发明名称 |
Piston and cylinder bore having improved scuffing resistance |
摘要 |
A piston assembly is provided for use in an engine. The piston assembly includes a piston body including a crown with a skirt extending from the crown. The skirt has an exterior surface. The exterior surface has a surface finish in a wave form with peaks and valleys, and having a roughness total between approximately 6 and 8 micrometers. The roughness total is defined as the difference between the highest peak and lowest valley within an assessment length. The surface finish has an approximate peak-to-peak distance between 0.18 and 0.23 mm within the assessment length. A composite coating is provided over the exterior surface.
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申请公布号 |
US2004045521(A1) |
申请公布日期 |
2004.03.11 |
申请号 |
US20030630424 |
申请日期 |
2003.07.30 |
申请人 |
WANG YUCONG;BROWN DONALD L. |
发明人 |
WANG YUCONG;BROWN DONALD L. |
分类号 |
F02F1/20;F02F3/00;(IPC1-7):F02F1/00 |
主分类号 |
F02F1/20 |
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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