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.

Date of Patent:
Sep. 13, 2022

Filed:

Feb. 07, 2020
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventors:

Alexandre Capron, Toronto, BE;

Bernard Chow, Mississauga, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P 15/02 (2006.01); F01D 9/06 (2006.01); F01D 25/24 (2006.01);
U.S. Cl.
CPC ...
F01D 9/06 (2013.01); B23P 15/02 (2013.01); F01D 25/24 (2013.01); F05D 2230/10 (2013.01); F05D 2240/12 (2013.01);
Abstract

A shroud configured to be disposed around an impeller of a centrifugal compressor, the shroud has a wall extending circumferentially around a central axis, the wall having an inner face oriented toward a gaspath and an outer face opposed to the inner face, a bleed slot defined in the wall and extending along at least a portion of a circumference thereof, the bleed slot defining a bleed direction from the inner face and away from the gaspath, the bleed direction at the inner face of the wall being either parallel to the central axis or oriented toward the central axis. A method of manufacturing a shroud is provided.


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