JPH02115916U - - Google Patents
Info
- Publication number
- JPH02115916U JPH02115916U JP2564589U JP2564589U JPH02115916U JP H02115916 U JPH02115916 U JP H02115916U JP 2564589 U JP2564589 U JP 2564589U JP 2564589 U JP2564589 U JP 2564589U JP H02115916 U JPH02115916 U JP H02115916U
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- piston
- injection nozzle
- top surface
- fuel injection
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図は本考案のデイーゼル機関の燃焼室構造
の一実施例を示す縦断面図、第２図は本考案のデ
イーゼル機関の燃焼室構造の他の実施例を示す縦
断面図、第３図は本考案のデイーゼル機関の燃焼
室構造のさらに他の実施例を示す縦断面図、第４
図は従来のデイーゼル機関の燃焼室構造を示す縦
断面図である。
３１，６５……ピストン、３３……シリンダ、
３５……燃焼室、４１，６７……頂面、４３，５
７，６９……キヤビテイ、４５，７７……シリン
ダヘツド、４７，５５，７３……燃料噴射ノズル
、４９，６３，７５……開口部、５０，６４，７
６……絞り部。
FIG. 1 is a vertical cross-sectional view showing one embodiment of the combustion chamber structure of a diesel engine according to the present invention, FIG. 2 is a vertical cross-sectional view showing another example of the combustion chamber structure of a diesel engine according to the present invention, and FIG. 4 is a longitudinal sectional view showing still another embodiment of the combustion chamber structure of a diesel engine according to the present invention.
The figure is a longitudinal sectional view showing the structure of a combustion chamber of a conventional diesel engine. 31, 65... Piston, 33... Cylinder,
35...Combustion chamber, 41,67...Top surface, 43,5
7,69...Cavity, 45,77...Cylinder head, 47,55,73...Fuel injection nozzle, 49,63,75...Opening, 50,64,7
6... Aperture section.
Claims (1)
ビテイを形成すると共に、前記ピストンの頂面に
対向して配置されるシリンダヘツドに、前記ピス
トンが上死点近傍に位置した時に前記キヤビテイ
内の燃料を噴射する燃料噴射ノズルを装着してな
るデイーゼル機関の燃焼室構造において、前記ピ
ストンの頂面に形成される前記キヤビテイの開口
部の内径を、前記キヤビテイ内部の内径よりも小
径に形成して絞り部を構成すると共に、前記燃料
噴射ノズルを、前記ピトンが上死点近傍に位置し
た時に前記燃料噴射ノズルの先端部が前記キヤビ
テイの絞り部に突入するように前記シリンダヘツ
ドに装着してなることを特徴とするデイーゼル機
関の燃焼室構造。 A cavity is formed in the top surface of the piston housed in the cylinder, and the fuel in the cavity is supplied to the cylinder head disposed opposite to the top surface of the piston when the piston is located near the top dead center. In the combustion chamber structure of a diesel engine equipped with a fuel injection nozzle for injecting fuel, the inner diameter of the opening of the cavity formed on the top surface of the piston is formed to be smaller than the inner diameter of the inside of the cavity to form a constriction part. and the fuel injection nozzle is attached to the cylinder head so that the tip of the fuel injection nozzle projects into the constriction part of the cavity when the piton is located near top dead center. Characteristic combustion chamber structure of diesel engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2564589U JPH02115916U (en) | 1989-03-06 | 1989-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2564589U JPH02115916U (en) | 1989-03-06 | 1989-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02115916U true JPH02115916U (en) | 1990-09-17 |
Family
ID=31246561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2564589U Pending JPH02115916U (en) | 1989-03-06 | 1989-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02115916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993000504A1 (en) * | 1991-06-21 | 1993-01-07 | Nippon Clean Engine Research Institute Co., Ltd. | Direct injection type compression ignition internal combustion engine |
-
1989
- 1989-03-06 JP JP2564589U patent/JPH02115916U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993000504A1 (en) * | 1991-06-21 | 1993-01-07 | Nippon Clean Engine Research Institute Co., Ltd. | Direct injection type compression ignition internal combustion engine |