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:
Dec. 10, 2019
Filed:
Sep. 28, 2016
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Maksim Pankratov, Mississauga, CA;
Ignatius Theratil, Mississauga, CA;
Tony Chang, Toronto, CA;
Nicola Houle, Montreal, CA;
Vincent Savaria, Laval, CA;
Daniel Coutu, Longueuil, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, QC, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/10 (2006.01);
U.S. Cl.
CPC ...
F01D 5/10 (2013.01); F05D 2220/32 (2013.01); F05D 2240/24 (2013.01);
Abstract
The stiffness of a rotor part is varied over its circumference to allow damper rings to effectively work in high speed applications. Circumferentially spaced-apart pockets may be defined in the rotor to create discontinuous strain to increase the force required to lock the damper ring in the groove above the centrifugal force of the ring when the rotor is rotating.