FIELD: engines and pumps.
SUBSTANCE: invention relates to turboprops. Proposed engine comprises at least one set of variable-pitch fan vanes (26) driven by rotary ring (28b) centred along lengthwise axis (12) and mechanically connected with turbine rotor. Every vane of said set is connected to timing ring (30) for pitch adjustment purposes. Besides, this device comprises extra disc (44) fitted via rotary joint to link of actuator (38) secured to fixed structural element of turboprop. Said disc (44) is mechanically connected to timing ring via multiple connection levers (46) articulated with said disc and connected with timing ring so that disc lengthwise displacement forced by the drive makes timing ring turn about lengthwise axis.
EFFECT: ruled out application of hydraulic system.
11 cl, 6 dwg
