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:
Jan. 23, 2018
Filed:
Dec. 23, 2013
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Ignatius Theratil, Mississauga, CA;
Aldo Abate, Longueuil, CA;
Krishna Prasad Balike, Mississauga, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, QC, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 9/00 (2006.01); F04D 29/44 (2006.01); F04D 29/66 (2006.01); F01D 9/02 (2006.01);
U.S. Cl.
CPC ...
F04D 29/441 (2013.01); F01D 9/02 (2013.01); F04D 29/668 (2013.01); Y10T 29/49316 (2015.01);
Abstract
A diffuser pipe for a gas turbine engine comprises a hollow pipe body including a first end, a second end fluidly connected to the first end, and at least one flattened area proximate to the second end. A ring is connected to the second end. The ring is an outlet of the diffuser pipe. At least one stiffener is disposed on the at least one flattened area. The ring and the at least one stiffener reduce vibratory stresses at the second end of the pipe body. A method of manufacturing a diffuser pipe of a gas turbine engine is also presented.