Reaction-drive rotorcraft having an adjustable blade jet

Details Reaction-drive rotorcraft having an adjustable blade jet Reaction-drive rotorcraft having an adjustable blade jet

2005-12-20

2009-11-03

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and fluid sustained

C244S00700B, C244S012100

Reexamination Certificate

active

07611090

ABSTRACT:
Rotorcraft including an airframe having a fuselage extending between a forward and an aft end and a powerplant producing high-pressure fluid. The rotorcraft includes a rotor assembly rotatably mounted on the airframe and having a plurality of rotor blades extending from a hub. Each rotor blade has a base, a tip, a leading edge extending between the base and tip, and a trailing edge extending between the base and tip opposite the leading edge. Each rotor blade has a jet adjacent its trailing edge in fluid communication with the powerplant by way of a fluid path. Each jet is adjustable between an open position in which the jet allows the high-pressure fluid from the power plant to pass through the jet and out of the rotor blade and a closed position in which the jet prevents the high-pressure fluid from passing through the jet and out of the rotor blade.

REFERENCES:
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patent: 3215366 (1965-11-01), Stephens
patent: 3327969 (1967-06-01), Head
patent: 3465988 (1969-09-01), Orr
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patent: 5788181 (1998-08-01), Wilson
patent: 6109565 (2000-08-01), King, Sr.
patent: 6885917 (2005-04-01), Osder et al.
patent: 7412825 (2008-08-01), Muylaert

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