JPH0274528U - - Google Patents
Info
- Publication number
- JPH0274528U JPH0274528U JP15240588U JP15240588U JPH0274528U JP H0274528 U JPH0274528 U JP H0274528U JP 15240588 U JP15240588 U JP 15240588U JP 15240588 U JP15240588 U JP 15240588U JP H0274528 U JPH0274528 U JP H0274528U
- Authority
- JP
- Japan
- Prior art keywords
- recess
- dish part
- fuel
- combustion chamber
- cavity
- 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
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図は本考案の一実施例に係る筒内噴射火花
点火エンジンの縦断面図、第２図は第１図の装置
のシリンダヘツド下面側における燃焼室の横断面
図、第３図は燃料噴射時期の一例を示す特性図、
第４図は別の例を示す燃料噴射時期特性図、第５
図はさらに別の例を示す燃料噴射時期特性図、で
ある。
１……シリンダヘツド、３……ピストン、４…
…浅皿部、５……深皿部、６……キヤビテイ、７
……燃焼室、８……凹部、９……燃料噴射ノズル
、１０……点火プラグ、１１……周縁部内壁面、
１２……噴射燃料、１３……燃料噴霧、１４……
スワール流、１５……スキツシユ流。
Fig. 1 is a longitudinal cross-sectional view of a direct injection spark ignition engine according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of the combustion chamber on the lower surface side of the cylinder head of the device shown in Fig. 1, and Fig. 3 is a fuel Characteristic diagram showing an example of injection timing,
Fig. 4 is a fuel injection timing characteristic diagram showing another example;
The figure is a fuel injection timing characteristic diagram showing yet another example. 1...Cylinder head, 3...Piston, 4...
...Shallow dish part, 5...Deep dish part, 6...Cavity, 7
... Combustion chamber, 8 ... Recess, 9 ... Fuel injection nozzle, 10 ... Spark plug, 11 ... Peripheral inner wall surface,
12...Injected fuel, 13...Fuel spray, 14...
Swirl style, 15... Skitsyu style.
Claims (1)
燃焼室を形成し、該キヤビテイを浅皿部と該浅皿
部内に形成された浅皿部よりも小径の深皿部との
二重構造にした筒内噴射火花点火エンジンにおい
て、シリンダヘツド下面の前記深皿部の上方位置
に、深皿部よりも小径の凹部を設け、該凹部内に
、燃料噴射ノズルおよび点火プラグを臨ませると
ともに、凹部の周縁部内壁面を、燃料噴射ノズル
からの噴射燃料が衝突し該衝突により飛散した燃
料を下方の燃焼室に導くことが可能な壁面に構成
したことを特徴とする筒内噴射火花点火エンジン
。 A combustion chamber is formed by providing a cavity at the top of the piston, and the cavity has a double structure of a shallow dish part and a deep dish part formed within the shallow dish part and having a smaller diameter than the shallow dish part. In the ignition engine, a recess with a smaller diameter than the deep dish is provided at a position above the deep dish on the lower surface of the cylinder head, and a fuel injection nozzle and a spark plug are faced into the recess, and the inner wall surface of the peripheral edge of the recess is 1. A direct injection spark ignition engine, characterized in that the wall surface is configured such that fuel injected from a fuel injection nozzle collides and fuel scattered by the collision can be guided to a combustion chamber below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15240588U JPH0274528U (en) | 1988-11-25 | 1988-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15240588U JPH0274528U (en) | 1988-11-25 | 1988-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274528U true JPH0274528U (en) | 1990-06-07 |
Family
ID=31427301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15240588U Pending JPH0274528U (en) | 1988-11-25 | 1988-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274528U (en) |
-
1988
- 1988-11-25 JP JP15240588U patent/JPH0274528U/ja active Pending