Jet propulsion

Details Jet propulsion Jet propulsion

1973-07-02

1979-02-06

Feinberg, Samuel

Power plants

Reaction motor

Method of operation

60224, F23R 100

Patent

active

041377087

ABSTRACT:
A jet propulsion engine and a method of operating a jet propulsion engine for propulsion of an aircraft over a wide range of speed from zero to supersonic. The engine is a turbofan type with a duct burner and with separate variable exhausts from the duct burner and from the gas turbine engine. The gas turbine core engine includes a gas generator and a low pressure turbine which drives the fan. The fan includes variable outlet guide vanes and the low pressure turbine includes a variable first-stage nozzle. The engine is operated as a normal duct burning by-pass jet engine from zero air speed up to about Mach 3. The fuel to the core engine is shut off through a transition range of speeds. Above this range the engine operates with only the duct burner supplied with fuel, with the gas generator windmilling, and with the low pressure turbine continuing to drive the fan to supercharge the duct burner, which operates as a supercharged ramjet.

REFERENCES:
patent: 3060679 (1962-10-01), Schmitt
patent: 3161018 (1964-12-01), Sandre
patent: 3514952 (1970-06-01), Schumacher et al.

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