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. 21, 2021
Filed:
Dec. 17, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Ghislain Plante, Verdun, CA;
Patrick Valois, Longueuil, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 3/14 (2006.01); F04D 25/04 (2006.01); F04D 19/02 (2006.01); F04D 29/053 (2006.01); F04D 27/00 (2006.01); F04D 29/32 (2006.01); F01D 5/06 (2006.01); F01D 15/12 (2006.01); F04D 29/58 (2006.01); F01D 9/02 (2006.01); F02C 7/36 (2006.01); F02C 7/143 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
F04D 25/045 (2013.01); F01D 5/06 (2013.01); F01D 9/02 (2013.01); F01D 15/12 (2013.01); F02C 3/145 (2013.01); F02C 7/143 (2013.01); F02C 7/36 (2013.01); F02K 3/06 (2013.01); F04D 19/02 (2013.01); F04D 27/009 (2013.01); F04D 29/053 (2013.01); F04D 29/321 (2013.01); F04D 29/582 (2013.01); F05D 2220/32 (2013.01); F05D 2230/60 (2013.01); F05D 2240/60 (2013.01); F05D 2260/213 (2013.01); F05D 2260/40311 (2013.01); Y02T 50/60 (2013.01);
Abstract
A reverse flow gas turbine engine has a low pressure (LP) spool and a high pressure (HP) spool arranged sequentially in an axial direction. The LP spool comprises an LP compressor disposed forward of an LP turbine and drivingly connected thereto via an LP compressor gear train. The HP spool comprises an HP compressor in flow communication with the LP compressor, and an HP turbine disposed forward of the HP compressor and drivingly connected thereto via an HP shaft.