JPS604740U - Engine oil rise prevention device - Google Patents
Engine oil rise prevention deviceInfo
- Publication number
- JPS604740U JPS604740U JP9780483U JP9780483U JPS604740U JP S604740 U JPS604740 U JP S604740U JP 9780483 U JP9780483 U JP 9780483U JP 9780483 U JP9780483 U JP 9780483U JP S604740 U JPS604740 U JP S604740U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- culling
- prevention device
- engine oil
- 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
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
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) [Summary] 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図は要部拡大正面図、第３図は第２図の■−■線に沿
う断面図、第４図は変形例を示す第２圧力リング部分の
拡大断面図、第５図は第４図の第２圧力リングの要部正
面図、第６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圧カリング、５・・・・・・第２圧カリング、４
ａ、 ５ａ・・・・・・合口、６・・・・・・オイル
リング、７・・・・・・第１圧カリング溝、８・・・・
・・第２圧カリング溝、９・・・・・・オイルリング溝
、１１・・・・・・第２のランド部、１２・・・・・・
第３のランド部、１５−−−−−−空間、１７ａ、
１７ｂ、 １８ａ、 １８ｂ−・・・・・通気溝、
１９・・・・・・空間。Fig. 1 is a front view of a piston showing an embodiment of the present invention, Fig. 2 is an enlarged front view of main parts, Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2, and Fig. 4 is a modification. Fig. 5 is a front view of the main part of the second pressure ring shown in Fig. 4, and Fig. 6 shows the pressure in the combustion chamber and the pressure in the space of the second land portion with respect to the crank angle. It is a curve diagram showing fluctuation. 1...Cylinder, 1a...Inner wall, 2
""" Piston, 3... Combustion chamber, 4...
・First pressure culling, 5...Second pressure culling, 4
a, 5a...Abutment, 6...Oil ring, 7...First pressure culling groove, 8...
...Second pressure culling groove, 9...Oil ring groove, 11...Second land portion, 12...
Third land portion, 15------space, 17a,
17b, 18a, 18b-... Ventilation groove,
19... Space.
Claims (1)
、第２圧力リングと第２圧カリング溝との接触面の少な
くとも一方に通気溝を形成し、上記第２圧カリングと第
２圧カリング溝間の隙間面積を第１圧カリングと第１圧
力リング溝間の隙間面積より大きく設定したことを特徴
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 in a cylinder, a ventilation groove is formed in at least one of the contact surfaces between a second pressure ring and a second pressure culling groove, and a gap area between the second pressure culling and the second pressure culling groove is provided. A device for preventing oil from rising in an engine, characterized in that the area is set to be larger than the gap area between the first pressure culling and the first pressure ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9780483U JPS604740U (en) | 1983-06-24 | 1983-06-24 | Engine oil rise prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9780483U JPS604740U (en) | 1983-06-24 | 1983-06-24 | Engine oil rise prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS604740U true JPS604740U (en) | 1985-01-14 |
Family
ID=30232484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9780483U Pending JPS604740U (en) | 1983-06-24 | 1983-06-24 | Engine oil rise prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10605366B2 (en) | 2017-04-14 | 2020-03-31 | Toyota Jidosha Kabushiki Kaisha | Pressure ring |
-
1983
- 1983-06-24 JP JP9780483U patent/JPS604740U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10605366B2 (en) | 2017-04-14 | 2020-03-31 | Toyota Jidosha Kabushiki Kaisha | Pressure ring |
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