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    • 9. 发明申请
    • PROPELLER NOZZLE
    • 螺旋桨喷嘴
    • US20130064652A1
    • 2013-03-14
    • US13613966
    • 2012-09-13
    • Reinhard Schulze
    • Reinhard Schulze
    • F01D25/00
    • F01D25/00B63H5/14
    • A propeller nozzle for watercraft, includes a nozzle and a propeller having at least one propeller blade which can rotate about a propeller axis and which spans a propeller area through rotation about the propeller axis. The propeller blade has a propeller blade end region wherein the propeller is disposed inside the nozzle in such a manner that a circumferential gap in the circumferential direction of the propeller nozzle is formed between the propeller end region and the inner wall of the nozzle. A marginal flow running from a nozzle in the area of the inner wall of the nozzle can flow through the gap, wherein the performance losses which occur due to turbulence of the marginal flow during flow around the propeller blade end region are kept as low as possible. Flow guiding apparatus guides at least one part of the marginal flow onto the propeller area.
    • 用于船舶的螺旋桨喷嘴包括喷嘴和螺旋桨,其具有至少一个能够围绕螺旋桨轴线旋转的螺旋桨叶片,并且通过围绕螺旋桨轴线的旋转跨越螺旋桨区域。 螺旋桨叶片具有螺旋桨叶片端部区域,其中螺旋桨设置在喷嘴内部,使得螺旋桨喷嘴的圆周方向上的周向间隙形成在螺旋桨端部区域和喷嘴的内壁之间。 从喷嘴内壁的喷嘴流出的边际流可以流过间隙,其中由于在围绕螺旋桨叶片端部区域的流动期间边缘流动的紊流而发生的性能损失保持尽可能低 。 流动引导装置将边缘流的至少一部分引导到螺旋桨区域上。