JPS61194734U - - Google Patents
Info
- Publication number
- JPS61194734U JPS61194734U JP7822185U JP7822185U JPS61194734U JP S61194734 U JPS61194734 U JP S61194734U JP 7822185 U JP7822185 U JP 7822185U JP 7822185 U JP7822185 U JP 7822185U JP S61194734 U JPS61194734 U JP S61194734U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- opening
- control valve
- exhaust passage
- control
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図〜第３図は本考案の一実施例を示すもの
で、第１図は要部の縦断面図、第２図は第１図の
―線に沿う矢視図、第３図は作動を説明する
ための一部を省略した第１図と同様の図である。
１……（２サイクル）エンジン、２……シリン
ダ、３……ピストン、５……排気通路、５ａ……
開口、５ｂ……上縁、６……排気時期制御装置、
７……凹部、８……ガイド孔、８ａ……第１のガ
イド部、８ｂ……第２のガイド部、９……第１制
御弁、９ａ……制御面、９ｂ……下端縁、１０…
…第２制御弁、１０ａ……制御面、１１……支持
筒、１２……回動軸、１３……摺動ロツド、１４
……コイルスプリング（付勢部材）。
Figures 1 to 3 show an embodiment of the present invention, where Figure 1 is a longitudinal sectional view of the main part, Figure 2 is a view taken along the line - in Figure 1, and Figure 3 is a cross-sectional view of the main part. FIG. 2 is a diagram similar to FIG. 1 with some parts omitted for explaining the operation; 1... (2 cycle) engine, 2... cylinder, 3... piston, 5... exhaust passage, 5a...
Opening, 5b...upper edge, 6...exhaust timing control device,
7... Recessed part, 8... Guide hole, 8a... First guide part, 8b... Second guide part, 9... First control valve, 9a... Control surface, 9b... Lower end edge, 10 …
...Second control valve, 10a...Control surface, 11...Support cylinder, 12...Rotating shaft, 13...Sliding rod, 14
...Coil spring (biasing member).
Claims (1)
れた排気通路の開口上部を開閉して、シリンダの
内部に摺動自在に嵌挿されたピストンによるシリ
ンダ内部と排気通路との連通時期を変化させるよ
うにした排気時期制御装置であつて、前記排気通
路の上部で前記開口近傍に揺動自在に取り付けら
れ、その揺動端部にシリンダの内面とほぼ同一曲
率の制御面を有し、かつ、該制御面により前記開
口上部を開閉して該開口の上縁の位置を変化させ
る第１制御弁と、該第１制御弁の上方に摺動自在
に設けられ、前記シリンダの内面とほぼ同一曲率
の制御面を有し、かつ、第１制御弁が開口を閉塞
する位置に揺動させられた際に、第１制御弁の制
御面の上縁と前記開口の上縁との間に侵入して両
者間の間隙を閉塞する第２制御弁とを備え、前記
第２制御弁は、前記排気通路の上方にピストンの
摺動方向に対して傾斜して形成されたガイド孔内
に摺動自在に嵌挿され、該ガイド孔は、その内壁
面の延長線が前記シリンダの内壁面と干渉しあわ
ないように形成されていることを特徴とする２サ
イクルエンジンの排気時期制御装置。 The opening upper part of the exhaust passage communicating with the inside of the cylinder of a two-cycle engine is opened and closed to change the timing of communication between the inside of the cylinder and the exhaust passage by a piston slidably inserted into the cylinder. An exhaust timing control device, which is swingably attached to the upper part of the exhaust passage near the opening, and has a control surface at a swinging end thereof having approximately the same curvature as the inner surface of the cylinder; a first control valve that opens and closes the upper part of the opening to change the position of the upper edge of the opening; and a control surface that is slidably provided above the first control valve and has approximately the same curvature as the inner surface of the cylinder. and when the first control valve is swung to the position where it closes the opening, it enters between the upper edge of the control surface of the first control valve and the upper edge of the opening, causing a gap between the two. a second control valve that closes a gap, the second control valve being slidably inserted into a guide hole formed above the exhaust passage so as to be inclined with respect to the sliding direction of the piston. An exhaust timing control device for a two-stroke engine, wherein the guide hole is formed so that an extension line of the inner wall surface thereof does not interfere with the inner wall surface of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7822185U JPH0240263Y2 (en) | 1985-05-25 | 1985-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7822185U JPH0240263Y2 (en) | 1985-05-25 | 1985-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61194734U true JPS61194734U (en) | 1986-12-04 |
| JPH0240263Y2 JPH0240263Y2 (en) | 1990-10-26 |
Family
ID=30622004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7822185U Expired JPH0240263Y2 (en) | 1985-05-25 | 1985-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240263Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02501083A (en) * | 1987-09-15 | 1990-04-12 | パフォーマンス・インダストリーズ、インコーポレイテッド | Exhaust control valve for a two-stroke cycle engine and method of using the same |
-
1985
- 1985-05-25 JP JP7822185U patent/JPH0240263Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02501083A (en) * | 1987-09-15 | 1990-04-12 | パフォーマンス・インダストリーズ、インコーポレイテッド | Exhaust control valve for a two-stroke cycle engine and method of using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0240263Y2 (en) | 1990-10-26 |
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