EP0250734B1 - Kühleinrichtung in einem flüssigkeitsgekühlten Kraftfahrzeug-Verbrennungsmotor - Google Patents
Kühleinrichtung in einem flüssigkeitsgekühlten Kraftfahrzeug-Verbrennungsmotor Download PDFInfo
- Publication number
- EP0250734B1 EP0250734B1 EP87105343A EP87105343A EP0250734B1 EP 0250734 B1 EP0250734 B1 EP 0250734B1 EP 87105343 A EP87105343 A EP 87105343A EP 87105343 A EP87105343 A EP 87105343A EP 0250734 B1 EP0250734 B1 EP 0250734B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- bubble separator
- ascending pipe
- water
- funnel
- 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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/028—Deaeration devices
Definitions
- the invention relates to a cooling device in a motor vehicle for liquid cooling of its internal combustion engine with features according to the preamble of claim 1.
- the invention is based on a prior art according to DE-A 14 26 185, in which a large-volume calming space is provided as part of the cooling device for a motor vehicle engine in the form of a container.
- This forms an additional volume and is connected via a riser pipe with a relatively large diameter to a ventilation line which is laid between the inlet-side water tank of the cooler and the expansion tank.
- Said riser pipe starts at a point near the entry point of the container.
- an overflow transverse wall is provided in the middle of the container from the bottom of the container, which rises vertically and extends approximately to the middle height, and which is intended to promote the separation of air inclusions carried in the suction line to the riser pipe.
- This type of design and volume dimensioning of the bubble separator according to the invention make it possible to achieve a noticeable reduction in the cooling water flow rate.
- the air bubbles to be separated are practically forced up on the inclined wall of the bubble separator and introduced directly into the riser pipe. This enables a very high degree of separation to be achieved; the water pump only sucks in air-free cooling water as far as possible, which means that cavitation damage with the resultant partial destruction of engine components or the total failure of the engine can be effectively avoided.
- the fact that the coolant flowing through the heating circuit is also included in this bubble separation not only ensures that the entire cooling system quickly becomes bubble-free, but also effectively prevents cooling water that is too strongly mixed with air bubbles from being used in the heating circuit could reduce the heating effect.
- a cooling water expansion tank 6 is arranged above the cooler 3.
- a line 7 with the check valve 15 connected connects the cooling water expansion tank 6 to the upper water tank of the cooler 3, while a line 8 connects the cooling water expansion tank 6 to the line 4 which extends between the lower water tank of the cooler 3 and the water pump 12.
- a line 9 branches off from the engine 1, which leads to a heat exchanger 10 and, like the latter and a line 11 extending from it, is part of a heating circuit.
- a bubble separator 13 is installed in the line 4 shortly before the water pump 12 connected to the motor 1.
- the heating circuit 9, 10, 11 opens with its line 11 in flow upstream of the bubble separator 13 into line 4.
- a riser pipe is designated, in which a check valve 15 is also installed and which is connected on the one hand to the expansion tank 6 and on the other hand to the bubble separator 13.
- the bubble separator 13 as can be seen from the drawing, is designed as a funnel-shaped extension of the riser pipe 14, arranged at its lower end and connected to the line 4 with its expanded funnel entry base 17.
- the engine 1 is vented via line 16.
- Fig. 2 shows schematically an embodiment of the bubble separator 13, which is delimited by conical wall parts 18.
- the bubble separator 13 tapers upwards from the funnel inlet base 17 lying in the plane of the line 4 to the point where it enters the riser pipe 14.
- Fig. 3 shows schematically an embodiment of the bubble separator 13, in which the latter is delimited by an inclined wall 19 and a vertical wall 20, the inclined delimitation wall 19 being arranged closer to the cooler 3 in terms of flow and for an inclined upward passage of excreted air to the riser pipe 14 cares.
- the bubble separator 13 generally has a holding volume of at least 3 times the amount of liquid that the inlet cross section of the water pump 12 allows.
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Water Treatments (AREA)
- Motor Or Generator Cooling System (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87105343T ATE56788T1 (de) | 1986-06-28 | 1987-04-10 | Kuehleinrichtung in einem fluessigkeitsgekuehlten kraftfahrzeug-verbrennungsmotor. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3621837 | 1986-06-28 | ||
DE19863621837 DE3621837A1 (de) | 1986-06-28 | 1986-06-28 | Blasenabscheider fuer wassergekuehlte motoren |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0250734A2 EP0250734A2 (de) | 1988-01-07 |
EP0250734A3 EP0250734A3 (en) | 1989-01-04 |
EP0250734B1 true EP0250734B1 (de) | 1990-09-19 |
Family
ID=6304012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87105343A Expired - Lifetime EP0250734B1 (de) | 1986-06-28 | 1987-04-10 | Kühleinrichtung in einem flüssigkeitsgekühlten Kraftfahrzeug-Verbrennungsmotor |
Country Status (6)
Country | Link |
---|---|
US (1) | US4759499A (hu) |
EP (1) | EP0250734B1 (hu) |
JP (1) | JPS639623A (hu) |
AT (1) | ATE56788T1 (hu) |
DE (2) | DE3621837A1 (hu) |
HU (1) | HU199940B (hu) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2640315B1 (fr) * | 1988-12-14 | 1991-02-08 | Peugeot | Dispositif de refroidissement a combustion interne |
ES2081234B1 (es) * | 1992-05-07 | 1998-05-01 | Radiadores Ordonez S A | Perfeccionamientos en radiadores de vehiculos automoviles. |
ES2111421B1 (es) * | 1994-01-28 | 1998-12-01 | Radiadores Ordonez S A | Mejoras introducidas en los circuitos de desgasificacion de radiadores. |
US6123144A (en) * | 1997-04-15 | 2000-09-26 | Cummins Engine Company, Inc. | Integrated heat exchanger and expansion tank |
DE19754797A1 (de) * | 1997-12-10 | 1999-06-17 | Behr Gmbh & Co | Entgasungsvorrichtung |
FR2807827B1 (fr) * | 2000-04-12 | 2002-07-05 | Technomed Medical Systems | Systeme de manipulation de fluide pour appareil de therapie |
JP4296988B2 (ja) * | 2004-05-14 | 2009-07-15 | ソニー株式会社 | 液晶プロジェクター |
JP4381260B2 (ja) * | 2004-08-31 | 2009-12-09 | 愛知機械工業株式会社 | 自動車 |
GB0423802D0 (en) * | 2004-10-27 | 2004-12-01 | Ford Global Tech Llc | Engine cooling systems |
DE102005008669B4 (de) * | 2005-02-25 | 2009-08-20 | Audi Ag | Verfahren zum Betreiben einer Kühleinrichtung einer flüssigkeitsgekühlten Brennkraftmaschine und Kühleinrichtung |
DE102006014400B4 (de) * | 2006-02-02 | 2012-01-26 | Audi Ag | Ausgleichsbehälter für ein Kühlsystem und Kühlanordnung |
DE102006048714A1 (de) * | 2006-10-14 | 2008-04-17 | Daimler Ag | Kühlkreislauf |
US7395787B1 (en) * | 2007-02-13 | 2008-07-08 | Gm Global Technology Operations, Inc. | Air separator for low flow rate cooling systems |
US7669558B2 (en) * | 2007-07-16 | 2010-03-02 | Gm Global Technology Operations, Inc. | Integrated vehicle cooling system |
DE102007057749A1 (de) * | 2007-11-30 | 2009-06-04 | GM Global Technology Operations, Inc., Detroit | Kühlsystem für einen Kfz-Motor |
US9849753B2 (en) | 2008-05-16 | 2017-12-26 | GM Global Technology Operations LLC | Heating system for an automotive vehicle |
AT509435B1 (de) * | 2010-02-02 | 2015-10-15 | Vaillant Group Austria Gmbh | Ausgleichsbehälter für kühlkreisläufe |
JP2015059482A (ja) * | 2013-09-18 | 2015-03-30 | トヨタ自動車株式会社 | 車両用タンク |
DE102013221447A1 (de) * | 2013-10-22 | 2015-05-07 | Volkswagen Aktiengesellschaft | Kühlsystem für ein Kraftfahrzeug |
EP3201445B1 (de) | 2014-10-02 | 2020-09-30 | MTU Friedrichshafen GmbH | Kühlsystem und brennkraftmaschine mit einem solchen kühlsystem |
DE102018007699A1 (de) * | 2018-10-01 | 2020-04-02 | Truma Gerätetechnik GmbH & Co. KG | Vorrichtung zum Erwärmen einer Flüssigkeit |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3195294A (en) * | 1961-03-20 | 1965-07-20 | Ford Motor Co | Fluid separator |
DE1426185A1 (de) * | 1962-07-31 | 1969-01-23 | Daimler Benz Ag | Kuehlkreislauf einer Brennkraftmaschine |
US3525196A (en) * | 1967-09-13 | 1970-08-25 | Schulz Joachim | Device and process for gas removal from liquids |
FR2292109A1 (fr) * | 1974-11-22 | 1976-06-18 | Citroen Sa | Perfectionnements apportes aux dispositifs de refroidissement pour moteur a combustion interne et aux elements de tels dispositifs |
US3952765A (en) * | 1974-12-04 | 1976-04-27 | Shinichi Kimura | Device for separating air bubbles of fluids in piping, and silencing water flow |
CH589462A5 (en) * | 1975-04-16 | 1977-07-15 | Semperit Ag | Liquid in pipeline degassed or defoamed - in dome-like vessel mounted on pipe with blowdown valve |
DE2615728B2 (de) * | 1976-04-10 | 1980-07-10 | Daimler-Benz Ag, 7000 Stuttgart | Kühlmittelkreis einer Brennkraftmaschine |
DE2615729A1 (de) * | 1976-04-10 | 1977-10-20 | Daimler Benz Ag | Fluessigkeitsgekuehlte brennkraftmaschine |
US4504396A (en) * | 1980-05-15 | 1985-03-12 | Isaih Vardi | Purification system |
-
1986
- 1986-06-28 DE DE19863621837 patent/DE3621837A1/de not_active Ceased
-
1987
- 1987-04-10 EP EP87105343A patent/EP0250734B1/de not_active Expired - Lifetime
- 1987-04-10 AT AT87105343T patent/ATE56788T1/de not_active IP Right Cessation
- 1987-04-10 DE DE8787105343T patent/DE3765026D1/de not_active Revoked
- 1987-05-13 US US07/050,637 patent/US4759499A/en not_active Expired - Fee Related
- 1987-05-27 HU HU872453A patent/HU199940B/hu not_active IP Right Cessation
- 1987-06-10 JP JP62145010A patent/JPS639623A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0250734A3 (en) | 1989-01-04 |
HU199940B (en) | 1990-03-28 |
ATE56788T1 (de) | 1990-10-15 |
EP0250734A2 (de) | 1988-01-07 |
DE3765026D1 (de) | 1990-10-25 |
JPS639623A (ja) | 1988-01-16 |
US4759499A (en) | 1988-07-26 |
HUT49391A (en) | 1989-09-28 |
DE3621837A1 (de) | 1988-01-07 |
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