JPH0310033U - - Google Patents
Info
- Publication number
- JPH0310033U JPH0310033U JP7138089U JP7138089U JPH0310033U JP H0310033 U JPH0310033 U JP H0310033U JP 7138089 U JP7138089 U JP 7138089U JP 7138089 U JP7138089 U JP 7138089U JP H0310033 U JPH0310033 U JP H0310033U
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- fuel
- combustion chamber
- hole
- diesel 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
- 239000000446 fuel Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図は本考案の一実施例に於けるピストンの
平面図、第２図は本考案の一実施例に係る燃焼室
構造の断面図、第３図はピストンの要部拡大平面
図、第４図はピストンの要部拡大断面図、第５図
は従来の燃焼室構造の断面図である。
１１……燃料噴射ノズル、１３……キヤビテイ
、１３ａ……側壁、１５……ピストン、１５ａ…
…頂面、１７……突出部、１７ａ……燃料衝突面
、２３，２５……渦、Ｆ……燃料、ＳＷ，ＳＷ１
……スワール、ＳＫ……スキツシユ、ＳＫ１……
スキツシユ下降流。
FIG. 1 is a plan view of a piston according to an embodiment of the present invention, FIG. 2 is a sectional view of a combustion chamber structure according to an embodiment of the present invention, and FIG. 3 is an enlarged plan view of the main parts of the piston. FIG. 4 is an enlarged sectional view of a main part of a piston, and FIG. 5 is a sectional view of a conventional combustion chamber structure. 11... Fuel injection nozzle, 13... Cavity, 13a... Side wall, 15... Piston, 15a...
...Top surface, 17...Protrusion, 17a...Fuel collision surface, 23, 25...Vortex, F...Fuel, SW, SW 1
...Swirl, SK... Skitsyu, SK 1 ...
Downdraft.
Claims (1)
らピストン頂面のキヤビテイ内に燃料を放射状に
噴射してなる直噴式デイーゼルエンジンに於て、
上記多噴孔燃料噴射ノズルの各噴孔位置に対応す
るキヤビテイの側壁に、キヤビテイ中心側に突出
し且つその先端に燃料衝突面を有する突出部を形
成すると共に、当該燃料衝突面を、衝突した燃料
がキヤビテイ底面側へ拡散するように下方へ傾斜
させたことを特徴とする直噴式デイーゼルエンジ
ンの燃焼室構造。 In a direct injection diesel engine, fuel is injected radially into a cavity on the top surface of the piston from a multi-hole injection nozzle inserted into the cylinder head.
A protrusion that protrudes toward the center of the cavity and has a fuel collision surface at its tip is formed on the side wall of the cavity corresponding to each nozzle hole position of the multi-hole fuel injection nozzle. The combustion chamber structure of a direct injection diesel engine is characterized by being tilted downward so that the combustion chamber diffuses toward the bottom of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7138089U JPH0310033U (en) | 1989-06-19 | 1989-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7138089U JPH0310033U (en) | 1989-06-19 | 1989-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0310033U true JPH0310033U (en) | 1991-01-30 |
Family
ID=31608357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7138089U Pending JPH0310033U (en) | 1989-06-19 | 1989-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310033U (en) |
-
1989
- 1989-06-19 JP JP7138089U patent/JPH0310033U/ja active Pending