EP0903482B1 - Dispositif de commande du circuit de l'eau de refroidissement pour un moteur à combustion interne - Google Patents

Dispositif de commande du circuit de l'eau de refroidissement pour un moteur à combustion interne Download PDF

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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
Application number
EP98115482A
Other languages
German (de)
English (en)
Other versions
EP0903482A2 (fr
EP0903482A3 (fr
Inventor
Reiner Bachschmid
Clemens Bentele
Mario Erdmann
Jens Von Gregory
Mehmet Haseki
Peter Moser
Friedrich Schulz
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0903482A2 publication Critical patent/EP0903482A2/fr
Publication of EP0903482A3 publication Critical patent/EP0903482A3/fr
Application granted granted Critical
Publication of EP0903482B1 publication Critical patent/EP0903482B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Temperature-Responsive Valves (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Claims (5)

  1. Dispositif de régulation du circuit de l'eau de refroidissement pour un moteur à combustion interne (1), comportant une pompe à eau (4) et une valve thermostatique (5) qui est reliée du côté entrée à des canaux à eau de refroidissement du moteur à combustion interne (1) et qui est reliée du côté sortie à une conduite de by-pass (7), à une conduite de chauffage (8) et à une conduite d'alimentation de refroidisseur d'eau (9), dans lequel une valve de pression différentielle (14) est agencée dans la conduite de by-pass (7), un échangeur de chaleur de chauffage (10) est agencé dans la conduite de chauffage (8), et un refroidisseur d'eau (12) est agencé dans la conduite d'alimentation de refroidisseur d'eau (9), et dans lequel la valve thermostatique (5) referme la conduite d'alimentation de refroidisseur d'eau (9) pendant la phase d'échauffement du moteur (1) ou à des températures faibles du moteur et qui la libère pendant le fonctionnement normal à des températures supérieures à une température prédéterminée,
    caractérisé en ce que la valve de pression différentielle (14) referme complètement la conduite de by-pass (7) au-dessous d'une pression prédéterminée, et en ce que la valve thermostatique (7) referme la conduite de by-pass (7) en supplément pendant le fonctionnement normal et libère la conduite de by-pass (7), la conduite de chauffage (8) et la conduite d'alimentation de refroidisseur d'eau pendant une phase mixte entre la phase d'échauffement et le fonctionnement normal.
  2. Dispositif selon la revendication 1, caractérisé en ce que la valve de pression différentielle (14) est pourvue d'un dispositif à ressort (16) pour la précontrainte en position de fermeture.
  3. Dispositif selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que la valve de pression différentielle (14) est reçue dans le boítier (6) de la valve thermostatique (5).
  4. Dispositif selon une des revendications 1 à 3, caractérisé en ce que la valve thermostatique (5) est réalisée sous forme de valve à plaque avec au moins un opercule de valve à plaque (18) en arrière duquel se ramifie la conduite de by-pass (7).
  5. Dispositif selon la revendication 4, caractérisé en ce que la valve à plaque est réalisée sous forme de valve à deux plaques, la conduite de by-pass (7) se ramifiant en arrière d'un opercule de valve à plaque (18) et une conduite de refroidisseur d'eau (9) menant vers le refroidisseur (12) se ramifiant en arrière du deuxième opercule de valve à plaque (17).
EP98115482A 1997-09-23 1998-08-18 Dispositif de commande du circuit de l'eau de refroidissement pour un moteur à combustion interne Expired - Lifetime EP0903482B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19741861A DE19741861B4 (de) 1997-09-23 1997-09-23 Vorrichtung zur Regelung des Kühlwasserkreislaufes für einen Verbrennungsmotor
DE19741861 1997-09-23
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 (fr) 1999-03-24
EP0903482A3 EP0903482A3 (fr) 1999-04-07
EP0903482B1 true EP0903482B1 (fr) 2003-04-23

Family

ID=26040220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115482A Expired - Lifetime EP0903482B1 (fr) 1997-09-23 1998-08-18 Dispositif de commande du circuit de l'eau de refroidissement pour un moteur à combustion interne

Country Status (4)

Country Link
US (1) US6109218A (fr)
EP (1) EP0903482B1 (fr)
DE (2) DE19741861B4 (fr)
ES (1) ES2196441T3 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6478643B2 (en) * 2000-01-07 2002-11-12 Donald M. Jolley Water pressure and volume flow regulator
DE10007241B4 (de) * 2000-02-17 2006-03-16 Daimlerchrysler Ag Kühlwasserkreislauf einer Brennkraftmaschine
DE10043618A1 (de) 2000-09-05 2002-03-14 Daimler Chrysler Ag Kühlmittelkreislauf für eine Brennkraftmaschine
DE10052328A1 (de) * 2000-10-17 2002-04-18 Behr Gmbh & Co Differenzdruckventil
DE10052327A1 (de) * 2000-10-17 2002-04-18 Behr Gmbh & Co Steuerventil für eine Kraftfahrzeug-Heizungsanlage
DE10145980A1 (de) * 2001-09-18 2003-04-10 Siemens Ag Verfahren und Vorrichtung zur Regelung des Kühmittelvolumenstromes in einer Brennkraftmaschine
US6539899B1 (en) * 2002-02-11 2003-04-01 Visteon Global Technologies, Inc. Rotary valve for single-point coolant diversion in engine cooling system
DE102005010236A1 (de) * 2005-03-05 2006-09-14 Daimlerchrysler Ag Kühlkreislauf für eine Brennkraftmaschine
DE102006017925A1 (de) * 2006-04-18 2007-10-31 Audi Ag Kühlsystem für ein Fahrzeug und Verfahren zum Betreiben eines Kühlsystems
US8181610B2 (en) * 2006-05-08 2012-05-22 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 (fr) * 2009-04-14 2010-10-15 Peugeot Citroen Automobiles Sa Procede d'utilisation du circuit de refroidissement d'un moteur thermique
GB201209679D0 (en) * 2012-05-31 2012-07-18 Jaguar Cars Fluid flow control device and method
CN103670657B (zh) * 2012-09-13 2016-09-28 北京汽车动力总成有限公司 一种发动机冷却系统、发动机及车辆
DE102013211333A1 (de) * 2013-06-18 2014-12-18 Bayerische Motoren Werke Aktiengesellschaft Thermostat-Ringschieberventil und Kühlsystem
FR3047514B1 (fr) * 2016-02-05 2018-03-23 Peugeot Citroen Automobiles Sa Procede de protection d’un circuit de fluide de refroidissement d’un moteur contre une surpression interne
WO2018104106A1 (fr) * 2016-12-09 2018-06-14 Volvo Truck Corporation Soupape de système de refroidissement
FR3079559A1 (fr) * 2018-03-27 2019-10-04 Psa Automobiles Sa Boitier de sortie d’eau et dispositif de gestion thermique d’un groupe motopropulseur de vehicule

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Publication number Priority date Publication date Assignee Title
US3302696A (en) * 1965-02-08 1967-02-07 James R Rogers Pressure response by-pass valve for heat exchange systems
DE2907353A1 (de) * 1979-02-24 1980-09-04 Bosch Gmbh Robert Verbrennungskraftmaschine mit fluessigkeitskuehlung
DE2923523A1 (de) * 1979-06-09 1980-12-11 Daimler Benz Ag Thermostatisches regelventil zum einhalten eines im wesentlichen konstanten sollwertes der betriebstemperatur eines fluessigen kuehlmittels einer brennkraftmaschine
JPS57181920A (en) * 1981-05-01 1982-11-09 Fuji Heavy Ind Ltd Cooling controller for water-cooled engine
JPS61201816A (ja) * 1985-03-04 1986-09-06 Daihatsu Motor Co Ltd エンジンの冷却装置
DE3633576A1 (de) * 1986-10-02 1988-04-07 Kloeckner Humboldt Deutz Ag Brennkraftmaschine
JP2505566Y2 (ja) * 1987-11-26 1996-07-31 日産自動車株式会社 ウォ―タポンプ装置
US4972808A (en) * 1989-04-03 1990-11-27 Nissan Motor Co., Ltd. Arrangement of cooling system for transversely mounted internal combustion engine
JP2911008B2 (ja) * 1990-09-20 1999-06-23 三信工業株式会社 船舶推進機の水冷装置
DE4333110A1 (de) * 1993-09-29 1995-03-16 Daimler Benz Ag Kühlflüssigkeitskreislauf für Kraftfahrzeuge mit einem flüssigkeitsgekühlten Verbrennungsmotor
JPH08177491A (ja) * 1994-12-27 1996-07-09 Toyota Motor Corp 内燃機関の冷却装置
DE19506935C1 (de) * 1995-02-28 1996-04-04 Daimler Benz Ag Kühlmittelkreislauf für einen Verbrennungsmotor eines Kraftfahrzeugs
DE19508102C1 (de) 1995-03-08 1996-07-25 Volkswagen Ag Verfahren zur Regelung eines Kühlkreislaufes eines Verbrennungskraftmotors, insbesondere für Kraftfahrzeuge
JP3596099B2 (ja) * 1995-07-10 2004-12-02 株式会社デンソー 暖房装置

Also Published As

Publication number Publication date
ES2196441T3 (es) 2003-12-16
EP0903482A2 (fr) 1999-03-24
US6109218A (en) 2000-08-29
DE19741861A1 (de) 1999-04-01
DE19741861B4 (de) 2004-07-22
DE59808027D1 (de) 2003-06-05
EP0903482A3 (fr) 1999-04-07

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