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1. 发明专利

JPH08189574A VALVE 失效
公开(公告)号：JPH08189574A
公开(公告)日：1996-07-23
申请号：JP229495
申请日：1995-01-10
申请人： MOTOYAMA ENG WORKS
发明人： UCHISAWA OSAMU , YAMAZAKI SHIGEKAZU , YAMASHIMA ATSUSHI
IPC分类号： F16K7/12 , F16K25/04
摘要： PURPOSE: To provide a valve having a valve seat which is stable even in a system using fluid such as N2 O degrading and swelling a valve seat material and a system using the valve by heating it. CONSTITUTION: A valve is composed of a valve main body l having an inflow passage 1a and an outflow passage 1b of fluid, a hood 2, a shaft 3, a spring 4, a handle 6 or the like. A ball plate 10 and an actuator button 11 are housed in a through hole of an actuator button holder 9 positioned in a bottom part of the hood 2. A valve seat 12 is installed above a main body central place between the inflow passage 1a and the outflow passage 1b by a valve seat holder 13, and a diaphragm 14 is arranged between an upper part of the valve seat 12 and the actuator button holder 9. The valve seat 12 is composed of polybenzimidazole resin.

2. 发明专利

JPH07139649A DIAPHRAGM VALVE STRUCTURE 失效
公开(公告)号：JPH07139649A
公开(公告)日：1995-05-30
申请号：JP28494093
申请日：1993-11-15
申请人： MOTOYAMA ENG WORKS
发明人： UCHISAWA OSAMU , YAMASHIMA ATSUSHI , YAMAZAKI SHIGEKAZU
IPC分类号： F16K7/17 , F16K7/14 , F16K41/12
摘要： PURPOSE:To provide a durable and reliable diaphragm valve structure by forming at least two projecting parts between the in-flow passage and the out- flow passage. CONSTITUTION:When the compressed air is fed to an air-feeding port, the pressing force is applied to a diaphragm 14 to press it down, the space between a valve seat 12 and an opening part of a seat holder 13 is reduced in volume, and abutted on the upper part of the valve seat 12 at contact points t1-t2 to seal the opening part. When the pressing force is further applied to the diaphragm 14, the projecting part of the valve seat 12 is compressed, and also abutted on the projecting part of the seat holder 13 at the other point t3. The diaphragm 14 abutted on the valve seat 12 and the projecting part of the seat holder 13 keeps the in-flow passage 21 in the air-tight condition at the valve seat 12 and the seat holder 13 respectively. This constitution surely provides the double seal at two contact points t1-t2 with the valve seat 12 and at the contact point t3 with the seat holder 13. The seal is more surely constituted, and the reliablity of the diaphragm valve can be improved.

3. 发明专利

JPH10205628A DIAPHRAGM VALVE 失效
公开(公告)号：JPH10205628A
公开(公告)日：1998-08-04
申请号：JP1175997
申请日：1997-01-24
申请人： MOTOYAMA ENG WORKS , T F SHII KK
发明人： UCHISAWA OSAMU , CHIBA YASUHIRO , YAMAZAKI SHIGEKAZU , TSUKAZAKI HIDEO , IE TAKAYUKI
IPC分类号： F16K7/12 , F16K7/16
摘要： PROBLEM TO BE SOLVED: To ensure seal surface pressure of a not yet-push part, and prevent bending fatigue generated on a diaphragm PTFE film by arranging a ring part which is formed by reinforcing a rubber base material with a reinforcing layer and a reinforcing cloth material on an outer peripheral end part of a driving part side of the diaphragm. SOLUTION: In a condition when a valve is opened, an outer peripheral part of a diaphragm 40 and an outer peripheral part of a ring plate 50 is held between a valve main body 10 and a cylinder main body 20. A region other than an outer peripheral part of the ring plate 50 is held between the region other than an outer peripheral part of the diaphragm 40 and a compressor 30. But since a space is formed between the cylinder main body 20 and the compressor 30, a not yet-push part on which surface pressure is not applied on the ring plate 50 and the diaphragm 40 is generated by the space. Therefore, the ring plate 50 is provided, which is composed of a rubber base material made of fluorine contained rubber and the like, a reinforcing layer 52 made of a PTFE film integrated with the diaphragm 40 side of the rubber base material 51, and a reinforcing cloth material 53 buried in the driving part side of the rubber base material 51. It is thus possible to ensure seal surface pressure of the not yet-push part.

4. 发明专利

JPH109419A CYLINDER CABINET CHECK VALVE 失效
公开(公告)号：JPH109419A
公开(公告)日：1998-01-13
申请号：JP16211796
申请日：1996-06-21
申请人： MOTOYAMA ENG WORKS
发明人： UCHISAWA OSAMU , YAMAZAKI SHIGEKAZU
IPC分类号： F16K15/08 , F16K15/14
摘要： PROBLEM TO BE SOLVED: To prevent generation of the dust at the time of valve operation and opening, prevent sinking-in of a lip part, and dissolve the problem such as breakage of a lip by communicating a valve seat and a primary flow passage with each other through a plurality of narrow hole, and forming the diameter of the narrow hole smaller than the wall thickness of the lip part. SOLUTION: A narrow hole 4 is formed on a body 1 positioning to the terminal of a primary flow passage 5, and a V-ring 7 is arranged in the vicinity of the outlet of the secondary flow passage 6 side of the narrow hole 4. The secondary flow passage 6 is formed between the body 1 and a bonnet 2 and on the bonnet 2. The V-ring 7 is provided with a lip part 9 which is elastically deformable and opposed in freely separatable contact with the valve seat 8 formed in the vicinity of the narrow hole 4. Opening/closing operation of the lip part 9 is carried out by only being in separatable contact with the valve seat 8 and the narrow hole 4 in relation to the pressure difference between the primary flow passage 5 and the secondary flow passage 6. At this time, a plurality of narrow holes 4 are formed smaller than the thickness of the lip on a circumference. Local excessive tension stress applied on the lip part 9 is dispersed, and thereby, durability is improved.

5. 发明专利

JPH06235466A DIAPHRAGM TYPE FLOW RATE REGULATING VALVE 失效
公开(公告)号：JPH06235466A
公开(公告)日：1994-08-23
申请号：JP2023393
申请日：1993-02-08
申请人： MOTOYAMA ENG WORKS
发明人： UCHISAWA OSAMU , YAMAZAKI SHIGEKAZU
IPC分类号： F16K7/16
摘要： PURPOSE:To provide a diaphragm type flow rate regulating valve capable of simplifying and miniaturizing constitution of the overall device and contributing to reduction of manufacturing cost. CONSTITUTION:A lower stem 12 and an upper stem 15 are coaxially assembled in a cylindrical bonnet 11, and a first male screw part 12A formed on the lower stem 12 and a first female screw part 15A formed on the upper stem 15 are screwed. In the meantime, a second male screw part 11A formed on the bonnet 11 and a second female screw part 16A formed on a handle 16 which is integral with the upper stem 15 are screwed with each other. Consequently, by assembling the whole of the device in a columnar shape and driving a coaxial double screw mechanism, it comes to be possible to easily and smoothly regulate valve opening of a diaphragm, to simplify and miniaturize the whole device and to realize reduction of cost.

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