JPH0239507U - - Google Patents

Info

Publication number
JPH0239507U
JPH0239507U JP1988117635U JP11763588U JPH0239507U JP H0239507 U JPH0239507 U JP H0239507U JP 1988117635 U JP1988117635 U JP 1988117635U JP 11763588 U JP11763588 U JP 11763588U JP H0239507 U JPH0239507 U JP H0239507U
Authority
JP
Japan
Prior art keywords
rocker arm
cam
engine
rocker
engine body
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.)
Pending
Application number
JP1988117635U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1988117635U priority Critical patent/JPH0239507U/ja
Publication of JPH0239507U publication Critical patent/JPH0239507U/ja
Pending legal-status Critical Current

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
    • 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
    • F01L13/0063—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 cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • 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
    • F01L13/0063—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 cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • F01L2013/0068—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 cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot with an oscillating cam acting on the valve of the "BMW-Valvetronic" type

Landscapes

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

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案の一実施例の縦断側面図である。 １……機関本体、５……機関弁としての吸気弁
、９……動弁装置、１１……駆動カム、１２……
ロツカアーム、１３……支持手段、１５……揺動
カム、３４……当接部材、３６……ばね。 The drawing is a longitudinal sectional side view of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Engine main body, 5... Intake valve as an engine valve, 9... Valve train, 11... Drive cam, 12...
rocker arm, 13...support means, 15...swing cam, 34...abutting member, 36...spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 支持手段で揺動自在に支承されたロツカアーム
を揺動駆動すべく、機関の回転に応動する駆動カ
ムが該ロツカアームに摺接され、閉弁方向にばね
付勢されながら機関本体に開閉作動可能に支承さ
れた機関弁の頭部には、前記ロツカアームに摺接
された揺動カムが連動、連結され、機関本体およ
び揺動カム間には揺動カムをロツカアームに摺接
させる方向の付勢力を発揮するばねが介設される
内燃機関の動弁装置において、駆動カムはロツカ
アームの長手方向中間部に摺接され、ロツカアー
ムを支持する支点位置を変位可能にして機関本体
に設けられる支持手段と、揺動カムとは、ロツカ
アームに関して前記駆動カムとは反対側でロツカ
アームの両端に対応する位置に配設され、機関本
体には揺動カムに当接可能な当接部材が摺動可能
に嵌合され、該当接部材および機関本体間にばね
が縮設されることを特徴とする内燃機関の動弁装
置。 In order to swing the rocker arm that is swingably supported by the support means, a drive cam that responds to the rotation of the engine is brought into sliding contact with the rocker arm, and is able to open and close the engine body while being biased by a spring in the valve closing direction. A swinging cam that slides on the rocker arm is interlocked and connected to the head of the supported engine valve, and a biasing force is applied between the engine body and the rocker cam in the direction of sliding the rocker cam into sliding contact with the rocker arm. In a valve operating system for an internal combustion engine in which a spring is interposed, the driving cam is slidably contacted with a longitudinally intermediate portion of the rocker arm, and a supporting means provided on the engine body is configured to enable a fulcrum position for supporting the rocker arm to be displaced; The swing cam is arranged at a position corresponding to both ends of the rocker arm on the opposite side of the rocker arm from the drive cam, and a contact member that can come into contact with the rocker cam is slidably fitted into the engine body. A valve train for an internal combustion engine, characterized in that a spring is compressed between the corresponding contact member and the engine body.
JP1988117635U 1988-09-07 1988-09-07 Pending JPH0239507U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988117635U JPH0239507U (en) 1988-09-07 1988-09-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988117635U JPH0239507U (en) 1988-09-07 1988-09-07

Publications (1)

Publication Number Publication Date
JPH0239507U true JPH0239507U (en) 1990-03-16

Family

ID=31361262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988117635U Pending JPH0239507U (en) 1988-09-07 1988-09-07

Country Status (1)

Country Link
JP (1) JPH0239507U (en)

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