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:
Dec. 01, 2009
Filed:
Apr. 14, 2006
Christelle Foucher, Acigne, FR;
Veronique Christiane Giffard, Saint Vrain, FR;
Claude Marcel Mons, Savigny le Temple, FR;
Christelle Foucher, Acigne, FR;
Veronique Christiane Giffard, Saint Vrain, FR;
Claude Marcel Mons, Savigny le Temple, FR;
SNECMA, Paris, FR;
Abstract
The present invention relates to a plain bearing between two parts movable with respect to each other, the first part having a first bearing element made from a first metal and the second part having a second bearing element made from a second metal of higher hardness. The first bearing element has a surface layer hardened by strain hardening. As a result of the invention, the wear between the parts can be reduced and their life can be substantially lengthened. The invention can be advantageously applied to cases in which the first part is a variable-setting diffuser blade and the second part is a gas turbine casing.