发明名称 |
PISTON ASSEMBLY AND CONNECTING ROD HAVING A PROFILED WRIST PIN BORE THEREFOR |
摘要 |
A piston assembly and connecting rod therefor is provided. The connecting rod has an elongate body extending to an end for operable attachment to a piston. The end has a wrist pin bore extending between opposite sides of the body. The wrist pin bore has a wavy profile extending between the sides. The wavy profile has at least one concave surface with a valley extending along a circumferential direction of the wrist pin bore and convex surfaces having peaks extending along a circumferential direction of the wrist pin bore on laterally opposite sides of the valley. The peaks and valleys cooperate to form a smooth load gradient and uniform lubrication flow across the interface region between the wrist pin bore and the wrist pin extending therethrough.
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申请公布号 |
US2009145394(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20080330932 |
申请日期 |
2008.12.09 |
申请人 |
NIGRO ROBERTO BUENO;WANG KAI |
发明人 |
NIGRO ROBERTO BUENO;WANG KAI |
分类号 |
F02F3/00 |
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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