EP0916837A2 - Dispositif de recirculation de gaz d'échappement pour un moteur à combustion - Google Patents

Dispositif de recirculation de gaz d'échappement pour un moteur à combustion Download PDF

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Publication number
EP0916837A2
EP0916837A2 EP98119748A EP98119748A EP0916837A2 EP 0916837 A2 EP0916837 A2 EP 0916837A2 EP 98119748 A EP98119748 A EP 98119748A EP 98119748 A EP98119748 A EP 98119748A EP 0916837 A2 EP0916837 A2 EP 0916837A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
valve
gas cooler
combustion engine
actuator
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.)
Granted
Application number
EP98119748A
Other languages
German (de)
English (en)
Other versions
EP0916837B1 (fr
EP0916837A3 (fr
EP0916837B2 (fr
Inventor
Matthias Dipl.-Ing. Banzhaf
Martin Dipl.-Ing. Bauer (FH)
Osman Sari
Gérard Dietz
Helmut Blank
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.)
Pierburg GmbH
Mahle Behr GmbH and Co KG
Original Assignee
Pierburg GmbH
Behr GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7848808&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0916837(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pierburg GmbH, Behr GmbH and Co KG filed Critical Pierburg GmbH
Publication of EP0916837A2 publication Critical patent/EP0916837A2/fr
Publication of EP0916837A3 publication Critical patent/EP0916837A3/fr
Publication of EP0916837B1 publication Critical patent/EP0916837B1/fr
Application granted granted Critical
Publication of EP0916837B2 publication Critical patent/EP0916837B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • 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
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • 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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids

Definitions

  • the invention relates to a device for exhaust gas recirculation for an internal combustion engine with an exhaust gas cooler and with a determine the amount of exhaust gas returned, with a Actuator adjustable valve.
  • the return of cooled exhaust gas to an internal combustion engine ATZ is known in particular for reducing diesel emissions Automobiltechnische Zeitschrift 99 (1997) 9 (R. Lutz: Reduction of diesel emissions by recirculating cooled exhaust gas).
  • the exhaust gas recirculation valve (EGR valve) and the exhaust gas cooler (Exhaust gas heat exchangers) are independent components, which are installed in different places in the vehicle and are connected to each other by means of an exhaust pipe.
  • the invention has for its object a device of the type mentioned in such a way that a simplified Manufacturing is obtained.
  • the Actuator is attached to a component that is connected to the exhaust gas cooler is in a thermally conductive connection. This has the Advantage that a cooling effect on the control element the exhaust gas cooler is exercised, so that the actuator less is thermally stressed.
  • control element is attached to a component, that with one or more channels for a liquid coolant is provided.
  • Both configurations enable the valve on the exhaust gas inflow side to arrange the exhaust gas cooler.
  • the arrangement of the Valve on the inflow side of the exhaust gas cooler, i.e. on the Side on which the hot exhaust gas flows in has the advantage that the risk is relatively low that residues of the exhaust gas attach to the valve and its valve elements.
  • This Danger when arranging the valve after the exhaust gas cooler Increased exists leads to control elements must be provided with relatively large actuating forces that an adhesion of the valve elements due to deposited Exhaust residues can safely overcome.
  • When arranging on the exhaust gas inflow side there is a risk of deposits of Exhaust gas residues significantly lower.
  • the risk that the control elements, in particular electrical control elements, thermally overloaded are. This thermal overload is counteracted that the control element is attached to a component, whose temperature is significantly lower than the temperature of the exhaust gas coming from the internal combustion engine.
  • the channel or channels of the component carrying the actuating element connect to a coolant inlet to the exhaust gas cooler.
  • none outer connecting lines between the cooling Channels of the component carrying the actuator and to the Exhaust cooler must be provided.
  • the exhaust gas cooler has an elongated shape, and that the control element essentially in parallel next to the exhaust gas cooler is arranged. This results in a compact Design that is relatively easy to accommodate in a vehicle is.
  • the assembly shown in FIGS. 1 and 2 contains an exhaust gas cooler 10 and a valve 11, a so-called EGR valve.
  • the valve 11 and the exhaust gas cooler 10 are preferably arranged so as it is in Figure 2 of the literature mentioned at the beginning is shown, i.e. the valve 11 is on the exhaust gas inlet side of the exhaust gas cooler 10.
  • the valve 11 is provided with a connecting flange 12, with which it comes to an exhaust pipe coming from an internal combustion engine can be connected.
  • Inside the valve body is an adjustable valve element in a manner not shown provided to which a valve seat is assigned.
  • the Valve determines the amount of exhaust gas that is sent to the exhaust gas cooler 10 flows.
  • the valve element is by means of an actuator 13 adjusted, in particular an electromagnetic actuator. This determines depending on the specified engine data Valve 11 the amount of exhaust gas that is supplied to the internal combustion engine Fresh air can be added.
  • the actuator 13 can work so that there is a two-point control or also carries out a cross-sectional regulation.
  • the valve 11 is with Provided fasteners 14, by means of which it is attached to a Bracket can be attached, for example on the engine block of the internal combustion engine.
  • the valve 11 has one in approximately funnel-shaped distribution chamber 15, by means of the exhaust gas is supplied to the exhaust gas cooler 10.
  • the exhaust gas cooler 10 is designed in principle as this the reference mentioned at the beginning (ATZ Automobiltechnische Journal 99 (1997) 9) is known. He owns his Each end has a floor in which the ends of one Variety of rectangular tubes are used, which are among themselves are arranged at a distance.
  • the tube bundle out Rectangular tubes are surrounded by a jacket 16 which is attached to the circumferential chambers 17, 18 forms both end regions.
  • the Chambers 17, 18 are provided with connections 19, 20 through the coolant of the engine cooling circuit is supplied and removed becomes.
  • the coolant preferably flows parallel to the exhaust gas in the exhaust gas cooler 10, so that the connection 19 is an inlet connection and port 20 is a return port.
  • the end of the exhaust gas cooler 10 facing the valve 11 is with provided a flange 23, which preferably also the bottom for forms the tube bundle of the exhaust gas cooler.
  • the housing of the valve 11 is flanged.
  • the control element 13 is fastened next to the exhaust gas cooler 10, that is essentially parallel to the jacket 16 of the exhaust gas cooler is aligned.
  • the flange 23 is relatively thick-walled trained so that he has a thermal separation between the housing of the valve 11 and the actuator 13 forms.
  • the flange 23, which of the through the exhaust gas cooler 10th flowing coolant is clearly cooled lower temperature than the valve housing of the valve 11, so that the actuator 13 is thermally separated from the valve 11 and is accordingly only relatively low thermal stress.
  • an exhaust gas cooler 10 and a valve 11 formed unit of the embodiment of FIGS. 3 and 4 corresponds in the basic structure and in the basic Arrangement of the embodiment according to FIGS. 1 and 2.
  • the exhaust gas cooler 10 has a stronger flange 24 provided the in a manner not shown with by one Feed port 25 leading to the chamber 17 of the jacket 16 Channels is provided, through which the coolant of the internal combustion engine to the chamber 17 of the exhaust gas cooler 10 is performed.
  • the flange 24 is therefore actively cooled, so that an even better thermal separation between the valve 11 and the actuator 13 is obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
EP98119748A 1997-11-17 1998-10-22 Dispositif de recirculation de gaz d'échappement pour un moteur à combustion Expired - Lifetime EP0916837B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19750588 1997-11-17
DE19750588.0A DE19750588B4 (de) 1997-11-17 1997-11-17 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor

Publications (4)

Publication Number Publication Date
EP0916837A2 true EP0916837A2 (fr) 1999-05-19
EP0916837A3 EP0916837A3 (fr) 2000-03-08
EP0916837B1 EP0916837B1 (fr) 2002-03-13
EP0916837B2 EP0916837B2 (fr) 2011-10-26

Family

ID=7848808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98119748A Expired - Lifetime EP0916837B2 (fr) 1997-11-17 1998-10-22 Dispositif de recirculation de gaz d'échappement pour un moteur à combustion

Country Status (3)

Country Link
US (1) US6213105B1 (fr)
EP (1) EP0916837B2 (fr)
DE (2) DE19750588B4 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020156A1 (fr) * 1999-09-16 2001-03-22 Transtec Plc Systeme de recyclage de gaz d'echappement
WO2001021952A1 (fr) * 1999-09-20 2001-03-29 Siemens Canada Limited Adaptateur de collecteur de liquide de refroidissement servant a monter de maniere integree une soupape rge et un corps d'etrangleur sur un moteur
LU90761B1 (en) * 2001-04-20 2002-10-21 Delphi Tech Inc Device for exhaust gas recirculation
EP1489373A2 (fr) 2003-06-18 2004-12-22 Modine Manufacturing Company Echangeur de chaleur à plaques sans enveloppe et avec chambres collectrices
EP1491837A2 (fr) 2003-06-26 2004-12-29 Modine Manufacturing Company Echangeur de chaleur à plaques sans enveloppe
EP1626238A1 (fr) 2004-08-14 2006-02-15 Modine Manufacturing Company Echangeur de chaleur avec tubes plats
WO2006040053A1 (fr) * 2004-10-07 2006-04-20 Behr Gmbh & Co. Kg Echangeur de chaleur de gaz d'echappement refroidi par air, en particulier refroidisseur de gaz d'echappement pour vehicules automobiles
EP1233170A3 (fr) * 2001-02-20 2006-05-03 Nissan Motor Co., Ltd. Système de refroidissement de gaz d'échappement recirculé pour moteur à combustion interne
WO2007042209A1 (fr) * 2005-10-10 2007-04-19 Behr Gmbh & Co. Kg Dispositif pour recycler et refroidir les gaz d'echappement d'un moteur a combustion interne
EP2025910A1 (fr) 2007-07-30 2009-02-18 Cooper-Standard Automotive (Deutschland) GmbH Système de recirculation des gaz d'échappement
FR2943384A1 (fr) * 2009-03-23 2010-09-24 Renault Sas Circuit d'echappement de vehicule automobile

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FR2792968B1 (fr) * 1999-04-29 2001-06-29 Westaflex Automobile Echangeur thermique en plastique et acier destine a etre dispose dans un circuit d'admission d'air d'un moteur, notamment dans un repartiteur comportant deux chambres et element du circuit d'admission d'air d'un moteur
US6647971B2 (en) * 1999-12-14 2003-11-18 Cooper Technology Services, Llc Integrated EGR valve and cooler
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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020156A1 (fr) * 1999-09-16 2001-03-22 Transtec Plc Systeme de recyclage de gaz d'echappement
WO2001021952A1 (fr) * 1999-09-20 2001-03-29 Siemens Canada Limited Adaptateur de collecteur de liquide de refroidissement servant a monter de maniere integree une soupape rge et un corps d'etrangleur sur un moteur
EP1233170A3 (fr) * 2001-02-20 2006-05-03 Nissan Motor Co., Ltd. Système de refroidissement de gaz d'échappement recirculé pour moteur à combustion interne
LU90761B1 (en) * 2001-04-20 2002-10-21 Delphi Tech Inc Device for exhaust gas recirculation
EP1251263A2 (fr) * 2001-04-20 2002-10-23 Delphi Technologies, Inc. Dispositif pour recirculation de gaz d'échappement
EP1251263A3 (fr) * 2001-04-20 2003-11-05 Delphi Technologies, Inc. Dispositif pour recirculation de gaz d'échappement
EP1489373A2 (fr) 2003-06-18 2004-12-22 Modine Manufacturing Company Echangeur de chaleur à plaques sans enveloppe et avec chambres collectrices
US7055584B2 (en) 2003-06-18 2006-06-06 Modine Manufacturing Company Heat exchanger with valve
DE10327481A1 (de) * 2003-06-18 2005-01-05 Modine Manufacturing Co., Racine Gehäuseloser Plattenwärmetauscher mit Sammelkasten
US7036565B2 (en) 2003-06-26 2006-05-02 Modine Manufacturing Company Exhaust heat exchanger
EP1491837A2 (fr) 2003-06-26 2004-12-29 Modine Manufacturing Company Echangeur de chaleur à plaques sans enveloppe
EP1626238A1 (fr) 2004-08-14 2006-02-15 Modine Manufacturing Company Echangeur de chaleur avec tubes plats
US7243707B2 (en) 2004-08-14 2007-07-17 Modine Manufacturing Company Flat tube exhaust heat exchanger with bypass
WO2006040053A1 (fr) * 2004-10-07 2006-04-20 Behr Gmbh & Co. Kg Echangeur de chaleur de gaz d'echappement refroidi par air, en particulier refroidisseur de gaz d'echappement pour vehicules automobiles
WO2007042209A1 (fr) * 2005-10-10 2007-04-19 Behr Gmbh & Co. Kg Dispositif pour recycler et refroidir les gaz d'echappement d'un moteur a combustion interne
EP2025910A1 (fr) 2007-07-30 2009-02-18 Cooper-Standard Automotive (Deutschland) GmbH Système de recirculation des gaz d'échappement
US8353274B2 (en) 2007-07-30 2013-01-15 Cooper-Standard Automotive (Deutschland) Gmbh Exhaust gas recirculation system
FR2943384A1 (fr) * 2009-03-23 2010-09-24 Renault Sas Circuit d'echappement de vehicule automobile
WO2010109104A1 (fr) * 2009-03-23 2010-09-30 Renault Sas Circuit d'echappement de vehicule automobile
US8769930B2 (en) 2009-03-23 2014-07-08 Renault S.A.S. Motor vehicle exhaust system

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Publication number Publication date
US6213105B1 (en) 2001-04-10
DE59803324D1 (de) 2002-04-18
DE19750588A1 (de) 1999-05-20
EP0916837B1 (fr) 2002-03-13
EP0916837A3 (fr) 2000-03-08
DE19750588B4 (de) 2016-10-13
EP0916837B2 (fr) 2011-10-26

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