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. 23, 2021
Filed:
Jul. 02, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Richard Kostka, Bolton, CA;
David Menheere, Norval, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/18 (2006.01); F16H 57/04 (2010.01); F02C 7/32 (2006.01); F02C 7/06 (2006.01); F16H 57/027 (2012.01); B64D 33/00 (2006.01); F16N 39/00 (2006.01); B01D 45/12 (2006.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
F01D 25/18 (2013.01); B01D 45/12 (2013.01); B64D 33/00 (2013.01); F02C 7/06 (2013.01); F02C 7/32 (2013.01); F16H 57/027 (2013.01); F16H 57/0404 (2013.01); F16N 39/002 (2013.01); F05D 2260/608 (2013.01); F05D 2260/609 (2013.01); F05D 2260/98 (2013.01); F16H 2057/02043 (2013.01); F16N 2039/007 (2013.01);
Abstract
The aircraft engine can have an air-oil separator having an air-oil mixture inlet, an oil outlet, an air outlet, and a pressure relief path provided fluidly in parallel with the air-oil separator, between the air-oil mixture inlet and the air outlet, the pressure relief path can have a pressure relief valve for evacuating air-oil mixture to the exhaust duct in the event of excess pressure in the auxiliary gearbox.