Fluid flow duct with alternative outlets

Details Fluid flow duct with alternative outlets Fluid flow duct with alternative outlets

1992-04-13

1994-03-29

Bertsch, Ricard A.

Power plants

Reaction motor

With thrust direction modifying means

60230, 23926531, F02K 100

Patent

active

052973883

ABSTRACT:
A fluid flow duct such as the jet pipe of an aircraft gas turbine powerplant has alternatively selectable outlets so that thrust may be directed through either an axial discharge nozzle or through vectorable lift nozzles. Side outlets in the jet pipe leads to lift nozzle on port and starboard sides of the aircraft. Nozzle selection is made by means of a composite diverter valve comprising a sleeve valve to cover the side outlets and a segmented blocker valve to close the jet pipe and deflect engine exhaust through the side outlets. The blocker valve segments are carried on the sleeve valve for simultaneous deployment. The segments are adapted to delay the opening of the side outlets as the sleeve valve translates axially. Specially extended segments co-operate with a shaped duct wall adjacent the outlets to delay their uncovering.

REFERENCES:
patent: 4030291 (1977-06-01), Sargisson
patent: 4145877 (1979-03-01), Montgomery
patent: 4731991 (1988-03-01), Newton
patent: 4930307 (1990-06-01), Newton
patent: 5054285 (1991-10-01), Geidel

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