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:
Dec. 23, 2025
Filed:
Feb. 23, 2023
Safran Aero Boosters, Herstal, BE;
Rémy Henri Pierre Princivalle, Herstal, BE;
SAFRAN AERO BOOSTERS, Herstal, BE;
Abstract
A stage for a turbomachine compressor including a row of stator vanes extending radially inwards from an outer shell to an inner shell housed in a cavity of the rotor, and an air recirculation passage in the cavity, with an air inlet downstream of the inner shell and an air injection outlet between a face guide and an opposite guiding face upstream of the cavity, having profiles inclined radially downstream, relative to a perpendicular to an axial direction. The air injection outlet has a distance greater than or equal to one fifth of a common length, and the air recirculation passage in the cavity is devoid of a device for sealing upstream of the air inlet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile