PROPULSION SYSTEM WITH ELECTRIC MOTOR Russian patent published in 2008 - IPC B63H1/16 B63H5/14 

FIELD: shipbuilding.

SUBSTANCE: system contains the self-contained body and the electric motor the stator of which is fixed to the body, and the rotor has the circular ring as a whole, from inside. The supplemental identical electric motor is installed with the stator which is fixed to the body, and the rotor has the circular ring as a whole, from inside. The coil of both stators are placed roundabout parallel with the central motor axis. From the stator butts faced to each other, the rotors with the circular rings are installed to the inner surface of which the propeller blades are fixed. The inner diameter of the circular ring is equal to the inner diameter of the stator; each rotor bears the shaft which is simultaneously presents the shaft of the propeller and the said shaft is attached to the legs which are affixed by both sides of the rotor and propeller and fastened to the bearing structure of the body and/or stator. The propellers' bosses are supplied with the shaft bearings.

EFFECT: vibration and noise are reduced; efficiency is increased.

8 cl, 2 dwg