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. 14, 2026
Filed:
Sep. 21, 2022
Safran Aircraft Engines, Paris, FR;
Jérôme Claude George Lemonnier, Moissy-Cramayel, FR;
Franck Davy Boisnault, Moissy-Cramayel, FR;
Antoine Bruno Van Noort, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A cooling-air injection casing for cooling a bladed rotor disc of a turbine, in particular a high-pressure turbine, this casing extending around a longitudinal axis (X-X') and being traversed by at least one channel forming an air injector, the channel including an inlet mouth and an outlet mouth. The channel includes a primary section which extends in an axial plane (P) from the inlet mouth to an elbow, and a secondary section which extends from this elbow to the outlet mouth, the secondary section having a progressive variation of its orientation with a tangential component between the elbow and the outlet mouth, in that the channel has a reduction in cross section between the inlet mouth and a neck, and in that the channel has at least one corrugation in its primary section, such that the outlet mouth is situated closer to the longitudinal axis (X-X′) than the inlet mouth.