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1. 发明专利

JPH11325595A HYDRAULIC PRESSURE RESPONDING APPARATUS 失效
公开(公告)号：JPH11325595A
公开(公告)日：1999-11-26
申请号：JP13933198
申请日：1998-05-21
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： KAWAGUCHI TAKAFUMI , NISHIMURA HIROYUKI , MATSUBARA HIDEKI , MOTOIKE MASUO , HYODO TAKAHIKO , SAWADA MITSUO
IPC分类号： F24H1/10
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic pressure responding apparatus for facilitating an associating work with a reduction in a manufacturing cost. SOLUTION: The hydraulic pressure responding apparatus comprises a diaphragm 11 for dividing a hydraulic pressure chamber into primary and secondary sides in the state that an opening 13 of an apparatus body 12 is closed with a cover 14 to respond to a differential pressure between a hydraulic pressure of a water of the primary side flowing into a primary side hydraulic pressure chamber from an inlet provided at the body 12 and flowing out from an outlet 18 and a bypass port and a hydraulic pressure of a water of the secondary side flowing into and out of the secondary side hydraulic pressure chamber from a flowing port provided at the cover 14, and a mixing member 25 provided connectibly to the bypass port 19 to mix the water from the primary side chamber via the port 19 with hot water flowing from a hot water flowing port in such a manner that the cover 14 and the member 15 are formed of an integral molding B made of a synthetic resin.

2. 发明专利

JP2000146172A ABNORMALITY DETECTION DEVICE FOR COMBUSTION APPARATUS 失效
公开(公告)号：JP2000146172A
公开(公告)日：2000-05-26
申请号：JP31711798
申请日：1998-11-09
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , HYODO TAKAHIKO , SAWADA MITSUO
IPC分类号： F23N5/24 , F23D14/08
摘要： PROBLEM TO BE SOLVED: To provide an abnormality detection apparatus capable of surely detecting an abnormality of combustion as a whole burner even if spider nests are formed in one of two mixed gas supply parts or a mixed gas flow passage communicating with them or dust is accumulated. SOLUTION: In an abnormality detection device for a combustion apparatus having a burner B provided with mixed gas supply parts for supplying a mixed gas at both end parts in a row direction of a row of burner ports in a mixed gas flow passage communicating with the burner ports, combustion flame temperature detection means 17a, 17b for detecting temperatures of combustion flames of the burner B and an abnormality detection means C for detecting an abnormality of combustion of the burner B on the basis of detection information of the combustion flame temperature detection means 17a, 17b, the combustion flame temperature detection means 17a, 17b are installed at both sides in a center in a longitudinal direction of the row of the burner ports.

3. 发明专利

JP2000146165A FAULT DETECTOR FOR COMBUSTION EQUIPMENT 失效
公开(公告)号：JP2000146165A
公开(公告)日：2000-05-26
申请号：JP31711898
申请日：1998-11-09
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , HYODO TAKAHIKO , SAWADA MITSUO
IPC分类号： F23N5/24 , F23N5/02
摘要： PROBLEM TO BE SOLVED: To provide a fault detector for a combustion equipment capable of effectively detecting a combustion fault caused by an exhaust blocking even in the case of the exhaust blocking at either end side of both longitudinal ends of a cylindrical body and preventing a detection fault caused by adherence of soot as much as possible. SOLUTION: In the fault detector for a combustion equipment comprising a combustion chamber temperature detecting means 25 provided on an upper part of a flat cylindrical body 1 for forming a combustion chamber of a burner B by a heat exchanger 2 to be heated by the burner B to detect an ambient temperature in the chamber, and a fault detecting means C for detecting a combustion fault of the burner B based on detection information of the means 25, the means 25 is provided at a center or substantially a center of a section of the body 1 in a longitudinal direction.

4. 发明专利

JP2000028114A GAS BURNER 失效
公开(公告)号：JP2000028114A
公开(公告)日：2000-01-25
申请号：JP19263698
申请日：1998-07-08
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , HYODO TAKAHIKO , SAWADA MITSUO
IPC分类号： F23D14/08
摘要： PROBLEM TO BE SOLVED: To provide a gas burner capable of performing a comparatively stable combustion to control generation of CO gas even if one of two mixed gas passage is blocked with a spider web or the like. SOLUTION: A gas burner wherein a bottomed cylindrical burner body 23 is constituted by bending and bonding both end peripheries of plate-shaped member disposed opposite to one another, a bottomed box body 24 capable of being inserted in an opening of the burner body 23 is provided, and in the state of being inserted, a row of burner ports 28 arranged in line in a longitudinal direction of the opening is formed between a longitudinal side inner face of the opening and a longitudinal side outer face of the box body 24 located opposite to it, a mixed gas passage communicating with the row of the burner ports 28 is formed between a bottom D of the burner body 23 and a bottom E of the box body 24 and a mixed gas supply part 20a for supplying a mixed gas is formed in both end parts in the direction of the row of the burner ports 28 in the mixed gas passage is constituted in such a manner that the bottom D of the burner body 23 and the bottom E of the box body 24 are brought into contact with, or nearly into contact with each other in a central part in the direction of the row of the burner ports 28 in order to suppress passage of the mixed gas.

5. 发明专利

JPH11337173A GAS WATER HEATER 失效
公开(公告)号：JPH11337173A
公开(公告)日：1999-12-10
申请号：JP14104598
申请日：1998-05-22
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , SAWADA MITSUO , HYODO TAKAHIKO
IPC分类号： F24H9/20 , F24H1/10
摘要： PROBLEM TO BE SOLVED: To detect the incomplete combustion of a gas burner more accurately. SOLUTION: This water heater is provided with a relatively high voltage output of thermocouple 3 which detects the combustion state of a gas burner 1, and a relatively low voltage output of heat exchanger 4 which detects the inside temperature of a heat exchanger 2. The output of both thermocouples 3 and 4 is inputted separately into filter circuits 21 and 22 so as to remove higher harmonic components. An operating part 24 seeks the difference being obtained by subtracting the output voltage of the filter circuit 22 from the output voltage of the filter circuit 21. A combustion state judger 24 judges that the gas burner 1 is in incomplete combustion when the output of the operating part 23 becomes smaller than the specified threshold, and shuts off the safety valve 15 supplying the gas burner with fuel gas.

6. 发明专利

JPH0579703A HOT WATER SUPPLYING DEVICE 失效
公开(公告)号：JPH0579703A
公开(公告)日：1993-03-30
申请号：JP23917391
申请日：1991-09-19
申请人： HARMAN CO LTD
发明人： HYODO TAKAHIKO , SAWADA MITSUO , SATO KENJI
IPC分类号： F24H9/00
摘要： PURPOSE:To improve the operability of a hot water supplying device by providing a heat insulating protection cover around the outer circumference of a hot water delivery device. CONSTITUTION:In the casting B2 of a hot water delivery device provided at the end section of a hot water supplying pipe 3 with manually operated indicating devices 44, 50 that indicate a change in the state of supply hot water, the hot water channel spreads on the whole of the casing, and the temperature of the casing is prone to become high. On the outer surface of the second easing B2 a protection cover 29 made of polypropylene is placed. There is a gap between this protection cover 29 and the second casing B2, and this gap forms an air layer for heat insulation. This protection cover 29 is ring-shaped, and it is provided with a port for see-saw button 50 and air vent hole. And, respective casings B1, B2, and B3 are connected by screws, and the position of the protection cover 29 is positioned by its abutting to the first casing B1 and third casing B3.

7. 发明专利

JPH0333572A FLOW REGULATING DEVICE 失效
公开(公告)号：JPH0333572A
公开(公告)日：1991-02-13
申请号：JP16747589
申请日：1989-06-29
申请人： HARMAN CO LTD
发明人： SAWADA MITSUO
IPC分类号： F16K17/34
摘要： PURPOSE:To obtain a simple flow regulating device not requiring an electrical control system but capable of suppressing sudden flow increase by providing a cylindrical flow passage with a simple mechanical structure comprising a flow resistor, an energizing means, a throttle mechanism, a throttle limit specifying means, and the like. CONSTITUTION:In the state of the supply of gas being stopped, a flow resistor 3 under the energization of a spring 8 is placed in the initial position of being in contact with an upstream side boss part 6a. When the switching valve of a gas feed pipe 1 is opened, the longitudinal differential pressure of a flow resistor 3 becomes suddenly large with the starting of gas flow, and the flow resistor 3 is thereby displaced largely toward the downstream side against the energizing force of the spring 8. Accompanied by this displacement, a throttle mechanism 9 throttles a flow passage. Afterwards, when the longitudinal differential pressure of the flow resistor 3 is gradually lowered from the sudden increase as the gas flow state is stabilized, the flow resistor 3 performs reset action toward the upstream side by the energizing force of the spring 8 so as to be placed in the balanced position, and accompanied by this reset action, the throttle of the flow passage by the throttle mechanism is released.

8. 发明专利

JPH02178562A HOT WATER FEEDER 失效
公开(公告)号：JPH02178562A
公开(公告)日：1990-07-11
申请号：JP33363688
申请日：1988-12-28
申请人： HARMAN CO LTD
发明人： TANIMURA YOSHITAKA , SAWADA MITSUO
IPC分类号： F24H1/10
摘要： PURPOSE:To prevent a discharging of raw fuel to be caused by a returning of a hydraulic pressure responsive valve to its opened state by a method wherein a fuel valve is changed over to its closed state as the hydraulic pressure responsive valve is closed under a cooperation of a movable member. CONSTITUTION:A hydraulic pressure responsive valve 9 has a relation of cooperation with a diaphragm 6a so as to cause the valve to be closed if a water feeding pressure is lowered to a lower limit water feeding pressure value P2. When a micro-switch 12 is turned OFF as the hydraulic pressure responsive valve 9 is closed, a controller 14 is provided for changing over a solenoid fuel valve 8 to its closed state. As the water feeding pressure is lowered to a value less than the lower limit water feeding pressure value P2 during a combusting operation and shows an improper value, the hydraulic pressure responsive valve 9 is closed and the burner 2 is ignited. After this operation, even if the water feeding pressure is increased again up to a valve opening water feeding pressure P1 and the hydraulic pressure responsive valve 9 is returned to its opened state, a fuel passage 7 for the burner 2 is kept closed by the electromagnetic fuel valve 8 kept at its closed state until the water feeding pressure reaches an ON operating water feeding pressure value Pa, resulting in that it is possible to prevent a discharging of raw fuel gas caused by the returning of the hydraulic pressure responsive valve 9 to its opened state.

9. 发明专利

JP2524024B2 失效
公开(公告)号：JP2524024B2
公开(公告)日：1996-08-14
申请号：JP23917391
申请日：1991-09-19
申请人： HARMAN CO LTD
发明人： HYODO TAKAHIKO , SAWADA MITSUO , SATO KENJI
IPC分类号： F24H9/00

10. 发明专利

JPH0660765B2 失效
公开(公告)号：JPH0660765B2
公开(公告)日：1994-08-10
申请号：JP33363688
申请日：1988-12-28
申请人： HARMAN CO LTD
发明人： TANIMURA YOSHITAKA , SAWADA MITSUO
IPC分类号： F24H1/10

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