JPH0457615U - - Google Patents
Info
- Publication number
- JPH0457615U JPH0457615U JP10082390U JP10082390U JPH0457615U JP H0457615 U JPH0457615 U JP H0457615U JP 10082390 U JP10082390 U JP 10082390U JP 10082390 U JP10082390 U JP 10082390U JP H0457615 U JPH0457615 U JP H0457615U
- Authority
- JP
- Japan
- Prior art keywords
- scavenging
- blow
- cylinder
- direct injection
- stroke engine
- 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 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims 1
- 238000010992 reflux Methods 0.000 claims 1
- 238000007790 scraping Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
第１図は本考案の一実施例を示す２サイクル直
噴エンジンの概略構成断面図である。
１……エンジン本体、２……シリンダ、３……
ピストン、４……クランクケース、５……クラン
ク軸、６……コネクテイングロツド、７……バラ
ンサ、８……オイルパン、９……燃焼室、１０…
…点火プラグ、１１……インジエクタ、１２……
排気ポート、１３……排気ロータリバルブ、１４
……ベルト伝動手段、１５……排気管、１６……
排気チヤンバ、１７……マフラ、１８……掃気ポ
ート、１９……掃気管、２０……掃気チヤンバ、
２１……インタークーラ、２２……掃気ポンプ、
２３……ベルト伝動手段、２４……吸入管、２５
……エアクリーナ、２６……バイパス通路、２７
……アクセルペダル、２８……制御弁、２９……
ブローバイ通路、３０……セパレータ、３１……
オイルリング、３２……耐圧オイルシール、３３
……エアフローメータ。
FIG. 1 is a schematic sectional view of a two-stroke direct injection engine showing an embodiment of the present invention. 1...Engine body, 2...Cylinder, 3...
Piston, 4... Crankcase, 5... Crankshaft, 6... Connecting rod, 7... Balancer, 8... Oil pan, 9... Combustion chamber, 10...
...Spark plug, 11...Injector, 12...
Exhaust port, 13...Exhaust rotary valve, 14
...Belt transmission means, 15...Exhaust pipe, 16...
Exhaust chamber, 17... muffler, 18... scavenging port, 19... scavenging pipe, 20... scavenging chamber,
21...Intercooler, 22...Scavenging pump,
23...Belt transmission means, 24...Suction pipe, 25
...Air cleaner, 26...Bypass passage, 27
...Accelerator pedal, 28...Control valve, 29...
Blow-by passage, 30... Separator, 31...
Oil ring, 32...Pressure-resistant oil seal, 33
...Air flow meter.
Claims (1)
掃気ポンプと、シリンダの排気ポートをクランク
軸の回転に同期して開閉する排気ロータリバルブ
と、エンジンの燃焼室内に燃料を直接噴射するイ
ンジエクタとを備えた筒内直噴式２サイクルエン
ジンにおいて、 クランクケース内をセパレータを有するブロー
バイ通路を介して掃気ポート近傍の掃気管に連通
してなる筒内直噴式２サイクルエンジンのブロー
バイガス還流装置。 ２ ピストンにはオイル掻き用のオイルリングを
装着し、クランク軸には耐圧オイルシールを装着
してなる請求項１記載の筒内直噴式２サイクルエ
ンジンのブローバイガス還流装置。[Scope of Claim for Utility Model Registration] 1. A scavenging pump that pressure-feeds intake air to the scavenging port of the cylinder, an exhaust rotary valve that opens and closes the exhaust port of the cylinder in synchronization with the rotation of the crankshaft, and a system that supplies fuel into the combustion chamber of the engine. In a direct injection two-stroke engine equipped with an injector that injects directly, the blow-by gas of the direct injection two-stroke engine is connected to the scavenging pipe near the scavenging port through a blow-by passage having a separator in the crankcase. Reflux device. 2. The blow-by gas recirculation system for an in-cylinder direct injection two-stroke engine according to claim 1, wherein the piston is equipped with an oil ring for scraping oil, and the crankshaft is equipped with a pressure-resistant oil seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10082390U JPH0457615U (en) | 1990-09-26 | 1990-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10082390U JPH0457615U (en) | 1990-09-26 | 1990-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457615U true JPH0457615U (en) | 1992-05-18 |
Family
ID=31843761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10082390U Pending JPH0457615U (en) | 1990-09-26 | 1990-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457615U (en) |
-
1990
- 1990-09-26 JP JP10082390U patent/JPH0457615U/ja active Pending
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