RESCUE VEHICLE FOR SHIPS OPERATING IN ICE-COVERED WATERS Russian patent published in 2023 - IPC B62D57/36 B63C7/02 

FIELD: rescue equipment.

SUBSTANCE: screw-propelled vehicle operated in ice-covered waters contains a body in which rooms for passengers and transported cargo are located, as well as a power unit that drives the running screws installed in the bottom part of the body through a transmission. The screws are made with the ability to change the angle of inclination relative to the nose attachment point of the screw shaft axis. In the lower part of the sides of the screw, there are niches in which retractable ballonets are located, the longitudinal edges of which are hermetically fixed, one on the lower edge of the niche, and the other on the lower edge, rotating relative to the upper edge, and flaps that close the niches from the outside when the ballonets are retracted. On the upper part of the screw, additional autonomous and remotely controlled screws are mounted on a rotating telescopic rod, which, when the screw-propelled vehicle exits the water onto the ice surface, are installed in front of the screw-propelled vehicle on the ice surface.

EFFECT: reliable exit of the screw-propelled vehicle from the water to the ice surface is achieved.

1 cl, 4 dwg