Variable angle jet propulsion plant - has pistons in movable nozzle controlled by position of valves in gas line

摘要

The deflector has a moveable central nozzle (2) with a renewable bell mouth (1) having a curved outside surface (31) which fits inside the casing ring (3). The ring houses a number of pistons (51) operating in the cylinders (52) and connected by the rod (53) to the lip of the bell mouth. The cylinder is closed by the spring loaded valve (6). The opening of one valve forces a piston down and angles the nozzle. one of the faces of the piston is subjected to the pressure of the combustion gas and the other face is subjected to a variable pressure controlled by the valve and the exhaust gas pressure.