Multiple speed pump electronic control system
    1.
    发明授权
    Multiple speed pump electronic control system 失效
    多速泵电控系统

    公开(公告)号:US4686439A

    公开(公告)日:1987-08-11

    申请号:US774512

    申请日:1985-09-10

    IPC分类号: F04B49/06 G05D16/20 G05B5/00

    摘要: An electronic control system for a multiple speed fluid pump and motor. A parameter of the motor, the pump, or the fluid which is expelled from the pump is measured by a sensor. When a predetermined value of the parameter is reached, the sensor provides a trip signal to a timer circuit. The timer circuit provides a drive signal to a switch while the trip signal is present and for a specified period of time after the trip signal is removed. The switch, while it is receiving the drive signal, connects the motor driving the pump into a high speed configuration. After the specified period of time, the switch will cause the motor to change to low speed operation.

    摘要翻译: 一种用于多速流体泵和电动机的电子控制系统。 通过传感器测量电动机,泵或从泵排出的流体的参数。 当达到参数的预定值时,传感器向定时器电路提供跳闸信号。 定时器电路在存在跳闸信号的同时在去除跳闸信号之后的指定时间段内向开关提供驱动信号。 开关在接收到驱动信号时,将驱动泵的电机连接到高速配置。 在指定的时间后,开关将使电机变为低速运行。