Invention Grant
- Patent Title: Piston ring
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Application No.: US15101339Application Date: 2014-12-03
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Publication No.: US09759324B2Publication Date: 2017-09-12
- Inventor: Mauricio Ciminelli Duarte De Souza
- Applicant: Mahle Metal Leve S/A , Mahle International GmbH
- Applicant Address: BR DE
- Assignee: Mahle Metal Leve S/A,Mahle International GmbH
- Current Assignee: Mahle Metal Leve S/A,Mahle International GmbH
- Current Assignee Address: BR DE
- Agency: Fishman Stewart PLLC
- Priority: BR102013031138 20131203
- International Application: PCT/EP2014/076401 WO 20141203
- International Announcement: WO2015/082538 WO 20150611
- Main IPC: F16J9/00
- IPC: F16J9/00 ; F16J9/26
Abstract:
A piston ring for an internal combustion engine may include a metal base and a protective coating disposed on the base to cover at least part of a surface of the base. The coating may be composed of at least one nitride phase formed from at least one metal element and aluminum, and the coating may have an internal stress of less than 1.2 GPa.
Public/Granted literature
- US20160298764A1 PISTON RING Public/Granted day:2016-10-13
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