Flywheel support system for mobile energy storage
    3.
    发明授权
    Flywheel support system for mobile energy storage 失效
    用于移动储能的飞轮支撑系统

    公开(公告)号:US5559381A

    公开(公告)日:1996-09-24

    申请号:US148361

    申请日:1993-11-08

    摘要: A flywheel support system isolates the flywheel and its motor-generator from the driving environment of an electrically powered motor vehicle. A suitable liquid, placed between the outer and vacuum housings of the flywheel assembly, provides buoyancy and damping to the vacuum housing, cooling of the motor-generator, and serves as one of the barriers to rotor energy and angular momentum transfer in the event of an accident or failure. During normal operation, a shearable mechanical gimbal system keeps the vacuum housing centered in the outer housing, reacts the spin moments generated by the motor-generator, and provides a path for the electrical leads into the vacuum housing. In the event of bearing seizure or rotor failure, the mechanical gimbal will shear and allow the vacuum housing to gradually spin down against the fluid. A system of both active and passive axial and radial magnetic bearings supports the rotating assembly including the rotor of the motor-generator. Rotor-stator gap proximity sensors, strategically placed along the axis, permit a minimum gap to be used in the motor-generator. The placement of the center of gravity of the vacuum housing and its contents below the center of buoyancy produces a vertical orientation of the housing in the absence of accelerations, thus minimizing the power consumed by the magnetic support system when the vehicle is parked.

    摘要翻译: 飞轮支撑系统将飞轮及其电动发电机与电动机动车辆的行驶环境隔离开来。 放置在飞轮组件的外壳和真空壳体之间的合适液体为真空壳体提供浮力和阻尼,电动发电机的冷却,并且作为转子能量和角动量传递的障碍之一,在发生 发生事故或失败。 在正常操作期间,可剪切的机械万向节系统将真空壳体保持在外壳中心,使电动发电机产生的自旋力矩反应,并为电气引线进入真空壳体提供路径。 在轴承卡死或转子故障的情况下,机械万向架将剪切并允许真空壳体逐渐向下旋转流体。 主动和被动轴向和径向磁轴承的系统支撑包括电动发电机转子的旋转组件。 沿轴线策略放置的转子 - 定子间隙接近传感器允许在电动发电机中使用最小间隙。 在没有加速度的情况下,真空壳体的重心及其内容物位于浮力中心的位置产生壳体的垂直取向,从而最小化当车辆停放时由磁性支撑系统消耗的功率。

    Infusion device and driving mechanism and process for same with actuator for multiple infusion uses

    公开(公告)号:US06945760B2

    公开(公告)日:2005-09-20

    申请号:US10925065

    申请日:2004-08-23

    IPC分类号: F04B17/04 H02K41/00

    摘要: A drive mechanism for delivery of infusion medium a coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. An armature is located adjacent the coil, on one side of the axial channel. The armature is moveable toward a forward position, in response to the electromagnetic field produced by activation of the coil. A piston is located within the piston channel and is moveable axially within the channel to a forward position, in response to movement of the armature to its forward position. The armature and piston are moved toward a retracted position, when the coil is not energized. The armature may be configured with a reduced diameter by including a coil cup for supporting the coil including a shelf portion defining at least a portion of a pole surface of the coil cup.

    Electromagnetic valve with permanent magnet armature
    7.
    发明授权
    Electromagnetic valve with permanent magnet armature 失效
    带永磁电枢的电磁阀

    公开(公告)号:US4690371A

    公开(公告)日:1987-09-01

    申请号:US790279

    申请日:1985-10-22

    摘要: A modulating valve is described for controlling the flow of a working fluid through a flow orifice. The valve includes a encapsulated armature having a permanent magnet and a pair of soft iron pole pieces within its interior. The armature is axially movable by the passage of current through one or a dual pair of solenoid coils surrounding the armature. A thin webbed sealing disk is stretched over the end of an armature housing extension and acts to close or modulate flow of working fluid by varying the axial clearance between the disk and a stationary annular seat of the flow orifice. The armature is supported on flexure guide springs that allow armature axial motion when axial magnetic forces are applied to the armature. These axial forces are provided by the interaction of the solenoid coil(s) and the field of the permanent magnet. A magnetic field gradient produced by the permanent magnet allows the coil to apply a force to the armature in either the valve opening or valve closing direction, depending on the coil current polarity. An armature velocity signal is used in a closed loop servo control of valve position to suppress valve oscillation and over shoot when a change in valve position is commanded.

    摘要翻译: 描述了用于控制通过流动孔口的工作流体的流动的调节阀。 该阀包括其内部具有永磁体和一对软铁极片的封装电枢。 电枢可以通过电流通过围绕电枢的一对或双对电磁线圈而轴向移动。 薄的网状密封盘在电枢壳体延伸部的端部被拉伸,并且通过改变圆盘和流动孔口的固定的环形座之间的轴向间隙来作用来闭合或调节工作流体的流动。 电枢被支撑在弯曲导向弹簧上,当轴向磁力施加到电枢时允许电枢轴向运动。 这些轴向力由螺线管线圈与永磁体的磁场相互作用而提供。 由永久磁铁产生的磁场梯度允许线圈根据线圈电流极性在电磁阀或阀门关闭方向上向衔铁施加力。 电枢速度信号用于阀门位置的闭环伺服控制,以便在命令阀位置变化时抑制阀振动和过冲。

    Magnetic levitation system
    8.
    发明授权
    Magnetic levitation system 失效
    磁悬浮系统

    公开(公告)号:US4585282A

    公开(公告)日:1986-04-29

    申请号:US515956

    申请日:1983-07-19

    申请人: Robert W. Bosley

    发明人: Robert W. Bosley

    IPC分类号: F16C39/06

    CPC分类号: F16C32/0451

    摘要: Magnetic levitation apparatus utilizing an arrangement of permanent magnets, one or more electromagnets, position and motion sensors plus electronic circuitry to effectively support the weight of and control the position of a levitated object. Provision is made to minimize the force required from each electromagnet and the levitation system power consumption. Particular damping elements are incorporated in various arrangements of the levitation system to enhance the position and motion control of the levitated object.

    摘要翻译: 磁悬浮装置利用永磁体,一个或多个电磁体,位置和运动传感器以及电子电路的布置,以有效地支撑悬浮物体的位置的重量和控制。 规定了最小化每个电磁铁所需的力和悬浮系统功耗。 特定的阻尼元件被结合在悬浮系统的各种布置中以增强悬浮物体的位置和运动控制。

    Rotary machine with reduced axial thrust loads
    9.
    发明授权
    Rotary machine with reduced axial thrust loads 有权
    具有减小轴向推力载荷的旋转机

    公开(公告)号:US06709243B1

    公开(公告)日:2004-03-23

    申请号:US09696316

    申请日:2000-10-25

    IPC分类号: F04B300

    摘要: A rotary machine includes a helical flow compressor/turbine and a permanent magnet motor/generator including a housing with a stator positioned therein. A shaft is rotatably supported within the housing. A permanent magnet rotor is mounted on a shaft and operatively associated with the stator. An impeller is mounted on the shaft and includes an impeller disk with a plurality of impeller blades extending therefrom. The housing includes a generally horseshoe-shaped fluid flow stator channel with an inlet at a first end and an outlet at a second end. The fluid in the generally horseshoe-shaped fluid flow stator channel proceeds from the inlet to the outlet while following a generally helical flow path with multiple passes through the impeller blades. The impeller disk has a plurality of axially-oriented vent holes formed therethrough to minimize a pressure differential across the impeller, thereby minimizing thrust loads applied to the impeller.

    摘要翻译: 旋转机器包括螺旋流压缩机/涡轮机和包括定子定位在其中的壳体的永磁电动机/发电机。 轴可旋转地支撑在壳体内。 永磁转子安装在轴上并与定子可操作地连接。 叶轮安装在轴上并包括具有从其延伸的多个叶轮叶片的叶轮盘。 壳体包括一般为马蹄形的流体流动定子通道,其具有在第一端处的入口和在第二端处的出口。 通常马蹄形流体流动定子通道中的流体从入口到出口进行,同时沿着大体上螺旋状的流动路径,多次通过叶轮叶片。 叶轮盘具有穿过其形成的多个轴向定向的通气孔,以最小化跨过叶轮的压力差,从而最小化施加到叶轮的推力。

    Liquid fuel pressurization and control method
    10.
    发明授权
    Liquid fuel pressurization and control method 失效
    液体燃料加压和控制方法

    公开(公告)号:US5873235A

    公开(公告)日:1999-02-23

    申请号:US990467

    申请日:1997-12-15

    摘要: A liquid fuel pressurization and control system is disclosed which utilizes either a helical flow pump, or a helical flow pump followed by a gear pump, to pressurize liquid fuel to precisely the pressure level required by a turbogenerator's combustor injectors. This eliminates the need to overpressurize the fuel then regulate the fuel pressure down using a flow control valve or a pressure control valve. The shaft torque and shaft speed of the pump are controlled by the turbogenerator's power controller so as to assure that the turbogenerator's speed is precisely controlled (e.g. within ten (10) rpm out of one hundred thousand (100,000) rpm), and that its turbine exhaust temperature is precisely controlled (e.g. within two (2) degrees Fahrenheit out of twelve hundred (1200) degrees Fahrenheit) over the full range of turbogenerator electrical output power. The system also provides cool, high pressure air to assist atomization of the liquid fuel in the injectors utilizing a variable speed helical flow compressor. The system also adjusts the relative fuel flow through the multiple fuel injectors to aid flame stability at low turbogenerator speeds and low output power levels.

    摘要翻译: 公开了一种液体燃料加压和控制系统,其利用螺旋流泵或螺旋流泵,随后由齿轮泵将液体燃料加压至精确地由涡轮发电机的燃烧器喷射器所需的压力水平。 这消除了对燃料进行过压的需要,然后使用流量控制阀或压力控制阀调节燃料压力。 泵的轴扭矩和轴速度由涡轮发电机的功率控制器控制,以确保涡轮发电机的速度被精确地控制(例如,在十万(10)rpm之内,十万(10万)rpm),并且其涡轮机 在整个涡轮发电机电力输出功率范围内,排气温度被精确控制(例如在华氏二百二十度(华氏二度)二摄氏度以内)。 该系统还提供冷却的高压空气,以利用变速螺旋流压缩机来辅助喷射器中的液体燃料雾化。 该系统还调节通过多个燃料喷射器的相对燃料流量,以帮助在低涡轮发电机速度和低输出功率水平下的火焰稳定性。