Title:
CONTROL VALVE DEVICE
Document Type and Number:
Japanese Patent JP2015215069
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technology that mounts a valve body stroke detection device to a spool valve device compactly.SOLUTION: A control valve device 1 includes: a spool hole 12; a metal spool 20 disposed inside the spool hole 12; and a stroke sensor 30 for detecting an axial position of the spool 20. In the stroke sensor 30, at least a part of a moving range of an end part on a near side of the spool 20 is positioned inside of a coil 31 to reduce the dimension in a sliding direction of the spool 20.
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Inventors:
SAKAGAMI HITOSHI
MAGAI KAZUMI
MAGAI KAZUMI
Application Number:
JP2014099094A
Publication Date:
December 03, 2015
Filing Date:
May 12, 2014
Export Citation:
Assignee:
NIDEC TOSOK CORP
International Classes:
F16K11/07; F16K3/24; F16K37/00
Domestic Patent References:
| JPS60167277U | 1985-11-06 | |||
| JPS60108897U | 1985-07-24 | |||
| JP2003329404A | 2003-11-19 | |||
| JPH0743105A | 1995-02-10 | |||
| JP2005286163A | 2005-10-13 |
Attorney, Agent or Firm:
Nidec Corporation
Takami Nishida
Takami Nishida