LIFT AND PROPULSION UNIT OF AIR-CUSHION TRANSPORT VEHICLE

摘要

A lift and propulsion unit of an air-cushion transport vehicle, with an axial fan installed at the entrance portion of an annular duct and at the exit of said annular duct is disposed a thrust nozzle comprising a reversingand-steering device with independently rotatable rudder blades and reversing vanes installed in the walls of said thrust nozzle after said axial fan. The rudder blades close the exit section of said thrust nozzle during reversal of the thrust and make and obtuse angle with each other whose apex is directed toward said axial fan. The side walls of said reversing-and-steering device are in the form of a polyhedral vaned surface each facet of which is constituted by a cascade of bow-shaped reversing vanes. The invention may be used in the development of air-cushion transport vehicles, self-propelled transport platforms and apparatus in which the translatory motion is effected clue to a reactive thrust provided by the ejected air steam.