-23 | Apparatus for regulating the coolant circuit for an internal combustion engine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0903482A2 EP0903482A2 (en) | 1999-03-24 |
| EP0903482A3 EP0903482A3 (en) | 1999-04-07 |
| EP0903482B1 true EP0903482B1 (en) | 2003-04-23 |
Family
ID=26040220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98115482A Expired - Lifetime EP0903482B1 (en) | 1997-09-23 | 1998-08-18 | Control device of the coolant circuit for an internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6109218A (en) |
| EP (1) | EP0903482B1 (en) |
| DE (2) | DE19741861B4 (en) |
| ES (1) | ES2196441T3 (en) |
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| DE10007241B4 (en) * | 2000-02-17 | 2006-03-16 | Daimlerchrysler Ag | Cooling water circuit of an internal combustion engine |
| DE10043618A1 (en) | 2000-09-05 | 2002-03-14 | Daimler Chrysler Ag | Cooling fluid circuit for motor vehicle internal combustion engine has valve to selectively close off coolant duct while starting for rapid warm up |
| DE10052327A1 (en) * | 2000-10-17 | 2002-04-18 | Behr Gmbh & Co | Regulator valve for heating system in motor vehicles is located in return line and has three switching position for two independent heating circuits |
| DE10052328A1 (en) * | 2000-10-17 | 2002-04-18 | Behr Gmbh & Co | Differential pressure valve for use in by-pass hose in car heater comprises housing containing cylindrical chamber, valve seat being mounted on wall of chamber valve body being attached to arm, allowing it to pivot about axis of chamber |
| DE10145980A1 (en) * | 2001-09-18 | 2003-04-10 | Siemens Ag | Method and device for regulating the coolant volume flow in an internal combustion engine |
| US6539899B1 (en) * | 2002-02-11 | 2003-04-01 | Visteon Global Technologies, Inc. | Rotary valve for single-point coolant diversion in engine cooling system |
| DE102005010236A1 (en) * | 2005-03-05 | 2006-09-14 | Daimlerchrysler Ag | Cooling circuit for an internal combustion engine |
| DE102006017925A1 (en) * | 2006-04-18 | 2007-10-31 | Audi Ag | Cooling system for engine of vehicle, has flowable component with differential pressure-dependent flow resistance arranged in bypass line of circuit, where bypass line connects coolant supply line, coolant return pipe and heater return pipe |
| CA2651087C (en) * | 2006-05-08 | 2015-07-07 | Magna Powertrain Inc. | Vehicle cooling system with directed flows |
| US7497751B1 (en) * | 2007-04-27 | 2009-03-03 | Brunswick Corporation | Alternative cooling path system for a marine propulsion device |
| FR2944321A1 (en) * | 2009-04-14 | 2010-10-15 | Peugeot Citroen Automobiles Sa | Method for utilizing cooling circuit of heat engine of vehicle, involves actuating opening/closing unit such that case functions according to four modes, where control unit positions opening/closing unit in first mode to close outlets |
| GB201209679D0 (en) | 2012-05-31 | 2012-07-18 | Jaguar Cars | Fluid flow control device and method |
| CN103670657B (en) * | 2012-09-13 | 2016-09-28 | 北京汽车动力总成有限公司 | A kind of engine-cooling system, electromotor and vehicle |
| DE102013211333A1 (en) * | 2013-06-18 | 2014-12-18 | Bayerische Motoren Werke Aktiengesellschaft | Thermostatic rotary valve and cooling system |
| FR3047514B1 (en) * | 2016-02-05 | 2018-03-23 | Peugeot Citroen Automobiles Sa | METHOD FOR PROTECTING A COOLING FLUID CIRCUIT OF A MOTOR AGAINST INTERNAL OVERPRESSURE |
| US11053837B2 (en) * | 2016-12-09 | 2021-07-06 | Volvo Truck Corporation | Cooling system valve |
| FR3079559A1 (en) * | 2018-03-27 | 2019-10-04 | Psa Automobiles Sa | WATER OUTPUT BOX AND THERMAL MANAGEMENT DEVICE OF A VEHICLE MOTOR POWERTRAIN |
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| US3302696A (en) * | 1965-02-08 | 1967-02-07 | James R Rogers | Pressure response by-pass valve for heat exchange systems |
| DE2907353A1 (en) * | 1979-02-24 | 1980-09-04 | Bosch Gmbh Robert | INTERNAL COMBUSTION ENGINE WITH LIQUID COOLING |
| DE2923523A1 (en) * | 1979-06-09 | 1980-12-11 | Daimler Benz Ag | Thermostatic engine coolant control - has heat-up and by=pass valves operated by expansion element in independent coolant circuit |
| JPS57181920A (en) * | 1981-05-01 | 1982-11-09 | Fuji Heavy Ind Ltd | Cooling controller for water-cooled engine |
| JPS61201816A (en) * | 1985-03-04 | 1986-09-06 | Daihatsu Motor Co Ltd | Cooling device for engine |
| DE3633576A1 (en) * | 1986-10-02 | 1988-04-07 | Kloeckner Humboldt Deutz Ag | INTERNAL COMBUSTION ENGINE |
| JP2505566Y2 (en) * | 1987-11-26 | 1996-07-31 | 日産自動車株式会社 | Water pump device |
| US4972808A (en) * | 1989-04-03 | 1990-11-27 | Nissan Motor Co., Ltd. | Arrangement of cooling system for transversely mounted internal combustion engine |
| JP2911008B2 (en) * | 1990-09-20 | 1999-06-23 | 三信工業株式会社 | Water cooling system for ship propulsion |
| DE4333110A1 (en) * | 1993-09-29 | 1995-03-16 | Daimler Benz Ag | Coolant circuit for motor vehicles with a liquid-cooled internal combustion engine |
| JPH08177491A (en) * | 1994-12-27 | 1996-07-09 | Toyota Motor Corp | Cooling device for internal combustion engine |
| DE19506935C1 (en) * | 1995-02-28 | 1996-04-04 | Daimler Benz Ag | IC engine cooling and vehicle heating circuits |
| DE19508102C1 (en) | 1995-03-08 | 1996-07-25 | Volkswagen Ag | Method for regulating a cooling circuit of an internal combustion engine, in particular for motor vehicles |
| JP3596099B2 (en) * | 1995-07-10 | 2004-12-02 | 株式会社デンソー | Heating system |
-
1997
- 1997-09-23 DE DE19741861A patent/DE19741861B4/en not_active Expired - Fee Related
-
1998
- 1998-08-18 ES ES98115482T patent/ES2196441T3/en not_active Expired - Lifetime
- 1998-08-18 EP EP98115482A patent/EP0903482B1/en not_active Expired - Lifetime
- 1998-08-18 DE DE59808027T patent/DE59808027D1/en not_active Expired - Fee Related
- 1998-09-23 US US09/159,190 patent/US6109218A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE19741861B4 (en) | 2004-07-22 |
| EP0903482A3 (en) | 1999-04-07 |
| DE59808027D1 (en) | 2003-06-05 |
| US6109218A (en) | 2000-08-29 |
| ES2196441T3 (en) | 2003-12-16 |
| DE19741861A1 (en) | 1999-04-01 |
| EP0903482A2 (en) | 1999-03-24 |
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