JPS62137313U - - Google Patents

Info

Publication number
JPS62137313U
JPS62137313U JP2497586U JP2497586U JPS62137313U JP S62137313 U JPS62137313 U JP S62137313U JP 2497586 U JP2497586 U JP 2497586U JP 2497586 U JP2497586 U JP 2497586U JP S62137313 U JPS62137313 U JP S62137313U
Authority
JP
Japan
Prior art keywords
arm
cam
valve
circumferential surface
tappet
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
JP2497586U
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 JP2497586U priority Critical patent/JPS62137313U/ja
Publication of JPS62137313U publication Critical patent/JPS62137313U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Description

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

第1〜5図は本考案の一実施例としてのエンジ
ンのタイミング可変式給排気用バルブ機構を示す
もので、第1図はその要部を模式的に示す正面図
、第2図はその作動を示すグラフ、第3図はその
要部の作動状態を示す模式的正面図、第4,5図
はいずれもその作動を示すグラフであり、第6図
は従来のオーバーヘツドバルブ式給排気用バルブ
機構を示す模式図である。 1……給排気用バルブ機構、2……プツシユロ
ツド、3……タペツト、4……バルブ駆動用カム
、5……第1のアーム、6……第1の駆動機構、
7……第2のアーム、8……第2の駆動機構、9
……第1の偏心シヤフト、10……第1の回転駆
動手段、11……第2の偏心シヤフト、12……
第2の回転駆動手段、13,13′……回転中心
、14,15……揺動中心、16……係合点、1
7,18……ローラ、27……ロツカアーム、2
8……バルブステム。
Figures 1 to 5 show a variable timing intake/exhaust valve mechanism for an engine as an embodiment of the present invention. Figure 1 is a front view schematically showing its main parts, and Figure 2 shows its operation. Figure 3 is a schematic front view showing the operating state of its main parts, Figures 4 and 5 are graphs showing its operation, and Figure 6 is a conventional overhead valve type air supply/exhaust system. It is a schematic diagram showing a valve mechanism. DESCRIPTION OF SYMBOLS 1... Valve mechanism for supply and exhaust, 2... Push rod, 3... Tappet, 4... Valve drive cam, 5... First arm, 6... First drive mechanism,
7...Second arm, 8...Second drive mechanism, 9
...First eccentric shaft, 10...First rotational drive means, 11...Second eccentric shaft, 12...
Second rotational drive means, 13, 13'... Rotation center, 14, 15... Swing center, 16... Engagement point, 1
7, 18...Roller, 27...Lotsuka arm, 2
8...Valve stem.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジンにおいてオーバーヘツドバルブ式の給
排気用バルブ機構をそなえ、同給排気用バルブ機
構が、ブツシユロツドと、同プツシユロツドの下
端に装着されたタペツトと、同タペツトの下方に
配設されたバルブ駆動用カムとをそなえて構成さ
れ、上記バルブ機構の開弁タイミングまたは閉弁
タイミングを変更すべく、先端部を上記タペツト
下面と上記カムの周面との間に介装された第1の
アームと、同第1のアームと上記カムの周面との
係合点を進角方向へ所要量偏倚させるように上記
第1のアームを駆動させうる第1の駆動機構と、
上記カムの厚み方向において上記アームに並設さ
れるとともに上記タペツト下面と上記カムの周面
との間に介装された先端部を有する第2のアーム
と、同第2のアームと上記カムの周面との接合点
を遅角方向へ所要量偏倚させるように上記第2の
アームを駆動させうる第2の駆動機構とが設けら
れたことを特徴とする、エンジンのタイミング可
変式給排気用バルブ機構。
The engine is equipped with an overhead valve type supply/exhaust valve mechanism, which consists of a bush rod, a tappet attached to the lower end of the push rod, and a valve drive cam disposed below the tappet. a first arm having a distal end interposed between the lower surface of the tappet and the circumferential surface of the cam in order to change the valve opening timing or valve closing timing of the valve mechanism; a first drive mechanism capable of driving the first arm so as to bias the engagement point between the first arm and the circumferential surface of the cam by a required amount in the advance direction;
a second arm that is arranged parallel to the arm in the thickness direction of the cam and has a tip interposed between the lower surface of the tapepet and the circumferential surface of the cam; and a second drive mechanism capable of driving the second arm so as to deviate the junction point with the circumferential surface by a required amount in the retard direction. Valve mechanism.
JP2497586U 1986-02-22 1986-02-22 Pending JPS62137313U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2497586U JPS62137313U (en) 1986-02-22 1986-02-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2497586U JPS62137313U (en) 1986-02-22 1986-02-22

Publications (1)

Publication Number Publication Date
JPS62137313U true JPS62137313U (en) 1987-08-29

Family

ID=30824695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2497586U Pending JPS62137313U (en) 1986-02-22 1986-02-22

Country Status (1)

Country Link
JP (1) JPS62137313U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102859131A (en) * 2010-04-19 2013-01-02 斯堪尼亚商用车有限公司 Valve lift device for a combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102859131A (en) * 2010-04-19 2013-01-02 斯堪尼亚商用车有限公司 Valve lift device for a combustion engine
JP2013525673A (en) * 2010-04-19 2013-06-20 スカニア シーブイ アクチボラグ Valve lift device for combustion engine

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