EP2149688B1 - Agencement de refroidissement d'un véhicule automobile - Google Patents

Agencement de refroidissement d'un véhicule automobile Download PDF

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Publication number
EP2149688B1
EP2149688B1 EP09165605.8A EP09165605A EP2149688B1 EP 2149688 B1 EP2149688 B1 EP 2149688B1 EP 09165605 A EP09165605 A EP 09165605A EP 2149688 B1 EP2149688 B1 EP 2149688B1
Authority
EP
European Patent Office
Prior art keywords
heat transfer
exhaust gas
cooling
coolant
transfer 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.)
Not-in-force
Application number
EP09165605.8A
Other languages
German (de)
English (en)
Other versions
EP2149688A2 (fr
EP2149688A3 (fr
Inventor
Georg Feldhaus
Eike Willers
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.)
Mahle Behr GmbH and Co KG
Mahle Behr Kornwestheim GmbH
Original Assignee
Mahle Behr GmbH and Co KG
Mahle Behr Kornwestheim GmbH
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 Mahle Behr GmbH and Co KG, Mahle Behr Kornwestheim GmbH filed Critical Mahle Behr GmbH and Co KG
Publication of EP2149688A2 publication Critical patent/EP2149688A2/fr
Publication of EP2149688A3 publication Critical patent/EP2149688A3/fr
Application granted granted Critical
Publication of EP2149688B1 publication Critical patent/EP2149688B1/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
    • F01P3/20—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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • 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
    • 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
    • F01P2060/12—Turbo charger
    • 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
    • F01P2060/16—Outlet manifold
    • 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
    • F01P7/162—Controlling of coolant flow the coolant being liquid by thermostatic control by cutting in and out of pumps

Definitions

  • the invention relates to a cooling arrangement of a motor vehicle, comprising a coolant circuit for guiding a coolant flow, a switched into the coolant circuit and integrated into an internal combustion engine first heat transfer device for cooling the internal combustion engine of the motor vehicle, a connected in the coolant circuit second heat transfer device for cooling an exhaust gas turbocharger of the motor vehicle and a in the coolant circuit connected third heat transfer device for cooling an exhaust gas recirculation of the motor vehicle.
  • Cooling arrangements for motor vehicles are known and generally serve to dissipate waste heat from various units of the motor vehicle, for example an internal combustion engine.
  • a coolant flow can be generated by means of a pump.
  • the DE 10 2004 021 551 A1 discloses a generic cooling system for a motor vehicle.
  • the object of the invention is to provide an improved cooling arrangement for a motor vehicle with an internal combustion engine, with an exhaust gas turbocharger and an exhaust gas recirculation, in particular to allow the fastest possible reaching an operating temperature of the internal combustion engine during a warm-up phase.
  • the object is with a cooling arrangement of a motor vehicle, with a coolant circuit for guiding a coolant flow, a switched into the coolant circuit and integrated into an internal combustion engine first heat transfer device for cooling the internal combustion engine of the motor vehicle, a second heat transfer device connected to the coolant circuit for cooling an exhaust gas turbocharger of the motor vehicle and a third heat transfer device connected to the coolant circuit for cooling an exhaust gas recirculation of the motor vehicle, characterized in that the first heat transfer device can be acted upon by a first partial flow of the coolant flow, independently of this the second and third heat transfer device can be acted upon by a second and third partial flow of the coolant circuit and wherein the first heat transfer device is connected in a first partial circuit of the coolant circuit, the second and third heat transfer device are connected in a second partial circuit of the coolant circuit and atieriffenstilistand in the first heat transfer device a Cooling of the exhaust gas recirculation and the exhaust gas turbocharger Wegba r is.
  • both the exhaust gas recirculation and the exhaust gas turbocharger can be acted upon independently of the first partial flow for cooling with the second and third partial flow of the coolant flow. It is for example possible to reduce the first partial flow, so that the fastest possible heating of the internal combustion engine to an operating temperature is possible and thereby the comparatively smaller temperature time constant and / or higher temperature differences components of the exhaust gas turbocharger and / or the exhaust gas recirculation for demand cooling with the second and to apply to the third partial flow of the coolant flow.
  • a cooling arrangement according to the invention is characterized in that the first heat transfer device is connected in a first partial circuit of the coolant circuit.
  • the first partial circuit can be operated and / or regulated independently of the remaining partial circuit.
  • An inventive cooling arrangement of the motor vehicle is also characterized in that the second and third heat transfer device connected in a second partial circuit of the coolant circuit are.
  • the first and second partial circuits of the coolant circuit can be operated, controlled and / or regulated independently of each other. It is thus possible to independently or more slowly cool the internal combustion engine depending on the accumulated waste heat than the exhaust gas turbocharger and the exhaust gas recirculation.
  • Another embodiment of the cooling arrangement of the motor vehicle is characterized in that the first heat transfer device is connected in parallel to the second and third heat transfer device.
  • the first partial flow and in the parallel branch of the second and third heat transfer device the second and the third partial flow of the coolant flow can be performed independently.
  • Another embodiment of the cooling arrangement of the motor vehicle is characterized in that the second heat transfer device is connected in parallel to the third heat transfer device.
  • apart from the first coolant flow not flowing through the engine share can be divided into the second and third partial flow.
  • Another embodiment of the cooling arrangement of the motor vehicle is characterized in that the second heat transfer device is connected in series with the third heat transfer device. In this interconnection, the second and the third partial flow are identical and are guided successively through the second and third heat transfer device.
  • a further embodiment of the cooling arrangement of the motor vehicle is characterized in that the first heat transfer device is switchable in series with a radiator for heating the motor vehicle.
  • the heating of the motor vehicle can advantageously be operated by means of the first partial flow of the coolant flow heated by the internal combustion engine of the motor vehicle. It is advantageous to control the heating independent of the second and third partial flow of the coolant flow possible.
  • a further exemplary embodiment of the cooling arrangement of the motor vehicle is characterized in that the first partial flow can be reduced to zero. In the internal combustion engine so a coolant cessation can be generated for rapid heating.
  • the object is also achieved with a motor vehicle having a cooling arrangement described above.
  • FIG. 1 shows a cooling arrangement 1 of a motor vehicle 3, not shown, with a coolant circuit 5 for guiding a coolant flow 7.
  • the coolant flow 7 is symbolized by means of drawn and marked with arrows lines.
  • a pump 9 For generating the coolant flow 7, a pump 9 is provided.
  • the pump 9 may be, for example, a mechanically and / or electrically driven pump. Downstream of the pump 9, the coolant circuit 5 branches into a first partial circuit 11 and a second Subcircuit 13. The coolant circuit 5 branches at a branch 15 into the first and second subcircuits 11, 13, which are brought together again at a junction 17.
  • the first part circuit 11 Downstream of the branch 15, the first part circuit 11 has a first heat transfer device 19, which is assigned to an internal combustion engine 21 of the motor vehicle 3 for cooling.
  • the first heat transfer device 19 is integrated into the internal combustion engine 21 so that the first partial circuit 11 is passed through the internal combustion engine 21.
  • the first subcircuit 11 Downstream of the first heat transfer device 19, the first subcircuit 11 has a map thermostat 23, which divides the first subcircuit 11 into a large cooling circuit 29 and a small cooling circuit 73 depending on the temperature and / or other parameters.
  • the heating circuit 25 has a not shown in detail, indicated by the reference numeral 31 radiator for heating an interior of the motor vehicle 3.
  • the engine oil cooling circuit 27 has an engine oil cooler 33 for cooling an engine oil of the internal combustion engine 21.
  • the valves 64 may be designed as shut-off valves, for example, only with an open-close functionality in a simple design.
  • the large cooling circuit 29 has a radiator for cooling the coolant flow 7 or a cooling partial flow 36 of the coolant flow 7 set by means of the map-controlled thermostat 23.
  • the cooler 35 can be acted upon with cooling air, which is indicated by arrows 37.
  • the radiator 35 may be assigned a fan 39.
  • the second partial circuit 13 Downstream of the branch 15, the second partial circuit 13 has a second heat transfer device 41, which is assigned to an exhaust gas turbocharger 43 for cooling.
  • the second partial circuit 13 downstream of the branch 15 has a third heat transfer device 45, which is assigned to cool an exhaust gas recirculation 47.
  • the second partial circuit 13 Upstream of the exhaust gas turbocharger 43, the second partial circuit 13 may have a follower pump 49, which can maintain a coolant flow even when the internal combustion engine and / or stationary pump 9, advantageously boiling, caused by stored in the components of the exhaust gas turbocharger 43, be reliably prevented can.
  • the second heat transfer device 41 is connected in parallel to the third heat transfer device 45, wherein the second heat transfer device 41 with a second partial flow 51 and the third heat transfer device 45 with a third partial flow 53 of the coolant flow 7 are acted upon.
  • the turbocharger 43 is connected to a charge air cooling 57 for cooling the compressed charge air.
  • the charge air flow generated by means of the exhaust gas turbocharger 43 is in FIG. 1 symbolized by square dotted lines.
  • the charge air cooler 57 can also be traversed by the symbolized by the arrows 37 cooling air flow for cooling the charge air.
  • the intercooler 57 may be connected upstream of the radiator 35.
  • An exhaust gas stream 61 leaving the internal combustion engine 21 is in FIG. 1 symbolized by circular dotted lines.
  • a first partial flow 71 of the exhaust gas stream 61 is fed into the exhaust gas turbocharger 43.
  • a second partial stream 72 of the exhaust gas stream 61 is supplied to the exhaust gas recirculation 47 for cooling the third heat transfer device 45 and admixed therefrom via an optionally recyclable exhaust gas recirculation valve 63 to the charge air stream 59.
  • the exhaust gas recirculation valve 63 regulates the exhaust gas mass flow, which is recycled.
  • the exhaust gas recirculation valve 63 is part of a valve arrangement 66 for controlling and / or controlling all partial flows of the coolant flow 7, the charge air flow 59 and the exhaust gas flow 61.
  • the charge air flow 59 is preferably set by a throttle flap 62.
  • the second and optionally the third partial flow 51 and 53 of the second and third heat transfer device 41 and 45 can be adjusted independently of a first partial flow 67 of the coolant flow 7 of the first heat transfer device 19. It is possible, for example, to reduce the first partial flow 67 to zero, during a warm-up phase of the internal combustion engine 21 this can be brought to an operating temperature as quickly as possible, at the same time a necessary cooling of the exhaust gas turbocharger 43 and the exhaust gas recirculation 47 by means of the second and third heat transfer device 41 and 45 is possible.
  • FIG. 2 essentially shows the in FIG. 1 shown cooling arrangement 1 of the motor vehicle 3.
  • the second heat transfer device 41 and the third heat transfer device 45 are connected in series, so that the second partial flow 51 and the third partial flow 53 of the refrigerant flow 7 are identical.
  • the control valve 65 of the valve arrangement 66 is connected in the second partial circuit 13.
  • the third heat transfer device 45 and a possible cooling 55 for the exhaust gas recirculation valve 63 are connected.
  • the follower pump 49 is connected in the second partial circuit 13.
  • the second heat transfer device 41 is connected, which in turn is associated downstream of the junction 17.
  • the fuel consumption of the internal combustion engine 21 can be reduced, wherein a comparatively large internal friction can be prevented by the fastest possible heating of the internal combustion engine 21, while still the exhaust gas recirculation 47 and the exhaust gas turbocharger 43 regardless of a possibly established coolant cessation in the first Heat transfer device 19 can be cooled.
  • the corresponding components of the exhaust gas turbocharger 43 and the exhaust gas recirculation 47 can be cooled constantly, wherein a Simmering of the coolant in the second and third heat transfer devices 41 and 45 is reliably avoidable.
  • the heating circuit 25 can be operated, since this is the first heat transfer device 19 downstream.
  • the exhaust gas turbocharger 43 and the exhaust gas recirculation 47 can be avoided.
  • the exhaust gas recirculation 47 and the exhaust gas turbocharger 43 independently of the sub-streams 51 and 53 of the coolant flow 7 acted upon. This ensures safe exhaust gas cooling.
  • the second partial circuit 13, which has the third heat transfer device for cooling the exhaust gas recirculation 47, is advantageously removed from the heating circuit 25.
  • the second partial circuit 13, regardless of the heating circuit 25, are flowed through by the coolant.
  • the branch between a pressure side of the pump 9 and an input in the first heat transfer device 19 is connected, where there is advantageously the greatest pressure.
  • the boiling limit within the third heat transfer device 45 can be shifted upward by the high pressure.
  • the junction 17 is located directly upstream of the pump 9.
  • the second heat transfer device 41 a cooling of the exhaust gas turbocharger 43, which also requires a constant admission to the coolant to ensure.
  • the exhaust gas recirculation valve 63 for controlling the recirculated exhaust gas stream 61 can also be cooled by means of the third partial flow 53 of the coolant flow 7, which can take place by means of a bypass.
  • the exhaust gas recirculation valve 63 for controlling the recirculated exhaust gas stream 61 may alternatively be upstream or downstream of the third heat transfer device 45.
  • the cooling of the exhaust gas recirculation 47 and / or the exhaust gas turbocharger 43 can be ensured even after a shutdown of the internal combustion engine 21 by means of the follower pump 49.
  • the follow-up pump 49 prevents boiling of the standing coolant by the heat stored in the components.
  • the pump 9 conveys the entire coolant volume flow 7 through the second partial circuit 13, in which the third heat transfer device 45 and optionally the second heat transfer device 41 are arranged. It is conceivable to provide only the third heat transfer device 45 for cooling the exhaust gas recirculation 47 and to dispense with cooling of the exhaust gas turbocharger 43. Since the second and / or third partial volume flow 51 and / or 53 of the coolant flow 7 can be too large, the control valve 65 of the valve arrangement 66 can optionally be switched downstream of the branch 15 into the second partial circuit 13 in order to reduce the coolant volume flow of the second partial circuit 13. By means of this control valve 65, the second partial circuit 13 can be throttled and, correspondingly, the second and third partial volume flows 51 and 53 can be reduced.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Claims (7)

  1. Agencement de refroidissement (1) d'un véhicule automobile (3), comprenant :
    - un circuit de liquide de refroidissement (5) servant à acheminer un flux de liquide de refroidissement (7),
    - un premier dispositif de transfert de chaleur (19) monté dans le circuit de liquide de refroidissement (5) et intégré à un moteur à combustion interne (21), ledit dispositif de transfert de chaleur servant au refroidissement du moteur à combustion interne (21) du véhicule automobile (3),
    - un deuxième dispositif de transfert de chaleur (41) monté dans le circuit de liquide de refroidissement (5) et servant au refroidissement d'un turbocompresseur (43) du véhicule automobile (3),
    - un troisième dispositif de transfert de chaleur (45) monté dans le circuit de liquide de refroidissement (5) et servant au refroidissement d'un recyclage des gaz d'échappement (47) du véhicule automobile (3),
    caractérisé en ce que
    le premier dispositif de transfert de chaleur (19) peut être alimenté par un premier flux partiel (67) du flux de liquide de refroidissement (7) où, indépendamment de cette alimentation par ce premier flux partiel, les deuxième et troisième dispositifs de transfert de chaleur (41, 45) peuvent être alimentés par un deuxième et troisième flux partiels (51, 53) du liquide de refroidissement (7),
    où le premier dispositif de transfert de chaleur (19) est monté dans un premier circuit partiel (11) du circuit de liquide de refroidissement (5),
    où les deuxième et troisième dispositifs de transfert de chaleur (41, 45) sont montés dans un deuxième circuit partiel (13) du circuit de liquide de refroidissement (5) et, en cas d'arrêt du liquide de refroidissement dans le premier dispositif de transfert de chaleur, un refroidissement du recyclage des gaz d'échappement et du turbocompresseur peut être effectué.
  2. Agencement de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier dispositif de transfert de chaleur (19) est monté en parallèle par rapport aux deuxième et troisième dispositifs de transfert de chaleur (41, 45).
  3. Agencement de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que le deuxième dispositif de transfert de chaleur (41) est monté en parallèle par rapport au troisième dispositif de transfert de chaleur (45).
  4. Agencement de refroidissement selon l'une quelconque des revendications précédentes 1 à 3, caractérisé en ce que le deuxième dispositif de transfert de chaleur (41) est monté en série par rapport au troisième dispositif de transfert de chaleur (45).
  5. Agencement de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier dispositif de transfert de chaleur peut être monté en série avec un radiateur (31) pour le chauffage du véhicule automobile (3).
  6. Agencement de refroidissement selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier flux partiel (67) peut être réduit à zéro.
  7. Véhicule automobile (3) comprenant un agencement de refroidissement (1) selon l'une quelconque des revendications précédentes.
EP09165605.8A 2008-08-01 2009-07-15 Agencement de refroidissement d'un véhicule automobile Not-in-force EP2149688B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810035880 DE102008035880A1 (de) 2008-08-01 2008-08-01 Kühlanordnung eines Kraftfahrzeuges

Publications (3)

Publication Number Publication Date
EP2149688A2 EP2149688A2 (fr) 2010-02-03
EP2149688A3 EP2149688A3 (fr) 2012-02-01
EP2149688B1 true EP2149688B1 (fr) 2016-04-27

Family

ID=41403030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09165605.8A Not-in-force EP2149688B1 (fr) 2008-08-01 2009-07-15 Agencement de refroidissement d'un véhicule automobile

Country Status (2)

Country Link
EP (1) EP2149688B1 (fr)
DE (1) DE102008035880A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010063265A1 (de) * 2010-12-16 2012-06-21 Mahle International Gmbh Ladeluftkühler
US8689555B2 (en) * 2011-04-14 2014-04-08 GM Global Technology Operations LLC System and method for cooling a turbocharger
DE102012217229A1 (de) * 2012-09-25 2014-06-12 Bayerische Motoren Werke Aktiengesellschaft Kühlmittelkreislauf für eine Brennkraftmaschine und Betriebsverfahren hierfür
FR3040433A1 (fr) * 2015-08-24 2017-03-03 Peugeot Citroen Automobiles Sa Moteur de vehicule automobile suralimente par turbocompresseur muni d'un systeme de refroidissement dedie au turbocompresseur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943967A (ja) * 1982-09-03 1984-03-12 Nippon Soken Inc 内燃機関におけるヒ−タ−作動用通水装置
DE4104093A1 (de) * 1991-02-11 1992-08-13 Behr Gmbh & Co Kuehlanlage fuer ein fahrzeug mit verbrennungsmotor
DE19633190B4 (de) * 1996-08-17 2004-02-26 Daimlerchrysler Ag Kühlsystem für eine Brennkraftmaschine
DE10025500B4 (de) * 2000-05-23 2013-05-29 Bosch Mahle Turbo Systems Gmbh & Co. Kg Brennkraftmaschine mit Kühlkreislauf und einem an diesen angeschlossenen Heizungswärmetauscher
DE102004021551A1 (de) * 2004-05-03 2006-02-09 Daimlerchrysler Ag Kühlsystem, insbesondere für ein Kraftfahrzeug
DE102006020951A1 (de) * 2005-07-28 2007-02-01 Audi Ag Kühlsystem für ein Fahrzeug und Verfahren zum Betreiben eines Kühlsystems

Also Published As

Publication number Publication date
EP2149688A2 (fr) 2010-02-03
DE102008035880A1 (de) 2010-02-04
EP2149688A3 (fr) 2012-02-01

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