The present invention provides a coaxial contra-rotating circumferential thruster, comprising an input end (1), a one-way commutator, a two-way deflector, a steering support and two output ends (13, 14). The input end is connected to a power device. The one-way commutator converts one rotation into two rotations having the same rotation speed and opposite rotation directions. The two-way deflector respectively indirectly connects two shafts of a contra-rotating sleeve shaft to two output shafts thereof by means of two bevel gear pairs (5-8). Two unidirectional deflecting torques respectively generated by the two bevel gear pairs have the same magnitude and opposite directions. By transferring by means of a bracket or an output sleeve shaft (12), the two unidirectional deflecting torques cancel each other. The two output ends are respectively connected to two propellers (or rotors). A turnaround control device controls the steering support to be turned around, the control torque required for co-rotating and contra-rotating is the same, the turnaround control torque is small, and the control device is small.
COAXIAL CONTRA-ROTATING CIRCUMFERENTIAL PROPELLER
KOAXIALER GEGENLÄUFIGER ZIRKUMFERENZIELLER PROPELLER
HÉLICE CIRCONFÉRENTIELLE CONTRAROTATIVE COAXIALE
2022-02-16
Patent
Elektronische Ressource
Englisch
Coaxial contra-rotating type propeller pitch-varying device
Europäisches Patentamt | 2015
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