EP1526271B1 - Soupape de recirculation de gaz d'échappement - Google Patents

Soupape de recirculation de gaz d'échappement Download PDF

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Publication number
EP1526271B1
EP1526271B1 EP03024508A EP03024508A EP1526271B1 EP 1526271 B1 EP1526271 B1 EP 1526271B1 EP 03024508 A EP03024508 A EP 03024508A EP 03024508 A EP03024508 A EP 03024508A EP 1526271 B1 EP1526271 B1 EP 1526271B1
Authority
EP
European Patent Office
Prior art keywords
valve
exhaust gas
drive
gas recirculation
drive element
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
EP03024508A
Other languages
German (de)
English (en)
Other versions
EP1526271A1 (fr
Inventor
Christoph Thiery
Bernhard Klipfel
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.)
Cooper Standard Automotive Deutschland GmbH
Original Assignee
Cooper Standard Automotive Deutschland GmbH
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
Priority to DE50307471T priority Critical patent/DE50307471D1/de
Priority to ES03024508T priority patent/ES2288205T3/es
Priority to PT03024508T priority patent/PT1526271E/pt
Priority to AT03024508T priority patent/ATE364785T1/de
Priority to EP03024508A priority patent/EP1526271B1/fr
Application filed by Cooper Standard Automotive Deutschland GmbH filed Critical Cooper Standard Automotive Deutschland GmbH
Priority to CNB2004100820990A priority patent/CN100359153C/zh
Priority to KR1020040085435A priority patent/KR100677923B1/ko
Publication of EP1526271A1 publication Critical patent/EP1526271A1/fr
Application granted granted Critical
Publication of EP1526271B1 publication Critical patent/EP1526271B1/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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • 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 an exhaust gas recirculation valve according to the preamble of claim 1.
  • the US 4,646,705 describes an exhaust gas recirculation valve in which a disc-shaped valve member is mounted eccentrically on a spindle, so that in addition to a lifting movement, which is required for opening the valve, a forced rotational movement takes place, which is used in such a way that impurities are abraded.
  • An exhaust gas recirculation valve according to the preamble of claim 1 is known from EP 1 111 227 A2 known and provides in this case, that a valve element is at least at the beginning of the opening process not only raised, but also rotated. This can also be solved in the context of the opening process impurities and adhesions.
  • the invention has for its object to provide an improved exhaust gas recirculation valve, which works reliably even with larger contaminants.
  • a drive member is rotatably driven by the rotary drive and constitutes a part of the rotary-stroke conversion mechanism. Further, the drive member which, as mentioned, is rotatably driven by the rotary drive, by the rotary-stroke conversion mechanism as a result of rotation and lifting lowered.
  • the drive element raises and lowers a valve member to effect opening and closing of the valve.
  • the drive element and a valve element in which e.g. may be a valve lifter with a valve plate mounted thereon, connected such that lifting and lowering of the drive element or generally a translatory movement is transmitted to the valve element.
  • the drive element is rotatably connected to the valve element at least in the opening direction.
  • This rotatable connection can be direct or indirect be provided.
  • the valve element can rotate when opening together with the drive element, but it is not necessarily rotated when opening.
  • the drive element is rotatable at least in the opening direction with respect to the (for example as a result of adhesions) stuck valve member. Therefore, the rotation of the driving member is not prevented even when a seizing of the valve element, and by the rotation-stroke conversion mechanism, this rotation is converted into a lifting movement, so that the valve can be opened smoothly. Overall, a trouble-free operation can be guaranteed.
  • the exhaust gas recirculation valve according to the invention can be effected by the force acting between the drive element and the valve element friction, with which force should be a rotation of the valve element, and from which threshold a rotation between the drive element and the valve element is to be allowed to block avoid.
  • a common collar of the valve element in the region of a shoulder of the drive element can be inserted into this.
  • a plate spring may be interposed, which serves, however, the axial fixation. Between the valve element and the drive element, this spring does not act, so that even with the last-described arrangement there is a freely rotatable connection with the exception of the friction.
  • This measure ie a completely free rotation between valve element and drive element is provided in particular in the modification in which the drive element is not part of the rotary-hub conversion mechanism.
  • Such an embodiment is conceivable despite the preceding embodiments and is considered in particular with a completely freely rotatable connection between the valve and drive element as the subject of the application.
  • the inventive, rotatable, direct or indirect connection between the drive element and valve element can also be provided in an exhaust gas recirculation valve having a translational drive, for example, a solenoid, instead of the rotary drive.
  • a rotation of the valve element may also be provided. This can be achieved by a rotary-hub conversion mechanism that converts translatory drive motion into at least slight rotation of the valve element. In other words, a drive element is rotated in this case as a result of the translational movement.
  • a rotatable connection between the drive element and the valve element can be provided in order not to forcibly provide the rotation for loosening contaminants, but also in the event that a rotation is blocked by adhesions, the valve by the translational movement to be able to open.
  • a bearing bush has proved to be advantageous.
  • the friction described above can be realized.
  • a desired characteristic with regard to the transmission of frictional force can be realized by the choice of suitable fit ratios between said elements and / or suitable materials.
  • the drive element in all directions, ie, in the closing direction, with respect to the valve element is rotatable.
  • a screw track is preferred in which at least one fixedly mounted and rotatably mounted roller is arranged.
  • the drive element in this preferred case, for example, a groove in the form of a comparatively short helix is provided.
  • a groove flank is supported on the roller arranged in the groove and, as a result of the rotation of the drive element, causes a translatory movement of the same, which can be used for opening and closing the valve.
  • valve element is a valve tappet with a valve disk mounted thereon.
  • the valve stem is rotatable, but axially fixedly connected to the drive element in order to realize the advantages described above.
  • the valve stem which in this case is part of the rotary-hub conversion mechanism, is firmly connected in all respects with a drive element, and the valve disk with respect to the valve stem is rotatable. This also makes it possible to realize opening of the valve by means of a lifting movement even when the valve disk adheres to its valve seat, which would result in blockage of the valve in the event of a forcibly provided rotation of the valve disk.
  • the exhaust gas recirculation valve 10 shown in FIG. 1 initially has a number of housing parts and connections for the existing bearing feedback sensors and the like in its upper region.
  • the description may focus on how the actuation occurs due to a rotation of a gear 12.
  • any drive such as a torque or DC motor is conceivable.
  • a so-called drive element is driven in rotation. In the illustrated example, this is done via said gear 12, which is connected via two driving pins 46, of which only one can be seen in the figure, with the drive element 14, which has substantially the shape of a sleeve.
  • a spring 48 is first provided, which is designed as a torsion spring and biases the drive element in the closed state, so that even with a malfunction of the drive reliable closure is possible.
  • This spring is a spiral or so-called watchmaker spring, which is deformed at an opening of the valve such that it applies a rotational force in the closing direction.
  • To the Outer circumference of the drive member 14 is formed substantially in the form of a groove 16 is a track which constitutes a portion of a helix.
  • the roller 18 is fixedly mounted on an axis 20 with respect to the housing 22 and rotatable about the axis 20 in this screwing 16 in the example shown.
  • the drive member 14 By the rotation of the drive member 14 and the rolling of the roller 18 in the helical path on the outer periphery of the drive member 14, the drive member 14 is pressed down. By fixed in the axial direction of the valve stem 32 in the drive element this is also pressed down so that the valve plate 26 again comes to the valve seat 28, and the valve is closed.
  • the valve element in the case of the valve tappet 32 shown, is rotatably mounted with respect to the drive element 14. This is done in the example shown by means of the bearing bush 36. Starting from the closed State of the valve, as shown in Fig. 1, thus, the drive member 14 may rotate with respect to the possibly stuck due to bonding valve member 32. Since this rotational movement is also made possible with an adhesive valve element, the rotary-stroke conversion mechanism in the form of the screw 16 and roller 18 act and a lifting of the drive element 14 and thus opening of the valve take place. This allows a trouble-free opening and overall trouble-free operation can be realized. It should be added that in a lower region of the valve tappet 32, these dogs can be displaceably mounted in suitable bearing bushes 38 which are arranged in the housing 22. In this case, a seal can also be provided in an advantageous manner.
  • the exhaust gas recirculation valve 10 is additionally shown in a perspective view and with other components, such as a rotary motor 40.
  • the rotation of the motor is transmitted via different gears 42 to a gear 12, which is arranged somewhat differently than in the embodiment of Fig. 1, and from there to the drive member 14.
  • the drive element 14 can be designed in two parts for manufacturing reasons. This is realized, in particular, as shown by way of example, if the bipartition of the drive element 14 also results in a division of the screwing track 16 so that, in other words, it is formed by the combination of the two parts of the drive element.
  • a torsion spring 44 it can be ensured by a torsion spring 44 that the valve is biased into a closed position, so that even with a fault in the region of the rotary drive 40, a reliable closing takes place.

Claims (6)

  1. Soupape de recirculation des gaz d'échappement (10), comprenant :
    un entraînement rotatif (40),
    un mécanisme de conversion rotation-translation (14, 18),
    un élément d'entraînement (14), susceptible d'être entrainé en rotation par l'entraînement rotatif (40), faisant partie du mécanisme de conversion rotation-translation (14, 18) et susceptible d'être déplacé en translation par celui-ci, par suite d'une rotation, et
    un élément de soupape (32, 26),
    caractérisée en ce que
    l'élément d'entraînement (14) est relié à l'élément de soupape (32) de façon à pouvoir tourner librement, à l'exception du frottement, au moins dans le sens de l'ouverture.
  2. Soupape de recirculation des gaz d'échappement selon la revendication 1, caractérisée en ce qu'une douille de palier (36) est prévu entre l'élément d'entraînement (14) et l'élément de soupape (32).
  3. Soupape de recirculation des gaz d'échappement selon la revendication 1 ou 2, caractérisée en ce que l'élément d'entraînement (14) est susceptible de tourner également dans le sens de la fermeture par rapport à l'élément de soupape (32).
  4. Soupape de recirculation des gaz d'échappement selon au moins l'une des revendications précédentes, caractérisée en ce que le mécanisme de conversion rotation-translation (14, 18) présente une piste de vissage (16) dans laquelle est disposé au moins un galet (18) monté à rotation, stationnaire.
  5. Soupape de recirculation des gaz d'échappement selon au moins l'une des revendications précédentes, caractérisée en ce que l'élément de soupape est un poussoir de soupape (32), avec un plateau de soupape (26) monté sur celui-ci.
  6. Soupape de recirculation des gaz d'échappement selon au moins l'une des revendications précédentes, caractérisée en ce que l'élément d'entraînement (14) est réalisé en deux parties.
EP03024508A 2003-10-24 2003-10-24 Soupape de recirculation de gaz d'échappement Expired - Lifetime EP1526271B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES03024508T ES2288205T3 (es) 2003-10-24 2003-10-24 Valvula de realimentacion de gases de escape.
PT03024508T PT1526271E (pt) 2003-10-24 2003-10-24 Válvula de recirculação de gases de escape.
AT03024508T ATE364785T1 (de) 2003-10-24 2003-10-24 Abgasrückführventil
EP03024508A EP1526271B1 (fr) 2003-10-24 2003-10-24 Soupape de recirculation de gaz d'échappement
DE50307471T DE50307471D1 (de) 2003-10-24 2003-10-24 Abgasrückführventil
CNB2004100820990A CN100359153C (zh) 2003-10-24 2004-10-24 废气再循环阀
KR1020040085435A KR100677923B1 (ko) 2003-10-24 2004-10-25 배기가스 재순환 밸브

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03024508A EP1526271B1 (fr) 2003-10-24 2003-10-24 Soupape de recirculation de gaz d'échappement

Publications (2)

Publication Number Publication Date
EP1526271A1 EP1526271A1 (fr) 2005-04-27
EP1526271B1 true EP1526271B1 (fr) 2007-06-13

Family

ID=34384635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03024508A Expired - Lifetime EP1526271B1 (fr) 2003-10-24 2003-10-24 Soupape de recirculation de gaz d'échappement

Country Status (7)

Country Link
EP (1) EP1526271B1 (fr)
KR (1) KR100677923B1 (fr)
CN (1) CN100359153C (fr)
AT (1) ATE364785T1 (fr)
DE (1) DE50307471D1 (fr)
ES (1) ES2288205T3 (fr)
PT (1) PT1526271E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9045997B2 (en) 2010-08-12 2015-06-02 Halla Visteon Climate Control Corporation Actuator for a wastegate or a variable turbine geometry device and method of actuation

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502008002568D1 (de) 2008-10-06 2011-03-24 Cooper standard automotive deutschland gmbh Abgasrückführventil
FR2937109B1 (fr) * 2008-10-14 2012-12-14 Valeo Sys Controle Moteur Sas Vanne egr comportant une tole de support
FR2947027B1 (fr) * 2009-06-17 2011-07-15 Valeo Sys Controle Moteur Sas Dispositif de transformation de mouvement et vanne comportant un tel dispositif
EP2418373A1 (fr) 2010-08-12 2012-02-15 Cooper-Standard Automotive (Deutschland) GmbH Actionneur et soupape de recyclage de gaz d'échappement, soupape de décharge ou géométrie de turbines variable d'une turbosoufflante dotée d'un actionneur
DE102011001535A1 (de) * 2011-03-24 2012-09-27 Pierburg Gmbh Kfz-Abgasrückführungs-Ventilanordnung
FR2978998B1 (fr) 2011-08-08 2013-07-26 Sonceboz Automotive Sa Dispositif de dosage compact
CN104165104B (zh) * 2013-05-16 2018-05-11 福特汽车萨纳伊股份有限公司 排气再循环系统
CN104455678A (zh) * 2014-11-28 2015-03-25 长城汽车股份有限公司 Egr阀驱动机构
FR3047535B1 (fr) 2016-02-09 2018-03-02 Sonceboz Automotive Sa Vanne de dosage lineaire
FR3068424B1 (fr) * 2017-06-30 2020-02-14 Valeo Systemes De Controle Moteur Dispositif d'actionnement pour actionneur de controle moteur
FR3071898B1 (fr) * 2017-10-04 2020-07-10 Valeo Systemes De Controle Moteur Actionneur et vanne de circulation de fluide le comprenant
WO2020015812A1 (fr) * 2018-07-16 2020-01-23 Pierburg Gmbh Ensemble soupape pour un insert dans la zone d'un véhicule automobile et vanne de recirculation des gaz d'échappement
CN109611244A (zh) * 2019-02-01 2019-04-12 联合汽车电子有限公司 废气再循环阀

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US1454423A (en) * 1921-03-07 1923-05-08 Continental Engineering Corp Rotary valve for internal-combustion engines
US1451423A (en) * 1922-05-27 1923-04-10 Royal Typewriter Co Inc Typewriting machine
US4346728A (en) * 1980-07-28 1982-08-31 Anchor/Darling Industries, Inc. Automated dual mode valve actuator
DE69901675T2 (de) * 1998-10-16 2003-01-23 Koninkl Philips Electronics Nv Massagevorrichtung mit saugkammer und zwei rollkörper
DE19961756C1 (de) * 1999-12-21 2001-04-19 Siebe Automotive Deutschland Gmbh Abgasrückführventil
DE10044898A1 (de) * 2000-09-12 2002-04-25 Berger Lahr Gmbh & Co Kg Ventil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9045997B2 (en) 2010-08-12 2015-06-02 Halla Visteon Climate Control Corporation Actuator for a wastegate or a variable turbine geometry device and method of actuation

Also Published As

Publication number Publication date
PT1526271E (pt) 2007-06-29
KR100677923B1 (ko) 2007-02-06
CN1641203A (zh) 2005-07-20
DE50307471D1 (de) 2007-07-26
ATE364785T1 (de) 2007-07-15
KR20050039684A (ko) 2005-04-29
CN100359153C (zh) 2008-01-02
ES2288205T3 (es) 2008-01-01
EP1526271A1 (fr) 2005-04-27

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