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:
Jun. 08, 2010
Filed:
Nov. 29, 2005
Peter John Wood, Loveland, OH (US);
Ruby Lasandra Zenon, Sharonville, OH (US);
Donald George Lachapelle, Cincinnati, OH (US);
Mark Joseph Mielke, Blanchester, OH (US);
Carl Grant, Cincinnati, OH (US);
Peter John Wood, Loveland, OH (US);
Ruby Lasandra Zenon, Sharonville, OH (US);
Donald George LaChapelle, Cincinnati, OH (US);
Mark Joseph Mielke, Blanchester, OH (US);
Carl Grant, Cincinnati, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A turbofan gas turbine engine includes a forward fan section with a row of fan rotor blades, a core engine, and a fan bypass duct downstream of the forward fan section and radially outwardly of the core engine. The forward fan section has only a single stage of variable fan guide vanes which are variable fan outlet guide vanes downstream of the forward fan rotor blades. An exemplary embodiment of the engine includes an afterburner downstream of the fan bypass duct between the core engine and an exhaust nozzle. The variable fan outlet guide vanes are operable to pivot from a nominal OGV position at take-off to an open OGV position at a high flight Mach Number which may be in a range of between about 2.5-4+. Struts extend radially across a radially inwardly curved portion of a flowpath of the engine between the forward fan section and the core engine.