Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/064745
Kind Code:
A1
Abstract:
Provided is a valve device with which the sealing performance of a vent hole can be ensured and reopening valve pressure can be increased. A valve device 10 comprises: a housing 15 provided with a partition wall 23 and a vent hole 25; and a float valve 40 that is accommodated in a valve chamber so as to be able to move up/down, and that opens/closes the vent hole. The float valve 40 includes: a lower member 50; an upper member 60 that is disposed above the lower member 50, and that is locked and held via a first locking part so as to be swingable with respect to the lower member 50; and an elastic seal member 80 that is elastic, that is locked and held via a second locking part so as to be movable by a predetermined distance with respect to the upper member 60, and that contacts and separates from a valve seat so as to open/close the vent hole.
Inventors:
YAJIMA KAZUKI (JP)
MIHARA KENTA (JP)
MIHARA KENTA (JP)
Application Number:
PCT/JP2021/015497
Publication Date:
March 31, 2022
Filing Date:
April 14, 2021
Export Citation:
Assignee:
PIOLAX INC (JP)
International Classes:
F16K31/24; F02M37/00
Domestic Patent References:
| WO2020105541A1 | 2020-05-28 |
Foreign References:
| JP2006234159A | 2006-09-07 | |||
| US20190210456A1 | 2019-07-11 | |||
| US20040060596A1 | 2004-04-01 | |||
| JP2001248743A | 2001-09-14 |
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
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