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:
Jan. 30, 2018
Filed:
Mar. 12, 2013
Pratt & Whitney Canada Corp., Longueuil, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
Compressor stators () for gas turbine engines () are disclosed. An exemplary compressor stator () comprises a circumferential array of stator vanes () and a shroud () for supporting the stator vanes (). The shroud () has a circumferentially extending inner endwall () exposed to an annular gas path () of the compressor (). The endwall () has a circumferentially uniform axial cross-sectional profile (). The axial cross-sectional profile () comprises at least one deviation () from a nominal axial cross-sectional profile () defining an overall shape of the annular gas path (). The at least one deviation comprises a concave deviation () and a convex deviation ().