JPS63200625U - - Google Patents
Info
- Publication number
- JPS63200625U JPS63200625U JP9181387U JP9181387U JPS63200625U JP S63200625 U JPS63200625 U JP S63200625U JP 9181387 U JP9181387 U JP 9181387U JP 9181387 U JP9181387 U JP 9181387U JP S63200625 U JPS63200625 U JP S63200625U
- Authority
- JP
- Japan
- Prior art keywords
- diesel engine
- guide groove
- type diesel
- piston
- chamber type
- 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 4
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図および第２図は本考案の一実施例を示し
、第１図は本考案におけるピストンの平面図、第
２図は副室式デイーゼルエンジンのピストン上部
周辺を示す縦断面図であり、第３図は従来の副室
式デイーゼルエンジンのピストンの平面図である
。
１……副室式デイーゼルエンジン、２……主燃
焼室、３……副燃焼室、３ａ……噴孔、４……ピ
ストン、４ａ……上面、６……ガイド溝、６ａ…
…噴孔下部。
1 and 2 show an embodiment of the present invention, FIG. 1 is a plan view of a piston according to the present invention, and FIG. 2 is a longitudinal cross-sectional view showing the vicinity of the upper part of the piston of a pre-chamber type diesel engine. FIG. 3 is a plan view of a piston of a conventional pre-chamber type diesel engine. DESCRIPTION OF SYMBOLS 1...Sub-chamber diesel engine, 2...Main combustion chamber, 3...Sub-combustion chamber, 3a...Nozzle hole, 4...Piston, 4a...Top surface, 6...Guide groove, 6a...
...lower part of the nozzle.
Claims (1)
面には副燃焼室の噴孔から流出する噴流を主燃焼
室中央およびその流出延長方向へ導く略扇状のガ
イド溝が設けられ、該ガイド溝は噴孔の下部から
上記流出延長方向へ向けて断面において漸次浅く
且つ末広がりに形成されると共に、除々に通路面
積が狭く形成されたことを特徴とする副室式デイ
ーゼルエンジン。 (2) ガイド溝の噴流の流出終端部はピストンの
上面と同一面となるよう連続していることを特徴
とする実用新案登録請求の範囲第１項記載の副室
式デイーゼルエンジン。[Claims for Utility Model Registration] (1) The upper surface of the piston of a sub-chamber type diesel engine has a substantially fan-shaped guide groove that guides the jet flowing out from the nozzle hole of the sub-combustion chamber toward the center of the main combustion chamber and its outflow extension direction. A pre-chamber type diesel engine, wherein the guide groove is formed to be gradually shallower and wider in cross section from the lower part of the nozzle hole toward the outflow extension direction, and the passage area is gradually narrower. . (2) The pre-chamber type diesel engine according to claim 1, wherein the guide groove has an outflow end portion that is continuous so as to be flush with the upper surface of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9181387U JPS63200625U (en) | 1987-06-15 | 1987-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9181387U JPS63200625U (en) | 1987-06-15 | 1987-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63200625U true JPS63200625U (en) | 1988-12-23 |
Family
ID=30952939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9181387U Pending JPS63200625U (en) | 1987-06-15 | 1987-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63200625U (en) |
-
1987
- 1987-06-15 JP JP9181387U patent/JPS63200625U/ja active Pending