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:
Nov. 13, 2007
Filed:
Nov. 15, 2005
David Leach, Simpsonville, SC (US);
Douglas Frank Beadie, Greer, SC (US);
Tagir Robert Nigmatulin, Greenville, SC (US);
Brittany Dees, Greenville, SC (US);
Jesse E. Trout, Simpsonville, SC (US);
Daniel Waugh, Simpsonville, SC (US);
David Leach, Simpsonville, SC (US);
Douglas Frank Beadie, Greer, SC (US);
Tagir Robert Nigmatulin, Greenville, SC (US);
Brittany Dees, Greenville, SC (US);
Jesse E. Trout, Simpsonville, SC (US);
Daniel Waugh, Simpsonville, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
An active clearance control system is provided that uses compressor extraction air to manipulate blade tip clearance in an industrial gas turbine and compressor. A stream of air is taken from a cooling and sealing air circuit and redirected to be used for active clearance control. The spent clearance control air is re-introduced into the hot gas path of the gas turbine for cooling and sealing purposes.