发明名称 |
Poppet valve made of titanium alloy |
摘要 |
<p>A poppet valve in an internal combustion engine of a vehicle consists of a valve body which comprises a valve stem and a valve head at one end of the valve stem. An oxidized layer is formed on portions of the valve body which contacts another valve-operating member. On the oxidized layer, a carburized layer is formed to cover the whole surface to increase wear resistance and fatigue strength of the valve.</p> |
申请公布号 |
EP1076112(B1) |
申请公布日期 |
2007.05.30 |
申请号 |
EP19990402427 |
申请日期 |
1999.10.04 |
申请人 |
FUJI OOZX INC. |
发明人 |
TAKANO, YUJI;ASANUMA, HIROAKI;HADA, RYOUSUKE;HIROSE, MASAHITO |
分类号 |
C23C28/00;F01L3/04;C23C8/34 |
主分类号 |
C23C28/00 |
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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