EP0852670B1 - Elektrisch betriebenes abgasrückführventil - Google Patents

Elektrisch betriebenes abgasrückführventil Download PDF

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Publication number
EP0852670B1
EP0852670B1 EP96927471A EP96927471A EP0852670B1 EP 0852670 B1 EP0852670 B1 EP 0852670B1 EP 96927471 A EP96927471 A EP 96927471A EP 96927471 A EP96927471 A EP 96927471A EP 0852670 B1 EP0852670 B1 EP 0852670B1
Authority
EP
European Patent Office
Prior art keywords
valve
hole
base
stator member
exhaust gas
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
EP96927471A
Other languages
English (en)
French (fr)
Other versions
EP0852670A1 (de
Inventor
Bernard J. Hrytzak
Takeshi Gomi
Hirotomi Nemoto
Yoshio Yamamoto
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.)
Siemens Canada Ltd
Honda Motor Co Ltd
Original Assignee
Siemens Canada Ltd
Honda 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 Siemens Canada Ltd, Honda Motor Co Ltd filed Critical Siemens Canada Ltd
Publication of EP0852670A1 publication Critical patent/EP0852670A1/de
Application granted granted Critical
Publication of EP0852670B1 publication Critical patent/EP0852670B1/de
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
    • F02M26/72—Housings
    • F02M26/73—Housings with means for heating or cooling the EGR 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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators

Definitions

  • Fig. 13 is a top plan view of another of the parts of the EEGR valve shown by itself on an enlarged scale, namely a bearing member.
  • Fig. 20 is an enlarged view in circle 20 of Fig. 19.
  • Fig. 26 is a cross sectional view as taken in the direction of arrows 26-26 in Fig. 25.
  • Figs. 44, 45, and 46 are views of another form of clinch ring corresponding to the views of Figs. 25, 27, and 28 respectively.
  • the upper stator/solenoid coil assembly is accurately and securely located within shell 64 by virtue of the previously described press fitting of flange 198 to the side wall of shell 64 at shoulder 64b.
  • the upper and lower stator members are accurately axially positioned relative to one another by accurately controlling the axial distance between the two shoulders 64a and 64b in shell 64. Since both shoulders are in a single part, tighter tolerancing of that axial distance is made possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (3)

  1. Elektrisches Abgasrezirkulations(EEGR)ventil (60) für eine Brennkraftmaschine mit einer Umfassung (64) einschließlich einer Basis (62), einem Einlaß (90), an dem zu rezirkulierendes Abgas der Brennkraftmaschine in die Basis (62) eindringt, einem Kanal (88), der sich durch die Basis erstreckt und Abgas der Brennkraftmaschine, das über den Einlaß (90) eingedrungen ist, fördert, einem Auslaß (92), an dem Abgas der Brennkraftmaschine, das durch den Kanal (88) gedrungen ist, die Basis (62) verläßt, einem Ventilmechanismus (94, 112, 117), der innerhalb der Basis (62) angeordnet ist, um den Durchfluß durch den Kanal (88) zu steuern, einer elektrischen Betätigungseinheit (222), die innerhalb der Umfassung angeordnet ist und den Ventilmechanismus betreibt, wobei die Umfassung (64) eine Seitenwand mit Öffnungen (78) zu einem inneren Luftraum (76) aufweist, die bewirken, daß Umgebungsluft durch den Luftraum (76) strömt, einem Lagerelement (140), das sich axial innerhalb des Luftraumes (76) erstreckt und ein zentrales Durchgangsloch (156) zur Führung eines Schaftes umfaßt, der sich von der elektrischen Betätigungseinheit (222) zum Ventilmechanismus (94, 112, 117) erstreckt, und einer Statoreinheit (174, 194), die einen Magnetkreis für die Betätigungseinheit vorsieht und ein Statorelement (174) umfaßt, das als axiale Begrenzung des Luftraumes angeordnet ist und ein zentrales Durchgangsloch (186) aufweist, wobei das Lagerelement (146) konzentrisch zum Durchgangsloch des Statorelementes angeordnet ist, dadurch gekennzeichnet, daß sich das Lagerelement (146) in das Durchgangsloch des Statorelementes erstreckt, daß das Statorelement (174) eine zylindrische Wand (178) aufweist, die das Durchgangsloch (180) des Statorelementes enthält, und daß die zylindrische Wand (178) eine kegelstumpfförmige Fläche (182) aufweist, die sich in Richtung auf den Luftraum erstreckt, von dem aus sich das Lagerelement (140) in das Durchgangsloch des Statorelementes erstreckt, wobei die kegelstumpfförmige Fläche als Ablenkeinrichtung wirkt, um alles Wasser, das über die Öffnungen (78) eingedrungen ist, vom zentralen Durchgangsloch (186) wegzuführen.
  2. EEGR-Ventil nach Anspruch 1, bei dem die kegelstumpfförmige Fläche (182) in Axialrichtung etwa in der Mitte des Luftraumes angeordnet ist.
  3. EEGR-Ventil nach Anspruch 1 oder 2, bei dem der Ventilmechanismus einen Ventilsitz (94) in der Basis und einen Bolzen (114) am Schaft aufweist, der mit dem Ventilsitz (94) zusammenwirkt.
EP96927471A 1995-08-29 1996-08-21 Elektrisch betriebenes abgasrückführventil Expired - Lifetime EP0852670B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US52054195A 1995-08-29 1995-08-29
US520541 1995-08-29
PCT/CA1996/000560 WO1997008445A1 (en) 1995-08-29 1996-08-21 Electric actuated exhaust gas recirculation valve

Publications (2)

Publication Number Publication Date
EP0852670A1 EP0852670A1 (de) 1998-07-15
EP0852670B1 true EP0852670B1 (de) 2000-05-17

Family

ID=24073053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96927471A Expired - Lifetime EP0852670B1 (de) 1995-08-29 1996-08-21 Elektrisch betriebenes abgasrückführventil

Country Status (4)

Country Link
EP (1) EP0852670B1 (de)
JP (1) JP3168011B2 (de)
DE (1) DE69608460T2 (de)
WO (1) WO1997008445A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5950605A (en) * 1997-09-03 1999-09-14 Siemens Canada Ltd. Automotive emission control valve having opposing pressure forces acting on the valve member
US5924675A (en) * 1997-09-03 1999-07-20 Siemens Canada Limited Automotive emission control valve having two-part solenoid pole piece
US5901940A (en) * 1997-09-03 1999-05-11 Stemens Canada Limited Automotive emission control valve having opposing pressure forces within a port
US5947092A (en) * 1997-09-03 1999-09-07 Siemens Canada Limited Space-efficient electromagnetic actuated exhaust gas recirculation valve
US5901690A (en) * 1997-09-03 1999-05-11 Siemens Canada Limited Electromagnetic actuated exhaust gas recirculation valve
US7398774B1 (en) * 2007-01-17 2008-07-15 Continental Automotive Systems Us, Inc. Force balanced linear solenoid valves

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2137694A1 (de) * 1971-07-28 1973-02-08 Bosch Gmbh Robert Magnetventil zur abgasrueckfuehrung bei brennkraftmaschinen
US5494255A (en) * 1994-01-12 1996-02-27 Robertshaw Controls Company Solenoid activated exhaust gas recirculation valve
US5435519A (en) * 1994-03-31 1995-07-25 Stemens Electric Limited EGR system having fast-acting EGR valve
US5467962A (en) * 1994-09-09 1995-11-21 General Motors Corporation Actuator for an exhaust gas recirculation valve

Also Published As

Publication number Publication date
DE69608460D1 (de) 2000-06-21
DE69608460T2 (de) 2001-04-12
EP0852670A1 (de) 1998-07-15
JPH11513094A (ja) 1999-11-09
JP3168011B2 (ja) 2001-05-21
WO1997008445A1 (en) 1997-03-06

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