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:
Aug. 27, 2019
Filed:
Jan. 17, 2017
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Guy Lefebvre, St-Bruno-de-Montarville, CA;
John Pietrobon, Outremont, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, QC, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/02 (2006.01); F02C 7/36 (2006.01); B64D 35/04 (2006.01); F02C 3/08 (2006.01); F02C 3/113 (2006.01); B64D 27/10 (2006.01); F01D 15/12 (2006.01); F02C 3/10 (2006.01); F02K 3/06 (2006.01); F01D 25/18 (2006.01); F02C 7/32 (2006.01); F16H 57/04 (2010.01); F02C 3/107 (2006.01); F02C 3/14 (2006.01); F02C 6/20 (2006.01);
U.S. Cl.
CPC ...
F02C 7/36 (2013.01); B64D 27/10 (2013.01); B64D 35/04 (2013.01); F01D 5/026 (2013.01); F01D 15/12 (2013.01); F01D 25/18 (2013.01); F02C 3/08 (2013.01); F02C 3/10 (2013.01); F02C 3/107 (2013.01); F02C 3/113 (2013.01); F02C 3/145 (2013.01); F02C 6/206 (2013.01); F02C 7/32 (2013.01); F02K 3/06 (2013.01); F16H 57/0495 (2013.01); F05D 2220/32 (2013.01); F05D 2220/323 (2013.01); F05D 2220/324 (2013.01); F05D 2220/329 (2013.01); F05D 2230/70 (2013.01); F05D 2230/72 (2013.01); F05D 2240/61 (2013.01); F05D 2250/36 (2013.01); F05D 2260/31 (2013.01); F05D 2260/36 (2013.01); F05D 2260/40 (2013.01); F05D 2260/4031 (2013.01); F05D 2260/40311 (2013.01); F05D 2260/98 (2013.01); Y02T 50/671 (2013.01);
Abstract
A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool independently rotatable about a central axis. The LP pressure spool has an LP compressor and an LP turbine. The HP spool has an HP turbine and an HP compressor. An accessory gear box (AGB) is drivingly connected to the HP spool. The LP compressor is disposed axially between the HP compressor and the AGB. A gear train drivingly couples the LP compressor to the LP turbine. The gear train is integrated to the AGB.