Power plants – Reaction motor – Interrelated reaction motors
Reexamination Certificate
2005-11-29
2010-06-08
Cuff, Michael (Department: 3741)
Power plants
Reaction motor
Interrelated reaction motors
C060S262000, C060S226300
Reexamination Certificate
active
07730714
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.
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Grant Carl
LaChapelle Donald George
Mielke Mark Joseph
Wood Peter John
Zenon Ruby Lasandra
Andes William Scott
Cuff Michael
General Electric Company
Rosen Steven J.
Sung Gerald L
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