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:
Feb. 03, 2026
Filed:
Jul. 28, 2025
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Hien Duong, Mississauga, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/30 (2006.01); F04D 17/10 (2006.01); F04D 29/28 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
F04D 29/30 (2013.01); F04D 17/10 (2013.01); F04D 29/284 (2013.01); F04D 29/4206 (2013.01); F05D 2220/323 (2013.01); F05D 2240/304 (2013.01);
Abstract
An impeller of an aircraft gas turbine engine is provided. The impeller includes a hub, blades and a shroud surrounding the hub and the blades to form a flow path from an inducer portion at an upstream side of the impeller to an exducer portion at an impeller exit. At least one of the blades includes a leading edge and a trailing edge with an exit angle at the impeller exit. The at least one of the blades exhibits an overturning peak and a blade turning angle. The blade turning angle minimizes blade loading and is adjusted rapidly from the overturning peak to the exit angle at the trailing edge.