Title:
WATER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2022003227
Kind Code:
A
Abstract:
To disclose an example of a water supply device which can quickly cope with sudden increase of a water supply amount and in which pressure pulsation hardly occurs.SOLUTION: A control portion CTL determines not a fixed value determined in advance on the basis of an evaluation test and an experience value, but a function value (Kp=X×▵Q) of a flow rate change rate ΔQ, as a proportional term Kp used in PID control. Here, a coefficient X is a predetermined real number larger than 0. Thus a water supply device 1 can quickly cope with sudden increase of a water supply amount, and pressure pulsation hardly occurs.SELECTED DRAWING: Figure 1
Inventors:
SAKATANI TETSUNORI
Application Number:
JP2020107626A
Publication Date:
January 11, 2022
Filing Date:
June 23, 2020
Export Citation:
Assignee:
KAWAMOTO PUMP MFG
International Classes:
F04D15/00; F04D29/66
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation