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:
Jun. 25, 2019
Filed:
Feb. 19, 2015
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Tyler J. Selstad, West Hartford, CT (US);
Todd Haugsjaahabink, Springfield, MA (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 9/32 (2006.01); F02C 9/26 (2006.01); G01F 1/34 (2006.01); G01F 13/00 (2006.01);
U.S. Cl.
CPC ...
F02C 9/32 (2013.01); F02C 9/263 (2013.01); G01F 1/34 (2013.01); G01F 13/00 (2013.01); F05D 2220/32 (2013.01); F05D 2260/821 (2013.01);
Abstract
A system and methods of estimating and controlling fuel flow in a gas turbine engine are disclosed. The system and methods include providing a metering valve and a pressure regulating valve. The system and methods further include determining a differential pressure error of the pressure regulating valve based on a metering valve inlet pressure, a discharge pressure, and a bypass fuel flow and determining a metering valve fuel flow based on a metering valve position and the differential pressure error.