JPS604739U - Engine oil rise prevention device - Google Patents
Engine oil rise prevention deviceInfo
- Publication number
- JPS604739U JPS604739U JP9780383U JP9780383U JPS604739U JP S604739 U JPS604739 U JP S604739U JP 9780383 U JP9780383 U JP 9780383U JP 9780383 U JP9780383 U JP 9780383U JP S604739 U JPS604739 U JP S604739U
- Authority
- JP
- Japan
- Prior art keywords
- prevention device
- engine oil
- rise prevention
- oil rise
- pressure
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示すピストンの正面図、第
２図は要部拡大断面図、第３図はクランク角に対する燃
焼室圧力と第２のランド部の空間の圧力変動とを示す曲
線図である。
１・・・・・・シリンダ、１ａ・・・・・・内壁、２−
−−−−−ピストン、３・・・・・・燃焼室、４・・・
・・・第１圧力リング、５・・・・・・第２圧カリング
、６・・・・・・オイルリング、７・・・・・・第１圧
力リング溝、８・・・・・・第２圧力リング溝、９・・
・・・・オイルリング溝、１０・・・・・・第１ランド
部、１１・・・・・・第２ランド部、ｌｌａ・・・・・
・被膜、１２・・・・・・第３ランド部、１５・・・・
・・空間、１６・・・・・・クランク室、１９・・・・
・・空間。Fig. 1 is a front view of a piston showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part, and Fig. 3 shows the combustion chamber pressure and the pressure fluctuation in the space of the second land portion with respect to the crank angle. FIG. 1...Cylinder, 1a...Inner wall, 2-
--- Piston, 3... Combustion chamber, 4...
...First pressure ring, 5...Second pressure culling, 6...Oil ring, 7...First pressure ring groove, 8... Second pressure ring groove, 9...
...Oil ring groove, 10...First land part, 11...Second land part, lla...
・Coating, 12...Third land portion, 15...
...Space, 16...Crank chamber, 19...
··space.
Claims (1)
、ピストンの第１圧カリング溝と第２圧力リング溝間の
第２ランド部の外径を、第１圧力リング溝上側の第１ラ
ンド部の外径および第２圧カリング溝下側の第３ランド
部の外径より大きく設けたことを特徴とするエンジンの
オイル上り防止装置。In an engine in which a piston reciprocates within a cylinder, the outer diameter of the second land between the first pressure culling groove and the second pressure ring groove of the piston is the outer diameter of the first land above the first pressure ring groove. An oil rising prevention device for an engine, characterized in that the outer diameter of the third land portion below the second pressure culling groove is larger than that of the third land portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9780383U JPS604739U (en) | 1983-06-24 | 1983-06-24 | Engine oil rise prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9780383U JPS604739U (en) | 1983-06-24 | 1983-06-24 | Engine oil rise prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS604739U true JPS604739U (en) | 1985-01-14 |
Family
ID=30232482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9780383U Pending JPS604739U (en) | 1983-06-24 | 1983-06-24 | Engine oil rise prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604739U (en) |
-
1983
- 1983-06-24 JP JP9780383U patent/JPS604739U/en active Pending
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