发明授权
- 专利标题: Oil seal ring for rotary piston engines
- 专利标题(中): 旋转活塞式发动机油封圈
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申请号: US799980申请日: 1977-05-24
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公开(公告)号: US4132419A公开(公告)日: 1979-01-02
- 发明人: Teruo Sunami , Tsuyoshi Morishita , Kazumi Hatakeyama
- 申请人: Teruo Sunami , Tsuyoshi Morishita , Kazumi Hatakeyama
- 申请人地址: JPX Aki
- 专利权人: Toyo Kogyo Co., Ltd.
- 当前专利权人: Toyo Kogyo Co., Ltd.
- 当前专利权人地址: JPX Aki
- 优先权: JPX51-64291 19760531
- 主分类号: C22C38/00
- IPC分类号: C22C38/00 ; F01C19/00 ; F01C19/12 ; F16J15/34 ; C22C29/00 ; C22C37/00
摘要:
Oil seal ring comprising a base body and a lip formed thereon. The base body is made of a relatively flexible iron based material such as a cast iron. The lip is made of a mixture of iron-based alloy and one or more carbides by melting and thereafter solidifying the mixture on the body. Composite carbides are produced in the alloy and added carbides are distributed in the metal and the composite carbides in the alloy.
公开/授权文献
- US4636163A Apparatus for forming material into a ball 公开/授权日:1987-01-13
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