Power plants – Combustion products used as motive fluid – For nominal other than power plant output feature
Reexamination Certificate
2011-06-28
2011-06-28
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
For nominal other than power plant output feature
C060S795000, C060S226100
Reexamination Certificate
active
07966831
ABSTRACT:
An apparatus and method for suppressing dynamic instability in a bleed duct of a gas turbine engine includes a fan bypass duct configured to permit a flow of air through the gas turbine engine. The fan bypass duct defines a fan duct surface, and the bleed duct has an inlet in fluid communication with the fan bypass duct and a flow control valve having an opened position and a closed position. A flow diverter is positioned on the fan duct surface proximate the inlet of the bleed duct and diverts the flow of air from the inlet when the flow control valve is closed, while permitting a portion of the flow of air to enter the inlet when the flow control valve is opened.
REFERENCES:
patent: 3819008 (1974-06-01), Evans et al.
patent: 5092425 (1992-03-01), Shaw, Jr.
patent: 5203163 (1993-04-01), Parsons
patent: 5351473 (1994-10-01), Shuba
patent: 6065932 (2000-05-01), Dodd
patent: 2007/0130912 (2007-06-01), Kraft et al.
patent: 2007/0245738 (2007-10-01), Stretton et al.
patent: 2007/0245739 (2007-10-01), Stretton et al.
patent: 2008/0230651 (2008-09-01), Porte
patent: 2009/0007567 (2009-01-01), Porte et al.
GE Aircraft Engines, “Precooler Fan Bleed Duct,” On sale in USA for more than one year before Aug. 2007.
Hartmann et al., “A New Acoustic Generator. The Air-Jet-Generator,” J. Sci. Instr., vol. 4, 1927, pp. 101-111.
Hamed et al., “Numerical Simulation and Parametric Study of Hartmann-Spenger Tube Based Powered Device,” AIAA-2003-0550, 2003; pp. 1-10.
GE Aircraft Engines, “General Electric CF6-80C2,” Flight International, 1987, single page.
GE Aircraft Engines, “CF6-80C2 Engine Airflow FADEC Control,” On sale and in public use in the USA for more than one year before Aug. 2007, single page.
Bailey William Andrew
Groll William Charles
Kraft Robert Eugene
Cuff Michael
General Electric Company
Trego, Hines & Ladenheim PLLC
Wongwian Phutthiwat
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