EP1041268B1 - Moteur à combustion et son procédé de fonctionnement - Google Patents

Moteur à combustion et son procédé de fonctionnement Download PDF

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Publication number
EP1041268B1
EP1041268B1 EP00100869A EP00100869A EP1041268B1 EP 1041268 B1 EP1041268 B1 EP 1041268B1 EP 00100869 A EP00100869 A EP 00100869A EP 00100869 A EP00100869 A EP 00100869A EP 1041268 B1 EP1041268 B1 EP 1041268B1
Authority
EP
European Patent Office
Prior art keywords
cooling
water
exhaust
cooling water
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.)
Expired - Lifetime
Application number
EP00100869A
Other languages
German (de)
English (en)
Other versions
EP1041268A3 (fr
EP1041268A2 (fr
Inventor
Otto Dr. Koehler
Norbert Dipl.-Ing. Ermisch
Werner Aberle
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1041268A2 publication Critical patent/EP1041268A2/fr
Publication of EP1041268A3 publication Critical patent/EP1041268A3/fr
Application granted granted Critical
Publication of EP1041268B1 publication Critical patent/EP1041268B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
    • 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
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P2011/205—Indicating devices; Other safety devices using heat-accumulators
    • 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
    • F01P7/165—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
    • F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
    • F02M26/43—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine

Definitions

  • the invention relates to an internal combustion engine with a cooling water heat accumulator and an exhaust gas recirculation with cooled in an exhaust gas heat exchanger Exhaust gas and a work process that can be carried out with it.
  • the components required in each case namely the cooling water heat accumulator and the heat exchanger of the exhaust gas recirculation, are very large-volume components which, in particular in the case of smaller vehicles, can be accommodated in an engine compartment and applied to the engine only with great design effort.
  • Another disadvantage is that each individual component has a weight that cannot be neglected.
  • the object of the invention is to provide an internal combustion engine which allows the use of a cooling water heat accumulator and an exhaust gas heat exchanger even in a confined space with a considerably smaller space requirement and weight. Furthermore, a more efficient working method of an internal combustion engine is to be made available.
  • Cooling water heat accumulator of the storage heat exchanger arranged a valve which that coming from the cooling water outlet of the internal combustion engine Cooling water flow can enter the cooling water inlet of the cooling water heat accumulator or bypasses it through the storage heat exchanger.
  • the advantage of this is that the amount of water to be heated first inside Cooling circuit is significantly reduced, so that the internal combustion engine faster can approach their optimal operating temperature.
  • the Valve in front of the cooling water heat accumulator of the storage heat exchanger is closed, can recirculated exhaust gas through the exhaust gas heat exchanger of the storage heat exchanger are passed through to the intake manifold and cools due to of the cold water located in the storage heat exchanger, it being advantageous heated.
  • the time from which exhaust gases are led through the cooling water heat accumulator and in what amount is preferably arranged in the exhaust gas stream Valve regulated.
  • An embodiment of the inventive is also of particular importance Internal combustion engine, in which the cooling water heat accumulator of the storage heat exchanger is provided with an additional vent closure, so that it is in a third function can also serve as an expansion tank for the cooling water, so that this, as a separately executed component, can also be dispensed with and that Additional weight of the integrated cooling water heat accumulator with exhaust gas heat exchanger by saving the own weight of the expansion tank with filling, about 3 kg a small vehicle that can be fully compensated.
  • the heat exchanger which is heat-insulated from the outside, before the start of the Internal combustion engine is still filled with hot cooling water from the last engine run, is immediately after starting the engine by a in front of the cooling water heat accumulator arranged valve is opened briefly and the hot cooling water in it against cold cooling water from the internal cooling circuit of the internal combustion engine exchanged, after which the valve closes and the cooling water flow through one Bypass past the storage heat exchanger until it reaches a minimum operating temperature has reached, from which the valve the flow of cooling water through the cooling water heat accumulator of the storage heat exchanger releases again.
  • the cold cooling water heats up in the cooling water heat accumulator through the recirculated exhaust gas and the cooling water in the internal cooling circuit Internal combustion engine, the temperature difference between cooling water and Exhaust gas always remains so large that the exhaust gas is cooled even when the valve is open remains guaranteed.
  • a partial flow of the exhaust gas 9 is branched off via an exhaust gas recirculation valve 14 and passed through an exhaust gas heat exchanger 4 of a storage heat exchanger 1 integrated in a cooling water heat accumulator 2 and then passed through an exhaust gas recirculation line 10 to a suction pipe 15, where it is supplied with fresh air 8 mixed is fed back to the combustion process.
  • the cooling water conveyed out of the internal combustion engine 11 flows through a cooling water drain line 5 to a valve 3, which is arranged in front of the cooling water heat accumulator 2 of the storage heat exchanger 1 and which either guides the cooling water flow through the cooling water heat accumulator 2 or via a cooling water Bypass 6 bypasses the storage heat exchanger 1.
  • the cooling water flows through a heating heat exchanger 16 and is then fed back to the internal combustion engine 11.
  • the storage heat exchanger 1 is additionally provided with a vent lock 17 equipped so that it can also serve as a surge tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Atmospheric Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Turning (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Disintegrating Or Milling (AREA)

Claims (6)

  1. Moteur à combustion comprenant un accumulateur de chaleur à eau de refroidissement et une recirculation de gaz d'échappement avec du gaz d'échappement refroidi par un échangeur de chaleur à gaz d'échappement,
    caractérisé en ce que
    un accumulateur de chaleur à eau de refroidissement (2) et un échangeur de chaleur à gaz d'échappement (4) pour le gaz d'échappement à recirculer dans le processus de combustion sont assemblés en un accumulateur-échangeur de chaleur (1) et l'eau de refroidissement forme le fluide de refroidissement pour l'échangeur de chaleur à gaz d'échappement (4).
  2. Moteur à combustion selon la revendication 1,
    caractérisé en ce que
    l'on dispose avant l'accumulateur de chaleur à eau de refroidissement (2) de l'accumulateur-échangeur de chaleur (1) une soupape (3) avec laquelle l'eau de refroidissement sortant d'une sortie d'eau de refroidissement (12) du moteur à combustion (11) peut être introduite dans une entrée d'eau de refroidissement (13) de l'accumulateur de chaleur à eau de refroidissement (2) ou peut être circulée dans une dérivation d'eau de refroidissement (6) autour de l'accumulateur-échangeur de chaleur (1).
  3. Moteur à combustion selon la revendication 1,
    caractérisé en ce que
    l'on dispose dans le courant de gaz d'échappement derrière le moteur à combustion (11) une soupape de recirculation de gaz d'échappement (14) avec laquelle celui-ci peut être circulé partiellement dans l'échangeur de chaleur à gaz d'échappement (4) de l'accumulateur-échangeur de chaleur (1).
  4. Moteur à combustion selon la revendication 1,
    caractérisé en ce que
    l'accumulateur de chaleur à eau de refroidissement (2) de l'accumulateur-échangeur de chaleur (1) est pourvu d'une fermeture de désaérage (17) et est réalisé sous forme de récipient de compensation pour l'eau de refroidissement.
  5. Procédé de fonctionnement d'un moteur à combustion comprenant un accumulateur de chaleur à eau de refroidissement et une recirculation de gaz d'échappement avec du gaz d'échappement refroidi,
    caractérisé en ce que
    au démarrage du moteur à combustion (11), une soupape (3) disposée avant l'accumulateur de chaleur à eau de refroidissement (2) est brièvement commutée de telle sorte que l'eau de refroidissement chaude accumulée dans l'accumulateur de chaleur à eau de refroidissement (2), provenant du dernier fonctionnement du moteur, soit remplacée par de l'eau de refroidissement froide provenant d'un circuit de refroidissement interne du moteur à combustion (11), juste après le démarrage, le gaz d'échappement (9) est guidé à travers un échangeur de chaleur à gaz d'échappement (4) intégré dans l'accumulateur de chaleur à eau de refroidissement (2), le gaz d'échappement (9) réchauffant d'abord l'eau de refroidissement froide dans l'accumulateur de chaleur à eau de refroidissement (2) et étant en même temps lui-même refroidi, et en ce qu'ensuite, une fois qu'une température de fonctionnement minimale de l'eau de refroidissement du circuit de refroidissement interne a été atteinte, la soupape (3) est commutée de telle sorte que l'eau de refroidissement soit conduite à travers l'accumulateur de chaleur à eau de refroidissement (2) et que le gaz d'échappement (9) y soit refroidi.
  6. Procédé de fonctionnement selon la revendication 5,
    caractérisé en ce que
    après le remplacement de l'eau de refroidissement froide depuis le circuit de refroidissement interne du moteur à combustion (11) par l'eau de refroidissement encore chaude provenant de l'accumulateur de chaleur à eau de refroidissement (2), la soupape (3) est commutée de telle sorte que l'eau de refroidissement du moteur à combustion (11) soit d'abord guidée à travers une dérivation (6), jusqu'à ce qu'une température de fonctionnement minimale de l'eau de refroidissement dans le circuit de refroidissement interne soit atteinte.
EP00100869A 1999-03-30 2000-01-18 Moteur à combustion et son procédé de fonctionnement Expired - Lifetime EP1041268B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914438A DE19914438A1 (de) 1999-03-30 1999-03-30 Verbrennungskraftmaschine und Arbeitsverfahren einer Verbrennungskraftmaschine
DE19914438 1999-03-30

Publications (3)

Publication Number Publication Date
EP1041268A2 EP1041268A2 (fr) 2000-10-04
EP1041268A3 EP1041268A3 (fr) 2001-03-07
EP1041268B1 true EP1041268B1 (fr) 2004-06-02

Family

ID=7902970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100869A Expired - Lifetime EP1041268B1 (fr) 1999-03-30 2000-01-18 Moteur à combustion et son procédé de fonctionnement

Country Status (4)

Country Link
EP (1) EP1041268B1 (fr)
AT (1) ATE268433T1 (fr)
CA (1) CA2301982A1 (fr)
DE (2) DE19914438A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032852A1 (de) * 2006-07-14 2008-01-17 Bayerische Motoren Werke Ag Fahrzeug mit einem Kühlsystem mit mehreren Fluidkreisläufen und einer gemeinsamen Steuer/Regeleinrichtung und einem Ausgleichsbehälter mit Wärmetauschspeichereinrichtung
CN105102783A (zh) * 2013-04-18 2015-11-25 丰田自动车株式会社 热输送装置

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FR2823704B1 (fr) * 2001-04-20 2003-07-04 Renault Dispositif de gestion thermique d'un vehicule automobile
DE10340908A1 (de) * 2003-09-05 2005-03-31 Daimlerchrysler Ag Brennkraftmaschine für Kraftfahrzeuge
FR2873758B1 (fr) * 2004-08-02 2010-10-08 Renault Sas Groupe motopropulseur de vehicule automobile comportant un circuit de recirculation de gaz d'echappement
DE102008038629B4 (de) 2008-08-12 2019-12-05 Mahle International Gmbh Abgaskühler für ein Kraftfahrzeug
CN102808679A (zh) * 2011-05-30 2012-12-05 上海汽车集团股份有限公司 发动机热管理方法及系统
CN102536582A (zh) * 2012-01-13 2012-07-04 浙江吉利汽车研究院有限公司 一种发动机的预热装置
CN103061947B (zh) * 2012-12-28 2015-12-09 浙江大学宁波理工学院 发动机冷启动预热装置
FR3004495A3 (fr) * 2013-04-12 2014-10-17 Renault Sa Dispositif de refroidissement d'une boucle de recirculation de gaz dans un moteur de vehicule
CN103790682A (zh) * 2013-09-17 2014-05-14 黑龙江省康格尔科技有限公司 车辆发动机节能预热系统
DE102013222557A1 (de) * 2013-11-06 2015-05-07 MAHLE Behr GmbH & Co. KG Kühlmittelkreislauf eines Verbrennungsmotors
FR3013764A1 (fr) * 2013-11-27 2015-05-29 Peugeot Citroen Automobiles Sa Circuit de refroidissement d'un moteur a combustion interne.
US10316801B2 (en) * 2017-01-16 2019-06-11 Ford Global Technologies, Llc Method and system for an exhaust heat exchanger
DE102018209238B4 (de) * 2018-06-11 2021-12-30 Ford Global Technologies, Llc Abgasturboaufgeladene Brennkraftmaschine mit Abgasrückführung und Verfahren zum Betreiben einer derartigen Brennkraftmaschine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032852A1 (de) * 2006-07-14 2008-01-17 Bayerische Motoren Werke Ag Fahrzeug mit einem Kühlsystem mit mehreren Fluidkreisläufen und einer gemeinsamen Steuer/Regeleinrichtung und einem Ausgleichsbehälter mit Wärmetauschspeichereinrichtung
CN105102783A (zh) * 2013-04-18 2015-11-25 丰田自动车株式会社 热输送装置

Also Published As

Publication number Publication date
DE50006644D1 (de) 2004-07-08
ATE268433T1 (de) 2004-06-15
EP1041268A3 (fr) 2001-03-07
EP1041268A2 (fr) 2000-10-04
DE19914438A1 (de) 2000-10-05
CA2301982A1 (fr) 2000-09-30

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