Invention Grant
- Patent Title: Electrically operated valve
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Application No.: US16492424Application Date: 2018-02-21
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Publication No.: US10975984B2Publication Date: 2021-04-13
- Inventor: Satoshi Uehara , Yusuke Arai , Takeshi Hosoya
- Applicant: Fujikoki Corporation
- Applicant Address: JP Tokyo
- Assignee: Fujikoki Corporation
- Current Assignee: Fujikoki Corporation
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JPJP2017-070366 20170331
- International Application: PCT/JP2018/006233 WO 20180221
- International Announcement: WO2018/180041 WO 20181004
- Main IPC: F16K37/00
- IPC: F16K37/00 ; F16K31/04

Abstract:
An object of the present invention is to provide an electrically operated valve capable of more accurately detecting the position of a valve body.
In order to achieve the above object, the electrically operated valve of the present invention comprises a valve body, a driver configured to move the valve body along a first axis, a rotation shaft configured to rotate the driver around the first axis, a permanent magnet member, an angle sensor, and a yoke configured to cover a portion of the permanent magnet or a portion of the angle sensor. The permanent magnet member is disposed on the rotation shaft and configured to rotate with the rotation shaft. The angle sensor is configured to detect a rotation angle of a permanent magnet included in the permanent magnet member. The angle sensor is disposed above the permanent magnet.
In order to achieve the above object, the electrically operated valve of the present invention comprises a valve body, a driver configured to move the valve body along a first axis, a rotation shaft configured to rotate the driver around the first axis, a permanent magnet member, an angle sensor, and a yoke configured to cover a portion of the permanent magnet or a portion of the angle sensor. The permanent magnet member is disposed on the rotation shaft and configured to rotate with the rotation shaft. The angle sensor is configured to detect a rotation angle of a permanent magnet included in the permanent magnet member. The angle sensor is disposed above the permanent magnet.
Public/Granted literature
- US20200041020A1 ELECTRICALLY OPERATED VALVE Public/Granted day:2020-02-06
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