Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/172388
Kind Code:
A1
Abstract:
Provided is a valve device with which a drive system can be controlled in a simple manner and the change in a flow rate characteristic is small even when there has been a temperature change in a valve device body. The valve device comprises an actuator, a valve function module, and a housing. The actuator is provided with: a base section serving as a foundation; a piezoelectric element of which one end is connected to an attachment surface of the base section and which extends in a first longitudinal direction; a support member of which one end is attached to the attachment surface alongside the piezoelectric element and which extends in a second longitudinal direction intersecting the first longitudinal direction; and an actuating section that is connected to the other ends of both the piezoelectric element and the support member and that is displaced in a displacement direction, which is different from both the first longitudinal direction and the second longitudinal direction, in association with expansion and contraction of the piezoelectric element, to drive a valve section. The housing is provided with a supply port to which a fluid is supplied, a discharge port that discharges the fluid supplied from the supply port due to separation of the valve section and a valve seat, and a holding section that ensures a gap between the valve function module and the housing to hold the valve function module.
Inventors:
CHEE SZE KEAT (JP)
YANO TAKESHI (JP)
YANO AKIO (JP)
ITO TAKAFUMI (JP)
YANO TAKESHI (JP)
YANO AKIO (JP)
ITO TAKAFUMI (JP)
Application Number:
PCT/JP2021/006953
Publication Date:
September 02, 2021
Filing Date:
February 24, 2021
Export Citation:
Assignee:
MECHANO TRANSF CORPORATION (JP)
SATAKE ENG CO LTD (JP)
SATAKE ENG CO LTD (JP)
International Classes:
F16K31/02; H01L41/053; H01L41/09; H02N2/10; H01L41/083
Domestic Patent References:
| WO2019009035A1 | 2019-01-10 |
Foreign References:
| US20150221853A1 | 2015-08-06 |
Attorney, Agent or Firm:
TAKEMOTO Yukihiro (JP)
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