The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2019
Filed:
Oct. 31, 2013
Applicants:
Mahle Metal Leve S/a, Jundiai-Sp, BR;
Mahle International Gmbh, Stuttgart, DE;
Inventors:
Rodrigo Favaron, Sao Paulo, BR;
Vinicius Bossoni Do Amaral, Tubingen, DE;
Assignees:
Mahle Metal Leve S/A, , BR;
Mahle International GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 15/00 (2006.01); F01L 3/04 (2006.01); C23C 16/30 (2006.01);
U.S. Cl.
CPC ...
F01L 3/04 (2013.01); C23C 16/30 (2013.01); F01L 2101/00 (2013.01);
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.