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    • 4. 发明申请
    • Method and device to increase thrust and efficiency of jet engine
    • 提高喷气发动机的推力和效率的方法和装置
    • US20080197212A1
    • 2008-08-21
    • US11890290
    • 2007-08-03
    • Artem P. EfremkinPavel V. Efremkin
    • Artem P. EfremkinPavel V. Efremkin
    • B63H11/103
    • F02K1/28F02K3/02F05D2210/10Y02T70/56
    • A method and device for adding special substances to the gaseous outflow of the jet engine in order to create a “virtual wall” of increased pressure zone behind the jet engine nozzle which can serve as a support for the jet engine gas outflow to push against, thus increasing the thrust power of the jet engine. This increase in acceleration power results in the accelerated movement of the jet engine equipped vehicle or higher fuel efficiency. A device that adds the special substances to the gaseous outflow is proposed. Characteristics of the special substances, which if added into the jet engine gaseous outflow may create a “virtual wall” of increased pressure zone behind the jet engine, are proposed.
    • 一种用于向喷气发动机的气体流出物添加特殊物质的方法和装置,以便在喷气发动机喷嘴后面产生增加的压力区的“虚拟壁”,其可以用作喷气发动机气体流出以推动的支撑, 从而增加喷气发动机的推力。 加速功率的这种增加导致配备喷气发动机的车辆的加速运动或更高的燃料效率。 提出了一种将特殊物质添加到气体流出物的装置。 特殊物质的特征,如果加入到喷气发动机气体流出中,则可能会在喷气发动机后面产生增加压力区的“虚拟壁”。
    • 5. 发明授权
    • Method and apparatus for thrust augmentation for rocket nozzles
    • 火箭喷嘴推力增大的方法和装置
    • US06983587B2
    • 2006-01-10
    • US10282219
    • 2002-10-28
    • James Shumate
    • James Shumate
    • B63H11/00B64G9/00F02K9/00F03H9/00F23R9/00
    • F02K9/97F02K9/82F05D2240/128F05D2240/1281Y02T70/56
    • A method and apparatus for augmenting thrust in a rocket traveling through atmospheric gas. Rocket motor designs are provided where a throat(s) from one or more rocket motors eject high-speed primary exhaust gas in a configuration which peripherally surrounds an outlet for induced, secondary gas. The secondary gas is mixed with the jet of primary exhaust gas to add momentum, and therefore thrust. Either expansion deflection or plug type rocket discharge nozzles can be utilized. In one embodiment, a thrust augmentation of over one hundred percent is achieved. In another embodiment, a plurality of rocket motor assemblies each containing a thrust augmenting rocket motor design is affixed to a rocket body. Such rocket motors enhance rocket thrust performance, and enables more efficient payload to rocket motor selection, or, alternatively, allows higher loads to be carried with the same amount of thrust.
    • 一种用于增加在大气中行驶的火箭的推力的方法和装置。 提供火箭发动机设计,其中来自一个或多个火箭发动机的喉部以周围围绕用于感应的二次气体的出口的构造喷射高速初级废气。 二次气体与一次排气的喷气混合,增加动量,因此推力。 可以使用膨胀偏转或塞子型火箭喷射喷嘴。 在一个实施例中,实现了超过百分之一的推力增加。 在另一个实施例中,每个包含推力增强火箭发动机设计的多个火箭发动机组件固定在火箭体上。 这种火箭发动机提高了火箭推力性能,并且使得能够更有效地进行火箭发动机的选择,或者允许以相同的推力承载更高的负载。
    • 6. 发明申请
    • Variable venturi
    • 可变文丘里
    • US20040121663A1
    • 2004-06-24
    • US10617354
    • 2003-07-11
    • Bhaskar MaratheGilles PesantDusablon Patrice
    • B63H011/00
    • B63H11/10Y02T70/56
    • Variable venturis for use in jet propulsion systems of watercraft include discharge openings with selectively variable discharge areas that enable a venturi controller to selectively maximize top speed, acceleration, and/or fuel efficiency. The variable venturi may include a plurality of circumferentially-spaced, squeezable, flexible sections that selectively move radially inwardly to alter the discharge area. Alternatively, the variable venturi may include a flexible venturi with a variably-shaped flexible discharge opening. Alternatively, the variable venturi may include a main rear discharge opening and a plurality of additional discharge openings with selectively openable valves, whereby selective opening of the valves effectively increases the discharge area. Alternatively, the variable venturi may have a movable end flap that selectively varies the discharge area.
    • 用于船舶喷气式推进系统的可变风口包括具有选择性可变放电区域的排放口,使得文氏管控制器能够选择性地最大化最大速度,加速度和/或燃料效率。 可变文丘里管可以包括多个周向间隔开的可挤压的柔性部分,其选择性地径向向内移动以改变排放区域。 或者,可变文丘里管可以包括具有可变形的柔性排出口的柔性文丘里管。 或者,可变文丘里管可以包括主后排出口和具有可选择打开的阀的多个附加排出口,由此阀的选择性打开有效地增加了排出面积。 或者,可变文丘里管可以具有选择性地改变排放区域的可移动端盖。
    • 9. 发明申请
    • Axial Flow Pump and Marine Propulsion Device
    • 轴流泵和船用推进装置
    • US20070292278A1
    • 2007-12-20
    • US10591025
    • 2005-03-15
    • Donald CornellWilliam Farrell
    • Donald CornellWilliam Farrell
    • B63H11/00F04B1/00F04B49/00
    • F04D15/0022B63H11/08B63H11/103B63H11/11B63H2011/046B63H2011/081B63H2011/084F04D3/00F04D29/566Y02T70/56
    • 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.
    • 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。