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:
Sep. 10, 2019
Filed:
Sep. 13, 2017
Pratt & Whitney Canada Corp., Longueuil, CA;
Thomas Veitch, Scarborough, CA;
Farid Abrari, Mississauga, CA;
Ernest Adique, Brampton, CA;
Daniel Fudge, Vaughan, CA;
Kari Heikurinen, Oakville, CA;
Paul Stone, Guelph, CA;
Ignatius Theratil, Mississauga, CA;
Peter Townsend, Mississauga, CA;
Tibor Urac, Mississauga, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A rotor for a gas turbine engine comprises a rotor having a hub and blades around the hub, and extending from the hub to tips. The tips include first and second tip portions between their respective tip leading edge and tip trailing edge. Tips are spaced from a rotational axis of the rotor by spans. A mean span of a first tip portion of a first blade is greater than a mean span of a corresponding first tip portion of a second blade. A mean span of a second tip portion the first blade is less than a mean span of a corresponding second tip portion of the second blade.