公开(公告)号：WO2006014189A3

公开(公告)日：2006-09-08

申请号：PCT/US2005008474

申请日：2005-03-15

Applicant: DECJET INC ,  CORNELL DONALD E ,  FARRELL WILLIAM M

Inventor： CORNELL DONALD E ,  FARRELL WILLIAM M

IPC: B63H11/00

CPC classification number: B63H11/08 ,  B63H11/103 ,  B63H2011/046 ,  B63H2011/081 ,  B63H2011/084 ,  F04D1/063 ,  F04D3/00 ,  F04D29/548 ,  F04D29/566 ,  Y02T70/56

Abstract: A mechanically reconfigurable marine propulsion device (10) that adapts to engine torque and/or vessel speed thereby providing improved propulsive efficiency and performance. The axial flow propulsion device has two or more stages each having an impeller section and a stator section. Stator vanes (40, 42, 44) and/or the pumping chamber (19) provide a flow diffusion that generates increased hydrostatic pressure from ram pressure recovered from high velocity working fluid which, due to reduced fluid velocity and increased hydrostatic pressure, lowers cavitation events and frictional losses within the propulsion device. Optionally, variable-pitch vanes (80, 82) in the stator section control the amount of ram pressure imparted to the working fluid. Also optionally, variable-pitch inlet guide vanes (46) control the whirl angle and/or mass flow rate of incoming fluid independently of rotor or vessel speed. A set of fixed or variable exit guide vanes aft of the pumping chamber provides flow straightening.

Abstract translation: 适用于发动机扭矩和/或容器速度的机械可重构船用推进装置（10），从而提供改进的推进效率和性能。 轴流推进装置具有两个或更多个阶段，每个阶段具有叶轮部分和定子部分。 定子叶片（40,42,44）和/或泵送室（19）提供流动扩散，其从高速工作流体回收的压力压力产生增加的静水压力，由于降低的流体速度和增加的静水压力，降低气蚀 推进装置内的事件和摩擦损失。 可选地，定子部分中的可变节流叶片（80,82）控制施加到工作流体的压头压力的量。 也可选地，可变节距进口导向叶片（46）独立于转子或容器速度来控制进入流体的旋转角和/或质量流量。 泵送室后面的一组固定或可变的出口导向叶片提供流动矫直。