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:
Feb. 26, 2019
Filed:
Mar. 14, 2017
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Ian A. MacFarlane, St-Bruno-de-Montarville, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, QC, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 27/04 (2006.01); F01D 25/16 (2006.01); F01D 25/18 (2006.01); F16C 19/26 (2006.01);
U.S. Cl.
CPC ...
F01D 25/16 (2013.01); F01D 25/18 (2013.01); F16C 19/26 (2013.01); F16C 27/045 (2013.01); F05D 2220/32 (2013.01); F05D 2240/61 (2013.01); F16C 2360/23 (2013.01);
Abstract
A sleeve is provided for supplying lubricant to an inter-shaft bearing mounted between co-axially mounted inner and outer shafts of a gas turbine engine. The sleeve has a sleeve annular outer surface and a sleeve annular inner surface. At least one lubricant supply connecting member extends from the sleeve outer surface for connection to a lubricant supply. At least one sleeve channel fluidly links the sleeve annular inner surface to the lubricant supply connecting member.