US20080153047A1 - Heating cooking appliance and burner system of the same - Google Patents

Heating cooking appliance and burner system of the same Download PDF

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Publication number
US20080153047A1
US20080153047A1 US11/925,576 US92557607A US2008153047A1 US 20080153047 A1 US20080153047 A1 US 20080153047A1 US 92557607 A US92557607 A US 92557607A US 2008153047 A1 US2008153047 A1 US 2008153047A1
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United States
Prior art keywords
gas
burner
nozzle
mixing tube
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/925,576
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English (en)
Inventor
Dae Rae Lee
Jung Wan Ryu
Dae Bong Yang
Sang Min LYU
Yong Ki Jeong
Young Soo Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
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LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JEONG, YONG KI, KIM, YOUNG SOO, LEE, DAE RAE, LYU, SANG MIN, RYU, JUNG WAN, YANG, DAE BONG
Publication of US20080153047A1 publication Critical patent/US20080153047A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/101—Tops, e.g. hot plates; Rings provisions for circulation of air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/107—Pan supports or grates therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/108—Mounting of hot plate on worktop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/04—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate
    • F24C3/047—Ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/04—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate
    • F24C3/06—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate without any visible flame
    • F24C3/067—Ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14003—Special features of gas burners with more than one nozzle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14063—Special features of gas burners for cooking ranges having one flame ring fed by multiple venturis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14641—Special features of gas burners with gas distribution manifolds or bars provided with a plurality of nozzles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present disclosure relates to a heating cooking appliance, and more particularly, to a heating cooking appliance and a burner system of the heating cooking appliance that are capable of reducing the size of the cooking appliance while obtaining high combustion efficiency and reduced airflow resistance.
  • a heating cooking appliance is an apparatus that heats and cooks food.
  • the present disclosure particularly addresses a gas cook top that generates heat through gas combustion to heat and cook food.
  • This cook top which employs a hot plate (also referred to as a ‘hob’), is being used increasingly.
  • a cook top that operates through gas combustion includes a burner system.
  • the burner system is a device that mixes gas with air for combustion.
  • the burner system discharges gas fuel through a predetermined pipe, uses the air pressure being reduced around the discharged gas fuel, and mixes the gas with air in a burner pot. Then the air-gas mixture that enters the burner pot is mixed uniformly within the burner pot, the uniform mixture is combusted, and heat generated by the combustion is transferred to food through radiation and conduction, whereupon the food is heated and cooked.
  • a total height of the heating cooking appliance increases when a height of the burner pot increases, thereby reducing aesthetic for a user, increasing the material cost and the distribution cost, and occupying much space.
  • Embodiments provide a heating cooking appliance and a burner system of the same, which can improve aesthetic for a user and reduce manufacturing costs by reducing a height of a burner pot.
  • Embodiments also provide a heating cooking appliance and a burner system of same, which can introduce a maximum amount of air and gas in the burner system to raise gas combustion efficiency and obtain high heat output, and ensure optimum operating reliability even when the burner system is slimmed.
  • a heating cooking appliance comprises: a case; a plate covering a top of the case; a burner system under the plate; and an exhaust unit at a side of the plate, wherein the burner system includes a burner pot providing a mixing space in which at least gas and air are uniformly mixed, a mixing tube having a venturi defining a boundary between a convergence and a divergence thereof and introducing the gas and air into the burner pot, and a nozzle maintained a predetermined distance from a mixing tube.
  • a burner system comprises: a burner pot providing a mixing space in which at least gas and air are uniformly mixed; a mixing tube through which the gas and air are supplied into the burner pot; and a nozzle maintained a predetermined distance from a mixing tube unit, wherein the nozzle is provided with a flow guider of which the outer surface diameter is gradually reduced, and a momentum of a gas flow discharged from the nozzle is uniformly transferred to ambient air, such that air flowing along the flow guider flows in concert with the gas flow.
  • a burner system comprises: a burner pot including a mixing space in which at least gas and air are uniformly mixed; a mixing tube through which the gas and air are supplied into the burner pot; and a nozzle maintaining a predetermined distance apart from the mixing tube, wherein a discharging hole of the nozzle is formed such that a ratio of a length L/a diameter D of the discharging hole is in a range of 0.9 to 1.1, to increase an amount of air introduced into the mixing tube.
  • a total height of the heating cooking appliance increases when a height of the burner pot increases, thereby reducing aesthetic for a user, increasing the material cost and the distribution cost, and occupying much space.
  • the present disclosure slims a cooking heating appliance with a burner system that introduces a maximum amount of air and gas into the burner system to raise gas combustion efficiency, improve aesthetic appeal for a user, and reduce various costs such as material, distribution, and installation costs.
  • FIG. 1 is a perspective view of a heating cooking appliance according to the present disclosure.
  • FIG. 2 is an exploded perspective view of a heating cooking appliance according to the present disclosure.
  • FIG. 3 is a plan view of a heating cooking appliance in which a ceramic plate is removed according to the present disclosure.
  • FIG. 4 is a cross-sectional view of a burner system taken along a line I-I′ of FIG. 1 according to the present disclosure.
  • FIG. 5 is a perspective view of a burner system according to the present disclosure.
  • FIG. 6 is a cross-sectional view of a nozzle according to the present disclosure.
  • FIG. 7 is a graph illustrating the relationship between the ratio of length L/diameter D of a discharging hole and amount of heat in a burner system.
  • FIG. 8 is a graph illustrating the relationship between the ratio of length L/diameter D of a discharging hole and air ratio in a burner system.
  • FIG. 9 is a cross-sectional view of a mixing tube in a burner system according to the present disclosure.
  • FIG. 10 is a graph illustrating the amount of carbon monoxide (CO) generated from combustion gas according to different positions of a venturi.
  • FIG. 11 a cross-sectional view of a nozzle according to another embodiment of the present disclosure.
  • FIG. 1 is a perspective view of a heating cooking appliance according to the present disclosure.
  • FIG. 2 is an exploded perspective view of a heating cooking appliance according to the present disclosure.
  • a heating cooking appliance includes a case 2 that protects the lower portion of the main body to form the outer appearance of the lower portion of the appliance and having an open upper side, a ceramic plate 1 mounted on the upper side of the case 2 , and a top frame 3 covering the peripheral portion of the ceramic plate 1 .
  • added external features of the heating cooking appliance include an exhaust grill 13 formed at the rear portion of the cooking appliance for exhausting combusted gas, and a switch 14 formed at the approximate frontal portion of the ceramic plate 1 for on/off controlling of gas combustion. While the location and shape of the exhaust grill 13 and the switch 14 be varied in configuration and type, an exhaust for exhausting combusted gas and a switch for performing the on/off controlling of combusting gas are, of course, required.
  • the internal space defined by the case 2 and the ceramic plate 1 holds a plurality of components for performing gas combustion and exhausting, and controlling of the cooking appliance. A configurative description of the inside will be given.
  • a mixing tube unit 6 is disposed on the side surface of each burner pot 4 to supply a gas mixture through the side surface of the burner pot 4 .
  • a nozzle unit 5 is disposed at a uniform distance from the mixing tube unit 6 , and discharges gas toward the inlets of the mixing tube unit 6 .
  • a nozzle (refer to reference numeral 15 of FIG. 3 ) is disposed in a front direction of the nozzle unit 5 to discharge the gas having a high speed toward the mixing tube unit 6 .
  • the burner frame 11 is disposed on top of the burner pots 4 .
  • the burner frame 11 supports the positions of the burner pots 4 and provides an exhaust flow of spent gas combusted on a glow plate 12 .
  • An exhaust unit 10 for externally exhausting spent gas is disposed at the rear of the burner frame 11 , and the exhaust grill 13 is disposed above the exhaust unit 10 .
  • the glow plate 12 is disposed on the open upper side of the burner pot 4 , and the glow plate 12 is heated at high temperatures generated by the combusting of the air-gas mixture.
  • radiant energy in a frequency range corresponding to the physical properties of the glow plate 12 is emitted.
  • the radiant energy of the glow plate 12 includes at least visible light and preferably red light frequencies, so that a user can perceive, by means of the visible light, that the heating cooking appliance according to the present disclosure is operating.
  • the glow plate 12 also functions to heat food, and to heat the ceramic plate 1 that also heats food.
  • Gas from the outside is supplied through a main gas supply line 8 to the cooking appliance, and the supply of gas to each burner system is mediated through a gas valve 7 (which is controlled by the switch 14 . After passing through the gas valve 7 , the gas passes through a respective branch gas supply line 9 to each of the nozzle units 5 and discharge the gas through the nozzle 15 .
  • FIG. 3 is a plan view of a heating cooking appliance in which a ceramic plate is removed according to the present disclosure.
  • FIG. 3 there are two comparatively large burner pots 4 disposed at each side of the case 2 , and a smaller burner pot 4 provided between the two larger burner pots 4 .
  • food vessels of corresponding heating sizes are placed over the respective burner pots 4 to heat food within the vessels.
  • the smaller-sized burner pot 4 in the center of the case 2 is supplied with gas-air mixture from front to rear, and the mixture of air and gas is completely mixed in a second stage within the burner pot. After the gas mixture is combusted on the glow plate 12 , the spent gas is exhausted through the exhaust unit at the rear.
  • the two comparatively larger burner pots 4 on either side of the case 2 are supplied with gas and air from rear to front, and the gas mixture is mixed in a second stage within the burner pot, after which the mixture is combusted on the glow plate 12 and then exhausted toward the rear of the burner pot.
  • the above arrangement of the burner pots 4 is intended to optimally configure a heating burner system.
  • the burner system of the heating cooking appliance provides a structure that can introduce the maximum amount of air and gas and promote mixture of the air and gas to prevent excessive loss of gas combustion efficiency in spite of reducing a height of the burner pot.
  • a feature of the present disclosure is to improve configurations of the nozzle 15 and the mixing tube 61 .
  • FIG. 4 is a cross-sectional view of a burner system taken along a line I-I′ of FIG. 1 according to the present disclosure.
  • FIG. 5 is a perspective view of a burner system according to the present disclosure.
  • a burner pot 4 is provided at the top of the case 2 .
  • the mixing tube unit 6 is disposed on the side surface of the burner pot 4 .
  • the nozzle unit 5 is disposed at a predetermined distance from the mixing tube unit 6 to be proximate to the inlets of the mixing tube unit 6 .
  • the nozzle unit 5 includes a plurality of nozzles 15 .
  • the plurality of nozzles 15 are fixed to a nozzle holder 16 .
  • the mixing tube unit 6 is wholly fixed to the burner pot 4 in a state that a plurality of mixing tubes 61 are fixed to the mixing tube unit 6 . Hence, a relative operation fixing the plurality of mixing tubes 61 to the burner pot 4 can be easily performed.
  • the mixing tube unit 6 is aligned with the openings 42 of the burner pot 4 . Also, because the mixing tubes 61 and the openings 42 provided on the mixing tube unit 6 are mutually provided in plurality to respectively align, the amount of air that enters along with the gas is maximized.
  • the gas discharged from the nozzle 15 enters the mixing tube unit 6 at high speed.
  • the gas passes at high speed through the inlet of the mixing tube unit 6 , the neighboring region of the opening of the mixing tube unit 6 , according to Bernoulli's Theorem, becomes low in pressure. Therefore, outside air also enters the mixing tube 61 , and the vapor that passes through the mixing tube 61 becomes a mixture of gas and air.
  • the gas mixture that passes through the mixing tube unit 6 passes through the openings 42 and enters the interior of the burner pot 4 , after which it is mixed a second time to combust on the glow plate 12 . Also, the combustion heat from the gas mixture heats the glow plate 12 to make the glow plate 12 glow red and generate radiant heat.
  • the exhaust passage 111 is the space defined between the bottom of the ceramic plate 1 and the top of the burner frame 11 .
  • the mixing tube 61 is disposed at a side surface of the burner pot 4 to supply gas and air through the side surface of the burner pot 4 .
  • the mixing tube 61 is formed facing the burner pot 4 at the same side surface of the burner pot 4 in a state that a plurality of mixing tubes are fixed to the mixing tube unit 6 . Therefore, although a height of the burner pot 4 is low, sufficient gas and air are introduced to increase combustion efficiency.
  • a plurality of nozzles and mixing tubes must be provided to introduce much air and gas through upper and lower spaces of the slimmed burner pot 4 .
  • the gas discharged from the nozzle 15 and the larger amount of air must be introduced by the momentum of the gas such that a larger amount of air is introduced with the gas.
  • the mixing tube 61 through which the discharged gas passes must not act on airflow resistance against the gas discharged from the nozzle 15 and the air introduced by the gas.
  • FIG. 6 is a cross-sectional view of a nozzle according to the present disclosure.
  • a nozzle 15 is formed in a tube shape as a whole.
  • a fixer 151 fixed to a nozzle holder 16 is provided at a rear portion of the nozzle 15 .
  • a screw thread is formed on an outer surface of the fixer 151 such that the nozzle 15 is rotatively inserted into the nozzle holder 16 .
  • a stopper 152 determining an insertion depth of the nozzle 15 is provided at a front portion of the fixer 151 .
  • a discharger 156 of the nozzle 15 is provided at a front portion of the stopper 152 .
  • a front end of the discharger 156 is gradually reduced in diameter to increase gas pressure.
  • a discharging hole 155 is formed at the front end of the discharger 156 .
  • a diameter W 1 of a body of the discharger 156 is about 5 mm, and a typical diameter of the body of the discharger is about 7 mm.
  • the diameter W 1 is reduced as compared to the typical diameter. This is done in order that the discharger 156 is suitable for a burner pot having a low height.
  • a diameter W 2 of the end of the discharger 156 is about 4 mm.
  • the diameter W 1 of the body of the discharger 156 is greater than the diameter W 2 of the end of the discharger 156 . This is done in order to guide an airflow flowing along an outer surface of the discharger 156 in a front direction. In other words, an outer surface of the end of the discharger 156 is chamfered.
  • gas is discharged at high speed through the discharging hole 155 , and air flows along a discharge flow line of the discharged gas.
  • air contacting the outer surface of the discharge flow line of the discharged gas flows along the gas by a no slip condition.
  • the momentum of the gas flow line is applied to the surrounding air.
  • the air flows along a flow direction of the gas flow line to allow smooth air cohesion to the gas flow line.
  • the diameter W 2 of the end of the discharger 156 is smaller than the diameter W 1 of the body of the discharger 156 such that the air flows from a rear direction to a front direction of the discharger 156 .
  • a flow guider 153 in which a diameter of the discharger 156 is gradually reduced in the end direction is provided between the end and the body of the discharger 156 .
  • the length L is provided similarly to the diameter D in a size of the discharging hole 155 . This is done because a position at which gas flowing from the discharging hole 155 transitions from turbulent flow to laminar flow is detected to promote early transition of the turbulent flow in order to introduce more air and promote mixing of the gas and the air.
  • combustion performance of the mixed gas is improved.
  • FIG. 7 is a graph illustrating the relationship between the ratio of length L/diameter D of a discharging hole and amount of heat in a burner system. Referring to FIG. 7 , in the case where a ratio of length L/diameter D of a discharging hole is 1, the amount of heat is highest. Moreover, the same result can be obtained even if a diameter of a nozzle is changed.
  • FIG. 8 is a graph illustrating the relationship between the ratio of length L/diameter D of a discharging hole and air ratio in a burner system.
  • a ratio of length L/diameter D of a discharging hole 1
  • the air ratio is the largest. What this means is that transition from turbulent flow to laminar flow early occurs to introduce more air.
  • the diameter of the discharging hole is not excessively short because a space between the discharging hole and an inlet of a mixing tube becomes very narrow nor provide a sufficient space for introducing air when the length of the discharging hole is excessively short.
  • the ratio of length L/diameter D of the discharging hole is about 0.9 to 1.1.
  • Methanol is used as the fuel gas.
  • FIG. 9 is a cross-sectional view of a mixing tube in a burner system according to the present disclosure.
  • a mixing tube 61 includes a convergence 62 smoothly guiding gas and air flowing from a nozzle into an inside of a mixing tube, a divergence 63 expanding the convergence 62 to smoothly mix the gas and air passing through the convergence 62 , and a venturi 66 provided between the convergence 62 and the divergence 63 .
  • the convergence 62 may be the nozzle and the divergence 63 may be called a diffuser.
  • a desirable position of the venturi 66 with respect to a total length of the convergence 62 was examined. The following conditions were considered as a precondition in performing the examination.
  • gas having a lower pressure e.g. 180 mmAq
  • gas having a higher pressure e.g. 200 mmAq
  • a configuration of a mixing tube that can be used optimally in two cases mentioned above is proposed because the configuration of the mixing pipe cannot be changed according to operating conditions of the heating cooking appliance.
  • the venturi 66 is disposed at a middle part when the total length of the mixing tube is divided into three equal parts.
  • the venturi 66 is disposed at a third part from an inlet 64 of the mixing tube when the total length of the mixing tube is divided into six equal parts because the discharging hole of the nozzle is adjacent to the inlet 64 of the mixing tube so as to achieve minimization of a burner system. Therefore, the heating cooking appliance can obtain high combustion efficiency without lowering the efficiency when the heating cooking appliance is set to the lower level or the high level.
  • FIG. 10 is a graph illustrating the amount of carbon monoxide (CO) generated from combustion gas according to different positions of a venturi.
  • a case 1 is to disposed at a part adjacent to an inlet 64 of a mixing tube
  • a case 2 is to disposed at a middle part of the mixing tube
  • a case 3 is to disposed at a part adjacent to an outlet 65 of the mixing tube.
  • the carbon monoxide (CO) is the lowest at 18 ppm.
  • the present disclosure is proven in the graph in FIG. 10 .
  • FIG. 11 a cross-sectional view of a nozzle according to another embodiment of the present disclosure.
  • a configuration of a discharger of the nozzle according to another embodiment of the present disclosure is changed, and other parts being the same as in an embodiment, the same symbols are given to the same parts and a concrete explanation thereof is not given.
  • a nozzle 17 includes a round-type flow guider 154 in which an outer surface of a discharger 156 is rounded in order to facilitate smoother flow of air flow through a momentum of gas when gas is discharged from a discharging hole 155 .
  • a diameter of the discharger 156 is not suddenly changed but smoothly rounded along a direction of airflow. Hence, the air following the airflow smoothly flows along a discharging direction of gas.
  • the configurations, which are suitable for reducing a height of the heating cooking appliance, of the nozzle and the mixing tube are the same as described above.
  • the burner system of the present disclosure can be applied to a variety of appliances except the heating cooking appliance. Therefore, many advantages can be obtained in terms of combustion efficiency or the size of an appliance.
  • the present disclosure is not limited thereto, and a single mixing tube and nozzle may be installed. Meanwhile, in case where the plurality of mixing tubes are installed, the burner can generate high temperature heating gas by introducing sufficient gas and air even if a height of an inside of the burner is low, i.e., about 19.5 mm.
  • the air sufficiently flows into the burner system to smoothly mix the air with the gas by making the nozzle and the mixing tube with a predetermined configuration and structure. Therefore, high combustion efficiency can be accomplished.
  • the heating cooking appliance has optimum operating reliability in spite of the slimness of the heating cooking appliance and the burner system.
  • any reference in this specification to “one embodiment,” “an embodiment,” “example embodiment,” etc. means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the disclosure.
  • the appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
US11/925,576 2006-12-20 2007-10-26 Heating cooking appliance and burner system of the same Abandoned US20080153047A1 (en)

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Application Number Priority Date Filing Date Title
KR10-2006-0130612 2006-12-20
KR1020060130612A KR100826711B1 (ko) 2006-12-20 2006-12-20 가열조리기기 및 가열조리기기의 버너시스템

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Cited By (5)

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US20110000477A1 (en) * 2007-12-05 2011-01-06 Kwon Jung-Ju Nozzle assembly and cooking appliance
US20160025336A1 (en) * 2014-07-25 2016-01-28 Jlcc, Inc. Venturi Nozzle for a Gas Combustor
JP2018128199A (ja) * 2017-02-09 2018-08-16 リンナイ株式会社 ガス供給用マニホールド
US10408460B2 (en) * 2015-09-03 2019-09-10 Lg Electronics Inc. Gas cooker and valve assembly for gas cooker
CN111578281A (zh) * 2020-04-20 2020-08-25 宁波方太厨具有限公司 一种用于燃烧器的引射器以及喷嘴组件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4955117B1 (ja) * 2011-03-15 2012-06-20 新日鉄エンジニアリング株式会社 炉頂燃焼式熱風炉
CN107676788B (zh) * 2017-09-29 2024-02-27 南京蕾洛厨具工程有限公司 一种低噪高效燃气炒灶

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