Invention Grant
- Patent Title: Valve for internal combustion engines
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Application No.: US14439506Application Date: 2013-10-31
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Publication No.: US10215065B2Publication Date: 2019-02-26
- Inventor: Rodrigo Favaron , Vinicius Bossoni Do Amaral
- 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: BR102012028060 20121031
- International Application: PCT/BR2013/000450 WO 20131031
- International Announcement: WO2014/066966 WO 20140508
- Main IPC: B32B15/00
- IPC: B32B15/00 ; F01L3/04 ; C23C16/30

Abstract:
A valve device for an internal combustion engine may include a valve and a metallic tungsten matrix coating containing at least one tungsten nanocarbide disposed on at least a portion of the valve via a chemical vapor deposition (CVD) process. The coating may include a thickness ranging from 5 μm to 150 μm and a hardness between 500 HV and 2000 HV.
Public/Granted literature
- US20150292370A1 VALVE FOR INTERNAL COMBUSTION ENGINES Public/Granted day:2015-10-15
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