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:
Oct. 04, 2011
Filed:
Jul. 17, 2007
Applicants:
Thierry Argaud, Chartrettes, FR;
Antoine Robert Alain Brunet, Moissy Cramayel, FR;
Jean-christophe Leininger, Paris, FR;
Inventors:
Thierry Argaud, Chartrettes, FR;
Antoine Robert Alain Brunet, Moissy Cramayel, FR;
Jean-Christophe Leininger, Paris, FR;
Assignee:
SNECMA, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
System for cooling a downstream cavity of a centrifugal compressor impeller in a turbomachine, this compressor being connected to a diffuser comprising a downstream annular flange, an annular plating being mounted coaxially around the flange of the diffuser and substantially extending over the entire axial dimension of the flange so as to define an annular ventilation passage fed with air which is cooler than the air exiting the centrifugal compressor.