JPH031206U - - Google Patents
Info
- Publication number
- JPH031206U JPH031206U JP5254690U JP5254690U JPH031206U JP H031206 U JPH031206 U JP H031206U JP 5254690 U JP5254690 U JP 5254690U JP 5254690 U JP5254690 U JP 5254690U JP H031206 U JPH031206 U JP H031206U
- Authority
- JP
- Japan
- Prior art keywords
- decompression
- cam
- cam surface
- face
- intake
- 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
Links
- 230000006837 decompression Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Valve Device For Special Equipments (AREA)
Description
図面は本考案の一実施例を示し、第１図はカム
ギヤ端面部分の図、第２図は第１図の−断面
図、第３図は第１図の−断面図、第４図はデ
コンプピンの斜視図、第５図はクランク角度に対
するカムリフトを示す説明図、第６図および第７
図は第２図の−断面図で第６図はエンジン始
動時の動作説明図、第７図はエンジンの通常回転
時の動作説明図、第８図は第１図の一部断面平面
図である。
１……カムシヤフト、２……吸気タペツト、３
……排気タペツト、４……吸気カム、５……排気
カム、６……カムギヤ、１０……圧縮行程側デコ
ンプピン、１１……爆発行程側デコンプピン、１
２……係合部、１３……デコンプカム、１５……
ウエイトレバー。
The drawings show an embodiment of the present invention, in which Fig. 1 is a view of the end face of a cam gear, Fig. 2 is a cross-sectional view of Fig. 1, Fig. 3 is a cross-sectional view of Fig. 1, and Fig. 4 is a decompression pin. Fig. 5 is an explanatory diagram showing cam lift with respect to crank angle, Fig. 6 and Fig. 7 are perspective views.
The figure is a cross-sectional view of Figure 2, Figure 6 is an explanatory diagram of the operation when starting the engine, Figure 7 is an explanatory diagram of the operation during normal engine rotation, and Figure 8 is a partially sectional plan view of Figure 1. be. 1...Camshaft, 2...Intake tappet, 3
...Exhaust tappet, 4...Intake cam, 5...Exhaust cam, 6...Cam gear, 10...Compression stroke side decompression pin, 11...Explosion stroke side decompression pin, 1
2... Engaging portion, 13... Decompression cam, 15...
weight lever.
Claims (1)
上死点位置から圧縮行程側へ偏倚した位置と上記
圧縮上死点位置から爆発行程側へ偏倚した位置と
に、圧縮行程側デコンプピンと爆発行程側デコン
プピンを各々枢支し、 上記両デコンプピンの一端部に、吸気タペツト
の端面と排気タペツトの端面の一方に対峙すると
ともに上記デコンプピンに連動して吸気カム面と
排気カム面の一方から突出自在なデコンプカムを
設け、 また上記カムギヤの端面に遠心力で拡開自在な
ウエイトレバーを枢着し、 このウエイトレバーと上記両デコンプピンとを
係合部を介して連設し、このウエイトレバーが拡
開時に上記デコンプカムを上記吸気カム面と排気
カム面の一方へ没入させる ことを特徴とするエンジンの自動デコンプ装置
。[Scope of Claim for Utility Model Registration] On the end face of the cam gear provided in the camshaft, there is a compression stroke at a position deviated from the compression top dead center position toward the compression stroke side and a position deviated from the compression top dead center position toward the explosion stroke side. A side decompression pin and an explosion stroke side decompression pin are each pivotally supported, and a side decompression pin is provided at one end of both of the decompression pins, facing one of the end faces of the intake tappet and the end face of the exhaust tappet, and interlocking with the decompression pin, the intake cam surface and the exhaust cam surface are connected to each other. A decompression cam that can freely protrude from one side is provided, and a weight lever that can be expanded by centrifugal force is pivotally attached to the end face of the cam gear. An automatic engine decompression device characterized in that when a lever is expanded, the decompression cam is recessed into one of the intake cam surface and the exhaust cam surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990052546U JPH0717770Y2 (en) | 1990-05-17 | 1990-05-17 | Automatic engine decompression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990052546U JPH0717770Y2 (en) | 1990-05-17 | 1990-05-17 | Automatic engine decompression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH031206U true JPH031206U (en) | 1991-01-09 |
| JPH0717770Y2 JPH0717770Y2 (en) | 1995-04-26 |
Family
ID=31572936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990052546U Expired - Lifetime JPH0717770Y2 (en) | 1990-05-17 | 1990-05-17 | Automatic engine decompression device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717770Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5943603U (en) * | 1982-09-16 | 1984-03-22 | 本田技研工業株式会社 | Automatic starting load reduction device for internal combustion engines |
-
1990
- 1990-05-17 JP JP1990052546U patent/JPH0717770Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5943603U (en) * | 1982-09-16 | 1984-03-22 | 本田技研工業株式会社 | Automatic starting load reduction device for internal combustion engines |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0717770Y2 (en) | 1995-04-26 |