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:
Sep. 30, 2014
Filed:
Dec. 16, 2009
Xavier Jean Yves Alain Agneray, Veneux les Sablons, FR;
Jerome Jean Bert, Paris, FR;
Alexandre Franck Arnaud Chartoire, Paris, FR;
Armel Touyeras, Combs la Ville, FR;
Xavier Jean Yves Alain Agneray, Veneux les Sablons, FR;
Jerome Jean Bert, Paris, FR;
Alexandre Franck Arnaud Chartoire, Paris, FR;
Armel Touyeras, Combs la Ville, FR;
SNECMA, Paris, FR;
Abstract
The invention relates to a compressor for a turbine engine including a casing (), at least one compressor stage consisting of a stationary blade () impeller and a mobile blade () impeller positioned upstream from said stationary blade () impeller, and cavities () made in said casing opposite the through-path of the mobile blades (), said cavities having a length Lmeasured axially and being shifted upstream relative to the blades () so as to generate an overlap with a length L, characterized in that the lengths Land Lare respectively between 35% and 50% and between 80% and 90% of the axial chord Cmeasured at the outer end of the blades (), and in that the cavities () do not in communication with one another.