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. 06, 2022
Filed:
Sep. 12, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Louis Brillon, Varennes, CA;
Alain Carrieres, Boucherville, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/18 (2006.01); F01D 25/16 (2006.01); B64C 27/12 (2006.01); B64D 35/02 (2006.01); F16C 19/06 (2006.01); F16D 3/06 (2006.01); F16C 25/08 (2006.01); F02C 7/36 (2006.01); F02C 7/06 (2006.01); B64D 35/08 (2006.01);
U.S. Cl.
CPC ...
F01D 25/186 (2013.01); B64D 35/02 (2013.01); F01D 25/164 (2013.01); F01D 25/168 (2013.01); F02C 7/06 (2013.01); F02C 7/36 (2013.01); F16C 19/06 (2013.01); F16C 25/083 (2013.01); F16D 3/06 (2013.01); B64C 27/12 (2013.01); B64D 35/08 (2013.01); F05D 2240/52 (2013.01); F05D 2240/54 (2013.01); F05D 2260/38 (2013.01); F05D 2260/52 (2013.01);
Abstract
A method of operating a gas turbine engine in a multi-engine aircraft, the gas turbine engine having an engine shaft mounted for rotation in a bearing and a gearbox connected to the engine shaft for torque transmission therebetween, includes axially preloading the bearing using an axially biasing element disposed between the gas turbine engine and the gearbox. The axially biasing element reacts against the gearbox to exert an axial preload force on the bearing and the engine shaft of the gas turbine engine.