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. 28, 2017
Filed:
Oct. 16, 2014
Applicants:
Mahle International Gmbh, Stuttgart, DE;
Oerlikon Trading Ag, Truebbach, Truebbach, CH;
Inventors:
Monika Lehnert, Remseck, DE;
Reinhard Rose, Fellbach, DE;
Juergen Ramm, Maienfeld, CH;
Beno Widrig, Bad Ragaz, CH;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/04 (2006.01); F02F 3/00 (2006.01); C23C 14/02 (2006.01); C23C 14/06 (2006.01); C23C 28/04 (2006.01); C23C 28/00 (2006.01); F02F 3/14 (2006.01); B23P 15/10 (2006.01); F02F 3/10 (2006.01);
U.S. Cl.
CPC ...
F02F 3/0084 (2013.01); B23P 15/10 (2013.01); C23C 14/024 (2013.01); C23C 14/025 (2013.01); C23C 14/0641 (2013.01); C23C 14/0676 (2013.01); C23C 28/042 (2013.01); C23C 28/044 (2013.01); C23C 28/048 (2013.01); C23C 28/322 (2013.01); C23C 28/347 (2013.01); C23C 28/3455 (2013.01); C23C 28/42 (2013.01); F02F 3/10 (2013.01); F02F 3/14 (2013.01); Y10T 29/49249 (2015.01);
Abstract
A steel piston for an internal combustion engine may include a piston crown and a protective layer disposed on the piston crown. The protective layer may include an adhesion layer of Cr or CrN, which is present on a surface of the piston crown. The protective layer may include a functional layer, which is present on the adhesion layer. The functional layer may have at least one of (i) at least one layer (A) of CrN and (ii) at least one layer (B) of CrOn in the form of [(A)/(B)], and a may represent 1 to 100.