Title:
流体制御弁
Document Type and Number:
Japanese Patent JP6846747
Kind Code:
B2
Abstract:
To provide a fluid control valve of a piezoelectric pump-type fluid control device capable of solving problems that it takes time for exhausting and reliability of an adhesion part of a valve element taking much manufacturing man-hours and repeatedly moved is degraded, having a proper discharge speed, being easily manufactured, and having high reliability.SOLUTION: A fluid control valve includes a valve element 13 which is held between an upper housing 11 and a lower housing 12 and has a valve element hole 13a closed when a valve element lower face 13c is kept into contact with a projecting portion 12c at a position opposed thereto, and in which the valve element lower face 13c is kept into contact with a pedestal portion 12e, and an outer periphery is closely secured in a state that a valve element upper face 13b is separated from an exhaust hole end face 11f projecting into a first upper housing space 11c.SELECTED DRAWING: Figure 3
Inventors:
Rei Yoshida
Yoshitoshi Yamamoto
Arima Tora
Koichi Kawabata
Mizunuma Kazuhide
Toru Takada
Yoshitoshi Yamamoto
Arima Tora
Koichi Kawabata
Mizunuma Kazuhide
Toru Takada
Application Number:
JP2019050957A
Publication Date:
March 24, 2021
Filing Date:
March 19, 2019
Export Citation:
Assignee:
Gunma Prefecture
NIHON SEIMITSU SOKKI CO.,LTD.
NIHON SEIMITSU SOKKI CO.,LTD.
International Classes:
F16K7/17; F04B45/047
Domestic Patent References:
| JP2001173568A | ||||
| JP2019035402A |
Foreign References:
| WO2013157304A1 | ||||
| WO2016063710A1 | ||||
| WO2018021099A1 |