发明名称 |
Piston for internal combustion engines |
摘要 |
Piston for internal combustion engines, with an oil scraper ring disposed in an annular groove at the circumference of its head portion. The outer edge of the annular groove adjacent to the piston skirt which adjoins the head portion is bevelled to form a chamfer. In order to ensure the maintenance of an oil film sufficient to prevent dry running of the piston, on the cylinder wall, the width of the chamfer is greater on the thrust side of the piston. The width of the chamfer may decrease essentially continuously from the counter-thrust side to the pressure side.
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申请公布号 |
US4787295(A) |
申请公布日期 |
1988.11.29 |
申请号 |
US19880159660 |
申请日期 |
1988.02.24 |
申请人 |
ALCAN DEUTSCHLAND GMBH |
发明人 |
OBERMEIER-WAGNER, KARL-HEINZ;MARTIN, EDGAR;BOEHM, GERHARD |
分类号 |
F02F3/00;F16J1/08;(IPC1-7):F16J1/00 |
主分类号 |
F02F3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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