Reaction drive rotor/wing variable area nozzle

Details Reaction drive rotor/wing variable area nozzle Reaction drive rotor/wing variable area nozzle

2006-03-22

2010-11-23

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and helicopter sustained

C244S198000, C239S508000, C239S511000, C239S513000, C416S02000A, C416S023000, C415S082000

Reexamination Certificate

active

07837141

ABSTRACT:
In an exemplary variable area nozzle, a fixed duct section has an inlet and an outlet oriented approximately perpendicular to the inlet. A controllable nozzle member is disposed adjacent the outlet of the fixed duct section. The controllable nozzle member has an area that is adjustable to maintain a substantially constant nozzle pressure ratio. The controllable nozzle member may include first and second flap doors hinged and pivotable in opposite directions between an open position and a closed position and that also may be hinged and pivotable in a same direction so thrust from gas exiting the nozzle is vectorable. When disposed in rotor tips of an aircraft capable of rotary wing flight and fixed wing flight, the variable area nozzle may maintain a substantially constant nozzle pressure ratio near an optimized nozzle pressure ratio as the aircraft transitions from rotary wing flight to fixed wing flight.

REFERENCES:
patent: 1087006 (1914-02-01), Fitzsimons
patent: 2667226 (1954-01-01), Doblhoff
patent: 2940252 (1960-06-01), Reinhart
patent: 3031156 (1962-04-01), Foster
patent: 3045947 (1962-07-01), Bertin et al.
patent: 3128063 (1964-04-01), Kaplan
patent: 3171379 (1965-03-01), Schell, Jr. et al.
patent: 3174709 (1965-03-01), Alderson
patent: 3248878 (1966-05-01), Clark et al.
patent: 3262270 (1966-07-01), Beavers
patent: 3262271 (1966-07-01), Beavers
patent: 3332644 (1967-07-01), Whittley
patent: 3456904 (1969-07-01), Dorand
patent: 3831887 (1974-08-01), Fosness
patent: 3860200 (1975-01-01), Petrushka
patent: 3920203 (1975-11-01), Moorehead
patent: 4301980 (1981-11-01), Bradfield et al.
patent: 4505443 (1985-03-01), Bradfield et al.
patent: 4519543 (1985-05-01), Szuminski et al.
patent: 4550877 (1985-11-01), Szuminski
patent: 4591097 (1986-05-01), Thayer
patent: 4605169 (1986-08-01), Mayers
patent: 4720901 (1988-01-01), Johnson et al.
patent: 4828173 (1989-05-01), Guerty
patent: 4848701 (1989-07-01), Belloso
patent: 4978071 (1990-12-01), MacLean et al.
patent: 4994660 (1991-02-01), Hauer
patent: 5050803 (1991-09-01), Wakeman et al.
patent: 5081835 (1992-01-01), Ewing, Jr.
patent: 5092525 (1992-03-01), Roach et al.
patent: 5454530 (1995-10-01), Rutherford et al.
patent: 5516060 (1996-05-01), McDonnell
patent: 5690280 (1997-11-01), Holowach et al.
patent: 5699966 (1997-12-01), Beverage
patent: 5720453 (1998-02-01), Platt
patent: 5778659 (1998-07-01), Duesler et al.
patent: 5788181 (1998-08-01), Wilson
patent: 5791601 (1998-08-01), Dancila et al.
patent: 5984229 (1999-11-01), Hollowell et al.
patent: 6164563 (2000-12-01), Bouiller et al.
patent: 6260801 (2001-07-01), Peters et al.
patent: 6289670 (2001-09-01), Charier et al.
patent: 6311928 (2001-11-01), Presz et al.
patent: 6629674 (2003-10-01), Saddoughi et al.
patent: 6786040 (2004-09-01), Boehnlein et al.
patent: 6845945 (2005-01-01), Smith
patent: 6938408 (2005-09-01), Lair
patent: 7568348 (2009-08-01), McAllister et al.
patent: 2002/0122717 (2002-09-01), Ghetzler et al.
patent: 2004/0068975 (2004-04-01), Skowronski
patent: 2005/0035215 (2005-02-01), Amaduzzi
patent: 2005/0072876 (2005-04-01), Ducasse

Affiliated with

Also associated with

Rating

Reaction drive rotor/wing variable area nozzle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reaction drive rotor/wing variable area nozzle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reaction drive rotor/wing variable area nozzle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4190388