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:
Jul. 05, 2011
Filed:
Mar. 29, 2007
Alexandre Nicolas Dervaux, Paris, FR;
Philippe Hazevis, Vaudoy en Brie, FR;
Renaud Martet, Palaiseau, FR;
Philippe Jean-pierre Pabion, Vaux le Penil, FR;
Stephanie Roger, Mormant, FR;
Eric Schwartz, Seine Port, FR;
Alexandre Nicolas Dervaux, Paris, FR;
Philippe Hazevis, Vaudoy en Brie, FR;
Renaud Martet, Palaiseau, FR;
Philippe Jean-Pierre Pabion, Vaux le Penil, FR;
Stephanie Roger, Mormant, FR;
Eric Schwartz, Seine Port, FR;
SNECMA, Paris, FR;
Abstract
A device for cooling a turbine casing in a turbomachine including a turbine is disclosed. The turbine includes several stages, at least one of the stages includes a nozzle assembly formed of an annular row of fixed vanes and an impeller mounted to rotate in a cylindrical shroud formed of ring sectors fixed to the casing, a cooling circuit including ducts carrying cooling air into cavities formed in the vanes of the nozzle assembly, and an air-carrying arrangement which carries air to casing upstream hooks for suspending the ring sectors.