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:
Oct. 07, 2025
Filed:
Sep. 28, 2023
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 9/40 (2006.01); F02C 3/22 (2006.01); F02C 3/24 (2006.01); F23K 5/18 (2006.01); F23R 3/36 (2006.01); F02C 7/22 (2006.01); F02C 7/232 (2006.01);
U.S. Cl.
CPC ...
F02C 9/40 (2013.01); F02C 3/22 (2013.01); F02C 3/24 (2013.01); F23K 5/18 (2013.01); F23R 3/36 (2013.01); F02C 7/222 (2013.01); F02C 7/232 (2013.01); F05D 2260/602 (2013.01); F23D 2209/30 (2013.01);
Abstract
A fuel system can include a first fuel circuit, a second fuel circuit, and an inert gas purge system operatively connected to both the first fuel circuit and the second fuel circuit to purge at least a portion of either or both of the first and/or second fuel circuit. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The first fuel circuit can include a first fuel manifold configured to fluidly communicate a first fuel supply with at least one dual fuel nozzles downstream of the first fuel manifold.