KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION (Japon)
Inventeur(s)
Ito, Takashi
Okano, Yuka
Yoshida, Mahoko
Iwama, Yuko
Yamada, Tomomi
Umeda, Yojiro
Shimabukuro, Daisuke
Hayashi, Junya
Akita, Naoshige
Yamada, Kengo
Abrégé
In a cooking system (100), a cooking control part (52) has a terminal communication part (57) that performs one-to-one communication with each of first through third communication parts (17, 27, 37A, 37B). The first communication part (17) sends a state of a heating part (11) ascertained by a heating control part (12) to the terminal communication part. The second communication part (27) sends detection results from a first state sensor (26) to the terminal communication part. The third communication part (37A, 37B) sends detection results from a second state sensor (36A, 36B) to the terminal communication part. Based on the information received by the terminal communication part, the cooking control part generates and sends a cooking command for the heating part from the terminal communication part to the first communication part. The heating control part controls the cooking (heating) based on the cooking command.
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
Provided is a totally aerated combustion burner that has good lift resistance regardless of fuel gas types and can use both hydrocarbon gas and hydrogen gas as fuel gas. The totally aerated combustion burner is provided with: a burner body (1) that has an air-fuel mixture chamber (11) which is supplied with an air-fuel mixture of fuel gas and primary air; and a combustion plate part (2) that covers an open surface of the burner body, facing the air-fuel mixture chamber. The combustion plate part includes: a frame-shaped burner framework (21); a sintered body sheet (23) which covers an opening part of the burner framework from the burner body side and which is obtained by sintering a laminate having metal fibers laminated therein; and a distribution plate (24) which, together with the burner framework, sandwiches the sintered body sheet and which has formed therein a large number of slit-shaped distribution holes (24a). A plurality of distribution hole rows comprising a plurality of distribution holes arranged at intervals in the Y-axis direction, which is the short direction of the distribution holes, are arranged side by side in the X-axis direction, which is the long direction. The slit width is set in a range of 0.3-0.6 mm, and the slit pitch is set in a range of 6-10 mm.
F23D 14/74 - Dispositifs de sécurité, p. ex. fonctionnant en cas d'interruption de l'alimentation en gaz pour éviter le décollage de flamme
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
A water heater (1) includes a housing (8), combustion devices (31, 32), heat exchangers (41A to 42B), a water supply pipe (P1), a hot water supply pipe (P2), a water supply connection member (10), a hot water supply connection member (20), a water quantity control part (50), and a fine bubble generator (9) in fluid connection with either the water supply pipe (P1) or the hot water supply pipe (P2). The fine bubble generator (9) has an inflow port (91H), into which hot water flows from an upstream side (P2U), and an outflow port (92H), out of which hot water containing the fine bubbles is discharged to a downstream side (P2D). The fine bubble generator (9) is located below burner ports (31F, 32F) of the combustion devices.
This premixing device mixes a fuel gas with air and supplies the air-fuel mixture to a burner via a fan. A butterfly valve 8 is provided positioned on the upstream side of a gas suction section to which a downstream end of a gas supply passage is connected in an air supply passage on the upstream side of the fan, and the premixing device makes it possible to prevent, over a long period of time, the inability to ensure the amount of air required when the butterfly valve 8 is in a closed orientation. A ventilation opening 82 through which air flows from the upstream side to the downstream side of the butterfly valve 8 when in the closed orientation is formed in the butterfly valve 8. In addition, a protrusion 84 protruding in the thickness direction of the butterfly valve 8 is provided positioned on a side surface 83 of the butterfly valve 8 in a part of the area around the ventilation opening 82 on the upstream side when the butterfly valve 8 is in an open orientation.
A premixing device provided with a butterfly valve 62 driven by a stepping motor 621 in an air supply passage 6 includes a detection means 9 composed of a magnet 91, a magnetic switch 92, and a magnetic shielding plate 93 rotating together with the butterfly valve, the premixing device being configured so that when the butterfly valve enters a rotation range between an open position and a predetermined state close thereto, the magnetic switch is turned on. Even if a malfunction occurs in which the butterfly valve is locked within the rotation range where the magnetic switch is turned off just before the butterfly valve reaches a closed position, this malfunction can be detected. The butterfly valve 62 is rotated from the close position to the open position to ascertain the number of steps of the stepping motor 621 when the magnetic switch 92 is switched from off to on. If the number of steps is deviated by a predetermined value or more from the reference number of steps required for rotating the butterfly valve 62 from the close position to the predetermined position, it is determined that an abnormality is present.
This premixing device comprises: a variable throttle valve 74 which is driven by a stepping motor 743 and a zero governor provided in a gas supply passage; and a detection means 747 which detects the movement of a valve body 742 of the variable throttle valve. The detection means has a detection switch 7471, which is turned on when the valve body of the variable throttle valve enters a first stroke range on the closing side and which is turned off when the valve body enters a second stroke range on the opening side, and is set to be able to accurately detect a failure in the variable throttle valve. After the valve body 742 of the variable throttle valve 74 is moved to the stroke end position in the closing direction to determine the origin, the valve body 742 is moved in the opening direction. When the number of steps of the stepping motor 743 at a time point when the detection switch 7471 is switched from on to off as a result of the movement is deviated, by a predetermined value or more, from a reference number of steps required for movement from the origin position to entering the second stroke range, it is determined that an abnormality is occurring.
F23K 5/00 - Alimentation en d'autres combustibles ou distribution d'autres combustibles pour les appareils à combustion
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
This heating and cooking apparatus HC is provided with an apparatus body 1 that has: an upper storage chamber 12 having an opening part 11 above and capable of storing a cooking container Kt through the opening part; and a lower storage chamber 13 communicating with the upper storage chamber and in which a burner Bn is disposed. The apparatus is configured to suppress overflow to the outside of the apparatus body as much as possible, even if hydrogen flame propagates to an introduction passage 4 for introducing secondary air, when hydrogen gas jetted from a combustion plate 3 of the burner is subjected to diffusion combustion. The introduction passage is provided with a flame shielding part 6 for flame-shielding the hydrogen flame when the hydrogen flame propagates in the introduction passage while allowing ventilation of the secondary air.
This heating cooker HC comprising a cooker main body having an upper storage chamber 12, which has an opening 11 on top and in which a cooking container Kt can be stored through the opening, and a lower storage chamber 13, which communicates with the upper storage chamber and in which a burner Bn is disposed, is configured to uniformly heat the cooking container by equalizing the heights of hydrogen flames from a combustion plate 3 of the burner even in a state where the amount of hydrogen gas jetting from each part of the combustion plate 3 is not uniform when performing diffusion combustion of the hydrogen gas jetting from the combustion plate 3. Introduction passages 4 for introducing secondary air are provided, the introduction passages each having: an intake port 41, which opens in an outer surface of an outer wall part of the cooker main body surrounding the lower storage chamber; and a discharge port 42, which opens in an inner surface of the outer wall part. The plurality of introduction passages are provided at intervals in the circumferential direction in a plan view.
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
F23D 14/84 - Diffusion de la flamme ou autres moyens pour lui donner une forme particulière
A hot water system comprising a heat pump and a storage portion. The hot water system being unitary or modular and configured to allow a user to easily connect and disconnect parts. A heat pump and heat exchanger for the hot water system, the heat pump comprising a base under which the heat exchanger is mounted and the heat exchanger comprising a spirally wound coil. The heat pump configured to sit on top of the storage portion. A method of controlling the heat pump and a heating element associated with the storage portion.
A hot water system comprising a heat pump and a storage portion. The hot water system being unitary or modular and configured to allow a user to easily connect and disconnect parts. A heat pump and heat exchanger for the hot water system, the heat pump comprising a base under which the heat exchanger is mounted and the heat exchanger comprising a spirally wound coil. The heat pump configured to sit on top of the storage portion. A method of controlling the heat pump and a heating element associated with the storage portion.
F24H 9/02 - EnveloppesCouvercles de protectionPanneaux décoratifs
F24H 9/14 - Raccordement de sections différentes, p. ex. dans les chauffe-eau
F24H 9/20 - Disposition ou montage des dispositifs de commande ou de sécurité
F25B 30/02 - Pompes à chaleur du type à compression
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
A hot water system comprising a heat pump and a storage portion. The hot water system being unitary or modular and configured to allow a user to easily connect and disconnect parts. A heat pump and heat exchanger for the hot water system, the heat pump comprising a base under which the heat exchanger is mounted and the heat exchanger comprising a spirally wound coil. The heat pump configured to sit on top of the storage portion. A method of controlling the heat pump and a heating element associated with the storage portion.
A hot water system comprising a heat pump and a storage portion. The hot water system being unitary or modular and configured to allow a user to easily connect and disconnect parts. A heat pump and heat exchanger for the hot water system, the heat pump comprising a base under which the heat exchanger is mounted and the heat exchanger comprising a spirally wound coil. The heat pump configured to sit on top of the storage portion. A method of controlling the heat pump and a heating element associated with the storage portion.
Provided is a combustion device comprising a burner which has a burner body and a combustion plate 12, and a combustion housing which surrounds a combustion space for an air-fuel mixture, said combustion device being provided with a thermal insulation material 7 which overlaps a portion of a combustion plate flange 122 at a peripheral edge of the combustion plate, said portion facing the internal space of the combustion housing, wherein a fixing plate 8 for the thermal insulation material is attached to the combustion plate flange, said fixing plate having a bent edge portion 81 that abuts the outside lateral edge of the thermal insulation material, and having a plurality of tongue-shaped retaining hooks 82 that retain the thermal insulation material and extend from the bent edge portion. With said combustion device, it is possible to prevent overheating of a central portion of the combustion plate flange due to the transfer of combustion heat via the fixing plate. The interval between retaining hooks 82, 82 that are adjacent to one another in the longitudinal direction of the fixing plate 8 is made wider towards a central portion of the fixing plate 8 in the longitudinal direction. When a plurality of notches 81b are formed in the bent edge portion 81 so as to leave behind a plurality of support pieces 81a, the support pieces 81a may be made narrower towards the central portion of the fixing plate 8 in the longitudinal direction.
F23D 14/14 - Brûleurs à rayonnement utilisant des écrans ou des plaques perforées
F23D 14/76 - Dispositifs de sécurité, p. ex. fonctionnant en cas d'interruption de l'alimentation en gaz protégeant la flamme et des éléments du brûleur
This premixing device includes: a butterfly valve 6 and a switching valve 7 that switch the ventilation resistance of an air supply passage 2 and a gas supply passage 3; and an interlocking mechanism 8 that is connected to a rotary shaft 61 of the butterfly valve 6 and that opens and closes the switching valve 7 in conjunction with opening and closing of the butterfly valve 6. The interlocking mechanism 8 is disposed in a mechanism chamber 11 which is partitioned by a partition part 14 with respect to the air supply passage 2 and communicates with a downstream end part of the gas supply passage 3, and a shaft support hole 141 through which the rotary shaft 61 penetrates is formed in the partition part 14. Outside air enters into the shaft support hole 141 due to a pressure difference between an internal pressure of the air supply passage 2 and an internal pressure of the mechanism chamber 11, and the rotary shaft 61 is prevented from being fixed in the shaft support hole 141 by corrosion caused by salt contained in the outside air. A seal member 142 that seals a gap between the shaft support hole 141 and the rotary shaft 61 is provided in a section close to the air supply passage 2 of the shaft support hole 141.
By detecting the potential of a housing of an electrical device before and after a voltage for detection is applied to the housing, it is determined whether or not the potential of the housing increases by applying the voltage for detection. If the potential of the housing increases by applying the voltage for detection, it is determined that a ground fault, in which a ground wire is in conduction with the housing, is not occurring. Conversely, if the potential of the housing does not increase when the voltage for detection is applied, it is determined that a ground fault is occurring. Thus, the presence or absence of a ground fault in an electrical device can be easily detected.
A combustion device is provided in which an air-fuel mixture is supplied to a burner (1) via a fan (2), the combustion device being equipped with a gas amount adjustment means (44) for adjusting the fuel gas supply amount, a first flame rod (6), and a control means (5). In the combustion device, control is performed to regulate the fuel gas supply amount with the gas amount adjustment means (44) so that an excess air ratio of the air-fuel mixture obtained on the basis of a flame resistivity detected with the first flame rod (6) becomes a predetermined appropriate value. The combustion device is configured so that both the ability to detect an excess air ratio of the air-fuel mixture and the ability to detect ignition (presence or absence of flame) can be ensured. A second flame rod (7), which is different from the first flame rod (6), is disposed. The presence or absence of a flame is detected with the second flame rod (7), and the first flame rod (6) is used exclusively for detecting an excess air ratio of the air-fuel mixture.
F23N 5/24 - Systèmes prévenant le développement de conditions anormales ou indésirables, c.-à-d. dispositifs de sécurité
F23N 1/02 - Régulation de l'alimentation en combustible conjointement au réglage de l'amenée d'air
F23N 5/12 - Systèmes de commande de la combustion utilisant des dispositifs sensibles aux variations thermiques ou à la dilatation thermique d'un agent utilisant des éléments sensibles à l'ionisation, c.-à-d. des électrodes de flamme
This roast cooking device comprising a burner 4 and an ingredient placement part 2 provided above the burner is configured to be capable of further improving the effect of washing down residual fat and salt from ingredients placed above the ingredient placement part. Hydrogen gas is used as a fuel gas to be supplied to the burner, and a water discharge means 6 has, below the ingredient placement part, a water discharge part 61 which discharges water composed of at least one among steam and water vapor.
A47J 27/04 - Récipients de cuisson pour la cuisson des aliments à la vapeurDispositifs pour extraire le jus des fruits au moyen de la vapeur
F23D 14/10 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion du type à induction, p. ex. becs Bunsen avec la tête de brûleur tubulaire allongée
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p. ex. avec des conduits disposés parallèlement ou se croisant
F23L 7/00 - Alimentation du foyer en liquides ou gaz non combustibles autres que l'air, p. ex. oxygène, vapeur d'eau
Provided is a ceramic cooking device comprising a burner 4 for burning hydrogen gas, and a food material placement part 2 provided above the burner, the ceramic cooking device being configured to have exceptional cooking properties such that it is possible to achieve ceramic cooking in both a state in which surface softness is imparted and a state in which surface crispness is imparted to a food material on the food material placement part. An introduction-position-varying means 6 for changing the introduction position of secondary air supplied to the burner is provided to the ceramic cooking device. When the ceramic cooking device comprises a housing 13 that surrounds a portion of the burner positioned below the food material placement part and extends downward, the introduction-position-varying means is configured from a closing change plate that is mounted to a lower-end opening 13b of the housing so as to be capable of changing a closing region of the lower-end opening.
F23D 14/10 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion du type à induction, p. ex. becs Bunsen avec la tête de brûleur tubulaire allongée
F24C 3/02 - Poêles ou fourneaux à combustibles gazeux dans lesquels la chaleur est produite uniquement par des flammes
In a heat exchanger that includes heat-absorbing fins and heat-absorbing tubes, each of which pierces through a corresponding through hole formed by a burring process, when a brazing material held by each of brazing material holding portions is positioned above a corresponding missing portion, formed by removing a part of a burring wall of each of the through holes, melts and penetrates between each of the burring walls and the corresponding heat-absorbing tube, each of the brazing material holding portions is extended above the corresponding missing portion at a predetermined distance. A notched portion concaved downward is positioned on each side of the respective brazing material holding portions.
F28F 1/42 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements les moyens étant à la fois à l'extérieur et à l'intérieur de l'élément tubulaire
An engaging part (70) of a second component (6) has an engaging claw part (71) that protrudes outward from an engaging hole (51) and engages with an engaged part (50) of a first component (4). The engaged part (50) of the first component (4) has a contact engaging band part (53) that extends along the insertion direction of the engaging part (70) from a contact surface (52) at the peripheral edge of the engaging hole (51). The contact engaging band part (53) has a through groove part (55) that extends along the insertion direction of the engaging part (70) from the contact surface (52) and penetrates through an outer surface (530) of the contact engaging band part (53).
A ceramic cooking device comprising burners 3 in which hydrogen is combusted, and a lattice-form plate body 5 provided above the burners 3, the plate body 5 filling the role of an ingredient placement portion, the ceramic cooking device making it possible to improve an effect for allowing runoff of an excess oil fraction resulting from a water fraction contained in a hydrogen combustion gas. A supporting rod part 53 between long holes 52, 52 that are formed in the lattice-form plate body 5 and are adjacent to each other has an upper-end flat part 531 with which ingredients come into contact, a maximum-width part 532 in which the Y-direction width is maximized and which is set apart below the flat part 531, and a widening part 533 in which the width gradually increases from the flat part 531 toward the maximum-width part 532. It is preferable that a narrowing part 534 in which the width gradually decreases from the maximum-width part 532 toward the lower end of the supporting rod part 53 is also provided to the supporting rod part 53.
In a hot water supply apparatus including a heat exchanger to which water heated by renewable energy or waste heat from other heat sources is supplied, a controller performs an intermittent combustion control in which combustion and combustion stoppage in a burner are repeated as a condition in which a water supply temperature exceeds a predetermined upper limit of the water supply temperature. In the intermittent combustion control, a combustion fan is caused to operate during the combustion and to at least temporarily, preferably always, operate during the combustion stoppage.
In a heat exchanger, a respective meander passage 31, 32 in each of two stages connecting heat absorbing tubes 31 divided into the two stages and arranged in a flow direction of a combustion gas in an inside of a casing 1 from one side to the other side in a Y-axis direction is constituted, and a heat absorbing tube 31 of #11 at an upstream end of the meander passage 31 in a first stage at an upstream side of the flow direction of the combustion gas and a heat absorbing tube 31 of #21 at a downstream end of the meander passage 32 in the second stage at a downstream side of the combustion gas are made to be positioned at the one side in the Y-axis direction, a ventilation resistant portion 221, 2221, 2222 for suppressing the combustion gas from being directed to the heat absorbing tube 31 of #21 at the downstream end of the meander passage 32 in the second stage is provided.
F24H 3/08 - Appareils de chauffage d'air à circulation forcée l'air étant maintenu séparé de l'agent chauffant, p. ex. par circulation forcée de l'air sur des radiateurs par tubes
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
F28F 1/32 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et s'étendant transversalement les moyens ayant des parties engageant d'autres éléments tubulaires
In a heat exchanger, a respective meander passage 31, 32 in each of two stages connecting heat absorbing tubes 31 divided into the two stages and arranged in a flow direction of a combustion gas in an inside of a casing 1 from one side to the other side in a Y-axis direction is constituted, and both a heat absorbing tube 31 of #11 at an upstream end of the meander passage 31 in one of the stages and a heat absorbing tube 31 of #21 at a downstream end of the meander passage 32 in the other of the stages are made to be positioned at the one side in the Y-axis direction, a distance La between the heat absorbing tubes 31, 31 of #11 and #21, is made longer than a respective distance Lb between each heat absorbing tube 31 other than the heat absorbing tube 31 of #11 at the upstream end of the meander passage 31 in the one of the stages and such each heat absorbing tube 31 other than the heat absorbing tube 31 of #21 at the downstream end of the meander passage 32 in the other of the stages as is the closest to each heat absorbing tube 31 other than the heat absorbing tube 31 of #11 at the upstream end in the one of the stages.
F28F 9/013 - Supports auxiliaires pour les éléments pour les tubes ou les assemblages de tubes
F28F 1/10 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements
F28F 9/00 - CartersBoîtes de distributionSupports auxiliaires pour les élémentsÉléments auxiliaires dans les carters
In a heat exchanger, a respective meander passage 31, 32 in each of two stages connecting heat absorbing tubes 31 divided into the two stages and arranged in a flow direction of a combustion gas in an inside of a casing 1 from one side to the other side in a Y-axis direction is constituted, and both a heat absorbing tube 31 of #11 at an upstream end of the meander passage 31 in a first stage and a heat absorbing tube 31 of #21 at a downstream end of the meander passage 32 in a second stage are made to be positioned at the one side in the Y-axis direction, notches are provided with each heat absorbing fin 2 at portions positioned at a more upstream side in the flow direction of the combustion gas than each heat absorbing tube 31 of the meander passage 32 in the second stage, and first notches 221 corresponding to the heat absorbing tube 31 at a downstream end of the meander passage 32 in the second passage are formed larger than second notches 222 corresponding to each heat absorbing tube 31 other than the heat absorbing tube 31 of #21 at the downstream end.
F28F 9/00 - CartersBoîtes de distributionSupports auxiliaires pour les élémentsÉléments auxiliaires dans les carters
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
F28F 1/32 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et s'étendant transversalement les moyens ayant des parties engageant d'autres éléments tubulaires
The present invention provides a heating system capable of implementing an inrush current countermeasure without causing an increase in cost. A control means of the heating system repeatedly executes, in a predetermined cycle, a sequence starting operation of the fluid flowing part, the predetermined cycle being divided into a plurality of operation start permitted intervals, and the operation start permitted intervals permitting, among the fluid flowing part, only a specific fluid flowing part determined for each operation start permitted interval, to start operating, and prohibiting the other fluid flowing part other than the specific fluid flowing part from starting to operate.
A connected combustion system detects a failure in any of combustors connected in the system and each including a burner with its combustion state used for feedback. Each combustor includes a combustion sensor that detects the combustion state in the burner, and a detection value is used for feedback. When the detection value deviates from a predetermined normal range, at least one of a fuel gas supply or an air supply is corrected to cause the detection value to be within the normal range. The combustion state in the burner is thus adjusted. When the combustion sensor in any of the combustors has a detection value deviating from the normal range and the combustion sensor in another combustor operating simultaneously with the above combustor has a detection value within the normal range, the combustor having the detection value deviating from the normal range is determined to have a failure.
F23R 3/16 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par la configuration du flux d'air ou du flux de gaz avec des dispositifs à l'intérieur du tube à flamme ou de la chambre de combustion pour influer sur le flux d'air ou de gaz
F23R 3/28 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par l'alimentation en combustible
Provided is a parameter-setting program with which it is possible for a plurality of combustion devices to efficiently implement work for setting parameters that are necessary for operating the combustion devices. This parameter-setting program is actuated by an information terminal 50 that can perform wireless communication with combustion devices 10, the parameter-setting program being capable of causing the information terminal 50 to execute: a process for storing, in the information terminal 50 or in an external storage device, a parameter for one combustion device 10 that is inputted to the information terminal 50 when being set; a process, after the aforementioned storage, for displaying, on the information terminal 50, an option with which, when a parameter is set for another combustion device, the information terminal 50 is instructed to write the stored parameter to the other combustion device 10; and a process for writing the stored parameter to the other combustion device 10 in cases in which the option is selected.
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou pour obtenir des valeurs mesurées
F24H 15/443 - Commande des appareils de chauffage de fluides caractérisée par le type des unités de commande utilisant un traitement électronique, p. ex. par ordinateur utilisant une unité de commande centrale connectée à plusieurs sous-unités de commande
F24H 15/464 - Commande des appareils de chauffage de fluides caractérisée par le type des unités de commande utilisant un traitement électronique, p. ex. par ordinateur accessible à distance utilisant une communication sans fil
In a combustion device provided with a solenoid opening/closing valve provided on a gas supply passage for a burner and a proportional valve with a governor function on the downstream side of the solenoid opening/closing valve, there is a risk in ignition in that if the opening of the solenoid opening/closing valve is delayed due to the adherence of the valve body to the valve seat and a solenoid of the proportional valve is energized in a condition in which the gas pressure in a first pressure chamber of the proportional valve is zero, the proportional valve would open at the maximum opening degree and explosion ignition could occur; the present invention prevents this. When igniting a burner, first the control of making the solenoid opening/closing valve open is performed (STEP3) and subsequently the control of energizing the solenoid of the proportional valve so as to make the opening degree of the proportional valve to be a predetermined ignition opening degree is performed (STEP5).
Provided is an exhaust adapter capable of ensuring a high degree of airtightness between a main body and an exhaust flow guide inside the main body. An exhaust adapter 1 comprises: a main body 2 provided with an exhaust outlet 11 for discharging combustion exhaust from a combustion device 30; an exhaust flow guide 3 which is provided inside the main body and which connects an exhaust pipe of the combustion device to the exhaust outlet; an exhaust flow passage portion 5 which constitutes a portion of the exhaust flow guide and which includes a flange 14 provided on an outer peripheral edge of an opening portion 13 that communicates with the exhaust outlet; packing 15 held in a compressed state between the flange of the exhaust flow passage portion and a main body inner surface of an outer peripheral portion of the exhaust outlet; and a sliding guide portion 18 which is provided on a main body inner surface and which is in pressure contact with an outer surface of a closing portion 16, which is a wall opposing the opening portion of the exhaust flow passage portion. A concave arcuate portion 18a that is inclined increasingly toward the exhaust outlet side with increasing distance from a distal end side toward a base end side is formed in the sliding guide portion, and in the exhaust flow passage portion, an outer surface of the closing portion is formed with a convex arcuate surface 16a, and the exhaust flow passage portion is fixed to the main body in a state in which the convex arcuate surface has been pushed in along the concave arcuate portion of the sliding guide portion.
An exhaust port member 7 comprises an inflow port 811 into which combustion exhaust gas flows, an exhaust port 77 through which the combustion exhaust gas is discharged to the outside, an exhaust passage P through which the combustion exhaust gas flows from the inflow port 811 toward the exhaust port 77, and a space portion 9 which is adjacent to a downstream end exhaust passage portion Pz located on a downstream end of the exhaust passage P, with a separating wall 781 defining the downstream end exhaust passage portion Pz interposed therebetween, wherein: the space portion 9 has an upstream side opening portion 90 on an upstream side thereof; the combustion exhaust gas flowing through the exhaust passage P flows from the upstream side opening portion 90 into the space portion 9; and the space portion 9 is closed other than at the upstream side opening portion 90.
Provided is an exhaust adapter with which it is possible to remove a front cover of a combustion device without removing the exhaust adapter even if the exhaust adapter is attached to the combustion device. An exhaust adapter 1 comprises: a box-like main body 2 which comprises a side wall 6 and an upper wall 7 and which is open downward; an exhaust outlet 11 which opens in the side wall 6 of the main body 2 and which discharges combustion exhaust; an exhaust coupling portion 4 which is provided inside the main body 2 and which is connected to an exhaust pipe 40 of a combustion device 30; an exhaust flow passage portion 5 which is provided inside the main body 2 and which is connected from the exhaust coupling portion 4 to the exhaust outlet 11; a cut-out portion 20 provided over a prescribed height and a prescribed width from a lower edge of the side wall 6 of the main body 2, in the side wall 6 on a front side on which a front cover 34 of the combustion device 30 is located; and a front lid 8 that covers the cut-out portion 20 in an openable and closable manner.
A heated cooking device (HC) comprises a burner (3) in which a plurality of flame holes (32) are provided in a tubular burner main body (31), spaced apart in a longitudinal direction of the burner main body, an infrared radiating member (4) which is disposed facing the burner main body, spaced apart therefrom in a direction of gas ejection from the flame holes, is elongated in the longitudinal direction of the burner main body, and radiates infrared radiation by being heated, and a thermocouple (6) for detecting a flame generated when a fuel gas is supplied to the burner and the fuel gas ejected from the flame holes is burnt, thereby making it possible for a hydrogen flame to be reliably detected, without compromising yield strength, even if the burner uses hydrogen gas as the fuel gas and the hydrogen gas ejected from the flame holes is subjected to diffusion combustion. The thermocouple is disposed such that a temperature measuring contact point portion (61) thereof is located on a plane obtained by projecting in the longitudinal direction of the burner main body a shortest line (SI) joining a peripheral edge of the flame holes and one edge, in a width direction, of the infrared radiation radiating member.
F23N 5/10 - Systèmes de commande de la combustion utilisant des dispositifs sensibles aux variations thermiques ou à la dilatation thermique d'un agent utilisant des thermocouples
F23D 14/10 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion du type à induction, p. ex. becs Bunsen avec la tête de brûleur tubulaire allongée
A heating cooker according to the present invention is configured such that it is possible to quickly recognize the presence of a hydrogen flame from the beginning of combustion without a reduction in how much heat is produced. The present invention comprises a burner (3) that is formed by providing a plurality of burner ports (32) in a tubular burner body (31) at intervals in the long direction of the burner body. Hydrogen is supplied to the burner, and hydrogen emitted from the burner ports is combusted. The present invention also comprises an infrared radiation member (4) that is opposite the burner body at an interval in the direction in which hydrogen is emitted from the burner ports, is long in the long direction of the burner body, and radiates infrared light when heated. A flame color reaction agent (Fc) is applied to at least one of the surface of the burner body where the flame ports are provided and the surface of the infrared radiation member at both ends in the width direction.
F23D 14/84 - Diffusion de la flamme ou autres moyens pour lui donner une forme particulière
F23D 14/10 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion du type à induction, p. ex. becs Bunsen avec la tête de brûleur tubulaire allongée
A combustion device 1 includes an exhaust port member 5, wherein: an upper inner wall surface 55a of an upper wall portion 55 of the exhaust port member 5 includes a first upper inner wall surface portion 55b extending from a front end opening portion 71 to a predetermined position located rearward of the front end opening portion 71, an upper projecting wall surface portion 55c which extends over the entirety of an exhaust gas passage in a left-right direction, and which projects from a rear end of the first upper inner wall surface portion 55b toward the inside of the exhaust gas passage, and a second upper inner wall surface portion 55d extending from an inward end of the upper projecting wall surface portion 55c toward a rear end opening portion 72; and the second upper inner wall surface portion 55d is inclined upward toward the front end opening portion 71.
F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
This premixing apparatus mixes a fuel gas into air and supplies the air-fuel mixture to a burner (1) via a fan (5). The downstream end of a gas supply channel (7) is connected to a gas suction unit (61) provided in an air supply channel (6) on the upstream side of the fan (5). A butterfly valve (8) that freely rotates into at least two attitudes, which are an open attitude and a closed attitude, is provided in a portion of the air supply channel (6) upstream from the gas suction unit (61). The premixing apparatus can prevent, over an extended period of time, the inability to maintain a required amount of air when the butterfly valve (8) has been set in the closed attitude. A ventilation opening (82) is formed in the butterfly valve (8), said ventilation opening (82) being such that air flows therethrough from the upstream side to the downstream side of the butterfly valve (8) while the butterfly valve (8) is in the closed attitude. The size of the butterfly valve (8) is set such that, in the closed attitude, the gap between the outer peripheral edge (8b) of the butterfly valve (8) and the peripheral wall surface (6a) of the air supply channel (6) is substantially blocked so as to cause air to flow only through the ventilation opening (82).
F23L 13/02 - Structure des soupapes ou registres de commande de l'alimentation en air ou du tirage pivotant autour d'un axe unique, mais n'ayant pas d'autre mouvement
An exhaust port member 5 protrudes forward through an exhaust port member insertion port 104 opened in a front cover 102, from the inside of an exterior case 100 which stores a combustion device body 1. The exhaust port member 5 has a protruding part 51a that protrudes forward. The protruding part 51a has a drooping section 80 that extends downward from a protruding part lower surface 561b, and a recessed groove section 82 recessed upward between the drooping section 80 and the front cover 102.
In a gas governor, an auxiliary chamber divided by a separating wall from a main chamber that is a portion of the secondary pressure chamber is provided in the secondary pressure chamber, the auxiliary chamber communicates with the main chamber through a communicating passage, the separating wall is positioned at a portion away in a circumferential direction from an outflow-port opened portion that is a peripheral wall portion of the secondary pressure chamber, in which the outflow port is opened, and the separating wall is provided so that a distance from a valve hole and a curvature in the circumferential direction of at least an end portion of the separating wall, which is close to the valve seat, are equal to those of an end portion of the outflow-port opened portion, which is close to the valve seat.
In a combustion apparatus that includes a burner constituted by a burner body, an inside of which an air-fuel mixture is supplied to and one surface of which is made into an open surface, and a combustion plate covering the open surface of the burner body, and a combustion box enclosing a combustion space of the air-fuel mixture ejecting from the combustion plate, an offset part that is positioned at a portion which is away from the swelling part in an inflow direction of the air-fuel mixture to the inner chamber and does not oppose to a tip part(s) of the ignition electrode(s) through the combustion plate is provided with the opposite wall of the burner body and the offset part offsets to a combustion-plate side so that a distance between the offset part and the combustion plate becomes shorter than that between the combustion plate and a general part of the opposite wall except the swelling part and the offset part.
In a combustion apparatus that includes a combustion plate having a burner frame with a shape of a picture frame, which covers an open surface of a burner body, and a frame flange part outwardly extending from a side plate part, which is sandwiched between a body flange part of the burner body and a box flange part of a combustion box, which is fastened to the body flange part, a projecting part(s) positioning the burner frame with respect to the combustion box, which comes into contact with, or comes close to and is disposed opposite to an inner surface of the combustion box is provided with the side plate part of the burner frame. Preferably, the projecting part(s) is provided at a portion away from an end of a side of an opening peripheral edge part of the side plate part to a side of the frame flange part.
21 - Ustensiles, récipients, matériaux pour le ménage; verre; porcelaine; faience
Produits et services
Industrial laundry washing machines; food mixing machines
for commercial use; dishwashers for industrial purposes;
laundry washing machines for household purposes; dishwashers
for household purposes; electric wax-polishing machines for
household purposes; vacuum cleaners for household purposes;
electric food blenders for household purposes; mills for
household purposes, other than hand-operated; knives,
electric; whisks, electric, for household purposes; fruit
presses, electric, for household purposes; mixers, electric,
for household purposes; kitchen grinders, electric; crushers
for kitchen use, electric; kitchen machines, electric; tin
openers, electric; electric wax-polishing machines for
industrial purposes; vacuum cleaners for industrial
purposes. Gas water heaters for industrial purposes; boilers, other
than parts of non-electric prime movers or engines;
hot-water space heating apparatus for industrial purposes;
air conditioners for industrial purposes; gas ranges for
industrial purposes; electromagnetic induction cookers for
industrial purposes; cooking apparatus and installations for
commercial use; industrial rice cookers; roasters for
industrial purposes; industrial dish drying machines; dish
disinfectant apparatus for industrial purposes; kitchen
sinks incorporating integrated worktops for commercial use;
kitchen sinks for commercial use; electromagnetic induction
cookers for household purposes; electric water heaters for
household purposes; electric radiant heaters for household
purposes; gas water heaters for household purposes; gas
water heaters; gas ranges for household purposes; gas
cooking ovens for household purposes; gas rice cookers for
household purposes; gas grills for household purposes;
kitchen sinks incorporating integrated worktops for
household purposes; kitchen sinks for household purposes;
gas clothes drying machines for household purposes; gas
hot-water type bathroom heater and dryer for household
purposes; gas stoves; oil stoves; coal stoves; hot water
heating installations for household purposes; water heaters;
hot water heating installations; bathroom heaters; solar
water heaters; bubble generators for baths; microbubble
generators for baths. Non-electric coffee makers; cooking utensils, non-electric;
non-electric kettles; cookware and tableware, except forks,
knives and spoons; plates; non-electric griddles; grills in
the nature of cooking utensils; food preserving jars of
glass; plastic containers for kitchen use; ceramic pots;
cooking pots and pans, non-electric; oven mitts; trivets;
hand-operated cleaning instruments; dishcloths; yukakibo
(japanese bath utensils for hot bathtub water); bathroom
pails; cinder sifters for household purposes; gotoku
(trivets for japanese charcoal heaters for household
purposes); coal scuttles.
A fine bubble generating nozzle may include a nozzle unit and a baffle. The nozzle unit may include: an inlet; a pressure decreasing portion configured to decrease a pressure of a gas-dissolved pressurized water introduced from the inlet; a first collision chamber disposed downstream of the pressure decreasing portion and including a first collision wall with which the gas-dissolved pressurized water introduced from the pressure decreasing portion collides so that a flow direction of the gas-dissolved pressurized water changes; a second collision chamber disposed downstream of the first collision chamber and including a second collision wall with which the gas-dissolved pressurized water having flowed through the first collision chamber collides so that the flow direction of the gas-dissolved pressurized water changes; and an outlet. The baffle may be disposed outside of the nozzle unit and is disposed at a position facing the outlet.
B01F 23/232 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés en utilisant des moyens de mélange à écoulement pour introduire les gaz, p. ex. des chicanes
B01F 23/2373 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés caractérisé par les propriétés physiques ou chimiques des gaz ou des vapeurs introduits dans le milieu liquide pour obtenir des bulles fines, c.-à-d. des bulles d'une taille inférieure à 100 µm
B01F 25/421 - Mélangeurs statiques dans lesquels le mélange est affecté par le déplacement conjoint des composants dans des directions différentes, p. ex. dans des tubes munis de chicanes ou d'obstructions en déplaçant les composants sur une trajectoire convolutée ou labyrinthique
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japon)
Inventeur(s)
Ono Takahiro
Asahara Makoto
Miyasaka Takeshi
Asato Katsuo
Abrégé
Provided is a totally aerated combustion burner provided with: a burner body 1 having a mixture chamber 11 to which a mixture of a combustion gas and a primary air is supplied; and a burner plate part 2 that covers an open surface 12 of the burner body facing the mixture chamber, wherein a backfire suppression plate part 3 is disposed so as to face the burner plate part across a gap in the mixture chamber and the mixture after passing through the backfire suppression plate part is ejected from the burner plate part and is then burned. This totally aerated combustion burner is configured such that even when the combustion gas is hydrogen gas, backfire can be suppressed as much as possible while suppressing the pressure loss. The backfire suppression plate part has a sintered body sheet 33 obtained by sintering a laminate formed by laminating metal fibers or metal beads.
F23D 14/82 - Dispositifs de sécurité, p. ex. fonctionnant en cas d'interruption de l'alimentation en gaz pour éviter le retour de flamme ou l'explosion
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japon)
Inventeur(s)
Ono Takahiro
Asahara Makoto
Miyasaka Takeshi
Asato Katsuo
Abrégé
The present invention comprises: a burner body (1) that has a gaseous mixture chamber (11), in which hydrogen gas serves as a fuel gas and which is supplied with a gaseous mixture of the hydrogen gas and primary air; and a combustion plate part (2) that covers an open surface (12) of the burner body facing the gaseous mixture chamber, the present invention being configured such that backfiring can be effectively inhibited in a hydrogen combustion burner where the gaseous mixture is ejected from the combustion plate part and combusted. Used as the combustion plate part is a part having a sintered body sheet obtained by sintering a layered laminate without weaving or knitting metal fibers.
F23D 14/16 - Brûleurs à rayonnement utilisant des blocs perméables
F23D 14/82 - Dispositifs de sécurité, p. ex. fonctionnant en cas d'interruption de l'alimentation en gaz pour éviter le retour de flamme ou l'explosion
21 - Ustensiles, récipients, matériaux pour le ménage; verre; porcelaine; faience
Produits et services
Dishwashers for industrial purposes; dishwashers for household purposes Gas water heaters for industrial purposes; gas heating boilers; gas furnace boilers; gas hot water boilers; industrial boilers, other than parts of non-electric prime movers or engines; hot-water space heating apparatus for industrial purposes; air conditioners for industrial purposes; gas ranges for industrial purposes; electromagnetic induction cookers for industrial purposes; cooking apparatus and installations for commercial use, namely, cooktops; industrial rice cookers; gas roasters for industrial purposes; industrial dish drying machines; dish disinfectant apparatus for industrial purposes; kitchen sinks incorporating integrated worktops for commercial use; kitchen sinks for commercial use; electromagnetic induction cookers for household purposes; electric water heaters for household purposes; gas water heaters for household purposes; gas water heaters; gas ranges for household purposes; gas cooking ovens for household purposes; gas rice cookers for household purposes; gas grills for household purposes; kitchen sinks incorporating integrated worktops for household purposes; kitchen sinks for household purposes; gas clothes drying machines for household purposes; gas hot-water type bathroom heater and dryer for household purposes; gas hot-water type heat generator for use in heating and drying bathroom for household purposes; gas hot-water type bathroom heater and air dryer for household purposes; gas hot-water type bathroom heater and dehumidifier for household purposes; gas stoves; hot water heating installations for household purposes; water heaters; hot water heating installations; bathroom heaters; solar water heaters; bubble generators for baths, namely, bath tub jets, water jets for use in bathtubs and showers for use in generating bubbles in water; microbubble generators for baths Non-electric coffee makers; non-electric kettles; cookware, namely, roasting pans; plates; non-electric griddles; grills in the nature of cooking utensils; food preserving jars of glass; plastic household containers for food; ceramic pots; non-electric cooking pots; non-electric cooking pans; oven mitts; trivets; Gotoku (trivets for Japanese charcoal heaters for household purposes)
Not only a cylindrical weight is inserted with a clearance around an outside of a first axis part or a second axis part that extends opposite to the first axis part and is movable freely in an axial direction but also an annular seat surface on which the cylindrical weight is able to be seated by self-weight is provided with a governor valve. A projecting part(s) is provided with only a part in circumferential direction of one of the annular seat surface and a lower end surface of the cylindrical weight. The cylindrical weight is made sure to be supported on the annular seat surface in an inclined state from an upright posture by contact of the projecting part(s) with the other of the annular seat surface and the lower end surface of the cylindrical weight.
The present invention provides a water heating device capable of shortening a flow passage that mixes hot water and cold water and saving space in the device. In a flow path cross section of circular orthogonal to the central axis of the flow path, the flow inlet has an outer wall extending from the inner peripheral surface of the flow path in a direction of a tangent of the inner peripheral surface, and the central axis of the flow inlet is disposed closer to the inner peripheral surface of the flow path connected to the outer wall with respect to the central axis of the flow path.
A microscopic bubble generation device disclosed in the present specification is provided with: a body case which has an inlet part and an outlet part; and a first microscopic bubble generation unit which is housed in the body case and disposed between the inlet part and the outlet part. The microscopic bubble generation unit is provided with one or more Venturi flow channels. The one or more Venturi flow channels are each provided with: a reducing-diameter flow channel in which the channel diameter becomes increasingly smaller toward the downstream side; and an enlarging-diameter flow channel which is provided downstream of the reducing-diameter flow channel and in which the channel diameter becomes increasingly larger toward the downstream side. At least one of the one or more Venturi flow channels has formed therein a slit that caves in from the internal surface of the Venturi flow channel toward the radially outer side. The slit is continuously formed from a first end portion that coincides with the downstream end of the enlarging-diameter flow channel to a second end portion that is situated on the upstream side of said downstream end.
A47L 15/42 - Machines à laver ou à rincer la vaisselle ou les ustensiles de table Parties constitutives
B01F 23/2375 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés caractérisé par les propriétés physiques ou chimiques des gaz ou des vapeurs introduits dans le milieu liquide pour obtenir des bulles fines, c.-à-d. des bulles d'une taille inférieure à 100 µm pour obtenir des bulles fines, c.-à-d. des bulles d'une taille inférieure à 1 µm
B01F 25/10 - Mélange en créant un flux tourbillonnaire, p. ex. par l'introduction tangentielle de composants du flux
B01F 25/45 - Mélangeurs dans lesquels les composants du mélange sont pressés ensemble au travers d’orifices ou d’espaces interstitiels, p. ex. entre des perles
52.
FINE BUBBLE GENERATION DEVICE, WATER HEATER, AND DISHWASHER
This fine bubble generation device comprises: a body case having an inflow section and an outflow section; and a first fine bubble generation unit accommodated in the body case. The first fine bubble generation unit comprises: a trunk section; a Venturi flow path that connects to the inside of the trunk section; an upstream fitting section that is connected to the trunk section and substantially fits to the inside surface of the body case; and a downstream fitting section that is connected to the trunk section further downstream than the upstream fitting section, and that substantially fits to the inside surface of the body case. The inside of the body case is provided with a liquid draining flow path that is located between the inner surface of the body case and the outer surface of the trunk section, and that connects the gap space formed between the upstream fitting section and the downstream fitting section to the outflow section.
A47L 15/42 - Machines à laver ou à rincer la vaisselle ou les ustensiles de table Parties constitutives
B01F 23/2375 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés caractérisé par les propriétés physiques ou chimiques des gaz ou des vapeurs introduits dans le milieu liquide pour obtenir des bulles fines, c.-à-d. des bulles d'une taille inférieure à 100 µm pour obtenir des bulles fines, c.-à-d. des bulles d'une taille inférieure à 1 µm
B01F 25/10 - Mélange en créant un flux tourbillonnaire, p. ex. par l'introduction tangentielle de composants du flux
B01F 25/45 - Mélangeurs dans lesquels les composants du mélange sont pressés ensemble au travers d’orifices ou d’espaces interstitiels, p. ex. entre des perles
In a premixing apparatus that mixes a fuel gas with air and supplies an air-fuel mixture to a burner through a fan, includes a main valve, a zero governor, and a variable throttle valve which are interposed from an upstream side downward in sequence in a gas supply passage, of which an downstream end is connected to a gas suction part that is provided in an air supply passage on an upstream side of a fan, and carries out a first control that regulates an opening degree of the variable throttle valve so that an excess air ratio of the air-fuel mixture, which is indexed based on a flame current that is detected by a flame rod which is exposed in flames of the burner, and a second control that, at time of a post-purge operation, if the flame rod detects the flame current, it will be decided that an open trouble of the main valve occurs and the opening degree of the throttle valve will be tightened till a minimum opening-degree which is set so that the burner is extinguished.
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
C10K 3/06 - Modification de la composition chimique des gaz combustibles contenant l'oxyde de carbone en vue de produire un carburant amélioré, p. ex. un carburant de pouvoir calorifique différent qui peut ne pas contenir d'oxyde de carbone par mélange avec des gaz
C10L 3/00 - Combustibles gazeuxGaz naturelGaz naturel de synthèse obtenu par des procédés non prévus dans les sous-classes , Gaz de pétrole liquéfié
Provided is a water heater with which it is possible to suppress any sharp rise in the manufacturing cost of a configuration in which a microbubble generator is accommodated within a casing. This water heater 1 comprises a casing 8, combustion devices 31, 32, heat exchangers 41A-42B, a water supply pipe P1, a hot-water supply pipe P2, a water supply connection member 10, a hot-water supply connection member 20, and a water quantity control unit 50. The water heater 1 furthermore comprises a microbubble generator 9 that is connected to one specific pipe P2 among the water supply pipe P1 and the hot-water supply pipe P2 within the casing 8, the microbubble generator 9 being formed in a substantially cylindrical shape for which the length in a center-axis X9 direction is greater than the exterior width and generating microbubbles in hot water flowing through the interior. The microbubble generator 9 has: an inflow opening 91H positioned on one side in the center-axis X9 direction, the inflow opening 91H being such that hot water flows in from the upstream side P2U of the specific pipe P2; and an outflow opening 92H positioned on the other side in the center-axis X9 direction, the outflow opening 92H causing hot water including microbubbles to flow out to the downstream side P2D of the specific pipe P2. The microbubble generator 9 is positioned lower than flame openings 31F, 32F of burners 31B, 32B.
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
55.
FINE BUBBLE GENERATION DEVICE, WATER HEATER, AND DISHWASHER
This fine bubble generation device comprises an inflow part, an outflow part, a first fine bubble generation part provided between the inflow part and the outflow part, and a second fine bubble generation part provided between the first fine bubble generation part and the outflow part. The first fine bubble generation part is provided with a Venturi part including a reduced-diameter flow path where the flow path diameter decreases from the upstream toward the downstream, and an expanded-diameter flow path where the flow path diameter expands from the upstream toward the downstream. The second fine bubble generation part is provided with a plurality of swirling-flow generation parts disposed so as to be aligned in the downstream-side center axial direction of the second fine bubble generation part. Each of the plurality of swirling-flow generation parts includes: a shaft part that extends in the downstream-side center axial direction; an outer circumferential part surrounding the shaft part; and a plurality of blade parts that are provided between the shaft part and the outer circumferential part and generate a swirling flow flowing in a prescribed swirling direction with respect to the shaft part.
In a premixing apparatus that mixes a fuel gas with air, supplies an air-fuel mixture to a burner through a fan, and carries out a control that regulates an opening degree of a variable throttle valve, which is interposed in a gas supply passage, so that an excess air ratio of an air-fuel mixture becomes an appropriate value, in a case where a detected excess air ratio deviates to one side, e.g., a large side, from an acceptable range, a motor is repeatedly caused to rotate by a unit-angle in an opening-degree increasing direction until the detected excess air ratio becomes an appropriate value. In a case where the detected air ratio deviates to the other side, e.g., a small side, from the acceptable range, the motor is caused to rotate, at a high speed in an opening-degree decreasing direction, till a first position that is anticipated that the excess air ratio will become a value that deviates by a fixed quantity from the acceptable range to a large side, thereafter, the motor is caused to rotate, at the high speed in an opening-degree increasing direction, till a second position that is a short of a target position, and subsequently, the motor is caused to rotate by the unit-angle in the opening-increasing direction.
F23D 14/04 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion du type à induction, p. ex. becs Bunsen
F23D 14/60 - Dispositifs pour le réglage simultané du gaz et de l'air de combustion
In a fan apparatus that includes a passage, a switching device, and a control device, on a premise that at a state where an effective sectional area at a predetermined portion of the passage is switched to a predetermined first-area by the switching device, a value of a current flowing to the fan when a rotational speed of the fan is made to a predetermined rotational speed is defined as a first fan-current value, at a state where the effective sectional area at the predetermined portion of the passage is switched to a predetermined second-area which is larger than that of the first area by the switching device, the value of the current flowing to the fan when the rotational speed of the fan is made to the predetermined rotational speed is defined as a second fan-current value, and a ratio of the first fan-current value to the second fan-current value is defined as a detected current ratio, a control device is configured to: memorize as a standard current ratio a detected current ratio that is detected when the fan apparatus is set up; and decide a clogging degree of the passage by comparison of a detected current ratio after detection of the standard current ratio with the standard current ratio.
In a combustion apparatus that includes a heat exchanger which is disposed in a combustion box, on a premise that a direction from a burner to the heat exchanger is defined as a Z-axis plus direction, a direction opposite to the Z-axis plus direction is defined as a Z-axis minus direction, and an orthogonal direction to a Z-axis direction, which is along fins of the heat exchanger is defined as a X-axis direction, a thermal insulation material is arranged on an inner surface of a swelling part that is formed at a side plate part of a combustion box and outwardly swells in the X-axis direction so as to be sandwiched from both sides in the Z-axis direction by a step that is outwardly bent in the X-axis direction, which is positioned an end, in the Z-axis plus direction, of the swelling part and a structural member of a burner, which inwardly protrudes in the X-axis direction from an end, in the Z-axis minus direction, of the side plate part. A vicinity portion of an end, in the Z-axis plus direction, of the thermal insulation material is held from an inside in the X-axis direction by a side edge portion, on each side in the X-axis direction, of the fins.
A rich-lean flame burner having on an upper part thereof: a longitudinally elongated lean burner port; and a rich burner port lying adjacent to at least one lateral side of the lean burner port with a clearance therebetween. At a plurality of longitudinal points of straightening members having a plurality of straightening plates which divide the lean burner port into a plurality of laterally sectioned regions, there are disposed first constricted portions which bring upper parts of the straightening plates into intimate contact with each other. Second constricted portions are disposed in at least laterally outermost straightening plates to further divide each portion of the lean burner port that has been divided by the first constricted portions. The second constricted portions are such that the lower end thereof is positioned above the lower end of the first constricted portions, and that the vertical length is shorter than the first constricted portions.
A combustion device may include a casing including a bottom plate, a combustion unit housed in the casing, and a fan housed in the casing and configured to take in air inside the casing and supply the air to the combustion unit. The bottom plate may be provided with a flat portion and a recess recessed downward from the flat portion. The recess may be provided with a drainage hole and an eave arranged above the drainage hole. The drainage hole may be located below an upper surface of the flat portion. The eave may be at least partially located below the upper surface of the flat portion.
A premixing apparatus that mixes a fuel gas with air and supplies an air-fuel mixture in a burner through a fan includes a control device that is configured to carry out a third control that: calculates and memorizes a lower limit of a rotational speed of a fan, at which an increase of an opening degree of a variable throttle valve becomes necessary, as a first threshold; and when the rotational speed of the fan increases to the first threshold or faster next time, immediately changes the opening degree of the variable throttle valve to an increased opening degree, which is larger than a predetermined standard opening degree and is obtained by multiplying a deviation of the rotational speed of the fan from the first threshold by a predetermined coefficient.
Laundry washing machines; bubble generators for laundry
washing machines; microbubble generators for laundry washing
machines; industrial laundry washing machines; laundry
washing machines for household purposes; vehicle washing
installations; bubble generators for vehicle washing
installations; microbubble generators for vehicle washing
installations; dishwashers; bubble generators for
dishwashers; microbubble generators for dishwashers;
dishwashers for industrial purposes; dishwashers for
household purposes. Electric water heaters for household purposes; gas water
heaters; gas water heaters for household purposes; gas water
heaters with bubble generator for household purposes; gas
water heaters with microbubble generator for household
purposes; water heaters; water heaters with bubble
generator; water heaters with microbubble generator; hot
water heating installations; hot water heating installations
with bubble generator; hot water heating installations with
microbubble generator; bath fittings; bath tubs with bubble
generator; bath tubs with microbubble generator; bath
boilers; shower heads; faucets; taps for wash-hand basins;
tap water faucets; bubble generators for baths; microbubble
generators for baths; solar water heaters; bubble generators
for waste water treatment apparatus; microbubble generators
for waste water treatment apparatus; waste water treatment
tanks for industrial purposes; non-electric tap-water
purifying apparatus for household purposes; water purifying
apparatus for industrial purposes; washers for water taps.
A totally aerated combustion burner has a combustion plate part through which an air-fuel mixture is ejected. The combustion plate part includes: an air-fuel mixture permeable body made from metallic fibers to allow the air-fuel mixture to pass therethrough; and a distribution plate having formed therein a multiplicity of distribution holes and being stacked on a back surface of the air-fuel mixture permeable body. An air-fuel mixture permeable body is constructed by laminating a plurality of metallic-fiber woven bodies which are woven by metallic-fiber threads obtained by bundling a plurality of metallic fibers relatively large in diameter. These metallic-fiber woven bodies are laminated such that a part of meshes in one metallic-fiber woven body overlaps a portion other than meshes in another metallic-fiber woven body, said one metallic-fiber woven body and said another metallic-fiber woven body that lies adjacent to each other in the laminating direction.
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
F23D 14/14 - Brûleurs à rayonnement utilisant des écrans ou des plaques perforées
A fine bubble generator may include an inlet into which gas-dissolved water in which gas is dissolved flows, an outlet out of which the gas-dissolved water flows; and a fine bubble generation portion disposed between the inlet and the outlet. The fine bubble generation portion may include a venturi portion including a diameter-reducing flow path and a diameter-increasing flow path, wherein a flow path diameter of the diameter-reducing flow path reduces from upstream to downstream, and the flow path diameter of the diameter-increasing flow path increases from upstream to downstream, a discharging flow path configured to discharge the gas-dissolved water, which flowed out of the venturi portion, out of the fine bubble generation portion; and a recirculation flow path connecting a midstream of the outflow path and the venturi portion.
B01F 23/23 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés
B01F 23/231 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés par barbotage
B01F 25/312 - Mélangeurs à injecteurs dans des conduits ou des tubes dans lesquels circule le composant principal avec des éléments VenturiLeurs détails
B01F 23/232 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés en utilisant des moyens de mélange à écoulement pour introduire les gaz, p. ex. des chicanes
Gas water heaters for industrial purposes; boilers, other
than parts of non-electric prime movers or engines;
hot-water space heating apparatus for industrial purposes;
air conditioners for industrial purposes; gas ranges for
industrial purposes; cooking apparatus and installations for
commercial use; industrial dish drying machines; dish
disinfectant apparatus for industrial purposes; kitchen
sinks incorporating integrated worktops for commercial use;
kitchen sinks for commercial use; gas water heaters for
household purposes; gas water heaters; gas ranges for
household purposes; gas cooking ovens for household
purposes; kitchen sinks incorporating integrated worktops
for household purposes; kitchen sinks for household
purposes; gas stoves; oil stoves; coal stoves; hot water
heating installations for household purposes; water heaters;
hot water heating installations; bathroom heaters.
A fine bubble generator may include an inlet, an outlet, a first fine bubble generation portion including a first flow path, and a second fine bubble generation portion including a second flow path. The first flow path may include a diameter-reducing flow path and a diameter-increasing flow path. The second flow path may include a guide flow path and a collision flow path disposed downstream of the guide flow path. A first bearing and a first impeller rotatably attached to the first bearing may be disposed on the collision flow path. The first impeller may include a disc disposed at a position at which the gas-dissolved water collides with the disc; a first rotation shaft disposed on a downstream surface of the disc and rotatably attached to the first bearing; and one or more first vanes disposed on an upstream surface of the disc.
B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides
B01F 23/232 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés en utilisant des moyens de mélange à écoulement pour introduire les gaz, p. ex. des chicanes
B01F 25/50 - Mélangeurs de circulation, p. ex. dans lesquels au moins une partie du mélange est évacuée d'un récipient et réintroduite dans celui-ci
B01F 23/23 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés
B01F 23/2373 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés caractérisé par les propriétés physiques ou chimiques des gaz ou des vapeurs introduits dans le milieu liquide pour obtenir des bulles fines, c.-à-d. des bulles d'une taille inférieure à 100 µm
A fine bubble generator may include an inlet; an outlet; a first fine bubble generation portion; and a second fine bubble generation portion. The first fine bubble generation portion includes: a diameter-reducing flow path and a diameter-increasing flow path. The second fine bubble generation portion includes: a first swirling flow generation portion; and a second swirling flow generation portion. The first swirling flow generation portion includes: a first outer peripheral portion; and a plurality of first vanes disposed configured to generate a first swirling flow flowing in a first swirling direction with respect to a center axis of the second fine bubble generation portion. The second swirling flow generation portion includes: a second outer peripheral portion; and a plurality of second vanes configured to generate a second swirling flow flowing in a second swirling direction opposite to the first swirling direction with respect to the center axis.
B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides
B01F 23/232 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés en utilisant des moyens de mélange à écoulement pour introduire les gaz, p. ex. des chicanes
B01F 23/2373 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés caractérisé par les propriétés physiques ou chimiques des gaz ou des vapeurs introduits dans le milieu liquide pour obtenir des bulles fines, c.-à-d. des bulles d'une taille inférieure à 100 µm
B01F 25/10 - Mélange en créant un flux tourbillonnaire, p. ex. par l'introduction tangentielle de composants du flux
B01F 25/432 - Tubes de mélange, p. ex. dans lesquels la matière est déplacée dans une direction radiale ou partiellement inversée avec des moyens pour diviser l’écoulement de matière en écoulements secondaires séparés et pour repositionner et recombiner ces écoulements secondairesMélange croisé, p. ex. en amenant la couche extérieure de la matière plus près de l'axe du tube ou vice-versa
B01F 25/433 - Tubes de mélange dans lesquels la forme du tube influence le mélange, p. ex. tubes de mélange ayant une section transversale variable ou pourvus de profils s'étendant vers l'intérieur
B01F 25/00 - Mélangeurs à écoulementMélangeurs pour matières tombantes, p. ex. particules solides
A combustion apparatus includes a box and a front plate. An inward flange extending inward is provided at least on an upper part at the peripheral edge of the front plate. The upper part of the opening of the box is provided with a tongue piece protruding in the direction of the front plate. The inward flange of the front plate is provided with a notch restricting a downward movement of the front plate by bringing an upper end of the notch into contact with an upper part of the tongue piece and restricting a left-right movement of the front plate by bringing a side end of the notch into contact with at least one of left and right parts of the tongue piece in a state where the front plate is disposed at a correct position with respect to the opening of the box.
A combustion chamber inside a combustion box has disposed therein a burner positioning frame having: a rear frame part positioned on a rear side of a burner-disposed portion; and a burner positioning frame having side frame part positioned on each laterally outside of the burner-disposed portion. The rear frame part has formed therein a laterally elongated drawn part which is dented rearward. The secondary air flowing from the distribution holes positioned in such a portion of the partition plate as is closer to the rear end of the partition plate is restrained by the drawn part from flowing upward from between the partition plate and a lower edge of the rear frame part through a clearance between the rear frame part and a rear plate part of the combustion box.
F23M 5/08 - Refroidissement des armatures, enveloppes ou paroisTubes de parois
F23D 14/10 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion du type à induction, p. ex. becs Bunsen avec la tête de brûleur tubulaire allongée
F23L 9/00 - Passages ou ouvertures pour introduire l'air secondaire nécessaire à la combustion complète du combustible
In a water heater provided with an inlet pipe a downstream end of which is connected with an upstream end of a water heating channel of a heat exchanger for producing hot water, an outlet pipe an upstream end of which is connected with a downstream end of the water heating channel, and a bypass pipe branching at a part of the inlet pipe, which is positioned at an upstream-end part away from an upstream end, and is connected with a part of the outlet pipe, which is positioned at a more downstream part than at an upstream end, a connecting part of the bypass pipe with the outlet pipe and another connecting part of an inlet pipe and the upstream end of the water heating channel are arranged at a same height in a setting state of the water heater.
F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
A connection adapter 7, which is disposed between the appliance-side exhaust section 5 of each combustion device 2 of a combined combustion device 1 and a collective exhaust cylinder 10, comprises: a first exhaust pipe 70, the lower end of which is connected to an appliance-side exhaust pipe 50; a backflow prevention valve 75 that is provided at the upper-end opening of the first exhaust pipe 70 and prevents backflow of combustion exhaust from the collective exhaust cylinder 10 to an appliance body 20 while combustion is stopped; and a second exhaust pipe 80 that is provided so as to surround the outer periphery of the first exhaust pipe 70, and connected at the lower end to a drain water recovery unit 55 and at the upper end to the collective exhaust cylinder 10.
F23L 17/04 - Dispositifs d'équilibrage des conduits de circulation, c.-à-d. dispositifs qui combinent l'entrée d'air dans l'appareil de combustion avec la sortie des fumées
F23L 17/12 - Dispositifs de fixation des mitrons ou débouchés aux cheminées, conduits, ou carneaux
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
A premixing apparatus for mixing air with a fuel gas to supply a burner with an air-fuel mixture via a fan includes: a zero governor and a motor-driven type of variable throttle valve, both being disposed in a gas supply passage; and an excess air ratio detecting device for detecting an excess air ratio of the air-fuel mixture, thereby regulating an opening degree of the variable throttle valve so that the excess air ratio of the air-fuel mixture becomes a predetermined value. An arrangement is made to prevent an ignition failure from occurring in an attempt to perform an ignition operation in a state in which, due to a trouble with the variable throttle valve of remaining opened or remaining closed, the excess air ratio of the air-fuel mixture becomes too small or too excessive. The variable throttle valve is provided with a sensing device.
F23N 1/02 - Régulation de l'alimentation en combustible conjointement au réglage de l'amenée d'air
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
F23L 5/02 - Aménagements des ventilateurs ou des soufflantes
F24H 1/10 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant
A premixing apparatus has a butterfly valve provided in an air supply passage, a zero governor and a variable throttle valve interposed in a gas supply passage. A control is performed to switch a combustion capacity between at least two stages of a large-capacity stage and a small-capacity stage through change in opening degrees of the butterfly valve and the variable throttle valve. At the small-capacity time, in case the opening degree of the variable throttle valve, when regulated so that the λ becomes a predetermined value, has been changed more to the small-opening-degree side than the predetermined small-capacity opening degree, in a state in which the opening degree of the variable throttle valve has been returned to the predetermined small-capacity opening degree, the opening degree of the butterfly valve is regulated such that the λ becomes the predetermined value, and the small-capacity opening degree of the butterfly valve is renewed to the predetermined value when the λ becomes the predetermined value.
C10K 3/06 - Modification de la composition chimique des gaz combustibles contenant l'oxyde de carbone en vue de produire un carburant amélioré, p. ex. un carburant de pouvoir calorifique différent qui peut ne pas contenir d'oxyde de carbone par mélange avec des gaz
A controller memorizes an accumulated combustion time by accumulating combustion time of a burner, and is set in a first lower-limit and a second lower-limit higher than the first lower-limit as a lower-limit lower than an initial value of an excess air ratio when reducing an excess air limit of a mixture gas of combustion air and a fuel gas, and the former is the lower-limit in case the accumulated combustion time is under a predetermined set time and the latter is the one in case the accumulated combustion time is the predetermined set time and over.
An electrically operated gas flow regulating valve in which a needle valve body (2) is moved axially through a motion conversion mechanism (4) by the rotation of an electric motor (3). The motion conversion mechanism (4) includes: a guide tube (5) in which is formed axially elongated slits (51) with which cam pins (21) fixed to the needle valve (2) are slidably engaged; and a tubular cam body (6) having a spiral cam part with which the cam pins (21) are engages through elongated slits (51). In an arrangement in which one of the guide tube (5) and the cam body (6), e.g., the guide tube (5), is rotated by the electric motor (3), hysteresis is restrained from occurring.
The cam part disposed in the cam body (6) is constituted by a spirally inclined sides (61) with which the cam pins (21) are brought into contact from axial one direction. A spring member (7) is disposed so as to urge the cam pins (21) in the other of the axial directions toward the spirally inclined sides (61).
F16K 3/22 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution
F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
Gas cooking ovens for household purposes; desiccating
apparatus; recuperators for chemical processing; steamers
for chemical processing; evaporators; distillation
apparatus; heat exchangers, other than parts of machines;
industrial boilers; air conditioning apparatus for
industrial purposes; industrial cooking ovens; dish drying
machines for industrial purposes; dish disinfectant
apparatus for industrial purposes; electric lamps and other
lighting apparatus; gas water heaters; non-electric cooking
heaters for household purposes; kitchen worktops; sinks.
An outer peripheral edge part of the air-fuel mixture permeable member is connected to a portion away outward by a predetermined distance from an inner peripheral edge of the burner frame. Between the burner frame and the air-fuel mixture permeable member a clearance reaching the inner peripheral edge of the burner frame is secured at a position inward of the outer peripheral part of the air-fuel mixture permeable member. Preferably, a bent edge part formed on an inner peripheral edge of the burner frame, in a manner to be bent toward the air-fuel mixture permeable member. The amount of the air-fuel mixture to flow into the clearance is limited to a smaller amount.
A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. A gas manifold distributes fuel gas flowing in through an inlet to a plurality of distribution chambers through a main channel. The main channel includes a flow guide that guides the fuel gas toward a maximum distribution chamber and reduces the fuel gas flowing into other distribution chambers. This allows fuel gas at a sufficient flow rate to be fed more easily to the maximum distribution chamber than to the other distribution chambers for a larger number of distribution chambers included in the gas manifold, allowing the plurality of distribution chambers to be fed with fuel gas at appropriate flow rates.
F24H 9/02 - EnveloppesCouvercles de protectionPanneaux décoratifs
F24H 9/20 - Disposition ou montage des dispositifs de commande ou de sécurité
F24H 1/12 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant
F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
F24H 9/13 - Raccordement des éléments chauffants, de transfert ou de production de chaleur aux tuyauteries de circulation pour appareils de chauffage de l’eau
A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. Fuel gas flowing through in an inlet is distributed to a plurality of distribution chambers through a main channel. A bypass channel parallel with the main channel also feeds fuel gas to a maximum distribution chamber. This can prevent the feeding of the fuel gas to the maximum distribution chamber from being affected by and reduced by the feeding of the fuel gas to the bypassed distribution chambers. This also prevent the feeding of the fuel gas to the other distribution chambers from being affected by and reduced by the feeding of the fuel gas to the maximum distribution chamber. The plurality of distribution chambers are thus fed with fuel gas at appropriate flow rates.
Water heaters; instantaneous water heaters; water heaters
for household purposes; gas water heaters; gas water heaters
for household purposes; water heaters for industrial use;
solar water heaters.
[Problems] A flat burner elongated in the longitudinal direction has, at an upper end thereof, a main burner port (63) and a flame retention port (64) positioned at least on laterally one side of the main burner port (63). The flat burner uses hydrogen-containing fuel as a fuel. Flash back is prevented at the flame retention port in which the gas ejection speed becomes relatively small.
[Solving Means] A lean fuel-air mixture which is leaner in fuel concentration than a theoretical fuel-air ratio is ejected from the main burner port (63) and a gas containing only fuel is ejected from the flame retention port (64). In addition, the height, on the side of the main burner port (63), of the upper end of the flame retention port (64), is made lower than the height of the upper end of the main burner port (63).
F23D 14/26 - Brûleurs pour la combustion d'un gaz, p. ex. d'un gaz stocké sous pression à l'état liquide avec dispositifs pour retenir la flamme
F23D 14/82 - Dispositifs de sécurité, p. ex. fonctionnant en cas d'interruption de l'alimentation en gaz pour éviter le retour de flamme ou l'explosion
F23D 14/28 - Brûleurs pour la combustion d'un gaz, p. ex. d'un gaz stocké sous pression à l'état liquide associés à une source de combustible gazeux, p. ex. générateur d'acétylène ou réservoir de gaz liquéfié
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
A heat exchanger prevents cracking in heat transfer plates while avoiding lowering heat-exchange efficiency. Heat transfer plates are arranged with a space between them, and a hollow pipe extends through the plates. A high-temperature gas flows through the space to exchange heat with a liquid in the hollow pipe. The heat transfer plates are elongated in the direction in which parts of the hollow pipe are aligned and can thus have thermal expansion accumulating in the elongation direction. The heat transfer plates each include a thermal expansion absorber between an edge of the heat transfer plate receiving inflow of the high-temperature gas and an inter-pipe portion between adjacent parts of the hollow pipe to absorb thermal expansion of the heat transfer plate. A selected one or more of the inter-pipe portions, rather than all, include the thermal expansion absorber.
F28F 3/06 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens pouvant être fixés sur l'élément
F24H 9/1809 - Disposition ou montage des grilles ou des éléments chauffants pour appareils de chauffage de l’eau
F28F 1/32 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et s'étendant transversalement les moyens ayant des parties engageant d'autres éléments tubulaires
F28D 1/047 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec canalisations tubulaires les canalisations étant courbées, p. ex. en serpentin ou en zigzag
86.
Tankless water heater with bypass valve operating differently in intermittent operation and normal operation
The water heater may be configured to execute a normal operation in which a heating means is continuously operated in an ON state in a case where a required heat quantity is greater than or equal to a minimum heat quantity. The water heater may be configured to execute an intermittent operation in which the heating means is alternately and repeatedly operated in the ON state and an OFF state repeatedly in a case where the required heat quantity is less than the minimum heat quantity. The water heater may be configured to change a distribution ratio of a flow control mechanism in the normal operation and in the intermittent operation. An operating speed of the flow control mechanism in the intermittent operation may be faster than an operating speed of the flow control mechanism in the normal operation.
F24H 9/20 - Disposition ou montage des dispositifs de commande ou de sécurité
G05D 11/16 - Commande du rapport du mélange de fluides ayant des températures différentes, p. ex. en déterminant la température d'un mélange de fluides ayant des viscosités différentes
F24H 1/10 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant
The present invention improves the user-friendliness of a hot-water supply apparatus when using hot water supply and air conditioning. A switching control unit 27, which switches between heat medium flow paths 4 and 5 according to an air conditioning ready state or a hot-water supply ready state, switches a heat medium flow path to the hot-water supply ready state by a switching valve 21 in the case where air conditioning is not used by the time an air conditioning standby time elapses during standby in the air conditioning ready state.
F24D 3/08 - Systèmes de chauffage central à eau chaude combinés avec des systèmes de fourniture domestique d'eau chaude
F24D 19/10 - Aménagements ou montage des dispositifs de commande ou de sécurité
F24H 1/52 - Appareils de chauffage de l'eau pour chauffage central comprenant des moyens pour chauffer l'eau sanitaire comprenant des échangeurs de chaleur pour l'eau sanitaire
A heat source device including a sheet-metal burner body (30), a fan casing (40) connected to the burner body (30), an annular packing (90) connecting a burner-side connection end surface (340) with a fan-side connection end surface (410) in an airtight state, a sheet-metal connection part (80) disposed between the burner-side connection end surface (340) and the fan-side connection end surface (410), wherein the connection part has an opening (85) and a packing storage portion (84) storing the annular packing (90), wherein the opening (85) is provided in such a manner that an opening edge is positioned outside of those of an inlet port (35) and a blowout port (44) in a state where the connection part (80) is disposed between the burner-side connection end surface (340) and the fan-side connection end surface (410).
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
F23L 3/00 - Aménagements des soupapes ou des registres situés devant le foyer
F23L 17/00 - Génération du tirageMitrons de cheminées ou de conduits d'alimentation en airDébouchés de conduits de cheminées
F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
F24H 1/12 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant
A heating and hot-water supply apparatus performs a heating operation by heating a heating medium with a heater and circulating the heating medium through a heating terminal, a hot-water supply operation by circulating the common heating medium through a hot-water supply heat exchanger, heating service water through heat exchange with the heating medium, and supplying hot water, and a simultaneous operation of the heating operation and the hot-water supply operation, and controls a distribution ratio of the heating medium between the heating terminal and the hot-water supply heat exchanger. The apparatus determines whether the heating terminal proceeding in the heating operation is a suspendible terminal to suspend the heating operation or an unsuspendible terminal not to suspend the heating operation in response to a request for the hot-water supply operation.
F24D 3/08 - Systèmes de chauffage central à eau chaude combinés avec des systèmes de fourniture domestique d'eau chaude
F24H 1/52 - Appareils de chauffage de l'eau pour chauffage central comprenant des moyens pour chauffer l'eau sanitaire comprenant des échangeurs de chaleur pour l'eau sanitaire
F24D 17/02 - Systèmes domestiques d'alimentation en eau chaude utilisant des pompes à chaleur
F24D 19/10 - Aménagements ou montage des dispositifs de commande ou de sécurité
F24D 3/18 - Systèmes de chauffage central à eau chaude utilisant des pompes à chaleur
A heating and hot-water supply apparatus shortens the time taken for hot-water supply to stabilize at a set temperature in response to a request for a hot-water supply operation during a heating operation. The apparatus performs, using a common heating medium heated by a heater, a heating operation by circulating the heating medium through a heating terminal, and a hot-water supply operation of heating service water through heat exchange with the heating medium circulated through a hot-water supply heat exchanger and supplying hot water. A distribution unit (three-way valve) changes a distribution ratio of the heating medium between the heating terminal and the hot-water supply heat exchanger. A controller controls an amount of heat generated by the heater for the heating operation or the hot-water supply operation, and stops heating with the heater when the temperature of the heating medium reaches a predetermined upper-limit temperature.
F24D 3/08 - Systèmes de chauffage central à eau chaude combinés avec des systèmes de fourniture domestique d'eau chaude
F24D 17/02 - Systèmes domestiques d'alimentation en eau chaude utilisant des pompes à chaleur
F24H 1/52 - Appareils de chauffage de l'eau pour chauffage central comprenant des moyens pour chauffer l'eau sanitaire comprenant des échangeurs de chaleur pour l'eau sanitaire
F24H 9/20 - Disposition ou montage des dispositifs de commande ou de sécurité
F24D 19/10 - Aménagements ou montage des dispositifs de commande ou de sécurité
In a combustion apparatus including a burner, a combustion box on a lower side of the burner and enclosing a heat exchanger, and a water jacket in the combustion box and connected to a downstream side of the heat exchanger, the water jacket is arranged to connect together an inlet jacket part disposed in one lateral-side side plate of the combustion box, and an outlet jacket part having a hot water outlet port through jacket parts disposed in the other side plates of the combustion box. An extension jacket part is disposed so as to be elongated from an upper part of the outlet jacket part toward the inlet jacket part and formed such that a sectional center of a tip is positioned below a sectional center of the hot water outlet port.
F23D 14/78 - Refroidissement des éléments du brûleur
F23M 5/08 - Refroidissement des armatures, enveloppes ou paroisTubes de parois
F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
An electrically operated gas flow regulating valve causes a needle valve body to move axially by the rotation of an electric motor through a motion conversion mechanism. The mechanism includes: a rotating body rotated by the electric motor; a cylindrical cam body prevented from rotating; a cam pin which is engaged with a spiral cam groove formed in the cam body and which is fixed to the needle valve body. The cam body is divided into two parts of a forward-side half part and backward-side half part with the cam groove serving as a boundary. The backward-side half part is urged by a coil spring in the forward direction such that the cam pin is pinched between the forward-side side edge of cam groove formed in the forward-side half part and the backward-side side edge of cam groove formed in the backward-side half part, thereby restraining the occurrence of hysteresis.
F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
A rotational shaft is placed through insertion holes of rubber washers sandwiching a portion of an impeller having a mount hole. The impeller is mounted on the rotational shaft with a nut on a threaded distal end portion of the rotational shaft. The rotational shaft of the motor includes a locking surface. The insertion holes of the rubber washers each have the same shape as the cross-sectional shape of the rotational shaft. The mount hole of the impeller includes a spacing portion extending at an angle from the linear portion of the insertion hole of each rubber washer away from the locking surface of the rotational shaft. Although the impeller rotates with respect to the rotational shaft under a frictional force applied from the nut tightened against the rotational shaft, this structure prevents metallic contact between the impeller at the mount hole and the locking surface of the rotational shaft.
A heat source device comprising: a combustion chamber (2) provided between a burner (31) and a heat exchanger (1); an inlet pipe (20) for allowing a fluid to be heated to flow in the heat exchanger (1); an outlet pipe (21) for allowing the fluid to be heated to flow out from the heat exchanger (1); and a winding pipe (27) wound around an outer surface of a peripheral wall of the combustion chamber (2), wherein either the inlet pipe (20) or the outlet pipe (21) has an orifice (91) for throttling a fluid flow path of the fluid to be heated flowing in the inlet pipe (20) or the outlet pipe (21).
F28F 3/00 - Éléments en forme de plaques ou de laminésEnsembles d'éléments en forme de plaques ou de laminés
F24H 1/41 - Appareils de chauffage de l'eau autres qu'instantanés ou à accumulation, p. ex. chauffe-eau pour chauffage central avec un ou plusieurs tubes d'eau en forme de serpentin
F24H 8/00 - Appareils de chauffage de fluides caractérisés par des moyens pour extraire par condensation la chaleur latente des fumées
F24H 9/18 - Disposition ou montage des grilles ou des éléments chauffants
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
F24H 1/44 - Appareils de chauffage de l'eau autres qu'instantanés ou à accumulation, p. ex. chauffe-eau pour chauffage central avec combinaison de plusieurs types couverts par les groupes
F24H 1/32 - Appareils de chauffage de l'eau autres qu'instantanés ou à accumulation, p. ex. chauffe-eau pour chauffage central avec une chemise d'eau entourant la ou les chambres de combustion la chemise d'eau étant réalisée par sections avec sections verticales disposées côte à côte
F24H 1/34 - Appareils de chauffage de l'eau autres qu'instantanés ou à accumulation, p. ex. chauffe-eau pour chauffage central avec réservoir d'eau adjacent à la chambre ou aux chambres de combustion, p. ex. au-dessus ou à côté
F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
95.
Plate-type heat exchanger and heat source apparatus
The plate-type heat exchanger includes blocks stacked on each other, each of the blocks including a heat exchanger body configured to exchange heat between a first fluid and a second fluid. A connection passage for the first fluid is formed between blocks adjacent to each other of the plurality of blocks, the connection passage allowing the outlet of one of the blocks adjacent to each other and the inlet of the other of the blocks adjacent to each other to communicate with each other, the first fluid in the blocks adjacent to each other having different flow directions between the blocks adjacent to each other, and a second connection passage is provided between at least one pair of blocks adjacent to each other among the plurality of blocks, the second connection passage being configured to cause the first fluid to flow to a position different from the connection passage.
F28D 1/03 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec des canalisations en forme de plaques ou de laminés
F28F 3/08 - Éléments construits pour être empilés, p. ex. pouvant être séparés pour leur nettoyage
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F28D 9/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les sources de potentiel calorifique se déplaçant l'une par rapport à l'autre suivant un angle
c) formed between the heat-transfer-tube insertion hole (10) and the downstream flange (13) so as to protrude alternately from both surfaces of the heat transfer fin (1).
F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
F28F 1/32 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et s'étendant transversalement les moyens ayant des parties engageant d'autres éléments tubulaires
F28F 1/42 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements les moyens étant à la fois à l'extérieur et à l'intérieur de l'élément tubulaire
F28F 1/10 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements
F28F 1/12 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
The exhaust duct includes an exhaust collecting portion connected a heat exchanger and an exhaust guiding portion communicating with the exhaust collecting portion and extended upward in a state close to a side of a cylindrical body of the heat exchanger. The exhaust collecting portion includes a connection opening constituting an inner peripheral wall, into which a cylindrical outlet side connection portion at the lower end of the heat exchanger is fitted, and a groove provided on an outer peripheral side than the inner peripheral wall of the connection opening. The packing includes a seal portion sandwiched in a compressed state between the inner peripheral wall of the connection opening in the exhaust collecting portion and an outer peripheral wall of the cylindrical outlet side connection portion in the heat exchanger to constitute a seal and an anchor portion inserted into the groove of the exhaust collecting portion.
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
F28F 9/00 - CartersBoîtes de distributionSupports auxiliaires pour les élémentsÉléments auxiliaires dans les carters
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
F24H 9/14 - Raccordement de sections différentes, p. ex. dans les chauffe-eau
A heat exchanger (1) includes a heat exchanging body (20) disposed within an outer box (10). A supply pipe (21) and a discharge pipe (22) in fluid communication with the heat exchanging body (20) respectively extend through first and second insertion holes (31, 32) in the outer box (10). Elastic seal members (40; 240) are respectively provided around the supply pipe (21) and the discharge pipe (22) and between a first sidewall (11) of the outer box (10) and the heat exchanging body (20). At least one biasing member (50; 250) exerts a lateral biasing force (F1; F2) on the elastic seal members (40; 240), thereby maintaining the elastic seal members (40; 240) in a state of compressive deformation and contacting the outer box (10) and the heat exchanging body (20) in an air-tight manner to block potential leakage paths (LP1; LP2) via the insertion holes (31, 32).
F28F 9/00 - CartersBoîtes de distributionSupports auxiliaires pour les élémentsÉléments auxiliaires dans les carters
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F16L 5/10 - Scellement en utilisant uniquement des segments ou des manchons d'étanchéité
F16L 41/08 - Raccordements des tuyaux aux parois ou à d'autres tuyaux, dans lesquels l'axe du tuyau est perpendiculaire au plan de la paroi ou à l'axe de l'autre tuyau
F24H 9/13 - Raccordement des éléments chauffants, de transfert ou de production de chaleur aux tuyauteries de circulation pour appareils de chauffage de l’eau
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
F28F 9/007 - Supports auxiliaires pour les éléments
F16L 21/035 - Raccords avec manchon ou douille avec segments d'étanchéité élastiques entre le tuyau et le manchon ou entre le tuyau et la douille, p. ex. avec des segments roulants ou autres segments profilés préfabriqués placés sur l'extrémité mâle avant la fixation
F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
F24H 8/00 - Appareils de chauffage de fluides caractérisés par des moyens pour extraire par condensation la chaleur latente des fumées
F16L 19/07 - Raccords dans lesquels les surfaces d'étanchéité sont maintenues en contact par un organe, p. ex. un écrou à oreilles vissé dans, ou vissé sur une des parties du raccord dans lesquels le serrage radial est obtenu par une action de coincement entre les extrémités non déformées du tuyau conçus pour les raccordements à douille ou à manchon
F24H 9/20 - Disposition ou montage des dispositifs de commande ou de sécurité
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
F02M 26/06 - Boucles à basse pression, c.-à-d. dans lesquelles le gaz d’échappement recyclé est pris du système d’échappement en aval de la turbine du turbocompresseur et réintroduit dans le système d’admission en amont du compresseur
99.
Heat exchanger with a plurality of non-communicating gas vents
The heat exchanger (1) has a plurality of heat exchange units (10) stacked in a direction of a gas flow passage of combustion exhaust gas, each of the heat exchange units (10) includes an internal space (14) through which a fluid to be heated flows, a plurality of gas vents (13) penetrating the internal space (14) in a non-communicating state and through which the combustion exhaust gas passes, and an inwardly directed step portion (17) reducing a height of the internal space (14) between adjacent gas vents (13).
F28F 13/12 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique en créant une turbulence, p. ex. par brassage, par augmentation de la force de circulation
F28F 3/04 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens faisant partie intégrante de l'élément
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
A blower fan including an impeller easily mounted on the rotational shaft of a motor generates less noise. The impeller is mounted on the rotational shaft of the motor using a fastener with an elastic vibration isolator and a washer in between. The washer has a predetermined shape including radial projections from a circumference about a central receiving hole. The vibration isolator has the predetermined shape larger than the predetermined shape of the washer, and has a first recess having the predetermined shape on its top surface to receive the washer fittingly. The impeller has a second recess having the predetermined shape on its top surface to receive the vibration isolator fittingly. The vibration isolator thus separates the impeller mounted on the rotational shaft from the washer in both the axial and rotational directions of the motor to reduce vibrations in both directions propagating to the impeller, generating less noise.
