Power plants – Reaction motor – Interrelated reaction motors
Patent
1978-10-02
1980-07-29
Hart, Douglas
Power plants
Reaction motor
Interrelated reaction motors
60 3933, 60269, F02K 304, F02C 306
Patent
active
042144400
ABSTRACT:
A composite gas turbine engine including a fan, a lift device, a compressor, and a turbine for operating the fan, lift device, and compressor. An inner annular duct leads air from the fan to the compressor and turbine, and an outer annular duct leads air from the fan so that it bypasses the compressor and turbine. A supercharger is located between the fan and compressor and within the inner duct. A drive shaft rotated by the turbine is alternatively coupled either to the fan or to the supercharger and lift device. The supercharger raises air pressure flowing to the compressor to a greater degree than does the fan. The drive shaft is connected to a fan shaft and a supercharger shaft through a gearset, and brakes are provided for arresting the motion of the latter two shafts. A third duct leads from the fan to the inner duct while bypassing the supercharger, and means are provided for optionally guiding air into the third duct when the fan is operating, or to the supercharger when the fan is immobilized. The flow of air to the supercharger is varied according to the speed of the supercharger. Intake of hot exhaust by the compressor and supercharger is prevented.
REFERENCES:
patent: 2737018 (1956-03-01), Bain
patent: 2803943 (1957-08-01), Rainbow
patent: 2981063 (1961-04-01), Wickman
patent: 3381474 (1968-05-01), Gist
patent: 3678690 (1972-07-01), Shohet
patent: 3792586 (1974-02-01), Kasmarik
Hart Douglas
Levine Alan H.
Moteren-Und Turbinen-Union Munchen GmbH
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