EP0177025A2 - Système de refroidissement - Google Patents

Système de refroidissement Download PDF

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Publication number
EP0177025A2
EP0177025A2 EP85112439A EP85112439A EP0177025A2 EP 0177025 A2 EP0177025 A2 EP 0177025A2 EP 85112439 A EP85112439 A EP 85112439A EP 85112439 A EP85112439 A EP 85112439A EP 0177025 A2 EP0177025 A2 EP 0177025A2
Authority
EP
European Patent Office
Prior art keywords
additional
cooler
cooling system
coolant
sections
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.)
Withdrawn
Application number
EP85112439A
Other languages
German (de)
English (en)
Other versions
EP0177025A3 (fr
Inventor
Lawrence Eugene Faylor
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Publication of EP0177025A2 publication Critical patent/EP0177025A2/fr
Publication of EP0177025A3 publication Critical patent/EP0177025A3/fr
Withdrawn legal-status Critical Current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
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • 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
    • 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
    • F01P2060/04—Lubricant cooler
    • 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
    • F01P2060/06—Retarder
    • 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 cooling system with a main and several additional coolers, each associated with a heat source, and with a pump, the additional coolers being connected to both the pump and the main cooler.
  • the main cooler is connected on the output side in parallel to a first additional cooler for the charge air of an internal combustion engine and to a second additional cooler for an air conditioning system.
  • the second additional cooler is followed by a third additional cooler for oil cooling, which supplies coolant to a pump via a line which is also connected to the first additional cooler.
  • This pump conveys the coolant through an engine block of the internal combustion engine and either via the main cooler to the first or second additional cooler or via a calming tank back to an input of the pump.
  • a dividing valve provided on the output side of the engine block always ensures that the auxiliary coolers are supplied with coolant heated by the internal combustion engine even if this is supplied directly to the pump in a short-circuited circuit during the warm-up phase of the internal combustion engine, largely bypassing the main cooler.
  • the flow rate of coolant through the additional coolers depends on the flow resistances inherent in the additional coolers.
  • This cooling system is disadvantageous in that the flow rates of the coolant through the additional cooler cannot be varied.
  • a certain amount of coolant namely that which is supplied to the auxiliary coolers, is passed through the main cooler and is forcibly cooled therein, so that the warm-up phase of the internal combustion engine is delayed.
  • the object underlying the invention is seen in improving the cooling system in such a way that a more flexible design of the flow rates through the individual additional coolers is possible.
  • the main cooler on the output side is divided into several sections to form separate coolant circuits, the additional coolers on the input side are connected to different sections and the output side are connected to the pump via a valve for regulating the flow rate.
  • the flow rate through the additional coolers can be controlled by means of the valve and a coolant backlog built up by the valve into one or more of the sections, which causes coolant to be diverted to another section and thus to another additional cooler.
  • a coolant backflow through the additional cooler concerned is achieved according to an idea further developing the invention in that the valve is provided upstream of at least two additional coolers.
  • bypass line advantageously connects downstream to a line extending between the main cooler and a heat source assigned to it, it is ensured that the coolant supplied to at least one additional cooler during the warm-up phase of the Internal combustion engine does not flow over the main cooler, so that the warm-up phase is kept short.
  • Very favorable cooling processes are achieved when the flow cross sections of the respective sections on the cooling of the additional coolers assigned to them and their cooling temperature range.
  • FIG. 1 shows a water-cooled engine 10, in particular an internal combustion engine, with a cooling jacket (not shown in more detail), to the front end area of which a main cooler 11 is attached.
  • the main cooler 11 has an upper and a lower coolant space 12 and 13.
  • the upper coolant chamber 12 extends completely over the front upper end region of the main cooler 11 and is connected to the engine 10 via a return line 14.
  • the upper and lower coolant spaces 12 and 13 are interconnected by a plurality of vertically extending tubes 15.
  • the lower coolant space 13 is divided into a front and a rear section 16 and 17, the tubes 15 opening partly into the front and partly into the rear section 16 and 17.
  • an impeller 18 which, as indicated by arrows 19, 'cooling air through the main cooler 11, to cool the air flowing through the main radiator coolant.
  • the front section 16 is larger than the rear section 17, in particular the dimensions in the flow direction of the cooling air are different.
  • the engine 10 is used, for example, in industrial equipment or vehicles that have hydraulically operated devices. If hydraulic oil or hydraulic fluid is used for this purpose, they themselves become a heat source and must be cooled in order to maintain their lubricating or other properties. For this reason, a first additional cooler 20 is provided in the cooling system, which has a hydraulic oil inlet 21 and a hydraulic oil outlet 22 for guiding the hydraulic oil through the first additional cooler 20 and to or from the hydraulically operated device or devices.
  • the coolant is conducted from the front section 16 of the lower coolant chamber 13 through a line 23 to the first additional cooler 20.
  • a drain line 24 leads from the first additional cooler 20 to a valve 25, the meaning and purpose of which will be explained further below.
  • a hydraulically operated torque converter is also used in the vehicle, and the hydraulic oil required for this must also be cooled.
  • a second additional cooler 26 is provided which has a hydraulic oil inlet 27 and a hydraulic oil outlet 28, the hydraulic oil inlet 27 receiving hydraulic oil from the torque converter, this flowing through the second additional cooler 26 and being fed back to the torque converter through the hydraulic oil outlet 28.
  • a coolant line 29 extends from the rear section 17 to the second additional cooler for the torque converter, and a coolant line 30 serves to remove the coolant from the second additional cooler 26.
  • the coolant coming from the first additional cooler 20 flows through the valve 25 and through a line 31 and hits the coolant line 30 before flowing into a pump 32.
  • the pump 32 also has an inlet, the Coolant is supplied from the coolant line 30 and the line 31.
  • Most of the coolant flowing through the pump 32 flows into an engine block, not shown in detail, and a cylinder head of the engine 10, also not shown separately, where it is used to cool the engine 10.
  • a part also flows through a line denoted by 34, through this to a third auxiliary cooler 35 and from there via a coolant outlet 36 to the return line 14.
  • the coolant in the engine block and in the cylinder head runs into the return line 14 conventional and therefore not to be described in detail.
  • the third auxiliary cooler 35 has an oil inlet 37, which receives warm oil from an unspecified crankshaft housing of the engine 10 and passes it through the third auxiliary cooler 35 to an oil outlet 38, from where it is fed back to the crankshaft housing.
  • additional coolers 20, 26 and 35 are listed in this exemplary embodiment in addition to the main cooler 11, it can still be seen that further additional coolers can also be provided for further heat sources.
  • additional heat sources could arise where liquid in an air conditioning system has to be cooled. In such an application, it would be a different liquid; however, the coolant used in this cooling system could be used to cool this liquid, even if the cooling would take place at a different cooling temperature level.
  • the valve 25 is used to limit the amount of coolant flowing through the first auxiliary cooler 20 in most cases. This happens in cases where the first Z usatzkühler 20 more refrigerant required as for example, associated with the torque converter second additional radiator 26.
  • a bypass conduit 40 extends from an upper portion to a lower portion of the engine block of the engine 10 and is connected to thehariffenlei device 29, which leads into the second auxiliary cooler 26, connected.
  • thermostats are used in this exemplary embodiment in order to bring the coolant to a certain temperature in a short time. However, when the engine is started, this temperature is not enough to open the thermostat. Thus, the bypass line 40 is used to direct coolant from the engine 10 to the torque converter.
  • the valve 25 serves to direct the flow of coolant through the first auxiliary cooler 20 and to some extent through the second auxiliary cooler 26, since the coolant that is prevented from flowing through the first auxiliary cooler 20 flows into the front portion 16 of FIG lower coolant chamber 13 and finally flows into the upper coolant chamber 12, where it then flows predominantly into the rear section 17 and into the second additional cooler 26.
  • additional auxiliary coolers it would be necessary to provide valves for the additional auxiliary coolers and possibly to divide the lower coolant space 13 into further sections.
  • the separation of the lower coolant chamber 13 into the two sections 16, 17 prevents excessive backflow pressure from one section into the other section 16, 17. If the thermostat is closed during the warm-up time of the internal combustion engine, the pump 32 also causes a suction effect limited coolant flow through the first auxiliary cooler 20 instead.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Processing Of Solid Wastes (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP85112439A 1984-10-05 1985-10-02 Système de refroidissement Withdrawn EP0177025A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US658253 1984-10-05
US06/658,253 US4535729A (en) 1984-10-05 1984-10-05 Vehicle cooling system utilizing one radiator

Publications (2)

Publication Number Publication Date
EP0177025A2 true EP0177025A2 (fr) 1986-04-09
EP0177025A3 EP0177025A3 (fr) 1987-01-21

Family

ID=24640516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112439A Withdrawn EP0177025A3 (fr) 1984-10-05 1985-10-02 Système de refroidissement

Country Status (4)

Country Link
US (1) US4535729A (fr)
EP (1) EP0177025A3 (fr)
JP (1) JPS6189917A (fr)
ES (1) ES8609585A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601313A1 (de) * 1996-01-16 1997-07-17 Bayerische Motoren Werke Ag Heizsystem für ein Fahrzeug mit Wandlerkupplung
EP0860592A1 (fr) 1997-02-20 1998-08-26 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Circuit de refroidissement pour un train moteur de véhicule automobile

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610989B1 (fr) * 1987-02-18 1991-04-19 Valeo Circuit de refroidissement auxiliaire pour vehicule automobile
FR2634546B1 (fr) * 1988-07-20 1991-08-02 Valeo Dispositif d'echangeur de chaleur pour plusieurs circuits de refroidissement utilisant un meme fluide caloporteur
US5526873A (en) * 1989-07-19 1996-06-18 Valeo Thermique Moteur Heat exchanger apparatus for a plurality of cooling circuits using the same coolant
US5056601A (en) * 1990-06-21 1991-10-15 Grimmer John E Air compressor cooling system
FR2684156B1 (fr) * 1991-11-26 1994-01-14 Peugeot Automobiles Dispositif de refroidissement par eau d'une boite de vitesse automatique.
JPH0632149U (ja) * 1992-09-29 1994-04-26 東洋ラジエーター株式会社 自動車用熱交換装置
US5366005A (en) * 1993-06-28 1994-11-22 General Motors Corporation Heat exchanger assembly incorporating a helical coil oil cooler
US5441099A (en) * 1993-08-23 1995-08-15 Ford Motor Company Method and apparatus for forcibly cooling components of an automotive vehicle prior to emission tesing
DE19715324A1 (de) * 1997-04-12 1998-10-15 Bayerische Motoren Werke Ag Wärmetauscher für flüssige Wärmetauschmittel
US6135065A (en) * 1999-04-09 2000-10-24 Caterpillar Inc. Cooling system for a machine
JP2001082590A (ja) * 1999-09-10 2001-03-27 Honda Motor Co Ltd 油圧作動式変速機における油温調整装置
US6530347B2 (en) * 2000-09-18 2003-03-11 Denso Corporation Cooling apparatus for liquid-cooled internal combustion engine
US6427640B1 (en) * 2000-10-11 2002-08-06 Ford Global Tech., Inc. System and method for heating vehicle fluids
US6536381B2 (en) 2001-02-20 2003-03-25 Volvo Trucks North America, Inc. Vehicle lubricant temperature control
JP4491991B2 (ja) * 2001-05-21 2010-06-30 トヨタ自動車株式会社 油温制御装置
EP1447635A1 (fr) * 2003-02-14 2004-08-18 Calsonic Kansei Corporation Echangeur de chaleur pour automobiles
FR2852678B1 (fr) * 2003-03-21 2005-07-15 Valeo Thermique Moteur Sa Systeme de refroidissement a basse temperature d'un equipement, notamment d'un equipement de vehicule automobile, et echangeurs de chaleur associes
US20070089874A1 (en) * 2005-10-24 2007-04-26 Tuntland John E Cooling system for a work machine
US20070095504A1 (en) * 2005-10-24 2007-05-03 Tuntland John E Radiator for a work machine
US7261068B1 (en) * 2006-02-16 2007-08-28 Deere & Company Vehicular thermostatically-controlled dual-circuit cooling system and associated method
US7753105B2 (en) * 2006-05-16 2010-07-13 Delphi Technologies, Inc. Liquid cooled condenser having an integrated heat exchanger
JP5533685B2 (ja) * 2011-01-14 2014-06-25 株式会社デンソー 車両用空調装置
JP5351918B2 (ja) * 2011-03-15 2013-11-27 日立建機株式会社 建設機械
CN102242807A (zh) * 2011-07-08 2011-11-16 奇瑞汽车股份有限公司 一种自动变速箱冷却系统及用于该系统的四通水管
CN103712482B (zh) * 2012-10-02 2017-04-12 马勒国际公司 热交换器
WO2014098656A1 (fr) * 2012-12-21 2014-06-26 Volvo Truck Corporation Système de refroidissement destiné à un véhicule hybride à alimentation mécanique et hydraulique
JP6080630B2 (ja) * 2013-03-19 2017-02-15 株式会社タダノ 作業車両
US20140290923A1 (en) * 2013-04-01 2014-10-02 Caterpillar Inc. Cooling system
DE102014215074B4 (de) 2013-08-28 2021-08-19 Ford Global Technologies, Llc Temperieranordnung für Getriebeöl eines Kraftfahrzeugs sowie Verfahren zum Temperieren von Getriebeöl eines Kraftfahrzeugs
US9796244B2 (en) 2014-01-17 2017-10-24 Honda Motor Co., Ltd. Thermal management system for a vehicle and method
JP6354699B2 (ja) * 2015-08-06 2018-07-11 トヨタ自動車株式会社 熱交換装置
KR20170069089A (ko) * 2015-12-10 2017-06-20 현대자동차주식회사 차량용 라디에이터

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US2063436A (en) * 1931-02-24 1936-12-08 Frederic W Hild Multiflow cooling for internal combustion engines
US2188172A (en) * 1937-01-06 1940-01-23 Gen Electric Heat transfer system
US2435041A (en) * 1945-02-10 1948-01-27 Frederic W Hild Regulating device for cooling systems
DE1206211B (de) * 1963-12-23 1965-12-02 Beteiligungs & Patentverw Gmbh Kuehlanlage fuer motorgetriebene Fahrzeuge, insbesondere dieselhydraulische Lokomotiven
US3863612A (en) * 1973-09-17 1975-02-04 Gen Electric Cooling system
US4000725A (en) * 1975-03-24 1977-01-04 Cummins Engine Company, Inc. Aftercooler coolant flow control for internal combustion engine
FR2341041A1 (fr) * 1976-02-10 1977-09-09 Chausson Usines Sa Dispositif pour la regulation de la temperature d'un moteur diesel suralimente
US4061187A (en) * 1976-04-29 1977-12-06 Cummins Engine Company, Inc. Dual cooling system
FR2443573A1 (fr) * 1978-12-08 1980-07-04 Renault Vehicules Ind Circuit de refroidissement de moteurs suralimentes
US4325219A (en) * 1979-12-31 1982-04-20 Cummins Engine Company, Inc. Two loop engine coolant system
US4362131A (en) * 1980-12-10 1982-12-07 The Garrett Corporation Engine cooling system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601313A1 (de) * 1996-01-16 1997-07-17 Bayerische Motoren Werke Ag Heizsystem für ein Fahrzeug mit Wandlerkupplung
EP0860592A1 (fr) 1997-02-20 1998-08-26 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Circuit de refroidissement pour un train moteur de véhicule automobile
DE19706800A1 (de) * 1997-02-20 1998-08-27 Bayerische Motoren Werke Ag Kühlflüssigkeitskreislauf eines Kraftfahrzeug-Antriebsaggregates

Also Published As

Publication number Publication date
US4535729A (en) 1985-08-20
ES8609585A1 (es) 1986-09-01
EP0177025A3 (fr) 1987-01-21
JPS6189917A (ja) 1986-05-08
ES547607A0 (es) 1986-09-01

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Inventor name: FAYLOR, LAWRENCE EUGENE