Title:
PRESSURE REGULATOR
Document Type and Number:
WIPO Patent Application WO/2012/105356
Kind Code:
A1
Abstract:
[Problem] To provide a pressure regulator comprising an adiabatic compression preventing mechanism and a pressure indicating mechanism. [Solution] A pressure regulator (A) comprises an adiabatic compression preventing mechanism (B) and a pressure indicating mechanism (C). The adiabatic compression preventing mechanism (B) comprises: a partitioning member (11) slidably disposed on a stepped part (10) at a primary-side passage (1) of the pressure regulator (A), the partitioning member (11) including a central small flow passage (11a) and a circumferential large flow passage (11f), the large flow passage being blocked when the partitioning member (11) makes contact with the stepped part (10), the partitioning member (11) further including a connection passage (17) formed at a downstream side of an upstream-side end surface (11d) so as to connect the small flow passage and the large flow passage; and a first spring (12) urging the partitioning member toward an upstream side in a gas flow direction. The pressure indicating mechanism (C) comprises: a cylindrical part (31) in which a first relief chamber (31a) having a small diameter and a second relief chamber (32b) having a large diameter are formed with an opening (31d) crossing the second relief chamber; a sliding member (32) including an indicating part (32a) and a pressure receiving part (32b), the sliding member (32) being slidably inserted in the cylindrical part (31); an O-ring (33) disposed on an end part of the first relief chamber; and a second spring (35) urging the sliding member toward the pressure receiving part.
Inventors:
KOBE TOSHIO (JP)
TSUBOKO TOSHI (JP)
MIZUNO SEIJI (JP)
TAKAHASHI MASAO (JP)
TSUBOKO TOSHI (JP)
MIZUNO SEIJI (JP)
TAKAHASHI MASAO (JP)
Application Number:
PCT/JP2012/051352
Publication Date:
August 09, 2012
Filing Date:
January 23, 2012
Export Citation:
Assignee:
KOIKE SANSO KOGYO KK (JP)
KOBE TOSHIO (JP)
TSUBOKO TOSHI (JP)
MIZUNO SEIJI (JP)
TAKAHASHI MASAO (JP)
KOBE TOSHIO (JP)
TSUBOKO TOSHI (JP)
MIZUNO SEIJI (JP)
TAKAHASHI MASAO (JP)
International Classes:
G05D16/06; F16K17/30; F16K37/00
Foreign References:
| JPH0419280Y2 | 1992-04-30 | |||
| JP2010203868A | 2010-09-16 | |||
| JP2007064372A | 2007-03-15 |
Attorney, Agent or Firm:
NAKAGAWA INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Nakagawa international patent firm (JP)
Patent business corporation Nakagawa international patent firm (JP)
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Claims:
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