JPH0427120U - - Google Patents
Info
- Publication number
- JPH0427120U JPH0427120U JP6681690U JP6681690U JPH0427120U JP H0427120 U JPH0427120 U JP H0427120U JP 6681690 U JP6681690 U JP 6681690U JP 6681690 U JP6681690 U JP 6681690U JP H0427120 U JPH0427120 U JP H0427120U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- wall surface
- concave inner
- wall
- injected
- 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
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は２サイクル内燃機関の側面断面図、第
２図は第１図のピストンの平面図、第３図は第１
図のシリンダヘツドの底面図、第４図は給排気弁
の開弁時期および燃料噴射時期を示す線図、第５
図は機関運転中の燃焼室内の様子を説明するため
の図である。
２……ピストン、４……燃焼室、６……給気弁
、７……排気弁、１０……点火栓、１４……燃料
噴射弁、１５……凹溝、１６……凹所。
Figure 1 is a side sectional view of a two-stroke internal combustion engine, Figure 2 is a plan view of the piston in Figure 1, and Figure 3 is a sectional view of the piston in Figure 1.
Fig. 4 is a diagram showing the opening timing of the supply and exhaust valves and fuel injection timing, Fig. 5 is a bottom view of the cylinder head in Fig.
The figure is a diagram for explaining the state inside the combustion chamber during engine operation. 2... Piston, 4... Combustion chamber, 6... Air supply valve, 7... Exhaust valve, 10... Spark plug, 14... Fuel injection valve, 15... Recessed groove, 16... Recess.
Claims (1)
し、シリンダヘツド内壁面の周縁部に燃料噴射弁
を配置し、点火栓の下方から燃料噴射弁の下方ま
で延びる凹溝をピストン頂面上に形成して燃料噴
射弁から該凹溝の凹状内壁面に向けて燃料を噴射
し、機関高負荷運転時には噴射軸線に沿う噴射燃
料が凹状内壁面にほぼ垂直に衝突すると共に機関
低負荷運転時には凹状内壁面に衝突した燃料の大
部分を点火栓下方の凹状内壁面部分に向かわさせ
るべく噴射軸線に沿う噴射燃料が鋭角をなして斜
めに凹状内壁面に衝突するように凹状内壁面の形
状および噴射時期が定められている筒内噴射式内
燃機関。 The ignition plug is placed at the center of the inner wall of the cylinder head, the fuel injection valve is placed at the periphery of the inner wall of the cylinder head, and a groove extending from below the ignition plug to below the fuel injection valve is formed on the top surface of the piston. Then, fuel is injected from the fuel injection valve toward the concave inner wall surface of the groove, and when the engine is operating at high load, the injected fuel along the injection axis collides almost perpendicularly with the concave inner wall surface, and when the engine is operating at low load, the fuel is injected into the concave inner wall surface. The shape and injection timing of the concave inner wall surface are designed so that the injected fuel along the injection axis collides obliquely with the concave inner wall surface at an acute angle in order to direct most of the fuel that collides with the wall toward the concave inner wall surface below the spark plug. Direct injection internal combustion engine.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6681690U JPH082429Y2 (en) | 1990-06-26 | 1990-06-26 | Cylinder injection internal combustion engine |
| US07/706,386 US5127379A (en) | 1990-06-26 | 1991-05-28 | Internal combustion engine |
| DE69101883T DE69101883T2 (en) | 1990-06-26 | 1991-06-25 | Internal combustion engine. |
| EP91110468A EP0464594B1 (en) | 1990-06-26 | 1991-06-25 | An internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6681690U JPH082429Y2 (en) | 1990-06-26 | 1990-06-26 | Cylinder injection internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0427120U true JPH0427120U (en) | 1992-03-04 |
| JPH082429Y2 JPH082429Y2 (en) | 1996-01-29 |
Family
ID=31599855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6681690U Expired - Fee Related JPH082429Y2 (en) | 1990-06-26 | 1990-06-26 | Cylinder injection internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082429Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022136399A (en) * | 2021-03-08 | 2022-09-21 | マツダ株式会社 | Combustion chamber structure for engine |
| JP2023148340A (en) * | 2022-03-30 | 2023-10-13 | カワサキモータース株式会社 | 2 stroke engine |
-
1990
- 1990-06-26 JP JP6681690U patent/JPH082429Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022136399A (en) * | 2021-03-08 | 2022-09-21 | マツダ株式会社 | Combustion chamber structure for engine |
| JP2023148340A (en) * | 2022-03-30 | 2023-10-13 | カワサキモータース株式会社 | 2 stroke engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH082429Y2 (en) | 1996-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |