ARCTIC LARGE-CAPACITY TRANSPORT VESSEL AND SLEETPROOF PYLON FOR CONNECTION OF VESSEL UNDERWATER HULL TO ITS ABOVE-WATER PART Russian patent published in 2010 - IPC B63G8/04 B63B1/12 B63B25/12 

FIELD: shipbuilding.

SUBSTANCE: invention is related to shipbuilding and refers to development of arctic large-capacity transport vessels. Arctic large-capacity transport vessel has underwater cargo hull and above-water part in the form of main deck with superstructure. Underwater hull is joined with main deck by means of sleetproof pylon, along which cargo waterline passes and which is installed in stern part of underwater hull right behind forepeal symmetrically relative to diametral plate of vessel hull. Upper deck of underwater hull in the pylon area has reinforced structure. Structure of pylon is bearing for the main deck. Underwater hull in its cross section may be arranged in the form of rectangle with rounded angles, height of which makes not more than 10 m, and ratio of height to width is at least 1:6. Underwater hull may have extensible mooring bollards in stern along both sides. Sleetproof pylon for connection of underwater vessel hull to its above-water part is arranged in the form of strong body with transverse and longitudinal framing, having symmetrical oblong or round shape in plan. Width or diametre of pylon is significantly less than width of vessel cargo hull, and also practical width of channel made by icebreaker. Height of pylon provides for motion of vessel main deck above ice, and underwater hull - below lower edge of ice.

EFFECT: invention makes it possible to increase icebreaking capability of vessel; in thick ices as it follows icebreaker in areas of arctic shelf with small depths, and also to reduce resistance to vessel motion in broken ice and to reduce height of vessel underwater hull.

8 cl, 4 dwg