发明名称 |
Piston for internal combustion engines |
摘要 |
A piston for an internal combustion engine in which a land located immediately above an oil-ring groove and/or a pressure ring groove of the piston is provided with an annular groove-shaped recess at least around an intermediate portion of the land. The annular groove-shaped recess gradually increases in depth from zero upward along the axial direction of the piston to form an oil reservoir.
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申请公布号 |
US5323744(A) |
申请公布日期 |
1994.06.28 |
申请号 |
US19930028187 |
申请日期 |
1993.03.09 |
申请人 |
KABUSHIKI KAISHA RIKEN |
发明人 |
KUSAMA, KAZUNORI;YOSHIDA, HIDEKI |
分类号 |
F02B1/04;F02F;F02F3/00;F02F3/02;F16J1/08;F16J1/09;(IPC1-7):F02F/ |
主分类号 |
F02B1/04 |
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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