US 7,549,293 B2
Pressure control method to reduce gas turbine fuel supply pressure requirements
Brian Gallagher, Simpsonville, S.C. (US); Ravi Praveen S Eluripati, Simpsonville, S.C. (US); Jonathan Carl Thatcher, Liberty, S.C. (US); Priscilla Childers, Greenville, S.C. (US); and Bryan Edward Sweet, Valatie, N.Y. (US)
Assigned to General Electric Company, Schenectady, N.Y. (US)
Filed on Feb. 15, 2006, as Appl. No. 11/353,953.
Prior Publication US 2007/0186557 A1, Aug. 16, 2007
Int. Cl. F02C 3/22 (2006.01); F02C 9/26 (2006.01)
U.S. Cl. 60—773  [60/39.281; 60/39.465] 9 Claims
OG exemplary drawing
 
1. A method of determining a fuel pressure reference for supply from a pressure control valve to a gas flow rate control valve of a plurality of fuel nozzles in a gas turbine combustor, comprising:
determining a first required fuel pressure directly upstream of the fuel nozzles;
determining a minimum allowable pressure requirement upstream of the gas flow rate control valve based on said first required fuel pressure; and
determining the fuel pressure reference for control of the pressure control valve based on said minimum allowable pressure requirement.