EP1686256B1 - Abgasrückführventil für ein Fahrzeug - Google Patents

Abgasrückführventil für ein Fahrzeug Download PDF

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Publication number
EP1686256B1
EP1686256B1 EP05001936A EP05001936A EP1686256B1 EP 1686256 B1 EP1686256 B1 EP 1686256B1 EP 05001936 A EP05001936 A EP 05001936A EP 05001936 A EP05001936 A EP 05001936A EP 1686256 B1 EP1686256 B1 EP 1686256B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
sealing
sealing member
accommodating space
disposed
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
EP05001936A
Other languages
English (en)
French (fr)
Other versions
EP1686256A1 (de
Inventor
Wen-Chuan Lai
Chun-Ching Chen
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.)
Kwang Yang Motor Co Ltd
Original Assignee
Kwang Yang Motor Co Ltd
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 Kwang Yang Motor Co Ltd filed Critical Kwang Yang Motor Co Ltd
Priority to AT05001936T priority Critical patent/ATE397152T1/de
Priority to DE602005007172T priority patent/DE602005007172D1/de
Priority to EP05001936A priority patent/EP1686256B1/de
Priority to ES05001936T priority patent/ES2305915T3/es
Publication of EP1686256A1 publication Critical patent/EP1686256A1/de
Application granted granted Critical
Publication of EP1686256B1 publication Critical patent/EP1686256B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
    • 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
    • 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
    • F02M26/63—Systems for actuating EGR valves the EGR valve being directly controlled by an operator
    • 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
    • F02M26/64—Systems for actuating EGR valves the EGR valve being operated together with an intake air throttle
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0276—Throttle and EGR-valve operated together
    • 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
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
    • 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
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators

Definitions

  • the invention relates to an exhaust gas recycling valve, and more particularly to an exhaust gas recycling valve that is manipulated by use of an accelerator cable.
  • the exhaust gas recycling device 1 is adapted for connection with a car engine 100 that includes an air intake pipe 200 and an exhaust pipe 300.
  • the exhaust gas recycling device 1 includes an exhaust gas recycling valve 11 configured as an electromagnetic valve and mounted on the car body, an electronic control unit (ECU) 12 for controlling opening and closing operations of the exhaust gas recycling valve 11, a first air-guiding pipe 13 in fluid communication with the exhaust pipe 300, and a second air-guiding pipe 14 in fluid communication with the air intake pipe 200.
  • ECU electronice control unit
  • the electronic control unit 12 closes the exhaust gas recycling valve 11
  • the first air-guiding pipe 13 is not in fluid communication with the second air-guiding pipe 14.
  • flow of exhaust gas from the exhaust pipe 300 into the air intake pipe 200 via the flow path of the first air-guiding pipe 13, the exhaust gas recycling valve 11 and the second air-guiding pipe 14 is prevented.
  • the exhaust gas recycling valve 11 is susceptible to damage. If extreme damage occurs, the exhaust gas recycling valve 11 may entirely malfunction, in which case exhaust gas recycling is not possible.
  • FIG. 2 another exhaust gas recycling device 2 is shown to include an exhaust gas recycling valve 3 in fluid communication with both an air intake pipe 500 and an air-guiding pipe 601 that is connected fixedly to and that is in fluid communication with an exhaust pipe (not shown).
  • the exhaust gas recycling valve 3 includes a valve body 31, a sealing member 32, and a diaphragm unit 33 for controlling movement of the sealing member 32.
  • the valve body 31 has an interior chamber 311, a fixed first connecting pipe 312 in fluid communication with the interior chamber 311, and an exhaust gas passage 313 in fluid communication with the air-guiding pipe 601.
  • the sealing member 32 is disposed movably within the exhaust gas passage 313, and is driven by the diaphragm unit 33 to open or close the exhaust gas passage 313.
  • the diaphragm unit 33 is disposed in the interior chamber 311, and includes a diaphragm 331 dividing the interior chamber 311 into two chamber portions, a resilient member 332 configured as a coiled compression spring and disposed within one of the chamber portions, and a connecting rod 333 interconnecting the diaphragm 331 and the sealing member 32.
  • the resilient member 332 presses against the diaphragm 331 so as to bias the sealing member 32 to close the exhaust gas passage 313.
  • the control unit 4 includes a second connecting pipe 41 that has two opposite ends which are connected respectively and fixedly to and which are in fluid communication with the air intake pipe 500 and the first connecting pipe 312.
  • a pressure-regulating valve 42 is disposed on the second connecting pipe 41 for automatically adjusting the negative pressure in the second connecting pipe 41.
  • the pressure-regulating valve 42 can automatically compensate for the negative pressure from the air intake pipe 500 so as to overcome the biasing force of the resilient member 332.
  • the diaphragm 331 and the sealing member 32 are moved by means of the negative pressure from the connecting pipe 41 so as to open the exhaust gas passage 313. This causes the exhaust gas to flow from the exhaust pipe into the air intake pipe 500 through the air-guiding pipe 601 and the exhaust gas passage 313.
  • a drawback of this configuration is that since the exhaust gas recycling valve 3 is disposed in proximity to an engine (not shown) and the temperature of the engine is relatively high, the diaphragm 331 is susceptible to damage, thereby reducing the service life of the exhaust gas recycling valve 3. Furthermore, the exhaust gas recycling valve 3 needs to be made from a high temperature-resistant material. Therefore, the manufacturing costs of the exhaust gas recycling valve 3 are increased.
  • EP 0 484 656 discloses a device for controlling introduction of burned gas into a combustion chamber of a power machine.
  • the device includes an intake manifold and an exhaust manifold.
  • a throttle is disposed in the intake manifold.
  • a shaft of the throttle is provided with a gear ring in engagement with a rack.
  • the rack is fixed to a cam disk which is in turn operatively connected to an accelerator pedal for reciprocal movement of the rack and rotation of the throttle.
  • the exhaust manifold is connected via a conduit to a stop valve.
  • the stop valve accommodates an actuator having at its one end a closing member engageable with a valve seat.
  • the other end of the actuator is in engagement with a cam track of the cam disk.
  • the movement of the cam disk causes the closing member to be moved to a closing position where the member is in engagement with the valve seat.
  • the cam disk is not fastened to the actuator.
  • US 5, 056, 309 discloses an internal combustion engine including an exhaust recycling system, wherein a valve member of a metering valve (which cooperates with a valve seat) is connected via a Bowden cable and an air throttle valve to a accelerator cable, which is in turn fastened to an accelerator pedal.
  • JP 59-37253 A discloses an exhaust gas recirculation apparatus for an internal combustion engine, which comprises a control valve including a rod for intake and another rod for exhaust.
  • the control valve is connected via a wire and a throttle valve to an accelerator cable, which is in turn fastened to an accelerator pedal.
  • the throttle valve and therefore the lever thereof are actuated by the accelerator cable, thereby moving the wire and the intake valve rod.
  • the object of this invention is to provide an exhaust gas recycling valve that can overcome the drawbacks associated with the prior art.
  • an exhaust gas recycling valve for a vehicle includes a valve body, a sealing unit and a control cable.
  • the sealing unit includes a sealing member mounted movably within an accommodating space in the valve body and disposed at a sealing position.
  • the control cable is fastened to the sealing unit and an accelerator cable. When the accelerator cable is operated, the sealing member moves to a non-sealing position.
  • an exhaust gas recycling valve 5 for a vehicle (not shown), such as a motorcycle, according to this invention is shown to include a valve body 6, a sealing unit 7 and a control cable 8.
  • the vehicle includes an air intake pipe 500 of an air intake system for feeding fresh air into an engine (not shown), an exhaust pipe (not shown) of an exhaust system for discharging exhaust gas from the engine, an air-guiding pipe 601 connected fixedly to and in fluid communication with the exhaust pipe, a throttle valve 700 disposed rotatably in the air intake pipe 500, a handle unit 800, and an accelerator cable 900 interconnecting the handle unit 800 and the throttle valve 700.
  • the exhaust gas recycling valve 5 is disposed between the air intake pipe 500 and the air-guiding pipe 601 so as to allow for flow of the exhaust gas from the air-guiding pipe 601 into the air intake pipe 500 via the exhaust gas recycling valve 5.
  • the valve body 6 is cylindrical, and has an accommodating space 61, a gas outlet 62 in fluid communication with the accommodating space 61, and a gas inlet 63 in fluid communication with both the accommodating space 61 and the air-guiding pipe 601.
  • Each of the accommodating space 61 and the gas outlet 62 has a circular cross section.
  • the gas outlet 62 has a diameter smaller than that of the accommodating space 61.
  • the valve body 6 further has a shoulder 64 defined between the accommodating space 61 and the gas outlet 62.
  • the accommodating space 61 has a large-diameter portion 611 in fluid communication with the gas inlet 63, a small-diameter portion 612 connected to an end of the large-diameter portion 611 and having a diameter smaller than that of the large-diameter portion 611, and a frustoconical portion 613 connected to an opposite end of the large-diameter portion 611.
  • the frustoconical portion 613 has a large-diameter end connected to the large-diameter portion 611, and a small-diameter end connected to the gas outlet 62 and having a diameter smaller than that of the large-diameter end.
  • the sealing unit 7 includes a sliding member 71, a sealing member 72, and a resilient member 73.
  • the sealing member 72 is mounted movably within the accommodating space 61, and is disposed at a sealing position, where the gas outlet 62 is closed so as to prevent flow of the exhaust gas from the air-guiding pipe 601 into the air intake pipe 500 through the exhaust gas recyclingvalve 5.
  • the sealingmember 72 is disposed within the large-diameter portion 611.
  • the resilient member 73 is disposed at an end portion of the small-diameter portion 612 distal from the large-diameter portion 611.
  • the sliding member 71 is received fittingly and movably within the small-diameter portion 612 of the accommodating space 61, is disposed between the sealing member 72 and the resilient member 73, and is formed with a counterbore therethrough.
  • the counterbore has a thick bore portion 711 and a thin bore portion 712.
  • the thin bore portion 712 has a diameter smaller than that of the thick bore portion 711.
  • the sealing member 72 includes a connecting portion 721, a frustoconical sealing portion 722 and a frustoconical insert portion 723.
  • the sealing portion 722 has two opposite ends connected respectively and fixedly to the connecting portion 721 and the insert portion 723.
  • the connecting portion 721 is connected fixedly to the sliding member 71, and covers the thick bore portion 711 of the counterbore in the sliding member 71.
  • the sealing portion 722 is biased by the resilient member 73 to press against the shoulder 64 of the valve body 6 so as to close the gas outlet 62.
  • the insert portion 723 is disposed entirely within the gas outlet 62 in the valve body 6, and has a diameter that reduces gradually in a direction away from the sealing portion 722.
  • the resilient member 73 is configured as a coiled compression spring, and is disposed in the small-diameter portion 612 of the accommodating space 61 so as to bias the sliding element 71 and the sealing member 72 to move toward the gas outlet 62, thereby closing the gas outlet 62.
  • the control cable 8 has two opposite ends fastened respectively to the sliding member 71 and the accelerator cable 900.
  • the control cable 8 extends through the thin bore portion 712, and is formed with a stop element 81.
  • the stop element 81 is disposed in the thick bore portion 711, and is sized so as not to move into the thin bore portion 712. Thus, the stop element 81 is confined between the sliding member 71 and the sealing member 72.
  • the sealing member 72 moves to a non-sealing position shown in Fig. 4 , where the exhaust gas recycling valve 5 is opened so as to allow for flow of the exhaust gas from the air-guiding pipe 601 into the air intake pipe 500 through the exhaust gas recycling valve 5.
  • the insert portion 723 of the sealing member 72 is disposed only partially within the gas outlet 62. This allows for flow of the exhaust gas from the exhaust gas recycling valve 5 into the air intake pipe 500 through a space between the insert portion 723 and a wall of the valve body 6 defining the gas outlet 62. As such, the rate of the exhaust gas flowing through the gas outlet 62 can be adjusted by changing the non-sealing position of the sealing member 72.
  • the exhaust gas recycling valve 5 is controlled mechanically by the accelerator cable 900, and therefore is not affected by the high temperature of exhaust gas. As a result, the exhaust gas recycling device 5 has a long service life.

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

Claims (5)

  1. Fahrzeug mit einem Abgasrückführventil (5), wobei das Fahrzeug aufweist: einen Motor (100), ein Lufteinlaßsystem (500), das mit dem Motor (100) verbunden ist, um Strömung von Luft in den Motor (100) durch das Lufteinlaßsystem (500) zu ermöglichen, ein Auslaßsystem, das mit dem Motor (100) verbunden ist, um Strömung von Abgas aus dem Motor (100) durch das Auslaßsystem zu ermöglichen, und einen Gaszug (900), wobei das Abgasrückführventil (5) zwischen dem Lufteinlaßsystem (500) und dem Auslaßsystem angeordnet ist, um Strömung des Abgases aus dem Auslaßsystem in das Lufteinlaßsystem (500) über das Abgasrückführventil (5) zu ermöglichen, wobei das Abgasrückführventil (5) aufweist:
    einen Ventilkörper (6) mit einem Aufnahmeraum (61), einen Gasauslaß (62) in Fluidverbindung mit dem Aufnahmeraum (61) und einen Gaseinlaß (63) in Fluidverbindung sowohl mit dem Aufnahmeraum (61) als auch mit dem Auslaßsystem;
    eine Dichtungseinheit (7) mit einem Dichtungsteil (72), das im Aufnahmeraum (61) beweglich angeordnet und das in einer Dichtungsposition angeordnet ist, in der der Gasauslaß (62) geschlossen ist, um Strömung des Abgases aus dem Auslaßsystem in das Lufteinlaßsystem (500) durch das Abgasrückführventil (5) zu verhindern; und
    ein Steuerkabel (8) mit zwei entgegengesetzten Enden, die an der Dichtungseinheit (72) bzw. am Gaszug (900) so befestigt sind, daß sich bei Betätigung des Gaszugs (900) das Dichtungsteil (72) in eine Nichtdichtungsposition bewegt, in der das Abgasrückführventil (5) geöffnet ist, um die Strömung des Abgases aus dem Auslaßsystem in das Lufteinlaßsystem (500) durch das Abgasrückführventil (5) zu ermöglichen,
    dadurch gekennzeichnet, daß
    der Aufnahmeraum (61) aufweist: einen Abschnitt (611) mit großem Durchmesser in Fluidverbindung mit dem Gaseinlaß (63), einen Abschnitt (612) mit kleinem Durchmesser, der mit einem Ende des Abschnitts (611) mit großem Durchmesser verbunden ist und einen kleineren Durchmesser als der Abschnitt (611) mit großem Durchmesser hat, und einen kegelstumpfförmigen Abschnitt (613), der mit einem entgegengesetzten Ende des Abschnitts (611) mit großem Durchmesser verbunden ist, wobei der kegelstumpfförmige Abschnitt (613) ein Ende mit großem Durchmesser, das mit dem Abschnitt (611) mit großem Durchmesser verbunden ist, und ein Ende mit kleinem Durchmesser hat, das mit dem Gasauslaß (62) verbunden ist und einen kleineren Durchmesser als das Ende mit großem Durchmesser hat; und
    die Dichtungseinheit (7) ferner aufweist: ein Schiebeteil (71), das im Abschnitt (612) mit kleinem Durchmesser des Aufnahmeraums (61) passend und beweglich aufgenommen und mit dem Dichtungsteil (72) fest verbunden ist, und ein elastisches Teil (73), das im Abschnitt (612) mit kleinem Durchmesser des Aufnahmeraums (61) angeordnet ist, um das Schiebeteil (71) und das Dichtungsteil (72) so vorzuspannen, daß sie sich zum Gasauslaß (62) bewegen, wodurch der Gasauslaß (62) geschlossen ist, wobei das Steuerkabel (8) am Schiebeteil (71) befestigt ist.
  2. Fahrzeug nach Anspruch 1, ferner dadurch gekennzeichnet, daß der Aufnahmeraum (61) und der Gasauslaß (62) im Ventilkörper (6) jeweils einen kreisförmigen Querschnitt haben, wobei der Ventilkörper (6) ferner eine Schulter (64) hat, die zwischen dem Aufnahmeraum (61) und dem Gasauslaß (62) gebildet ist, der Gasauslaß (62) einen kleineren Durchmesser als der Aufnahmeraum (61) hat, und das Dichtungsteil (72) einen kegelstumpfförmigen Dichtungsabschnitt (722) hat, der an der Schulter (64) des Ventilkörpers (6) anstößt, um den Gasauslaß (62) zu schließen, wenn das Dichtungsteil (72) in der Dichtungsposition angeordnet ist.
  3. Fahrzeug nach Anspruch 1, ferner dadurch gekennzeichnet, daß das Dichtungsteil (72) einen kegelstumpfförmigen Einsatzabschnitt (723) hat, der teilweise im Gasauslaß (62) angeordnet ist, wenn das Dichtungsteil (72) in der Nichtdichtungsposition angeordnet ist, um Strömung des Abgases aus dem Abgasrückführventil (5) in das Lufteinlaßsystem (500) durch einen Raum zwischen dem Einsatzabschnitt (723) und einer Wand des Ventilkörpers (6) zu ermöglichen, die den Gasauslaß (62) bildet.
  4. Fahrzeug nach Anspruch 1, ferner dadurch gekennzeichnet, daß das Schiebeteil (71) eine Versenkung hat, die durchgehend gebildet ist, wobei die Versenkung einen dicken Bohrungsabschnitt (711) und einen dünnen Bohrungsabschnitt (712) hat, der einen kleineren Durchmesser als der dicke Bohrungsabschnitt (711) hat, sich das Steuerkabel (8) durch den dünnen Bohrungsabschnitt (712) erstreckt und mit einem Anschlagelement (81) ausgebildet ist, das im dicken Bohrungsabschnitt (711) angeordnet und das so bemessen ist, daß es sich nicht in den dünnen Bohrungsabschnitt (712) bewegt, und das Dichtungsteil (72) den dicken Bohrungsabschnitt (711) abdeckt, um das Anschlagelement (81) zwischen dem Schiebeteil (71) und dem Dichtungsteil (72) einzuschließen.
  5. Fahrzeug nach Anspruch 1, ferner dadurch gekennzeichnet, daß das Dichtungsteil (72) im Abschnitt (611) mit großem Durchmesser beweglich angeordnet ist, wobei das elastische Teil (73) an einem Endabschnitt des Abschnitts (612) mit kleinem Durchmesser distal vom Abschnitt (611) mit großem Durchmesser angeordnet und als Schraubendruckfeder konfiguriert ist und das Schiebeteil (71) zwischen dem Dichtungsteil (72) und dem elastischen Teil (73) angeordnet ist.
EP05001936A 2005-01-31 2005-01-31 Abgasrückführventil für ein Fahrzeug Not-in-force EP1686256B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT05001936T ATE397152T1 (de) 2005-01-31 2005-01-31 Abgasrückführventil für ein fahrzeug
DE602005007172T DE602005007172D1 (de) 2005-01-31 2005-01-31 Abgasrückführventil für ein Fahrzeug
EP05001936A EP1686256B1 (de) 2005-01-31 2005-01-31 Abgasrückführventil für ein Fahrzeug
ES05001936T ES2305915T3 (es) 2005-01-31 2005-01-31 Valvula de recurculacion de gases de escape para un vehiculo.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05001936A EP1686256B1 (de) 2005-01-31 2005-01-31 Abgasrückführventil für ein Fahrzeug

Publications (2)

Publication Number Publication Date
EP1686256A1 EP1686256A1 (de) 2006-08-02
EP1686256B1 true EP1686256B1 (de) 2008-05-28

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Family Applications (1)

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EP05001936A Not-in-force EP1686256B1 (de) 2005-01-31 2005-01-31 Abgasrückführventil für ein Fahrzeug

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EP (1) EP1686256B1 (de)
AT (1) ATE397152T1 (de)
DE (1) DE602005007172D1 (de)
ES (1) ES2305915T3 (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2018051260A1 (en) * 2016-09-15 2018-03-22 Tvs Motor Company Limited Exhaust gas recirculation system for an engine

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AT504667B1 (de) * 2007-02-07 2008-07-15 Forschungsgesellschaft Fuer Ve Vorrichtung zur abgasrückführung für einen verbrennungsmotor

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Publication number Priority date Publication date Assignee Title
JPS5937253A (ja) * 1982-08-24 1984-02-29 Nissan Motor Co Ltd 内燃機関の排気ガス還流装置
US5056309A (en) * 1987-07-03 1991-10-15 Robert Bosch Gmbh Internal combustion engine, particularly otto engine

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Publication number Priority date Publication date Assignee Title
JPS5937253A (ja) * 1982-08-24 1984-02-29 Nissan Motor Co Ltd 内燃機関の排気ガス還流装置
US5056309A (en) * 1987-07-03 1991-10-15 Robert Bosch Gmbh Internal combustion engine, particularly otto engine

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Title
PATENT ABSTRACTS OF JAPAN *

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018051260A1 (en) * 2016-09-15 2018-03-22 Tvs Motor Company Limited Exhaust gas recirculation system for an engine

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ATE397152T1 (de) 2008-06-15
DE602005007172D1 (de) 2008-07-10
ES2305915T3 (es) 2008-11-01
EP1686256A1 (de) 2006-08-02

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