EP0250734A2 - Système de refroidissement dans un véhicule avec un moteur refroidi par liquide - Google Patents

Système de refroidissement dans un véhicule avec un moteur refroidi par liquide Download PDF

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Publication number
EP0250734A2
EP0250734A2 EP87105343A EP87105343A EP0250734A2 EP 0250734 A2 EP0250734 A2 EP 0250734A2 EP 87105343 A EP87105343 A EP 87105343A EP 87105343 A EP87105343 A EP 87105343A EP 0250734 A2 EP0250734 A2 EP 0250734A2
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EP
European Patent Office
Prior art keywords
line
water pump
bubble separator
cooling
cooling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87105343A
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German (de)
English (en)
Other versions
EP0250734A3 (en
EP0250734B1 (fr
Inventor
Heinz Gusinde
Horst Steinert
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6304012&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0250734(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Priority to AT87105343T priority Critical patent/ATE56788T1/de
Publication of EP0250734A2 publication Critical patent/EP0250734A2/fr
Publication of EP0250734A3 publication Critical patent/EP0250734A3/de
Application granted granted Critical
Publication of EP0250734B1 publication Critical patent/EP0250734B1/fr
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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
    • 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 for a liquid-cooled motor vehicle internal combustion engine with a radiator, a water pump, a cooling water expansion tank, a radiator of an engine ventilation and various control and connecting elements.
  • Bubble separators are known in cooling water systems (DE-AS 26 15 728 and DE-OS 26 15 729). These are integrated in the control valve (thermostat). They are much too high compared to the coolant pump and do not have a large-volume calming room in which a low flow velocity and thus absorption of air bubbles can be achieved.
  • the object of the invention is to arrange and design a bubble separator in such a way that optimal separation of air bubbles is achieved with simple means.
  • a bubble separator is arranged between the cooler and the water pump and the bubble separator is connected via a line to the cooling water expansion tank / as the bubble accumulator also holds at least 3 times the amount of liquid which corresponds to the inlet cross section of the water pump.
  • This arrangement of the bubble separator leads to noticeably reduced cooling water flow velocities, so that air bubbles are discharged into the cooling water expansion tank (refill tank) immediately before being re-swirled and do not get into the engine cooling circuit first. In this way, cavitation damage with partial destruction of engine components (cylinder liners, pistons, etc.), which can result in a total failure of the drive unit, is avoided.
  • the large-volume design of the bubble separator also prevents suction through the vent line.
  • the confluence of the heating circuit and the line system is advantageously provided in front of the bubble separator. This makes the entire cooling system bubble-free even faster.
  • the bubble separator is tapered from a broad base, in which the connecting line of the cooler and water pump opens, to the connecting line with the cooling water expansion tank.
  • the air bubbles are compressed into ever larger units with increasing upward speed, which continues to have a positive effect on the ventilation.
  • the optimal air bubble flow to the expansion tank is achieved by means of a conical design of the bubble separator.
  • Fig. 1 shows a motor (1) with gear (2) which is connected via the lines (4, 5) to a cooler (3). Above the cooler (3) there is a cooling water expansion tank (6), the line (7) of which flows into the cooler (3) and the line (8) of which leads into line (4).
  • a line (9) branches off from the motor (1) and leads to a radiator (10), the output of which is connected to line (4) via line (11).
  • An air separator (13) is installed in line (4) shortly before the water pump (12) connected to the motor (1).
  • the air separator is conical and is connected to the cooling water expansion tank via a line (14).
  • the lines (7 and 14) have check valves (15).
  • the engine is vented via line (16).
  • Fig. 2 shows the schematic representation of a bubble separator (13) in a conical configuration (18), the base (17) lying in the plane of the line (4) tapering upwards until it flows into the line (14).
  • Fig. 3 shows a variant of the bubble separator (13) with a slope (19) and a vertical wall (20), the air bubbles moving along the slope (19) to the line (14) and further to the container.
EP87105343A 1986-06-28 1987-04-10 Système de refroidissement dans un véhicule avec un moteur refroidi par liquide Expired - Lifetime EP0250734B1 (fr)

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
DE19863621837 DE3621837A1 (de) 1986-06-28 1986-06-28 Blasenabscheider fuer wassergekuehlte motoren
DE3621837 1986-06-28

Publications (3)

Publication Number Publication Date
EP0250734A2 true EP0250734A2 (fr) 1988-01-07
EP0250734A3 EP0250734A3 (en) 1989-01-04
EP0250734B1 EP0250734B1 (fr) 1990-09-19

Family

ID=6304012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105343A Expired - Lifetime EP0250734B1 (fr) 1986-06-28 1987-04-10 Système de refroidissement dans un véhicule avec un moteur refroidi par liquide

Country Status (6)

Country Link
US (1) US4759499A (fr)
EP (1) EP0250734B1 (fr)
JP (1) JPS639623A (fr)
AT (1) ATE56788T1 (fr)
DE (2) DE3621837A1 (fr)
HU (1) HU199940B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374038B1 (fr) * 1988-12-14 1993-10-13 Automobiles Peugeot Dispositif de refroidissement d'un moteur à combustion interne
WO2008043399A1 (fr) * 2006-10-14 2008-04-17 Daimler Ag Circuit de refroidissement pour automobile
EP2375027A3 (fr) * 2010-02-02 2013-01-09 Vaillant GmbH Récipient d'équilibrage pour circuits de refroidissement

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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 (fr) 2014-10-02 2020-09-30 MTU Friedrichshafen GmbH Système de refroidissement et moteur à combustion interne doté d'un tel système de refroidissement
DE102018007699A1 (de) 2018-10-01 2020-04-02 Truma Gerätetechnik GmbH & Co. KG Vorrichtung zum Erwärmen einer Flüssigkeit

Citations (9)

* Cited by examiner, † Cited by third party
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
FR1579850A (fr) * 1967-09-13 1969-08-29
US3952765A (en) * 1974-12-04 1976-04-27 Shinichi Kimura Device for separating air bubbles of fluids in piping, and silencing water flow
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
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
DE2615729A1 (de) * 1976-04-10 1977-10-20 Daimler Benz Ag Fluessigkeitsgekuehlte brennkraftmaschine
DE2615728A1 (de) * 1976-04-10 1977-10-20 Daimler Benz Ag Fluessigkeitsgekuehlte brennkraftmaschine
US4504396A (en) * 1980-05-15 1985-03-12 Isaih Vardi Purification system

Patent Citations (9)

* Cited by examiner, † Cited by third party
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
FR1579850A (fr) * 1967-09-13 1969-08-29
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
DE2615729A1 (de) * 1976-04-10 1977-10-20 Daimler Benz Ag Fluessigkeitsgekuehlte brennkraftmaschine
DE2615728A1 (de) * 1976-04-10 1977-10-20 Daimler Benz Ag Fluessigkeitsgekuehlte brennkraftmaschine
US4504396A (en) * 1980-05-15 1985-03-12 Isaih Vardi Purification system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374038B1 (fr) * 1988-12-14 1993-10-13 Automobiles Peugeot Dispositif de refroidissement d'un moteur à combustion interne
WO2008043399A1 (fr) * 2006-10-14 2008-04-17 Daimler Ag Circuit de refroidissement pour automobile
EP2375027A3 (fr) * 2010-02-02 2013-01-09 Vaillant GmbH Récipient d'équilibrage pour circuits de refroidissement

Also Published As

Publication number Publication date
ATE56788T1 (de) 1990-10-15
EP0250734A3 (en) 1989-01-04
DE3765026D1 (de) 1990-10-25
DE3621837A1 (de) 1988-01-07
US4759499A (en) 1988-07-26
HU199940B (en) 1990-03-28
JPS639623A (ja) 1988-01-16
HUT49391A (en) 1989-09-28
EP0250734B1 (fr) 1990-09-19

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