Ice breaking system for floating body

Abstract

The invention relates to an ice-breaking system for floating bodies in or near ice, having a protruding stem and at least two trim tanks ( 10, 16 ) for generating a stamping motion of the floating body, wherein the at least two trim tanks are connected fluidically by means of at least one trim channel ( 12, 13 ) to high-power delivery devices ( 18, 19 ) for the trim medium, and the trim system is designed as a closed loop.

1 - 13 . (canceled) 
     
     
         14 . Floating body or ship body with an ice breaking system, comprising:
 at least one front floating body region or a bow region projecting over a line of a water area on the floating body or ship body;   at least one trimming tank provided respectively in a front floating body region or bow region and in a rear floating body region or ship body region; and   a system for filling the trimming tanks with liquid and emptying the trimming tanks, to increase weight with a filled trimming tank and to reduce the weight with an emptied trimming tank, for producing at least an ice breaking, pitching movement of the front floating body region or bow region,   wherein:   at least one trimming channel connects the front and rear trimming tank to each other in terms of flow,   two trimming channels are provided in a region of opposing floating bodies or ship sides,   trimming tanks and trimming channels are formed as a closed trimming system,   trimming tanks and trimming channels are protected against icing outwardly by cofferdams of the floating body or ship body,   the system for filling and emptying the trimming tanks comprises at least one fluid conveying system which is provided in terms of flow between the trimming tanks, and   front and rear trimming tanks can be filled and emptied in terms of weight in an opposing manner periodically in order to produce an ice breaking, pitching movement.   
     
     
         15 . Floating body or ship body according to  claim 14 , wherein the floating body or ship body is formed with lateral heeling tanks, with at least one pair of opposing lateral heeling tanks or with a plurality of pairs of opposing lateral heeling tanks, which are arranged also for trimming, distributed in a longitudinal direction of the floating body. 
     
     
         16 . Floating body or ship body according to  claim 14 , wherein the closed trimming system comprises water with a high salt content or with additives for reducing a freezing point. 
     
     
         17 . Floating body or ship body according to  claim 14 , wherein a heating system for the trimming tanks and/or trimming channels is provided. 
     
     
         18 . Floating body or ship body according to  claim 14 , wherein projecting side walls are provided in the region of the water line or somewhat above the water line of the floating body or ship body. 
     
     
         19 . Floating body or ship body according to  claim 14 , wherein the fluid conveying system is designed hydro-mechanically, hydraulically, or pneumatically. 
     
     
         20 . Floating body or ship body according to  claim 14 , wherein the front and rear trimming tanks are provided offset as far as possible to a front or rear in the end regions of the floating body or ship body with a greatest possible distance from a keel line of the floating body or ship body. 
     
     
         21 . Floating body or ship body according to  claim 14 , wherein at least one of the front trimming tank and rear trimming tank is provided with sub-divisions and can also be operated as lateral trimming tanks to produce a heeling movement of the floating body or ship body. 
     
     
         22 . Floating body or ship body according to  claim 14 , wherein the fluid conveying system is designed for high conveying rates of the trimming medium, in particular in a range of from about 500 t to about 1000 t in about 10 s to about 30 s. 
     
     
         23 . Floating body or ship body according to  claim 14 , wherein a system for position stabilisation of the floating body or ship body and a direct or indirect drive system for manoeuvring the floating body or ship body in all directions are provided. 
     
     
         24 . Floating body or ship body according to  claim 14 , wherein to the rear an adequately projecting stern post is provided which projects over the water line in order to be able to exert an ice breaking function. 
     
     
         25 . Floating body or ship body according to  claim 14 , wherein the system for position stabilisation of the floating or ship body are designed in order to detect a drift of ice and/or an ocean current, and to control an orientation and counter movement of the floating body or ship body against the drift. 
     
     
         26 . Method for position stabilisation of a floating body or ship with an ice breaking system according to  claim 14 , wherein
 a drift of the ice or the ocean current is determined,   an orientation of the floating body or ship, particularly with its front region, is carried out against a drift direction of the ice or the ocean current,   the ice breaking system of the floating body or ship body is set in operation, and   a dynamic, relative movement of the floating body or ship body is carried out in a magnitude of the drift speed against the drift direction of the ice or the ocean current.   
     
     
         27 . Method according to  claim 26 , wherein the ice breaking system is operated with a frequency which is adapted for efficient ice breaking function to the drift speed of the ice.