EP0994247A2 - Arrangement d'une soupape pour la commande d'un flux de gaz d'échappement recyclé - Google Patents

Arrangement d'une soupape pour la commande d'un flux de gaz d'échappement recyclé Download PDF

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Publication number
EP0994247A2
EP0994247A2 EP99101651A EP99101651A EP0994247A2 EP 0994247 A2 EP0994247 A2 EP 0994247A2 EP 99101651 A EP99101651 A EP 99101651A EP 99101651 A EP99101651 A EP 99101651A EP 0994247 A2 EP0994247 A2 EP 0994247A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
valve
arrangement according
closure members
gas flow
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
EP99101651A
Other languages
German (de)
English (en)
Other versions
EP0994247B1 (fr
EP0994247A3 (fr
Inventor
Karl-Michael Frank
Frank Zimmermann
Martin Coenders
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
Gustav Wahler GmbH and Co KG
Original Assignee
Volkswagen AG
Gustav Wahler 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
Application filed by Volkswagen AG, Gustav Wahler GmbH and Co KG filed Critical Volkswagen AG
Publication of EP0994247A2 publication Critical patent/EP0994247A2/fr
Publication of EP0994247A3 publication Critical patent/EP0994247A3/fr
Application granted granted Critical
Publication of EP0994247B1 publication Critical patent/EP0994247B1/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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/71—Multi-way valves
    • 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
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/68—Closing members; Valve seats; Flow passages
    • 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
    • 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
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators

Definitions

  • the invention relates to a valve arrangement for controlling an externally recirculated exhaust gas flow on an internal combustion engine according to the preamble of claim 1.
  • Generic valve arrangements are known for example from WO 96/30635 and US 5,205,265 A.
  • WO 96/30635 several schematic arrangements of an internal combustion engine with an exhaust system and an exhaust gas cooler are known, an exhaust gas recirculation line branching off from the exhaust line, which in turn has a Y-shaped branch.
  • An exhaust gas cooler is used in one branch of this branch, while the other branch is a bypass for this exhaust gas cooler. Downstream of the exhaust gas cooler, these two branched paths are brought together again in order to introduce appropriately cooled or uncooled, recirculated exhaust gas into an air intake line of the internal combustion engine.
  • This combination has either one or two valves, which are controlled only by an electronic control device and are only shown schematically.
  • US 5,205,265 shows a comparable arrangement with a branch downstream of one Catalyst in an exhaust system, with a first valve via this branch recirculated exhaust gas flow either via an EGR cooler and then via conducts an exhaust filter or bypasses this EGR cooler.
  • an idle flow regulator is known from the non-generic German patent DE-621 945 known for an internal combustion engine in such a way that feeding into a mixture Line two opposing valve seats are incorporated, on which Put the valve disc on. These two valve plates are arranged on a common rod. With the throttle valve closed and therefore in the mixture line Vacuum affects the atmospheric ambient pressure on one of the valve disks in the opening direction and opens it against a spring assigned to the other valve plate to ensure a fresh air supply ensuring the idling. In this arrangement Both valve plates are fixed on the connecting rod and the opening movement both valve disks are always carried out together by one acting on one of the valve disks Pressure difference.
  • the object of the invention is to provide a generic valve arrangement, which enables an externally recirculated in a structurally simple design Exhaust gas flow either via an exhaust gas cooler or via a bypass To lead.
  • valve arrangement has two valve seats, which each assigned a closure member, preferably designed as a circular valve plate is, with both locking members actuated by a common actuating mechanism are and they are both elastically biased towards their closed position are also acted upon by the exhaust gas pressure of the exhaust gas stream.
  • the valve arrangement according to the invention advantageously has a double-seat valve provided which can be actuated by a common actuation mechanism either can release the cooled or the uncooled, recirculated exhaust gas flow, the resiliently bringing the closure members into abutment on their valve seat Comparatively low due to the support of the equivalent exhaust gas pressure be dimensioned and can be structurally simple.
  • the closure members are preferably designed as a circular valve plate on a common actuating rod of the actuating mechanism which can be actuated by an actuator arranged.
  • This actuating rod can preferably one of the two locking members enforce centrally.
  • One of the two closure members is preferably movable arranged on the operating rod.
  • the actuator is preferably assigned to the internal combustion engine controlled electronic control unit in dependence on several sensor signals, so that low-emission operation of the internal combustion engine is ensured.
  • appropriate control of the actuator also regulates the amount of exhaust gas recirculated.
  • valve seats of a common housing on the downstream side of two flow paths are arranged, with a common outflow path downstream of these valve seats is provided.
  • the drawing shows at its lower edge an exhaust pipe 1 of an internal combustion engine, not shown, from which a return pipe, generally designated 2, for external return of a part of the exhaust gas flow branches off into an air pipe 3, which can be seen at the upper edge of the picture, and supplies combustion air.
  • the return line 2 branches in a fork 4 into a line section 6 having an exhaust gas cooler 5 and into a line section 7 arranged parallel to it and acting as a bypass for the exhaust gas cooler 5.
  • the exhaust gas cooler 5 can have, for example, a cooling coil 8 through which cooling water flows.
  • the line sections 6 and 7 are formed in sections in a housing 9 having the valve arrangement according to the invention.
  • This has a channel-like flow path 10 for the exhaust gas stream flowing via the exhaust gas cooler 5 and, separate therefrom, a further channel-like flow path 11 for the exhaust gas stream flowing via the bypass (line section 7).
  • both flow paths 10 and 11 open into a valve seat 12 and 13 on the housing, which are controlled by closure members 16 designed as circular valve plates 14 and 15.
  • the one valve disk 14 is centrally located by a part of an actuating mechanism 17 Forming actuating rod 18 passes and is slidably mounted on this.
  • the actuating rod 18 is mounted in a guide bush 19 in the housing 9.
  • a lever mechanism 20 which is shown in a highly schematic manner, which has a double-acting actuator 21 at the end.
  • This actuator 21st is interposed by an electronic converter, not shown Control unit 25 controlled, which in turn is the engine control unit of the internal combustion engine is and a plurality of sensor signals and other, not shown Controls components of the internal combustion engine.
  • valve assembly is in the position shown in the drawing, that is, the return line 2 is by system of the two valve plates 14 and 15 locked on their assigned seats 12 and 13.
  • the exhaust pressure across the flow path 1, 4, 6 and 10 at the double valve acts on the sides 16 and 17, respectively, so that the valve plates 14 and 15 are thereby in their closed position are acted upon.
  • control element 25 is displaced into a further position via the control device 25 in such a way that the actuating rod 18 is displaced to the left, as a result of which the collar 23 engages in a form-fitting manner on the valve plate 14 and from the valve seat thereof 12 lifts up, at the same time collar 24 lifts the positive locking from valve plate 15. If cooled or uncooled exhaust gas is thus returned to the air line 3, it passes either via flow path 10 or flow path 11 into the outflow path 22 arranged downstream of the valve plates 14 and 15 in the housing 9.
  • the actuator 21 can be a double-acting pneumatic socket or an electrical one Actuator or as a magnetic signal box or, for example, as a double-acting hydraulic piston or be designed differently.
  • inner housing walls 30 and 31 are in the area of the valve seats 12 and 13 formed plan, so that these in a comparatively simple manner can be provided.
  • different design of the valve seats 12 and 13 possible, for example by flat contact the valve disk 14 and 15 on the housing walls 30 and 31.
  • the closure members 16 are held in their closed position by the exhaust gas pressure, so that the springs 28 and 29 applying the elastic prestress can be dimensioned correspondingly small.
  • the right-hand valve plate 15 opens, the left-hand spring 28 remains unaffected, so that only the low closing force of the spring 29 can be overcome by the actuating mechanism 17.
  • the situation is analogous with an opening movement of the valve disc 14 on the left.

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)
  • Fluid-Driven Valves (AREA)
  • Multiple-Way Valves (AREA)
EP99101651A 1998-03-23 1999-02-05 Arrangement d'une soupape pour la commande d'un flux de gaz d'échappement recyclé Expired - Lifetime EP0994247B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19812702A DE19812702A1 (de) 1998-03-23 1998-03-23 Ventilanordnung zur Steuerung eines rückgeführten Abgasstromes
DE19812702 1998-03-23

Publications (3)

Publication Number Publication Date
EP0994247A2 true EP0994247A2 (fr) 2000-04-19
EP0994247A3 EP0994247A3 (fr) 2001-04-11
EP0994247B1 EP0994247B1 (fr) 2004-07-28

Family

ID=7861980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101651A Expired - Lifetime EP0994247B1 (fr) 1998-03-23 1999-02-05 Arrangement d'une soupape pour la commande d'un flux de gaz d'échappement recyclé

Country Status (2)

Country Link
EP (1) EP0994247B1 (fr)
DE (2) DE19812702A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2209610A1 (es) * 2002-05-06 2004-06-16 Valeo Termico, S.A. Sistema para el control de la circulacion de gases, en especial de los gases de escape de un motor.
WO2008011973A1 (fr) * 2006-07-25 2008-01-31 Behr Gmbh & Co. Kg Dispositif de régulation du flux fluidique
EP1793114A3 (fr) * 2005-12-02 2008-10-15 Behr Thermot-tronik GmbH Appareil, en particulier vanne de recyclage des gaz d'échappement, pour commander un courant de fluide
EP1793113A3 (fr) * 2005-12-02 2008-10-15 Behr Thermot-tronik GmbH Vanne double pour dispositif de recyclage des gaz d'échappement
EP2067977A2 (fr) 2007-12-06 2009-06-10 Gustav Wahler GmbH u. Co.KG Soupape double pour un dispositif de recirculation des gaz d'échappement
US7581532B2 (en) 2004-11-26 2009-09-01 Siemens Aktiengesellschaft Method for recirculating a partial exhaust gas flow to an internal combustion engine of a motor vehicle
EP2559889A1 (fr) * 2011-08-18 2013-02-20 Wevista Echangeur de chaleur egr a vanne integree
CN109944720A (zh) * 2019-04-10 2019-06-28 温州市温纳汽车配件有限公司 一种废气再循环系统的旁通阀结构
WO2021037367A1 (fr) * 2019-08-29 2021-03-04 Pierburg Gmbh Système de recirculation des gaz d'échappement pour un moteur à combustion interne et procédé de régulation d'un système de recirculation des gaz d'échappement de ce type

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10028400A1 (de) * 2000-06-13 2001-12-20 Pierburg Ag Luftansaugvorrichtung für eine Brennkraftmaschine
FR2827011B1 (fr) * 2001-07-05 2003-10-03 Renault Vanne de commande pour un circuit de recirculation de gaz d'echappement d'un moteur a combustion interne
WO2003098026A1 (fr) * 2002-05-15 2003-11-27 Behr Gmbh & Co. Kg Echangeur de chaleur des gaz d'echappement a commutation
DE102004024650B4 (de) * 2004-05-18 2006-05-11 Pierburg Gmbh Regelbare Zwei-Wege-Ventilvorrichtung
DE102004025184B4 (de) * 2004-05-21 2008-01-31 Pierburg Gmbh Regelbare Zweiwegeventilvorrichtung
FR2872862B1 (fr) * 2004-07-09 2006-09-22 Renault Sas Dispositif de commande pour un circuit de recirculation de gaz d'echappement d'un moteur a combustion interne
DE102004040221B4 (de) 2004-08-19 2009-01-08 Pierburg Gmbh Regelbare Zwei-Wege-Ventilvorrichtung für eine Verbrennungskraftmaschine
KR101299523B1 (ko) 2005-02-07 2013-08-23 보그워너 인코포레이티드 디젤 엔진용 배기 스로틀-ｅｇｒ 밸브 모듈
FR2883037B1 (fr) * 2005-03-09 2010-08-27 Valeo Sys Controle Moteur Sas Dispositif de recirculation de gaz d'echappement comportant une vanne de regulation de debit et de raccordement selectif
DE102005038402A1 (de) * 2005-08-12 2007-02-15 Benteler Automobiltechnik Gmbh Abgaskühler für Kraftfahrzeuge
DE102007048301B4 (de) 2007-10-08 2011-07-07 Benteler Automobiltechnik GmbH, 33102 Ventilanordnung eines Abgasrückführungssystems
EP2133546B1 (fr) 2008-06-12 2011-08-17 Kia Motors Corporation Dispositif de recirculation des gaz d'échappement et véhicule
DE102008030785B4 (de) 2008-06-28 2012-10-31 Pierburg Gmbh Abgasrückführvorrichtung für eine Verbrennungskraftmaschine
DE102009036284A1 (de) 2009-08-06 2011-02-24 Pierburg Gmbh Ventilvorrichtung für eine Verbrennungskraftmaschine
DE102010006037B4 (de) 2010-01-27 2013-01-17 Pierburg Gmbh Ventilvorrichtung für eine Verbrennungskraftmaschine
DE102016200510A1 (de) * 2016-01-18 2017-07-20 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zur Abgasrückführung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69133098T2 (de) * 1990-11-06 2003-04-17 Mazda Motor Corp., Hiroshima Abgasrückführungssystem für eine Brennkraftmaschine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2209610A1 (es) * 2002-05-06 2004-06-16 Valeo Termico, S.A. Sistema para el control de la circulacion de gases, en especial de los gases de escape de un motor.
US7581532B2 (en) 2004-11-26 2009-09-01 Siemens Aktiengesellschaft Method for recirculating a partial exhaust gas flow to an internal combustion engine of a motor vehicle
EP1793114A3 (fr) * 2005-12-02 2008-10-15 Behr Thermot-tronik GmbH Appareil, en particulier vanne de recyclage des gaz d'échappement, pour commander un courant de fluide
EP1793113A3 (fr) * 2005-12-02 2008-10-15 Behr Thermot-tronik GmbH Vanne double pour dispositif de recyclage des gaz d'échappement
WO2008011973A1 (fr) * 2006-07-25 2008-01-31 Behr Gmbh & Co. Kg Dispositif de régulation du flux fluidique
EP2067977A2 (fr) 2007-12-06 2009-06-10 Gustav Wahler GmbH u. Co.KG Soupape double pour un dispositif de recirculation des gaz d'échappement
EP2067977A3 (fr) * 2007-12-06 2010-07-07 Gustav Wahler GmbH u. Co.KG Soupape double pour un dispositif de recirculation des gaz d'échappement
EP2559889A1 (fr) * 2011-08-18 2013-02-20 Wevista Echangeur de chaleur egr a vanne integree
CN109944720A (zh) * 2019-04-10 2019-06-28 温州市温纳汽车配件有限公司 一种废气再循环系统的旁通阀结构
CN109944720B (zh) * 2019-04-10 2024-05-31 温州市温纳汽车配件有限公司 一种废气再循环系统的旁通阀结构
WO2021037367A1 (fr) * 2019-08-29 2021-03-04 Pierburg Gmbh Système de recirculation des gaz d'échappement pour un moteur à combustion interne et procédé de régulation d'un système de recirculation des gaz d'échappement de ce type

Also Published As

Publication number Publication date
DE59910053D1 (de) 2004-09-02
EP0994247B1 (fr) 2004-07-28
EP0994247A3 (fr) 2001-04-11
DE19812702A1 (de) 1999-09-30

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