发明名称 |
Piston having diode laser hardened primary compression ring groove and method of making the same |
摘要 |
A piston having a head includes a circumferential compression ring groove having a top surface, a bottom surface and an inset rear wall extending between the top surface and the bottom surface, wherein a confined area of the compression ring groove is hardened.
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申请公布号 |
US2008053384(A1) |
申请公布日期 |
2008.03.06 |
申请号 |
US20070892384 |
申请日期 |
2007.08.22 |
申请人 |
NUVONYX, INC. |
发明人 |
HAAKE JOHN M.;CORGAN KEVIN |
分类号 |
F01C1/07;B23K26/00;C21D1/09 |
主分类号 |
F01C1/07 |
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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