ICE CUTTER Russian patent published in 2021 - IPC B63B35/08 B63B35/12 

FIELD: shipbuilding.

SUBSTANCE: invention relates to the field of shipbuilding, in particular to icebreaking devices of ships. An icebreaking device (10) is proposed for a vessel (12) that connects to the bows (12a) of the vessel (12) to split the cohesive ice (40) floating on the surface of the water; the icebreaking device (10) includes a central part (14) sliding on one side of the ice (40) and one or more side parts (16) sliding on the opposite side of the ice (40); the central part (14) and the side parts (16) run parallel in the forward direction and interact with each other when splitting the ice (40), preventing its rise; at the same time, the narrow and sharp lower edge of the side parts (16) in contact with the ice (40) creates a splitting line (50) in the ice cover (40), and the central part (14) includes a protruding cam structure (14a) for splitting the ice (40) between the side parts (16).

EFFECT: capability for small floating vehicles to split thick ice and at the same time push it under the ice cover due to the structure that lifts the ice at an angle so that it naturally slides off under its own weight, and thanks to the shape of the icebreaker device: this will provide a passage in which there is practically no ice left.

10 cl, 5 dwg