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. 16, 2021
Filed:
Jul. 13, 2016
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Guy Lefebvre, St-Bruno-de-Montarville, CA;
Remy Synnott, St-Jean-sur-Richelieu, CA;
John Pietrobon, Outremont, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longeueil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/14 (2006.01); F01D 9/06 (2006.01); F01D 25/12 (2006.01); F01D 25/16 (2006.01); F02C 7/18 (2006.01);
U.S. Cl.
CPC ...
F01D 25/14 (2013.01); F01D 9/065 (2013.01); F01D 25/12 (2013.01); F01D 25/125 (2013.01); F01D 25/162 (2013.01); F02C 7/18 (2013.01); F05D 2220/32 (2013.01); F05D 2240/50 (2013.01); F05D 2240/60 (2013.01); F05D 2260/20 (2013.01); F05D 2260/232 (2013.01); F05D 2300/00 (2013.01);
Abstract
A mid-turbine frame module comprises an outer structural ring, an inner structural ring and a plurality of circumferentially spaced-apart spokes structurally interconnecting the inner structural ring to the outer structural ring. At least one of the tubular spokes accommodates a service line. The remaining spokes with no service line have an internal architecture which mimics an air cooling scheme of the at least one spoke housing a service line in order to provide temperature uniformity across all spokes.