EP0628703A1 - Variable Ventilsteuereinrichtung für eine Brennkraftmaschine - Google Patents

Variable Ventilsteuereinrichtung für eine Brennkraftmaschine Download PDF

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Publication number
EP0628703A1
EP0628703A1 EP94401225A EP94401225A EP0628703A1 EP 0628703 A1 EP0628703 A1 EP 0628703A1 EP 94401225 A EP94401225 A EP 94401225A EP 94401225 A EP94401225 A EP 94401225A EP 0628703 A1 EP0628703 A1 EP 0628703A1
Authority
EP
European Patent Office
Prior art keywords
ring
lever
internal combustion
combustion engine
rotation shaft
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.)
Withdrawn
Application number
EP94401225A
Other languages
English (en)
French (fr)
Inventor
Paul Cuvillier
Benoît Damien
Jean-Christophe Lucas
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of EP0628703A1 publication Critical patent/EP0628703A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction

Definitions

  • the second lever comprises a central bore extending opposite the central bore arranged in the first lever, the bore of the second lever comprising axially extending grooves capable of cooperating with the teeth projecting from the periphery of the ring so as to make the ring and the second lever rotate in rotation.
  • the second lever 2 also comprising two arms extending perpendicular to the shaft 29 (a single arm is however shown in the figures), cooperates at its end 8 with a second control cam and by its other end with elastic return means for forcing the end 8 into contact with the second cam.
  • the displacement of the shaft 294 does not immediately cause the displacement of the sleeve 40 and the ring 34, the lugs of the latter no longer being in coincidence with the corresponding recesses of the lever 2.
  • the displacement of the rotation shaft 294 has the effect of compressing the spring 42 since the corresponding edge of the housing 41 has moved closer to the bush 40.
  • variable distribution device such as the setting of the springs 42 and 43, or even the value of engine rotation triggering the change of cams, are adapted to each type of engine by preliminary tests conducted on engine test benches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
EP94401225A 1993-06-08 1994-06-03 Variable Ventilsteuereinrichtung für eine Brennkraftmaschine Withdrawn EP0628703A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9306812 1993-06-08
FR9306812A FR2706180B1 (fr) 1993-06-08 1993-06-08 Dispositif de distribution variable pour moteur à combustion interne.

Publications (1)

Publication Number Publication Date
EP0628703A1 true EP0628703A1 (de) 1994-12-14

Family

ID=9447845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401225A Withdrawn EP0628703A1 (de) 1993-06-08 1994-06-03 Variable Ventilsteuereinrichtung für eine Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP0628703A1 (de)
FR (1) FR2706180B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136875A1 (en) * 2009-05-28 2010-12-02 Toyota Jidosha Kabushiki Kaisha Variable valve actuation apparatus for internal combustion engine
US8955476B2 (en) 2009-11-25 2015-02-17 Toyota Jidosha Kabushiki Kaisha Variable valve operating apparatus for internal combustion engine
CN114729579A (zh) * 2019-11-27 2022-07-08 比亚乔公司 用于带提升气门的多缸内燃发动机的带定相装置的凸轮轴

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253434A (en) * 1978-04-21 1981-03-03 Toyota Jidosha Kogyo Kabushiki Kaisha Variable valve event engine
JPS60166717A (ja) * 1984-02-10 1985-08-30 Nissan Motor Co Ltd 排気過給機付内燃機関
JPS61185606A (ja) * 1985-02-12 1986-08-19 Suzuki Motor Co Ltd ４サイクルエンジンのバルブタイミング可変装置
JPS61185605A (ja) * 1985-02-12 1986-08-19 Suzuki Motor Co Ltd ４サイクルエンジンのバルブ開閉タイミング可変装置
JPS61185604A (ja) * 1985-02-12 1986-08-19 Suzuki Motor Co Ltd ４サイクルエンジンのバルブ開閉タイミング可変装置
JPH0392521A (ja) * 1989-09-05 1991-04-17 Nissan Motor Co Ltd エンジンの弁作動装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253434A (en) * 1978-04-21 1981-03-03 Toyota Jidosha Kogyo Kabushiki Kaisha Variable valve event engine
JPS60166717A (ja) * 1984-02-10 1985-08-30 Nissan Motor Co Ltd 排気過給機付内燃機関
JPS61185606A (ja) * 1985-02-12 1986-08-19 Suzuki Motor Co Ltd ４サイクルエンジンのバルブタイミング可変装置
JPS61185605A (ja) * 1985-02-12 1986-08-19 Suzuki Motor Co Ltd ４サイクルエンジンのバルブ開閉タイミング可変装置
JPS61185604A (ja) * 1985-02-12 1986-08-19 Suzuki Motor Co Ltd ４サイクルエンジンのバルブ開閉タイミング可変装置
JPH0392521A (ja) * 1989-09-05 1991-04-17 Nissan Motor Co Ltd エンジンの弁作動装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 2 (M - 444) 8 January 1986 (1986-01-08) *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 10 (M - 552) 10 January 1987 (1987-01-10) *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 272 (M - 1134) 10 July 1991 (1991-07-10) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136875A1 (en) * 2009-05-28 2010-12-02 Toyota Jidosha Kabushiki Kaisha Variable valve actuation apparatus for internal combustion engine
CN102449275A (zh) * 2009-05-28 2012-05-09 丰田自动车株式会社 用于内燃机的可变阀致动设备
US8955476B2 (en) 2009-11-25 2015-02-17 Toyota Jidosha Kabushiki Kaisha Variable valve operating apparatus for internal combustion engine
CN114729579A (zh) * 2019-11-27 2022-07-08 比亚乔公司 用于带提升气门的多缸内燃发动机的带定相装置的凸轮轴
CN114729579B (zh) * 2019-11-27 2024-03-12 比亚乔公司 用于带提升气门的多缸内燃发动机的带定相装置的凸轮轴

Also Published As

Publication number Publication date
FR2706180B1 (fr) 1995-07-13
FR2706180A1 (fr) 1994-12-16

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