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1. 发明专利

JPH06101834A COMBUSTION DEVICE 失效
公开(公告)号：JPH06101834A
公开(公告)日：1994-04-12
申请号：JP25121592
申请日：1992-09-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAMURA MASASHI , TSUKAHARA HIDEYUKI , YAMAGUCHI HIROSHI , NAKAZAWA OSAMU , KONDO MASAJI , IWASAKI NOBUHIRO
IPC分类号： F23N5/12
摘要： PURPOSE:To prevent a detection fault from being caused by forming an SiO2 oxide film, which is formed of organic silicon contained in a hair conditioner, on a flame detecting electrode rod for examining a burning condition in a combustion device. CONSTITUTION:Grooves 13b are made in a surface of an electrode rod 13 for flame detection. Since silicon does not enter the grooves, SiO2 oxide film is not formed therein, so that flame can enter the grooves to permit ionic current to flow, thereby enabling detection of flame.

2. 发明专利

JPH0626617A LIQUID FUEL COMBUSTION DEVICE 失效
公开(公告)号：JPH0626617A
公开(公告)日：1994-02-04
申请号：JP18243592
申请日：1992-07-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAKAMI YOJI , OTSUTA KATSUHISA , NAKAJIMA SHINJI , IWASAKI NOBUHIRO
IPC分类号： F23D11/10 , F23C5/00 , F23D11/02 , F23D11/40 , F23D11/44 , F23L15/00
摘要： PURPOSE:To prevent a high frequency noise at a combustion cylinder from being generated by a method wherein a partition plate forming a spacing of closed structure is arranged within the combustion cylinder while being opposed against a burner head and then the closed spacing is communicated with an inside part of a combustion chamber through a plurality of small holes. CONSTITUTION:A partition plate 28 is fixed to an inner surface of a rear part 20b of a cylinder and its height is located at a height opposing against a burner head. The partition plate 28 is provided with a plurality of small holes 28a and further it has ear pieces 28b bent substantially in a horizontal direction at its upper and lower portions. A longitudinal recessed hole 20e arranged at a rear part 20b of the cylinder near a connecting part 20d is located at a position displaced by about 90 deg. in respect to a center of the combustion cylinder 20 against the partition plate 28. During combustion, a primary flame formed within the combustion cylinder 20 is vibrated and a pressure variation may occur within the combustion cylinder 20 due to this vibration, although the pressure variation is accommodated under a presence of the closed spacing formed by the partition plate 28 and the recessed hole 20e. Thus, occurrence of noise of high frequency caused by the pressure variation is prevented.

3. 发明专利

JPH051662A ELECTROMAGNETIC PUMP FOR LIQUID FUEL COMBUSTION DEVICE 失效
公开(公告)号：JPH051662A
公开(公告)日：1993-01-08
申请号：JP15422691
申请日：1991-06-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAKAMI YOJI , IWASAKI NOBUHIRO , MORITA SEIJI
IPC分类号： F04B17/04 , F02M37/00
摘要： PURPOSE:To let an expandable filter hardly come off out of the suction port joint of the electromagnetic pump of a liquid fuel combustion device as well as to ventilate the inside of the expandable filter. CONSTITUTION:Projections 2b on which the inner surface of the opening section of an expandable filter 3 is hanged down, are provided for the side surface of the suction port joint 2a of an electromagnetic pump 2. And let one out of the projections be a projection 2c slender in the longer direction of the suction port joint in such a way that a gap 2e for venting air is formed between the expandable filter and the suction port joint. By this constitution, the expandable filter is thereby made to hardly come off by means of the projections. In addition, air is vented through a gap formed at both the sides of the slender projection, and this constitution thereby eliminates the air intake action of the electromagnetic pump.

4. 发明专利

JPH04353303A LIQUID FUEL COMBUSTION APPARATUS 失效
公开(公告)号：JPH04353303A
公开(公告)日：1992-12-08
申请号：JP12930891
申请日：1991-05-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAKAMI YOJI , IWASAKI NOBUHIRO , MORITA SEIJI
IPC分类号： F23D11/02 , F23D11/40
摘要： PURPOSE:To obtain a liquid combustion apparatus which can be efficiently produced, by improving the capability of being processed and assembled and reducing the number of parts. CONSTITUTION:Brims 35a and 35b are formed at both ends of an opening of a flame stabilizer ring 35 by means of drawing process, and a mounting flange 27a of a burner head 27 and the brim 35b of the flame stabilizer ring 35 are fixed together on an evaporator 1 by screws 34. Therefore, the shape of a flame stabilizer ring 35 is simplified, leading to a reduction in processing cost. In addition, as the burner head 27 is fixed together with the flame stabilizer ring 35, a conventional holding plate is not required, resulting in cost reduction.

5. 发明专利

JPH04309705A LIQUID FUEL COMBUSTION DEVICE 失效
公开(公告)号：JPH04309705A
公开(公告)日：1992-11-02
申请号：JP7629491
申请日：1991-04-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： IWASAKI NOBUHIRO , MORITA SEIJI , SHINOHARA YUKIO , MURAKAMI YOJI , FUTAMI BUNKICHI
IPC分类号： F23D11/10 , F23D11/02 , F23D11/44
摘要： PURPOSE:To prevent intermittent occurrence of gasification sound under a weak combustion of liquid fuel or pulsation of combustion flame by a method wherein a double structure having a thermal insulation layer is formed at a connection part with a gasification chamber in an oil feeding pipe and a projecting part extending into the gasification chamber in the oil feeding pipe is formed with a storing part for the liquid fuel. CONSTITUTION:Liquid fuel is continuously fed from an oil feeding pipe 5 into a gasification chamber 2 and gasified by heat transmitted through a gasification device. In the aforesaid arrangement, an air layer 5c is formed between an outer pipe 5a and an inner pipe 5b in an oil feeding pipe 5. An upper end of the outer pipe 5a is projected up to a central part of the gasification chamber 2 and a gasification member 31 is abutted against an outer diameter part of the projecting part. In addition, the outer pipe 5a is constructed such that its inner diameter at its upper end is expanded from a position where the inner pipe 5b is fixed and a storing part 32 is formed. In turn, an oil feeding pipe 14 is connected to a lower part of the oil feeding pipe 5. The inner pipe 5b is thermally insulated with the air layer 5c to prevent fuel from being gasified within the oil feeding pipe 5 and at the same time pulsation of combustion flame is prevented at the storing part 32.

6. 发明专利

JPH0476301A LIQUID FUEL BURNER 失效
公开(公告)号：JPH0476301A
公开(公告)日：1992-03-11
申请号：JP18759690
申请日：1990-07-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： IWASAKI NOBUHIRO , MORITA SEIJI , MURAKAMI YOJI
IPC分类号： F23D11/02 , F23D11/44
摘要： PURPOSE:To prevent the fuel from being vaporized in a supply fuel pipe and supply in the state of liquid phase the fuel to a proper vaporization section by constructing the section of connection of a supply fuel pipe to a carburetor in a double pipe construction and providing an intermediate layer between the inner pipe and outer pipe and connecting the inner pipe to the section of the outer pipe where the temperature is low. CONSTITUTION:A supply fuel pipe 5 is constructed in a double construction which has an inner pipe 31 and outer pipe 33, and these pipes are connected to each other at the upper ends and lower ends where the temperature is low. Because of this construction the temperature rise due to the heat from outside is kept as low as possible. Accordingly in the conditions of weak operation the fuel is not vaporized inside the inner pipe 31 and it reaches a vaporization member 32 in liquid phase. Further, between the inner pipe 31 and outer pipe 33 an intermediate layer 34 which consists of an air layer is provided and the adiabatic effect is thereby raised. Furthermore, the upper end face and the lower end face of the inner pipe 31 are airtightly connected to the outer pipe 33 so that the fuel never flows into the intermediate layer 34.

7. 发明专利

JPH0439504A LIQUID FUEL BURNER 失效
公开(公告)号：JPH0439504A
公开(公告)日：1992-02-10
申请号：JP14569190
申请日：1990-06-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUTAMI BUNKICHI , IWASAKI NOBUHIRO
IPC分类号： F23D11/02 , F23K5/04
摘要： PURPOSE:To make easy the installation in a liquid fuel burner in which an electromagnetic return pipe is installed to a solenoid valve and the valve mechanism is opened and closed by bringing up or down a needle by installing the tip end section of the return pipe directly to the valve mechanism of a solenoid valve through a sealing member. CONSTITUTION:A ring-shaped projection 26a is installed to a return pipe 26 at a suitable position from the tip end section of the return pipe 26 with the projection incorporated in the return pipe, and the tip end section of the return pipe 26 is inserted into a hole in the valve mechanism 27, and the return pipe 26 is directly installed to the valve mechanism 27 with the projection section 26a being fit tightly to the groove section 27a of the valve mechanism 27 with a tightening allowance left in the groove section 27a of the valve mechanism 27 through an O-ring 25. And, the projection section 26a is pressed down from outside by a support fitting 29 with elasticity, and this support fitting 29 is fastened by a screw to the lower section of the box body of a solenoid valve 11. With this arrangement the joining by solder is not required and the installation of the return pipe 26 becomes easy and the constitution is of low cost.

8. 发明专利

JPH0261462A HOT AIR HEATER 失效
公开(公告)号：JPH0261462A
公开(公告)日：1990-03-01
申请号：JP20953288
申请日：1988-08-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUKUNO KATSUYA , IWASAKI NOBUHIRO
IPC分类号： F24H3/06
摘要： PURPOSE:To make a heater adaptable for clean air-heating and permit it to be relocated easily by providing a heat exchanger for outside air and combustion gas with outlets exclusively for each of the heated outside air and the combustion gas and a gas-discharging unit which can be attached detachably to the outlet for the combustion gas. CONSTITUTION:A heat exchanger 11 is installed inside a casing 4; outside air 9 taken in by a blower 5 is heated by combustion gas 8 which is passed through the heat exchanger 11 and the heated outside air 9a is discharged through an outlet 12 while the combustion gas 8 is discharged through an outlet 13. Where the presence of combustion gas in the heating gas can be tolerated, the combustion gas 8 together with the heated outside air 9a, discharged through the outlets 13, 12, can be sent into the indoor space to be heated. In the case where air contamination should be avoided, a gas-discharging unit 14 is attached to the outlet 13 so that the combustion gas can be released into the ambient air, only the heated outside air 9a being sent into the room.

9. 发明专利

JPH01296050A SPACE HEATER INSTALLED OUTDOORS 失效
公开(公告)号：JPH01296050A
公开(公告)日：1989-11-29
申请号：JP12401488
申请日：1988-05-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： IWASAKI NOBUHIRO , FUKUNO KATSUYA
IPC分类号： F24H3/06 , F24H9/06
摘要： PURPOSE:To prevent the waste gas from entering into the air duct due to the rupture in the radiating section by installing a constricting pipe in the downstream side of the air duct which serves as the passage for hot air coming from a heat exchanger in order to set the pressure in the air duct higher than that of the combustion substance passing through the heat exchanger. CONSTITUTION:A constricting pipe 12 installed on the outlet side of the air duct 3 has an outlet diameter D formlated in accordance with the pressure loss calculated in advance in order to always maintain the internal pressure in the air duct 3 which is determined by the pressure loss, etc. of the overall air passages on the inlet side and the outlet side of a circulation fan 5 higher than the internal pressure of the flow passage for the combustion substance in a heat exchanger 2. A through-hole 13 drilleed in the inlet duct 6 controls the pressure fluctuation in the air duct 3 due to the disturbance such as a change in the intake air quantity. As the internal pressure in the air duct 3 is always maintained higher than that of the combustion substance in the heat exchanger 2, the waste gas of the combustion substance cannot intrude from the rupture in the radiating section.

10. 发明专利

JPS63105305A LIQUID FUEL COMBUSTION APPARATUS 失效
公开(公告)号：JPS63105305A
公开(公告)日：1988-05-10
申请号：JP25013886
申请日：1986-10-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： IWASAKI NOBUHIRO , TSUKAHARA HIDEYUKI , MESAKI MICHIO , WADA YOSHIFUMI , HANADA EIICHIRO
IPC分类号： F23D11/40
摘要： PURPOSE:To eliminate a variation of gasification of fuel with time and enable to keep a stable combustion state even in case of a weak combustion by a method wherein a surface inclined gradually from below a nozzle is arranged at the bottom part of a gasification cylinder. CONSTITUTION:Since the bottom surface of a gasification cylinder 14 is made as a gradual inclined surface, even if liquid fuel supplied from a fuel supplying needle 1 is dripped onto the bottom surface of the gasification cylinder 14 while its particle diameter being left large, the fuel is gradually and continuously gasified in the midway of sliding down the inclined surface and thus a stable combustion state having no variation even in case of weak combustion is maintained. Since the bottom surface of the gasification cylinder 14 is made as a helical form, both a distance and a time for sliding down of the fuel are elongated, with the result that the fuel is gasified more positively. When the gasified combustion gas is ignited, secondary air passes through a secondary air supplying port 18 and a cylinder 15 and is supplied to a flame, thereby a more complete ignited flame can be attained.

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