JPH0199950U - - Google Patents
Info
- Publication number
- JPH0199950U JPH0199950U JP19504987U JP19504987U JPH0199950U JP H0199950 U JPH0199950 U JP H0199950U JP 19504987 U JP19504987 U JP 19504987U JP 19504987 U JP19504987 U JP 19504987U JP H0199950 U JPH0199950 U JP H0199950U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cavity
- diesel engine
- injection diesel
- direct
- 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)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の一実施例を示すピストン平面
図、第２図は従来例を示すピストン側断面図、第
３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、５は環状部を示す。
FIG. 1 is a plan view of a piston showing an embodiment of the present invention, FIG. 2 is a sectional side view of a piston showing a conventional example, and FIG. 3 is a temperature distribution diagram of the piston. 1 is a piston, 2 is a cavity, 4 is a cavity edge portion, and 5 is an annular portion.
Claims (1)
ンジンのピストンに於いて、ピストン頂面に、高
周波により熱を加え引張残留応力を生じせしめた
環状部を、前記キヤビテイより大径で且つ該キヤ
ビテイと同心状となるよう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 direct-injection diesel engine piston having a cavity at the top, an annular portion that is heated by high frequency waves to generate tensile residual stress is placed on the top surface of the piston, and has a larger diameter than the cavity and is concentric with the cavity. The piston of a direct injection diesel engine is characterized by its shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19504987U JPH0199950U (en) | 1987-12-23 | 1987-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19504987U JPH0199950U (en) | 1987-12-23 | 1987-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0199950U true JPH0199950U (en) | 1989-07-05 |
Family
ID=31485745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19504987U Pending JPH0199950U (en) | 1987-12-23 | 1987-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0199950U (en) |
-
1987
- 1987-12-23 JP JP19504987U patent/JPH0199950U/ja active Pending