EP2795078B1 - Dispositif et procédé pour refroidissement d'agent de refroidissement dans un système de refroidissement dans un véhicule - Google Patents

Dispositif et procédé pour refroidissement d'agent de refroidissement dans un système de refroidissement dans un véhicule Download PDF

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Publication number
EP2795078B1
EP2795078B1 EP12860999.7A EP12860999A EP2795078B1 EP 2795078 B1 EP2795078 B1 EP 2795078B1 EP 12860999 A EP12860999 A EP 12860999A EP 2795078 B1 EP2795078 B1 EP 2795078B1
Authority
EP
European Patent Office
Prior art keywords
coolant
cooling circuit
cooling
temperature
radiator
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
EP12860999.7A
Other languages
German (de)
English (en)
Other versions
EP2795078A4 (fr
EP2795078A1 (fr
Inventor
Zoltan Kardos
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.)
Scania CV AB
Original Assignee
Scania CV AB
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 Scania CV AB filed Critical Scania CV AB
Publication of EP2795078A1 publication Critical patent/EP2795078A1/fr
Publication of EP2795078A4 publication Critical patent/EP2795078A4/fr
Application granted granted Critical
Publication of EP2795078B1 publication Critical patent/EP2795078B1/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
    • 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
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • 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
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
    • F01P2003/182—Arrangements or mounting of liquid-to-air heat-exchangers with multiple heat-exchangers
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/32—Engine outcoming fluid temperature
    • 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
    • F01P2060/14—Condenser

Definitions

  • the coolant which has been cooled in the second radiator slows the coolant temperature rise in the first cooling circuit more than it cools the coolant to a temperature below the initial temperature at which it initially begins to be cooled.
  • the coolant temperature in the first cooling circuit is thus prevented from oscillating about the initial temperature.
  • the second radiator will therefore not be subject frequently to thermal stresses caused by warm coolant from the first cooling circuit being intermittently led to the second cooling circuit. In this operating state no coolant will thus be led to the first radiator, which will therefore not be subject to thermal stresses caused by rapid temperature changes.
  • said flow means have the possibility of transferring and not transferring coolant from the first cooling circuit to the second cooling circuit in various operating situations where the coolant in the first cooling circuit is above the thermostat's regulating temperature.
  • operating situations which require an extra-large cooling capacity, as when the engine is under heavy load or a retarder is activated, it is appropriate to use both the first radiator and the second radiator to cool the coolant in the first cooling circuit.
  • the second cooling circuit needs to be able to operate separately and cool components and/or media intended to be cooled by it.
  • a continuous coolant flow is in this case led to the second radiator 20 and is therefore not subject to any large thermal stresses caused by rapid temperature changes.
  • the first radiator 13 will also be at a substantially constant temperature when not receiving any coolant at all and will therefore likewise not be subject to any large thermal stresses caused by rapid temperature changes.
  • the engine is therefore cooled by the coolant in the first cooling circuit, and the media in the heat exchangers 26, 27 by the coolant in the second cooling circuit.
  • the coolant in the second cooling circuit will be at a clearly lower temperature than that in the first cooling circuit.
  • the media in the heat exchangers 26, 27 can be cooled to close to the temperature of the surroundings.
  • the thermostat thus has a significantly higher regulating temperature t 2 than a conventional thermostat with a regulating temperature corresponding to the initial temperature t 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (7)

  1. Système de refroidissement destiné à un véhicule, lequel système de refroidissement comprend un premier circuit de refroidissement pour refroidir un moteur à combustion (2), comprenant une première pompe d'agent de refroidissement (11) pour faire circuler l'agent de refroidissement à travers le premier circuit de refroidissement, un premier radiateur (13) pour refroidir l'agent de refroidissement, et un thermostat (12) qui s'ouvre pour diriger l'agent de refroidissement vers le premier radiateur (13) lorsque l'agent de refroidissement est à une température supérieure à la température de régulation (t2) du thermostat, un second circuit de refroidissement qui comprend un second radiateur (20) pour refroidir l'agent de refroidissement et des moyens d'écoulement comprenant un moyen formant soupape (23) qui, dans une première position, dirige l'agent de refroidissement du premier circuit de refroidissement vers le second circuit de refroidissement et, dans une seconde position, empêche l'agent de refroidissement de passer du premier circuit de refroidissement au second circuit de refroidissement, lesdits moyens d'écoulement comprenant une unité de commande (29) qui est adaptée pour recevoir des informations d'un capteur de température (30) qui détecte la température de l'agent de refroidissement à un endroit dans le premier circuit de refroidissement, caractérisé en ce que ladite unité de commande (29) est adaptée pour amener le moyen formant soupape (23) dans la seconde position lorsque l'agent de refroidissement dans le premier circuit de refroidissement est à une température inférieure à la température la plus basse (t1) à laquelle l'agent de refroidissement nécessite initialement un refroidissement, qui est inférieure à la température de régulation (t2) du thermostat, et dans la première position lorsque l'agent de refroidissement dans le premier circuit de refroidissement se situe dans une plage de température définie par une température la plus basse (t1) à laquelle l'agent de refroidissement nécessite initialement un refroidissement et une température la plus élevée qui est égale à la température de régulation (t2) du thermostat.
  2. Système de refroidissement selon la revendication 1, caractérisé en ce que le second circuit de refroidissement comprend une seconde pompe (28) d'agent de refroidissement et en ce que l'unité de commande (29) est adaptée pour commander l'activation de la seconde pompe (28) d'agent de refroidissement.
  3. Système de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens d'écoulement (23, 29) ont la possibilité de transférer et de ne pas transférer l'agent de refroidissement du premier circuit de refroidissement au second circuit de refroidissement dans diverses situations de fonctionnement où l'agent de refroidissement dans le premier circuit de refroidissement est à une température supérieure à la température de régulation (t2) du thermostat.
  4. Système de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que le second circuit de refroidissement comprend une conduite de liaison (21 a) par l'intermédiaire de laquelle l'agent de refroidissement peut être acheminé du premier circuit de refroidissement au second circuit de refroidissement, et une conduite de liaison (21 b) par l'intermédiaire de laquelle l'agent de refroidissement peut être renvoyé au premier circuit de refroidissement à partir du second circuit de refroidissement après être passé de nouveau à travers le second radiateur (20).
  5. Système de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier radiateur (13) et le second radiateur (20) sont refroidis par air.
  6. Système de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier radiateur et le second radiateur (20) sont situés dans des régions du véhicule (1) telles que, dans sensiblement toutes les conditions de fonctionnement, le second radiateur est refroidi par de l'air qui est à une température inférieure au premier radiateur (13).
  7. Procédé de refroidissement d'un agent de refroidissement dans un système de refroidissement d'un véhicule, lequel système de refroidissement comprend un premier circuit de refroidissement pour refroidir un moteur à combustion (2), comprenant une première pompe d'agent de refroidissement (11) pour faire circuler l'agent de refroidissement à travers le premier circuit de refroidissement, un premier radiateur (13) pour refroidir l'agent de refroidissement, et un thermostat (12) qui s'ouvre pour diriger l'agent de refroidissement vers le premier radiateur (13) lorsque l'agent de refroidissement est à une température supérieure à la température de régulation (t2) du thermostat, un second circuit de refroidissement qui comprend un second radiateur (20) pour refroidir l'agent de refroidissement et des moyens d'écoulement comprenant un moyen formant soupape (23) qui, dans une première position, dirige l'agent de refroidissement du premier circuit de refroidissement vers le second circuit de refroidissement et, dans une seconde position, empêche l'agent de refroidissement de passer du premier circuit de refroidissement au second circuit de refroidissement, le procédé comprenant l'étape qui consiste à recevoir des informations d'un capteur de température (30) qui détecte la température de l'agent de refroidissement à un endroit dans le premier circuit de refroidissement, caractérisé en ce que l'étape consistant à amener le moyen formant soupape (23) dans la seconde position lorsque l'agent de refroidissement dans le premier circuit de refroidissement est à une température inférieure à la température la plus basse (t1) à laquelle l'agent de refroidissement nécessite initialement un refroidissement, qui est inférieure à la température de régulation (t2) du thermostat et dans la première position lorsque l'agent de refroidissement dans le premier circuit de refroidissement se situe dans une plage de température définie par une température (t1) la plus basse à laquelle l'agent de refroidissement nécessite initialement un refroidissement et une température la plus élevée qui est égale à la température de régulation (t2) du thermostat.
EP12860999.7A 2011-12-23 2012-12-03 Dispositif et procédé pour refroidissement d'agent de refroidissement dans un système de refroidissement dans un véhicule Not-in-force EP2795078B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1151273A SE536283C2 (sv) 2011-12-23 2011-12-23 Arrangemang och förfarande för att kyla kylvätska i ett kylsystem i ett fordon
PCT/SE2012/051334 WO2013095262A1 (fr) 2011-12-23 2012-12-03 Dispositif et procédé pour refroidissement d'agent de refroidissement dans un système de refroidissement dans un véhicule

Publications (3)

Publication Number Publication Date
EP2795078A1 EP2795078A1 (fr) 2014-10-29
EP2795078A4 EP2795078A4 (fr) 2015-09-09
EP2795078B1 true EP2795078B1 (fr) 2017-03-01

Family

ID=48668959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12860999.7A Not-in-force EP2795078B1 (fr) 2011-12-23 2012-12-03 Dispositif et procédé pour refroidissement d'agent de refroidissement dans un système de refroidissement dans un véhicule

Country Status (9)

Country Link
US (1) US20140326443A1 (fr)
EP (1) EP2795078B1 (fr)
JP (1) JP2015502497A (fr)
KR (1) KR20140109437A (fr)
CN (1) CN104011343A (fr)
BR (1) BR112014012865A2 (fr)
RU (1) RU2014130262A (fr)
SE (1) SE536283C2 (fr)
WO (1) WO2013095262A1 (fr)

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Also Published As

Publication number Publication date
SE1151273A1 (sv) 2013-06-24
RU2014130262A (ru) 2016-02-20
WO2013095262A1 (fr) 2013-06-27
EP2795078A4 (fr) 2015-09-09
BR112014012865A2 (pt) 2017-06-13
KR20140109437A (ko) 2014-09-15
US20140326443A1 (en) 2014-11-06
SE536283C2 (sv) 2013-07-30
JP2015502497A (ja) 2015-01-22
EP2795078A1 (fr) 2014-10-29
CN104011343A (zh) 2014-08-27

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