Invention Grant
- Patent Title: Combination oil ring
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Application No.: US16061123Application Date: 2017-07-24
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Publication No.: US10571024B2Publication Date: 2020-02-25
- Inventor: Kentaro Kawano , Seiji Tamaki
- Applicant: TPR CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TPR CO., LTD.
- Current Assignee: TPR CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Merchant & Gould P.C.
- Priority: WOPCT/JP2017/024712 20170705
- International Application: PCT/JP2017/026699 WO 20170724
- International Announcement: WO2019/008780 WO 20190110
- Main IPC: F16J9/20
- IPC: F16J9/20 ; F16J9/06 ; F16J9/26
Abstract:
Provided is an oil ring. A shape of an outer peripheral surface of an upper segment arranged on an engine combustion chamber side has a symmetrical curved shape. A shape of an outer peripheral surface of a lower segment arranged on a side away from the engine combustion chamber is a symmetrical curved shape.
Public/Granted literature
- US20190360585A1 COMBINATION OIL RING Public/Granted day:2019-11-28
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