JPS6021507U - Variable valve timing mechanism - Google Patents
Variable valve timing mechanismInfo
- Publication number
- JPS6021507U JPS6021507U JP11307283U JP11307283U JPS6021507U JP S6021507 U JPS6021507 U JP S6021507U JP 11307283 U JP11307283 U JP 11307283U JP 11307283 U JP11307283 U JP 11307283U JP S6021507 U JPS6021507 U JP S6021507U
- Authority
- JP
- Japan
- Prior art keywords
- timing mechanism
- variable valve
- valve timing
- cam
- piston
- 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
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は内燃機関の動弁系の全体を示す断面図、第２図
は本考案に係る可変バルブタイミング機構を示す図、第
３図はピストンが移動した状態を示す図、第４図は第２
図の矢印■の方向から見た図である。
１９．１９’・・・カムピース、１９ａ・・・低速用カ
ム、１９ｂ・・・高速用カム、３１・・・カム軸、４１
・・・エアシリンダ、４３・・・ピストン、４７・・・
フォーク、４９・・・長穴状窓部、５５・・・圧縮コイ
ルばね、５７・・・空気圧切換弁。
第１図
第２図Figure 1 is a sectional view showing the entire valve train of an internal combustion engine, Figure 2 is a diagram showing the variable valve timing mechanism according to the present invention, Figure 3 is a diagram showing the state in which the piston has moved, and Figure 4 is a diagram showing the variable valve timing mechanism according to the present invention. Second
It is a view seen from the direction of arrow ■ in the figure. 19.19'...Cam piece, 19a...Low speed cam, 19b...High speed cam, 31...Cam shaft, 41
...Air cylinder, 43...Piston, 47...
Fork, 49...Elongated hole window, 55...Compression coil spring, 57...Pneumatic switching valve. Figure 1 Figure 2
Claims (1)
なくとも２個の駆動カム１９ａ、１９ｂを有するカムピ
ース１９を軸方向に移動可能にカム軸３１に装着し、前
記カムピース１９を軸方向に移動させることで前記少な
（とも２個の駆動カムを択一的に切り換えて開閉弁を動
作させるようにした内燃機関の可変バルブタイミング機
構において、前記カム軸と平行にエアシリンダ４１を配
置し、前記カムピース１９を移動させるフォーク４７を
前記エアシリンダ４１のピストン４３に結合し、該ピス
トン４３は圧縮空気により一方向に駆動されると共に、
前記圧縮空気が解除された際はばねの力で他方向に復帰
するように構成したことを特徴とする可変バルブタイミ
ング機構。A cam piece 19 having at least two drive cams 19a, 19b with different cam profiles for one opening/closing valve 9 is attached to the cam shaft 31 so as to be movable in the axial direction, and the cam piece 19 is moved in the axial direction. In a variable valve timing mechanism for an internal combustion engine in which an on-off valve is operated by selectively switching two drive cams, an air cylinder 41 is disposed parallel to the cam shaft and the cam piece 19 is moved. A fork 47 is connected to the piston 43 of the air cylinder 41, and the piston 43 is driven in one direction by compressed air.
A variable valve timing mechanism characterized in that the variable valve timing mechanism is configured to return in the other direction by the force of a spring when the compressed air is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11307283U JPS6021507U (en) | 1983-07-22 | 1983-07-22 | Variable valve timing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11307283U JPS6021507U (en) | 1983-07-22 | 1983-07-22 | Variable valve timing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6021507U true JPS6021507U (en) | 1985-02-14 |
Family
ID=30261884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11307283U Pending JPS6021507U (en) | 1983-07-22 | 1983-07-22 | Variable valve timing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021507U (en) |
-
1983
- 1983-07-22 JP JP11307283U patent/JPS6021507U/en active Pending
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