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:
May. 10, 2011
Filed:
Jul. 19, 2007
Antoine Robert Alain Brunet, Moissy Cramayel, FR;
Jean-christophe Leininger, Paris, FR;
David Locatelli, Gex, FR;
Romain Nicolas Lunel, Brie Comte Robert, FR;
Antoine Robert Alain Brunet, Moissy Cramayel, FR;
Jean-Christophe Leininger, Paris, FR;
David Locatelli, Gex, FR;
Romain Nicolas Lunel, Brie Comte Robert, FR;
SNECMA, Paris, FR;
Abstract
A system for cooling the impeller of a centrifugal compressor in a turbomachine is disclosed. The compressor supplies an annular diffuser. The diffuser includes an end-piece that extends downstream and along the impeller of the compressor and is covered on the upstream side by an annular metal sheet. The sheet delimits, with the impeller of the compressor, a first annular passageway to carry away the air taken from the outlet of the compressor and, with the end-piece of the diffuser, a second annular passageway to carry away a portion of the air flow coming out of the diffuser.