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. 27, 2024
Filed:
Sep. 06, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
Hien Duong, Mississauga, CA;
Christopher Chiang, Brampton, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A compressor for an aircraft engine, has: a gaspath extending around a central axis between a radially-inner wall and a radially-outer wall; a rotor having blades circumferentially distributed around the central axis, the blades having airfoils extending from roots to tips along a span and extending from leading edges to trailing edges along a chord, the airfoils extending across the gaspath; grooves defined in an inner face of the radially-outer wall, circumferentially distributed around the central axis, and having groove lengths extending in a first direction having a circumferential component relative to the central axis, the grooves located between the leading edges and the trailing edges of the airfoils; and slots defined in the inner face of the radially-outer wall, circumferentially distributed around the central axis, and having slot lengths extending in a second direction having an axial component relative to the central axis, the slots projecting from the grooves.