发明名称 Light weight engine poppet valve
摘要 <p>A lightweight engine poppet valve (10) that has a valve head portion (16) made from a lightweight, heat resistant material is attached to a hollow tube stem portion (12). The attachment is made with a mechanically locking interfitting joint (36) on an extending portion (34) of the valve head (16) at a preselected distance. Preferably, the mechanically locking interfitting joint (36) is a hydroformed joint. <IMAGE></p>
申请公布号 EP1441111(B1) 申请公布日期 2008.07.30
申请号 EP20040000068 申请日期 2004.01.05
申请人 EATON CORPORATION 发明人 CECUR, MAJO;QUERIO, MARCO;SHUBHAYU, SINHAROY;NARASIMHAN, SUNDARAM L.;MASELLO, JOSE F.
分类号 F01L3/02;B21K1/22;B23P15/00;F01L3/04;F01L3/14;F01L3/20 主分类号 F01L3/02
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