Catalytic gas generator

Details Catalytic gas generator Catalytic gas generator

1981-02-20

1982-10-05

Chiesa, Richard L.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

60299, 422180, 422221, F01N 310

Patent

active

043527825

ABSTRACT:
An improved catalytic gas generator, of the type used, for example, in a monopropellant hydrazine rocket engine includes a dynamic catalyst bed retention device. The dynamic retention device comprises a compression band surrounding a generally cylindrical catalyst bed that is axially restrained at both ends. A torsional force is applied to the compression band, which converts the torsional force into a radially inwardly directed compression force. As voids develop in the catalyst bed upon repeated impulsing, the inwardly directed compressive force redistributes the catalyst bed so as to fill the voids. The retention device thus allows the catalyst bed to perform at peak efficiency yielding a gas generator that can be repeatedly pulsed with uniformly reproducible results.

REFERENCES:
patent: 2972227 (1961-02-01), Allen
patent: 3581504 (1971-06-01), Andrus
patent: 3653843 (1972-04-01), Seelander
patent: 4158037 (1979-06-01), Aoyama
patent: 4163042 (1979-07-01), Lynch

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