Helical flow compressor/turbine permanent magnet motor/generator
    1.
    发明授权
    Helical flow compressor/turbine permanent magnet motor/generator 失效
    螺旋流量压缩机/涡轮永磁电动机/发电机

    公开(公告)号:US5899673A

    公开(公告)日:1999-05-04

    申请号:US730946

    申请日:1996-10-16

    摘要: A helical flow compressor/turbine or pump/turbine with integral permanent magnet motor/generator is disclosed which can be configured as a single stage, two stage or three stage rotary machine. The impeller blades for this machine can be either radial for ease of manufacture or curved, with the curve at the leading edge being greater than at the blade root, for maximum fluid dynamic head pressure and maximum efficiency. Tapered flow channels are utilized to maximize fluid-dynamic efficiency. The helical flow machine disclosed produces precisely controlled pressure changes and energy changes in the process fluid passing through the machine and provides information on fluid flow rates.

    摘要翻译: 公开了一种具有整体永磁电动机/发电机的螺旋流压缩机/涡轮机或泵/涡轮机,其可以被配置为单级,两级或三级旋转机。 用于该机器的叶轮叶片可以是径向的,以便于制造或弯曲,其前缘处的曲线大于叶片根部处的曲线,以获得最大的流体动压头压力和最大效率。 锥形流动通道用于最大化流体动力效率。 所公开的螺旋流动机器在通过机器的过程流体中产生精确控制的压力变化和能量变化,并提供关于流体流速的信息。

    Liquid fuel pressurization and control method
    3.
    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。

    Hydrostatic augmentation of a compliant foil hydrodynamic fluid film
thrust bearing
    4.
    发明授权
    Hydrostatic augmentation of a compliant foil hydrodynamic fluid film thrust bearing 失效
    柔性箔流体动力流体薄膜推力轴承的静水膨胀

    公开(公告)号:US5827040A

    公开(公告)日:1998-10-27

    申请号:US662250

    申请日:1996-06-14

    摘要: A system to hydrostatically augment the thrust load capacity of a bilateral compliant foil hydrodynamic fluid film thrust bearing for a turbomachine is disclosed. A plurality of channels and fixed orifices are provided in the bearing thrust plate to deliver and regulate compressor bleed air flow to the compressor side of the bilateral compliant foil hydrodynamic fluid film thrust bearing which includes additional channels and orifices to direct the bleed air against the bearing rotor thrust disk. After impinging on the rotor thrust disk, the bleed air flow exits the thrust bearing through a plurality of variable orifices comprised of the hydrodynamic thrust bearing elements which are controlled in their flow conductance by the axial position of the rotor thrust disk. The bleed air may then pass through the adjacent journal bearing which functions as a fixed orifice. The interaction of the fixed orifices and variable orifices establishes a pressure differential across and a net force applied to the bearing rotor thrust disk that varies as a function of the axial position of the bearing rotor thrust disk. Further, the bleed air from the bearing rotor thrust disk being delivered to the compliant foil hydrodynamic fluid film journal bearing of the turbomachine serves to cool the journal bearing.

    摘要翻译: 公开了一种用于水轮机增强用于涡轮机的双向柔性箔流体动力流体膜推力轴承的推力承载能力的系统。 在轴承推力板中设有多个通道和固定孔,用于输送和调节压缩机排出空气流到双边柔性箔流体动力流体膜止推轴承的压缩机侧,该推力轴承包括另外的通道和孔口,以将放气引导到轴承 转子推力盘。 在撞击到转子推力盘上之后,排出气流通过多个可变孔口离开推力轴承,该可变孔口由流体动力推力轴承元件组成,这些可变孔口通过转子推力盘的轴向位置被控制在其流动传导中。 然后,排出的空气可以通过作为固定孔的相邻的轴颈轴承。 固定孔和可变孔的相互作用确定了施加到轴承转子推力盘上的压力差和作为轴承转子推力盘的轴向位置变化的净力。 此外,来自轴承转子推力盘的排放空气被输送到涡轮机的柔性箔流体动力流体膜轴颈轴承用于冷却轴颈轴承。

    Thrust load compensating system for a compliant foil hydrodynamic fluid
film thrust bearing
    7.
    发明授权
    Thrust load compensating system for a compliant foil hydrodynamic fluid film thrust bearing 失效
    用于柔性箔流体动力流体膜推力轴承的推力负载补偿系统

    公开(公告)号:US5791868A

    公开(公告)日:1998-08-11

    申请号:US663732

    申请日:1996-06-14

    CPC分类号: F16C17/042 F01D3/04 F16C17/10

    摘要: A thrust load compensating system for a compliant foil hydrodynamic fluid film thrust bearing is disclosed. The system includes an end cap over the free end of a rotary machine shaft, a compliant foil hydrodynamic fluid film journal bearing located at the free end of the shaft, and a source of air whose pressure varies with the square of turbomachine speed. The compliant foil hydrodynamic fluid film journal bearing located at the free end of the shaft serves as a non-contacting rotary shaft seal and, together with the end cap and free end of the shaft forms a thrust piston chamber. The thrust load compensating system of the present invention can be utilized in high speed rotary machines that have a compressor wheel and a turbine wheel that generate large axial aerodynamic forces that increase with speed.

    摘要翻译: 公开了一种用于柔性箔流体动力流体膜止推轴承的推力负载补偿系统。 该系统包括位于旋转机器轴的自由端上的端盖,位于轴的自由端的柔性箔流体动力流体膜轴颈轴承以及其压力随涡轮机速度的平方变化的空气源。 位于轴的自由端的柔性箔流体动力流体膜轴颈轴承用作非接触式旋转轴密封件,并且与端盖和轴的自由端一起形成推力活塞室。 本发明的推力负载补偿系统可用于具有压缩机叶轮和涡轮机叶轮的高速旋转机械中,所述压缩机叶轮和涡轮机叶轮产生大的随着速度增加的轴向空气动力。

    Liquid fuel pressurization and control system
    8.
    发明授权
    Liquid fuel pressurization and control system 失效
    液体燃料加压和控制系统

    公开(公告)号:US5752380A

    公开(公告)日:1998-05-19

    申请号:US730941

    申请日:1996-10-16

    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。