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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 9032. Отображено 100.
09-02-2012 дата публикации

Rotary Valve Arranged in Multi-Gas Cooker

Номер: US20120031391A1
Автор: Iñigo Albizuri
Принадлежит: Coprecitec SL

A cooking appliance equipped with at least one regulating valve having a rotary regulator organ. The rotary regulator organ has an actuating shaft a plurality of peripheral openings adapted for regulating a flow of gas through the regulating valve. In a first angular position the rotary regulator organ is adapted to supply a constant flow Qmin of a first type of fuel through a first peripheral opening. In a second angular position, successive to the first angular position, the rotary regulator organ is adapted to supply a constant flow Qmin of a second type of fuel through a second peripheral opening. In one implementation a feature that rotates with the actuating shaft is adapted to engage a feature on the cooking appliance to limit the rotation of the rotary regulator organ to the first angular position.

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12-07-2012 дата публикации

Low NOx Gas Burners With Carryover Ignition

Номер: US20120178032A1
Принадлежит: Carrier Corp

A gas burner for low NOx gas furnaces is disclosed with improved flame carryover for igniting one or more adjacent burners. The burner includes a burner tube that receives a mixture of fuel and air. The burner tube is coupled to an outlet. The outlet includes a primary outlet opening which is in communication with at least one transverse slot for communicating a flame to at least one adjacent burner. The primary outlet opening may be elliptical and the outlet further may also include a concave outer face through which the primary outlet opening extends. The at least one slot may include a pair of oppositely directed transverse slots extending outward from the primary outlet opening along a semi-minor axis of the primary outlet opening.

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13-09-2012 дата публикации

Combustion chamber having a ventilated spark plug

Номер: US20120227373A1
Принадлежит: SNECMA SAS

A combustion chamber of a gas turbine engine including a wall, a well secured to the wall, the well forming a recess for a spark plug leading into the combustion chamber, and a spark-plug guide mounted on the well to be transversally mobile relative to the axis of the well, the spark-plug guide including a cylindrical wall portion for guiding and supporting the spark plug and a seal ring mounted such as to engage slidably with a bearing surface of the well. In the combustion chamber the spark-plug guide includes a cooling chamber having openings for supplying cooling air to the chamber.

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27-09-2012 дата публикации

Gas combustor and safety actuating device thereof

Номер: US20120244480A1
Автор: Chih-Lin Tsai
Принадлежит: Individual

The present invention relates to a gas combustor, which comprises a storage tank, a connect seat allowing an ignition device and a combustion device to be installed, and a housing. The rear of the connection seat is formed with an accommodation slot in sequence allowing a piezoelectric device of the ignition device and a pressable button member to be installed and positioned, the front of the button member is protruded with a push sheet. Two clamp arms at the front of the connection seat define an insertion slot allowing an insertion tenon fixed at the rear of a mixing tube of the combustion device to be inserted and positioned, such that the mixing tube and the piezoelectric device are in contact. The mixing tube is formed with at least an air inlet hole, and the front and the rear thereof are respectively installed with an ejection nozzle connected to one end of a gas conveying tube and a flame nozzle, and an electric conduction wire of the piezoelectric device is arranged at the periphery of the flame nozzle at intervals. Through pressing the button member, the gas discharge nozzle of the storage tank is enabled to supply combustion gas, and the electric conduction wire at the lateral side of the flame nozzle generates static electric sparks for igniting the mixed combustion gas ejected from the flame nozzle.

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11-10-2012 дата публикации

Automated torch

Номер: US20120258412A1
Автор: Kaz Jackow
Принадлежит: Individual

An automated torch for generating and sustaining a flame is provided that includes a head, the head including a burning chamber, a pole, a computer module, at least one fuel supply tube, a valve, a diffuser assembly and an igniter/sensor.

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01-11-2012 дата публикации

Burner and combustion device comprising said burner

Номер: US20120276490A1
Принадлежит: Hysytech Srl

The burner ( 1 ) according to the invention comprises a main body ( 10 ) provided with an operating cavity ( 11 ) open at least on a first side. The burner also comprises first feed means ( 20 ) arranged to introduce a flow of a first reagent (for example combustion air) into said cavity and second feed means ( 31 ) are arranged to introduce a flow of a second reagent (for example fuel) into the same operating cavity. The first means are configured so as to introduce the first reagent according to a tangential direction, while the second means are configured to introduce the second reagent according to a direction parallel to the direction in which the cavity extends. According to the invention the operating cavity comprises a first portion between the intake position of the first reagent and the intake position of the second reagent. This first portion defines a stabilization chamber of the flow of the first reagent. The operating cavity also comprises a second portion defining a combustion chamber downstream of the intake position of the second reagent.

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29-11-2012 дата публикации

Plate type burner

Номер: US20120301837A1
Автор: Kazuyuki Akagi
Принадлежит: Rinnai Corp

A plate type burner includes a burner main body and a plurality of burning plates mounted on the open surface of the burner main body. A flange portion enclosing the open surface is formed on the upper surface of the burner main body. The outer edge of each of the burning plates is placed on the flange portion with a sheet of packing interposed therebetween. The outer edge of each of the burning plates is pressed downward by a pressing plate. A clamping plane inclining downward to the outer side is formed on the upper surface of the outer edge of each of the burning plates. Furthermore, an inclined abutting portion contacting the clamping plane of each of the burning plates by a plane of the abutting portion is formed in the pressing plate.

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06-12-2012 дата публикации

System for conditioning flow through a combustor

Номер: US20120305670A1
Принадлежит: General Electric Co

A system for conditioning flow through a combustor includes a nozzle, and a shroud circumferentially surrounds at least a portion of the nozzle. The shroud defines an upstream opening, and a plurality of vanes extends radially inward from the shroud. A circumferential slot extends through the shroud between the upstream opening and the plurality of vanes.

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14-02-2013 дата публикации

Multi-fuel injection nozzle

Номер: US20130036740A1
Автор: Jianfan Wu, Ulrich Woerz
Принадлежит: Siemens Energy Inc

A multi-fuel nozzle ( 90 ) for a gas turbine engine. The nozzle includes: an annular main body ( 68 ) having a plurality of fuel gas channels ( 22 ), all disposed circumferentially about a main body longitudinal axis ( 14 ); an annular fuel oil body ( 30 ) disposed within the annular main body ( 68 ) and having a central oil channel ( 36 ) coaxial with the main body longitudinal axis ( 14 ); an annular cooling air channel ( 42 ) between the annular main body ( 68 ) and the fuel oil body ( 30 ); a discrete cooling air body ( 70, 100 ) having a guide ( 74, 104 ), the guide ( 74, 104 ) supported independent of a downstream end ( 84 ) of the main body ( 68 ) and configured to direct cooling air traveling downstream in the annular cooling air channel ( 42 ) radially inward at a location immediately downstream of a central oil channel downstream end ( 34 ).

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22-08-2013 дата публикации

Coated Porous Metallic Mat

Номер: US20130213045A1
Принадлежит: Solar Turbines Inc

A porous metallic mat is provided. The porous metallic mat includes a plurality of fibers and a protective coating. The plurality of fibers is sintered into a mat configuration. The protective coating is provided on the porous metallic mat. The protective coating includes a diffusion aluminide configured to provide oxidation resistance to the porous metallic mat.

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03-10-2013 дата публикации

Gas combustor installed and detachable ignition module thereof

Номер: US20130255222A1
Автор: Chin-Lin Tsai
Принадлежит: Individual

The present invention relates to a gas combustor, which includes a casing unit of the gas combustor and a detachable ignition module, the detachable ignition module is to have an igniter being modularized as a single unit, thereby being enabled to be inserted in or removed from an insertion slot preformed on a surface of the casing unit of the gas combustor, and a cathode connecting joint and a anode connecting joint of the detachable ignition module are respectively in contact with or separated from an electric conductive wire installed in the insertion slot, thereby establishing or terminating an electric connection, so the inconvenience and possible danger of replacing the igniter by the user himself is avoided.

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09-01-2014 дата публикации

Gas burner for premixed combustion

Номер: US20140011142A1
Автор: Pierluigi Bertelli
Принадлежит: Bertelli and Partners Srl

A gas burner for premixed combustion is positioned in a combustion chamber and comprises two components, a first defined by a distributor for a gas and air mixture and the second defining the burner shell. The components being close together but spaced apart. The distributor has a perforated distribution surface through which the gas-air mixture passes directed towards the burner shell, which also has a perforated burning surface on which the flame caused by the combustion of said mixture is generated, to create a thermal load within the combustion chamber. The thermal load in this latter is disuniformly distributed.

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20-03-2014 дата публикации

Device for use in burner and method for manufacturing the same

Номер: US20140080079A1
Автор: Tianyi LUO, Yingzhi WANG
Принадлежит: Individual

A device for use in a burner, including a honeycomb body formed from a metal band. The metal band is laminated or coiled to yield a plurality of holes or apertures. The honeycomb body has first and second surfaces which are opposite to each other. The holes or apertures penetrate through the first surface and the second surface, and an outer boundary of the first surface and an outer boundary of the second surface are connected whereby yielding a lateral surface. A through hole is disposed on the lateral surface of the honeycomb body and penetrates inward through multiple layers of adjacent laminated or coiled metal bands, and a metal wire is disposed in the through hole; and/or, a part of the laminated or coiled metal bands on the first surface and/or the second surface are embedded, overlapped and engaged with adjacent metal bands to form an embedded member.

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06-01-2022 дата публикации

BURNER, FURNACE AND METHOD OF GENERATING A FLAME

Номер: US20220003407A1
Автор: Richardson Andrew
Принадлежит: Messer Industries USA, Inc.

A burner includes an oxidant feed passage, a fuel feed passage surrounding the oxidant feed passage, an air feed surrounding the fuel feed passage, a movable air flow diverter and, optionally, a flame nozzle. The movable air flow diverter and/or flame nozzle are independently configured to create one or a plurality of gas recirculation regions adjacent the downstream tip of the burner to improve the mixing and reaction of the fuel and oxidant, and overall combustion process efficiency. A related furnace and method for generating a stable flame with the burner are also provided. 1. A burner comprising:an oxidant feed passage;a fuel feed passage surrounding the oxidant feed passage;an air feed surrounding the fuel feed passage; anda movable air flow diverter positionable in the air feed along at least a portion of the fuel feed passage, and including a side wall constructed to proportion distribution of the air feed.2. The burner of claim 1 , wherein the oxidant feed comprises an oxidant selected from the group consisting of at least one of air claim 1 , oxygen-enriched air claim 1 , non-pure oxygen claim 1 , and industrially pure oxygen.3. The burner of claim 1 , wherein the fuel feed comprises a gaseous fuel selected from the group consisting of at least one of methane claim 1 , natural gas claim 1 , liquefied natural gas claim 1 , propane claim 1 , liquefied propane gas claim 1 , butane claim 1 , low BTU gases claim 1 , town gas claim 1 , producer gas claim 1 , hydrogen claim 1 , carbon monoxide claim 1 , and mixtures thereof.4. The burner of claim 1 , wherein the fuel feed comprises an atomized liquid fuel selected from the group consisting of at least one of heavy fuel oil claim 1 , medium fuel oil claim 1 , light fuel oil claim 1 , kerosene claim 1 , diesel claim 1 , and mixtures thereof.5. The burner of claim 1 , wherein the fuel feed comprises a particulate solid fuel selected from the group consisting of at least one of coal claim 1 , coke claim 1 , petroleum ...

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06-01-2022 дата публикации

COMBUSTOR NOZZLE, COMBUSTOR, AND GAS TURBINE INCLUDING SAME

Номер: US20220003415A1
Принадлежит:

A combustor nozzle capable of injecting fuel uniformly, a combustor including the combustor nozzle, and a gas turbine including the combustor are provided. The combustor nozzle includes a premix passage in which air and fuel are mixed, wherein the premix passage includes a plurality of pegs configured to inject fuel and guide an air flow and a plurality of mixing bars configured to mix air and fuel injected from the plurality of pegs, the mixing bar having a twisted structure. 1. A combustor nozzle comprising:a premix passage in which air and fuel are mixed,wherein the premix passage includes a plurality of pegs configured to inject fuel and guide an air flow and a plurality of mixing bars configured to mix air and fuel injected from the plurality of pegs, the mixing bar having a twisted structure.2. The combustor nozzle according to claim 1 , further comprising:a main cylinder having a fuel passage through which fuel flows; anda nozzle shroud surrounding the main cylinder,wherein the plurality of pegs and the plurality of mixing bars are disposed inside the main cylinder.3. The combustor nozzle according to claim 2 , wherein the plurality of pegs and the plurality of mixing bars are arranged around a circumference of the main cylinder.4. The combustor nozzle according to claim 3 , wherein each of the plurality of mixing bars comprises a twist part and a first plate part fixed to a front side of the twist part claim 3 , wherein a rear side of the twist part is fixed to a front side of the peg.5. The combustor nozzle according to claim 4 , wherein the twist part of each of the plurality of mixing bars has a first section rotated 180 degrees and a second section positioned in front of the first section and rotated 180 degrees claim 4 , wherein the second section is formed to be longer than the first section.6. The combustor nozzle according to claim 3 , wherein a twist guide is disposed between the plurality of mixing bars in the main cylinder claim 3 , wherein the ...

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05-01-2017 дата публикации

METHOD AND BURNER FOR REDUCING NITROGEN OXIDE EMISSIONS DURING THE COMBUSTION OF A GASEOUS FUEL

Номер: US20170003018A1
Автор: SEDMAK Patrice
Принадлежит:

A method for reducing nitrogen oxide NOx emissions during combustion of a gaseous fuel in a burner intended for a naked-flame or controlled-atmosphere reheating furnace, for reheating steel products or for continuous coating and/or annealing of metal strips, wherein a first dilution is carried out by mixing combustion air with combustion products upstream from or in the body of the burner, and a second dilution is carried out directly at the level at which the gaseous fuel reacts with the combustion air, mixing the fuel with a recirculated portion of the flame or products of partial combustion, the double dilution enabling the physical and chemical properties of the gas to be modified in order for the burner to operate with low oxygen rates and obtain a flame that produces a very low level of NOx production regardless of the temperature of the enclosure in which the combustion takes place. 1. A process for reducing the emission of nitrogen oxides NOx during the combustion of a gaseous fuel in a burner intended for an direct flame or controlled-atmosphere reheating furnace , for reheating steel products or for continuous coating and/or annealing of metal strips , especially steel strips , according to which process a first dilution is achieved by mixing combustion air with combustion products upstream of the burner or in the body of the burner ,wherein a second dilution is achieved by mixing the fuel with a recirculated portion of the flame or the partial combustion products, this double dilution resulting in the modification of the physical and chemical characteristics of the gas for a stable operation of the burner, in particular with a highly diluted oxidant having an oxygen content close to 10% by volume, for the purpose of reducing the production of NOx, this being for all the operating temperatures of the chamber in which the combustion takes place.2. The process as claimed in claim 1 , wherein the second dilution is achieved by injecting at least two gaseous ...

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05-01-2017 дата публикации

DUAL TRIM VALVE CARTRIDGE AND SYSTEM

Номер: US20170003023A1
Принадлежит:

A valve system having a dual trim valve assembly capable of using a single valve assembly to provide fuel in a plurality of modes for at least a main burner operation mode and a parallel pilot operation mode. 1. A dual trim valve apparatus , the apparatus comprising:a main body having an inlet and one or more outlets;a first main valve control seat located within the main body;a second bypass valve control seat also located within the main body;a main control plug positioned within the main body and configured to selectively seal against the first main valve control seat;a bypass control plug positioned within the main body and configured to seal against the first main valve control seat;a main fluidic channel connecting the inlet to at least one outlet, the main fluidic channel providing fluid communication between the inlet and the at least one outlet, the main fluidic channel being sealed when the main control plug is sealed against the first main valve control seat; anda bypass fluidic channel connecting the inlet to at least one outlet, the bypass fluidic channel providing fluid communication between the inlet and the at least one outlet, the bypass fluidic channel being configured to selectively seal when the bypass control plug is sealed against the second bypass valve control seat.2. The apparatus of claim 1 , further comprising:a seat cartridge containing the first main valve control seat disposed within a perimeter portion of the seat cartridge, the seat cartridge also containing the second bypass valve control seat about a central portion, the seat cartridge being engageable with an interior portion of the main body.3. The apparatus of claim 2 , wherein the seat cartridge further includes at least one fluidic channel configured to provide fluid communication from the bypass fluidic channel to an exterior portion of the seat cartridge.4. The apparatus of claim 1 , further comprising a stem assembly claim 1 , the stem assembly further comprising;a stem ...

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07-01-2016 дата публикации

FLAT-FLAME NOZZLE FOR BURNER

Номер: US20160003472A1
Принадлежит:

According to the present disclosure, a flat-flame nozzle is provided for producing a flat flame in a flame chamber included in a burner assembly. The flat-flame nozzle is configured to conduct fuel from a fuel supply to an ignition zone in the flame chamber. In some illustrative embodiments, the flat-flame nozzle is also configured to conduct oxygen from an oxygen supply to the ignition zone to produce a combustible oxygen-fuel mixture in the flame chamber. In illustrative embodiments, a removable first plate-separation border frame is positioned to lie between a first lower plate and a companion first upper plate. This border frame is configured to cooperate with those plates to form in the flat-flame nozzle a fuel-discharge outlet and a fuel-transport passageway communicating with the fuel-discharge outlet. 1. A burner apparatus comprisinga flat-flame nozzle configured to conduct fuel and to provide means for generating a flat flame when fuel conducted by the flat-flame nozzle is exposed to oxygen to produce an oxygen-fuel mixture that is ignited, wherein the flat-flame nozzle is formed to include a fuel-discharge outlet and a fuel-transport passageway communicating with the fuel-discharge outlet, and the flat-flame nozzle includes a first lower plate, a first upper plate, a removable first plate-separation border frame interposed between the first lower plate and the first upper plate and configured to cooperate with the first lower plate and the first upper plate to form the fuel-discharge outlet and the fuel-transport passageway, and fastener means for releasably retaining the removable first plate-separation border frame in a stationary position between the first lower plate and the first upper plate to establish a first flow velocity of fuel flowing through the fuel-transport passageway toward the fuel-discharge outlet and for allowing replacement of the removable first plate-separation border frame with a removable alternate first plate-separation border ...

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07-01-2016 дата публикации

BURNER

Номер: US20160003476A1
Принадлежит:

The purpose of the present invention is to provide a proportionally controlled burner that omits as many mechanical components as possible, reducing power consumption, and minimizes the amount of heat lost via a flue. To that end, in the present invention, a high-speed solenoid valve () is provided in a fuel-supply system (Lf); said high-speed solenoid valve () has the ability to open when an inputted pulse signal is on and close when said pulse signal is off; an oxygen-concentration sensor () that is located on the combustion-exhaust side and measures the oxygen concentration of a flue gas is provided, as is a control device () to which measurement results from said oxygen-concentration sensor () are sent; and said control device () has the ability to change the frequency of an inverter () and regulate the amount of combustion air such that the flue-gas oxygen concentration detected by the oxygen-concentration sensor () approaches zero. 1. A burner comprising a fuel supply system and an air supply system ,wherein the fuel supply system includes a fuel supply pump disposed thereto, a high-speed solenoid valve is provided in a region on an injection side of the fuel supply pump in the fuel supply system, the high-speed solenoid valve has a function to open when a pulse signal input thereto is ON and a function to close when the signal is OFF, and an inverter is disposed to a power supply circuit of a drive motor which drives the fuel supply pump, andthe air supply system has a blast fan for air supply, and the inverter is disposed to the power supply circuit of the drive motor which drives the blast fan for air supply.2. The burner according to claim 1 ,wherein a nozzle is arranged on a discharge side of the high-speed solenoid valve provided in the fuel supply system.3. The burner according to claim 1 ,wherein the burner comprises an oxygen concentration sensor which is arranged on the discharge side of the high-speed solenoid valve and measures oxygen concentration ...

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04-01-2018 дата публикации

FUEL COMBUSTION SYSTEM WITH A PERFORATED REACTION HOLDER

Номер: US20180003378A1
Принадлежит:

A combustion system such as a furnace or boiler includes a perforated reaction holder configured to hold a combustion reaction that produces very low oxides of nitrogen (NOx). 1. A combustion system , comprising:a fuel and oxidant source configured to output fuel and oxidant into a combustion volume; anda perforated reaction holder disposed in the combustion volume and including fibers that define a plurality of perforations aligned to receive a mixture of the fuel and oxidant from the fuel and oxidant source and to support a combustion reaction of the fuel and oxidant within the perforations.2. The combustion system of claim 1 , wherein the fibers are reticulated fibers.3. The combustion system of claim 2 , wherein the reticulated fibers are reticulated ceramic fibers.4. The combustion system of claim 3 , wherein the perforations are branching perforations that weave around and through the reticulated fibers.5. The combustion system of claim 1 , wherein the reticulated fibers include cordierite.6. The combustion system of claim 1 , wherein the reticulated fibers include mullite.7. The combustion system of claim 1 , wherein the fuel and oxidant source includes a fuel nozzle configured to output the fuel into the combustion volume.8. A combustion system claim 1 , comprising:a fuel and oxidant source configured to output fuel and oxidant into a combustion volume; an input surface;', 'an output surface;', 'a plurality of fibers defining a plurality of perforations extending between the input surface and the output surface, wherein the perforated reaction holder is aligned to receive a mixture of the fuel and oxidant into the perforations and to support a combustion reaction of the fuel and oxidant within the perforations., 'a perforated reaction holder including9. The combustion system of claim 8 , wherein the fibers are reticulated fibers.10. The combustion system of claim 9 , wherein the reticulated fibers are reticulated ceramic fibers.11. The combustion system of ...

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04-01-2018 дата публикации

HIGH TURN-DOWN MODULATING BURNER

Номер: US20180003380A1
Принадлежит:

A high turn-down burner adapted to receive a fuel flow for combustion including an outer housing including a central axis, a side wall having a top edge and a bottom edge, a plurality of apertures disposed on the side wall, a top wall adjoining the side wall at the top edge and a bottom wall adjoining the side wall at the bottom edge; an inner housing including a central axis, a side wall, a plurality of apertures disposed on the side wall, the inner housing is coaxially rotatable with respect to the outer housing; and an actuator adapted to harness and convert the power exerted by the fuel flow to a movement of the inner housing with respect to the outer housing, wherein the alignment of the apertures of the inner and outer housings is adapted to modify an effective combustion area of the burner. 1. A high turn-down burner adapted to receive a fuel flow for combustion , said burner comprising:(a) an outer housing comprising a central axis, a side wall having a top edge and a bottom edge, a plurality of apertures disposed on said side wall, a top wall adjoining said side wall at said top edge and a bottom wall adjoining said side wall at said bottom edge;(b) an inner housing comprising a central axis, a side wall, a plurality of apertures disposed on said side wall, wherein said inner housing is configured to be coaxially inserted in said housing such that said inner housing is coaxially rotatable with respect to said outer housing; and(c) an actuator adapted to harness and convert the power exerted by the fuel flow to a rotation of said inner housing with respect to said outer housing,wherein the alignment of said plurality of apertures of said inner housing and said plurality of apertures of said outer housing are configured such that said rotation is adapted to modify an effective combustion area of said burner which is defined by the amount of overlap between said plurality of apertures of said inner housing and said plurality of apertures of said outer housing. ...

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02-01-2020 дата публикации

Smart Candle Platform And System

Номер: US20200003412A1
Автор: Bianchini Jamie
Принадлежит:

A Smart Candle Platform may be configured to produce candle light using a natural wax candle as its fuel source or any other fuel source capable of producing light, including liquid fuels if so configured. The outer shell, inner cover, top cover and base provides a beautiful exterior shell which does not melt but emulates the look of a traditional pillar candle. The outer shell may be changeable/replaceable allowing for style and or seasonal changes. A Smart Candle Platform having multiple interactive systems and sensors for production of natural light via a safe, controllable device which may communicate with other similar configured devices or smart devices having application software embedded therein i.e. a smart phone having an app. is disclosed. The Smart Candle Platform may be configured to allow for auto-extinguishment. The Smart Candle Platform may be configured to allow for the addition of smells or scents. 1. A living flame candle platform formed to emulate a traditional pillar candle in appearance comprising:a) an outer shell having a hollow interior connecting an upper end and a lower end and forming a first opening therein; i. a support frame, with an upper opening connected to a lower opening to form a hollow interior;', 'ii. a protective cover, with an upper opening connected to a lower opening to form a hollow interior, the protective cover configured to engage with and surround the support frame;', 'iii. a shell support, with an upper opening connected to lower opening to form a hollow interior, the shell support positioned between the protective cover and the outer shell;', 'iv. a fuel source configured as a cartridge and positioned in the support frame of the inner cover; and,', 'v. a base adapted for cooperative engagement with the lower end of the outer shell and the lower end of the inner cover and upon which the cartridge may rest, the base adapted to enclose the cartridge., 'b) an inner cover positioned interior the outer shell, the inner ...

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07-01-2021 дата публикации

GAS COOKING ASSEMBLY AND A HOB COMPRISING THE SAME

Номер: US20210003287A1
Принадлежит:

A gas cooking assembly comprises: (a) a base part () comprising: (a1) a burner body () for installation in a cooktop surface (); (a2) a gas outlet () in the burner body (); and (a3) an ignition source () in the burner body (); and (b) an upper part () comprising: (b1) at least one foot () for supporting the upper part () on the cooktop surface (); (b2) a grate () for supporting a cooking vessel; (b3) an annular flame spreader (); and (b4) a gas inlet () at the bottom side of the flame spreader (); wherein the upper part () is an integral unit that is removable from the base part (), wherein when the upper part () is connected to the base part (), the gas inlet () of the upper part () connects to the gas outlet () of the base part (). 1. A gas cooking assembly comprising:(a) a base part comprising:(a1) a burner body for installation in a cooktop surface;(a2) a gas outlet in the burner body; and(a3) an ignition source in the burner body; and(b) an upper part comprising:(b1) at least one foot for supporting the upper part on the cooktop surface;(b2) a grate for supporting a cooking vessel;(b3) an annular flame spreader; and(b4) a gas inlet at a bottom side of the flame spreader;wherein the upper part is an integral unit that is removable from the base part, wherein when the upper part is connected to the base part, the gas inlet of the upper part connects to the gas outlet of the base part.2. The gas cooking assembly of claim 1 , wherein the grate comprises an annular disk which interposes the flame spreader and which carries a plurality of bars for supporting a cooking vessel.3. The gas cooking assembly of claim 2 , wherein a plurality of legs are attached to the annular disk claim 2 , each said leg having a foot for supporting the upper part on the cooktop surface.4. The gas cooking assembly of claim 3 , wherein the bars extend outwardly beyond the annular disk and merge into the legs.5. The gas cooking assembly of claim 3 , wherein the legs are sized to provide for ...

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03-01-2019 дата публикации

STARTUP METHOD AND MECHANISM FOR A BURNER HAVING A PERFORATED FLAME HOLDER

Номер: US20190003705A1
Принадлежит:

According to an embodiment, a combustion system is provided, which includes a nozzle configured to emit a diverging fuel flow, a flame holder positioned in the path of the fuel flow and that includes a plurality of apertures extending therethrough, and a preheat mechanism configured to heat the flame to a temperature exceeding a startup temperature threshold. 1. A burner , comprising:a primary nozzle having a longitudinal axis and configured to emit a fuel flow;a primary flame holder having first and second faces and a plurality of apertures extending through the flame holder from the first face to the second face, positioned with the first face toward the nozzle and intersecting the longitudinal axis of the nozzle; anda preheat mechanism configured to preheat the primary flame holder.2. The burner of claim 1 , wherein the preheat mechanism includes an electrically resistive element.3. The burner of claim 2 , wherein the electrically resistive element is integral with the primary flame holder.4. The burner of claim 2 , wherein the electrically resistive element is coupled to one of the first and second faces of the primary flame holder.5. The burner of claim 2 , wherein the electrically resistive element is coupled to a lateral surface of the primary flame holder.6. The burner of claim 2 , wherein the electrically resistive element is interleaved through a number of the plurality of apertures of the primary flame holder.7. The burner of claim 2 , wherein the electrically resistive element is encapsulated by the primary flame holder.8. The burner of claim 2 , wherein the electrically resistive element is a component of a material of the primary flame holder.9. The burner of claim 1 , wherein the preheat mechanism includes an electrically inductive element.10. The burner of claim 9 , wherein the electrically inductive element is integral with the primary flame holder.11. The burner of claim 9 , wherein the electrically inductive element is coupled to one of the first ...

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03-01-2019 дата публикации

AIR-SHIELDED FUEL INJECTION ASSEMBLY TO FACILITATE REDUCED NOX EMISSIONS IN A COMBUSTOR SYSTEM

Номер: US20190003713A1
Принадлежит:

An air-shielded fuel injection assembly for use in a combustion chamber of a turbine assembly. The air-shielded fuel injection assembly generally includes a fuel manifold including a plurality of fuel injection ports and an air manifold including a plurality of air injection ports. Each of the plurality of fuel injection ports is configured to introduce a fuel column into an annular cavity of a mixer assembly. Each of the plurality of air injection ports is configured to introduce an air curtain about an associated fuel injection column to minimize recirculation upstream of the fuel injection column and increase penetration of the fuel injection column into the cavity. Also disclosed are a mixer assembly and a turbine assembly including the air-shielded fuel injection assembly. 1. An air-shielded fuel injection assembly for use in a combustion chamber of a turbine , the assembly comprising:a fuel manifold including a plurality of fuel injection ports, each fuel injection port configured to inject a fuel radially outward into an annular cavity of a mixer assembly to introduce a fuel injection column extending radially outward into the annular cavity; andan air manifold including a plurality of air injection ports, each air injection port associated with a fuel injection port of the plurality of fuel injection ports and wherein each air injection port is separated from the associated fuel injection port by a distance, each air injection port configured to inject a flow of air radially outward into the annular cavity of the mixer assembly and downstream of the plurality of fuel injection ports, to introduce a downstream air curtain extending radially outward into the annular cavity and downstream of an associated fuel injection column, to minimize recirculation of the fuel injection column and an upstream swirl crossflow and increase penetration of the fuel injection column into the annular cavity.2. The air-shielded fuel injection assembly as claimed in claim 1 , ...

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13-01-2022 дата публикации

CYLINDRICAL BURNER APPARATUS AND METHOD

Номер: US20220010957A1
Автор: Shaffer Yul E.
Принадлежит:

A cylindrical burner apparatus and method which produce low NOemissions and low noise levels without being dependent upon a blower, or natural draft, for providing air flow or flue gas recirculation. A flow of combustion air is induced into the initial tube pass of the burner by discharging a gas fuel from a plurality of discharge ports located in the initial tube pass. At the same time, a flow of recycled flue gas is induced through a bypass duct between a subsequent tube pass of the burner and the initial tube pass by discharging one or more jets of gas fuel through the bypass duct. 1. A cylindrical burner apparatus comprising:an initial tube pass having a longitudinal axis and a rearward end;a first fuel ejection structure or assembly, or an array of ejector elements, comprising a plurality of primary fuel jet discharge ports positioned in the initial tube pass forwardly of the rearward end, at least some of the primary fuel jet discharge ports discharging jets of a gas fuel which induce a flow of combustion air into the initial tube pass through the rearward end:a subsequent tube pass downstream of the initial tube pass;a flue gas recirculation duct having an inlet in fluid communication with an interior of the subsequent tube pass and a discharge in fluid communication with an interior of the initial tube pass; anda second fuel ejection structure or assembly, or an array of ejector elements, comprising one or more secondary fuel jet discharge ports, each of the one or more secondary fuel jet discharge ports discharging a jet of the gas fuel which induces a flow of a recycled flue gas through the flue gas recirculation duct from the interior of the subsequent tube pass to the interior of the initial tube pass.2. The cylindrical burner apparatus of further comprising:the primary fuel jet discharge ports being located in the initial tube pass downstream of the discharge of the flue gas recirculation duct andthe secondary fuel jet discharge ports being positioned ...

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20-01-2022 дата публикации

INSECT REPELLENT TORCH CONVERSION KIT ENABLING AUTOMATIC FUEL REPLENISHMENT

Номер: US20220015350A1
Автор: Pannullo Joseph
Принадлежит:

A kit for converting an insect repelling torch to enable remote refueling while in operation includes a fuel insert sealed at opposite ends to a fuel pipe and to a wick. This fuel insert is installed within the torch with the wick extending upward into the combustion area, and the fuel pipe extending below the torch. The fuel pipe is connected to the automatic refueling system. In embodiments, the fuel insert can be compressed for insertion through a port into the torch and re-expansion within the torch. Or the fuel insert can be rigid, and can replace a removable fuel canister of the torch. Embodiments can convert previously manufactured torches, and/or can be implemented in the manufacture of new torches otherwise based on conventional designs. Embodiments include fuel level sensors, flame ignitors, fuel valves, local controllers, wireless communication with a remote computing device, batteries, and/or solar cells. 1. An automatic refueling conversion kit applicable to an insect repellent torch , wherein the insect repellent torch includes a fuel tank configured to contain an insect repellent fuel and a wick port through which a wick can extend from within the fuel tank to a combustion area above the insect repellent torch , the conversion kit comprising:a fuel insert configured to contain the insect repellent fuel within an interior of the insect repellent torch;a fuel delivery pipe;a fuel delivery seal configured to seal a proximal fuel opening of the fuel insert to a distal end of the fuel delivery pipe; anda wick seal configured to seal a distal wick opening of the fuel insert to a wick;wherein the wick is configured to extend upward and out from the interior of the insect repellent torch through an upper opening provided in the insect repellent torch.2. The conversion kit of claim 1 , wherein the fuel insert includes a resilient material and/or construction that can be compressed for insertion through an insertion port provided in the insect repellent torch ...

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12-01-2017 дата публикации

Method for monitoring a combustor

Номер: US20170009598A1
Принадлежит: SIEMENS AG

A method for monitoring a combustor comprising: measuring several times a distance between a first wall of the combustor and either a second wall of the combustor or a sensor of the combustor by the sensor, and concluding from a variation in the distances a formation of deposit on the first and/or second wall and/or sensor, and/or a temperature change within the combustor, and/or a pressure change within the combustor.

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12-01-2017 дата публикации

GAS-BURNING APPLIANCE AND GAS FIREPLACE

Номер: US20170010001A1
Принадлежит:

A gas-burning appliance includes a combustor and a flow guide device engaged with the combustor. The combustor has a gas outlet. The flow guide device includes a separator and two stop plates. The separator has an opening. Each of the stop plates is located at the opening, and a top edge thereof is higher than a top surface of the separator. The combustor is located below the separator with the gas outlet corresponding to a space between the stop plates. The flow guide device has at least one first air inlet, which is located below the separator, and communicates with the space between the stop plates. A gas fireplace includes a firebox, a translucent shield, and the gas-burning appliance. A separator divides the firebox into an air chamber, which receives the combustor, and a combustion chamber. Whereby, the visibility of flame and the combustion efficiency could be improved. 1. A gas-burning appliance , comprising:a combustor adapted to burn gas, wherein the combustor is long, and has a gas outlet provided in a major axial direction thereof; anda flow guide device engaged with the combustor, wherein the flow guide device includes a laterally provided separator and two stop plates facing each other; the separator has a long opening; each of the stop plates is long, and is located at the opening, wherein a top edge of each of the stop plates is higher than a top surface of the separator; the combustor is located below the separator, with the gas outlet corresponding to a space between the stop plates; the flow guide device further has at least one first air inlet located below the separator, wherein the at least one first air inlet communicates with the space between the stop plates.2. The gas-burning appliance of claim 1 , wherein the at least one first air inlet of the flow guide device comprises a plurality of first air inlets; the flow guide device comprises a plurality of first separating plates located below the separator claim 1 , wherein the first separating ...

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11-01-2018 дата публикации

GAS STOVE PROVIDED WITH ANTI-DRY-BURNING DEVICE

Номер: US20180010803A1
Автор: WU Chengnian

A gas stove equipped with an anti-dry-burning device comprises the anti-dry-burning device and a gas cooker with a flameout protection device. The anti-dry-burning device is arranged at the central position of a combustor of the gas stove and is fixed on the gas stove. The anti-dry-burning device at least comprises a temperature controller, a temperature controller insulating base, a spring, an anti-dry-burning probe body and an anti-dry-burning probe base. The temperature controller is a bimetal thermostat, and is serially connected between an inductive probe of the gas cooker flameout protection device and a gas solenoid valve. The inductive probe of the gas cooker flameout protection device at least comprises a thermocouple and an ion sensor needle. 1. A gas stove comprising:an anti-dry-burning device; anda gas cooker with a flameout protection device, a temperature controller,', 'a temperature controller insulating base,', 'a spring,', 'an anti-dry-burning probe body, and', 'an anti-dry-burning probe base, the temperature controller being a bimetal thermostat and serially connected between an inductive probe of the gas cooker flameout protection device and a gas solenoid valve, and the inductive probe of the gas cooker flameout protection device at least comprising a thermocouple and an ion sensor needle., 'wherein the anti-dry-burning device is arranged at a central position of a combustor of the gas stove and is fixed on the gas stove, the anti-dry-burning device at least comprising2. The gas stove according to claim 1 , wherein the temperature controller insulating base is columnar claim 1 , and at least comprises a temperature sensor mounting groove at the top claim 1 , a spring positioning boss or a positioning groove at the bottom claim 1 , and a temperature controller lead outlet hole at the central position.3. The gas stove according to claim 1 , wherein the anti-dry-burning probe body has a hollow cavity at the upper part of the body for receiving the ...

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10-01-2019 дата публикации

PERFORATED FLAME HOLDER WITH GAPS BETWEEN TILE GROUPS

Номер: US20190011123A1
Принадлежит:

A combustion system includes a fuel and oxidant source that outputs fuel and oxidant, a first perforated flame holder, and a second perforated flame holder separated from the first perforated flame holder by a gap. The first and second perforated flame holders sustain a combustion reaction of the fuel and oxidant within the first and second perforated flame holders. 1. A combustion system , comprising:a fuel and oxidant source configured to output fuel and oxidant; a first perforated flame holder positioned to receive a first portion of the fuel and oxidant and to support a first combustion reaction of the fuel and oxidant within the first perforated flame holder; and', 'a second perforated flame holder positioned to receive a second portion of the fuel and oxidant and to support a second combustion reaction of the fuel and oxidant within the second perforated flame holder;, 'a plurality of perforated flame holders, including at leastthe first and second perforated flame holders being separated by a gap.2. (canceled)3. The combustion system of claim 1 , further comprising a support structure supporting at least the first and second perforated flame holders in a furnace volume claim 1 , wherein the support structure includes a plurality of tube segments claim 1 , at least the first and second perforated flame holders being positioned on the plurality of tube segments.4. The combustion system of claim 3 , wherein the tube segments are silicon carbide tube segments.5. The combustion system of claim 3 , wherein the tube segments each include an inner channel configured to pass a cooling fluid therethrough configured to cool at least one of the perforated flame holders.68.-. (canceled)9. The combustion system of claim 3 , wherein the support structure includes a ceramic structure.1013.-. (canceled)14. The combustion system of claim 1 , wherein the plural perforated flame holders respectively include multiple perforated flame holder tiles joined together in a group.15. ...

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10-01-2019 дата публикации

RADIANT WALL BURNER INCLUDING PERFORATED FLAME HOLDERS

Номер: US20190011124A1
Принадлежит:

A cracking furnace includes a combustion volume defined in part by a burner wall having a refractory lining. A plurality of perforated flame holders is arranged in an array that is spaced away from the wall, with fuel input faces facing the wall. Each of a plurality of fuel nozzles is positioned and configured to emit a fuel stream toward the input face of a respective one of the plurality of perforated flame holders. Combustion reactions, supported by the fuel streams emitted by the fuel nozzles, and held by the flame holders, release heat, which is emitted by the flame holders as thermal (blackbody) radiation, a portion of which impinges upon, and heats the inner face of the refractory lining. Thermal radiation from the flame holders and the wall impinges upon a load positioned in the approximate center of the combustion volume, between burner walls. 1. A combustion system , comprising:a combustion volume defined in part by a wall having an inner face of refractory material;a plurality of perforated flame holders, each having a first face and a second face, the plurality of perforated flame holders being arranged in an array and spaced away from the wall with the first faces of the plurality of perforated flame holders facing the inner face of the wall; anda plurality of fuel nozzles, each positioned and configured to emit a fuel stream toward the first face of a respective one of the plurality of perforated flame holders.2. The system of claim 1 , wherein each of the plurality of perforated flame holders includes a plurality of apertures extending between the first and second faces of the respective one of the plurality of perforated flame holders claim 1 , and is configured to hold a majority of a combustion reaction supported by the respective one of the plurality of fuel nozzles.3. The system of claim 1 , wherein the wall includes a plurality of nozzle apertures claim 1 , and wherein each of the plurality of fuel nozzles is positioned in a respective one of ...

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09-01-2020 дата публикации

COMBUSTION DEVICE

Номер: US20200011524A1
Принадлежит: GRAND MATE CO., LTD.

A combustion device includes a first cover, a second cover, an infrared generating mesh, and a gas burner assembly, wherein the first cover has a plurality of through holes. A first half portion of the second cover has at least one hollow portion. A second half portion of the second cover is closed. The infrared generating mesh is disposed between the first cover and the second cover. A flame outlet of the gas burner assembly is located within a projection area of the second half portion. In this way, the intensity of the infrared rays generated by the combustion device could be increased and could be uniform. 1. A combustion device , comprising:a first cover having a first outer surface and a first inner surface which face opposite directions, wherein a plurality of through holes penetrating through the first outer surface and the first inner surface are disposed on the first cover;a second cover having a second outer surface and a second inner surface which face opposite directions, wherein the second cover is disposed on the first cover; a chamber is formed between the second inner surface and the first inner surface; the second cover is divided into a first half portion and a second half portion; at least one hollow portion penetrating through the second outer surface and the second inner surface is disposed on the first half portion; the second half portion is closed;an infrared generating mesh disposed between the first cover and the second cover and located in the chamber, wherein the infrared generating mesh is heated by a flame to generate infrared rays, and the generated infrared rays emit through the through holes; anda gas burner assembly having a flame outlet for burning gas to generate the flame to act on the infrared generating mesh, wherein the flame outlet is located within a projection area of the second half portion.2. The combustion device of claim 1 , wherein the first cover has a first peripheral portion; the second cover has a second ...

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03-02-2022 дата публикации

BURNER FOR REDUCING NOX EMISSIONS AND METHOD FOR OPERATING THE BURNER

Номер: US20220034504A1
Принадлежит: Econova GmbH

A burner for heating a heating space with a reduction of NOx emissions is provided. The burner includes a mixing and combustion chamber, a mixing and igniting device disposed in the mixing and combustion chamber, and a fuel feed connected to the mixing and igniting device and configured for feeding fuel to the mixing and igniting device. Further, an air feed is provided, which is configured for feeding at least one partial air flow to the mixing and combustion chamber. A combustion chamber opening opens the mixing and combustion chamber towards a heating space to be heated. Furthermore, control means are configured for controlling a fuel flow via the fuel feed and for controlling at least one partial air flow via the air feed. 2. The burner according to claim 1 , wherein the cross-section of the combustion chamber opening relative to the burner output is in the range of between 1.5 mm/kW and 8 mm/kW claim 1 , preferably between 1.5 mm/kW and 6 mm/kW claim 1 , particularly preferably between 1.5 mm/kW and 5 mm/kW.3. The burner according to claim 1 , wherein the air feed is formed by an air feed pipe claim 1 , within which the mixing and igniting device is disposed in such a way that the mixing and combustion chamber is formed claim 1 , and that the air feed pipe forms the combustion chamber opening.4. The burner according to claim 3 , wherein the cross-section of the combustion chamber opening relative to the burner output is in the range of between 1.5 mm/kW and 5 mm/kW claim 3 , particularly preferably between 2.5 mm/kW and 3.5 mm/kW.5. The burner according to any one of the claim 1 , wherein it includes a recuperator claim 1 , which at least partially surrounds the air feed and via which a second partial air flow can be fed to the mixing and combustion chamber or the heating space outside the mixing and combustion chamber.6. The burner according to claim 5 , wherein the air feed is formed by an air feed pipe) claim 5 , within which the mixing and igniting device ...

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03-02-2022 дата публикации

Fuel nozzle and combustor and gas turbine including the same

Номер: US20220034511A1
Автор: Inchan Choi, Moonsoo Cho

A fuel nozzle includes a shroud; an injection cylinder surrounded by the shroud and configured to supply fuel to a combustion chamber; a swirler disposed between the injection cylinder and the shroud; and a porous disk disposed downstream of the swirler to surround an outer peripheral surface of the injection cylinder in order to prevent a flashback phenomenon occurring due to a reduction in pressure around the swirler. The porous disk includes a disk body to block a flame produced in the combustion chamber, and a plurality of flow holes are formed in the disk body through which the fuel flows. It is possible to prevent flashback by installing the porous disk downstream of the swirler, and to impart linearity and a swirling effect to the fuel passing through the fuel nozzle by forming variously configured flow holes in the porous disk.

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19-01-2017 дата публикации

Stove core structure of infrared gas stove

Номер: US20170016618A1
Автор: Cheng-Tung Chan
Принадлежит: Individual

A stove core structure of an infrared gas stove is provided, including a bottom cover having a receiving groove, a bottom portion of the receiving groove having a gas through hole for guiding gas into the receiving groove, a guiding plate received in the receiving groove, being elevated, the bottom portion and the guiding plate having a space therebetween, a gap which is arranged around a circumferential side of the guiding plate and for the gas to pass therethrough serves as a main gas flow line. The gas flows through the circumferential and out from the infrared ceramic piece assembled on an opening of the receiving groove so that the gas contacts the air around the infrared ceramic piece fully and is combusted completely so as to prevent monoxide poisoning and waste of gas and to elevate a thermal efficiency.

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16-01-2020 дата публикации

METHOD AND DEVICE FOR HEATING OBJECT TO BE HEATED

Номер: US20200016652A1
Принадлежит:

One object of the present invention is to provide a method and a device for heating an object to be heated which can uniformly heat the object to be heated in a shorter time than in the prior art, the amount of carbon dioxide, nitrogen oxides (NOx), and the like generated can be significantly reduced, and the object to be heated can be dried and heated efficiently and in an environmentally friendly manner, and the present invention provides a method for heating an object to be heated by a flame which is produced by supplying a fuel fluid and a combustion supporting gas to a burner as a heat source, wherein a temperature rising rate is increased by gradually increasing an oxygen concentration in the combustion supporting gas supplied to the burner and a device for heating an object to be heated including a burner for heating the object to be heated, a flow rate control unit for controlling a flow rate of a fuel fluid and a combustion supporting gas, and a calculation unit for transmitting combustion information of the burner to the flow rate control unit, and the flow rate control unit increases a temperature rising rate of the object to be heated by increasing the oxygen concentration in the combustion supporting gas supplied to the burner. 1. A method for heating an object to be heated by a flame which is produced by supplying a fuel fluid and a combustion supporting gas to a burner as a heat source ,wherein a temperature rising rate is increased by gradually increasing an oxygen concentration in the combustion supporting gas supplied to the burner.2. The method for heating an object to be heated according to claim 1 , wherein a combustion state of the burner is a periodic oscillation state by gradually increasing the oxygen concentration in the combustion supporting gas supplied to the burner with periodical changes claim 1 , periodically changing at least one of a flow rate of the fuel fluid and a flow rate of the combustion supporting gas claim 1 , periodically ...

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17-01-2019 дата публикации

VENTURI NOZZLE AND FUEL SUPPLY DEVICE COMPRISING VENTURI NOZZLE

Номер: US20190017700A1
Принадлежит: MIURA CO., LTD.

A venturi nozzle (), disposed upstream from a blower (), for mixing combustion air and fuel gas by intake pressure of the blower (), comprising: a nozzle portion () with a shape that is narrowed in diameter downstream and into which combustion air is introduced; a mixing portion (), disposed downstream from the nozzle portion (), with a shape that is enlarged in diameter downstream and into which combustion air and fuel gas are mixed; and a fuel gas inlet (), disposed between the nozzle portion () and the mixing portion (), into which fuel gas is introduced; wherein a plurality of ridges () extending in a circumferential direction and arranged at predetermined intervals in a flow direction of combustion air are formed on an inner surface of the nozzle portion ().

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16-01-2020 дата публикации

Smart Fuel Burning System and Method of Operating Same

Номер: US20200018480A1
Автор: Fu Guohong
Принадлежит:

A system configured to generate heat when supplied with a first fuel or a second fuel can include a fuel supply line operatively connected to a fuel source. A valve assembly can be operatively connected to the fuel supply line. A main burner can be operatively connected to the valve assembly. A thermoelectric generating system can be configured to transform heat to electricity. A first pilot burner can include at least one of a first thermocouple and a first Fe-ion sensor. A second pilot burner can include at least one of a second thermocouple and a second Fe-ion sensor. A printed circuit board (PCB) can be operatively connected to the valve assembly and the first and second pilot burners. The PCB can be configured to control operation of the valve assembly based on information received from at least one of the first and second pilot burners. 1. A system configured to generate heat when supplied with either a first fuel or a second fuel , the system comprising:a fuel supply line operatively connected to a fuel source, the fuel supply line being configured to convey either the first fuel or the second fuel;a valve assembly operatively connected to the fuel supply line, the valve assembly being configured to control a flow of fuel therethrough;a main burner operatively connected to the valve assembly, the main burner being configured to generate heat;a thermoelectric generating system operatively connected to the valve assembly, the thermoelectric generating system being configured to transform heat to electricity and including a first pilot burner and a second pilot burner, the first pilot burner including at least one of a first thermocouple and a first Fe-ion sensor, the second pilot burner including at least one of a second thermocouple and a second Fe-ion sensor; anda printed circuit board (PCB) operatively connected to the valve assembly and the first and second pilot burners, the PCB being configured to control operation of the valve assembly based on ...

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28-01-2016 дата публикации

Venturi Nozzle for a Gas Combustor

Номер: US20160025336A1
Принадлежит: JLCC Inc

A venturi nozzle for a gas combustor includes an orificed gas nozzle, a venturi tube and one or more support members. The orificed gas nozzle has a longitudinal axis, an inlet and an outlet. The venturi tube is aligned with the longitudinal axis and has an entrance proximate to the outlet of the orificed gas nozzle and an exit. The support member(s) are attached between the orificed gas nozzle and the venturi tube to create a gap between the venturi tube and the orificed gas nozzle. In some embodiments, two or more venturi nozzles can be combined together in various configurations into a nozzle assembly or multi-nozzle gas combustor and attached, mounted or disposed within a stack, chimney or vented enclosure. The wall(s) of the stack, chimney or vented enclosure may include one or more openings, cut outs or vents to provide primary and secondary air to the venturi nozzles.

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26-01-2017 дата публикации

Coal rope distributor with replaceable wear components

Номер: US20170023243A9
Принадлежит: Alstom Technology AG

A head assembly for a pulverized coal nozzle includes removeable wear-resistant inserts having vanes. The vanes may be flat or curved to direct a stream of air and pulverized solid fuel particles from the inlet port toward the outlet port. The curved vanes curve in two dimensions to evenly distribute the stream of air and pulverized solid fuel away from the outer surfaces reducing wear and corrosion. The pipe elbow has a removable cover that allows for easy access. The vanes are attached to a wear-resistant replaceable liner thus allowing them to be easily removed and replaced. The wear-resistant liner may be made from several parts for ease of removal and replacement.

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26-01-2017 дата публикации

DUAL RING BURNER OVNI

Номер: US20170023245A1
Принадлежит:

There is disclosed a toroidal double ring flame burner comprising a toroidal cover with a lower wall and a burner body comprising a mixing tube which receives and emits a combustible-air pre-mixture; a mixing chamber which receives said pre-mixture and homogenizes it, creating a combustible-air mixture; a distribution channel for distributing the mixture; an inner crenellated wall and an outer crenellated wall, said crenellated walls are separated by the distribution channel and with at least main combustion ports and secondary combustion ports; over the inner crenellated wall, at least one inner barrier rail with combustion ports of inner barrier rail; over the outer crenellated wall, at least one outer barrier rail with combustion ports of outer barrier rail; over the outer crenellated wall at least one outer barrier rail with outer barrier rail combustion ports. 1. A double ring toroidal flame burner comprising:a toroidal cover lid with a lower wall and a burner body comprising:a mixture tube which receives and emits a combustible-air pre-mixture;a mixture chamber which receives said pre-mixture and homogenizes it, creating a combustible-air mixture;a distribution channel for distributing the mixture;an inner crenellated wall and an outer crenellated wall, said crenellated walls separated by the distribution channel and with at least main combustion ports and secondary combustion ports; over the inner crenellated wall, at least one inner barrier rail with inner barrier rail combustion ports; over the outer crenellated wall, at least one outer barrier rail with outer barrier rail combustion ports; anda stability and flame transfer chamber with at least one wall which divides the distribution channel from the inner crenellated wall until the outer crenellated wall, the at least one wall of the transfer chamber presents a central section and lateral sections, a first lateral section being in connection with at least one peripheral crenel for inner stability and ...

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25-01-2018 дата публикации

Internal manifold with fuel inlet

Номер: US20180023477A1
Автор: Oleg Morenko
Принадлежит: Pratt and Whitney Canada Corp

A combustor assembly in a gas turbine engine includes a gas generator casing, an annular combustor supported within the casing, and a fuel injection system that includes an internal fuel manifold assembly having a fuel manifold ring with at least one fuel conveying passage in fluid flow communication with fuel injection nozzles. An inlet member is connected to the manifold ring and includes a drainage passage for collecting possible leaked fuel that is defined between the inlet member and a heat shield surrounding the inlet member. Any leaked fuel is discharged out of the inlet member at an exit of the fuel passage on an end surface of the inlet member proximate the second end thereof.

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10-02-2022 дата публикации

Improved temperature sensor for gas burner and assembly consisting of such sensor and burner

Номер: US20220042679A1
Принадлежит: Polidoro SpA

A temperature sensor ( 1 ) for gas burner ( 2 ) having a thermocouple ( 11 ) comprising electric conductors ( 15 ) and a connection element ( 12 ) to connect to the burner ( 2 ) associated with a free end ( 18 ) of such thermocouple ( 11 ), said connection element ( 12 ) being suitable for being inserted inside a seat of the sensor ( 8 ) formed inside a wall ( 4 ) of the burner ( 2 ) and having a first end ( 26 ) suitable for being placed at the outer surface ( 6 ) of the burner ( 2 ), said thermocouple ( 11 ) being inserted inside a blind hole ( 29 ) of the connection element ( 12 ) which opens at a second end ( 28 ) of said connection element ( 12 ). Said blind hole ( 29 ) ends with at least one part ( 31 ) convergent towards an end zone (K) of the hole ( 29 ), said part ( 31 ) getting in contact with the thermocouple ( 11 ) inserted inside the connection element, the connection element ( 12 ) being made from an iron-chrome-aluminum alloy. An assembly comprising such temperature sensor and a burner is also claimed.

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24-01-2019 дата публикации

BURNER SYSTEM INCLUDING A NON-PLANAR PERFORATED FLAME HOLDER

Номер: US20190024887A1
Принадлежит:

A combustion system such as a furnace or boiler includes a non-planar perforated flame holder configured to hold a combustion reaction. 1. A non-planar perforated flame holder , comprising:an input face configured to receive a fuel-air mixture;an output face configured to emit products of a combustion reaction of the fuel-air mixture; anda non-planar flame holder body having a plurality of perforations extending from the input face to the output face and collectively configured to promote the combustion reaction of the fuel-air mixture within the perforations.2. The non-planar perforated flame holder of claim 1 , wherein the non-planar flame holder body is arcuate.3. The non-planar perforated flame holder of claim 2 , wherein the non-planar flame holder body is a catenary arch.4. The non-planar perforated flame holder of claim 2 , wherein the non-planar flame holder body is parabolic.5. The non-planar perforated flame holder of claim 2 , wherein the non-planar flame holder body is rotationally symmetric.6. The non-planar perforated flame holder of claim 1 , wherein the non-planar flame holder body is a stepped arch.7. The non-planar perforated flame holder of claim 1 , wherein the input face is non-planar and is configured to equalize flow of the fuel-air mixture into the plurality of perforations.8. The non-planar perforated flame holder of claim 1 , wherein the non-planar flame holder body is arcuate and includes a departure angle that is at least 15 degrees claim 1 , wherein the departure angle defines an angular displacement of an end of the non-planar flame holder body from a center of the non-planar flame holder body claim 1 , wherein the departure angle is measured from a plane that is perpendicular to a longitudinal axis of the center of the non-planar flame holder body.9. The non-planar perforated flame holder of claim 8 , wherein the non-planar flame holder body is arcuate and includes a departure angle that is at least 30 degrees.10. The non-planar ...

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24-01-2019 дата публикации

Universal housing for a hot surface igniter

Номер: US20190024893A1
Автор: Gorst Malcolm
Принадлежит:

Herein disclosed is universal housing for a hot surface igniter that can be removed and/or easily installed by the consumer without the need for numerous tools or assistance from experienced maintenance personnel. The igniter housing is universal and is functional for use with substantially any apparatus or device which requires a hot surface igniter. The universal housing is of simple construction formed from only two components. Various embodiments are disclosed for construction of the two components and also various attachment means are described. 1. A universal housing for a hot surface igniter used for installation within an apparatus in combination comprising: an igniter element; a holder; and a base; said igniter element being fixedly mounted within said holder , said holder having standard hot surface igniter components therein , said holder having a standard insulated positive terminal extending downwardly therefrom , said base having standard components therein , said base having standard electrical leads extending downwardly therefrom for electrical connection to said apparatus and said holder being interconnected to said base.2. The universal housing of wherein said holder and said base are remove ably interconnected together by detachment means.3. The universal housing of wherein said detachment means is a bayonet fitting comprising; said holder being cylindrical having at least one outwardly projecting radial pin claim 2 , said base being cylindrical having at least one L-shaped slot for slide ably receiving and retaining said outwardly projecting radial pin therein.4. The universal housing of wherein said bayonet fitting further includes a spring claim 3 , said L-shaped slot having a short upward segment at the end of the horizontal arm forming a serif claim 3 , whereby claim 3 , when said outwardly projecting radial pin is slide ably engaged downwardly into the vertical arm of said L-shaped slot then rotated horizontally said spring urges said ...

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24-01-2019 дата публикации

SWIRLER FOR COMBUSTOR OF GAS TURBINE ENGINE

Номер: US20190024896A1
Принадлежит:

A combustor for a gas turbine engine includes an annular combustor shell, the annular combustor shell defining a combustion chamber, and a fuel injector extending at least partially into the combustion chamber, and configured to deliver a flow of fuel and a flow of combustion air into the combustion chamber for combustion. The fuel injector includes a swirler with a swirler exit having a circumferential width along a circumferential axis greater than a radial width along a radial axis. A swirler for a gas turbine engine includes a swirler entrance and a swirler exit. The swirler exit has a circumferential width along a curvilinear circumferential axis greater than a radial width along a radial axis. 1. A combustor for a gas turbine engine , comprising:an annular combustor shell, the annular combustor shell defining a combustion chamber; anda fuel injector extending at least partially into the combustion chamber, and configured to deliver a flow of fuel and a flow of combustion air into the combustion chamber for combustion, the fuel injector including a swirler with a swirler exit having a circumferential width along a circumferential axis greater than a radial width along a radial axis.2. The combustor of claim 1 , wherein the circumferential axis is coaxial with the annular combustor shell.3. The combustor of claim 1 , wherein the circumferential width is between 1.5 times the radial width and 3 times the radial width.4. The combustor of claim 1 , wherein the swirler exit includes:an inboard exit portion formed with an inboard radius; andan outboard exit portion formed with an outboard radius;wherein one or more of the inboard radius and the outboard radius are coaxial with the annular combustor shell.5. The combustor of claim 1 , wherein the annular combustor shell includes:an outer shell;an inner shell located radially inboard of the outer shell; anda combustor bulkhead extending between the inner shell and the outer shell;wherein the fuel injector extends at ...

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23-01-2020 дата публикации

GAS BURNER

Номер: US20200025371A1
Принадлежит: GRAND MATE CO., LTD.

A gas burner includes a first tube and a second tube, wherein the first tube includes a first section and a second section which are connected to each other; the second section includes a chamber and an air outlet disposed at one side of the chamber; a cross-sectional area of the chamber of the second section is larger than a cross-sectional area of one end of the first section communicating with the second section. The second tube includes an air inlet section, a venturi section, and an extending section, wherein one end of the air inlet section includes an air inlet; the air inlet is adapted to supply gas; the venturi section is between the air inlet section and the extending section; the extending section extends into the chamber of the second section of the first tube and has a cross-sectional area small than the cross-sectional area of the chamber. 1. A gas burner , comprising:a first tube, including a chamber and an air outlet disposed at one side of the chamber; anda second tube, being connected to the first tube, and including an air inlet section, a venturi section, and an extending section, wherein one end of the air inlet section includes an air inlet; the air inlet is adapted to supply gas to the second tube; the venturi section is between the air inlet section and the extending section, and includes a passage with a throat portion; the extending section extends into the chamber of the first tube, and a cross-sectional area of the extending section is small than a cross-sectional area of the chamber.2. The gas burner of claim 1 , wherein the first tube further includes a first section and a second section claim 1 , wherein one end of the first section has an open end claim 1 , and another end of the first section communicates with the second section; the second section includes the chamber and the air outlet.3. The gas burner of claim 2 , wherein the second tube is detachably disposed within the first tube.4. The gas burner of claim 3 , wherein the ...

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28-01-2021 дата публикации

SMART CANDLE PLATFORM AND SYSTEM

Номер: US20210025586A1
Принадлежит:

An example Smart Candle Platform is configured to includes a candle fixture that comprises an outer shell having an opening, a mid-frame, and a base, and a fuel bottle configured to hold a fuel material and is removably coupled to the candle fixture. The fuel bottle is positioned at least partially within a hollow interior of the mid-frame of the candle fixture and accommodated by the base. The fuel bottle further comprises a wick that extends through an opening of the outer shell, and the candle fixture includes an ignitor configured to ignite the fuel material via the wick to produce a living flame, a proximity sensor to sense a distance between an object and the living flame, a self-extinguisher, and a control system configured to, upon determining the distance between the object and the living flame is unsafe, control the self-extinguisher to extinguish the living flame. 1. A living flame candle platform , comprising:an outer shell having a top surface that provides a first opening;a top cover coupled to an interior of the top surface of the outer shell, the top cover comprising a second opening that is smaller than the first opening;one or more ignitors;an inner cover positioned below the top cover and configured to support the one or more ignitors;a mid-frame having a hollow interior, wherein an upper end of the mid-frame is coupled to the inner cover;a refillable fuel bottle configured to hold a fuel material, wherein the refillable fuel bottle is positioned at least partially within the hollow interior of the mid-frame, wherein the refillable fuel bottle comprises a wick that extends through the first opening and the second opening to be in proximity to the one or more ignitors, and wherein the one or more ignitors are configured to ignite the fuel material on the wick to produce a living flame when the candle platform is in operation;a proximity sensor positioned close to the wick, wherein the proximity sensor is configured to sense an object in the ...

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17-02-2022 дата публикации

Furnace control method

Номер: US20220048767A1
Принадлежит: JOHNSON MATTHEY PLC

A method is described for controlling a furnace containing a plurality of catalyst-containing tubes heated by a combustion gas generated by a plurality of burners, said method comprising the steps of: (i) measuring path-averaged combustion gas temperatures on multiple paths through the furnace using tunable diode laser absorption spectroscopy, (ii) periodically measuring temperatures of surfaces within the furnace to obtain periodic surface temperature information, (iii) entering the path-averaged combustion gas temperatures and periodic surface temperature information into a computer model of the furnace, said model comprising parameters for controlling the furnace; and (iv) using the computer model and the temperature information to obtain optimised parameters for controlling the furnace. A system for performing the method is also described.

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01-02-2018 дата публикации

Perforated flame holder and system including protection from abrasive or corrosive fuel

Номер: US20180031229A1
Принадлежит: Clearsign Combustion Corp

A burner system that employs a perforated flame holder and is configured to combust a powdered solid fuel includes a structure configured to protect the perforated flame holder from erosion caused by particles of the solid fuel.

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01-02-2018 дата публикации

BURNER FOR THE PRODUCTION OF SYNTHESIS GAS AND RELATED COOLING CIRCUIT

Номер: US20180031231A1
Принадлежит: Casale SA

A burner system () for the combustion of a hydrocarbon feedstock with an oxidant, comprising at least one burner () and a cooling circuit (), where in: the burner system() comprises a fuel side () and an oxidant side (); the burner () comprises a cooling chamber () connected to said cooling circuit(); said cooling circuit () comprises a reservoir tank() for said cooling fluid and a circulation pump(); said system () comprises pressure equalizing line () arranged to establish a fluid communication between the inside of said reservoir tank () and at least one of said fuel side and oxidant side. 1. A burner system for the combustion of a hydrocarbon feedstock with an oxidant , comprising at least one burner body and a cooling circuit , wherein:the burner system comprises a fuel side and an oxidant side;the burner body comprises a cooling chamber connected to said cooling circuit for the passage of a cooling fluid;wherein:said cooling circuit comprises a reservoir tank for said cooling fluid and a circulation pump;said system comprises pressure equalizing means adapted to equalize the pressure inside said cooling circuit to the pressure of at least one of said fuel side and oxidant side, said means including at least one pressure equalizing line arranged to establish a fluid communication between the inside of said reservoir tank and at least one of said fuel side and oxidant side.2. The burner system according to claim 1 , wherein said pressure equalizing line is arranged to provide a fluid communication of said fuel side and/or said oxidant side with a region of the reservoir tank which is above a liquid level of the cooling medium claim 1 , so that the pressure of said line is transferred to a free surface of the cooling medium contained in the reservoir tank.3. The burner system according to claim 2 , wherein the cooling medium contained in the reservoir tank acts as a seal against a mass transfer from the pressure equalizing line into any part of the cooling ...

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01-02-2018 дата публикации

COMBUSTION BURNER AND BOILER

Номер: US20180031232A1
Принадлежит: Mitsubishi Hitachi Power Systems, Ltd.

In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilizing performance is improved by providing: a fuel nozzle which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle which ejects a fuel gas combustion air from outside of the fuel nozzle; a secondary air nozzle which ejects secondary air from the outside of the combustion air nozzle; and a flame stabilizer which comprises a first flame stabilizer main body which is arranged at the leading end of the fuel nozzle and separated by a prescribed space from the inner wall surface of the fuel nozzle and which forms a ring shape having as the center an axial line along the ejection direction of the fuel gas. 112-. (canceled)13. A combustion burner comprising:a fuel nozzle configured to eject fuel gas obtained by mixing fuel and air;a secondary air nozzle configured to eject air from outside the fuel nozzle;a flame stabilizer including a plurality of flame stabilizer main bodies disposed on a leading end of the fuel nozzle, the plurality of flame stabilizer main bodies being separated from each other by a predetermined space, and separated from an inner wall surface of the fuel nozzle by a predetermined space; anda plurality of support members supporting the plurality of flame stabilizer main bodies on the inner wall surface of the fuel nozzle.14. The combustion burner according to claim 13 , wherein:the plurality of flame stabilizer main bodies are disposed in a lattice form or a staggered form on a surface that is orthogonal to a flow direction of the fuel gas.15. The combustion burner according to claim 13 , wherein:portions of the plurality of flame stabilizer main bodies that face each other are provided with a flat surface portion.16. The combustion burner according to claim 13 , wherein:the flame stabilizer main body forms a triangular cross-sectional shape that widens facing downstream in an ejection direction of the ...

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31-01-2019 дата публикации

Low emissions combustor assembly for gas turbine engine

Номер: US20190032559A1
Принадлежит: United Technologies Corp

A combustor assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a combustion chamber, and a fuel injector assembly in communication with the combustion chamber that has a swirler body situated about a nozzle to define an injector passage that converges to a throat. The throat is defined at a distance from the combustion chamber. The nozzle includes a primary fuel injector along a first fuel injector axis and at least one secondary plain jet fuel injector axially forward of the primary fuel injector.

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31-01-2019 дата публикации

Burner

Номер: US20190032916A1
Принадлежит: Rinnai Corp

A burner has: a combustion plate part for ejecting air-fuel mixture; and a flame rod which lies opposite to a portion of the combustion plate part which has a picture-frame-like burner frame; a metal-fiber knit which covers an opening enclosed by the burner frame; and a distribution plate which has formed therein distribution holes and which sandwiches the metal-fiber knit between the burner frame and the distribution plate through the distribution holes and the metal-fiber knit. The flame rod has: a rod base part which lies opposite to a portion of opening peripheral part of the burner frame which is positioned on the same surface level as the opening; and a rod main body part which lies opposite to a portion of the metal-fiber knit. The distance between the rod base part and the opening peripheral part is made smaller than the distance between the rod main body part and the metal-fiber knit.

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30-01-2020 дата публикации

COMBUSTION APPARATUS AND HOT WATER APPARATUS

Номер: US20200033002A1
Автор: KARAKI Tatsuya
Принадлежит: NORITZ CORPORATION

A combustion apparatus includes a burner, a chamber, and a flame rod. The burner includes a burner port surface in which a plurality of burner ports are open. The chamber includes an attachment surface to which the burner is attached and supplies mixed gas to the plurality of burner ports. The flame rod is attached to a flange portion of a chamber located on an outer circumference side of the burner in plan view. The flame rod includes a core. The core extends diagonally to the attachment surface to pass through the chamber, and is bent toward the burner port surface. 1. A combustion apparatus comprising:a burner including a burner port surface in which a plurality of burner ports are open;a chamber including an attachment surface to which the burner is attached, the chamber supplying mixed gas to the plurality of burner ports; anda flame rod attached to an outer circumferential portion of the chamber which is located on an outer circumference side of the burner in plan view, the flame rod including a core,wherein the core extends diagonally to the attachment surface to pass through the chamber, and is bent toward the burner port surface.2. The combustion apparatus according to claim 1 , whereinthe core includes a first portion having a tip end and disposed to extend along the burner port surface, andthe tip end is disposed opposite to the chamber with respect to the burner port surface and is disposed to overlap the burner in plan view.3. The combustion apparatus according to claim 2 , wherein the core includesa second portion inserted into the chamber,a third portion disposed between the first portion and the second portion,a first bent portion connecting the first portion and the third portion to each other, anda second bent portion connecting the second portion and the third portion to each other.4. The combustion apparatus according to claim 1 , further comprising a burner flange disposed between the burner and the core such that at least part of the burner ...

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11-02-2016 дата публикации

Electrically stabilized swirl-stabilized burner

Номер: US20160040872A1
Принадлежит: Clearsign Combustion Corp

A swirl-stabilized burner includes a charge source configured to apply a majority charge to a combustion reaction and at least one stabilization electrode configured to apply electrical attraction or repulsion to the majority charge to control position or stability of the swirl-stabilized combustion reaction.

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09-02-2017 дата публикации

BURNER SYSTEM INCLUDING A NON-PLANAR PERFORATED FLAME HOLDER

Номер: US20170038063A1
Принадлежит:

A combustion system such as a furnace or boiler includes a non-planar perforated flame holder configured to hold a combustion reaction. 1. A non-planar perforated flame holder , comprising:an input face configured to receive a fuel-air mixture;an output face configured to emit products of a combustion reaction of the fuel-air mixture; anda non-planar flame holder body having a plurality of perforations extending from the input face to the output face and collectively configured to promote the combustion reaction of the fuel-air mixture within the perforations.2. The non-planar perforated flame holder of claim 1 , wherein the non-planar flame holder body is arcuate.3. The non-planar perforated flame holder of claim 2 , wherein the non-planar flame holder body is a catenary arch.4. The non-planar perforated flame holder of claim 2 , wherein the non-planar flame holder body is parabolic.5. The non-planar perforated flame holder of claim 2 , wherein the non-planar flame holder body is rotationally symmetric.6. The non-planar perforated flame holder of claim 1 , wherein the non-planar flame holder body is a stepped arch.7. The non-planar perforated flame holder of claim 1 , wherein the input face is non-planar and is configured to equalize flow of the fuel-air mixture into the plurality of perforations.8. The non-planar perforated flame holder of claim 1 , wherein the non-planar flame holder body is arcuate and includes a departure angle that is at least 15 degrees claim 1 , wherein the departure angle defines an angular displacement of an end of the non-planar flame holder body from a center of the non-planar flame holder body claim 1 , wherein the departure angle is measured from a plane that is perpendicular to a longitudinal axis of the center of the non-planar flame holder body.9. The non-planar perforated flame holder of claim 8 , wherein the non-planar flame holder body is arcuate and includes a departure angle that is at least 30 degrees.10. The non-planar ...

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09-02-2017 дата публикации

GAS BURNER, IN PARTICULAR FOR A COOKING TOP FOR HOUSEHOLD USE

Номер: US20170038076A1
Принадлежит:

A gas burner is provided herein. The gas burner includes a base having a Venturi element adapted to receive a gas from an injector and a duct configured to supply an air-gas mixture to said burner. A burner body is associated with the base and has a hole for passage of the air-gas mixture from the duct. A flame divider is associated with the burner body and includes a plurality of apertures to allow the air-gas mixture to exit. The base is made from a sheet that is shaped by deep drawing. 1. A gas burner for a cooking top comprising:a base having a Venturi element adapted to receive a gas from an injector and a duct configured to supply an air-gas mixture to said burner;a burner body associated with the base having a hole for passage of the air-gas mixture from the duct; anda flame divider associated with the burner body and including a plurality of apertures to allow the air-gas mixture to exit, wherein the base is made from a sheet that is shaped by deep drawing.2. The burner according to claim 1 , wherein the base is made from aluminized sheet metal.3. The burner according to claim 2 , wherein the base comprises a first half shell and a second half shell made from a sheet metal and joined together.4. The burner according to claim 1 , wherein the sheet includes a metallic material and is suitably shaped by deep drawing.5. The burner according to claim 1 , wherein the flame divider is made from a sheet.6. The burner according to claim 1 , wherein the flame divider includes a side wall that retains the apertures in a raised position relative to the cooking top.7. The burner according to claim 6 , wherein a side wall height is between 10 mm and 20 mm.8. The burner according to claim 7 , wherein the burner body comprises a flank having a height which is essentially close to the side wall height so that the coupling between the burner body and the flame divider will ensure proper sealing and will prevent the air-gas mixture from escaping sideways claim 7 , wherein the ...

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09-02-2017 дата публикации

SYSTEM OF GAS BURNERS, IN PARTICULAR FOR A COOKING TOP FOR HOUSEHOLD USE

Номер: US20170038077A1
Принадлежит:

A system of gas burners for a cooktop includes a pair of concentric burners made up of an outer burner having a first cup and a first flame divider and an inner burner having a second cup and a second flame divider. The first and second flame dividers having respective first and second apertures to allow an air-gas mixture to escape and positioned to extend parallel to a vertical axis of the burners. The first cup includes a first Venturi element for supplying an air-gas mixture to a first chamber of the first cup. The second cup includes a second Venturi element for supplying an air-gas mixture to a second chamber of the second cup. The first and second Venturi elements are positioned horizontally along respective first and second axes, the first axis being located on an outside of an inner wall of the first cup. 1. A system of gas burners for a cooking top having a pair of substantially concentric burners , the pair of burners comprising:an outer burner equipped with a first cup and a first flame divider;an inner burner equipped with a second cup and a second flame divider, wherein the first flame divider and the second flame divider include, respectively, a plurality of first apertures and a plurality of second apertures to allow an air-gas mixture to exit, said first apertures and second apertures being oriented to extend substantially parallel to a vertical axis of symmetry of the inner and outer burners;a first Venturi element of the first cup of the outer burner for supplying an air-gas mixture to a first chamber of the first cup; anda second Venturi element of the second cup of the inner burner for supplying an air-gas mixture to a second chamber of said second cup, wherein the first Venturi element and the second Venturi element include a first longitudinal axis of symmetry and a second longitudinal axis of symmetry, respectively, that are arranged substantially horizontally, and wherein the first Venturi element is disposed relative to the first cup such ...

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09-02-2017 дата публикации

SYSTEM OF GAS BURNERS, IN PARTICULAR FOR A COOKING TOP FOR HOUSEHOLD USE

Номер: US20170038078A1
Принадлежит:

The present device relates to a system of gas burners, in particular for a cooking top for household use and including a pair of substantially concentric burners. The pair of burners including an outer burner equipped with a first base, a first burner body and a first flame divider, and an inner burner equipped with a second base, a second burner body and a second flame divider. The present device is characterized in that the first base of the outer burner and the second base of the inner burner are made from a metallic sheet that is shaped by deep drawing. 1. System of gas burners for a cooking top comprising: an outer burner equipped with a first base, a first burner body and a first flame divider; and', 'an inner burner equipped with a second base, a second burner body and a second flame divider, wherein the first base of the outer burner and the second base of the inner burner are each made from a metallic sheet that is shaped by deep drawing., 'a pair of substantially concentric burners, the pair of burners including2. The system of gas burners according to claim 1 , wherein the first flame divider and said second flame divider include claim 1 , respectively claim 1 , a plurality of first apertures and second apertures to allow an air-gas mixture to escape claim 1 , the first apertures and second apertures being positioned to extend substantially parallel to an axis of the system of burners.3. The system of gas burners according to claim 1 , wherein the first base of the outer burner includes a first Venturi element adapted to receive gas coming from a first injector claim 1 , and a first duct for supplying an air-gas mixture to the first base and to the outer burner claim 1 , and wherein the second base of the inner burner includes a second Venturi element adapted to receive gas coming from a second injector claim 1 , and a second duct for supplying the air-gas mixture to said second base and to the inner burner.4. The system of gas burners according to claim ...

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09-02-2017 дата публикации

AIR INLET DAMPER

Номер: US20170038094A1
Принадлежит:

A fuel fired, atmospheric water heater has a burner positioned inside a combustion chamber. All combustion air entering the combustion chamber must pass through a damper. The damper is operable to adjust the flow resistance to combustion air entering the combustion chamber. The damper is biased to a closed position such that during non-firing periods of the water heater, the damper significantly reduces the flow rate of combustion air being provided to the combustion chamber reducing standby heat loss. An actuator is in fluid communication with a fuel supply line such that when pressurized fuel is provided to the burner, the pressurized fuel causes the actuator to move the damper to an open position to permit operative combustion air delivery to the combustion chamber during firing periods of the water heater. 1. A water heater comprising:a combustion chamber;a burner disposed in the combustion chamber;a fuel valve operable to adjust a flow rate of fuel between a first flow rate and a second flow rate greater than the first flow rate;a fuel supply line communicating between the burner and the fuel valve for supply of pressurized fuel from the fuel valve to the burner; a damper movable between a first position corresponding to a first resistance to air entering the combustion chamber and a second position corresponding to a second resistance to air entering the combustion chamber, wherein the first resistance is greater than the second resistance;', 'an actuator operable to move the damper between the first position and the second position;', 'a conduit communicating between the actuator and the fuel valve such that the actuator moves the damper to the first position in response to the first flow rate and the actuator moves the damper to the second position in response to the second flow rate., 'an air inlet assembly mounted to the combustion chamber and operable to permit combustion air to enter the combustion chamber, the air inlet assembly including2. The water ...

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24-02-2022 дата публикации

BURNER SYSTEM AND METHOD FOR PROVIDING THERMAL ENERGY

Номер: US20220057083A1
Принадлежит:

The present invention relates to a burner system for providing thermal energy comprising an evaporator device for evaporating a liquid alcohol fuel, a burner air supply means, a burner device for burning a fuel mixture comprising vaporized fuel and burner air to provide an exhaust gas stream, a functions device for controlling the thermal energy of the exhaust gas flow, wherein the burner device provides the thermal energy for evaporation in the evaporator device during operation. 1. A burner system for providing thermal energy , the burner system comprising:an evaporator device for vaporizing a liquid fuel and providing vaporized fuel,a burner air supply device for providing burner air,a surface burner for burning a fuel mixture comprising the vaporized fuel and burner air to provide an exhaust gas stream,a shielding plate with openings for passing and controlling the thermal energy of the exhaust gas flow of the surface burner, whereinthe surface burner is coupled to the evaporator device via the shielding plate in such a way that, in operation, the exhaust gas flow of the surface burner provides the thermal energy and the evaporation temperature required for complete evaporation of the fuel in the evaporator device, anda tertiary air supply means for supplying tertiary air to the exhaust gas stream to adjust a temperature of the exhaust gas stream by mixing with the tertiary air to form a hot gas stream.2. The burner system according to claim 1 ,whereinthe thermal energy of the exhaust gas flow can be provided in the form of diluted exhaust gas, and this thermal energy is delivered in the form of tempered air directly or via a separately designed heat exchanger device to a device coupled to the burner system, this device being an internal combustion engine or a fuel cell stack or a battery.3. The burner system according to claim 1 ,whereinthe surface burner comprises a burner screen and a metal or ceramic fiber mesh connected together, a diffuser, an ignition ...

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18-02-2021 дата публикации

FUEL-BURNING DEVICE

Номер: US20210048190A1
Автор: Wu Wei Cheng
Принадлежит:

A fuel-burning device includes a container defining a receptacle and having an opening which is at an end of the receptacle. The opening has a first width. The fuel-burning device also includes a fixing mechanism mounted in the container through a fixing member. The fixing member has an end resiliently fixed on a periphery of the receptacle. The fixing member is radially compressible. When the fixing member is not compressed, the end thereof has a second width which is greater than the first width. The end of the fixing member is compressible to a third width which is smaller than the first width.

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18-02-2021 дата публикации

Burner Unit

Номер: US20210048191A1
Принадлежит: Polidoro S.p.A.

A new and improved gas fired burner unit that can be utilized in applications where low emissions and high efficiency are desired including a burner body having a lower housing unit with a bottom portion, a distribution element located above the bottom portion, a burner deck located above the distribution element, and a metal fiber mesh element located above the burner deck. The burner deck supports the metal fiber mesh and spaces the metal fiber mesh from the internal distribution element to define a burner head. At least one inlet conduit communicates with the burner body and extends into the burner body to deliver a gas/air mixture to the burner body in a region located below the distribution element and above the bottom portion of the lower housing unit. The burner head has a permeability greater than 700 liters per hour, and the bottom portion of the lower housing unit includes a plurality of ribs providing added rigidity to the burner body and eliminating combustion noise.

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18-02-2021 дата публикации

APPARATUS AND METHOD FOR PASSIVE TORCH TEMPERATURE MODIFICATION

Номер: US20210048192A1
Принадлежит:

An apparatus and method for using the Venturi effect to introduce a controllable amount of ambient air into the combustion cycle for a flameworking torch, thereby raising or lowering the flame temperature at the torch head, is disclosed. The apparatus includes a control valve to adjust the flow of the ambient air so as to offer control over the actual temperature of the flame during the flameworking and fabrication cycle in multiple application environments, including glassworking. 1. An apparatus comprising:a source of compressed gas;a first control valve communicatively coupled to the source of compressed gas, the first control valve controlling a flow rate for a quantity of compressed gas;a second control valve, the second control valve being communicatively coupled to the injector, the second control valve controlling a flow rate for a quantity of ambient air delivered to the injector; receive the quantity of compressed gas;', 'receive the quantity of ambient air; and', 'alter a pressure associated with the quantity of compressed gas via the Venturi effect; and, 'an injector, the injector being communicatively coupled to the first control valve and the second control valve, the injector being configured toa gaseous mixture produced by the injector comprising the quantity of compressed gas and the quantity of ambient air, the gaseous mixture being delivered to a torch head to create a flame and wherein the second control valve is configured to control a temperature associated with the flame by adjusting the flow rate for the quantity of ambient air delivered to the injector.2. The apparatus of further comprising an air filter claim 1 , the air filter being positioned to filter the quantity of ambient air delivered to the injector.3. The apparatus of further comprising a check valve claim 1 , the check valve being positioned to between the air filter and the second control valve.4. The apparatus of further comprising:an air filter, the air filter being positioned ...

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18-02-2016 дата публикации

Burner Assembly and Method of Combustion

Номер: US20160047546A1
Принадлежит:

Variable momentum burner assembly for separately injecting fuel gas and oxidant in a combustion zone, comprising at least two fuel gas canals, at least one oxidant canal and a fuel gas distributor, whereby the at least two fuel gas canals comprise an inner fuel-conducting passage forming an inner fuel gas outlet and an outer fuel-conducting passage forming an outer fuel gas outlet, said inner and said outer fuel-conducting passages being coaxially arranged; and whereby said fuel gas distributor comprises a first fuel gas chamber in fluid connexion with the inner fuel-conducting passage of the at least two fuel gas canals and a second fuel gas chamber in fluid connexion with the outer fuel-conducting passage of the at least two fuel gas canals. 113-. (canceled)14. A burner assembly comprising:at least two fuel gas canals comprising an inner fuel-conducting passage forming an inner fuel gas outlet and an outer fuel-conducting passage forming an outer fuel gas outlet, said inner and said outer fuel-conducting passages being coaxially arranged;at least one oxidant canal; andat least one exit face at which terminate the at least two fuel gas canals or at least one of the at least one oxidant canal, wherein the at least two fuel gas canals and the at least one oxidant can being configured such that a direction of injection of oxidant from the at least one oxidant canal substantially converges and intersects at a combustion zone downstream of the burner assembly with a direction of injection of fuel gas from the at least two fuel gas canals,an oxidant supply line;an oxidant injection device adapted to inject said oxidant stream in said at least one oxidant fluid canal to create at least one injected oxidant stream;a fuel gas supply device adapted to supply a fuel gas stream; a first fuel gas chamber in fluid connection with the inner fuel-conducting passage, said first fuel gas chamber having a first inlet;', one of the first and second inlets receives a portion of the ...

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18-02-2016 дата публикации

FUEL-FIRED HEATING APPLIANCE HAVING FLAME INDICATOR ASSEMBLY

Номер: US20160047548A1
Принадлежит:

A flame indicator assembly for a fuel-fired heating appliance, the fuel-fired heating appliance including a burner assembly and control electronics. The flame indicator assembly comprises a flame sensor configured to allow the flow of electric current in response to exposure to a flame. The flame sensor is configured for electrical communication with the control electronics of the fuel-fired heating appliance. The flame indicator assembly also comprises a visual indicator module attached to the flame sensor. The visual indicator module comprises at least one light source. The visual indicator module is in operative communication with the flame sensor such that the at least one light source is actuated in response to the flow of electric current. A fuel-fired heating appliance comprising a flame indicator assembly is also disclosed. 1. A flame indicator assembly for a fuel-fired heating appliance , the fuel-fired heating appliance comprising a burner assembly and control electronics , the flame indicator assembly comprising:a flame sensor configured to allow the flow of electric current in response to exposure to a flame, the flame sensor configured for electrical communication with the control electronics of the fuel-fired heating appliance; anda visual indicator module attached to the flame sensor, the visual indicator module comprising at least one light source;wherein the visual indicator module is in operative communication with the flame sensor such that the at least one light source is actuated in response to the flow of electric current.2. The flame indicator assembly of claim 1 , wherein the flame sensor is a rectification flame sensor.3. The flame indicator assembly of claim 2 , the flame sensor further comprising a flame rod.4. The flame indicator assembly of claim 3 , whereinthe flame rod has a first end and a second end, andthe flame sensor assembly further comprises a mounting bracket to which the flame sensor and the visual indicator module are ...

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16-02-2017 дата публикации

SYSTEM AND METHOD FOR PROVIDING COMBUSTION IN A BOILER

Номер: US20170045218A1
Принадлежит:

A combustion system with a combustion area in a boiler including a fuel pipe for delivering fuel is disclosed. A duct having a bend extended there through is in fluid communication with the fuel pipe and the combustion area of the boiler. The duct has an outer perimeter and an inner perimeter. The duct includes a first partition plate to form a first parallel flow of the fuel between the outer perimeter and the first partition plate, upstream of the bend. 1. A system for providing combustion in a boiler having a combustion area comprising:a fuel pipe operable to deliver fuel;a duct with an outer perimeter having a bend extended there through, the duct being in fluid communication with the fuel pipe and the combustion area of the boiler; a first partition plate disposed in the duct to form a first parallel flow of the fuel between the outer perimeter and the first partition plate, upstream of the bend, and', 'a first concentric conduit, positioned in the duct downstream of the bend, to deliver a first concentric flow of the fuel for combustion, wherein the bend between the first partition plate and the first concentric conduit is configured to transition the first parallel flow of the fuel into the first concentric flow of the fuel., 'wherein the duct comprises2. The system according to claim 1 , wherein the duct further comprises:a second partition plate, disposed in the duct, to form a second parallel flow of the fuel between the first partition plate and the second partition plate upstream of the bend, anda second concentric conduit, positioned in the duct downstream of the bend, to deliver a second concentric flow of the fuel for combustion, wherein the bend between the second partition plate and the second concentric conduit is configured to transition the second parallel flow of the fuel into the second concentric flow of the fuel.3. The system according to claim 2 , whereinthe second partition plate forms a third parallel flow of the fuel between the outer ...

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16-02-2017 дата публикации

COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BURNER, SOLID-FUEL-COMBUSTION BOILER, BOILER, AND METHOD FOR OPERATING BOILER

Номер: US20170045221A1
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

Provided is a combustion burner including: a fuel nozzle () that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle () that is able to blow secondary air from the outside of the fuel nozzle (); a flame stabilizer () that is provided at a front end portion of the fuel nozzle () so as to be near the axis center; and a rectification member () that is provided between the inner wall surface of the fuel nozzle () and the flame stabilizer (), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized. 1. A solid-fuel-combustion burner that is used in a burner portion of a solid-fuel-combustion boiler for inputting pulverized solid fuel and air into a furnace , the solid-fuel-combustion burner comprising:a fuel burner arranged to input pulverized fuel and primary air into the furnace; anda secondary air port arranged to input secondary air from the outer periphery of the fuel burner,wherein a cross type split member obtained by intersecting a plurality of inner flame stabilization members in a plurality of directions is disposed at a front side of a passage of the fuel burner, and the width of the split member is different for each direction.2. The solid-fuel-combustion burner according to claim 1 ,wherein three or more cross type split members are disposed in at least one of a first direction and a second direction, and the center portions thereof in at least one of the first direction and the second direction are wide.3. The solid-fuel-combustion burner according to claim 2 ,wherein the cross type split members are wider in the first direction than in the second direction.4. The solid-fuel-combustion burner according to claim 2 ,wherein the cross type split members are wider in the second direction than in the first direction.5. A solid-fuel-combustion burner according to claim 1 , the secondary air input port that ejects secondary air from the outer periphery of the fuel burner ...

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15-02-2018 дата публикации

COMBUSTION BURNER AND BOILER PROVIDED WITH SAME

Номер: US20180045403A1
Принадлежит: Mitsubishi Hitachi Power Systems, Ltd.

To provide: a fuel nozzle () that can inject fuel gas in which fuel and air are mixed; a flame stabilizer () provided on an axial center side near a tip end of the fuel nozzle (); and a casing member () that partitions an inner flow channel in which the flame stabilizer () is provided and an outer flow channel on an outer side of the inner flow channel, inside the fuel nozzle (), where the flow channel cross-sectional area of the inner flow channel partitioned by the casing member () expands in the flow direction of the fuel gas. 1. A combustion burner , comprising:a fuel nozzle that can inject fuel gas in which fuel and air are mixed;at least one flame stabilizer provided on an axial center side near a tip end of the fuel nozzle; anda partitioning member that partitions an inner flow channel in which the flame stabilizer is provided and an outer flow channel on an outer side of the inner flow channel, inside the fuel nozzle; whereinthe flow channel cross-sectional area of the inner flow channel partitioned by the partitioning member expands in a flow direction of the fuel gas.2. The combustion burner according to claim 1 , wherein the partitioning member is a casing member.3. The combustion burner according to claim 1 , wherein the partitioning member has two plate-shaped bodies that extend mutually providing an interval with the flame stabilizer interposed therebetween claim 1 , and the plate-shaped bodies are connected to a wall surface demarcating an outer circumference of the fuel nozzle.4. The combustion burner according to claim 1 , comprising: a combustion burner air nozzle supplying air from the outside of the fuel nozzle claim 1 , wherein the flow channel cross-sectional area of the outer flow channel partitioned by the partitioning member decreases in the flow direction of the fuel gas.5. The combustion burner according to claim 1 , wherein the partitioning member has an inclination angle claim 1 , which is an angle to a direction parallel to a flow ...

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15-02-2018 дата публикации

COMBUSTION BURNER AND BOILER

Номер: US20180045404A1
Принадлежит: Mitsubishi Hitachi Power Systems, Ltd.

Provided is a combustion burner including: a fuel nozzle () which ejects a fuel gas that is a mixture of fuel and air; a combustion air nozzle () which ejects air from an outer side of the fuel nozzle (); first members () which are arranged inside the fuel nozzle () and which each comprise a first inclined surface () inclined with respect to the flow of the fuel gas, and a first inclination end edge where the inclination of the first inclined surface () ends; and second members () which are arranged downstream of the first inclination end edges in the direction of fuel gas flow, and which each comprise a second inclined surface () inclined towards the first members () with respect to the fuel gas flow and a second inclination end edge where the inclination of the second inclined surface () ends. 115-. (canceled)16. A combustion burner comprising:a fuel nozzle ejecting a fuel gas being a mixture of fuel and air;a combustion air nozzle ejecting air from an outer side of the fuel nozzle;a first member arranged inside the fuel nozzle and comprising a first inclined surface inclined with respect to a flow of the fuel gas and a first inclination end edge, the first inclined surface ending inclination at the first inclination end edge; andsecond members arranged downstream of the first inclination end edge in a direction of the fuel gas flow and each comprising a second inclined surface inclined toward the first member with respect to the fuel gas flow and a second inclination end edge, the second inclined surface ending inclination at the second inclination end edge;the second members being disposed on both sides of the first member.17. The combustion burner according to claim 16 , wherein the second members are disposed in a vicinity of an opening of the fuel nozzle at predetermined intervals from inner wall surfaces of the fuel nozzle.18. The combustion burner according to claim 16 , wherein:the first member comprises a plurality of the first inclined surfaces spreading ...

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15-02-2018 дата публикации

BURNER

Номер: US20180045406A1
Принадлежит:

A burner comprising a base cup, an annular flame splitter, and a flame cover. The base cup comprises an air inlet channel) and two nozzles in communication with the air inlet channel and arranged upwards. The annular flame splitter arranged on the base cup comprises two Venturi tubes respectively arranged opposite the two nozzles. The annular flame splitter is separated from the base cup to form a gap, thus allowing primary air to enter the two Venturi tubes from the gap to be mixed with a fuel gas sprayed into the two Venturi tubes by the two nozzles to form a gaseous mixture. Groove openings are formed on the top of the annular flame splitter in communication with the mixing cavity. The flame cover covers the mixing cavity and limits the groove openings to define the outlet for the gaseous mixture, thus forming a flame ring. 1. A burner , comprising:a bottom cup having a gas input passage and two nozzles communicated with the gas input passage and arranged upwards;a ring-shaped flame distributor disposed to the bottom cup and comprising two venturi tubes respectively opposite to the two nozzles, the flame distributor being spaced apart from the bottom cup to define a gap therebetween, such that a primary air is allowed to enter the two venturi tubes through the gap to mix with a fuel gas sprayed into the two venturi tubes from the two nozzles so as to form a mixed gas, the flame distributor being provided with a ring-shaped mixing chamber communicated with the venturi tubes, and having a notch formed at a top portion of the flame distributor and communicated with the mixing chamber; anda burner cover disposed to the flame distributor, the burner cover being configured to cover the mixing chamber and limit the notch to define an outlet of the mixed gas, thereby forming a flame ring.2. The burner according to claim 1 , wherein the gas input passage is configured to have a straight line shape claim 1 , and the flame distributor presents a circular-ring shape claim 1 ...

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19-02-2015 дата публикации

LOW NOx BURNER

Номер: US20150050605A1
Принадлежит: Haul All Equipment Ltd

A low NOx burner has a housing that includes a burner head defining a gas manifold and a primary flame zone downstream of the burner head. The burner has a gas inlet for receiving gas. Flow-through air vents are disposed around a center of the burner head and extending through the burner head thereby enabling cold core air to flow from an annular core space upstream of the burner head to the primary flame zone downstream of the burner head. The burner also includes a plurality of premix air vents in fluid communication with the manifold for premixing air and gas within the manifold and for emitting premixed air and gas into the primary flame zone. A plurality of staging pipes extend from the manifold into the primary flame zone for conveying gas into the primary flame zone. The burner includes an ignition device extending into the primary flame zone.

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03-03-2022 дата публикации

COMBUSTION APPARATUS

Номер: US20220065445A1
Автор: KAMEI Keisuke
Принадлежит: MIURA CO., LTD.

The combustion apparatus includes a burner configured to generate flame, an ignition section configured to generate spark for igniting the burner, a flame detection section configured to detect the presence or absence of the flame of the burner, and a flame determination section configured to determine, based on a detection result of the flame detection section in a preset determination period, whether or not the flame is generated at the burner. When a predetermined condition is satisfied based on the detection result of the flame detection section in the determination period, the flame determination section determines that the flame is generated. The ignition section generates the spark across a particular period, in which the predetermined condition is not satisfied, of the determination period, and does not generate the spark in the remaining period of the determination period. 1. A combustion apparatus comprising:a burner configured to generate flame;an ignition section configured to generate spark for igniting the burner;a flame detection section configured to detect a presence or absence of the flame of the burner; anda flame determination section configured to determine, based on a detection result of the flame detection section in a preset determination period, whether or not the flame is generated at the burner,wherein when a predetermined condition is satisfied based on the detection result of the flame detection section in the determination period, the flame determination section determines that the flame is generated, andthe ignition section generates the spark across a particular period, in which the predetermined condition is not satisfied, of the determination period, and does not generate the spark in a remaining period of the determination period.2. The combustion apparatus according to claim 1 , whereinthe flame detection section detects the presence or absence of the flame based on ultraviolet light.3. The combustion apparatus according to claim ...

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25-02-2021 дата публикации

PERFORATED PANEL IN COOKING COMPARTMENT OF GAS APPLIANCE

Номер: US20210055001A1
Принадлежит:

A domestic cooking appliance for heating a food item includes a main housing; a cooking compartment in the main housing, the cooking compartment being configured to receive the food item to be heated; a shelf located in the cooking compartment and configured to support the food item to be heated; a gas burner configured to provide heat to the cooking compartment; and a perforated panel located between the gas burner and the shelf, the perforated panel having a plurality of openings. 1. A domestic cooking appliance for heating a food item , comprising:a main housing;a cooking compartment in the main housing, the cooking compartment being configured to receive the food item to be heated;a shelf located in the cooking compartment and configured to support the food item to be heated;a gas burner configured to provide heat to the cooking compartment; anda perforated panel located between the gas burner and the shelf, the perforated panel having a plurality of openings.2. The domestic cooking appliance of claim 1 , wherein the perforated panel is located above the gas burner claim 1 , and the shelf is located above the perforated panel.3. The domestic cooking appliance of claim 2 , wherein the perforated panel has a plurality of upper members and a plurality of lower members claim 2 , the upper members being offset horizontally relative to the lower members.4. The domestic cooking appliance of claim 3 , wherein every fluid path through the perforated panel includes a non-vertical component.5. The domestic cooking appliance of claim 4 , wherein the perforated panel is removable from claim 4 , and replaceable into claim 4 , the cooking compartment without damaging the perforated panel.6. The domestic cooking appliance of claim 5 , wherein the gas burner is located in a depression in a lower surface of the cooking compartment.7. The domestic cooking appliance of claim 3 , wherein the upper members are planar and are arranged along one plane.8. The domestic cooking appliance ...

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13-02-2020 дата публикации

GAS BURNER FOR BOILER

Номер: US20200049345A1
Принадлежит:

A gas burner () comprises a support plate () with a passage opening () for the gas and an annular wall () formed around the passage opening (), a diffusing wall () and a further flow element () inserted on the annular wall () in flow communication with the passage opening (), wherein the annular wall () forms a plurality of punches () with a recess () and an opposite projection (), wherein the recess () accommodates a locking protuberance () of the diffusing wall () and the projection () extends in a locking hole () of the further flow element (). 11. Gas burner () for boiler , comprising:{'b': '19', 'a diffusing wall () on which the combustion takes place,'}{'b': 2', '1', '2', '8', '11', '8', '12', '14, 'a support plate () for the connection of the burner () to a combustion chamber, said support plate () having a passage opening () for the gas and a continuous or interrupted annular wall () formed around the passage opening () and having a radially inner surface () and a radially outer surface (),'}{'b': 20', '21', '22, 'optionally a further flow element (, , ),'}{'b': 19', '20', '21', '22', '2', '8', '33', '34', '11, 'wherein the diffusing wall () and, optionally, the additional flow element (, , ), are connected to the support plate () and in flow communication with the passage opening () by mutual insertion of an annular end region (, ) thereof with the annular wall (),'}{'b': 16', '11', '17', '14', '23', '12, 'characterized in that a plurality of punches () is formed in the annular wall () forming each a recess () in the radially outer surface () and a corresponding projection () on the radially inner surface (),'}{'b': 17', '25', '33', '19', '23', '24', '33', '34', '20', '21', '22', '19, 'wherein the recess () is adapted to accommodate a locking protuberance () of the end region () of the diffusing wall () and the projection () is adapted to extend in a locking hole () of the end region (; ) of the further flow element (, , ) and/or of the diffusing wall ().'} ...

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13-02-2020 дата публикации

BURNERS FOR CONVERSION OF METHANE TO OLEFINS, AROMATICS, AND NANOPARTICLES

Номер: US20200049346A1
Принадлежит:

Embodiments of the present disclosure describe burner () configurations used in an industrial process to convert methane to olefins, aromatics, and nanoparticles/nanomaterials. Both a vitiated coflow burner and piloted turbulent burner with inhomogeneous inlets are disclosed. 1. A method of controlling secondary reactions of a burner of combustion products using injected methane , the method comprising:establishing a jet flame in coaxial flow of hot combustion products from a premixed vitiated coflow of gas passing through a porous plate or catalytic monolith, said jet flame established by gas exiting from a central tube;providing a tube positioner to translate the tip of the central tube to an offset height relative to the porous plate or catalytic monolith; andcontrolling the tube positioner to vary the offset height of the central tube tip in a dynamic manner based on chemical inputs, with said controlling resulting in different secondary reactions of combustion products from the burner.2. The method of claim 1 , wherein the central tube is a blunt-tipped tube and the gas exiting the central tube is methane.3. The method of claim 1 , wherein the coflow gas is a combination of methane and oxygen.4. The method of claim 1 , wherein offset height of the central tube tip is controlled to provide both a methane/oxygen combustion process and subsequent pyrolysis of methane to form olefins claim 1 , aromatics or nanoparticles.5. A method of controlling secondary reactions of a burner of combustion products using injected methane claim 1 , the method comprising:establishing a jet flame in coaxial flow of hot combustion products from gas passing through a porous plate or catalytic monolith, with said jet flame established by a piloted turbulent burner with inhomogeneous inlets and defining three concentric tubes;providing a tube positioner to translate an innermost one of the three concentric tubs to different positions relative to an intermediate tube; andcontrolling the ...

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22-02-2018 дата публикации

Apparatus for reducing emissions when burning various fuels

Номер: US20180051875A1
Принадлежит: Preferred Utilities Manufacturing Corp

The current invention discloses an apparatus for burning of a gaseous fuel, said apparatus comprising a gas manifold comprising a blast tube with an axis of rotation; a center bluff body; a plurality of aerodynamic blocks circumferentially distributed in the annular space between said blast tube and said center bluff body, creating passage channels for combustion air between said aerodynamic blocks; two injector nozzles located inside the wake zone of each of said aerodynamic block, said injector nozzles fluidically communicating to the gas manifold; an air control mechanism comprising a center hub and a plurality of air control modules, said air control modules fitting through said passage channels, wherein each air control module comprising an air deflector located at the outer edge of a passage channel, said deflector forming an angle theta equal to or greater than 30 degrees from said axis of rotation.

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21-02-2019 дата публикации

SYSTEM AND METHOD FOR GENERATING FLAME EFFECT

Номер: US20190056103A1
Принадлежит:

Present embodiments are directed to a system and method for generating a flame effect. An embodiment includes a nozzle assembly with an outer nozzle and an inner nozzle. At least a portion of the inner nozzle is nested within at least a portion of the outer nozzle. The system also includes a fuel source with two or more separate types of fuel. 1. A system for generating an aestheti flame effect , the system comprising:a fuel source having two or more separate types of fuel; and an outer nozzle configured to receive a first fuel from the fuel source; and', 'an inner nozzle configured to receive a second fuel from the fuel source, wherein at least a portion of the inner nozzle is nested within at least a portion of the outer nozzle;, 'a nozzle assembly, comprisingan ignition feature configured to receive the first fuel, the second fuel, or both to generate the aesthetic flame effect;at least one input device configured to determine environmental factors of an environment in which the nozzle assembly is disposed; andan automation controller configured to receive data indicative of the environmental factors determined by the at least one input device, and to operate, based on the data, one or more actuators to provide the first fuel to the outer nozzle, and to provide the second fuel to the inner nozzle.2. The system of claim 1 , wherein the fuel source is configured to supply the first fuel at a first pressure and the second fuel at a second pressure different than the first pressure.3. The system of claim 1 , wherein the automation controller is configured to operate the one or more actuators to:regulate a first supply pressure of the first fuel; andregulate a second supply pressure of the second fuel.4. The system of claim 1 , wherein the environmental factors comprise environmental brightness claim 1 , flame brightness claim 1 , weather claim 1 , time of day claim 1 , humidity claim 1 , wind conditions claim 1 , or a combination thereof.5. The system of claim 1 , ...

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21-02-2019 дата публикации

GAS FUELED WATER HEATER APPLIANCE HAVING A FLAME ARRESTOR

Номер: US20190056104A1
Автор: Ward Shaun Michael
Принадлежит:

A gas fueled water heater appliance having a flame arrestor is provided herein. The gas fueled water heater appliance may include a tank for storage of water for heater, a chamber wall, a gas burner, and the flame arrestor. The gas burner may be positioned adjacent to the tank and within a combustion chamber. The flame arrestor may be positioned beneath the gas burner. The flame arrestor may include a bottom plate and a top plate. The bottom plate may define a non-permeable region and a perforated region. The perforated region may include a plurality of apertures extending through the top plate. The top plate may be positioned above the bottom plate and may define a non-permeable region and a perforated region. The perforated region may include a plurality of apertures extending through the top plate. 1. A gas fueled water heater , comprising:a tank for storage of water for heating;a chamber wall defining a combustion chamber;a gas burner positioned adjacent to the tank and within the combustion chamber to heat the water in the tank; and a bottom plate comprising an upper surface and a lower surface, the bottom plate defining a non-permeable region and a perforated region, the perforated region comprising a plurality of apertures extending through the top plate from the upper surface to the lower surface, and', 'a top plate positioned above the bottom plate along the vertical direction, the top plate comprising an upper surface and a lower surface, the top plate defining a non-permeable region and a perforated region, the perforated region comprising a plurality of apertures extending through the top plate from the upper surface to the lower surface,', 'wherein the perforated region of the bottom plate is axially offset from the perforated region of the top plate., 'a flame arrestor positioned beneath the gas burner along a vertical direction, the flame arrestor comprising'}2. The gas fueled water heater of claim 1 , wherein the flame arrestor defines a plurality of ...

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01-03-2018 дата публикации

Overfire Air System For Low Nitrogen Oxide Tangentially Fired Boiler

Номер: US20180058687A1
Принадлежит:

The present application provides a tangentially fired boiler. The tangentially fired boiler may include a combustion chamber and an overfire air system positioned about the combustion chamber. The overfire air system may include a number of overfire air windboxes positioned in a horizontal orientation. 1. A tangentially fired boiler , comprising:a combustion chamber; andan overfire air system positioned about the combustion chamber;the overfire air system comprising a plurality of overfire air windboxes;the plurality of overfire air windboxes comprising a horizontal orientation.2. The tangentially fired boiler of claim 1 , wherein the combustion chamber comprises a wall with a plurality of tubes therein.3. The tangentially fired boiler of claim 2 , wherein the plurality of tubes comprises a spiral configuration.4. The tangentially fired boiler of claim 3 , wherein the spiral configuration extends to a spiral to vertical transition line.5. The tangentially fired boiler of claim 4 , wherein the overfire air system is positioned above the spiral to vertical transition line.6. The tangentially fired boiler of claim 4 , wherein the plurality of tubes comprises a vertical configuration above the spiral to vertical transition line.7. The tangentially fired boiler of claim 2 , wherein the plurality of tubes comprises a plurality of water tubes.8. The tangentially fired boiler of claim 2 , wherein the plurality of tubes comprises a substantially uniform spacing.9. The tangentially fired boiler of claim 1 , wherein the combustion chamber comprises a plurality of windboxes.10. The tangentially fired boiler of claim 9 , wherein the plurality of windboxes comprises an air compartment and a fuel compartment.11. The tangentially fired boiler of claim 9 , wherein the plurality of windboxes may tilt through about thirty degrees and yaw through about twenty-five degrees.12. The tangentially fired boiler of claim 9 , further comprising a pulverized solid fuel supply in communication ...

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01-03-2018 дата публикации

CONSUMABLE TIP BURNERS , SUBMERGED CONBUSTION MELTERS INCLUDING SAME, AND METHODS

Номер: US20180058688A1
Принадлежит:

Combustion burners, burner panels, submerged combustion melters including the panels, and methods of using the same are disclosed. In certain embodiments, the burner includes an annular liquid cooled jacket defining a central longitudinal through passage. An inner conduit is positioned substantially concentrically within an outer conduit, the latter positioned in the through passage, each conduit comprising proximal and distal ends, the conduits configured so that the outer and inner conduits are movable axially. The inner conduit forms a primary passage and the outer conduit forms a secondary passage between the outer conduit and the inner conduit. In one embodiment the outer conduit has an exterior surface configured along at least a portion thereof with threads mating with adjacent threads on an inner surface of the annular liquid cooled jacket. Other embodiments including lock and release dogs or bolt arrangements. The burners promote burner life and melter campaign length. 1. A combustion burner comprising:(a) an annular liquid cooled jacket defining a central longitudinal through passage;(b) at least one inner conduit and a substantially concentric outer conduit positioned in the through passage, each conduit comprising proximal and distal ends, the conduits configured so that the outer and inner conduits are movable axially, the at least one inner conduit forming a primary passage and the outer conduit forming a secondary passage between the outer conduit and the at least one inner conduit; and(c) the outer conduit having an exterior surface configured along at least a portion thereof with threads mating with adjacent threads on an inner surface of the annular liquid cooled jacket.2. The burner of wherein the distal end of the outer conduit extends beyond the distal end of the at least one inner conduit claim 1 , and both extend beyond a distal end of the annular liquid cooled jacket.3. The burner of wherein the distal end of the at least one inner conduit ...

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01-03-2018 дата публикации

Gas Heating Device

Номер: US20180058693A1
Автор: Yang Cheng-Nan
Принадлежит:

A gas heating device includes a main body defining a combustion chamber, a catalyst disposed in the combustion chamber, and an electric thermal device provides electric thermal energy to heat the catalyst and disposed in the combustion chamber and adjacent to a side of the catalyst. 1. A gas heating device comprising:a main body defining a combustion chamber;a catalyst disposed in the combustion chamber; andan electric thermal device providing electric thermal energy to heat the catalyst and disposed in the combustion chamber and adjacent to a side of the catalyst.2. The gas heating device as claimed in claim 1 , wherein the main body includes a base and a gas conduit extending through the base and connected to and in fluid communication with the combustion chamber claim 1 , and wherein the catalyst is connected to the gas conduit.3. The gas heating device as claimed in claim 2 , wherein the electric thermal device includes a first conducting wire claim 2 , a second conducting wire claim 2 , and a heating coil including first and second ends thereof respectively connecting to first ends of the first and second conducting wires claim 2 , wherein the first ends of the first and second conducting wires and the heating coil are disposed in the combustion chamber claim 2 , and wherein the first and second conducting wires extend through the base and each have an end disposed outside the combustion chamber.4. The gas heating device as claimed in claim 3 , wherein the heating coil includes a wire being looped and which is made of high electrical resistivity material and which is made of metal.5. The gas heating device as claimed in claim 2 , wherein the catalyst includes an end thereof opposing the base and defining an opening claim 2 , wherein the catalyst is meshed and defines a hollow channel.6. The gas heating device as claimed in claim 3 , wherein the catalyst includes an end thereof opposing the base and defining an opening claim 3 , wherein the catalyst is meshed ...

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20-02-2020 дата публикации

Solid Fuel Burner

Номер: US20200056780A1
Принадлежит: Mitsubishi Hitachi Power Systems Ltd

The present invention provides a solid fuel burner which ensures ignition performance and flame holding performance of a fuel nozzle. The present invention provides a solid fuel burner which achieves cost reduction by simplifying the structure of the fuel nozzle, for example, and which ensures the ignition performance and flame holding performance of the fuel nozzle. Further, the present invention provides a burner which enables stable combustion by both solid fuel and oil combustion with the suppression of soot and dust and mist generated during the oil start-up envisaged. The solid fuel burner of the present invention includes: a fuel nozzle straight tube portion allowing a mixing gas of a solid fuel and its carrier gas to flow therethrough; a fuel nozzle throttling portion narrowing a flow passage of the mixing gas passed through the fuel nozzle straight tube portion; a fuel nozzle diffusion portion horizontally expanding the flow passage of the mixing gas passed through the fuel nozzle throttling portion; a fuel nozzle outlet portion connected to the fuel nozzle diffusion portion and having an outlet flattened in shape; a ring-shaped outer peripheral flame stabilizer disposed on an outer periphery of the fuel nozzle outlet portion; and an inner flame stabilizer disposed in the fuel nozzle outlet portion and horizontally dividing the mixing gas passed through the fuel nozzle diffusion portion.

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20-02-2020 дата публикации

Field installed perforated flame holder and method of assembly and installation

Номер: US20200056782A1
Принадлежит: Clearsign Technologies Corp

A flame holder system includes a support structure configured to support a plurality of burner tiles within a furnace volume. The support structure includes a frame supporting a support lattice. A number of burner tiles are arranged in an array on the support lattice. The support structure is configured to be assemblable without tools inside the furnace volume, using components that are sized to fit through an access port in a wall of the furnace.

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04-03-2021 дата публикации

REGENERATIVE BURNER FOR STRONGLY REDUCED NOx EMISSIONS

Номер: US20210063013A1
Принадлежит:

The invention relates to a burner with a refractory burner body for burning liquid or aerosol fuels, in particular, gaseous fuels. With the aim of reducing NOemissions, the burner body comprises a gas nozzle and a plurality of air nozzles , which are at least partially formed as integral mouldings in the burner body and flow out on a front side of the burner body. Here, the air nozzles are symmetrically arranged around the gas nozzle and diverge at an angle α to the gas nozzle. Likewise, the invention relates to a method for burning liquid or aerosol fuels, in particular, gaseous fuels with reduced NOemissions. 1. Burner with a refractory burner body for burning liquid or aerosol fuels , in particular , gaseous fuels.whereinthe burner body comprises a gas nozzle and a plurality of air nozzles which are at least partially formed as integral mouldings in the burner body and flow out on a front side side of the burner body.wherein the air nozzles are arranged symmetrically around the gas nozzle and diverge at an angle of the gas nozzle.2. Burner according to claim 1 ,whereinthe angle α is between 1 and 45 degrees.3. Burner according to claim 1 ,whereinthe burner body comprises two to eight, preferably four, air nozzles.4. Burner according to claim 1 ,whereinthe air nozzles comprise outlet openings with a total surface that is not more than half of a circular surface of the front side of the burner body.5. Burner according to claim 1 ,whereinthe air nozzles comprise outlet openings, the widths of which grow radially from the gas nozzle.6. Burner according to claim 1 ,whereinthe gas nozzle comprises a pre-combustion chamber which is formed in the burner body, and at least one air nozzle comprises a pre-combustion air nozzle, which connects the air nozzle to the pre-combustion chamber.7. Burner according to claim 1 ,whereinthe gas nozzle comprises a swirl nozzle for swirling the fuel, which is used in the burner body.8. Burner according to claim 1 ,whereinthe burner body ...

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10-03-2016 дата публикации

SYSTEM AND METHOD FOR REDUCING EMISSIONS FROM A BOILER

Номер: US20160069562A1
Принадлежит:

A system and method for reducing emissions from a boiler. A boiler generally has a combustion area. The system further includes a fuel pipe for delivering fuel. The system further includes a conduit. A bore extends through the conduit. The bore of the conduit is in fluid communication with the fuel pipe and the combustion area of the boiler. A pre-ignition source is positioned in the conduit. The pre-ignition source operates to pre-ignite at least a portion of the fuel flowing through the conduit. 1. A system for reducing emissions in a boiler having a combustion area , comprising:a plurality of coal supply elevations in the combustion area, each fuel supply elevation including a conduit having a bore extending there through, the bore being in fluid communication with a fuel pipe and the combustion area of the boiler; anda pre-ignition source positioned in the conduit disposed at the lowest fuel supply elevation and operable to pre-ignite at least a portion of the fuel flowing through conduit prior to the fuel entering the combustion area;wherein the conduit disposed above the lowest fuel supply elevation does not include a pre-ignition source to pre-ignite any portion of the fuel flowing there through.2. The system of claim 1 , wherein the fuel comprises carbonaceous fuel.3. The system of claim 2 , wherein the fuel comprises pulverized coal.4. The system of claim 3 , wherein the pre-ignition source continually pre-ignites at least a portion of the fuel flowing through the conduit disposed at the lowest fuel supply elevation during regular operation of the boiler.5. The system of claim 4 , wherein the ignition source operates throughout a boiler load range.6. The system of claim 1 , further comprising:{'b': '50', 'a first pre-ignition conduit defining a first bore extending there through, the first pre-ignition conduit being disposed in the bore of the conduit disposed at the lowest fuel supply elevation, the pre-ignition source () being positioned in the bore of ...

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10-03-2016 дата публикации

TOP PORTED BURNER

Номер: US20160069564A1
Автор: AHMED MALLIK
Принадлежит:

A burner with a tubular body has a proximal end, a distal end, and a medial portion therebetween and further defining an upper side and a lower side. The burner has a gas orifice on the proximal. A plurality of burner ports open on the top side and span between the medial portion to the distal end. At least one carry over port opens between the top side and bottom side of the body proximal to the plurality of burner ports. At least one transition ports opens on the medial portion of the body between the at least one carry over port and the plurality of burner ports. 1. A burner comprising:a tubular body having a proximal end, a distal end, and a medial portion therebetween and further defining an upper side and a lower side;a gas orifice on the proximal end;a plurality of burner ports opening on the top side and spanning between the medial portion to the distal end;at least one carry over port opening between the top side and bottom side of the body proximal to the plurality of burner ports; andat least one transition ports opening on the medial portion of the body between the at least one carry over port and the plurality of burner ports.2. The burner of claim 1 , further comprising a carry over tube oriented perpendicularly to the tubular body and aligned proximate to the at least one carry over port.3. The burner of claim 2 , wherein the carry over tube is offset distally from a center of the at least one carry over port.4. The burner of claim 1 , further comprising an upper stud inserted partially into the tubular body from the upper side and distally from a center of the at least one carry over port.5. The burner of claim 4 , further comprising a lower stud inserted partially into the tubular body from the lower side and distally from the upper stud.6. The burner of claim 5 , wherein the upper and stud and lower stud are both located proximally to the plurality of burner ports.7. The burner of claim 1 , wherein the tubular body comprises a front piece and a ...

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08-03-2018 дата публикации

Smart Candle Platform and System

Номер: US20180066840A1
Принадлежит:

A Smart Candle Platform may be configured to produce candle light using a natural wax candle as its fuel source or any other fuel source capable of producing light, including liquid fuels if so configured. The outer shell, inner cover, top cover and base provides a beautiful exterior shell which does not melt but emulates the look of a traditional pillar candle. The outer shell may be changeable/replaceable allowing for style and or seasonal changes. A Smart Candle Platform having multiple interactive systems and sensors for production of natural light via a safe, controllable device which may communicate with other similar configured devices or smart devices having application software embedded therein i.e. a smart phone having an app. is disclosed. The Smart Candle Platform may be configured to allow for auto-extinguishment. The Smart Candle Platform may be configured to allow for the addition of smells or scents. 1. A living flame candle platform formed to emulate a traditional pillar candle in appearance comprising:a) an outer shell having a hollow interior connecting an upper end and a lower end and forming a first opening therein;b) an inner cover having a hollow interior connecting an upper end and an open lower end wherein the upper end has an annular opening therein, wherein the inner cover is positioned within the hollow interior of the outer shell;c) a top cover configured with an aperture, the top cover positioned in the interior of the outer shell upper end, wherein the top cover aperture and the inner cover main aperture are aligned to form an annular opening from the top cover aperture to the bottom of the inner cover;d) a fuel source configured as a cartridge and positioned in the annular opening of the inner cover; and,e) a base adapted for cooperative engagement with the lower end of the outer shell and the lower end of the inner cover and upon which the cartridge may rest, the base adapted to enclose the cartridge.2. The living flame candle ...

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08-03-2018 дата публикации

GAS COMBUSTOR AND SAFETY SWITCH THEREOF

Номер: US20180066842A1
Автор: TSAI Wei-Ming
Принадлежит:

A gas combustor comprises a gas container, a fuel gas controlling device, a housing, a piezoelectric device and a combustion device. The safety switch is slidably disposed in an opening of the housing and includes a slide member, a fasten member and a passive member, adjacent surfaces of the slide member and the fasten member are disposed with a connecting mechanism and a radial sliding mechanism, thereby enabling the slide member to perform a radial sliding motion towards the left or the right at the front end of the fasten member; a rear surface of the passive member is formed with a lock tenon abutted against a block tenon of the fuel gas controlling device, thereby forming a lucked status; when the slide member is pulled towards the left or the right, the lock tenon is released from the block tenon, thereby forming an unlocked status. 1. A gas combustor , comprising:a gas container, with the top end thereof formed with a connection part having a discharging nozzle;a fuel gas controlling device, including a base connected to said connection part, wherein the exterior of said base is formed with a block tenon, and the interior thereof is formed with a fuel gas passageway for receiving fuel gas supplied from said discharging nozzle, an upstream end of said fuel gas passageway is disposed with an air inlet control valve, said air inlet control valve is closed in a normal status, and the front end of said air inlet control valve is axially disposed with an air inlet control rod capable of allowing an opened loop to be formed, so that said fuel gas is able to be discharged from a gas ejecting nozzle disposed at a downstream end of said fuel gas passageway, said gas ejecting nozzle is received in an insertion slot allowing a combustion device to be inserted and positioned;a housing, used for enclosing and fastening said gas container and said fuel gas controlling device, and including a front opening and a top opening allowing said combustion device to be disposed, ...

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27-02-2020 дата публикации

GAS FIRED PROCESS HEATER WITH ULTRA-LOW POLLUTANT EMISSIONS

Номер: US20200064021A1
Принадлежит: GAS TECHNOLOGY INSTITUTE

Process heaters and associated methods of processing with ultra-low pollutant emissions are provided. The process heaters and methods utilize a heat exchange tube having disposed therein a radiant permeable matrix burner at a first end of the tube. The tube further includes a thermally insulated insert disposed adjacent the radiant burner opposite an oxidant-fuel mixer that feeds the burner. The process heaters and methods act to reduce emissions of CO and NOx. 1. A process heater comprising:a tank adapted to contain a body of liquid;a heat exchange tube including at least a first end disposed in the body of liquid;a radiant permeable matrix burner disposed inside of the heat exchange tube at the first end, the burner producing hot combustion products directed into the heat exchange tube;an oxidant-fuel mixer to mix an oxidant material with a fuel material to form a combustible mixture of oxidant and fuel, the oxidant-fuel mixer exteriorly disposed adjacent the first end of the heat exchange tube in oxidant-fuel mixture fluid transfer communication with the radiant burner; anda thermally insulated insert disposed within the heat exchange tube adjacent the radiant burner opposite the oxidant-fuel mixer.2. The process heater of wherein the thermally insulated insert has a shape of an annular cylinder.3. The process heater of wherein the body of liquid comprises water.4. The process heater of wherein the oxidant material comprises air.5. The process heater of wherein the fuel material comprises natural gas.6. The process heater of wherein the oxidant-fuel mixer comprises a fuel injector.7. The process heater of wherein the oxidant-fuel mixture comprises an air to fuel ratio that is 0% up to 30% air in excess of complete combustion of the fuel.8. The process heater of wherein the oxidant-fuel mixture combusts within or on the surface of the permeable matrix.9. The process heater of wherein the radiant burner combusts the oxidant-fuel mixture to produce combustion ...

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09-03-2017 дата публикации

Heating assembly

Номер: US20170067631A1
Автор: David Deng
Принадлежит: Individual

A heating assembly can be used in a dual fuel heater to mix air with fuel to be combusted at the burner. The heating assembly can include a burner, a first nozzle, a second nozzle, a first conduit and a second conduit. The first conduit can have an opening configured to allow air to mix with fuel injected into the first conduit by the first nozzle.

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09-03-2017 дата публикации

BURNER FOR GAS COOKER

Номер: US20170067645A1
Принадлежит:

A burner for a gas cooker that includes a burner port defining an interior area, the burner port including an opening to the interior area; one or more tubes that are coupled to the burner port and that are configured to provide mixed gas to the interior area of the burner port; a heating element that is configured to cover the opening of the burner port and that is heated by gas-generated heat; and a shielding plate that (i) is coupled between the heating element and the burner port, (ii) is configured to cover a first portion of the opening of the burner port, and (iii) is configured to spread mixed gas that is provided from the one or more tubes into the interior area of the burner port. 1. A burner for a gas cooker comprising:a burner port defining an interior area, the burner port including an opening to the interior area;one or more tubes that are coupled to the burner port and that are configured to provide mixed gas to the interior area of the burner port;a heating element that is configured to cover the opening of the burner port and that is heated by gas-generated heat; anda shielding plate that (i) is coupled between the heating element and the burner port, (ii) is configured to cover a first portion of the opening of the burner port, and (iii) is configured to spread mixed gas that is provided from the one or more tubes into the interior area of the burner port,wherein the first portion of the opening is oriented toward one or more coupling portions that couple the burner port to the one or more tubes.2. The burner of claim 1 , further comprising a plurality of ribs that are configured to guide mixed gas flow provided from the one or more tubes and that are located in the interior area of the burner port.3. The burner of claim 2 , wherein the shielding plate includes a plurality of holes claim 2 , wherein mixed gas is configured to pass through the plurality of holes.4. The burner of claim 3 , wherein the interior area of the burner port includes a ...

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15-03-2018 дата публикации

ZONAL BARBECUE GRILL WITH CARRYOVER PROVISION

Номер: US20180070770A1
Автор: AHMED MALLIK
Принадлежит:

A cooking grill having a cooking grate, a plurality of gas burners arranged below the cooking grate, and at least one baffle between adjacent ones of the plurality of gas burners having an apex proximate the cooking grate and having a pair of opposite spaced apart walls extending downwardly at least to a level of the plurality of gas burners. 1. A cooking grill comprising:a cooking grate;a plurality of gas burners arranged below the cooking grate; andat least one baffle between adjacent ones of the plurality of gas burners having an apex proximate the cooking grate and having a pair of opposite spaced apart walls extending downwardly at least to a level of the plurality of gas burners.2. The cooking grill of claim 1 , further comprising at least one carryover tube passing through the at least one baffle to operationally connect the adjacent ones of the plurality of gas burners.3. The cooking grill of claim 1 , wherein the at least one baffle extends to a floor of a firebox containing the gas burners and supporting the cooking grate.4. The cooking grill of claim 1 , wherein the at least one baffle defines a plurality of independent cooking zones on the cooking grate claim 1 , the plurality of zones being demarcated by the apex of the at least one baffle and each cooking zone being substantially functionally isolated from heat produced by a burner associated with the adjacent zone.5. The cooking grill of claim 1 , wherein a plurality of baffles define a plurality of independent cooking zones on the cooking grate claim 1 , the plurality of zones being demarcated by the apices of the plurality of baffles claim 1 , and each cooking zone being substantially functionally isolated from heat produced by a burner associated with the adjacent zone.6. The cooking grill of claim 1 , wherein the at least one baffle is arranged to run front to back below the cooking grate such that the cooking grate is divided into cooking zones that are arranged side by side on the cooking grate. ...

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17-03-2016 дата публикации

Burner for submerged combustion melting

Номер: US20160075587A1
Автор: John Wayne Baker
Принадлежит: JOHNS MANVILLE

Submerged combustion burners having a burner body and a burner tip body connected thereto. The burner body has an external conduit and a first internal conduit substantially concentric therewith. The external conduit and first internal conduit form an annulus for passing a cooling fluid there between. A second internal conduit substantially concentric with the external conduit forms a second annulus between the first and second internal conduits. A burner tip body is connected to the burner body at ends of the external and first internal conduits. The burner tip body includes a generally central flow passage for a combustible mixture, the flow passage defined by an inner wall of the burner tip body. The burner tip body further has an outer wall and a crown connecting the inner and outer walls. The crown includes at least one physical convolution sufficient to increase surface area and fatigue resistance of the crown.

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17-03-2016 дата публикации

DUAL FUEL, STAGED AIR, LOW NOx GAS BURNER

Номер: US20160076762A1
Автор: Kraus Kurt
Принадлежит:

A dual fuel, staged air, low NOx gas burner. The burner assembly includes an elongated air inlet device having a first open end for introduction of air. A first fuel source conduit delivers a first fuel into the air inlet device to a plurality of axially aligned fuel fingers wherein the fingers are spaced in an annular pattern within the air inlet device. A second fuel source conduit delivers a second fuel into the air inlet device to a castellation arm assembly having a plurality of radially extending castellation arms with troughs therein, wherein the axially aligned fuel fingers are juxtaposed between the radially extending castellation arms. 1. A dual fuel , staged air , low NOx gas burner , which burner comprises:an elongated air inlet device having a first open end for introduction of air;a first fuel source conduit delivering a first fuel into said air inlet device;at least one fuel finger in fluid communication with said first fuel source conduit, said fuel finger within said elongated air inlet device;a second fuel source conduit delivering a second fuel into said elongated air inlet device; anda castellation arm assembly in fluid communication with said second fuel source conduit, said castellation arm assembly having a plurality of radially extending castellation arms with troughs therein.2. A dual fuel claim 1 , staged air claim 1 , low NOx gas burner as set forth in wherein said at least one fuel finger includes a plurality of axially aligned fuel fingers spaced in an annular pattern.3. A dual fuel claim 2 , staged air claim 2 , low NOx gas burner as set forth in wherein said plurality of axially aligned fuel fingers are in fluid communication with said first fuel source conduit through a ring manifold to distribute said first fuel from said first fuel source conduit to said plurality of axially aligned fuel fingers.4. A dual fuel claim 2 , staged air claim 2 , low NOx gas burner as set forth in wherein said plurality of axially aligned fingers are ...

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15-03-2018 дата публикации

DOWNSHOT BURNER

Номер: US20180073728A1
Принадлежит: DOOSAN BABCOCK LIMITED

A burner outlet set for a downshot firing burner is described comprising a first outlet array having at least one primary outlet, and at least one vent air outlet disposed either side of the primary outlet in an array direction of the first outlet array; second and third outlet arrays each comprising an array of secondary air outlets, respectively disposed either side of the a first outlet array. A burner system with a plurality of such burner outlet sets, a burner arch configured for downshot firing and having one or more such burner sets, and a combustion furnace with one or more such arches are also described. 1. A burner outlet set for a downshot firing burner comprising:a first outlet array comprising at least one primary outlet, and at least one vent air outlet disposed either side of the primary outlet in an array direction of the first outlet array;second and third outlet arrays each comprising an array of secondary air outlets, respectively disposed laterally either side of the a first outlet array,2. A burner outlet set thus comprises a first outlet array disposed in an elongate first array direction and comprising at least one primary outlet with at least one vent air outlet disposed either side of the primary outlet , and paired second and third outlet arrays each comprising a plurality of secondary air outlets respectively disposed in elongate second and third array directions that are laterally spaced either side of the first outlet array. Typically the second and third outlet arrays are even laterally spaced either side of the first outlet array. Typically the second and third outlet arrays and arrayed in elongate array directions generally parallel to the first array direction. Typically each of the first , second and third outlet arrays extend in elongate array directions to the same longitudinal extent.3. A burner outlet set in accordance with wherein each primary outlet is a square or rectangular outlet disposed with a median line direction ...

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07-03-2019 дата публикации

Nozzle structure for hydrogen gas burner apparatus

Номер: US20190072273A1
Принадлежит: Toyota Motor Corp

The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus includes an outer tube and an inner tube concentrically disposed inside the outer tube. The inner tube is disposed so that an oxygen-containing gas is discharged from an opened end of the inner tube in an axial direction of the inner tube. The outer tube extends beyond the opened end of the inner tube in the axial direction of the inner tube so that a hydrogen gas passes through a space between an inner circumferential surface of the outer tube and an outer circumferential surface of the inner tube.

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07-03-2019 дата публикации

NOZZLE STRUCTURE FOR HYDROGEN GAS BURNER APPARATUS

Номер: US20190072274A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

The present disclosure provides a nozzle structure for a hydrogen gas burner apparatus, capable of reducing an amount of generated NOx. A nozzle structure for a hydrogen gas burner apparatus, includes an outer pipe, an inner pipe disposed concentrically with the outer pipe, and a stabilizer configured to throttle a space between the outer pipe and the inner pipe. The inner pipe includes an inner pipe end part with an axial opening hole and a circumferential opening hole formed therein, the axial opening hole penetrating in an axial direction of the inner pipe, the circumferential opening hole penetrating in a radial direction of the inner pipe. A hydrogen gas flows through the inner pipe. The circumferential opening hole lets the hydrogen gas flow out from the inner pipe in the radial direction of the inner pipe. 1. A nozzle structure for a hydrogen gas burner apparatus , comprising an outer pipe , an inner pipe disposed concentrically with the outer pipe , and a stabilizer configured to throttle a space between the outer pipe and the inner pipe , whereinthe inner pipe comprises an inner pipe end part with an axial opening hole and a circumferential opening hole formed therein, the axial opening hole penetrating in an axial direction of the inner pipe, the circumferential opening hole penetrating in a radial direction of the inner pipe,a hydrogen gas flows through the inner pipe,the circumferential opening hole lets the hydrogen gas flow out from the inner pipe in the radial direction of the inner pipe,the axial opening hole lets hydrogen gas flow out from the inner pipe in the axial direction of the inner pipe,an oxygen-containing gas flows between the outer pipe and the stabilizer,{'b': 2', '1', '1', '2, 'a ratio S/S between a cross-sectional area S of the axial opening hole and a cross-sectional area S of the circumferential opening hole is equal to or lower than 50%, and'}{'b': 3', '4', '4', '3, 'a ratio S/S between a cross-sectional area S of a space between ...

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