Invention Grant
- Patent Title: Valve drive for an internal combustion engine
- Patent Title (中): 用于内燃机的阀驱动
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Application No.: US12091643Application Date: 2006-11-03
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Publication No.: US08161925B2Publication Date: 2012-04-24
- Inventor: Oliver Schnell , Tim Matthias Hosenfeldt
- Applicant: Oliver Schnell , Tim Matthias Hosenfeldt
- Applicant Address: DE Herzogenaurach
- Assignee: Schaeffler KG
- Current Assignee: Schaeffler KG
- Current Assignee Address: DE Herzogenaurach
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: DE102005053607 20051110
- International Application: PCT/EP2006/068067 WO 20061103
- International Announcement: WO2007/054464 WO 20070518
- Main IPC: F01L1/34
- IPC: F01L1/34

Abstract:
Proposed is a valve drive for an internal combustion engine, having a gas exchange valve (11) and having a valve actuating element (4) which has a contact face (8) for an end face (9) on a valve shank (10) of the gas exchange valve (11) which is actuated in the opening and closing direction by the valve actuating element (4). Here, the contact face (8) and/or the end face (9) should be provided with a wear prevention layer (12) which is composed of at least one metal-free amorphous hydrocarbon layer with sp2 and sp3 hybridized carbon.
Public/Granted literature
- US20090217896A1 VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE Public/Granted day:2009-09-03
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