JPH0264722U - - Google Patents
Info
- Publication number
- JPH0264722U JPH0264722U JP14276288U JP14276288U JPH0264722U JP H0264722 U JPH0264722 U JP H0264722U JP 14276288 U JP14276288 U JP 14276288U JP 14276288 U JP14276288 U JP 14276288U JP H0264722 U JPH0264722 U JP H0264722U
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- fuel
- piston
- reflecting surface
- concave
- 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 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図はピストンの平面図、第２図は本考案に
よるデイーゼル機関の側面断面図、第３図は第２
図の拡大側面断面図、第４図は燃焼方法を説明す
るための図、第５図は別の実施例を示すピストン
の側面断面図、第６図はさらに別の実施例を示す
デイーゼル機関の側面断面図である。
２…ピストン、３…シリンダヘツド、４…シリ
ンダ室、５…燃料噴射弁、６…キヤビテイ、１１
…環状リツプ、１１ｂ…凹状燃料反射面、１４…
空気導入孔。
Fig. 1 is a plan view of the piston, Fig. 2 is a side sectional view of the diesel engine according to the present invention, and Fig. 3 is a plan view of the piston.
4 is a diagram for explaining the combustion method, FIG. 5 is a side sectional view of a piston showing another embodiment, and FIG. 6 is a side sectional view of a diesel engine showing yet another embodiment. FIG. 2...Piston, 3...Cylinder head, 4...Cylinder chamber, 5...Fuel injection valve, 6...Cavity, 11
...Annular lip, 11b...Concave fuel reflecting surface, 14...
Air introduction hole.
Claims (1)
上に断面円弧状の凹状燃料反射面を形成して燃料
噴射弁から前記凹状燃料反射面に向けて燃料を噴
射させ、前記凹状燃料反射面の形成位置および断
面形状を前記凹状燃料反射面において反射した噴
射燃料が前記ピストンの上昇に伴つて前記キヤビ
テイ周辺部から前記キヤビテイ中心部まで順次移
動するように定め、前記ピストン頂面とシリンダ
ヘツド内壁面間に形成される空間と前記キヤビテ
イ内とを連通する空気導入孔を前記ピストンに形
成し、該空気導入孔を前記キヤビテイ内周壁面に
ほぼ接線状に開口させた直噴式デイーゼル機関の
燃焼室。 A concave fuel reflecting surface having an arcuate cross section is formed on the inner circumferential wall surface of the cavity formed on the top surface of the piston, and fuel is injected from the fuel injection valve toward the concave fuel reflecting surface, and the formation position of the concave fuel reflecting surface is formed. and a cross-sectional shape such that the injected fuel reflected on the concave fuel reflecting surface sequentially moves from the periphery of the cavity to the center of the cavity as the piston rises, and between the top surface of the piston and the inner wall surface of the cylinder head. A combustion chamber for a direct injection diesel engine, wherein an air introduction hole is formed in the piston to communicate a space formed with the inside of the cavity, and the air introduction hole is opened substantially tangentially to an inner circumferential wall surface of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14276288U JPH0264722U (en) | 1988-11-02 | 1988-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14276288U JPH0264722U (en) | 1988-11-02 | 1988-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264722U true JPH0264722U (en) | 1990-05-15 |
Family
ID=31408983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14276288U Pending JPH0264722U (en) | 1988-11-02 | 1988-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264722U (en) |
-
1988
- 1988-11-02 JP JP14276288U patent/JPH0264722U/ja active Pending