JPH0313410U - - Google Patents
Info
- Publication number
- JPH0313410U JPH0313410U JP7302389U JP7302389U JPH0313410U JP H0313410 U JPH0313410 U JP H0313410U JP 7302389 U JP7302389 U JP 7302389U JP 7302389 U JP7302389 U JP 7302389U JP H0313410 U JPH0313410 U JP H0313410U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- driving force
- receiving part
- force receiving
- cam
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 1
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図は本考案による可変タイミングバルブ構
造の１実施例を示す断面図、第２図は第１図のバ
ルブのエンジン回転数によるバルブリフトとバル
ブ閉時の変化を示すグラフ。第３図は従来のバル
ブ構造を示す断面図、第４図は吸気バルブ閉時期
と吸入空気量との関係のエンジン回転数による変
化を示すグラフである。
１……バルブ、２……ピストン、３……シリン
ダ、４……オイル室、５……付勢スプリング、１
１……バルブポート、１２……バルブヘツド、１
３……バルブステム、１５……バルブキヤツプ、
１７……バルブスプリング、１９……カムシヤフ
ト、２０……カムノーズ。
FIG. 1 is a sectional view showing one embodiment of the variable timing valve structure according to the present invention, and FIG. 2 is a graph showing changes in valve lift and valve closing depending on the engine speed of the valve in FIG. 1. FIG. 3 is a sectional view showing a conventional valve structure, and FIG. 4 is a graph showing changes in the relationship between intake valve closing timing and intake air amount depending on engine speed. 1... Valve, 2... Piston, 3... Cylinder, 4... Oil chamber, 5... Biasing spring, 1
1... Valve port, 12... Valve head, 1
3... Valve stem, 15... Valve cap,
17...Valve spring, 19...Camshaft, 20...Cam nose.
Claims (1)
バルブポートの開閉動作を行なう内燃機関の吸、
排気バルブにおいて、 前記バルブは、前記カム及びバルブスプリング
の駆動力を受ける駆動力受承部と 前記バルブポートの開閉を行う、前記駆動力受
承部とは別体に形成されたバルブヘツド部と、 前記駆動力受承部と前記バルブヘツド部とを相
互に弾性的に相対動作可能に連結し、かつ駆動力
伝達をおこなう弾性伝動手段と、前記バルブヘツ
ド部を前記駆動力受承部に向けて付勢する付勢ス
プリングとを具備して成り、 以つて前記カム及びバルブスプリングの動作に
対して、前記内燃機関の回転数に応じた位相遅れ
を前記バルブヘツド部に生じさせたことを特徴と
する内燃機関の可変タイミング構造。[Scope of Claim for Utility Model Registration] An intake system for an internal combustion engine that opens and closes combustion chamber valve ports driven by a cam and a valve spring.
In the exhaust valve, the valve includes: a driving force receiving part that receives the driving force of the cam and the valve spring; a valve head part that opens and closes the valve port and is formed separately from the driving force receiving part; an elastic transmission means for elastically connecting the driving force receiving part and the valve head part so as to be movable relative to each other and transmitting the driving force; and urging the valve head part toward the driving force receiving part. an internal combustion engine, characterized in that the valve head section is provided with a biasing spring that causes a phase delay in response to the rotational speed of the internal combustion engine with respect to the operation of the cam and the valve spring. variable timing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7302389U JPH0313410U (en) | 1989-06-23 | 1989-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7302389U JPH0313410U (en) | 1989-06-23 | 1989-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0313410U true JPH0313410U (en) | 1991-02-12 |
Family
ID=31611484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7302389U Pending JPH0313410U (en) | 1989-06-23 | 1989-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0313410U (en) |
-
1989
- 1989-06-23 JP JP7302389U patent/JPH0313410U/ja active Pending
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