Nozzle/valve device for a ducted rocket motor

Details Nozzle/valve device for a ducted rocket motor Nozzle/valve device for a ducted rocket motor

1981-02-12

1984-04-17

Croyle, Carlton R.

Power plants

Reaction motor

Solid and fluid propellant

251138, 251228, 137375, 138 46, F02K 972, F02K 980

Patent

active

044426690

ABSTRACT:
A nozzle/valve device for a ducted rocket motor is provided. The nozzle/valve device employs a design in which a nozzle throat blockage element can be moved by rotational motion into and out of the nozzle throat section of the device. The blockage element is designed so that in the closed position the nozzle throat has a minimum cross-sectional flow area and therefore the nozzle throat is never fully closed. The seals employed in the nozzle/valve device are isolated from contact with reaction products of the gas generator and effective use of minimum amounts of erosion resistant materials is achieved.

REFERENCES:
patent: 2833511 (1958-05-01), Fletcher
patent: 2968919 (1961-01-01), Hughes et al.
patent: 3192709 (1965-07-01), Hardy
patent: 3347496 (1967-10-01), Opfer, Jr.
patent: 3760589 (1973-09-01), Puckett et al.
patent: 3786993 (1974-01-01), Burgess et al.
patent: 3907222 (1975-09-01), McComas
patent: 3914935 (1975-10-01), Burkes, Jr.
patent: 3970253 (1976-07-01), Burkes et al.
patent: 4102498 (1978-07-01), Cherry
patent: 4355663 (1982-10-01), Burkes, Jr. et al.

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