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:
Jun. 11, 1985
Filed:
Jan. 05, 1983
Jean G Bouiller, Brunoy, FR;
Jean-Claude L Delonge, Corbeil-Essonnes, FR;
S.N.E.C.M.A., Paris, FR;
Abstract
From an external turbine chamber (17), cooling air passages are formed through coils mounted in ball-and-socket fashion (26) in a cavity portion (21) above the stationary turbine nozzle vanes (16) from which it escapes downstream through holes (29) in the platform (15) of the stationary vanes (16) in the form of jets of air parallel to the flow of the main gas flow to create a cooling film on the leading edge (30) of the shroud (9) of the movable blades (10) of the turbine rotor in order to cool these blade shroud (9). An airtight connection between this supply chamber (17) and the main flow is ensured by a flexible seal (32) formed of elastic blades (33) in sections attached to one end of the downstream flange (14) of the turbine nozzle housing (11) and supported at the other end by the turbine ring (5).