发明名称 |
Al oder Al-Legierung-Hubventil und Verfahren zu seiner Herstellung |
摘要 |
An Al alloy poppet valve is used in an internal combustion engine. The poppet valve comprises a valve stem and a valve head at the end of the valve stem. The valve head has a tapered valve face, which is engaged on a valve seat when an inlet port is closed by the poppet valve. The valve face has a thermal hardened layer on the surface end an inner alloy layer, thereby increasing mechanical strength to provide high durability and reliability. <IMAGE> |
申请公布号 |
DE69810211(D1) |
申请公布日期 |
2003.01.30 |
申请号 |
DE1998610211 |
申请日期 |
1998.08.04 |
申请人 |
FUJI OOZX INC., FUJISAWA |
发明人 |
MORI, AKIYOSHI;ASANUMA, HIROAKI |
分类号 |
C22C1/02;C22C21/00;C22F1/00;C22F1/04;C23C26/00;F01L3/02;F01L3/04;(IPC1-7):F01L3/02 |
主分类号 |
C22C1/02 |
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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