Jet propulsion engine and method

Details Jet propulsion engine and method Jet propulsion engine and method

1987-01-27

1989-04-04

Casaregola, Louis J.

Power plants

Reaction motor

Liquid oxidizer

60262, 602701, F02C 310

Patent

active

048173797

ABSTRACT:
An air breathing, jet propulsion engine of either ram jet or turbojet type is provided by an open-ended, elongate, tubular casing having a lead section at one open end thereof and means associated with said section for compressing entering air substantially adiabatically, and having a smaller, open ended, elongate, and perforate tubular member as a combustion chamber positioned concentrically within and along the casing to form therewith a relatively short intermediate section defining a convergent annular entry followed by an annular throat as the sole thrust nozzle and a discharge passage around and along the perforate tubular member providing a discharge section, such passage being wholly and progressively divergent to termination thereof at the opposite open end of the casing as a thrust orifice. A burner provides for combustion of fuel in the combustion chamber, whereby mass flow of gases of combustion through the perforations of the perforate member into the expanding supersonic airstream passing therearound heats such airstream and increases its velocity. The perforate tubular member is preferably equipped for adjustment of the opening size of its perforations and for adjustment of its position longitudinally with respect to the casing.

REFERENCES:
patent: 4036020 (1977-07-01), Bagley
patent: 4051671 (1977-10-01), Brewer
patent: 4063415 (1977-12-01), Rhoades
patent: 4631916 (1986-12-01), LeTanter et al.

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