Abstract:
본 발명의 일 실시예에 따른 선박은 선체(100); 선미(200)의 좌,우측에서 분출구가 후방으로 돌출되도록 형성된 워터젯(600); 상기 좌, 우측 워터젯(600)의 유입구로 유체가 유입될 수 있도록 선저부(300)의 좌, 우측에 형성된 개구부(610); 상기 선저부(200)의 가운데 부분에 형성되어 있고 유체의 마찰저항을 감소시키기 위해 상기 선저부(200)의 횡방향으로 형성된 다수의 요철(410, 420)을 포함하는 유체저항저감부(400); 및 상기 유체저항저감부(400)의 전방에서 기포를 생성하여 상기 유체저항저감부(400)에 공급할 수 있도록 형성된 기포생성부(500)를 포함하고 있다.
Abstract:
The invention relates to a method for reducing marine growth on a vessel, comprising providing an air lubrication system and covering at least a part of the hull with air bubbles. The invention also relates to a vessel having an air lubricating system with releasable connection of the deflectors across the cavity, a closeable outlet valve in the air outlet duct, connection of a compressor to each cavity or pair of cavities and an air inlet opening in the top of the cavity.
Abstract:
A surface (110) to be exposed to liquid flow in a predetermined direction (F) relative to the surface has a plurality of predetermined regions (120) spaced in the predetermined direction, the surface in each region having at least one discontinuity (200) configured to generate, in liquid in the vicinity of that region, a pressure sufficient to initiate cavitation in that liquid.
Abstract:
A boat comprising a hull (10) and a propulsion means (3) suitably coupled to an inboard drive means (8), characterized in that said hull (10) is provided with at least one hollow (2) suitably shaped to at least partially accommodate said propulsion means (3), said hollow (2) being provided with at least one tube (21) and at least one atmospheric-pressure air intake (220) in such a way that the propulsion means, that is a surface propeller (3), can continuously operate under optimal conditions with respect to the thus-generated artificial water surface.
Abstract:
A marine vessel comprising: a command module; first and second buoyant tubular foils; and first and second struts for connecting the first and second buoyant tubular foils to the command module, respectively; wherein the first and second buoyant tubular foils provide substantially all of the buoyancy required for the marine vessel; and wherein the marine vessel further comprises first and second engines enclosed within the first and second buoyant tubular foils, respectively, and first and second propulsion units connected to the first and second engines, respectively, for moving the marine vessel through the water.
Abstract:
An aspect of the invention relates to a surface cover for a body which can be brought into contact with a liquid, comprising: a layer which at least partly contains gas and which is designed and arranged such that at least some sections of a layer face facing the liquid contacts the liquid; a gas-permeable layer which is arranged on the gas-containing layer on a face that faces the body and is opposite the face facing the liquid or which is integrally formed with the gas-containing layer; and a gas-supplying device which is connected to the gas-permeable layer such that gas can flow from the gas-supplying device to the gas-containing layer through the gas-permeable layer. The invention also relates to an arrangement and a use.
Abstract:
기진력 저감형 선박이 개시된다. 본 발명의 일 실시예에 따른 기진력 저감형 선박은, 후미에 프로펠러가 마련되는 선체; 및 프로펠러의 동작 시 프로펠러에 이웃된 선체의 표면에 반사파를 발생시키는 에어 레이어(air layer)를 형성시켜 선체 쪽으로의 기진력을 저감시키는 기진력 저감모듈을 포함하며, 기진력 저감모듈은 선체의 상하 방향을 따라 프로펠러의 회전축심을 통과하는 센터라인을 기준으로 하여 일측으로 치우쳐 배치될 수 있다.