| 摘要 |
A thrust reversing device shutting-off the gas flow supplied by a turbojet engine and directing it to cascade vane assemblies extended from an engine fairing. An axially movable cylinder is provided with a variable thrust nozzle on its downstream end with recesses containing the reversing cascade vane assemblies. For an increased exhaust area, one or several tapering sections of a nozzle actuating skirt located downstream and generally following the engine fairing contour can be moved into recesses of nozzle flaps pivotable about transverse axes. For the reversing position, the cylinder with the reversing cascade vane assemblies is extended from the engine fairing over the end of the afterburner jet pipe, with the horizontal gas flow path by shut-off simultaneously by flaps of the variable thrust nozzle, which flaps are pivotable about transverse axes and form the divergent inner section of the thrust nozzle when the reversing device is in forward thrust position. |
