Title:
ELECTRIC VALVE
Document Type and Number:
WIPO Patent Application WO/2023/286580
Kind Code:
A1
Abstract:
[Problem] To provide an electric valve capable of obtaining a desired flow rate characteristic without depending on the shape of a valve body. [Solution] A control device 200 of an electric valve 1 stores pulse number information relating to pulse numbers sequentially assigned to positions from a closed position to a fully-opened position of a valve body 40 and step angle information relating to step angles that correspond to the pulse numbers, respectively. The control device 200 receives, from a control unit 400, a valve body movement command relating to a movement target position of the valve body 40. The control device 200 acquires the pulse numbers assigned to positions from the current position to the movement target position of the valve body 40. Then, the control device 200 rotates a stepping motor to a step angle corresponding to each of the pulse numbers in the order of the pulse numbers assigned from the current position to the movement target position of the valve body.
More Like This:
| WO/2012/042745 | CONTROL VALVE |
| JPH0740797 | [Name of device] Drain discharge device |
Inventors:
NARUKAWA BUNTA (JP)
HAYASHI AKIHIRO (JP)
HAYASHI AKIHIRO (JP)
Application Number:
PCT/JP2022/025520
Publication Date:
January 19, 2023
Filing Date:
June 27, 2022
Export Citation:
Assignee:
FUJIKOKI CORP (JP)
International Classes:
F16K31/04
Foreign References:
| CN112944007A | 2021-06-11 | |||
| JP2011250019A | 2011-12-08 | |||
| JP2013068294A | 2013-04-18 | |||
| JP2012154371A | 2012-08-16 | |||
| JPH08268030A | 1996-10-15 |
Attorney, Agent or Firm:
OPUS IP LAW FIRM (JP)
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