JPH0163753U - - Google Patents
Info
- Publication number
- JPH0163753U JPH0163753U JP1987159839U JP15983987U JPH0163753U JP H0163753 U JPH0163753 U JP H0163753U JP 1987159839 U JP1987159839 U JP 1987159839U JP 15983987 U JP15983987 U JP 15983987U JP H0163753 U JPH0163753 U JP H0163753U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- lubricating oil
- back surface
- recess
- guide groove
- 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 description 4
- 239000010687 lubricating oil Substances 0.000 claims 4
- 239000012530 fluid Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
Description
第１図はピストン頂面の平面図、第２図はピス
トンの縦断面図、第３図はピストン外周のトツプ
リング溝底部の温度を示すグラフである。
１……ピストン、３……燃焼室、７……凹部、
９……ガイド溝。
FIG. 1 is a plan view of the top surface of the piston, FIG. 2 is a vertical sectional view of the piston, and FIG. 3 is a graph showing the temperature at the bottom of the top ring groove on the outer periphery of the piston. 1... Piston, 3... Combustion chamber, 7... Recess,
9...Guide groove.
Claims (1)
なうものにおいて、そのピストン裏面の高温部に
対応して潤滑油の滞留する凹部を形成するととも
に、その吹き付けられた潤滑油を前記凹部へ向け
て流動させるようなガイド溝を形成した内燃機関
のピストン。 ２ 頂面にシリンダ中心線よりも偏心して燃焼室
を形成したピストンの裏面において、前記のガイ
ド溝が、そのピストン裏面に吹き付けられた潤滑
油を、前記偏心方向の周面側であつて、かつ、吸
気弁よりも排気弁に対応する側へ導くような構造
とした実用新案登録請求の範囲第１項記載の内燃
機関のピストン。[Claims for Utility Model Registration] 1. In a device that cools the piston by spraying lubricating oil on the back surface of the piston, a recess is formed in which the lubricating oil stays corresponding to the high temperature part of the piston back surface, and the sprayed lubricating oil is A piston for an internal combustion engine in which a guide groove is formed to cause the fluid to flow toward the recess. 2. On the back surface of the piston, which has a combustion chamber formed eccentrically with respect to the cylinder center line on the top surface, the guide groove is arranged so that the lubricating oil sprayed on the back surface of the piston is on the circumferential surface side in the eccentric direction, and A piston for an internal combustion engine according to claim 1, which is structured to be guided toward a side corresponding to an exhaust valve rather than an intake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987159839U JPH0163753U (en) | 1987-10-19 | 1987-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987159839U JPH0163753U (en) | 1987-10-19 | 1987-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0163753U true JPH0163753U (en) | 1989-04-24 |
Family
ID=31441392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987159839U Pending JPH0163753U (en) | 1987-10-19 | 1987-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0163753U (en) |
-
1987
- 1987-10-19 JP JP1987159839U patent/JPH0163753U/ja active Pending