JPH01130049U - - Google Patents
Info
- Publication number
- JPH01130049U JPH01130049U JP2448088U JP2448088U JPH01130049U JP H01130049 U JPH01130049 U JP H01130049U JP 2448088 U JP2448088 U JP 2448088U JP 2448088 U JP2448088 U JP 2448088U JP H01130049 U JPH01130049 U JP H01130049U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- skirt portion
- thrust side
- recess
- thrust
- 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 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の一実施例の正面図、第２図は
同上実施例のスラスト側から見た側面図、第３図
は同上実施例の反スラスト側から見た側面図、第
４図、第５図は同上実施例の作用を示すもので、
第４図は正面図、第５図は反スラスト側の側面図
、第６図、第７図は従来のピストンの作用を示す
もので、第６図は正面図、第７図は反スラスト側
の側面図である。
１……ピストン、３……スカート部、３ａ……
スラスト側スカート部、３ｂ……反スラスト側ス
カート部、５……オイルリング溝、７……ピスト
ンピン、８……オイル戻し用凹部、１０……シリ
ンダボア。
Figure 1 is a front view of one embodiment of the present invention, Figure 2 is a side view of the same embodiment as seen from the thrust side, Figure 3 is a side view of the same embodiment as seen from the anti-thrust side, and Figure 4. , FIG. 5 shows the operation of the above embodiment,
Figure 4 is a front view, Figure 5 is a side view of the anti-thrust side, Figures 6 and 7 show the action of a conventional piston, Figure 6 is a front view, and Figure 7 is a side view of the anti-thrust side. FIG. 1...Piston, 3...Skirt portion, 3a...
Thrust side skirt portion, 3b... Anti-thrust side skirt portion, 5... Oil ring groove, 7... Piston pin, 8... Oil return recess, 10... Cylinder bore.
Claims (1)
方のスカート部の、ピストンピンの軸方向側面に
オイル戻し用の凹部を形成し、この凹部は、その
横幅がスカート部のスラスト側において上端から
下端に向つて徐々に狭くまたスカート部の反スラ
スト側において上端から下端に向つて徐々に広が
るような形状としたことを特徴とする内燃機関の
ピストン。 A recess for oil return is formed on the axial side surface of the piston pin in the skirt portion below the oil ring groove formed on the outer periphery of the piston, and the width of the recess extends from the upper end to the lower end on the thrust side of the skirt portion. A piston for an internal combustion engine, characterized in that the piston has a shape that gradually narrows and gradually widens from the upper end toward the lower end on the anti-thrust side of the skirt portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2448088U JPH01130049U (en) | 1988-02-27 | 1988-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2448088U JPH01130049U (en) | 1988-02-27 | 1988-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01130049U true JPH01130049U (en) | 1989-09-05 |
Family
ID=31244364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2448088U Pending JPH01130049U (en) | 1988-02-27 | 1988-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01130049U (en) |
-
1988
- 1988-02-27 JP JP2448088U patent/JPH01130049U/ja active Pending