초록 ▼

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 engi

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.

대표청구항 ▼

A propulsion system for vertical and short take-off and landing aircraft comprising: a duct comprising therein, a forward compressor fan, an aft compressor fan controllably in series with the forward fan, a turbine means controllably in flow series with the forward and aft compressor fans, means int

A propulsion system for vertical and short take-off and landing aircraft comprising: a duct comprising therein, a forward compressor fan, an aft compressor fan controllably in series with the forward fan, a turbine means controllably in flow series with the forward and aft compressor fans, means interconnecting the forward compressor fan, aft compressor fan, and turbine means, a gas generator means for driving said turbine means, a first diverter means downstream of said forward fan for selectively diverting exhaust from the forward fan downwardly out of the duct, forward of the center of gravity of the aircraft, and a second diverter means downstream of said aft fan for selectively diverting exhaust from the aft fan downward, aft of the center of gravity of the aircraft, wherein said duct extends along the longitudinal axis of the aircraft and wherein said duct is substantially coaxial with the longitudinal axis of the aircraft.