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1. 发明申请

US20070292278A1 Axial Flow Pump and Marine Propulsion Device 审中-公开
标题翻译：轴流泵和船用推进装置
公开(公告)号：US20070292278A1
公开(公告)日：2007-12-20
申请号：US10591025
申请日：2005-03-15
申请人： Donald Cornell , William Farrell
发明人： Donald Cornell , William Farrell
IPC分类号： B63H11/00 , F04B1/00 , F04B49/00
CPC分类号： F04D15/0022 , B63H11/08 , B63H11/103 , B63H11/11 , B63H2011/046 , B63H2011/081 , B63H2011/084 , F04D3/00 , F04D29/566 , Y02T70/56
摘要： A mechanically reconfigurable marine propulsion device 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 and/or the pumping chamber 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 in the stator section control the amount of ram pressure imparted to the working fluid. Also optionally, variable-pitch inlet guide vanes 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 and pressure maintenance at a discharge nozzle. Other options include a dual flow concentric pumping arrangement that improves performance at low to moderate vessel speeds, an inlet diffuser that recovers ram pressure within an intake duct, and/or a variable area throat in the discharge nozzle that controls the water jet exit velocity according to vessel speed in order to maintain propulsive efficiency. Advantageously, the variable geometry propulsion device enables a shipmaster to achieve improved performance and fuel efficiency over a wide range of vessel speed, vessel loading, sea state conditions, power settings, and/or engine set points in order to achieve higher vessel speeds (e.g., 10 to 30 kts) and/or greater range (e.g., 25-40%) over conventional marine pump jets (i.e., centrifugal or mixed-flow waterjets), which is particularly useful for vessels utilizing 10 to 100 megawatt power plants.
摘要翻译：适用于发动机转矩和/或容器速度的机械可重构船用推进装置，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。定子叶片和/或泵送室提供流量扩散，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，降低推进装置内的气蚀事件和摩擦损失。可选地，定子部分中的可变节流叶片控制施加到工作流体的压头压力的量。也可选地，可变间距入口导向叶片独立于转子或容器速度控制进入流体的旋转角度和/或质量流率。泵送室后面的一组固定的或可变的出口导向叶片在排放喷嘴处提供流动矫正和压力维持。其他选择包括双流同心泵送装置，其改善了在低至中等容器速度下的性能，入口扩散器，其恢复进气管道内的压头压力，和/或排放喷嘴中的可变区域喉部，其控制水射流出口速度，以船舶速度，以保持推进效率。有利地，可变几何推进装置使得船主能够在宽范围的船舶速度，船舶装载，海况状态，功率设置和/或发动机设定点上实现改进的性能和燃料效率，以便实现更高的船舶速度（例如，10至30kts）和/或更大的范围（例如，25-40％）超过常规船用泵射流（即离心式或混流式喷水器），这对于使用10至100兆瓦发电厂的船舶特别有用。

2. 发明申请

US20060204384A1 Water cannon 审中-公开
标题翻译：水炮
公开(公告)号：US20060204384A1
公开(公告)日：2006-09-14
申请号：US11217500
申请日：2005-09-02
申请人： Donald Cornell , William Farrell
发明人： Donald Cornell , William Farrell
IPC分类号： F04B17/00
CPC分类号： F04D13/12 , F04D1/06 , F04D3/00
摘要： A water cannon utilizing ultra high pressure to propel a collimated beam of water or other liquid through a nozzle at high speeds at great distances. Ultra high pressure is achieved by multiple serially communicating pumping stations that successively build fluid pressure within respective annular chambers having cross-sectional areas that decrease between the pumping stations as fluid speed increases in the downstream direction. To attain the desired velocity head at the nozzle, a gearbox connected to a prime mover, e.g., a gas turbine engine on-board an ocean vessel, drives multi-stage axial flow pumps at successively increasing speeds commensurate with a volumetric rate of flow. Optionally, the axial flow pumps may include variable stator vanes between rotor blades and/or variable inlet guide vanes at an inlet in order to control flow volume, fluid pressure, engine load, or impact force delivered by the cannon. Further, the collimated beam exiting the cannon may be electrified with a high voltage in order to disable the target's on-board processing or communication equipment. Depending on design criteria, beam size (e.g., three to six inches, more or less), ejection speed, ejection pressure (e.g., 3,000 to 10,000 psi), flow rate (several hundred to several thousand pounds per second), and/or range (e.g., two to five miles) may be adjusted to achieve a desired effect on a target.
摘要翻译：使用超高压的水炮以高速在很远的距离通过喷嘴推动准直的水或其他液体。通过多个串联的泵站实现超高压力，这些泵站在相应的环形腔室内连续地形成流体压力，其中流体速度在下游方向上增加时具有在泵站之间减小的横截面积。为了在喷嘴处获得期望的速度头，连接到原动机（例如船上的燃气涡轮发动机）的变速箱，以与体积流速相应的连续增加的速度驱动多级轴流泵。可选地，轴流泵可以包括位于入口处的转子叶片和/或可变入口导向叶片之间的可变定子叶片，以便控制由大炮输送的流量，流体压力，发动机负载或冲击力。此外，离开加农炮的准直光束可以以高电压通电，以便禁用目标的车载处理或通信设备。根据设计标准，光束尺寸（例如，三到六英寸，或多或少），喷射速度，喷射压力（例如，3,000至10,000psi），流速（几百至几千磅/秒）和/或可以调整范围（例如，两到五英里），以实现对目标的期望效果。

3. 发明申请

US20050142001A1 Axial flow pump or marine propulsion device 失效
标题翻译：轴流泵或船用推进装置
公开(公告)号：US20050142001A1
公开(公告)日：2005-06-30
申请号：US10801705
申请日：2004-03-17
申请人： Donald Cornell
发明人： Donald Cornell
IPC分类号： B63H11/08 , B63H11/103 , B63H11/11 , F04D3/00 , F04D29/56 , F04B49/00 , F04B1/00
CPC分类号： F04D15/0022 , B63H11/08 , B63H11/103 , B63H11/11 , B63H2011/046 , B63H2011/081 , B63H2011/084 , F04D3/00 , F04D29/566 , Y02T70/56
摘要： A multistage axial-flow pumping or marine propulsion device having fixed or variable pitch stators between rotors. Stator vanes are designed to lower internal fluid speed without sacrificing total pressure as working fluid travels toward the discharge nozzle. A variable pitch stator controls the amount of energy, i.e., torque, imparted to the working fluid at successive rotor sections. A variable inlet guide vane provides throttling of mass flow rate independently of rotor speed. An exit guide vane provides flow straightening and pressure maintenance at the discharge nozzle. A variable area throat at the discharge nozzle controls the exit velocity of the water jet according to boat speed and/or desired propulsive efficiency. Advantageously, the device enables a shipmaster to set performance characteristics of a vessel at any desired speed, loading, horsepower setting, or operating characteristic of the power plant.
摘要翻译：在转子之间具有固定或可变节距定子的多级轴流泵送或船用推进装置。定子叶片被设计成当工作流体向排放喷嘴行进时，降低内部流体速度，而不会牺牲总压力。可变间距定子控制在连续的转子部分处施加到工作流体的能量的量，即扭矩。可变入口导向叶片独立于转子速度提供质量流量的节流。出口导向叶片在排放喷嘴处提供流动矫正和压力维持。排放喷嘴处的可变区域喉部根据船速度和/或期望的推进效率来控制水射流的出口速度。有利地，该装置使得船长能够以任何期望的速度，装载，马力设置或发电厂的操作特性来设定船舶的性能特征。

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