ROUND-TRIP DEVICE Russian patent published in 2014 - IPC B63B27/10 B66D1/12 B66C23/06 

FIELD: transport.

SUBSTANCE: invention relates to ship equipment particularly, to round-trip devices. Proposed device comprises lifting and rope winches mounted at shift aft and compensation device equipped with round-trip frame. Lifting winch rope two branches run over two pulleys secured to round-trip frame and two equaliser pulleys secured to top section of underwater charging station. With said station at preset depth lifting winch does not operate. Ship rolling is accompanied with rotation of equaliser pulleys. Note here that charging station displays no pitching. Round-trip frame drive with accelerometer and two integration filters to measure acceleration, speed and frame axle displacement make the system for automatic control over frame inclination. With charging station located underwater aforesaid round-trip frame moves in direction opposite the ship displacement caused by pitching. Increased compensator response speed is ensured by additional feedforward control over location, speed and acceleration of round-trip frame attachment axle.

EFFECT: lower costs and higher reliability.

3 dwg