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:
Nov. 10, 2009
Filed:
Apr. 04, 2005
Applicants:
Christelle Foucher, Acigne, FR;
Claude Robert Louis Lejars, Draveil, FR;
Didier Riby, Boissise le Roi, FR;
Inventors:
Christelle Foucher, Acigne, FR;
Claude Robert Louis Lejars, Draveil, FR;
Didier Riby, Boissise le Roi, FR;
Assignee:
Snecma, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a ceramic-based bushing for mounting in a turbomachine casing to provide a smooth bearing for a pivot of a variable-pitch vane. The bushing is constituted by a metal jacket and a ceramic ring secured to the inside wall of said jacket by brazing. The invention also provides a turbomachine compressor having variable-pitch stator vanes with pivots mounted in the casing by means of such bushings.