Invention Grant
- Patent Title: Piston ring
- Patent Title (中): 活塞环
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Application No.: US3661402DApplication Date: 1970-08-10
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Publication No.: US3661402APublication Date: 1972-05-09
- Inventor: IIZUKA KOUICHI
- Applicant: NIPPON PISTON RING CO LTD
- Assignee: Nippon Piston Ring Co Ltd
- Current Assignee: Nippon Piston Ring Co Ltd
- Priority: JP6420969 1969-08-15
- Main IPC: B23P15/08
- IPC: B23P15/08 ; F16J9/26 ; F16J9/00
Abstract:
A piston ring with a highly wear-resistant sliding surface of tungsten-cobalt electrodeposit and a sliding ring of a sintered mixture of iron oxide and carbon powder.
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