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:
Jul. 08, 2003
Filed:
Sep. 18, 2001
Applicant:
Inventors:
Tom Bedwell, Ann Arbor, MI (US);
Miguel Azevedo, Ann Arbor, MI (US);
Assignee:
Federal-Mogul World Wide, Inc., Southfield, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 7/508 ;
U.S. Cl.
CPC ...
F02B 7/508 ;
Abstract
A ferrous cylinder liner for use in diesel engines having exhaust gas recirculation (EGR) is protected from corrosive attack from the EGR environment by first final machining the inner running surface of the liner and thereafter plating the finished inner surface with a thin, non-porous, continuous coating of chromium which serves as a barrier to the EGR gases. The liner is installed and used in its as-coated condition with no post-coating finishing of the coated surface.