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Marine vessel operating in ice-covered waters

A technology for ships and bows, applied in the direction of hull, hull design, ship construction, etc., can solve complex problems

Inactive Publication Date: 2014-06-04
AKER ARCTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These solutions require complex piping and pumping systems and are themselves considerable energy consumers

Method used

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  • Marine vessel operating in ice-covered waters
  • Marine vessel operating in ice-covered waters
  • Marine vessel operating in ice-covered waters

Examples

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Embodiment Construction

[0036] In the drawings, reference numeral 1 refers to the hull of a sea-going vessel provided with a bulbous bow or similar projection 1a located below the ship's load waterline A and subsequently simply referred to as bulbous bow 1a. This bulbous bow 1a, lying mainly below the waterline A, is provided with a channel system comprising a first channel portion 2 extending through the bulbous bow 1a transversely with respect to the longitudinal axis of the vessel, mainly in the horizontal direction. Bow 1a. The bulbous bow 1a also comprises a second channel portion 3 extending mainly through the bulbous bow 1a from below to above the bulbous bow 1a. Furthermore, the bulbous bow 1a is provided with a propeller 4 or similar, which operates through the action of an electric motor 5 and the shaft 6 driven thereby, which allows the creation of a powerful current which is controlled by each operation of the vessel and as required Guided via any one of the channel sections.

[0037] e...

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Abstract

A marine vessel operating in ice-covered waters, having its hull (1) provided with a bulbous bow (1a) or a corresponding protruding part located at least for the most part below a load waterline (A). The bulbous bow (1a) or the corresponding protruding part is provided with a channel system, comprising a first channel part (2; 2a, 2b; 2') extending in a substantially horizontal direction through the bulbous bow (1a) or the corresponding protruding part transversely relative to a longitudinal axis of the vessel, and a second channel part (3; 3a,3b) extending through the bulbous bow (1a) or the corresponding protruding part at least substantially from below to above the bulbous bow (1a) or the corresponding protruding part. The bulbous bow (1a) or the corresponding protruding part is additionally provided with pump elements, a propeller (4), or the like, which are adapted to generate a powerful flow of water arranged to be directed by way of either one of said channel parts (2; 2a, 2b; 2'; 3, 3a, 3b) as required by each operation and need of the vessel.

Description

technical field [0001] The invention relates to a marine vessel according to the preamble of claim 1 , capable of operating in ice-covered water and whose hull is provided with a bulbous bow or corresponding protrusion at least mostly below the load waterline part. Background technique [0002] When a ship navigates in ice-covered water, it turns out that the ice causes major additional drag. This additional drag is generally considered to be caused by: a) the energy expected to break the ice, b) remove the ice away from the ship's channel, and c) the friction between the hull plating and the ice fragments. Additional drag represents a considerable additional cost in the form of an investment in more robust machinery and increased fuel consumption. The resulting high fuel consumption and emissions are particularly detrimental, since international regulations focus especially on emission reduction. [0003] The added drag caused by navigating through ice can be reduced in ...

Claims

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Application Information

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IPC IPC(8): B63B1/06
CPCB63B1/063Y02T70/126Y02T70/10B63B35/083
Inventor T.马特森R-A.索奥詹恩K.哈姆伯格
Owner AKER ARCTIC TECH
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