EP1900919B1 - Circuit de refroidissement - Google Patents

Circuit de refroidissement Download PDF

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Publication number
EP1900919B1
EP1900919B1 EP06120586A EP06120586A EP1900919B1 EP 1900919 B1 EP1900919 B1 EP 1900919B1 EP 06120586 A EP06120586 A EP 06120586A EP 06120586 A EP06120586 A EP 06120586A EP 1900919 B1 EP1900919 B1 EP 1900919B1
Authority
EP
European Patent Office
Prior art keywords
coolant
thermostat
water jacket
heater
cylinder head
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.)
Not-in-force
Application number
EP06120586A
Other languages
German (de)
English (en)
Other versions
EP1900919A1 (fr
Inventor
Jan Mehring
Bernd Steiner
Bernd Harbolla
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.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to DE502006009008T priority Critical patent/DE502006009008D1/de
Priority to EP06120586A priority patent/EP1900919B1/fr
Priority to US11/853,067 priority patent/US20080060592A1/en
Publication of EP1900919A1 publication Critical patent/EP1900919A1/fr
Application granted granted Critical
Publication of EP1900919B1 publication Critical patent/EP1900919B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/021—Cooling cylinders
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/024—Cooling cylinder heads
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/028—Cooling cylinders and cylinder heads in series
    • 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 separate coolant circuit of an internal combustion engine, wherein a cylinder head water jacket and an engine block water jacket is provided, wherein the separate coolant circuit comprises a pump, a radiator, a thermostat and a heater, and wherein circulates in the separate coolant circuit, a coolant, the thermostat arranged in such a way in that it controls a flow of the coolant through the engine block water jacket and through the radiator simultaneously when the coolant exceeds a predetermined temperature.
  • the DE 103 42 935 A1 z. B. is an internal combustion engine with a cooling circuit with at least a first coolant channel and at least one second coolant channel, which is connected in parallel with the first coolant channel. Furthermore, the internal combustion engine has throttling means assigned to the coolant channels for influencing the coolant flow passing through the coolant channels, and a mechanically drivable coolant pump for circulating the coolant through the coolant channels. Control means are provided which provide manipulated variables for the individual control of the throttling means.
  • the DE 195 24 424 A1 relates to a liquid cooling of an internal combustion engine with a cooling liquid flow through a cooling liquid circuit in which a cooling liquid flowed through by the cooling chamber of the internal combustion engine, a cooler for the cooling liquid, a cooling liquid circulating pump and a thermostatically controlled valve is provided which at a low coolant temperature, the cooling liquid flow through the cooling space of the internal combustion engine at a low coolant temperature reduces the coolant flow through the radiator below the value of the coolant flow through the cooling chamber of the internal combustion engine.
  • a load sensor of the internal combustion engine which counteracts the reduction of the cooling liquid flow through the cooling space of the internal combustion engine at a high load of the internal combustion engine.
  • a heating heat exchanger connected to the cooling liquid circuit and an adjusting means may be provided which counteracts the reduction of the cooling liquid flow through the radiator when operating and / or increasing an operation of the heating heat exchanger.
  • the DE 102 61 070 A1 discloses a water jacket structure for a cylinder head and a cylinder block of an engine having a split cooling system adapted therein.
  • the water jackets for the cylinder head and the cylinder block are respectively and independently formed with an inlet shared between the cylinder head and the cylinder block. Its cross-sectional area is reduced to the inside, wherein positions of two outlets are shifted to the cylinder head.
  • the JP 0 828 873 discloses a separate coolant circuit with two thermostats and a heater.
  • the heater is located between the cylinder head water jacket and a thermostat. Between the cylinder block water jacket and the same thermostat, a bypass line is arranged.
  • KR 1020040033579 A discloses a split-cooling system, wherein a thermostat housing is designed as a single object and is arranged at a rear end of the internal combustion engine.
  • the DE 102 19 481 A1 is concerned with an internal combustion engine with a cylinder crankcase and a cylinder head, with a cooling water circuit with a cylinder head between an inlet opening and an outlet opening extending formed first water jacket and a separately thereof in the cylinder crankcase between an inlet opening and an outlet opening extending second cooling water channel and with a in the Cooling water circuit arranged, common cooling water pump.
  • a third cooling water channel connects the outlet opening of the first cooling water channel formed in the cylinder head with the inlet opening of the cooling water pump.
  • a fourth cooling water channel connects the outlet opening of the cooling water pump to the inlet opening of the second cooling water channel formed in the cylinder crankcase for passing the cooling water from the first into the second cooling water channel.
  • DE 196 28 542 A1 deals with a split-cooling system, wherein the cylinder head or the cylinder heads are cooled by a cooling water circuit, which runs only through the cylinder head and in which a cooling water pump is inserted.
  • the DE 34 40 504 C2 with the split-cooling system or separate coolant circuits for a cylinder block and the engine block.
  • the EP 0 816 651 B1 addresses the problem of providing a device which can reduce the heat-up time of an exhaust line and at the same time quickly raise and maintain the temperature of the walls of the engine block at a low load to a sufficient value, in any case to improve the operating conditions of the engine in all operating conditions .
  • the EP 0 816 651 B1 a device for the An internal combustion engine comprising a cylinder block and a cylinder head whose walls are designed to define a first part and a second part different therefrom and the same cooling circuit separated by said walls.
  • the EP 1 239 129 A2 deals with a simple cooling system for cooling the internal combustion engine.
  • the FR 2 860 833 A1 discloses a refrigeration cycle of an internal combustion engine having at least one cylinder head and a cylinder housing consisting of at least three cooling passages.
  • the circuit includes heat exchange means, a heat exchange medium drive means, and at least one heat exchange medium flow control means through the cylinder head, the cylinder housing, or the heat exchange means.
  • the refrigeration cycle has at least three independent passages for engine cooling, wherein the first and second passages are disposed in the cylinder head and the third passage is disposed in the cylinder housing, and wherein the passages are independent from each other and include at least one inlet and one outlet such that they allow independent flow of the heat exchange medium through each of the passages of the cylinder head and the cylinder housing.
  • the FR 2 860 833 A1 discloses that three control means are provided to control various circulations of the heat exchange medium can. Of the control means in each case one inlet side and one outlet side is arranged. The third control means is connected to the respective other two control means.
  • the US 5,385,123 discloses a separate coolant circuit with a single thermostat, which is arranged in one embodiment in an outlet line of the outlet side of a cylinder head to a pump, the line opens inlet side in the cylinder head. From the outlet line branches off a bypass and a block line, which opens in the cylinder block. The bypass leads to the pump.
  • the thermostat is arranged in this embodiment in the branch of the three lines. During the warm-up phase, the thermostat closes the block line with the bypass fully open. When the thermostat is open, the coolant flows through the bypass to the pump and from there into the cylinder head. As the coolant temperature increases, the thermostat gradually closes the bypass, so that the direct flow towards the pump is continuously reduced, and is completely interrupted when the bypass is fully closed. The coolant then flows out of the cylinder head through the exhaust pipe and the block pipe into the cylinder block which is connected to a radiator and from there to the pump.
  • a conventional cooling system 1 is in the FIGS. 1 and 2 shown.
  • the conventional cooling system 1 has both a cylinder head water jacket 2 and an engine block water jacket 3, a pump 4, a radiator 6 (FIG. FIG. 2 ), a thermostat 7 and a heater 8.
  • the coolant circuit 1 can have degassing devices 9 and of course connecting lines 11 to the individual components.
  • the coolant flows through the pump 4, through the two water jackets 2, 3, the heater 8 and the thermostat 7, wherein the respective components are connected in series with each other.
  • a specific cooling temperature of for example 90 ° C the coolant flows through the pump 4, through the two water jackets 2, 3, the heater 8 and the thermostat 7, wherein the respective components are connected in series with each other.
  • FIG. 1 shown as a representation of the known prior art.
  • the thermostat 7 opens, so that the coolant additionally flows through the radiator 6 in parallel with the heater 8.
  • the specific temperature for opening the thermostat is set or predetermined at 90 ° C, this temperature is of course not limited to the amount mentioned, but of course may have other amounts.
  • the invention has for its object to improve a separate coolant circuit of the type mentioned by simple means so that the warm-up phase of the engine block is significantly reduced.
  • the individual components of the separate coolant circuit are interconnected in comparison to the prior art, of different types, so that the heat output from the engine block during its warm-up phase is considerably reduced.
  • the advantageous embodiment of the coolant circuit according to the invention combines the advantages of the separate coolant circuit (rapid warm-up), whereby the fuel consumption and the generation of harmful emissions are significantly reduced, but also the life of the internal combustion engine is extended or increased.
  • the same components can be used as in the conventional coolant circuit.
  • the thermostat is arranged in the flow direction of the coolant between the engine and the heater.
  • the thermostat is connected via a connecting line to the engine block water jacket, wherein the engine block water jacket is conveniently connected to the radiator.
  • the heater is connected to the pump, it is expediently provided that the radiator is connected to a connecting line of the heater to the pump.
  • thermostat simultaneously controls the flow of coolant through both the radiator and the engine block water jacket, the thermostat can be advantageously designed as a single-acting thermostat.
  • FIG. 1 and 2 were already dealt with in the assessment of the state of the art.
  • the Figures 3 and 4 show a separate coolant circuit 16 ("split-cooling system") of an internal combustion engine 17, wherein a cylinder head water jacket 18 and an engine block water jacket 19 (FIG. FIG. 4 ) is provided.
  • the separate coolant circuit 16 has a pump 21, a radiator 22, a thermostat 23 and a heater 24, wherein in the separate coolant circuit 16, a coolant circulates.
  • the thermostat 23 is arranged to simultaneously control a flow of the coolant through the engine block water jacket 19 and through the radiator 22 when the coolant exceeds a predetermined temperature ( FIG. 4 ).
  • the predetermined temperature should be 90 ° C in the illustrated embodiments, so that the thermostat is closed below a coolant temperature of 90 ° C ( FIG. 3 ) and opened above a coolant temperature of 90 ° C. is ( FIG. 4 ).
  • the indicated coolant temperature is given by way of example only, and is not intended to be limiting.
  • the thermostat 23 is disposed between the engine 17 and the heater 24.
  • the heater 24 is connected via a connecting line 26 to the pump 21, which is connected via a connecting line 27 to the engine 17. Again FIG. 3 can be seen, the coolant flows from the pump 21, starting directly into the cylinder head water jacket 18 and is supplied from there via a connecting line 28 to the thermostat 23.
  • the thermostat 23 is designed as a single-acting thermostat so that it is closed at a coolant temperature below the exemplified 90 ° C, which means that the coolant is fed through the thermostat 23 directly to the heater 24, which of course also a connecting line 29th is provided. It is easily conceivable that a warm-up phase of the internal combustion engine 17 can be significantly reduced by this arrangement, since the engine block is not initially cooled.
  • the thermostat 23 opens to a connecting line 32, which is connected to the engine block water jacket 19 ( FIG. 4 ).
  • the coolant flows like the FIG. 4 can be seen, by the thermostat 23 so both to the heater 24 and to the engine block water jacket 19.
  • the coolant flows via a connecting line 33 to the radiator 22, wherein the coolant is cooled here similar to the heater 24.
  • the radiator 22 is connected via a connecting line 34 with the connecting line 26 of the heater 24 to the pump 21, wherein the connecting line 34 opens into the connecting line 26.
  • FIG. 4 Next is the FIG. 4 can be seen that the degassing device 31 with the connecting line 32 of the thermostat 23 to the engine block water jacket 19 and on the other hand with the connecting line 26 of the heater 24 is connected to the pump 21.
  • the warm-up of the engine is considerably shortened, this effect using known components surprisingly by a different arrangement of the components, in particular the thermostat 23, which is advantageously designed as a low-cost, single-acting thermostat is achieved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (3)

  1. Circuit de réfrigérant séparé d'un moteur à combustion interne (17), une chemise d'eau de culasse (18) et une chemise d'eau du bloc moteur (19) étant prévues, le circuit de réfrigérant séparé (16) présentant une pompe (21), un radiateur (22), un thermostat unique (23) et un chauffage (24), et un réfrigérant circulant dans le circuit de réfrigérant séparé (16), le thermostat (23) étant disposé de telle sorte qu'il commande simultanément un écoulement du réfrigérant à travers la chemise d'eau du bloc moteur (19) et à travers le radiateur (22), quand le réfrigérant dépasse une température prédéfinie,
    caractérisé en ce que
    le thermostat (23), vu dans la direction d'écoulement du réfrigérant, est disposé entre le moteur à combustion interne (17) et le chauffage (24), qui est connecté par le biais d'une conduite de connexion (26) à la pompe (21), le radiateur (22) étant connecté grâce à la conduite de connexion (26) du chauffage (24) à la pompe (21), et le réfrigérant étant acheminé en s'écoulant hors de la chemise d'eau de la culasse (18) à travers le thermostat (23) uniquement au chauffage (24), quand le réfrigérant présente une valeur de température en dessous de la température prédéfinie, et le réfrigérant s'écoulant à travers le thermostat (23) à la fois vers le chauffage (24) et vers la chemise d'eau du bloc moteur (19), hors de laquelle le réfrigérant s'écoule par le biais d'une conduite de connexion (33) vers le radiateur (22) quand le réfrigérant dépasse la température prédéfinie.
  2. Circuit de réfrigérant séparé selon la revendication 1,
    caractérisé en ce que
    le thermostat (23) est connecté par le biais d'une conduite de connexion (32) à la chemise d'eau du bloc moteur (19).
  3. Circuit de réfrigérant séparé selon la revendication 1 ou 2,
    caractérisé en ce que
    le thermostat (23) est réalisé sous forme de thermostat à fonction simple.
EP06120586A 2006-09-13 2006-09-13 Circuit de refroidissement Not-in-force EP1900919B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502006009008T DE502006009008D1 (de) 2006-09-13 2006-09-13 Kühlmittelkreislauf
EP06120586A EP1900919B1 (fr) 2006-09-13 2006-09-13 Circuit de refroidissement
US11/853,067 US20080060592A1 (en) 2006-09-13 2007-09-11 Split Cooling System for an Internal Combustion Engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06120586A EP1900919B1 (fr) 2006-09-13 2006-09-13 Circuit de refroidissement

Publications (2)

Publication Number Publication Date
EP1900919A1 EP1900919A1 (fr) 2008-03-19
EP1900919B1 true EP1900919B1 (fr) 2011-03-02

Family

ID=37110349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06120586A Not-in-force EP1900919B1 (fr) 2006-09-13 2006-09-13 Circuit de refroidissement

Country Status (3)

Country Link
US (1) US20080060592A1 (fr)
EP (1) EP1900919B1 (fr)
DE (1) DE502006009008D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562379A1 (fr) 2011-08-23 2013-02-27 Ford Global Technologies, LLC Circuit d'agent réfrigérant
EP2562378A1 (fr) 2011-08-23 2013-02-27 Ford Global Technologies, LLC Stratégie de fonctionnement d'un circuit d'agent réfrigérant séparé
US8739745B2 (en) 2011-08-23 2014-06-03 Ford Global Technologies, Llc Cooling system and method
DE102014004009A1 (de) 2014-03-20 2015-12-03 Daimler Ag Kühlmittelkreislauf zum Kühlen einer Verbrennungskraftmaschine, insbesondere für einen Kraftwagen, sowie Verfahren zum Betreiben eines solchen Kühlmittelkreislaufs
CN112065565A (zh) * 2020-09-15 2020-12-11 奇瑞汽车股份有限公司 节温器总成、冷却系统、发动机和汽车

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US9849753B2 (en) * 2008-05-16 2017-12-26 GM Global Technology Operations LLC Heating system for an automotive vehicle
DE102009001129B4 (de) * 2009-02-25 2014-07-10 Ford Global Technologies, Llc Kühlstrategie für Verbrennungsmotoren
DE102009054814B4 (de) * 2009-12-17 2013-11-28 Ford Global Technologies, Llc Verfahren zur Optimierung eines Thermomanagements in einem Kraftfahrzeug
DE102010002082B4 (de) 2010-02-18 2013-09-19 Ford Global Technologies, Llc Separat gekühlter Abgassammler zur Aufrechterhaltung einer No-Flow Strategie des Zylinderblockkühlmittelmantels
EP2392794B1 (fr) 2010-06-07 2019-02-27 Ford Global Technologies, LLC Turbosoufflante refroidie séparément pour le maintien d'une stratégie sans écoulement d'une enveloppe de réfrigérant à bloc cylindre
US8991339B2 (en) 2012-03-30 2015-03-31 Ford Global Technologies, Llc Multi-zone vehicle radiators
AT513175B1 (de) * 2012-07-26 2014-10-15 Avl List Gmbh Flüssigkühlsystem für eine Brennkraftmaschine eines Fahrzeuges
US9758171B2 (en) * 2015-06-15 2017-09-12 GM Global Technology Operations LLC Method and apparatus for controlling a multi-mode powertrain system including an engine having stop/start capability
CN105673179B (zh) * 2016-03-22 2018-04-20 浙江大学 一种基于分体冷却及反向冷却的发动机智能冷却系统试验台及试验方法
JP6897347B2 (ja) * 2017-06-08 2021-06-30 スズキ株式会社 エンジンの冷却用オイル通路構造
US10538214B2 (en) * 2017-11-15 2020-01-21 Denso International America, Inc. Controlled in-tank flow guide for heat exchanger
CN108049956B (zh) * 2017-12-08 2024-01-23 重庆小康工业集团股份有限公司 发动机冷却系统
DE102018218871A1 (de) 2018-11-06 2020-05-07 Ford Global Technologies, Llc Anordnung und Verfahren zur Verringerung der Kondensatbildung in einem Zuluftstrang eines Verbrennungsmotors sowie Kraftfahrzeug
CN111963294B (zh) * 2020-07-23 2024-05-10 广西玉柴机器股份有限公司 一种高效混动发动机冷却系统
CN115839272B (zh) * 2022-12-07 2025-06-27 河南坤宇无人机科技有限公司 一种航空重油活塞发动机系统

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DE10219481A1 (de) * 2002-04-30 2003-11-20 Audi Ag Verbrennungsmotor mit einem Zylinderkurbelgehäuse, mit einem Zylinderkopf und miteinem Kühlwasserkreislauf und Verfahren zum getrennten Kühlen des Zylinderkurbelgehäuses und des Zylinderkopfs, mit einem Kühlwasserkreislauf und einer gemeinsamen Kühlwasserpumpe
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562379A1 (fr) 2011-08-23 2013-02-27 Ford Global Technologies, LLC Circuit d'agent réfrigérant
EP2562378A1 (fr) 2011-08-23 2013-02-27 Ford Global Technologies, LLC Stratégie de fonctionnement d'un circuit d'agent réfrigérant séparé
US8739745B2 (en) 2011-08-23 2014-06-03 Ford Global Technologies, Llc Cooling system and method
DE102014004009A1 (de) 2014-03-20 2015-12-03 Daimler Ag Kühlmittelkreislauf zum Kühlen einer Verbrennungskraftmaschine, insbesondere für einen Kraftwagen, sowie Verfahren zum Betreiben eines solchen Kühlmittelkreislaufs
DE102014004009B4 (de) * 2014-03-20 2025-12-31 Mercedes-Benz Group AG Kühlmittelkreislauf zum Kühlen einer Verbrennungskraftmaschine, insbesondere für einen Kraftwagen, sowie Verfahren zum Betreiben eines solchen Kühlmittelkreislaufs
CN112065565A (zh) * 2020-09-15 2020-12-11 奇瑞汽车股份有限公司 节温器总成、冷却系统、发动机和汽车
CN112065565B (zh) * 2020-09-15 2021-11-30 奇瑞汽车股份有限公司 节温器总成、冷却系统、发动机和汽车

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Publication number Publication date
EP1900919A1 (fr) 2008-03-19
US20080060592A1 (en) 2008-03-13
DE502006009008D1 (de) 2011-04-14

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