JPH023065U - - Google Patents
Info
- Publication number
- JPH023065U JPH023065U JP7951988U JP7951988U JPH023065U JP H023065 U JPH023065 U JP H023065U JP 7951988 U JP7951988 U JP 7951988U JP 7951988 U JP7951988 U JP 7951988U JP H023065 U JPH023065 U JP H023065U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- axial direction
- scavenging passage
- groove
- decompression
- 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 5
- 230000002000 scavenging effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図イは本考案の実施例の縦断面図、第１図
ロは第１図イのシリンダの全体断面図、第１図ハ
は第１図ロのＡ―Ａ矢視図、第２図はピストン含
む掃気通路周辺の断面図、第３図イ，ロはデコン
プ溝の断面図及び側面図、第４図イ，ロは他の形
状のデコンプ溝の断面図及び側面図、第５図は従
来装置の縦断面図、第６図は第５図の圧縮ガス漏
洩溝部分の拡大図、第７図乃至第１１図は従来の
圧縮ガス漏洩溝の形状を示すもので第５図のＢ―
Ｂ矢視図である。
１……シリンダ、１９……冷却フアン、２０，
２０′……掃気通路、２１……デコンプ溝、２３
……クランクケース。
FIG. 1A is a vertical sectional view of an embodiment of the present invention, FIG. 1B is an overall sectional view of the cylinder in FIG. 1A, FIG. The figure is a cross-sectional view of the area around the scavenging passage including the piston, Figure 3 A and B are cross-sectional views and side views of the decompression groove, Figure 4 A and B are cross-sectional views and side views of decompression grooves of other shapes, and Figure 5 6 is an enlarged view of the compressed gas leak groove portion of FIG. 5, and FIGS. 7 to 11 show the shape of the conventional compressed gas leak groove. ―
It is a view from arrow B. 1...Cylinder, 19...Cooling fan, 20,
20'...Scavenging passage, 21...Decompression groove, 23
……Crankcase.
Claims (1)
ースに連通する掃気通路と、掃気通路の上端部で
シリンダ冷却風の風上側にシリンダの軸方向に刳
設されたデコンプ溝とを具え、前記デコンプ溝の
巾、深さを溝の軸方向で変化させたプラグ側に先
細としたことを特徴とする２サイクルエンジンの
デコンプ装置。 The scavenging passage is formed in the axial direction on the inner wall of the cylinder and communicates with the crankcase, and the decompression groove is formed in the axial direction of the cylinder on the windward side of the cylinder cooling air at the upper end of the scavenging passage. A decompression device for a two-stroke engine characterized by a groove whose width and depth are varied in the axial direction and tapered toward the plug side.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7951988U JPH077577Y2 (en) | 1988-06-17 | 1988-06-17 | Two-cycle engine decompression device |
| US07/353,322 US5054441A (en) | 1988-06-17 | 1989-05-15 | Decompression device in a two-cycle engine |
| EP89109670A EP0346675B1 (en) | 1988-06-17 | 1989-05-29 | Decompression device in a two-cycle engine |
| DE89109670T DE68908027T2 (en) | 1988-06-17 | 1989-05-29 | Decompression device for two-stroke internal combustion engine. |
| DE198989109670T DE346675T1 (en) | 1988-06-17 | 1989-05-29 | DECOMPRESSION DEVICE FOR TWO-STROKE COMBUSTION ENGINE. |
| CA000601157A CA1323309C (en) | 1988-06-17 | 1989-05-30 | Decompression device in a two-cycle engine |
| AU35888/89A AU605984B2 (en) | 1988-06-17 | 1989-05-31 | Decompression device in a two-cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7951988U JPH077577Y2 (en) | 1988-06-17 | 1988-06-17 | Two-cycle engine decompression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH023065U true JPH023065U (en) | 1990-01-10 |
| JPH077577Y2 JPH077577Y2 (en) | 1995-02-22 |
Family
ID=31304393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7951988U Expired - Lifetime JPH077577Y2 (en) | 1988-06-17 | 1988-06-17 | Two-cycle engine decompression device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077577Y2 (en) |
-
1988
- 1988-06-17 JP JP7951988U patent/JPH077577Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077577Y2 (en) | 1995-02-22 |