JPH0325838U - - Google Patents
Info
- Publication number
- JPH0325838U JPH0325838U JP8496889U JP8496889U JPH0325838U JP H0325838 U JPH0325838 U JP H0325838U JP 8496889 U JP8496889 U JP 8496889U JP 8496889 U JP8496889 U JP 8496889U JP H0325838 U JPH0325838 U JP H0325838U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- combustion chamber
- cooling cavity
- ring groove
- circumferential surface
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の一実施例におけるピストンの
縦断面図、第２図は第１図の−方向の側断面
図である。第３図及び第４図は本考案及び従来の
ピストンをそれぞれ燃焼室内壁煙量と時間の関係
を示す線図である。第５図は第１図のピストン要
部を拡大した説明用縦断面図、第６図、第７図及
び第８図はそれぞれ異なる従来のピストンの要部
の縦断面図である。
１…ピストン、２…リング溝、３…冷却用空洞
、５…燃焼室、１５…パイプ、Ｌ…冷却油。
FIG. 1 is a longitudinal cross-sectional view of a piston in an embodiment of the present invention, and FIG. 2 is a side cross-sectional view in the - direction of FIG. 1. FIGS. 3 and 4 are diagrams showing the relationship between the amount of smoke inside the combustion chamber and time for the piston of the present invention and the conventional piston, respectively. FIG. 5 is an explanatory longitudinal cross-sectional view of an enlarged main part of the piston shown in FIG. 1, and FIGS. 6, 7, and 8 are longitudinal cross-sectional views of main parts of different conventional pistons. DESCRIPTION OF SYMBOLS 1... Piston, 2... Ring groove, 3... Cooling cavity, 5... Combustion chamber, 15... Pipe, L... Cooling oil.
Claims (1)
周面に設けたピストンリング溝と、前記燃焼室の
周りのピストンの内部に環状に形成した冷却用空
洞とを有し、該冷却用空洞には燃焼室側に中空パ
イプが鋳込まれていることを特徴とする内燃機関
のピストン。 The piston has a concave combustion chamber formed at the top of the piston, a piston ring groove formed on the outer circumferential surface, and a cooling cavity formed in an annular shape inside the piston around the combustion chamber, and the cooling cavity includes: A piston for an internal combustion engine characterized by a hollow pipe cast into the combustion chamber side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989084968U JP2549455Y2 (en) | 1989-07-21 | 1989-07-21 | Internal combustion engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989084968U JP2549455Y2 (en) | 1989-07-21 | 1989-07-21 | Internal combustion engine piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0325838U true JPH0325838U (en) | 1991-03-18 |
| JP2549455Y2 JP2549455Y2 (en) | 1997-09-30 |
Family
ID=31633807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989084968U Expired - Lifetime JP2549455Y2 (en) | 1989-07-21 | 1989-07-21 | Internal combustion engine piston |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2549455Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848952U (en) * | 1981-09-30 | 1983-04-02 | 日産デイ−ゼル工業株式会社 | internal combustion engine piston |
| JPS60187345U (en) * | 1984-05-21 | 1985-12-12 | 日産ディーゼル工業株式会社 | Piston for internal combustion engine |
| JPS63127755U (en) * | 1987-02-06 | 1988-08-22 |
-
1989
- 1989-07-21 JP JP1989084968U patent/JP2549455Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848952U (en) * | 1981-09-30 | 1983-04-02 | 日産デイ−ゼル工業株式会社 | internal combustion engine piston |
| JPS60187345U (en) * | 1984-05-21 | 1985-12-12 | 日産ディーゼル工業株式会社 | Piston for internal combustion engine |
| JPS63127755U (en) * | 1987-02-06 | 1988-08-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2549455Y2 (en) | 1997-09-30 |