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. 18, 2011
Filed:
May. 07, 2010
Tagir Nigmatulin, Greenville, SC (US);
Jonathan Carl Thatcher, Liberty, SC (US);
Jesse Edwin Trout, Simpsonville, SC (US);
Roger Clayton Walker, Piedmont, SC (US);
Tagir Nigmatulin, Greenville, SC (US);
Jonathan Carl Thatcher, Liberty, SC (US);
Jesse Edwin Trout, Simpsonville, SC (US);
Roger Clayton Walker, Piedmont, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
Systems and methods for controlling the clearance in a gas turbine are provided. A temperature of a shaft of the gas turbine may be determined, and a desired temperature of an inner turbine shell of the turbine may be determined based upon the temperature of the shaft. The desired temperature of the inner turbine shell may be associated with a turbine clearance at which the gas turbine may be ignited. The temperature of the inner turbine shell may be altered by controlling the temperature of a gas that is circulated within the inner turbine shell, and a determination may be made that the temperature of the inner turbine shell exceeds the desired temperature. The gas turbine may be ignited subsequent to the determination that the temperature of the inner turbine shell exceeds the desired temperature.