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11. 发明专利

JPH0953964A CHANNEL STRUCTURE FOR FLOWMETER 失效
公开(公告)号：JPH0953964A
公开(公告)日：1997-02-25
申请号：JP22855595
申请日：1995-08-14
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , AICHI TOKEI DENKI KK , KIMMON MFG CO LTD , TAKENAKA SEISAKUSHO CO LTD , KANSAI GASMETER KK , TOYO GASMETER CO
发明人： NUKUI KAZUMITSU , KATO HIDEO , SAKAI KATSUTO , SATOU SOUBUN , SATO SHINICHI , OKAMURA SHIGENORI , OKADA SHUICHI , SATO TAKAHITO , HIRAI KANJI , YAMADA KAZUHIRO , OIKE HIDEYUKI , NAMIMOTO MASANOBU , IMAZAKI MASASHIGE , MIZUKOSHI YASUSHI
IPC分类号： G01F1/20 , G01F1/00 , G01F7/00
摘要： PROBLEM TO BE SOLVED: To provide a channel structure of flowmeter in which the accuracy of measurement can be enhanced by straightening the flow of fluid in the vicinity of a low flow rate measuring means. SOLUTION: A fluidic element 20 for measuring a high flow rate is disposed in a channel 15 while a current velocity sensor 33 for measuring a low flow rate is disposed in a channel 31. A pressure fluctuation absorber 40 is disposed in a channel 31 located on the upstream side from the current velocity sensor 33 and a straightening net 34 is disposed in the channel 31 between the outlet part 412 of pressure fluctuation absorber 40 and the current velocity sensor 33. The straightening net 34 is formed out of two net members 34a arranged at an appropriate interval from the upstream side toward the downstream side while covering the cross section of the channel 31. The gas flow discharged from the outlet part 412 of pressure fluctuation absorber 40 is straightened by the straightening net 34 before reaching the current velocity sensor 33.

12. 发明专利

JPH0953963A PRESSURE FLUCTUATION ABSORBER FOR FLUIDIC FLOWMETER 失效
公开(公告)号：JPH0953963A
公开(公告)日：1997-02-25
申请号：JP22855495
申请日：1995-08-14
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , AICHI TOKEI DENKI KK , KIMMON MFG CO LTD , TAKENAKA SEISAKUSHO CO LTD , KANSAI GASMETER KK , TOYO GASMETER CO
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , KATO HIDEO , SATOU SOUBUN , SATO SHINICHI , OKAMURA SHIGENORI , SATO TAKAHITO , SANNOMIYA SHIZUO , MATSUSHITA MASAHIKO , NOTO MASAHIRO , YAMADA KAZUHIRO , ISSHIKI HISASHI , NAMIMOTO MASANOBU , IMAZAKI MASASHIGE , MIZUKOSHI YASUSHI
IPC分类号： G01F1/20 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To obtain a pressure fluctuation absorber in which the function is prevented from the deterioration due to adhesion of dust. SOLUTION: A gas flow from the upstream side is guided through a pressure fluctuation absorber 30 to a fluidic element. In the pressure fluctuation absorber 30, dust eliminating plates 330a, 330b are secured in the channel on the upstream side from an inlet part 311 while inclining against the direction X of gas flow. The dust eliminating plates 330a, 330b are provided, on the surface thereof, with a plurality of protrusions 332a, 332b. Dust in the gas is removed when the gas strikes against these protrusions 332a, 332b. The dust-free gas is introduced through the inlet part 311 into the case 310. Consequently, a float 320 moves up and down in the case 310 depending on the pressure difference between the upstream and downstream sides.

13. 发明专利

JPH0953962A PRESSURE FLUCTUATION ABSORBER FOR FLUIDIC FLOWMETER 失效
公开(公告)号：JPH0953962A
公开(公告)日：1997-02-25
申请号：JP22855395
申请日：1995-08-14
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , AICHI TOKEI DENKI KK , KIMMON MFG CO LTD , TAKENAKA SEISAKUSHO CO LTD , KANSAI GASMETER KK , TOYO GASMETER CO
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , KATO HIDEO , SATOU SOUBUN , SATO SHINICHI , OKAMURA SHIGENORI , SATO TAKAHITO , SANNOMIYA SHIZUO , MATSUSHITA MASAHIKO , NOTO MASAHIRO , YAMADA KAZUHIRO , AOKI TOSHIAKI , NAMIMOTO MASANOBU , IMAZAKI MASASHIGE , MIZUKOSHI YASUSHI
IPC分类号： G01F1/20 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To obtain a pressure fluctuation absorber in which the function is prevented from the deterioration due to adhesion of dust. SOLUTION: A gas flow from the upstream side is guided through a pressure fluctuation absorber 20 to a fluidic element. In the pressure fluctuation absorber 20, a float 220 moves up and down in an outer case 210 depending on the pressure difference between the upstream and downstream sides. An inner case 230 is disposed at the inlet part 211 of the outer case 210. The gas touches the inner wall face 232 of inner case 230 when it is introduced into the outer case 210. Consequently, dust in the gas adheres to the inner wall face 232 of inner case 230 and removed from the gas thus suppressing adhesion of dust in the outer case 210.

14. 发明专利

JPH09145445A PASSAGE STRUCTURE OF FLOWMETER 失效
公开(公告)号：JPH09145445A
公开(公告)日：1997-06-06
申请号：JP32356595
申请日：1995-11-20
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , AICHI TOKEI DENKI KK , KIMMON MFG CO LTD , TAKENAKA SEISAKUSHO CO LTD , KANSAI GASMETER KK , TOYO GASMETER CO
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , KATO HIDEO , SATOU SOUBUN , SATO SHINICHI , SANNOMIYA SHIZUO , AOKI TOSHIAKI , YAMADA KAZUHIRO , OKAMURA SHIGENORI , OKADA SHUICHI , KIMURA YUKIO , NAMIMOTO MASANOBU , MIZUKOSHI YASUSHI , IMAZAKI MASASHIGE
IPC分类号： G01F7/00 , G01F1/00 , G01F1/20
摘要： PROBLEM TO BE SOLVED: To provide a passage structure of a flowmeter by which a pressure loss at large flow rate time can be reduced and a valve driving current can be reduced. SOLUTION: When a gas flow rate increases, a part of an outlet part 212 is opened by a rise in a float 220. The flow rate increases further, and in a condition just before a passage (unillustrated) for a large flow rate area is transferred to an opening condition, the float 220 rises up to the uppermost position, and opens the whole outlet part 212 and an outlet part 221. Therefore, gas flowing out to a clearance 217 from the outlet part 212 of a float case 210 reaches a flow rate measuring passage 17d by passing through the outer periphery of the float case 210, and at the same time, the gas flowing out of the outlet part 221 directly reaches the flow rate measuring passage 17d. Therefore, an increase in differential pressure between the upstream side and the downstream side of a pressure change absorbing device 70 is relieved, and a large electric current is not required for valve opening operation of a cutoff valve (unillustrated) to transfer the passage for a large flow rate area to an opening condition. An increase in a pressure loss is also relieved.

15. 发明专利

JPH0921671A PRESSURE VARIATION ABSORBER 失效
公开(公告)号：JPH0921671A
公开(公告)日：1997-01-21
申请号：JP19260295
申请日：1995-07-05
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , AICHI TOKEI DENKI KK , KIMMON MFG CO LTD , TAKENAKA SEISAKUSHO CO LTD , KANSAI GASMETER KK , TOYO GASMETER CO
发明人： NUKUI KAZUMITSU , KATO HIDEO , SAKAI KATSUTO , SATOU SOUBUN , SATO SHINICHI , OKAMURA SHIGENORI , OKADA SHUICHI , SATO TAKAHITO , SANNOMIYA SHIZUO , YAMADA KAZUHIRO , AOKI TOSHIAKI , NAMIMOTO MASANOBU , IMAZAKI MASASHIGE , MIZUKOSHI YASUSHI
IPC分类号： G01F1/00 , G01F1/20 , G01F15/04 , G05D16/10
摘要： PROBLEM TO BE SOLVED: To reduce influence due to dust or the like in liquid to operation of an float. SOLUTION: A float 230 vertically moves by itself by pressure difference between the upstream side and downstream side to change area of an opening of a vent hole 232 included in a case 210 (that is cross-sectional area for permitting fluid to pass through). Gas from the upstream side flows from an inlet port 218 into an air chamber 217 to push up the float 230, flows in the case 210 through a part of the air vent hole 232 which is thus included in the case 210 and flows out to the donwstream side from an exhaust port 213. Since a sufficient space 234 is provided between the outer peripheral face of the float 230 and the inner peripheral face of the case 210, no adverse influence may be applied to movement of the float 230 even if a considerable amount of dust has been attached here, so that smooth operation of the float 230 can be secured for a long time, thereby excellently maintaining absorbing capability to pressure variation.

16. 发明专利

JPH09264447A GAS CUTOFF DEVICE 失效
公开(公告)号：JPH09264447A
公开(公告)日：1997-10-07
申请号：JP7157596
申请日：1996-03-27
申请人： TOKYO GAS CO LTD , MATSUSHITA ELECTRIC IND CO LTD
发明人： OKAMATSU HIROSUMI , MURAKAMI HIROKUNI , UBUKAWA TOYOMIZU , OTANI TAKAHISA , NUKUI KAZUMITSU , KANEKO ISAO , FUJISAWA KAZUYA , SATOU SOUBUN
IPC分类号： F16K37/00 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To eliminate the effect of a transient noise or the like and prevent the occurrence of erroneous judgement by applying the constitution that an input port judgement part inspects voltage, upon receipt of a port judgement normal signal, the abnormality of a circuit is judged when the voltage is equal to or below the preset level and, then, the circuit abnormality is reported. SOLUTION: An input port judgement part 5, upon receipt of an output signal from a periodic timer part 1 to periodically output a voltage inspection signal A, judges the status of an input port and outputs a port judgement normal signal D and a port judgement abnormality signal E. A voltage detection part 2, upon receipt of the port judgement normal signal D, inspects voltage. Then, the voltage detection part 2 outputs a voltage drop signal B, when the voltage is equal to or lower than the preset value, and a voltage normal signal C when the voltage is abnormal. Also, a circuit abnormality judgement part 6, upon receipt of the port judgement abnormality signal E, identifies a circuit abnormality and outputs a circuit abnormality reporting signal F. In this way, the input port judgement part 5 judges the status of the input port to read a judgement signal for voltage inspection, before implementing the inspection, thereby avoiding judgement about a voltage drop in the case of an abnormality.

17. 发明专利

JPH10252939A GAS SHUT-OFF CONTROL DEVICE 失效
公开(公告)号：JPH10252939A
公开(公告)日：1998-09-22
申请号：JP6301597
申请日：1997-03-17
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD
发明人： MATSUMOTO TAKAYUKI , MURAKAMI HIROKUNI , SATOU SOUBUN , FUJISAWA KAZUYA , SAKAI KATSUTO , NUKUI KAZUMITSU
IPC分类号： F16K17/36 , F16K31/06 , F16K37/00
摘要： PROBLEM TO BE SOLVED: To correctly detect the shut-off of the impact by discriminating the signal to be generated when a shut-off valve is closed by the impact from the noise signal. SOLUTION: When the signal to be generated by the closing and movement of a movable rod in an excitation coil 31 of a shut-off valve 10 by the impact is detected by an impact shut-off detection part 6, and the detected value is inputted in an opening/closing control part 4 as the impact shut-off detection signal, the opening/closing control part 4 makes a judgment to discriminate the impact shut-off detection signal from the noise signal based on the voltage and the pulse width of the inputted signal, and the malfunction by the noise is eliminated. When the impact shut-off is judged, the impact shut-off condition is determined by detecting the closing condition by a valve opening/closing judging part 5, and the impact shut-off is alarmed and indicated to a valve opening/closing indication part 8.

18. 发明专利

JPH09292051A SELF-HOLDING TYPE GAS SHUT OFF VALVE 失效
公开(公告)号：JPH09292051A
公开(公告)日：1997-11-11
申请号：JP10209296
申请日：1996-04-24
申请人： TOKYO GAS CO LTD , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , KANEKO ISAO , NAKAMURA MITSUHIRO , SATOU SOUBUN , FUJISAWA KAZUYA , SATOU NORITOMO , SOMA KOTARO
IPC分类号： F16K31/06
摘要： PROBLEM TO BE SOLVED: To dispense with facilities for manufacturing process and manufacturing environment cleaning and high accuracy by exciting a coil, driving a plunger on the main valve seat side by a latch mechanism, and driving a movable valve on the main valve seat side by a main compression spring. SOLUTION: When a coil 9 is excited, a plunger is once moved downward by a magnetic circuit formed out of a plunger 6, a first yoke 7, a second yoke 8, and a pole piece 13. By next demagnetization, it is moved upward by the force of a main compression spring 5. Then, the upper end side of a hook 24 is moved in a cam groove 23, so as to close the device. Under this condition, the main compression spring 5 is elongated, and a main valve rubber 21 is contacted with the underside of a main valve seat 1, so as to shut off a gas passage. Under this condition, the coil is excited again, demagnetized after moving the plunger 6 downward, the hook 24 is moved in the cam groove 23, so as to open the device. This is repeated at a fixed time. This can be operated only by supplying exciting energy to the coil, and it dispenses with facilities for highly accurate manufacturing process and cleaning environment.

19. 发明专利

JPH09269081A SELF-RETAINING TYPE CUT-OFF VALVE 失效
公开(公告)号：JPH09269081A
公开(公告)日：1997-10-14
申请号：JP7859896
申请日：1996-04-01
申请人： TOKYO GAS CO LTD , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , NAKAMURA MITSUHIRO , SATOU SOUBUN , FUJISAWA KAZUYA , NAKAZAWA HARUO , SUGIURA MASARU
IPC分类号： F16K31/06 , F16K31/08
摘要： PROBLEM TO BE SOLVED: To prevent fluid from being penetrated into a part beyond the bottom of a cylindrical guide body, by forming the cylindrical guide body having an electromagnet to have a bottom, and arranging the bottom of the cylindrical guide body at near the other end of a plunger. SOLUTION: A guide body 21 is formed into a bottomed cylindrical shape by using a non-magnetic material such as brass, the opening side one end of the guide body 21 is retained to a frame body 64, the other end thereof is closed by a bottom 211, and a magnetic pole 62 is oppose to a permanent magnet 22 sandwiching the bottom 211 of the guide body 21, and fixed on the inner surface side of the bottom 211. A minor protective film in such an extent that prevents weak oxidation by atmosphere, is used for a protective film applied to the permanent magnet 22. Fluid 9a is prevented from being penetrated into a part beyond the bottom 211 of the guide body 21 by the bottom 211 of the guide body 21, a seal body mounted at near an end which becomes the opposite side of a valve element 71 in the conventional case is no more required, and metal whose material characteristics are stable for a long time is used for sealing the fluid 9a in the end instead of the conventional rubber seal and so on, thereby the long reliability of the performance of a seal can be remarkably improved.

20. 发明专利

JPH09280386A SHUT-OFF VALVE WITH PILOT MECHANISM 失效
公开(公告)号：JPH09280386A
公开(公告)日：1997-10-28
申请号：JP8866696
申请日：1996-04-11
申请人： TOKYO GAS CO LTD , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , NAKAMURA MITSUHIRO , SATOU SOUBUN , SATOU NORITOMO
IPC分类号： F16K1/18 , F16K1/44 , F16K15/18 , F16K17/04 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To reduce an operating energy in a shut-off valve having a pilot mechanism driven by a battery cell in order to extend a lift of the battery cell. SOLUTION: A position of a sub-valve seat 32a arranged at a main valve element 32 acting as a pilot mechanism is displaced from its center and a force F required by a plunger 3 to open a sub-valve is reduced by a lever. A sub-valve arm 39 used as the lever may also act as the sub-valve element, the arm 39 is turnably attached to an arm fixing hole 38c arranged near the end part of a main valve element pressing member 38 held at the main valve element 32 with a fixing pin 39a, the other end is biased by a sub-spring 36 arranged between it and a hook section 38b arranged near the other end of the main valve element pressing element 38 and its intermediate section is connected to a slide pin of the plunger 3. As the sub-valve arm 39 is formed as a leaf spring, it is possible to eliminate the sub-spring 36.

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