FIELD: engines and pumps.
SUBSTANCE: turboprop comprises the system (24a) of fan vanes (26) with adjustable orientation rigidly coupled with spinning ring (28a). Said ring is centred relative to lengthwise axis (12) and engaged with turbine rotor. Every vane of said system is connected with timing ring (30a) centred along lengthwise axis for adjustment of vane orientation. Besides, it incorporates power cylinder (38) rigidly engaged at revolution with turbine rotor and mechanically connected with timing ring by several coupling levers (40a). Every lever is coupled with power cylinder con-rod (44) and articulated with timing ring so that power cylinder motion caused rotation of timing ring about lengthwise axis. Turboprop with dual screw comprises turbine (20) with two opposite-rotation rotors and two systems of fan vanes (26) of adjustable orientation.
EFFECT: easy and accurate control, decreased weight.
10 cl, 5 dwg
