Title:
MOTORIZED VALVE CONTROL DEVICE, MOTORIZED VALVE DEVICE, AND METHOD FOR CONTROLLING MOTORIZED VALVE
Document Type and Number:
WIPO Patent Application WO/2023/153251
Kind Code:
A1
Abstract:
[Problem] To provide a motorized valve control device capable of determining whether a rotor can rotate normally within an appropriate rotation range. [Solution] The motorized valve control device 90 (1) inputs a pulse P to a stepping motor 80 to cause a rotor 81 to rotate in a second direction, (2) when a motorized valve 5 enters a second direction rotation restricted state Sr2, inputs the pulse P to the stepping motor 80 to cause the rotor 81 to rotate in a first direction, (3) when the motorized valve 5 enters a first direction rotation restricted state Sr1 while rotating the rotor 81 in the first direction, acquires the number of pulses (input number Xi) input to the stepping motor 80 during the period from the second direction rotation restricted state Sr2 to the first direction rotation restricted state Sr1, (4) when the input number Xi is greater than or equal to a design number Xd and less than or equal to an upper limit number Xu, determines that the rotor 81 can rotate normally, and (5) when the input number Xi is less than the design number Xd or when the input number Xi is greater than the upper limit number Xu, determines that the rotor 81 cannot rotate normally.
Inventors:
HAGIMOTO HIROSHI (JP)
ISHIZUKA YUSUKE (JP)
ISHIZUKA YUSUKE (JP)
Application Number:
PCT/JP2023/002780
Publication Date:
August 17, 2023
Filing Date:
January 30, 2023
Export Citation:
Assignee:
FUJIKOKI CORP (JP)
International Classes:
F16K31/04
Foreign References:
| JP2013156006A | 2013-08-15 | |||
| JP2016156447A | 2016-09-01 |
Attorney, Agent or Firm:
OPUS IP LAW FIRM (JP)
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