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:
Aug. 22, 2023
Filed:
Dec. 07, 2022
Safran Aircraft Engines, Paris, FR;
Office National D'etudes ET DE Recherches Aerospatiales, Palaiseau, FR;
Fernando Gea Aguilera, Moissy-Cramayel, FR;
Raphaël Barrier, Paris, FR;
Mathieu Simon Paul Gruber, Moissy-Cramayel, FR;
Cyril Polacsek, Clamart, FR;
Hélène Dominique Jeanne Posson, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES, Palaiseau, FR;
Abstract
A turbomachine includes a rotor and a stator, the stator having a plurality of profiled structures, each profiled structure being elongated in a direction of elongation in which the profiled structure has a length exposed to an airflow, and having a leading edge and/or a trailing edge, at least one of which is profiled and has, in said direction of elongation, serrations defined by a succession of peaks and troughs and having a geometric pattern transformed, over at least a part of said length exposed to the airflow, by successive scaling, via multiplicative factors, in the direction of elongation and/or transverse to the direction of elongation. The geometric pattern, as defined with reference to a radial distribution of the integral scale of the turbulence, evolves in a non-periodic manner.