EP2795078B1 - Anordnung und verfahren zur kühlung eines kühlmittels in einem kühlsystem in einem fahrzeug - Google Patents

Anordnung und verfahren zur kühlung eines kühlmittels in einem kühlsystem in einem fahrzeug 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
English (en)
French (fr)
Other versions
EP2795078A4 (de
EP2795078A1 (de
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
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Filing date
Publication date
Application filed by Scania CV AB filed Critical Scania CV AB
Publication of EP2795078A1 publication Critical patent/EP2795078A1/de
Publication of EP2795078A4 publication Critical patent/EP2795078A4/de
Application granted granted Critical
Publication of EP2795078B1 publication Critical patent/EP2795078B1/de
Not-in-force 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
    • 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. Kühlsystem für ein Kraftfahrzeug, wobei das Kühlsystem umfasst einen ersten Kühlkreislauf zum Kühlen eines Verbrennungsmotors (2), der eine erste Kühlmittelpumpe (11), um Kühlmittel durch den ersten Kühlkreislauf zirkulieren zu lassen, einen ersten Kühler (13), um Kühlmittel zu kühlen, und einen Thermostat (12) umfasst, der sich öffnet, um Kühlmittel zu dem ersten Kühler (13) zu leiten, wenn das Kühlmittel über der Regulierungstemperatur (T2) des Thermostats liegt, einen zweiten Kühlkreislauf, der einen zweiten Kühler (20) zum Kühlen des Kühlmittels und Strömungsmittel umfasst, die ein Ventilmittel (23) umfassen, das in einer ersten Position Kühlmittel von dem ersten Kühlkreislauf zu dem zweiten Kühlkreislauf leitet und in einer zweiten Position verhindert, dass von dem ersten Kühlkreislauf zu dem zweiten Kühlkreislauf Kühlmittel gelangt, wobei die Strömungsmittel eine Steuereinheit (29) umfassen, die dazu ausgebildet ist, Informationen von einem Temperatursensor (30) zu empfangen, der die Temperatur des Kühlmittels an einer Stelle in dem ersten Kühlkreislauf ermittelt, dadurch gekennzeichnet, dass die Steuereinheit (29) dazu ausgebildet ist, das Ventilmittel (23) in die zweite Position zu bringen, wenn das Kühlmittel in dem ersten Kühlkreislauf bei einer Temperatur unterhalb der geringsten Temperatur (T1) liegt, an der das Kühlmittel zunächst Kühlung benötigt, die geringer als die Regulierungstemperatur (T2) des Thermostats ist, und in die erste Position zu bringen, wenn das Kühlmittel in dem ersten Kühlkreislauf innerhalb eines Temperaturbereichs liegt, der durch die geringste Temperatur (T1) definiert ist, bei der ein Kühlmittel zunächst Kühlung benötigt, und eine höchste Temperatur, die der Regulierungstemperatur (T2) des Thermostats entspricht.
  2. Kühlsystem nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Kühlkreislauf eine zweite Kühlpumpe (28) umfasst, und dass die Steuereinheit (29) dazu ausgebildet ist, die Aktivierung der zweiten Kühlpumpe (28) zu steuern.
  3. Kühlsystem nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Strömungsmittel (23, 29) die Möglichkeit aufweisen, Kühlmittel von dem ersten Kühlkreislauf zu dem zweiten Kühlkreislauf in mehreren Betriebssituationen zu übertragen und nicht zu übertragen, wobei das Kühlmittel in dem ersten Kühlkreislauf bei einer Temperatur über der Regelungstemperatur (T2) des Thermostats liegt.
  4. Kühlsystem nach einem der vorherigen Ansprüche, dadurch gekennzeichnet dass der zweite Kühlkreislauf eine Verbindungsleitung (21a), über die Kühlmittel von dem ersten Kühlkreislauf zu dem zweiten Kühlkreislauf leitbar ist, und eine Verbindungsleitung (21b) umfasst, über die Kühlmittel von dem zweiten Kühlkreislauf zurück zu dem ersten Kühlkreislauf leitbar ist, nachdem es den zweiten Kühler (20) wieder durchströmt hat.
  5. Kühlsystem nach einem der vorherigen Ansprüche, dadurch gekennzeichnet dass der erste Kühler (13) und der zweite Kühler (20) luftgekühlt sind.
  6. Kühlsystem nach einem der vorherigen Ansprüche, dadurch gekennzeichnet dass der erste Kühler und der zweite Kühler (20) in Bereichen des Kraftfahrzeugs (1) angeordnet sind, so dass im Wesentlichen alle Betriebszustände des zweiten Kühlers, die eine geringere Temperatur als der ersten Kühler (13) aufweisen, durch Luft gekühlt sind.
  7. Verfahren zum Kühlen eines Kühlmittels in einem Kühlsystem in einem Kraftfahrzeug, wobei das Kühlsystem umfasst einen ersten Kühlkreislauf zum Kühlen eines Verbrennungsmotors (2), der eine erste Kühlmittelpumpe (11), um Kühlmittel durch den ersten Kühlkreislauf zirkulieren zu lassen, einen ersten Kühler (13), um Kühlmittel zu kühlen, und einen Thermostat (12) umfasst, der sich öffnet, um Kühlmittel zu dem ersten Kühler (13) zu leiten, wenn das Kühlmittel über der Regulierungstemperatur (T2) des Thermostats liegt, einen zweiten Kühlkreislauf, der einen zweiten Kühler (20) zum Kühlen des Kühlmittels und Strömungsmittel umfasst, die ein Ventilmittel (23) umfassen, das in einer ersten Position Kühlmittel von dem ersten Kühlkreislauf zu dem zweiten Kühlkreislauf leitet und in einer zweiten Position verhindert, dass von dem ersten Kühlkreislauf zu dem zweiten Kühlkreislauf Kühlmittel gelangt, wobei das Verfahren den Schritt Empfangen von Informationen von einem Temperatursensor (30) umfasst, der die Temperatur des Kühlmittels an einer Stelle in dem ersten Kühlkreislauf ermittelt, gekennzeichnet durch den Schritt Bringen des Ventilmittels (23) in die zweite Position, wenn das Kühlmittel in dem ersten Kühlkreislauf bei einer Temperatur unterhalb der geringsten Temperatur (T1) liegt, an der das Kühlmittel zunächst Kühlung benötigt, die geringer als die Regulierungstemperatur (T2) des Thermostats ist, und in die erste Position, wenn das Kühlmittel in dem ersten Kühlkreislauf innerhalb eines Temperaturbereichs liegt, der durch die geringste Temperatur (T1) definiert ist, bei der ein Kühlmittel zunächst Kühlung benötigt und eine höchste Temperatur, die der Regulierungstemperatur (T2) des Thermostats entspricht.
EP12860999.7A 2011-12-23 2012-12-03 Anordnung und verfahren zur kühlung eines kühlmittels in einem kühlsystem in einem fahrzeug Not-in-force EP2795078B1 (de)

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 (en) 2011-12-23 2012-12-03 Arrangement and method for cooling of coolant in a cooling system in a vehicle

Publications (3)

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

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ID=48668959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12860999.7A Not-in-force EP2795078B1 (de) 2011-12-23 2012-12-03 Anordnung und verfahren zur kühlung eines kühlmittels in einem kühlsystem in einem fahrzeug

Country Status (9)

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

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SE538836C2 (en) * 2014-12-05 2016-12-20 Scania Cv Ab A cooling arrangement for a WHR system
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Also Published As

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

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