Title:
ポンプ装置を制御するための方法
Document Type and Number:
Japanese Patent JP6404367
Kind Code:
B2
Abstract:
A method for controlling a pump arrangement upon clogging. The arrangement includes a pump and a control unit. The pump includes a motor, and the control unit drives the motor. The motor during operation is associated with an operational parameter from which the motor torque may be derived. The operational parameter has a normal value PN during normal operation of the motor in a first direction. The method includes the steps of driving the motor in a first direction by the control unit, stopping the motor if a real value P of the operational parameter exceeds a predetermined clogging limit PI, driving the motor in an opposite second direction a predetermined flushing time TR by the control unit, and stopping the motor if the absolute value of the real value P of the operational parameter during the flushing time TR exceeds the absolute value of a first unfastening limit PL1.
Inventors:
Freman, Alexander
Application Number:
JP2016570978A
Publication Date:
October 10, 2018
Filing Date:
June 01, 2015
Export Citation:
Assignee:
Xylem IP Management Society, A Responsible Sovereign Limited
International Classes:
F04D15/02; F04D15/00
Domestic Patent References:
| JP200530322A | ||||
| JP1193859A | ||||
| JP2006258076A |
Foreign References:
| WO2013096726A1 | ||||
| US20090081050 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Yasuko Tagami
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Yasuko Tagami