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:
Jun. 02, 2020
Filed:
Feb. 17, 2017
Pratt & Whitney Canada Corp., Longueuil, CA;
Ignatius Theratil, Mississauga, CA;
Krishna Prasad Balike, Brampton, CA;
Aldo Abate, Longueuil, CA;
Sean Kelly, Milton, CA;
Peter Townsend, Missisauga, CA;
Ronald Dutton, Guelph, CA;
Anthony Brown, Mississauga, CA;
Paul Stone, Guelph, CA;
Myron Klein, Higganum, CT (US);
Milica Kojovic, Longueuil, CA;
Robert Venditti, Longueuil, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A compressor rotor, such as a fan, for a gas turbine engine is described which includes alternating at least first and second blade types. The leading edge of the second blade types includes a leading edge tip cutback extending to the blade tip thereof. The leading edge tip cutback of the second blade type defines a chord length at the blade tip of the second blade types that is less than that of the first blades types. The first and second blade types generate different shock patterns when the fan or compressor rotor operates in supersonic flow regimes.