发明名称 |
Poppet valve and method of making it |
摘要 |
A poppet valve (3) comprises a valve stem (1) and a valve head (2) which is made of light metal such as A1 alloy. On a valve face (2a) of the valve head, a hard alloy layer (4) which comprises wear resistance increasing material and the light metal of the valve head is formed to increase wear resistance. <IMAGE> |
申请公布号 |
EP0859131(A1) |
申请公布日期 |
1998.08.19 |
申请号 |
EP19970300976 |
申请日期 |
1997.02.14 |
申请人 |
FUJI OOZX INC. |
发明人 |
MORI, AKIYOSHI;UMINO, SHINICHI |
分类号 |
F01L3/02;F01L3/04 |
主分类号 |
F01L3/02 |
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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