METHOD OF BREAKING ICE COVER AND DEVICE FOR REALIZATION OF THIS METHOD Russian patent published in 2006 - IPC B63B35/08 

FIELD: ice breaking technique; amphibian hovercraft breaking ice cover by resonance method.

SUBSTANCE: prior to starting ice breaking jobs, stress concentrators in form of grooves are made in ice. Grooves are made in form of net similar to net of cracks formed in ice cover behind ship's stern after passage at resonance speed. Device proposed for realization of this method is made in form of frame mounted in aft section of ship; this frame is made from perforated tubes for spraying chemical agents on ice in form of net similar to net of cracks arising in ice cover after passage of ship at resonance speed.

EFFECT: enhanced efficiency of ice breaking.

3 cl, 3 dwg