Dimensionally stable throat insert for rocket thrusters

Details Dimensionally stable throat insert for rocket thrusters Dimensionally stable throat insert for rocket thrusters

1996-07-29

1998-09-08

Freay, Charles G.

Power plants

Internal combustion engine with treatment or handling of...

Material from exhaust structure fed to engine intake

60257, 2391271, 2393975, F02K 100

Patent

active

058028420

ABSTRACT:
In accordance with the teachings of the present invention, there is disclosed a thruster rocket engine throat insert (12) having a thin walled shell (54) made from a high strength, oxidation resistant material. The shell (54) having a throat (48) of reduced cross-section and a radially extending annular stiffening ring (60) located at the throat (48). A casing (56) made from a material having a thermal conductivity at least 10 times greater than that of shell (54) is molded around an outer surface (58) of shell (54) and has a generally cylindrical exterior surface (59). Shell (54) resists yielding and oxidation caused by the extreme temperatures of rocket fuel combustion products passing through the throat insert (12), while the casing (56) acts to efficiently transfer heat from the shell (54).

REFERENCES:
patent: 3167909 (1965-02-01), Thielman
patent: 3200585 (1965-08-01), Climent et al.
patent: 3354652 (1967-11-01), Novotny et al.
patent: 5417049 (1995-05-01), Sackheim et al.
patent: 5572865 (1996-11-01), Sackheim et al.

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