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. 20, 2022
Filed:
Apr. 01, 2020
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Gilles Begin, Longueuil, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/28 (2006.01); F01D 25/06 (2006.01); F16F 15/32 (2006.01); F16F 15/34 (2006.01); F04D 29/66 (2006.01); F01M 5/00 (2006.01);
U.S. Cl.
CPC ...
F01D 25/06 (2013.01); F04D 29/668 (2013.01); F16F 15/32 (2013.01); F16F 15/34 (2013.01); F01M 5/002 (2013.01); F01M 2005/004 (2013.01); F05D 2240/20 (2013.01); F05D 2260/96 (2013.01); F16F 2224/02 (2013.01); F16F 2224/025 (2013.01); F16F 2224/0208 (2013.01); F16F 2226/04 (2013.01); F16F 2226/042 (2013.01); F16F 2230/0005 (2013.01); F16F 2232/02 (2013.01);
Abstract
A rotor assembly has a drive shaft and a bladed rotor mounted to the drive shaft for rotation therewith. A dampening material is bonded to the rotor at a location where there is torsional strain energy present. Shear forces in the damping material are used to convert the torsional strain energy into heat energy, thereby providing torsional vibration damping.