JPH0235929U - - Google Patents
Info
- Publication number
- JPH0235929U JPH0235929U JP11119688U JP11119688U JPH0235929U JP H0235929 U JPH0235929 U JP H0235929U JP 11119688 U JP11119688 U JP 11119688U JP 11119688 U JP11119688 U JP 11119688U JP H0235929 U JPH0235929 U JP H0235929U
- Authority
- JP
- Japan
- Prior art keywords
- upper edge
- edge portion
- scavenging
- exhaust port
- combustion chamber
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000002000 scavenging effect Effects 0.000 claims description 6
- 239000000567 combustion gas Substances 0.000 claims 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
第１図は本考案に係る一実施例を示す２サイク
ル内燃機関のシリンダの縦断面図、第２図は第１
図の機関のシリンダの掃気口の別の実施例正面図
、そして第３図は第２図の線−に沿つた断面
図である。
１……シリンダ、３……排気口、４……掃気口
、８……燃焼室、９……第１上縁部分、１０……
第２上縁部分、１２，１３……内壁頂面。
FIG. 1 is a vertical sectional view of a cylinder of a two-stroke internal combustion engine showing one embodiment of the present invention, and FIG.
FIG. 3 is a front view of another embodiment of the scavenging port of the cylinder of the engine shown in the figure, and FIG. 3 is a sectional view taken along the line - of FIG. 1...Cylinder, 3...Exhaust port, 4...Scavenging port, 8...Combustion chamber, 9...First upper edge portion, 10...
Second upper edge portion, 12, 13... inner wall top surface.
Claims (1)
記燃焼室中の燃焼ガスを排気口３へ排出する掃気
口４を有する２サイクル内燃機関において、前記
掃気口が前記排気口寄りで遅く開く第１上縁部分
９と前記排気口から離間して早く開く第２上縁部
分１０とをそれらの間に段差部１１をもつて形成
し、前記第１上縁部分の内壁頂面１２がほぼ横方
向内方へ延びて掃気流を前記燃焼室の横方向へ吹
出すように形成され、前記第２上縁部分の内壁頂
面１３が斜め上方へ傾斜して延びて掃気流を前記
燃焼室の上方へ向けて吹出すように形成されてい
ることを特徴とする２サイクル内燃機関。 In a two-stroke internal combustion engine having a scavenging port 4 that blows a scavenging air flow into a combustion chamber 8 of a cylinder 1 and exhausts combustion gas in the combustion chamber to an exhaust port 3, the scavenging port opens later toward the exhaust port. A first upper edge portion 9 and a second upper edge portion 10 that is spaced apart from the exhaust port and opens earlier are formed with a stepped portion 11 between them, and the inner wall top surface 12 of the first upper edge portion is substantially horizontal. The top surface 13 of the inner wall of the second upper edge portion extends obliquely upward to direct the scavenging air into the combustion chamber. A two-stroke internal combustion engine characterized by being formed to blow air upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11119688U JPH0235929U (en) | 1988-08-26 | 1988-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11119688U JPH0235929U (en) | 1988-08-26 | 1988-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0235929U true JPH0235929U (en) | 1990-03-08 |
Family
ID=31349036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11119688U Pending JPH0235929U (en) | 1988-08-26 | 1988-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0235929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010043604A (en) * | 2008-08-12 | 2010-02-25 | Hitachi Koki Co Ltd | Two-cycle engine and tool |
-
1988
- 1988-08-26 JP JP11119688U patent/JPH0235929U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010043604A (en) * | 2008-08-12 | 2010-02-25 | Hitachi Koki Co Ltd | Two-cycle engine and tool |