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:
Mar. 26, 2024
Filed:
May. 30, 2022
Pratt & Whitney Canada Corp., Longueuil, CA;
Ali Azmi, Pickering, CA;
Karan Anand, Mississauga, CA;
Alexandre Capron, Toronto, CA;
Tammy Yam, Richmond Hill, CA;
Sylvain Claude, Saint-Lambert, CA;
Krishna Prasad Balike, Brampton, CA;
Anthony Robert Bruni, Toronto, CA;
Juan Ignacio Ruiz-Gopegui Gonzalez, Alcobendas, ES;
César Carlos Valbuena Merino, Bilbao, ES;
Ignacio Javier Ucin Jarne, Bilbao, ES;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
An aircraft engine, has: an upstream stator having upstream stator vanes circumferentially distributed about a central axis; and a downstream stator having downstream stator vanes circumferentially distributed about the central axis, the downstream stator located downstream of the upstream stator relative to an airflow flowing within a core gaspath of the aircraft engine, a number of the upstream stator vanes being different than a number of the downstream stator vanes, the downstream stator vanes including: a first vane made of a first material, a major portion of a leading edge of the first vane circumferentially overlapped by one of the upstream stator vanes, and a second vane made of a second material having a greater stiffness, strength, and/or ductility than that of the first material, a major portion of a leading edge of the second vane exposed via a spacing defined between two of the upstream stator vanes.