JPH01108349U - - Google Patents
Info
- Publication number
- JPH01108349U JPH01108349U JP293688U JP293688U JPH01108349U JP H01108349 U JPH01108349 U JP H01108349U JP 293688 U JP293688 U JP 293688U JP 293688 U JP293688 U JP 293688U JP H01108349 U JPH01108349 U JP H01108349U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cavity
- inner peripheral
- annular groove
- utility
- 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 1
- 239000007924 injection Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図は本考案の一実施例を示すピストン側断
面図、第２図は第１図の―矢視図、第３図は
本考案の他の実施例を示すピストン側断面図、第
４図は第３図の―矢視図、第５図及び第７図
は従来例を示すピストン側断面図、第６図はピス
トンの温度分布図である。
１はピストン、２はキヤビテイ、４はキヤビテ
イエツジ部、８，９は環状溝を示す。
FIG. 1 is a sectional side view of a piston showing one embodiment of the present invention, FIG. 2 is a view taken in the direction of the - arrow in FIG. The drawings are a view taken along the - arrow in FIG. 3, FIGS. 5 and 7 are side sectional views of the piston showing conventional examples, and FIG. 6 is a temperature distribution diagram of the piston. 1 is a piston, 2 is a cavity, 4 is a cavity edge portion, and 8 and 9 are annular grooves.
Claims (1)
ンジンのピストンに於いて、ピストン頂面及びキ
ヤビテイ内周面の少なくとも一方にキヤビテイと
同心状の環状溝を設け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。 1. A piston for a direct injection diesel engine having a cavity at the top, characterized in that the piston has an annular groove concentric with the cavity on at least one of the top surface of the piston and the inner peripheral surface of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP293688U JPH01108349U (en) | 1988-01-13 | 1988-01-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP293688U JPH01108349U (en) | 1988-01-13 | 1988-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01108349U true JPH01108349U (en) | 1989-07-21 |
Family
ID=31204131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP293688U Pending JPH01108349U (en) | 1988-01-13 | 1988-01-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01108349U (en) |
-
1988
- 1988-01-13 JP JP293688U patent/JPH01108349U/ja active Pending