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71. 发明专利

JPH1151735A CUTOFF VALVE MOUNTING STRUCTURE OF GAS METER 失效
公开(公告)号：JPH1151735A
公开(公告)日：1999-02-26
申请号：JP22578597
申请日：1997-08-06
申请人： YAZAKI CORP
发明人： KODAMA SANSHIRO , YAMASHITA TOMIISA
IPC分类号： G01F3/22 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a cutoff valve mounting structure of a gas meter in which the structure of the gas meter can be simplified. SOLUTION: The second chamber 11a housing a processing circuit 41, etc., to process a signal, etc., responsive to gas flow detected at the first chamber 11b is provided adjacently to the first chamber 11b which comprises a gas channel X communicating a gas inlet 12a and a gas outlet 12b and detects gas flow in the gas channel X. The valving means of a cutoff valve 3 formed of a valving element 34 connected to a valve actuator 32 operated according to an interruption signal from the processing circuit 41 and of a valve seat 31 formed in the gas channel X is provided in the first chamber 11b closely to the gas inlet 12a, and the valve actuator 32 is provided at a part outside the first chamber 11b and adjacent to the second chamber 11a or in the second chamber 11a with maintaining hermeticity to the first chamber 11b.

72. 发明专利

JPH1151722A GAS METER AND ITS GAS FLOW VELOCITY MEASURING TUBE 失效
公开(公告)号：JPH1151722A
公开(公告)日：1999-02-26
申请号：JP21230697
申请日：1997-08-06
申请人： YAZAKI CORP
发明人： KODAMA SANSHIRO , YAMASHITA TOMIISA , MASUDA ISAO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To regulate a distance between an ultrasonic transmitter/receiver to an optimum value and simply correct an error every tube by performing parallel displacement of an end member screwed on both the ends of a gas transmission passage in the longitudinal direction of the gas transmission passage by screw rotation. SOLUTION: A gas meter 1 introduces gas 100 from an introduction opening 105 to a chamber 101, gas flow is measured by a gas flow velocity measuring tube 2, and transmitted via a chamber 102 and a delivery opening 107. At this time, male screws 201a, 201b are arranged on both the ends of the gas transmission passage 108 of the gas flow velocity measuring tube 2 respectively, and female screws 202a, 202b screwed on the inner face side of ends 203a, 203b are screwed therewith. An ultrasonic wave is propagated in the gas transmission passage 108 by an ultrasonic transmitter/receiver 110, 111 held by holding members 204a, 204b provided on both end members to obtain measured data. In the case where the gas flow velocity measuring tube 2 is applied to a different kind of a gas meter, parallel displacement of end members 203a, 203b is performed in the longitudinal direction of the gas transmission passage 108 by screw rotation, and a distance between the ultrasonic transmitter/ receiver is regulated to an optimum value.

73. 发明专利

JP2003133757A GAS METER 审中-公开
公开(公告)号：JP2003133757A
公开(公告)日：2003-05-09
申请号：JP2001323920
申请日：2001-10-22
申请人： YAZAKI CORP
发明人： MATSUMOTO YASUHIRO , ZENITANI KIYOSHI , YAMASHITA TOMIISA , ISOBE KIMIKATSU
IPC分类号： H05K5/02
摘要： PROBLEM TO BE SOLVED: To provide a gas meter to which peripheral equipment can be attached easily and which has an excellent appearance. SOLUTION: This gas meter has a box-like main body 1 having a flowing-in port 11 and a flowing-out port 12, both of which are connected to gas piping, on its top face and a displaying section 13 which displays the amount of a gas used on its front face. The main body 1 is provided with fitting means, for example, L-shaped hooks 15a and 15b, a T-shaped hook 25, etc., to which a peripheral equipment enclosure 2 which houses the peripheral equipment of this gas meter is fitted are provided on its bottom face.

74. 发明专利

JP2002168663A FLOW-RATE MEASURING APPARATUS AND LEAKAGE DETECTOR 失效
公开(公告)号：JP2002168663A
公开(公告)日：2002-06-14
申请号：JP2000370066
申请日：2000-12-05
申请人： YAZAKI CORP , NIPPON APPLIED FLOW KK
发明人： YAMASHITA TOMIISA , NUKUI KAZUMITSU
IPC分类号： G01F1/00 , G01F1/696 , G01F3/22 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To provide a flow-rate measuring apparatus and a leakage detector, improving leakage detection accuracy, by accurately detecting gas leakages, without begin influence by the temperature of a gas. SOLUTION: A first counting means 5a-3 starts counting of a first prescribed time, while a usage judging means 5a-2 is being judged 'no'. A leakage detecting means 5a-4 detects the gas leakage, when gas pressure (hereinafter to be referred to as Pa) detected by the first counting means/gas temperature (hereinafter to be referred to as T1), detected at the counting starting time}≠ gas pressure (hereinafter to be referred to as P2) detected by the first counting means at count ending time/gas temperature (hereinafter to be referred to as T2) detected at counting ending time} is satisfied.

75. 发明专利

JP2001330532A GAS SHUT-OFF DEVICE 失效
公开(公告)号：JP2001330532A
公开(公告)日：2001-11-30
申请号：JP2000153996
申请日：2000-05-25
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOYO GASMETER CO , YAZAKI CORP
发明人： ONISHI KAORU , NIIMURA NORIO , UEKI KOICHI , HONDA GOJI , MIZUKOSHI JIRO , ISONO NOBORU , HORI FUJIO , MASUDA ISAO , YAMASHITA TOMIISA , HARADA TOSHIHIRO
IPC分类号： G01F1/00 , F17D5/06 , G01F1/66 , G01F3/22 , G01M3/00 , G01M3/24 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To provide a gas shut-off device capable of promptly detecting a leak of a medium in a supply line based on its instantaneous flow rate and capable of accurately monitoring the gas using condition. SOLUTION: A flow rate computing means 14 converts a flow velocity detected by measuring signal transmission time in the medium into a flow rate value which is compared by a leak judging means 15 with a flow rate value set by a leak amount setting means 19 to perform leakage determination. Leak duration is counted by a leak duration counting means 16. If the counted duration reaches a prescribed value, an abnormality determination means 17 determines that an abnormal gas leak exists and displays an alarm by means of an informative means 18.

76. 发明专利

JP2001208578A FLOW QUANTITY MEASUREMENT DEVICE 失效
公开(公告)号：JP2001208578A
公开(公告)日：2001-08-03
申请号：JP2000020037
申请日：2000-01-28
申请人： YAZAKI CORP
发明人： SUZUKI TOSHIHIKO , YAMASHITA TOMIISA
IPC分类号： G01F1/00 , G01F3/22 , G01F7/00
摘要： PROBLEM TO BE SOLVED: To provide a flow quantity measurement device that can measure a flow quantity in a wide range without lowering measurement accuracy. SOLUTION: A branch pass 200&Bgr; bypassed a high flow pass 205 and low flow pass 204 is placed. A change from a lower state than a flow rate set to a higher state is detected and thereafter a pilot valve 230 is opened by a pilot valve control means 3a2. Then, fluid flows from a transmission pass 224 to the downstream of a differential pressure valve 223. The differential pressure valve 223 is opened when the differential pressure between the upperstream and downstream of the fluid in the differential pressure valve 223 is produced. Also, a measured flow quantity is compensated based on the compensation value corresponding to a flow quantity of the fluid flowing through the branch pass 200 by a flow quantity measurement 3a1 when the pilot valve 223 changes to the open state, and then the compensated value is set to the flow quantity.

77. 发明专利

JP2001165744A FLOW RATE INFORMATION COLLECTION METHOD FOR GAS CUTOFF DEVICE AND GAS CUTOFF DEVICE 失效
公开(公告)号：JP2001165744A
公开(公告)日：2001-06-22
申请号：JP35074199
申请日：1999-12-09
申请人： YAZAKI CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： INUZUKA KAZUHIRO , MASUDA ISAO , HARADA TOSHIHIRO , YAMASHITA TOMIISA , NIIMURA NORIO , ASANO KAZUTAKA , UEKI KOICHI , FUJII YASUSHI
IPC分类号： G01F3/22 , F17D3/18 , F23K5/00 , F23N5/18 , F23N5/26 , G01F1/00 , G01F1/20 , G01F1/66 , G01M3/00
摘要： PROBLEM TO BE SOLVED: To facilitate cause analysis in the case of closing a cutoff valve in gas piping because of excess of measured flow rate of gas flowing in gas piping over a specific value. SOLUTION: With a gas cutoff device for cutting off gas flow in a gas flow path 3 gas flow rate per unit of time in the gas flow path 3 is measured and when the measured flow rate exceeds a specific cutoff judgment value, gas flow velocity in the gas flow path 3 is intermittently measured. Instantaneous flow rate of gas is measured by multiplying the gas flow velocity intermittently measured and the cross sectional area of the gas flow path 3. Based on the one time or a continuous plurality of times of instantaneous flow rates and the intermittent time for measuring the gas flow velocity in the gas flow path 3, flow rate per unit of time in the gas flow path 3 is measured. When the measured flow rate exceeds a primary judgment value lower than the cutoff judgment value, storing of the instantaneous flow rate in a memory means 13 capable of reading out the stored data is started. When it exceeds the cutoff judgment value, storing of the instantaneous flow rate is terminated.

78. 发明专利

JP2001165730A GAS METER 失效
公开(公告)号：JP2001165730A
公开(公告)日：2001-06-22
申请号：JP35074399
申请日：1999-12-09
申请人： YAZAKI CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMASHITA TOMIISA , MASUDA ISAO , HARADA TOSHIHIRO , SUGIMOTO YUJI , NIIMURA NORIO , ASANO KAZUTAKA , UEKI KOICHI , FUJII YASUSHI
IPC分类号： G01F3/22 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a gas meter capable of effectively making the completion of air purging known and capable of efficiently performing air purging work. SOLUTION: A gas meter consists of a propagation time measuring means A for measuring the signal propagation time in a gas flow channel, a flow rate operation means 17 for calculating a flow rate on the basis of the propagation time data from the propagation time measuring means A to integrate the calculated flow rate, a proparation time memory means 18 for preliminarily storing the signal propagation time of gas and a judge means 19 comparing the propagation time data from the propagation time measuring means A with the propagation time value from the propagation time memory means 18 to judge whether the propagation time data coincides with the propagation time value and an alarm sound means 21 emitting an alarm sound when it is judged that the propagation time data coincides with the propagation time value by the judge means 19.

79. 发明专利

JPH11241936A GAS METER 失效
公开(公告)号：JPH11241936A
公开(公告)日：1999-09-07
申请号：JP4380798
申请日：1998-02-25
申请人： YAZAKI CORP
发明人： YAMASHITA TOMIISA
IPC分类号： G01F3/22 , F17D1/04 , G01F15/18
摘要： PROBLEM TO BE SOLVED: To provide a gas meter conformable to vertical and horizontal piping forms and piping forms having different outlets with a single type by constituting a base part so as to be movable. SOLUTION: This gas meter has a base part 1 for connection of piping to a meter body A mounted thereon. The base part 1 has a piping side cylindrical part 1a and a meter-side cylindrical part 1b which are allowed to communicate each other in L-shape. The meter-side cylindrical part 1b is turnable mounted on the case 5 of the meter body A around an axial center C, so that the position of the base part 1 can be varied according to the piping form.

80. 发明专利

JPH1153637A GAS USABLE RESIDUAL TIME CONVERTING AND DISPLAY METHOD USED FOR GAS SUPPLY CONTROL SYSTEM AND THE GAS SUPPLY CONTROL SYSTEM 失效
公开(公告)号：JPH1153637A
公开(公告)日：1999-02-26
申请号：JP21227097
申请日：1997-08-06
申请人： YAZAKI CORP
发明人： HARADA TOSHIHIRO , MASUDA ISAO , YAMASHITA TOMIISA
IPC分类号： G07F7/08 , G07F15/06
摘要： PROBLEM TO BE SOLVED: To eliminate a feeling of uneasiness that a gas appliance user has by converting the residual amount of usable gas into a residual usable gas time and displaying the residual usable gas time. SOLUTION: The gas supply control system 1 is constituted including a gas meter inspection unit 2 and a gas supply control unit 3 having a residual usable time calculating function for calculating the residual usable gas time from the residual usable gas and a residual usable time display function for displaying the found residual usable gas time. This system finds gas consumption per unit time in advance. The residual usable gas amount written to a prepaid card is read out and converted into a residual usable gas time according to the found gas consumption per unit time and the read residual usable gas amount, so that the converted residual usable gas amount is displayed.

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