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:
Mar. 24, 2020
Filed:
Aug. 03, 2017
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Yen-Wen Wang, Mississauga, CA;
Nigel Davenport, Hillsburgh, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23D 11/00 (2006.01); F23D 11/38 (2006.01); F23D 11/10 (2006.01); F23R 3/28 (2006.01); F23R 3/12 (2006.01);
U.S. Cl.
CPC ...
F23D 11/383 (2013.01); F23D 11/102 (2013.01); F23D 11/103 (2013.01); F23D 11/107 (2013.01); F23R 3/12 (2013.01); F23R 3/286 (2013.01); F23D 2900/14021 (2013.01);
Abstract
A method of inducing swirl in pressurized air flowing through an air passageway of a fuel nozzle of a gas turbine engine includes inducing swirl in the pressurized air at an exit of the air passageway, by directing the pressurised air through helicoidal grooves formed at a downstream end of the air passageway. The swirling pressurized air exiting the air passageway is then directed into a mixing zone at a downstream end of the fuel nozzle.