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    • 61. 发明申请
    • Debris Removing Impeller Back Vane
    • 碎片清除叶轮后叶
    • US20160138605A1
    • 2016-05-19
    • US14899894
    • 2014-06-23
    • FLOW CONTROL LLC.
    • Jeffrey D. LOPES
    • F04D29/24F04D13/02F04D29/10F04D29/42F04D1/00F04D29/00
    • A pump having an impeller with front and back sides, for rotating on a shaft with the front side nearest an inlet and the back side nearest a motor housing, to provide a main flow of the liquid from the inlet to the outlet and a rear impeller flow of the liquid in an area between the impeller's back side and the motor housing. The back side having a logarithmic spiral-shaped vane to constantly sweep, and expel debris from, the area. The logarithmic spiral-shaped vane defined by an equation: r=eΘ/tan(β), where r and theta (Θ) are the radius and azimuthal angle defined using a polar coordinate system having an origin at a center point of the impeller; and beta (β) is an angle perpendicular to which a force acting on the debris will be oriented relative to a line tangent to a circle centered at the center of the impeller and extending out to the point of contact between the vane and the debris.
    • 一种具有前后叶轮的泵,用于在轴上旋转,其前侧最靠近入口,后侧最靠近马达壳体,以提供液体从入口到出口的主流,以及后叶轮 液体在叶轮背面和马达壳体之间的区域中的流动。 背面具有对数的螺旋状叶片,以不断地扫掠,并从该区域排出碎屑。 由等式:r =eΘ/ tan(&bgr))定义的对数螺旋形叶片,其中r和θ(Θ)是使用在叶轮的中心点处具有原点的极坐标系定义的半径和方位角 ; 和β(&bgr)是垂直于角度的角度,作用在碎屑上的力将相对于以中心于叶轮中心的圆的切线的方向定向并延伸到叶片和碎片之间的接触点 。
    • 62. 发明申请
    • Method and means for detecting motor rotation
    • 用于检测电机旋转的方法和装置
    • US20160099666A1
    • 2016-04-07
    • US14860202
    • 2015-09-21
    • FLOW CONTROL LLC.
    • Jesus ESTRADAAkshaykumar PATEL
    • H02P6/16H02K11/00
    • H02P6/17F04B1/00F04B43/02F04B2203/0203H02K1/17H02K11/215H02P6/16
    • Apparatus features a microcontroller configured to: receive signaling containing information about a measured change of a magnetic field created by a magnetic circuit driving a motor; and determine corresponding signaling containing information about the speed of rotation of the motor, based upon the signaling received. The microcontroller provides control signaling containing information to control the operation of the motor, including where the motor control is used to control the flow of fluids from a pump. A Hall Effect Sensor is used to sense the magnetic flux and provide the signaling in the form of a feedback signal for implementing motor control. The motor housing has a slot, the Hall Effect sensor is mounted external the motor housing over the slot, and a ferromagnetic bridge is arranged over the Hall Effect sensor to close the magnetic circuit and cause more flux to go through the Hall Effect sensor.
    • 装置具有微控制器,其被配置为:接收包含关于由驱动马达的磁路产生的磁场的测量变化的信息的信令; 并基于接收到的信令来确定包含关于电动机的转速的信息的相应信令。 微控制器提供控制信号,其中包含用于控制电动机运行的信息,包括电机控制用于控制来自泵的流体的流动。 霍尔效应传感器用于感测磁通量,并以反馈信号的形式提供信号,以实现电机控制。 电机外壳有一个插槽,霍尔效应传感器安装在电机壳体的外部,并在霍尔效应传感器上方布置一个铁磁桥,以闭合磁路,并使更多的磁通量通过霍尔效应传感器。
    • 65. 发明申请
    • BILGE PUMP ARRANGEMENT HAVING BACK FLOW PREVENTER
    • 带逆流防水装置的双排水装置
    • US20150247504A1
    • 2015-09-03
    • US14193324
    • 2014-02-28
    • Flow Control LLC.
    • Randall H. MOORMANNTodd R. RAABE
    • F04D15/02F16K15/14F04D1/04
    • F04D15/0227F04D1/04F04D15/0022F04D29/4293F16K15/147
    • Apparatus for providing liquid from a reservoir of liquid contained in a vehicle/vessel or other equipment, featuring a pump for pumping liquid having a pump housing outlet nozzle; and a back flow preventer assembly having an inlet end to couple to the outlet nozzle, having an outlet end to couple to an outlet hose for connecting to an outlet exiting a wall of a vehicle, vessel or other equipment, and having a duckbill-type check valve to provide liquid being pumped in one direction from the reservoir of the vehicle, vessel or other equipment to the outlet exiting the wall of the vehicle, vessel or other equipment via the outlet hose, and also configured to prevent residue liquid left in the outlet hose from flowing back into the pump and returning to the reservoir once the pump has completed pumping if the outlet exiting the wall of the vehicle, vessel or other equipment is above the outlet nozzle, so as to prevent on an on/off oscillation of the pump depending on the volume of residue liquid left in the outlet hose.
    • 用于从容纳在车辆/容器或其他设备中的液体容器提供液体的装置,其特征在于用于泵送具有泵壳体出口喷嘴的液体的泵; 以及具有入口端以联接到出口喷嘴的回流防止器组件,其具有出口端以耦合到出口软管,用于连接到离开车辆,容器或其他设备的壁的出口,并且具有鸭嘴型 止回阀,以将从一个方向被泵送的液体从车辆,容器或其他设备的贮存器经由出口软管排出到离开车辆,容器或其他设备的壁的出口,并且还被配置为防止留在 如果离开车辆,船只或其他设备的墙壁的出口在出口喷嘴之上,一旦泵完成抽水,出口软管就会流回到泵中并返回到储存器,以防止开/关振荡 泵取决于出口软管中残留液体的体积。