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1. 发明专利

JPH11338550A PRESSURE REGULATOR FOR VERY SMALL AMOUNT OF STANDARD GAS 失效
公开(公告)号：JPH11338550A
公开(公告)日：1999-12-10
申请号：JP16295198
申请日：1998-05-26
申请人： HORIBA LTD
发明人： AKIYAMA SHIGEYUKI , AOKI JUNJI , TSUJI MITSUYOSHI , OTA SHIGEHARU
IPC分类号： F16K31/126 , G05D16/06
摘要： PROBLEM TO BE SOLVED: To stably supply a very small amount of component gas which satisfies the specifications of primary and secondary pressure reducing mechanisms and has small gas adsorptivity and small contaminant gas production under a low pressure for a long period. SOLUTION: This pressure regulator is equipped with a primary pressure chamber 3 which is connected to a primary-side flow passage 2, a secondary pressure chamber 5 which is connected to a secondary-side flow passage 4, a pressure regulating chamber 6 which is provided between both the pressure chambers 3 and 5 and communicates with both the pressure chambers 3 and 5, a primary-side regulating valve 11 which controls passage from the primary pressure chamber 3 to the regulating chamber 6, a secondary regulating valve 22 which controls passage from the regulating chamber 6 to the secondary pressure chamber 5, a primary-side diaphragm 15 which is provided for the regulating chamber 6, associated with the primary-side regulating valve 11, and made of anticorrosive metal, and a secondary-side diaphragm 25 which is provided for the secondary pressure chamber 5, associated with the secondary- side regulating valve 22, and made of ethylene tetrafluoride resin.

2. 发明专利

JPH11338551A PRESSURE REGULATOR FOR VERY SMALL AMOUNT OF STANDARD GAS 失效
公开(公告)号：JPH11338551A
公开(公告)日：1999-12-10
申请号：JP16295298
申请日：1998-05-26
申请人： HORIBA LTD
发明人： TSUJI MITSUYOSHI , SHIMIZU NAOHITO , AKIYAMA SHIGEYUKI , OTA SHIGEHARU
IPC分类号： G05D16/06
摘要： PROBLEM TO BE SOLVED: To eliminate the change with time in the pressure value of a secondary pressure chamber by making excellent the parallelism between the seal and sleeve of a regulating valve of a secondary pressure reducing mechanism and improving gas sealing properties and measured pressure precision. SOLUTION: This regulator is equipped with a primary pressure chamber 3 connected to a primary flow passage 2, a secondary pressure chamber 5 connected to a secondary flow passage 4, a pressure regulating chamber 6 which is provided between the primary pressure chamber 3 and secondary pressure chamber 5 across partition walls 7 and 8 and communicates with both the pressure chambers 3 and 5 through two valve openings 9 and 10 bored in the partition walls 7 and 8, a primary regulating valve 13 which controls passage from the primary pressure chamber 3 to the pressure regulating chamber 6, a secondary regulating valve 24 which controls passage from the pressure governing chamber 6 to the secondary pressure chamber 5, and seats 16 and 30 of both the regulating valves 13 and 24 which are provided for valve 14 and 25 of both the regulating valve 13 and 14 and pressed against the valve openings 9 and 10, freely touchably/separably to block the valve openings 9 and 10, and a fluorine- based elastomer is used for the seat 30 of the secondary regulating valve 24.

3. 发明专利

JP2000179797A JOINT MOUNTING STRUCTURE FOR PRESSURE REGULATOR 失效
公开(公告)号：JP2000179797A
公开(公告)日：2000-06-27
申请号：JP35498398
申请日：1998-12-14
申请人： HORIBA LTD , ONO SEISAKUSHO KK
发明人： AKIYAMA SHIGEYUKI , AOKI JUNJI , TSUJI MITSUYOSHI , SHIMIZU NAOHITO , OTA SHIGEHARU
IPC分类号： F17C13/00 , F16B37/00 , F16L15/04
摘要： PROBLEM TO BE SOLVED: To maintain excellent sealability when a returning rotational force load of a regulator main body is very great and even when the regulator main body is rotated toward the loosened direction by some rare accident, in joint mounting structure for a pressure regulator. SOLUTION: In this joint mounting structure for a pressure regulator provided with a mounting joint 4 for a high pressure gas cylinder, a recessed tapered face S1 abutting to a tapered face S of a joint tip, a straight hole portion 16 for inserting a straight joint portion 11 of the joint tip part, and a parallel thread 17 for screwing a joint having a diameter larger than the straight hole portion 16 are formed in a joint mounting hole 15 of a regulator main body 3, and a sealing material 10 is interposed between the straight joint portion 11 of the joint tip and the straight hole portion 16.

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