Aeronautics and astronautics – Aircraft power plants
Patent
1982-07-30
1984-10-02
Blix, Trygve M.
Aeronautics and astronautics
Aircraft power plants
244 23B, 244 23D, 244 125, 244 53B, 60230, B64D 2714
Patent
active
044743459
ABSTRACT:
A propulsion system for vertical take off and landing aircraft includes a forward compressor fan (40) and an aft compressor fan (42) downstream of the forward fan and in series flow communication with the forward fan. The forward and aft fans are positioned in a central duct (26). A gas turbine engine (44) is in series flow with the forward and aft fans for driving the fans. The forward fan, aft fan and turbine engine are interconnected by a common shaft (50). A forward diverter structure (100) is positioned downstream of the forward fan and is movable between a first position for diverting exhaust from the forward fan downwardly relative to the longitudinal axis of the aircraft while simultaneously permitting the introduction of air behind the forward diverter structure but ahead of the aft fan and a second position wherein the exhaust from the forward fan is channeled through the aft fan and turbine. An aft diverter (160) is positioned downstream of the aft fan and is movable between a first position wherein the diverter directs exhaust from the aft fan downwardly relative to the longitudinal axis of the aircraft and a second position wherein the exhaust is directed longitudinally from the aircraft.
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Impact of Emission Requirements on V/STOL Propulsion Concept Selection, W. R. Boruff and A. J. Roch, Jr.
Concept Definite and Aerodynamic Technology Studies for Single Engine V/STOL Fighter/Attack Aircraft, W. P. Nelms and D. A. Durston.
New Engine Cycles/Opportunity for Creativity, Walter C. Swan and G. J. Schott.
Blix Trygve M.
Cate James M.
LTV Aerospace and Defence Company
Sadacca S. S.
Shum Ivy M.
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