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91. 发明专利

JPS5947218B2 JPS5947218B2 - 失效
公开(公告)号：JPS5947218B2
公开(公告)日：1984-11-17
申请号：JP2210075
申请日：1975-02-22
申请人： Noritsu Kk
发明人： NAKAYAMA FUMIO
IPC分类号： F24H1/00 , F23N1/08 , F24H9/20 , G05D9/00

92. 发明专利

JPS58173335A WATER HEATER 失效
公开(公告)号：JPS58173335A
公开(公告)日：1983-10-12
申请号：JP5509182
申请日：1982-04-01
申请人： NORITSU KK
发明人： NAKAYAMA FUMIO
IPC分类号： F24H1/10 , F23N1/08
摘要： PURPOSE:To provide a water heater which prevents a fluctuation in temperature of a supplied hot water through control of an amount of fuel supplied in accordance with a change in a water quantity, and has an excellent temperature characteristic. CONSTITUTION:With a hot water feed faucet 4 opened, a water flow stream is caused in a water feed path 2, a detecting temperature of a heat sensitive element 9 falls as a result of absorption of heat by passage of water, and a detecting output starts to decrease. Through detection of said reduction in the detecting output, a gas proportioning valve 7 is opened to fire a gas burner 5. After the gas burner 5 is fired, the detecting output of the heat-sensitive element 9 and a detecting output of a heat-sensitive element 10 are inputted to a comparator 11 by which they are compared and computed. Such comparing output is amplified by an amplifier 8 to input it to the gas proportioning valve 7, and the combustion amount of the gas burner 5 is controlled in proportion to a water quantity to maintain temperature of feed hot water in a specified temperature to set.

93. 发明专利

JPS5892749A FORCED-DRAFT TYPE TAP-CONTROLLED WATER HEATER 失效
公开(公告)号：JPS5892749A
公开(公告)日：1983-06-02
申请号：JP19014081
申请日：1981-11-26
申请人： NORITSU KK
发明人： NAKAYAMA FUMIO
IPC分类号： F24H1/14 , F23N5/20 , F24H9/20
摘要： PURPOSE:To prevent temperature fall in outgoing hot water during the initiation of a second supply by a method wherein pre-purge is omitted when hot water is supplied for the second time before the expiration of a prescribed period of time following the end of the preveous supply of hot water. CONSTITUTION:In a forced-draft type tap-controlled water heater 1 provided with a fan 4 and a burner 3 directly ignited by an igniter 6, when a water-flow switch 7 to detect the supply of water to a heat exchanger 2 is turned ON for the first hot-water supply, the fan 4 is started for a pre-purge lasting several seconds, and then a gas solenoid valve 5 opens and the igniter 6 goes into action to ignite the burner 3. For a second supply of hot water within a certain period of time after a stoppage of the supply of hot water, the water-flow switch 7 is turned ON for the simultaneous activation of the fan 4, igniter 6, solenoid valve 5, for the ignition of the burner 3 without a pre-purge.

94. 发明专利

JPS5885052A ONE BOILER TWO CIRCUIT TYPE HOT-WATER SUPPLYING DEVICE WITH ADDITIONAL HEATING DEVICE 失效
公开(公告)号：JPS5885052A
公开(公告)日：1983-05-21
申请号：JP18398281
申请日：1981-11-16
申请人： NORITSU KK
发明人： KUROSAKI KOUICHI , SHIMIZU MINORU , HAMACHIKA YUKARI , NAGASAWA YOSHIFUMI , TSUKAMOTO YASUSHI , NAKANISHI SHINYA , SUGIURA KENZOU , HASHIMOTO TETSUO
IPC分类号： F24H1/00 , F24D19/10 , F24H1/10
摘要： PURPOSE:To improve the handleability thereof by a method wherein the device is switched to water supplying immediately without stopping the combustion thereof in case the water supplying is effected during the additional heating while the combustion is stopped once after stopping the water suopplying and the combustion is returned to the condition of the additional heating after starting a circulating pump. CONSTITUTION:Upon the additional heating of a bath, when an additional heating switch 34 is put ON, combustion air is supplied to a combustion chamber 6 by the operation of a fan 46, a water switch 25 is put ON simultaneously by the operation of the circulating pump 26 and the combustion of a gas burner 7 is started. When the hot- water supplying is effected by opening a hot-water supplying cock 21 during this additional heating, the supply of electricty to the pump 26 is cut through a pump driving circuit by putting another water switch 13 ON, however, the supply of electricity to a combustion control circuit in a controller 8 is continued successively and switching into hot-water heating is effected continuously. Thereafter, when the hot-water supplying is stopped, the supply of electricity to the combustion control circuit 58 is cut by putting the water switch 13 OFF, however, the electricity is supplied again after the re- starting of the circulating pump 26 and the additional heating may be started.

95. 发明专利

JPS5833050A FORCED DRAFT COMBUSTION TYPE GAS WATER HEATER 失效
公开(公告)号：JPS5833050A
公开(公告)日：1983-02-26
申请号：JP8625881
申请日：1981-06-03
申请人： NORITSU KK
发明人： KUSUDA KATSUHIRO , SUGA TOSHIKI , KAWAMI ISAO
IPC分类号： F23N5/24 , F23N5/14 , F24H1/10 , F24H9/20
摘要： PURPOSE:To stop the combustion of the titled water heater when abnormality of a servomotor is detected by a method wherein the combustion is stopped when the time set for a timer which operates at the time of energization of an air quantity controling servomotor and which is reset at the time of deenergization of same is up. CONSTITUTION:The temperature of hot water detected by a heat sensitive element 14 is compared to a set temperature by a proportional circuit and the difference between two temperatures is amplified to control the coil 12 of a gas proportional valve 10 and at the same time, it is inputted to a servo-circuit so as to be compared to the value of the opening degree of a damper 17 (at the air intake port of a fan 3) detected by potentiometer 19 whereby the opening degree of the damper 17 is adjusted by the servomotor 19. Further, a CR timer A is provided in an abnormality detecting circuit so that when the servomotor 19 is energized, a photo-diode is operated to make a photo-transistor conductive, the timer A is started when the transistor becomes non-conductive and when the supply of electric current to the servomotor 19 is not interrupted within a predetermined time, a comparator is reversed to generate a signal to a safety operation circuit after the predetermined time has lapsed, to thereby stop the combustion of the water heater.

96. 发明专利

JPS5831249A PROPORTIONAL CONTROL TYPE WATER HEATER 失效
公开(公告)号：JPS5831249A
公开(公告)日：1983-02-23
申请号：JP13081581
申请日：1981-08-19
申请人： NORITSU KK
发明人： HIDAKA KATSUHIRO , KAWAI KENJI
IPC分类号： F23N1/08
摘要： PURPOSE:To obtain hot water having desired temperature at all times by mounting a water-quantity regulator interlocked with hot-water temperature setting operation and a water-temperature sensing valve controlling the quantity of flowing water in response to the temperature of entering water. CONSTITUTION:A proportional solenoid valve 4 fitted to a gas supply path 3 to a burner 1 is controlled by comparing the resistance of the thermo-sensitive resistance element 6 of a hot-water discharge path 5 and resistance value set by means of a hot-water temperature setting dial 7. A flowing-water quantity limit mechanism 9 consisting of the water-quantity regulator 13 turned by means of a servomotor 12 interlocked with the operation of the dial 7 and the water- temperature sensing valve 17 in which a valve body 15 adjusts the opening of a valve hole 16 through the expansion and contraction of a wax thermostat 14 is mounted.

97. 发明专利

JPS5640024A AUTOMATIC IGNITOR 失效
公开(公告)号：JPS5640024A
公开(公告)日：1981-04-16
申请号：JP11537279
申请日：1979-09-08
申请人： NORITSU KK
发明人： TAMURA HAJIME , YAMASHITA HIROSHI , INOSE HIDEO
IPC分类号： F23N5/10
摘要： PURPOSE:To provide an automatic igniting apparatus, capable of carrying out all of the igniting procedures from ignition to main combustion by the so-called ''one- touch'' operation, by opening or closing an ignition safety valve and a main valve forcibly for a predetermined while at the initial stage after ignition in association with the operation of a lagging means comprising a piston and a cylinder. CONSTITUTION:In igniting a burner, when a handle shaft 24 is turned from its stop position while being depressed, a pressure receiving piece 25 of a rod 14 is pushed by a cam 26 at an intermediate position of shaft 24, which causes displacement of a piston 13. At the same time, a main valve 9 is closed by a lever 20 and a safety valve 4 is pushed open by a valve rod 10. At the instant, spark is emitted by a spark ignitor 36 for igniting gas issued from a pilot burner 6. When cam 26 comes out of engagement with piece 25 after turning of shaft 24 is completed, a lagging means 11 starts its lag resetting operation and a check valve 17 is closed. Resultantly, piston 13 is caused to slide in a cylinder 12 and valve rod 10 is shifted to the right by rod 14 and lever 20. Then, after removing depression of safety valve 4, a main valve port 8 is opened.

98. 发明专利

JPS5623628A WATER FLOW DETECTING DEVICE IN PRIORRSTOPPAGEETYPE INSTANTANEOUS WATER HEATER 失效
公开(公告)号：JPS5623628A
公开(公告)日：1981-03-06
申请号：JP9857079
申请日：1979-07-31
申请人： NORITSU KK
发明人： HIDAKA KATSUHIRO , MAEDA HIROMICHI
IPC分类号： F23N1/08 , F24D17/00 , F24H1/10 , F24H9/20
摘要： PURPOSE:To enable the continuous supply of hot water of high temperature by a method wherein a control valve is provided in direct connection with a diaphragm and thus a switch for opening and closing a gas valve is maintained surely in the ON state even when the quantity of water is small. CONSTITUTION:A control valve 15 having a plantain-lily like valve disc 16 on a diaphragm 6 is provided. And, the quantity of water (the minimum operational quantity of water) at the point of time when the top part A of the valve disc 16 comes to one end part B of a valve orifice 13 is set, at the time when the control valve 15 moves, starting from the beginning of watering, while the ON-OFF point of a microswitch 20 being set so that the ON-OFF is switched when the top part A passes the valve orifice 13. By this, at the beginning when the watering is started, the control valve 15 continues to move beyond the ON point of the switch 20 and then reaches a stable position, if the watering quantity is more than the set quantity even a little. Therefore, the switch 20 is stabilized in the area of ON having a sufficient way left to the OFF point.

99. 发明专利

JPS55103174A FLOW CONTROLLER OF GAS DEVICE 失效
公开(公告)号：JPS55103174A
公开(公告)日：1980-08-07
申请号：JP1088279
申请日：1979-01-31
申请人： NORITSU KK
发明人： MATSUMOTO ISAMU
IPC分类号： F16K31/126
摘要： PURPOSE:To improve safety of a gas device with slow ignition, by interlocking a governor valve of pressure regulator with a slow igniter having an actuating shaft which is slowly separated from the valve in the ''open'' direction and quickly shifted to the valve in the ''close'' direction. CONSTITUTION:As a valve is opened upstream, gas flows in a primary pressure chamber 8 from a gas inlet valve 2 and further in another pressure chamber 12 through a communicating hole 21, because a governor valve 5 is pressed by a spring 17 to close its valve port 4. Then the back pressure of an auxiliary diaphragm 13, caused by a rise in gas pressure, forces an auxiliary valve 15 to close its valve port 19. As the gas pressure rises further, a diaphragm 10 is displaced to the left against the spring 17 and the governor valve 5 opens its valve port 4. Since this opening action is slow due to the limited gas flow in the communicating hole 21, ignition is slow, whereas gas in the pressure chamber 12 is discharged through the auxiliary valve 15 in case of gas interruption and an actuating shaft 14 is quickly moved in the ''close'' direction.

100. 发明专利

JPS5577662A GAS HEATER FOR BATH WITH BATH TEMPERATURE CONTROL 失效
公开(公告)号：JPS5577662A
公开(公告)日：1980-06-11
申请号：JP15071978
申请日：1978-12-05
申请人： NORITSU KK
发明人： MIMURA YUTAKA
IPC分类号： F23N1/00 , F24H1/00 , F24H9/20
摘要： PURPOSE:To facilitate remote control by opening the switch parallel to the thermo- switch only during principal burning and closing the said switch during the operations such as additional burning. CONSTITUTION:A thermo-switch 4 for detecting water temperature in the heat exchanger 1 by a heat-sensor bar 3 is connected in series to a thermocouple 16 and the coil 17 of a safety valve 15, while the auxiliary on/off switch 18 is connected in parallel to the thermo-switch 4 so that said switch 18 is turned on or off by a rotary cam 8 at the end of the shaft of the remote control handle 7. A remote control wire 9 is connected to a shaft 19 which performs the operation for opening or closing the gas valve opening/closing mechanism 10. The handle 7 closes the auxiliary on/off switch 18 in the pilot ignition step a, pressure releasing step b for releasing pressure to the safety valve 15 and preliminary heating step c in which the main valve 13 is opened, and closes said switch 18 only in the principal heating step d which succeeds the preliminary heating step c. Thus, the all steps are accomplished by a rotating operation alone.

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