JPS63196433U - - Google Patents
Info
- Publication number
- JPS63196433U JPS63196433U JP8737587U JP8737587U JPS63196433U JP S63196433 U JPS63196433 U JP S63196433U JP 8737587 U JP8737587 U JP 8737587U JP 8737587 U JP8737587 U JP 8737587U JP S63196433 U JPS63196433 U JP S63196433U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- guide sleeve
- exhaust port
- valve body
- hole
- 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
- 230000002093 peripheral effect Effects 0.000 description 2
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図は本考案に係る排気タイミング可変装置
を備えた２サイクルエンジンの一部を示した概念
的な縦断面図、第２図はその排気口の形状を示し
た正面図、第３図は本考案に係る排気タイミング
可変装置の作動状態を示した概念的な要部端面図
である。
１……エンジン、２……ハウジング、２ａ……
上壁、３……シリンダスリーブ、４…排気口、４
ａ……半円状の開口部、５……排気通路、６……
孔、７……ガイドスリーブ、７ａ……面、７ｂ…
…先端周面、７ｃ……基部周面、８…弁体、８ａ
……面、８ｂ……先端周面、８ｃ……基部周面。
Fig. 1 is a conceptual longitudinal sectional view showing a part of a two-stroke engine equipped with a variable exhaust timing device according to the present invention, Fig. 2 is a front view showing the shape of its exhaust port, and Fig. 3 is FIG. 2 is a conceptual end view of essential parts showing the operating state of the variable exhaust timing device according to the present invention. 1...Engine, 2...Housing, 2a...
Upper wall, 3...Cylinder sleeve, 4...Exhaust port, 4
a...Semicircular opening, 5...Exhaust passage, 6...
Hole, 7... Guide sleeve, 7a... Surface, 7b...
...Tip circumferential surface, 7c... Base circumferential surface, 8... Valve body, 8a
... Surface, 8b ... Tip peripheral surface, 8c ... Base peripheral surface.
Claims (1)
断面円形の孔を穿設し、該孔内に下端面が上記排
気口の上面を形成するガイドスリーブを装着する
とともに、該ガイドスリーブに半円柱状の弁体を
摺動自在に添設し、該弁体を突出させて先端で上
記排気口の上部を塞ぎ、排気タイミングを遅らせ
得るようにした排気タイミング可変装置において
、上記ガイドスリーブの先端部周面の曲率を基端
部周面より大きくし、ハウジングとの間に間隙を
形成したことを特徴とする排気タイミング可変装
置。 On the upper wall of the exhaust passage toward the cylinder exhaust port,
A hole with a circular cross section is bored, a guide sleeve whose lower end surface forms the upper surface of the exhaust port is installed in the hole, and a semi-cylindrical valve body is slidably attached to the guide sleeve, In the variable exhaust timing device in which the valve body protrudes to block the upper part of the exhaust port with its tip to delay the exhaust timing, the curvature of the circumferential surface of the distal end of the guide sleeve is made larger than the circumferential surface of the proximal end. , a variable exhaust timing device characterized in that a gap is formed between the device and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8737587U JPH059457Y2 (en) | 1987-06-05 | 1987-06-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8737587U JPH059457Y2 (en) | 1987-06-05 | 1987-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63196433U true JPS63196433U (en) | 1988-12-16 |
| JPH059457Y2 JPH059457Y2 (en) | 1993-03-09 |
Family
ID=30944525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8737587U Expired - Lifetime JPH059457Y2 (en) | 1987-06-05 | 1987-06-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH059457Y2 (en) |
-
1987
- 1987-06-05 JP JP8737587U patent/JPH059457Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH059457Y2 (en) | 1993-03-09 |