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:
Nov. 17, 2020
Filed:
Jan. 20, 2017
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Farid Abrari, Mississauga, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/16 (2006.01); F01D 5/04 (2006.01); F04D 29/30 (2006.01); F01D 5/14 (2006.01); F04D 29/28 (2006.01); F04D 29/66 (2006.01); F04D 29/38 (2006.01); B33Y 80/00 (2015.01); F01D 5/18 (2006.01); F04D 29/32 (2006.01);
U.S. Cl.
CPC ...
F01D 5/16 (2013.01); B33Y 80/00 (2014.12); F01D 5/046 (2013.01); F01D 5/048 (2013.01); F01D 5/147 (2013.01); F01D 5/18 (2013.01); F04D 29/284 (2013.01); F04D 29/30 (2013.01); F04D 29/324 (2013.01); F04D 29/666 (2013.01); F04D 29/384 (2013.01); F05D 2230/31 (2013.01); F05D 2230/42 (2013.01); F05D 2240/301 (2013.01); F05D 2250/291 (2013.01); F05D 2260/961 (2013.01); Y02T 50/673 (2013.01); Y02T 50/676 (2013.01);
Abstract
Mistuned bladed rotors and associated manufacturing methods are disclosed. An exemplary method includes forming two or more blades of the bladed rotor where the two or more blades have substantially identical external aerodynamic surfaces and have different internal configurations causing the two or more blades to have different natural frequencies.