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:
Jan. 23, 2001
Filed:
Jul. 10, 1998
Norbert Legrand, Karlsfeld, DE;
MTU Motoren- und Turbinen-Union Muenchen GmbH, Munich, DE;
Abstract
An armor coating (,) is provided on a surface of a metal engine component (,) that is adapted to be in grazing contact with an abradable bedding-in seal lining provided on a second engine component. The armor coating (,) includes a ceramic layer (,) and has a profiled surface contour including peaks (,) and depressions or grooves (,) therebetween. The grooves (,) serve to receive and carry away abrasion material that is abraded from the bedding-in lining. The profiled surface contour is formed in the surface (,) of the engine component (,) by cold deformation without material removal, and thereafter the ceramic layer (,) is applied thereon preferably by thermal spraying, such that the layer (,) follows and also embodies the profiled surface contour. The cold deformation is carried out by pressing a knurling tool (,) into the original un-profiled surface (,) of the component (,).