JPH0263005U - - Google Patents

Info

Publication number
JPH0263005U
JPH0263005U JP14266588U JP14266588U JPH0263005U JP H0263005 U JPH0263005 U JP H0263005U JP 14266588 U JP14266588 U JP 14266588U JP 14266588 U JP14266588 U JP 14266588U JP H0263005 U JPH0263005 U JP H0263005U
Authority
JP
Japan
Prior art keywords
cam
valves
valve mechanism
stroke engine
actuator
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.)
Granted
Application number
JP14266588U
Other languages
Japanese (ja)
Other versions
JPH0648083Y2 (en
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 JP14266588U priority Critical patent/JPH0648083Y2/en
Publication of JPH0263005U publication Critical patent/JPH0263005U/ja
Application granted granted Critical
Publication of JPH0648083Y2 publication Critical patent/JPH0648083Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • 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]

第１図は、本考案に係る動弁機構の一実施例を
示した縦断面図、第２図および第３図はそれぞれ
低エンジン回転速度時および高エンジン回転速度
時におけるピンの位置関係を示した説明図、第４
図および第５図はそれぞれカムの位置変化の態様
を示した断面図、第６図はバルブのリフト特性を
例示したグラフ、第７図は油圧制御系の一例を示
したブロツク図である。 １，２……吸気バルブ、３……カムシヤフト、
３ａ……摺動孔、３ｂ，３ｃ……ガイド孔、４ａ
，５ａ……凹溝、４，５……カム、８，９……摺
動子、１０……ピストン、１１，１２……ピン。 FIG. 1 is a longitudinal sectional view showing an embodiment of the valve train according to the present invention, and FIGS. 2 and 3 show the positional relationship of the pins at low engine speed and high engine speed, respectively. Explanatory diagram, 4th
5 and 5 are cross-sectional views showing the manner in which the position of the cam changes, FIG. 6 is a graph showing an example of the lift characteristics of the valve, and FIG. 7 is a block diagram showing an example of a hydraulic control system. 1, 2...Intake valve, 3...Camshaft,
3a...Sliding hole, 3b, 3c...Guide hole, 4a
, 5a... Concave groove, 4, 5... Cam, 8, 9... Slider, 10... Piston, 11, 12... Pin.

Claims (1)

【実用新案登録請求の範囲】 １つの気筒に同一の作用を行なう複数のバルブ
を設けた４サイクルエンジンに適用される動弁機
構であつて、 カムシヤフトに回動可能に嵌合され、上記各バ
ルブのうちの少なくとも１つおよび残るバルブの
少なくとも１つをそれぞれ作動させる第１および
第２のカムと、 カム回動用アクチユエータを有し、該アクチユ
エータの作動に連係して、上記第１および第２の
カムを基準位置から所定角度だけ互いに異なる方
向に回動させるカム回動手段と を備えることを特徴とする４サイクルエンジン
の動弁機構。[Claims for Utility Model Registration] A valve mechanism applied to a four-stroke engine in which one cylinder is provided with a plurality of valves that perform the same function, which are rotatably fitted to a camshaft and each of the above-mentioned valves and at least one of the remaining valves, and a cam rotation actuator, and in conjunction with the operation of the actuator, the first and second cams are actuated. A valve mechanism for a four-stroke engine, comprising: cam rotating means for rotating the cam in different directions from a reference position by a predetermined angle.
JP14266588U 1988-10-31 1988-10-31 4-cycle engine valve mechanism Expired - Lifetime JPH0648083Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14266588U JPH0648083Y2 (en) 1988-10-31 1988-10-31 4-cycle engine valve mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14266588U JPH0648083Y2 (en) 1988-10-31 1988-10-31 4-cycle engine valve mechanism

Publications (2)

Publication Number Publication Date
JPH0263005U true JPH0263005U (en) 1990-05-11
JPH0648083Y2 JPH0648083Y2 (en) 1994-12-07

Family

ID=31408809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14266588U Expired - Lifetime JPH0648083Y2 (en) 1988-10-31 1988-10-31 4-cycle engine valve mechanism

Country Status (1)

Country Link
JP (1) JPH0648083Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010138862A (en) * 2008-12-12 2010-06-24 Mitsubishi Motors Corp Variable valve gear
JP2012202355A (en) * 2011-03-28 2012-10-22 Mitsubishi Motors Corp Cam structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012032634A1 (en) * 2010-09-09 2012-03-15 トヨタ自動車株式会社 Camshaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010138862A (en) * 2008-12-12 2010-06-24 Mitsubishi Motors Corp Variable valve gear
JP2012202355A (en) * 2011-03-28 2012-10-22 Mitsubishi Motors Corp Cam structure

Also Published As

Publication number Publication date
JPH0648083Y2 (en) 1994-12-07

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