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    • 3. 发明公开
    • SHIP'S STEM DUCT WITH AIRFOIL SECTION
    • 带翼型部分的船舶干线管道
    • EP0756554A1
    • 1997-02-05
    • EP96925584.0
    • 1996-02-20
    • Petromanolakis, Emmanuel E.
    • Petromanolakis, Emmanuel E.
    • B63B1
    • B63B1/063B63B1/06B63B1/32Y02T70/12Y02T70/126
    • The invention refers to the stem duct (2) of a ship (1) used to achieve the reduction of the ship's propulsion wave height and the improvement in the laminarity of the flow around the ship's bow (3), so that the ship would be able to move with an increased speed and/or with reduced fuel consumption. The duct is mounted on each side of the bow frontal surface and has an airfoil section (6) fitted, arranged in the direction of the flow, with its leading edge at the duct inlet and its trailing edge at the duct outlet. Following mounting of the duct, a passage (7) is created for the flow, between the duct's interior surface, consisting of the convex airfoil surface, and the ship's bow surface (3). The flow passing through the abovementioned passage acquires an increased speed and a reduced pressure, thereby leading to an improved slip of the ship.
    • 本发明涉及船舶(1)的干管(2),其用于实现船舶的推进波浪高度的减小和船首(3)周围的流动的层压的改进,以便船舶 能够以更高的速度和/或降低的燃料消耗来移动。 导管安装在船首前表面的每一侧,并且具有安装在流动方向上的翼型截面(6),其前缘位于导管入口处并且其后缘位于导管出口处。 安装管道后,在管道内表面(包括凸面翼面)和船头表面(3)之间形成通道(7)。 通过上述通道的气流获得增加的速度和减小的压力,从而导致船舶滑动的改善。