Title:
VALVE DEVICE AND GAS CONSUMPTION UNIT
Document Type and Number:
WIPO Patent Application WO/2020/235504
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide a valve device and a gas consumption unit which can be attached to a storage container to restrict the passage of fluid, the valve device and the gas consumption unit being small-sized but provided with a safety valve that releases an excessive pressure greater than a predetermined pressure. [Solution] A relief body (41) is configured in a ring shape to fit around a tubular main body (13) so as to move forward and backward along an axial direction (L) inside a cover portion (30). The relief body (41) is provided with a relief spring (42), two O-rings (4), and a third flow channel (R3). The relief spring (42) urges the relief body (41) toward a proximal end side (Lb) with an urging force of a predetermined pressure or less. The two O-rings (4) are separated in the axial direction (L) and seal gaps between the tubular main body (13) and the relief body (41). The third flow channel (R3) communicates with a part located between the tubular main body (13) and the relief body (41) and between the two O-rings (4), and with a first flow channel (R1). The effective area of the O-ring (4b) on the proximal end side (Lb) is wider than the effective area of the O-ring (4a) on a distal end side (Lf).
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Inventors:
MATSUMOTO KAZUTO (JP)
KATOU HAYATO (JP)
TAKEDA MASARU (JP)
MIYATA KAZUYUKI (JP)
KATOU HAYATO (JP)
TAKEDA MASARU (JP)
MIYATA KAZUYUKI (JP)
Application Number:
PCT/JP2020/019516
Publication Date:
November 26, 2020
Filing Date:
May 15, 2020
Export Citation:
Assignee:
IWATANI CORP (JP)
NERIKI VALVE CO LTD (JP)
NERIKI VALVE CO LTD (JP)
International Classes:
F16K27/07; F16K51/00; F17C11/00; F17C13/04
Domestic Patent References:
| WO2017191768A1 | 2017-11-09 |
Foreign References:
| JP2016011739A | 2016-01-21 | |||
| JPH0744971U | 1995-12-05 | |||
| JP2001304499A | 2001-10-31 | |||
| JPS57165218U | 1982-10-18 | |||
| JPS6059945U | 1985-04-25 | |||
| JPH0663329A | 1994-03-08 | |||
| JP2006161956A | 2006-06-22 | |||
| US5307834A | 1994-05-03 | |||
| JP2009508074A | 2009-02-26 | |||
| JPH0681000U | 1994-11-15 | |||
| JPH05322060A | 1993-12-07 | |||
| JPS5525107U | 1980-02-18 | |||
| JP2001182931A | 2001-07-06 |
Attorney, Agent or Firm:
NAGATA Motoaki et al. (JP)
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