WO2014142731A3 - Suiveur de came pour ensemble poussoir de soupape d'un moteur à combustion interne - Google Patents

Suiveur de came pour ensemble poussoir de soupape d'un moteur à combustion interne Download PDF

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Publication number
WO2014142731A3
WO2014142731A3 PCT/SE2014/050212 SE2014050212W WO2014142731A3 WO 2014142731 A3 WO2014142731 A3 WO 2014142731A3 SE 2014050212 W SE2014050212 W SE 2014050212W WO 2014142731 A3 WO2014142731 A3 WO 2014142731A3
Authority
WO
WIPO (PCT)
Prior art keywords
locked position
contact
cam follower
contact surfaces
combustion engine
Prior art date
Application number
PCT/SE2014/050212
Other languages
English (en)
Other versions
WO2014142731A2 (fr
Inventor
Niclas Gunnarsson
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to DE112014000940.7T priority Critical patent/DE112014000940B4/de
Publication of WO2014142731A2 publication Critical patent/WO2014142731A2/fr
Publication of WO2014142731A3 publication Critical patent/WO2014142731A3/fr

Links

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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
    • 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
    • F01L13/0021—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 by modification of rocker arm ratio
    • 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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

La présente invention concerne un suiveur de came pour ensemble poussoir de soupape d'un moteur à combustion interne. Le suiveur de came (4) comprend un dispositif principal (8), un dispositif secondaire (10) et un organe de verrouillage (13) qui est attaché à l'un (10) desdits dispositifs et qui comporte une surface de contact (13c1) conçue pour être amenée en contact avec une surface de contact (8a1)) de l'autre (8) des dispositifs. L'organe de verrouillage (13) peut être utilisé dans une position de non verrouillage, dans laquelle les mouvements de commande du dispositif secondaire (10) ne sont pas transmissibles au dispositif principal (8) par l'intermédiaire desdites surfaces de contact (8a1, 13c1), ainsi que dans une position de verrouillage partiel et dans une position de verrouillage complet, dans lesquelles les mouvements de commande du dispositif secondaire (10) sont transmissibles au dispositif principal (8) par l'intermédiaire desdites surfaces de contact (8a1, 13c1). Les surfaces de contact (8a1,13c1) sont à complémentarité de formes. Elles sont en contact mutuel partiel dans la position de verrouillage partiel et sont en contact mutuel complet dans la position de verrouillage complet. Elles présentent une inclinaison l'une par rapport à l'autre dans la position de verrouillage partiel de manière que, lorsqu'un mouvement de commande du dispositif secondaire (10) est appliqué auxdites surfaces de contact (8a1, 13c1) en position de verrouillage partiel, la surface de contact (13c1) de l'organe de verrouillage sera ajustée par rapport à l'autre surface de contact (8a1) jusqu'à ce que les surfaces de contact (8a1, 13c1) soient en contact mutuel complet et que l'organe de verrouillage (13) se trouve en position de verrouillage complet.
PCT/SE2014/050212 2013-03-11 2014-02-21 Suiveur de came pour ensemble poussoir de soupape d'un moteur à combustion interne WO2014142731A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112014000940.7T DE112014000940B4 (de) 2013-03-11 2014-02-21 Nockenfolger für eine Ventilstößelanordnung in einem Verbrennungsmotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1350285-1 2013-03-11
SE1350285A SE537693C2 (sv) 2013-03-11 2013-03-11 Kamföljare för en ventillyftanordning i en förbränningsmotor

Publications (2)

Publication Number Publication Date
WO2014142731A2 WO2014142731A2 (fr) 2014-09-18
WO2014142731A3 true WO2014142731A3 (fr) 2014-12-04

Family

ID=50514026

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2014/050212 WO2014142731A2 (fr) 2013-03-11 2014-02-21 Suiveur de came pour ensemble poussoir de soupape d'un moteur à combustion interne

Country Status (3)

Country Link
DE (1) DE112014000940B4 (fr)
SE (1) SE537693C2 (fr)
WO (1) WO2014142731A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201517728D0 (en) 2015-10-07 2015-11-18 Eaton Srl Apparatus for actuation
GB2546078A (en) * 2016-01-06 2017-07-12 Eaton Srl Rocker arm and method for manufacture
KR102402117B1 (ko) * 2018-03-26 2022-05-25 자콥스 비히클 시스템즈, 인코포레이티드. 2차 흡기 밸브 모션 및 로스트 모션 리셋을 이용한 iegr을 위한 시스템 및 방법

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030051690A1 (en) * 2001-09-19 2003-03-20 Hermann Wenisch Switching element for a valve train of an internal combustion engine
WO2004094791A1 (fr) * 2003-04-23 2004-11-04 Ina-Schaeffler Kg Basculeur d'un mecanisme de distribution d'un moteur a combustion interne
DE102005037053A1 (de) * 2005-08-05 2007-02-08 Schaeffler Kg Schaltbarer Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
US20070039573A1 (en) * 2005-08-04 2007-02-22 Timken Us Corporation Deactivating roller finger follower
WO2007035673A2 (fr) * 2005-09-16 2007-03-29 Timken Us Corporation Ensemble a doigt de poussee de commutation
US20080127917A1 (en) * 2006-12-01 2008-06-05 William Riley Mode-Switching Cam Follower
US20090000584A1 (en) * 2007-06-26 2009-01-01 Bodo Rorig Switchable finger lever of a valve train of an internal combustion engine
US20100300389A1 (en) * 2009-06-01 2010-12-02 Schaeffler Technologies Gmbh & Co. Kg Switchable finger lever

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030051690A1 (en) * 2001-09-19 2003-03-20 Hermann Wenisch Switching element for a valve train of an internal combustion engine
WO2004094791A1 (fr) * 2003-04-23 2004-11-04 Ina-Schaeffler Kg Basculeur d'un mecanisme de distribution d'un moteur a combustion interne
US20070039573A1 (en) * 2005-08-04 2007-02-22 Timken Us Corporation Deactivating roller finger follower
DE102005037053A1 (de) * 2005-08-05 2007-02-08 Schaeffler Kg Schaltbarer Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
WO2007035673A2 (fr) * 2005-09-16 2007-03-29 Timken Us Corporation Ensemble a doigt de poussee de commutation
US20080127917A1 (en) * 2006-12-01 2008-06-05 William Riley Mode-Switching Cam Follower
US20090000584A1 (en) * 2007-06-26 2009-01-01 Bodo Rorig Switchable finger lever of a valve train of an internal combustion engine
US20100300389A1 (en) * 2009-06-01 2010-12-02 Schaeffler Technologies Gmbh & Co. Kg Switchable finger lever

Also Published As

Publication number Publication date
SE537693C2 (sv) 2015-09-29
DE112014000940B4 (de) 2017-06-01
DE112014000940T5 (de) 2015-11-26
SE1350285A1 (sv) 2014-09-12
WO2014142731A2 (fr) 2014-09-18

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