Method of making a hydrazine fuel injector

Details Method of making a hydrazine fuel injector Method of making a hydrazine fuel injector

1986-02-18

1988-01-05

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29157R, 29558, 29DIG16, 29DIG26, 261DIG39, 219121EK, 2395331, B21D 5300, B23P 1304

Patent

active

047166398

ABSTRACT:
A single-piece thermally isolated multi-point injector for a hydrazine fuel catalytic gas generator having a series of integral feed tubes each with a fuel passage and with the fuel inlet ends thereof spaced apart for ease of manufacture and inspection and associated with a distribution manifold. The feed tubes are arranged in spaced-apart circular arrays to facilitate formation thereof from an investment casting or by radial electrochemical machining cuts. The fuel injector retains the thermal isolation features of a welded or brazed capillary tube injector, but eliminates leakage points encountered in such a structure. The outlet end of each feed tube has a porous member associated therewith to obtain a uniform flow path of hydrazine fuel in all directions onto a catalyst bed.

REFERENCES:
patent: 2350952 (1944-06-01), Acord
patent: 4535518 (1985-08-01), Jaqua
patent: 4559687 (1985-12-01), Tsunoi et al.
patent: 4586226 (1986-05-01), Fakler et al.

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