Multi-hull vessel adapted for ice-breaking

Details Multi-hull vessel adapted for ice-breaking Multi-hull vessel adapted for ice-breaking

B - Operations, Transporting

63

B

B63B 35/08 (2006.01) B63B 1/10 (2006.01)

Patent

CA 2615572

A multi-hulled vessel for upward ice-breaking is disclosed. The vessel has side hulls that are at least partially submerged while the vessel is underway. The side hulls each have a ridge on their upper surface. To break through ice at sea, the side hulls are positioned under the ice and the trim is adjusted for an upward trim angle. As the vessel moves forward, the ice is lifted and force concentrates along the ridge on the side hulls. The ice breaks along this force concentration, aided by the weight of the ice itself.

L~invention concerne un navire multicoque brise-glace. Le navire comporte des coques latérales au moins partiellement immergées lorsqu~il est en mouvement. La surface supérieure des coques latérales comporte une nervure. Pour briser la glace en mer, les coques latérales sont placées sous la glace et l~assiette du navire est réglée de façon à former un angle d~assiette montant. Lorsque le navire avance, la glace se soulève et la force se concentre le long de la nervure des coques latérales. La glace se brise le long de cette force concentrée, la brisure étant facilitée par le poids propre de la glace.

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