Power plants – Reaction motor – Interrelated reaction motors
Patent
1991-02-13
1993-04-20
Jordan, Charles T.
Power plants
Reaction motor
Interrelated reaction motors
602262, 60269, 60280, 181213, 181220, 181225, F02K 302, F01N 114
Patent
active
052031640
ABSTRACT:
A noise suppressor for attachment to the aft end of an existing turbojet engine. The noise suppressor includes a free-running turbofan wheel which includes a turbine section mounted for reaction to the exhaust gas from the jet engine, and a concentric outer fan section extending within an air duct concentric with the turbofan wheel. The jet exhaust from normal operation of the jet engine spins the free-running turbofan wheel, and the fan section of that wheel produces a flow of compressed air through the duct to surround and mix with the jet exhaust, thereby reducing the noise emission of the jet engine. A thrust reverser and an afterburner are optional for use with the noise suppressor.
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