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发明名称
Piston
摘要
A number of embodiments of a piston may have a shape that provides enhanced piston guidance. In such embodiments, the piston shape may include an axial profile that is configured to provide certain thrust load characteristics.
申请公布号
US7493850(B2)
申请公布日期
2009.02.24
申请号
US20070677714
申请日期
2007.02.22
申请人
DRESSER, INC.
发明人
DONAHUE RICHARD J.
分类号
F16J1/04;F02F3/02
主分类号
F16J1/04
代理机构
代理人
主权项
地址
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