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:
Jan. 23, 2007
Filed:
Dec. 06, 2004
Zhifeng Dong, Cincinnati, OH (US);
Michael J. Epstein, Mason, OH (US);
Glen William Royal, Cincinnati, OH (US);
Robert J. Albers, Park Hills, KY (US);
Zhifeng Dong, Cincinnati, OH (US);
Michael J. Epstein, Mason, OH (US);
Glen William Royal, Cincinnati, OH (US);
Robert J. Albers, Park Hills, KY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method enables a gas turbine engine to be assembled. The method comprises coupling a rotor assembly including a plurality of circumferentially-spaced rotor blades downstream from, and in flow communication with, a compressor, coupling a casing assembly circumferentially around the rotor assembly such that a clearance is defined between an inner shroud surface of the casing assembly and the rotor blade tips, and coupling a clearance control system to the casing assembly to facilitate maintaining the clearance between the casing assembly and the rotor blade tips, wherein at least a portion of an external surface of the clearance control system is formed with a textured pattern that facilitates increasing the clearance control closure capability during engine operation.