Title:
ELECTRIC-OPERATED VALVE
Document Type and Number:
WIPO Patent Application WO/2021/141033
Kind Code:
A1
Abstract:
[Problem] To provide an electric-operated valve which is capable of reliably detecting magnetic flux generated from a magnet rotor by means of a configuration that uses a relatively small number of components. [Solution] This electric-operated valve (1) has a magnet rotor (41) disposed inside a can (30). On an outer circumferential surface (41a) of the magnet rotor (41), a plurality of N-poles and S-poles are provided side by side in the circumferential direction. Magnetic sensors (35a), (35b) are disposed on the outer circumferential surface (30a) of the can (30) so as to face the magnet rotor (41) in the radial direction across the can (30). Further, when viewed from the direction of rotational axis, the magnetic sensor (35a) is disposed on a straight line (F1) that passes the rotational axis of the magnet rotor (41) and the center of one downward-facing pole tooth (63a) among multiple pole teeth of an upper stator (61).
Inventors:
MATSUBARA YUTA (JP)
YOSHIDA TATSUYA (JP)
ARAI YUSUKE (JP)
HOSOYA TAKESHI (JP)
YOSHIDA TATSUYA (JP)
ARAI YUSUKE (JP)
HOSOYA TAKESHI (JP)
Application Number:
PCT/JP2021/000152
Publication Date:
July 15, 2021
Filing Date:
January 06, 2021
Export Citation:
Assignee:
FUJIKOKI CORP (JP)
International Classes:
F16K31/04; F16K37/00
Foreign References:
| JP2019124318A | 2019-07-25 | |||
| JP2007209100A | 2007-08-16 | |||
| JP2016098925A | 2016-05-30 | |||
| JP2018179133A | 2018-11-15 | |||
| JP2018179133A | 2018-11-15 | |||
| JP2001012633A | 2001-01-16 |
Other References:
See also references of EP 4089306A4
Attorney, Agent or Firm:
OPUS IP LAW FIRM (JP)
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