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. 26, 2010
Filed:
Oct. 13, 2006
Ching-pang Lee, Cincinnati, OH (US);
Aspi Rustom Wadia, Loveland, OH (US);
David Glenn Cherry, Loveland, OH (US);
Scott Michael Carson, Mason, OH (US);
Ching-Pang Lee, Cincinnati, OH (US);
Aspi Rustom Wadia, Loveland, OH (US);
David Glenn Cherry, Loveland, OH (US);
Scott Michael Carson, Mason, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A gas turbine engine plasma blade tip clearance control system includes an annular shroud surrounding rotatable blade tips and an annular plasma generator spaced radially outwardly and apart from the blade tips. An exemplary embodiment of the annular plasma generator is mounted to the annular shroud and includes radially inner and outer electrodes separated by a dielectric material disposed within an annular groove in a radially inwardly facing surface of the annular shroud. The plasma generator is operable for producing an annular plasma between the annular shroud and blade tips and an effective clearance produced by the annular plasma between the annular shroud and blade tips that is smaller than a clearance between the annular shroud and blade tips.