Power plants – Reaction motor – Method of operation
Patent
1997-07-08
1999-11-23
Freay, Charles G.
Power plants
Reaction motor
Method of operation
602262, 23926537, 244110B, F02K 302
Patent
active
059878800
ABSTRACT:
A thrust reverser system for a gas turbine engine 10 of the type which includes an outer nacelle 16 spaced apart from a core engine to define an annular bypass duct 32 therebetween and having a fan 22 disposed in an inlet for providing forced air to the bypass duct 32 and core engine. The thrust reverser system includes at least one passageway 40 through the nacelle 16 having a plurality of vanes 42 disposed therein. An internal reverser door 44 is disposed to be movable between a closed position wherein the internal reverser door 44 generally covers the at least one passageway 40 and an open position so as to allow at least a portion of air flow in the bypass duct 32 to pass through the at least one passageway 40. At least one mixer lobe 54 is disposed upstream of the at least one passageway 40. The at least one mixer lobe 54 is rotatable from a first position for mixing air from the bypass duct 32 into a core stream airflow and a second position corresponding with the open position of the internal reverser door 44 for directing air from the bypass duct 32 through the at least one passageway 40 for generating a reverser thrust.
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Freay Charles G.
McDonnell Douglas Corporation
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