EP1774149A1 - Dispositif de regulation thermique d'un moteur a combustion interne - Google Patents
Dispositif de regulation thermique d'un moteur a combustion interneInfo
- Publication number
- EP1774149A1 EP1774149A1 EP05781798A EP05781798A EP1774149A1 EP 1774149 A1 EP1774149 A1 EP 1774149A1 EP 05781798 A EP05781798 A EP 05781798A EP 05781798 A EP05781798 A EP 05781798A EP 1774149 A1 EP1774149 A1 EP 1774149A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loop
- internal combustion
- combustion engine
- exchanger
- heat exchanger
- 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- Withdrawn
Links
Classifications
-
- 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
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more pumps
Definitions
- the present invention relates to a thermal control device of an internal combustion engine.
- the invention more particularly relates to a thermal control device comprising at least a first cooling loop of the internal combustion engine and a second cooling loop of the recirculated exhaust gas (EGR).
- EGR recirculated exhaust gas
- the temperature of the exhaust gas, and consequently that of the recirculated gases exceeds a certain threshold which compromises the efficiency of the recirculated gases in the combustion chamber of the engine.
- a solution envisaged for this purpose by the car manufacturers is to implement, in addition to the conventional cooling circuit of the engine, a second cold loop including a heat exchanger liquid coolant / exhaust gas recirculated for cooling said recirculated gas and a heat exchanger thermal air / heat transfer liquid for cooling the coolant, the latter being generally a radiator located at the front face of the engine.
- a second cold loop including a heat exchanger liquid coolant / exhaust gas recirculated for cooling said recirculated gas and a heat exchanger thermal air / heat transfer liquid for cooling the coolant, the latter being generally a radiator located at the front face of the engine.
- the use of an additional radiator at the front of the engine has disadvantages in terms of architectural compactness and in terms of cost.
- the invention aims to provide a thermal control device of an internal combustion engine overcoming all or part of the disadvantages mentioned in the prior art.
- the subject of the invention is a device for the thermal regulation of an internal combustion engine, comprising at least a first cooling loop of the internal combustion engine equipped with at least one heat transfer liquid / air heat exchanger upstream of the engine. a pump and downstream of the heat transfer liquid supply means, and a second recirculated exhaust gas cooling loop (EGR) provided with at least one pump, an EGR / heat transfer fluid heat exchanger and a heat exchanger liquid heat / air, characterized in that the liquid coolant / air heat exchangers of each loop form two parts of a heat exchanger communicating by means of a controlled valve.
- EGR exhaust gas cooling loop
- the exchanger is a radiator.
- the radiator comprises a partition which separates the two liquid heat exchanger / air exchangers.
- the partition incorporates the pilot valve.
- the pilot valve is a thermostatic valve.
- FIG. 1 represents a schematic view of a device, known from the prior art, of thermal regulation of an internal combustion engine comprising two distinct and non-communicating cooling loops, intended for one to cool the engine, and for the other to cool the recirculated gases.
- Figure 2 shows a schematic view of a thermal control device of an internal combustion engine according to the invention according to a first architecture.
- Figure 3 shows a schematic view of a thermal control device of an internal combustion engine according to the invention according to a second architecture.
- the internal combustion engine 2 shown in each of the figures conventionally comprises respectively intake ducts 11 and exhaust ducts 12.
- a bypass 18 makes it possible to reinject part of the exhaust gases coming from the exhaust ducts 12 into the ducts.
- intake ducts 11 A controlled valve 9 makes it possible to control the flow rate of the recirculated gases.
- a first loop 13 dedicated to the cooling of the internal combustion engine 2 comprises in particular a heat exchanger 3a coolant / air upstream of a pump 10 and downstream of means 16 for supplying liquid coolant.
- the heat transfer fluid supply means 16 are a water outlet housing.
- the coolant is water with antifreeze additive, such as glycol water.
- a thermostatic valve 7 makes it possible to control the flow of water in the loop 13.
- the exchanger 3a is a radiator through which the water of the loop 13, located on the front face of the engine 2, passes.
- the thermostatic valve 7 opens so that the water circulates in the loop 13 to cool the motor.
- the radiator 3a cools the water that has circulated in the engine 2.
- a second loop 14 dedicated to cooling the recirculated exhaust gas (EGR) includes a pump 5, a heat exchanger 4 EGR / heat transfer liquid and a heat exchanger 3b coolant / air.
- the coolant circulating in the loop 14 by means of the pump 5 is water additive with an antifreeze, such as glycol water.
- the exchanger 3b is a radiator through which the water of the loop 14, located on the front face of the engine.
- the recirculated gases are cooled in the exchanger 4 by thermally coupling the recirculated gases from the bypass 18, with the water circulating in the loop 14.
- the water circulating in the loop 14 is in turn cooled through the radiator 3b.
- the exchangers 3a, 3b form two parts of an exchanger 3 separated by a partition 20 and communicating by means of a controlled valve 19.
- the exchanger 3 is a water radiator. It can be indifferently a split radiator by means of the partition 20 in the width as shown in Figure 2 or in the thickness as shown in Figure 3.
- the partition 20 forms a right angle so that the inputs and outputs 21a, 21b of the loops 13, 14, are on the same side.
- the ends of the inlets and outlets 21a, 21b of the loops 13, 14 are oriented towards the engine and not towards the outside of the vehicle, and this, for reasons which are not only technical but also safe with respect to frontal shock situations.
- the pilot valve 19 is a thermostatic valve.
- the device 1 further comprises a non-return valve 6, which makes it possible to limit the counter-flow circulation of the coolant liquid coming from the loop 13 via the bypass 20b.
- This same valve may furthermore comprise a small opening intended to allow the counterflow of the heat transfer liquid at a low flow rate.
- the device 1 further comprises a third cooling loop 15 connected to the engine 2 between the brine outlet housing 16 and the pump 10.
- the third loop 15 contains, for example, a heater 17 thermally coupling the coolant with heat transfer fluid. air intended to warm the cabin.
- the device 1 according to the invention has two operating configurations.
- a first operating configuration when the engine 2 does not require a cooling greater than the capacity of the exchanger 3a, that is to say when the temperature in the water outlet housing 16 is lower than a threshold S, the water circulates in the loop 13 if the thermostatic valve 7 is open.
- the loop 14 operates to cool the EGR.
- the loops 13, 14 admit a parallel operating configuration which makes it possible to maintain a temperature in the loop 14 lower than that in the loop 13. As a result, the function of the heat exchanger 4 is preserved.
- the valve 19 preferably thermostatic, opens so that a part of the water coming from the loop 13 can circulate via the valve 19 in the exchanger 3b.
- the invention has the advantage of allowing the thermal regulation of an internal combustion engine and its EGR, thanks to a single heat exchanger 3, easily integrable in the architecture of the engine by its compactness, and which allows to cool modulable way the coolant coming from the cooling loop of the engine.
- the device 1 may not include the non-return valve 6, which makes it possible to limit the counter-flow circulation of the coolant liquid coming from the loop 13 via the bypass 20b.
- the device 1 may not comprise the third cooling loop 15 connected to the motor 2 between the brine outlet housing 16 and the pump 10.
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)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0451438A FR2872545B1 (fr) | 2004-07-05 | 2004-07-05 | Dispositif de regulation thermique d'un moteur a combustion interne |
PCT/FR2005/050505 WO2006005878A1 (fr) | 2004-07-05 | 2005-06-28 | Dispositif de regulation thermique d'un moteur a combustion interne |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1774149A1 true EP1774149A1 (fr) | 2007-04-18 |
Family
ID=34945711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05781798A Withdrawn EP1774149A1 (fr) | 2004-07-05 | 2005-06-28 | Dispositif de regulation thermique d'un moteur a combustion interne |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1774149A1 (fr) |
FR (1) | FR2872545B1 (fr) |
WO (1) | WO2006005878A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2897676A1 (fr) * | 2006-02-20 | 2007-08-24 | Peugeot Citroen Automobiles Sa | Dispositif de regulation thermique des gaz recircules d'un moteur a combustion interne |
DE102006048527B4 (de) * | 2006-10-13 | 2016-12-22 | Volkswagen Ag | Kühlkreislauf für eine Brennkraftmaschine |
FR2910608B1 (fr) * | 2006-12-21 | 2009-04-03 | Peugeot Citroen Automobiles Sa | Systeme de refroidissement pour un moteur a combustion interne d'un vehicule |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3422036B2 (ja) * | 1992-07-13 | 2003-06-30 | 株式会社デンソー | 車両用冷却装置 |
US6321697B1 (en) * | 1999-06-07 | 2001-11-27 | Mitsubishi Heavy Industries, Ltd. | Cooling apparatus for vehicular engine |
US6244256B1 (en) * | 1999-10-07 | 2001-06-12 | Behr Gmbh & Co. | High-temperature coolant loop for cooled exhaust gas recirculation for internal combustion engines |
SE522590C2 (sv) * | 2003-03-28 | 2004-02-24 | Scania Cv Abp | Kylanordning och sätt att kyla en retarder |
-
2004
- 2004-07-05 FR FR0451438A patent/FR2872545B1/fr not_active Expired - Fee Related
-
2005
- 2005-06-28 EP EP05781798A patent/EP1774149A1/fr not_active Withdrawn
- 2005-06-28 WO PCT/FR2005/050505 patent/WO2006005878A1/fr not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2006005878A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2872545A1 (fr) | 2006-01-06 |
FR2872545B1 (fr) | 2009-02-13 |
WO2006005878A1 (fr) | 2006-01-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8429895B2 (en) | Internal combustion engine | |
EP1561021B1 (fr) | Dispositif de regulation thermique de l'air d'admission d'un moteur et de gaz d' echappement recircules emis par ce moteur. | |
EP1567754B1 (fr) | Dispositif perfectionne de regulation thermique de l'air d'admission d'un moteur et de gaz d'echappement recircules emis par ce moteur | |
FR2846280A1 (fr) | Systeme de conditionnement d'air pour vehicules | |
EP1966473B1 (fr) | Dispositif de gestion thermique pour vehicule automobile | |
FR2780490A1 (fr) | Systeme de reglage de la temperature dans l'habitacle d'un vehicule a moteur electrique | |
EP2125403A1 (fr) | Circuit de gaz d'echappement egr basse pression avec prise en compte du chauffage de l'habitacle | |
WO2003102396A1 (fr) | Module d'echange de chaleur conforme pour envelopper un moteur de vehicule automobile | |
EP1170498B1 (fr) | Dispositif de régulation thermique de l'air d'admission d'un moteur à combustion interne de véhicule automobile | |
FR3000140A1 (fr) | Dispositif de gestion thermique de l'air d'admission d'un moteur et procede de gestion thermique associe | |
WO2006005878A1 (fr) | Dispositif de regulation thermique d'un moteur a combustion interne | |
FR2890697A1 (fr) | Moteur de vehicule comprenant un circuit de gaz recircules refroidis a basse temperature | |
EP1432907B1 (fr) | Dispositif perfectionne de regulation thermique de l'air d'admission d'un moteur a combustion interne de vehicule automobile | |
EP1769145B1 (fr) | Dispositif de regulation thermique d'un moteur a combustion interne | |
EP1963657B1 (fr) | Dispositif de refroidissement de l'air d'admission et des gaz d'echappement recircules | |
FR2908458A1 (fr) | Systeme de refroidissement d'un moteur thermique a deux niveaux de temperature | |
EP3002443A1 (fr) | Module d'admission d'air d'un moteur a combustion interne de vehicule automobile | |
FR3049312A1 (fr) | Dispositif et circuit de refroidissement pour gaz d'alimentation d'un moteur a combustion | |
EP2126308A1 (fr) | Systeme et procede de refroidissement d'un groupe motopropulseur de vehicule automobile | |
FR2976322A1 (fr) | Repartiteur d'air comprenant un dispositif adapte a echanger de la chaleur avec de l'air de suralimentation, et systeme de transfert thermique comprenant un tel repartiteur | |
FR3078389A1 (fr) | Installation thermique pour moteurs thermique et electrique avec transmission automatique electrique et condenseur fluide/fluide | |
FR2861811A1 (fr) | Dispositif et procede de regulation thermique de gaz d'echappement recircules de vehicule automobile | |
FR2880652A1 (fr) | Circuit de refroidissement d'un moteur thermique sur un vehicule | |
FR2938299A1 (fr) | Echangeur unique de refroidissement | |
WO2008031962A1 (fr) | Systeme de refroidissement d'un groupe motopropulseur de vehicule automobile, et procede de commande d'un tel systeme |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20061222 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PORTALIER, JACQUES Inventor name: LE LIEVRE, ARMEL Inventor name: DUMOULIN, PIERRE |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20110520 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20140103 |