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1. 发明专利

JPH0422450A LIQUID JET NOZZLE 失效
公开(公告)号：JPH0422450A
公开(公告)日：1992-01-27
申请号：JP12722890
申请日：1990-05-17
申请人： NIPPON UPRO KK , TOTO LTD , KIYOURITSU GOUKIN SEISAKUSHIYO
发明人： BANDO SEIJI , ISHIZAKA KUNIHIKO , YASUNAGA SHIGEFUMI , HAMADA YASUO , NAKAMURA YUZURU , ARIMATSU MASAHITO , ASAKAWA HIROYOSHI , KIO YOSHIYUKI , NISHIDA HIROICHI
IPC分类号： B05B1/30 , B05B1/34
摘要： PURPOSE:To obtain a nozzle not lowered in injection capacity even when an injection amount is altered and controlled to a large extent by providing a reduced pressure flow path supplying the liquid from a supply path to a revolving chamber while making the pressure thereof than the supply pressure in the supply path to a leading end part. CONSTITUTION:The leading end part 3a of a flow path forming member 3 is allowed to enter the conical revolving chamber-forming hole 2a of a nozzle forming body 2 and pressed to the nozzle forming body 2 by the clamping force of a supply and discharge member 5 to form a revolving chamber R. The kerosene supplied from a liquid supply pipe 6 under pressure through a filter 4 and the liquid supply path 8 formed by the liquid supply and discharge member 5 is supplied to the revolving chamber R under pressure by slitted supply paths 9. The kerosene from the supply paths 9 are revolved in a spiral state within the revolving chamber R to be injected from the jet orifice 10 of the nozzle forming body 2 in a mist form. As a result, an injection amount can widely be controlled.

2. 发明专利

JPH04155150A TEMPERATURE AND FLOW RATE CONTROLLER OF HOT-WATER SUPPLY APPARATUS 失效
公开(公告)号：JPH04155150A
公开(公告)日：1992-05-28
申请号：JP28025190
申请日：1990-10-17
申请人： TOTO LTD , NIPPON UPRO KK
发明人： KOBATA YUKIO , BANDO SEIJI , ISHIZAKA KUNIHIKO , YASUNAGA SHIGEFUMI
IPC分类号： F24H1/10
摘要： PURPOSE:To produce hot water at an adequate temperature and diminish the temperature fluctuation by a method wherein a water supply pipe and hot-water supply pipe of a heat exchanger are connected by a bypass pipe, a combined function valve is mounted at the junction of the hot-water supply pipe, a bypass on-off valve is able to mix water with hot water discharged from a heat exchanger, and a flow control valve is capable of adjusting the delivery flow rate of hot water. CONSTITUTION:A water supply pipe 25 and a hot-water supply pipe 28 of a hot-water supply apparatus A are connected by a bypass pipe, and a combined function valve E, in which a bypass on-off valve C and a hot-water flow control valve D are combined, is mounted at the junction of the hot-water supply pipe 28. An arc-like bypass groove 51 is provided around the circumference of a valve stem 46 of the combined function valve H, facing a bypass inlet port 43. The arc-like bypass groove 51 and the bypass inlet port 43 form the bypass on-off valve C, and an arc-like mixed water groove 53 and a mixed water outlet port 44 form the hot-water flow control valve D. A portion of water in the water supply pipe 25 is fed into the hot-water supply pipe 28 through the bypass pipe, so that the flow rate of water supplied to the heat exchanger 24 is reduced and high temperature water is delivered to the hot-water supply pipe 28. Water is mixed with the high-temperature water and hot water at an adequate temperature is produced with less fluctuation H in the temperature.

3. 发明专利

JPH0432607A METHOD OF DRIVING FUEL FLOW RATE REGULATING VALVE OF HOT WATER MAKER 失效
公开(公告)号：JPH0432607A
公开(公告)日：1992-02-04
申请号：JP13944290
申请日：1990-05-29
申请人： TOTO LTD , NIPPON UPRO KK
发明人： BANDO SEIJI , YASUNAGA SHIGEFUMI , HAMADA YASUO
IPC分类号： F23N1/00
摘要： PURPOSE:To make the valve body develop vibration which is enough to prevent faulty operations and hysteresis and at the minimum limit and regulate fuel flow rate exactly and prevent the generation of vibration noises and pulsating combustion sounds by superposing an alternating current on the direct current which drives a solenoid flow rate regulating valve. CONSTITUTION:A drive circuit D is constituted of a rectification circuit (r) which rectifies the alternating current form a commercial power source into a direct current, smoothing circuit F which removes ripples in the rectified direct current, D/A converter DA which converts the drive signal from the control section C into voltage and outputs it, power transis tor Tp, voltage reducing device At which reduces the voltage of the commercial power, and a comparator CO, and it generates a direct current 11 which drives the solenoid flow rate regulating valve FC by the frive signal from the control section C and at the same time superpose a pulse wave 12 with the same frequency as that of the commercial power line on the direct current 11 to output electric current. Namely, it can give vibration to the advancing and retreating rod 47 of the valve body and a spherical valve body 45 and prevent faulty operations and hysteresis between the applies electric current and the operation of the spherical valve body 45 that is caused by the wear resistance, etc. between the advanc ing and retreating rod 47 of the valve body which develops when the solenoid flow rate regulating valve FC is driven by direct current.

4. 发明专利

JPH02275251A BURNER CHAMBER FLOW REGULATING PLATE STRUCTURE IN HOT WATER FEEDER 失效
公开(公告)号：JPH02275251A
公开(公告)日：1990-11-09
申请号：JP9556989
申请日：1989-04-14
申请人： TOTO LTD , KAWASAKI STEEL CO , NIPPON UPRO KK
发明人： ISHIKURA OSAMU , BANDO SEIJI , FUJIWARA ZENJI , TAKIMOTO SHIGEMI
IPC分类号： F24H9/02
摘要： PURPOSE:To prevent a disturbed flow of air and further to enable an efficient supplying of air required for a combustion of gas to be carried out by a method wherein a plurality of long holes along a burner case are positioned between each of the burner cases. CONSTITUTION:Several long holes 21 along burner cases (g) are arranged to be positioned between each of the burner cases (g) at a flow regulating plate (f) for partitioning between an upper part of a primary air supplying passage s-1 and a secondary air supplying passage s-2 arranged in an air supplying case (c). Air blown from the long holes 21 is supplied along a shape of the longitudinal holes 21 in a flat form, blown upwardly along a wall acting as an outer surface of the burner case (g), flows between the adjoining flames, it blows up a base end of the flame expanded from below and a disturbed flame is not produced and further an air supplying to the burner chamber (b) is sufficiently carried out.

5. 发明专利

JPH07269943A FIN FOR HEAT EXCHANGER AND PROCESSING METHOD THEREOF 失效
公开(公告)号：JPH07269943A
公开(公告)日：1995-10-20
申请号：JP5869194
申请日：1994-03-29
申请人： SUZUKI IRON WORKS , NIPPON UPRO KK , TOTO LTD
发明人： IWASAKI KEIZO , BANDO SEIJI , TAKIZAWA TAKASHI , KAWACHI NOBORU , MUNEMURA HIROSHI
IPC分类号： F24H1/00
摘要： PURPOSE:To positively join heat exchanger tubes to each other, enhance a thermal efficiency and prevent dangerous phenomenons such as boiling or the like by forming acutely angled edge portions provided on both sides of communicating portions of the two heat exchanger tubes and adjacent through holes. CONSTITUTION:When two heat exchanger tubes 12, 13 to be connected to different flow passages are closely contacted with each other in parallel and are adhered to a multiplicity of common fins 11 by brazing to form a single can and dual circuit type heat exchanger, through holes 30, 31, through which the two heat exchanger tubes 12, 13 extend, are made circular in cross section to have substantially the same diameter as the outer diameter of the heat exchanger tubes 12, 13 which extend through the common fins 11, and closely contacting portions of the heat exchanger tubes 12, 13 are made to overlap and communicate to each other. Formed on both sides of communicating portions 32 are acutely angled edge portions 33, 34 which are interposed between adjacent circular arcs 30a, 31a of the both through holes 30, 31. Accordingly, it is possible not only to enhance adhesion strength of the heat exchanger tubes 12, 13 to maintain and improve a required thermal efficiency but also to prevent danger of boiling.

6. 发明专利

JPH04155109A PROPORTIONAL COMBUSTION BURNER SYSTEM IN KEROSENE TYPE HOT WATER MAKER 失效
公开(公告)号：JPH04155109A
公开(公告)日：1992-05-28
申请号：JP28024890
申请日：1990-10-17
申请人： TOTO LTD , NIPPON UPRO KK
发明人： KOBATA YUKIO , BANDO SEIJI , ISHIZAKA KUNIHIKO , YASUNAGA SHIGEFUMI
IPC分类号： F23N1/00 , F23D11/24 , F23D11/26
摘要： PURPOSE:To manufacture a combustion burner system at a low cost by connecting the initial end of a going oil pipe of other burner to a point downstream of the pump of a basic burner and connecting the final end of the returning oil pipe of the other burner to a point upstream of a flow rate regulating valve of the returning oil pipe of the basic burner. CONSTITUTION:The branch pipe S2 of the going oil pipe of a gun type burner G2 has its initial end connected to the down stream side of an electromagnetic pump P of the branch pipe S1 of the going pipe of the basic gun type burner G1, and, on the other hand, the returning oil pipe R2 of the gun type burner G2 has its final end connected to the upstream side of a flow rate regulating valve FC of the returning oil pipe R1 of the basic gun type burner G1. Further, at an intermediate position of the going oil pipe S2 of the gun type burner G2 a solenoid valve D2 is provided and a solenoid valve D3 is provided to the returning oil pipe R2. It is, therefore, possible to share a single pump P and flow rate regulating valve FC even if the number of the gun type burner G1 or G2 is plural, and since it is not required that the electromagnetic pump P and flow rate regulating valve FC are provided to respective gun type burners G1, G2, a proportional combustion burner system can be manufactured at a low cost.

7. 发明专利

JPH02275254A AIR SUPPLYING STRUCTURE OF HOT WATER FEEDER 失效
公开(公告)号：JPH02275254A
公开(公告)日：1990-11-09
申请号：JP9556889
申请日：1989-04-14
申请人： TOTO LTD , KAWASAKI STEEL CO , NIPPON UPRO KK
发明人： ISHIKURA OSAMU , BANDO SEIJI , FUJIWARA ZENJI , TAKIMOTO SHIGEMI
IPC分类号： F24H9/02
摘要： PURPOSE:To improve an air supplying efficiency, enable a reduction of noise and further improve a gas combustion efficiency by a method wherein an air blower fan constructed to cause an air supplying direction to reach a substantially central part of a hot water feeder case, a partition plate for parting from an air supplying port position a primary air feeding passage communicating with a manifold and a secondary air supplying passage communicating with a burner chamber and a secondary air supplying passage communicating with a burner chamber are provided. CONSTITUTION:An air supplying case (c) is constructed such that an air supplying port (d) continuously provided with an air blowing port 9 of an air blower fan 1 for use in supplying air is opened at one side end of a lower plate 8 so as to cause air from the air supplying port (d) to be fed to a burner chamber (b) and a manifold (a) through an air supplying case (c). A partition plate (e) is arranged over an opening of the air supplying port (d), and thus the primary air supplying passage s-1 and the secondary air supplying passage s-2 are formed by the partition plate (e). Air from the air blower fan 1 reaches the air supplying port (d), the air is completely branched by the partition plate (e), the air is divided into the primary air supplying passage s-1 and the secondary air supplying passage s-2 and at the same time the air is blown toward the substantially central part of the air supplying case (c), resulting in that the air flows at a central part of each of the air supplying passages s-1 and s-2, respectively, and a loss of air supplying pressure can be reduced, a sufficient air can be supplied and the generation of a noise can be prevented.

8. 发明专利

JPH04113156A COMBUSTION CONTROL OF HOT WATER SUPPLY HEATER 失效
公开(公告)号：JPH04113156A
公开(公告)日：1992-04-14
申请号：JP23203190
申请日：1990-08-31
申请人： TOTO LTD , NIPPON UPRO KK
发明人： HAMADA YASUO , ARIMATSU MASAHITO , BANDO SEIJI , YAMAGUCHI HIDEKATSU
IPC分类号： F24H1/10
摘要： PURPOSE:To control a heating value and maintain a preset temperature by making constant a switch over cycle between combustion time and non- combustion time when required thermal load is smaller than a minimum heating value and changing the amount of fuel supply during combustion. CONSTITUTION:In a hot water supply oil heater A, a required thermal load to maintain a preset temperature is calculated by the output from a water capacity sensor 26, a water temperature sensor 27 and a hot water supply set point station setter 31. When the required thermal load is smaller than a minimum heating value which enables a burner 20 to continue stabilized combustion, intermittent combustion is adapted to take place in order to comply with the required thermal load. More specifically, combustion and non-combustion must be carried out without the continuous combustion of the burner 20. It is, therefore, possible to maintain the temperature of supply hot water at the preset value by fixing a switch over cycle between combustion and non-combustion, carrying out feed-forward control of a flow rate control valve FC based on the required thermal load computed at a control section M, and adjusting the amount of petroleum to be fed to the burner 20 during combustion.

9. 发明专利

JPH03282111A DAMPER IN BURNER FOR CHANGE-OVER OF AIR FLOW CHANNEL 失效
公开(公告)号：JPH03282111A
公开(公告)日：1991-12-12
申请号：JP8568290
申请日：1990-03-30
申请人： TOTO LTD , NIPPON UPRO KK
发明人： BANDO SEIJI , YAMAGUCHI HIDEKATSU , NAKAMURA YUZURU
IPC分类号： F23L13/04
摘要： PURPOSE:To carry out adjustment of the volume of air to each flow channel without generating vibration sounds by rotating a plate provided with a through-holes and matching those through-holes to the throughholes in a fixed plate which communicate with respective air flow channels in the main body of a cylindrical burner and sending air through the matched through-holes and constituting so as to pressure-weld a movable plate to the fixed plate. CONSTITUTION:A damper C for change-over of air flow channel is provided at the connecting section of the main body of a cylindrical burner and an air sending cylinder 12, and at the rear of the main body of the cylindrical burner a disc shaped fixed plate 40 incorporated in the main body is provided with fan-shaped through-holes 4a-40c 180 deg. apart and symmetrically which communicate respectively with a primary air flow guide cylinder 28, secondary air flow channel 31, and tertiary air flow channel 33, and a movable plate 41 is provided with through-holes of an irregular shape 41a-41c 180 deg. apart and symmetrically, and through- holes 4la and 41b are provided on the same radius, and the through-hole 4lc is provided in the circumferential direction which is perpendicular to those throughholes, and between the through-holes 41b and 41c a plurality of auxiliary through-holes 41d of small circle shape are provided. And, in the connecting hole 41g at the central section of a movable plate 41a a boss 55 to which the output shaft 54 of a rotating motor 42 is installed is inserted and the boss has a spring 59 attached to it and it energizes the movable plate to the side of the fixed plate.

10. 发明专利

JPH02275253A AIR FEEDING STRUCTURE OF HOT WATER FEEDER 失效
公开(公告)号：JPH02275253A
公开(公告)日：1990-11-09
申请号：JP9556689
申请日：1989-04-14
申请人： TOTO LTD , KAWASAKI STEEL CO , NIPPON UPRO KK
发明人： ISHIKURA OSAMU , BANDO SEIJI , FUJIWARA ZENJI , TAKIMOTO SHIGEMI
IPC分类号： F24H9/02
摘要： PURPOSE:To enable a pressure loss of supplied air to be reduced and a gas combustion efficiency to be improved by a method wherein an air blowing direction of an air blower fan is directed toward a substantial central part of an air supplying case at a lower part of a hot water feeder and the air is uniformly supplied from the fan from the substantially central part at the lower portion of the hot water feeder toward a primary air supplying passage and a secondary air supplying passage, respectively. CONSTITUTION:An air supplying port flange d' is arranged at a circumferential edge of an air supplying port (d) formed in a slant manner in compliance with an inclination of the air supplying port (d). An air feeding port flange formed at a circumference of the air supplying port (d) of a fan case 10 is integrally fixed to this air supplying port flange d', thereby an air blowing fan 1 is inclined against a flow regulating plate. An air blowing direction from the air blower fan 1 is directed toward a substantially central part of an air supplying case (c), so that a blown air strikes against the substantially longitudinal direction of the flow regulator plate (f), the air is dispersed there, and uniformly distributed over an entire flow regulating plate (f), the air is filled in the primary air supplying flow passage s-1 and the secondary air supplying passage s-2 and then the air is supplied uniformly through a connection hole 17, an aeration hole 19 and a longitudinal hole 21 or the like.

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