JPS63193734U - - Google Patents
Info
- Publication number
- JPS63193734U JPS63193734U JP8635587U JP8635587U JPS63193734U JP S63193734 U JPS63193734 U JP S63193734U JP 8635587 U JP8635587 U JP 8635587U JP 8635587 U JP8635587 U JP 8635587U JP S63193734 U JPS63193734 U JP S63193734U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- top surface
- cavity
- outer periphery
- 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
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図及び第２図は本考案の実施例を示すピス
トン側断面要部拡大図、第３図は従来例を示すピ
ストン側断面要部拡大図、第４図は従来例を示す
ピストン側断面図、第５図はピストンの温度分布
を示す線図である。
１はピストン、２はキヤビテイ、５はアルマイ
ト処理層、８は凹部を示す。
1 and 2 are enlarged views of main parts of piston side cross-sections showing an embodiment of the present invention, Fig. 3 are enlarged views of main parts of piston side cross-sections showing conventional examples, and Fig. 4 are piston side cross-sectional views of conventional examples. FIG. 5 is a diagram showing the temperature distribution of the piston. 1 is a piston, 2 is a cavity, 5 is an alumite treatment layer, and 8 is a recess.
Claims (1)
ンジンのピストンに於いて、ピストン頂面に、キ
ヤビテイエツジ部からピストン頂面外周部に向か
い所要範囲に亘つて環状の凹部を形成すると共に
、該凹部に前記ピストン頂面と一致するようアル
マイト処理層を形成したことを特徴とする直噴式
デイーゼルエンジンのピストン。 In a piston of a direct injection diesel engine having a cavity at the top, an annular recess is formed on the top surface of the piston over a required range from the cavity edge toward the outer periphery of the piston top surface, and the recess is provided with an annular recess extending from the cavity edge toward the outer periphery of the piston top surface. A piston for a direct injection diesel engine that is characterized by having an alumite treatment layer formed to match that of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8635587U JPS63193734U (en) | 1987-06-03 | 1987-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8635587U JPS63193734U (en) | 1987-06-03 | 1987-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63193734U true JPS63193734U (en) | 1988-12-13 |
Family
ID=30942583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8635587U Pending JPS63193734U (en) | 1987-06-03 | 1987-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63193734U (en) |
-
1987
- 1987-06-03 JP JP8635587U patent/JPS63193734U/ja active Pending