PROPULSION SYSTEM FOR SEA CRAFT AND SEA CRAFT, CONTAINING PROPULSION SYSTEM OF THIS TYPE Russian patent published in 2017 - IPC B63H5/125 B63B35/08 B63H25/42 

FIELD: transportation.

SUBSTANCE: propulsion system for operation in ice and in ice-free waters for the sea craft, which has the body (S) with the diametral line (CL), extending between its nose end (3) and the aftermost end (4). The propulsion system contains the group of thruster propellers (1A-1D), having the turning center (CR) and the maximum lateral distance (R), at which they protrude from the mentioned turning center (CR), and preferably has at least one thruster propeller (1A-1D) with the screw (2), configured to operate in ice. The propulsion system includes at least three rotatable thrusters (1A, 1B, 1G), located near one end (3, 4) of the craft body (S), including at least one pair (1A, 1B) of thrusters, located substantially symmetrically with respect to the indicated diametrical line (CL), on the transverse line (T2) with respect to the indicated diametrical line (CL), at the first distance (Q1) from each other, and at least one rotatable thruster (1G), located closer to the mentioned end (3, 4) and the mentioned diametrical line (CL) at the longitudinal distance (P1) from the indicated transverse line.

EFFECT: increasing of the crafts functional flexibility and improvement of the power reserve for the craft moving and steering, operation safety.

28 cl, 21 dwg