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. 15, 2019
Filed:
Mar. 27, 2015
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, Quebec, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/236 (2006.01); F02C 7/14 (2006.01); F02C 7/224 (2006.01); F28D 21/00 (2006.01); F02C 7/232 (2006.01);
U.S. Cl.
CPC ...
F02C 7/236 (2013.01); F02C 7/14 (2013.01); F02C 7/224 (2013.01); F02C 7/232 (2013.01); F05D 2260/213 (2013.01); F05D 2260/601 (2013.01); F28D 2021/0049 (2013.01); F28F 2250/06 (2013.01); Y02T 50/672 (2013.01);
Abstract
A gas turbine fuel system including a main fuel line providing fuel flow from a fuel tank to a combustor, and at least one pump, including an ejector pump, pumping fuel from the fuel tank to the combustor via a fuel metering unit. The fuel metering unit directs a portion of the fuel into a motive flow line which returns a portion of the fuel to the ejector pump. First and second heat exchangers are disposed in serial flow communication within the main fuel line between the pump and the fuel metering unit. The first heat exchanger is a fuel-to-fuel heat exchanger.