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:
Jun. 06, 2006
Filed:
Dec. 22, 2003
Applicants:
Ian Macfarlane, St. Bruno, CA;
Zenon Szlanta, Brossard, CA;
Lazar Mitrovic, Longueuil, CA;
Keith Morgan, Westmount, CA;
Inventors:
Ian Macfarlane, St. Bruno, CA;
Zenon Szlanta, Brossard, CA;
Lazar Mitrovic, Longueuil, CA;
Keith Morgan, Westmount, CA;
Assignee:
Pratt & Whitney Canada Corp., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/36 (2006.01); F02C 7/32 (2006.01); F02C 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gas turbine engine having an oil cavity architecture and bearing placement which reduce heat rejection and oil system complexity by enclosing the reduction gearbox bearings and at least the shaft bearings supporting the high pressure shaft in the same oil cavity.