公开(公告)号：US20130251540A1

公开(公告)日：2013-09-26

申请号：US13894976

申请日：2013-05-15

Applicant: KSB Aktiengesellschaft

Inventor： Thomas PAULUS ,  Jochen SCHAAB

IPC: F04B49/20

CPC classification number: F04B49/065 ,  F04B49/12 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04D15/0066 ,  F04D15/0088

Abstract: A displacement pump arrangement, method for operating the displacement pump arrangement and a control device for controlling the displacement pump arrangement provide rotational-speed-variable control of an expeller pump unit for feeding a fluid. The arrangement includes an expeller pump and a drive, the drive being composed of an electric drive motor and a frequency converter, and a control device. The control device controls a state value such as a final pressure of the expeller pump a setpoint value. The control device detects state values of a control variable are supplied by the drive, in particular relating to the position, rotational speed and torque of the drive motor, and adjusts the displacement pump output to reach the setpoint value without using sensors.

Abstract translation: 排量泵装置，用于操作排量泵装置的方法和用于控制排量泵装置的控制装置提供用于供给流体的排出泵单元的旋转速度可变控制。 该装置包括推进器泵和驱动器，该驱动器由电驱动马达和变频器组成，以及控制装置。 控制装置控制诸如推进器泵的最终压力的状态值设定值。 控制装置检测由驱动器提供的控制变量的状态值，特别是与驱动电动机的位置，转速和转矩相关，并且调节位移泵输出以达到设定点值而不使用传感器。