JPH01173344U - - Google Patents
Info
- Publication number
- JPH01173344U JPH01173344U JP6532688U JP6532688U JPH01173344U JP H01173344 U JPH01173344 U JP H01173344U JP 6532688 U JP6532688 U JP 6532688U JP 6532688 U JP6532688 U JP 6532688U JP H01173344 U JPH01173344 U JP H01173344U
- Authority
- JP
- Japan
- Prior art keywords
- scavenging
- exhaust
- cylinder
- port
- rotary valve
- 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
- 230000002000 scavenging effect Effects 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図は本考案の２サイクルエンジンの実施例
を示す全体の構成図、第２図は制御ユニツトのブ
ロツク図、第３図はバルブタイミングを示す図、
第４図ａないしｄは各特性図である。
１……２サイクルエンジン本体、２……シリン
ダ、３……ピストン、４……クランク室、８……
燃焼室、１０……インジエクタ、１１……排気ポ
ート、１２……排気ロータリ弁、１４……排気ポ
ンプ、１５……変速機構、３０……掃気ポート。
Fig. 1 is an overall configuration diagram showing an embodiment of the two-stroke engine of the present invention, Fig. 2 is a block diagram of the control unit, Fig. 3 is a diagram showing valve timing,
FIGS. 4a to 4d are characteristic diagrams. 1... 2-stroke engine body, 2... cylinder, 3... piston, 4... crank chamber, 8...
Combustion chamber, 10...Injector, 11...Exhaust port, 12...Exhaust rotary valve, 14...Exhaust pump, 15...Transmission mechanism, 30...Scavenging port.
Claims (1)
、上記掃気ポートは、ピストン上昇時におけるク
ランク室に発生する負圧でクランクケース内に吸
気し、上記ピストン下降時のケース圧で吸気を上
記掃気ポートより上記シリンダに導入するように
上記クランク室に連通し、燃焼室側に筒内に直接
燃料噴射するインジエクタを設けた２サイクルエ
ンジンにおいて、 上記排気ポートに掃気の途中で閉じる排気ロー
タリ弁を設け、 上記排気ロータリ弁の下流に回転数可変の排気
ポンプを設けて、掃気行程の前段で掃気作用を行
なうことを特徴とする２サイクルエンジン。[Scope of Claim for Utility Model Registration] An exhaust port and a scavenging port are opened in the cylinder. In a two-stroke engine, which communicates with the crank chamber so that intake air is introduced into the cylinder from the scavenging port at pressure, and is provided with an injector on the combustion chamber side that injects fuel directly into the cylinder, the exhaust port is filled with air during scavenging. A two-stroke engine characterized in that a closed exhaust rotary valve is provided, and an exhaust pump with a variable rotation speed is provided downstream of the exhaust rotary valve to perform a scavenging operation at a stage before a scavenging stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6532688U JPH01173344U (en) | 1988-05-17 | 1988-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6532688U JPH01173344U (en) | 1988-05-17 | 1988-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01173344U true JPH01173344U (en) | 1989-12-08 |
Family
ID=31290766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6532688U Pending JPH01173344U (en) | 1988-05-17 | 1988-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01173344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538348A (en) * | 2018-10-16 | 2019-03-29 | 安徽省飞腾航空科技有限公司 | A kind of exhaust of light aircraft engine and pressurization coupling device |
| CN109538342A (en) * | 2018-10-16 | 2019-03-29 | 安徽省飞腾航空科技有限公司 | A kind of light aircraft engine tail gas exhaust device and its working method |
-
1988
- 1988-05-17 JP JP6532688U patent/JPH01173344U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538348A (en) * | 2018-10-16 | 2019-03-29 | 安徽省飞腾航空科技有限公司 | A kind of exhaust of light aircraft engine and pressurization coupling device |
| CN109538342A (en) * | 2018-10-16 | 2019-03-29 | 安徽省飞腾航空科技有限公司 | A kind of light aircraft engine tail gas exhaust device and its working method |
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