WO2021006831A1 - Ensemble brûleur doté d'un élément venturi pour dispositif de cuisson au gaz - Google Patents

Ensemble brûleur doté d'un élément venturi pour dispositif de cuisson au gaz Download PDF

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Publication number
WO2021006831A1
WO2021006831A1 PCT/TR2019/050558 TR2019050558W WO2021006831A1 WO 2021006831 A1 WO2021006831 A1 WO 2021006831A1 TR 2019050558 W TR2019050558 W TR 2019050558W WO 2021006831 A1 WO2021006831 A1 WO 2021006831A1
Authority
WO
WIPO (PCT)
Prior art keywords
lower body
burner assembly
rim
gas
burner
Prior art date
Application number
PCT/TR2019/050558
Other languages
English (en)
Inventor
Mehmet Baris Gocer
Tuncay CIHAN
Nafiz CELIK
Original Assignee
Femas Metal San. Ve Tic. A.S.
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 Femas Metal San. Ve Tic. A.S. filed Critical Femas Metal San. Ve Tic. A.S.
Priority to EP19937182.4A priority Critical patent/EP3980688A4/fr
Priority to PCT/TR2019/050558 priority patent/WO2021006831A1/fr
Publication of WO2021006831A1 publication Critical patent/WO2021006831A1/fr

Links

Classifications

    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • F23D14/065—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head with injector axis inclined to the burner head axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting
    • 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
    • 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
    • F23D2900/14001—Sealing or support of burner plate borders
    • 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
    • F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings

Definitions

  • the present invention relates to a burner assembly which is used on gas cooker devices and which provides a mixture of gas and air with the help of a venturi element.
  • a burner assembly that supplies flammable gas and air mixture is mounted to the mounting holes on a burner plate on a cooker.
  • the burner assembly has an inlet opening to which an injector is connected.
  • Horizontal or vertical injector types are available depending on whether the injector is placed on the base of the lower body from the bottom or on the peripheral wall from the side.
  • Burner assemblies with horizontal or partially angled injectors installed have a gas inlet located on a lower body and a venturi element placed opposite thereof.
  • the venturi element located within the lower body in order to provide the high air inlet flow required in burner assemblies supplying double-ring combustion (wok type), accelerates the air taken into the lower body by vacuum with the gas supplied from the injector.
  • An effective air-gas mixture is obtained by supplying the accelerated air and gas into the lower body from the venturi element outlet.
  • the strength of the flame is affected by the length of the venturi flume. As the length of the venturi flume becomes longer, a stronger and more homogeneous burn is obtained. Manufacturers are developing alternative burner assemblies to extend the length of the venturi flume. However, these burner assemblies contain quite complex and difficult solutions due to the limitations caused by the standard burner plate and mounting opening dimensions of the cookers.
  • EP2712334 discloses a complex manufacturing method for obtaining a lower body of the burner having a venturi element. Accordingly, a mixer in the form of a narrowing tube providing axial venturi effect with at least one flame distributor is formed to be coupled with a burner head and the container form is obtained in one piece by casting or die casting. This method produces a burner with a difficult and costly manufacturing step that employs a core.
  • the aim of the invention is to increase the length of the venturi element in the burner assembly comprising a venturi element for cooker devices.
  • the invention relates to a lower body having a peripheral wall provided with a gas inlet from the front portion and the top of which is open in such a way to form a rim; a venturi element extending axially within the lower body from a venturi inlet opposite the gas inlet to a rear portion of the peripheral wall, in such a way to mix gas supplied from the gas inlet with air; a burner assembly for a gas cooker comprising an upper part which is adapted to the lower body along the rim from the bottom in a hermetic way and attached to a burner plate from the top.
  • the invention comprises a rim angle that provides inclination towards the rear part at the border where the upper rim joins the upper part and an elongated part where the venturi element is located adjacent to the rear part.
  • the rim angle ensures that the part close to the lower portion remain below the part close to the upper portion along the border where the upper part and lower body are connected to each other.
  • sufficient mounting distance is obtained between the connection elements or other constructional details at the bottom and the above portion, especially the burner plate.
  • This enables the lower body to produce an elongated area for the venturi element with the rim angle. Thanks to the rim angle that allows the venturi element to be obtained in a wider area (compared to what the standard lower body can provide) and in a way that allows an extended section, the ambient air flown into the lower body increases and the combustion efficiency increases.
  • the rim angle is selected between 1 -30. At this angle, the height difference between the upper part and the lower part is sufficient to be equal or greater, for example, between the raised portion of the burner plate and its normal distance. Thus, a space for the elongated portion is provided to the venturi element in such a way to allow increased combustion efficiency.
  • a preferred embodiment of the invention comprises an overlapping lower body flange and an upper part flange that fits thereon by extending on the plane where the upper rim connects to the upper part.
  • the lower body flange and the upper part flange provide the required connection element assembly space for the gas-tight fixation of the corresponding lower body and upper part to each other.
  • the lower body flange is provided at the rear portion.
  • the invention comprises at least one connection element that positions on the lower body flange and that engages in such a way to provide a tight connection to the upper part flange.
  • the connection element can be selected from known connection elements that provide tight connection, such as pins, rivets or the like.
  • the invention comprises a mounting element adapted in the upper part so that the upper part is placed inside a raised portion so that the lower body flange that bends down due to the rim angle does not touch to a burner plate from the bottom.
  • the mounting element for example the mounting plate, connects to the burner plate and helps mounting to the raised portion of the burner plate from the upper section of the upper part.
  • the mounting member circumferentially holds the upper part, placing it in such a way that the lower body flange does not touch the inner edge of the raised portion.
  • the lower body flange which bends down due to the rim angle, prevents the contact of the lower body held by the upper body placed on the burner plate with the mounting element to the burner place, and thus the burner assembly, which has a venturi element with an elongated portion, can be seated on the burner plate easily.
  • the invention comprises a plate form that circumferentially surrounds the upper part of the mounting element.
  • the mounting element in the form of a plate shortens the mounting distance to the burner plate.
  • a compact burner assembly is provided on the cooker.
  • the invention comprises a gas transmission channel provided at the upper section of the upper part and reaching the lower body, as well as an upper part having a flame spreader providing at least one flame ring by passing to the gas transmission channel.
  • the flame spreader allows the air-gas mixture supplied with the venturi element to be distributed in a crown structure in such a way to provide radial flame elements.
  • the invention comprises an injector that is arranged coaxially with the corresponding venturi inlet by positioning at an acute angle to the gas inlet.
  • the length of the venturi element in the lower body is increased.
  • the lower body is in the form of a container produced by metal injection. This structure allows obtaining a lower body suitable for high security conditions at low cost.
  • Figure 1 is a perspective mounting illustration of a representative embodiment of the burner assembly of the invention, with the flame distributor removed.
  • Figure 2 is a lateral view of a representative embodiment of the burner assembly given in Figure 1 , mounted on a burner plate.
  • Figure 3 is a top view of the burner assembly of the invention together with the lower body mounted under the upper part in a representative embodiment.
  • a lower body (10) of the burner assembly of the invention and an upper part (20) thereof attached thereon in the form of a hat is shown with an injector (50) comprising a gas connection mounted isometrically.
  • the lower body (10) is made of metal material, preferably aluminum, and has a form in the form of a hollow container.
  • a peripheral wall (12) of the lower body (10) defines a circular rim (1 1 ) open at its upper part.
  • the peripheral wall (12) forms the lower body (10) together with a base (15).
  • the injector (50) is gas-tightly removably mounted at an acute angle with respect to the horizontal axis into a gas inlet (14) in the form of a hole opened in a front portion (13) of the peripheral wall (12).
  • An air inlet (19) from both sides mutually is formed at the front portion (13) at a distance from the gas inlet (14), in such a way to reach into the lower body (10).
  • the injector (50) directly faces a venturi inlet (32) of a venturi element (30) extending within the lower body (10) coaxially with its extension axis.
  • the upper part (20) seals an upper wall (22) and the lower body (10) from above in a gas- tight manner in such a way that only the passage channel (27) for air or gas is located on the lower part (10).
  • the upper part (20) is joined to the lower body (10) with a flange structure on a rear portion (17) opposite to the front portion (13).
  • a lower body flange (18) is located on the peripheral wall (12) of the lower body (10), close to the upper part (20) at the rear portion (17).
  • the lower body flange (18) is a combined extension of the lower body (10) and is in radial form.
  • An upper part flange (25) extends behind the upper part (20) in such a way that the lower body flange (18) sits thereon.
  • the lower body flange (18) and the upper part flange (25) together delimit a mounting plane.
  • the connection elements (26) consisting of rivets are sequentially nailed to this mounting plane.
  • the connection elements (26) provide a tight fit of the upper part (20) onto the lower body (10) by connecting the lower body flange (18) and the upper part flange (25) in an adjacent manner.
  • the burner assembly is shown laterally, ready-to-operate, mounted on a burner plate (70).
  • the burner plate (70) covers the upper part of a cooker (not shown). It comprises a plate extension (74) on the burner plate (70) and raised portions (72) formed by providing levels from them and surrounding a mounting hole (76) for mounting the burner assembly.
  • the upper part (20) is mounted to the bottom-raised portion (72) with a mounting element having a metal structure (60) adapted to the upper wall (22) and the fixing elements (64) that engage in the holder parts (62) having distributed nail structure thereon.
  • the passage channel (27) extends upwards from the part accessed through a mounting hole (76) and the upper part (40) is positioned in such a way to allow gas passage.
  • the upper part (40) consists of a flame spreader (42) extending radially outward from the passage channel (27) and a planar metal top cover (44) that is removably placed above it.
  • the upper part (40) comprises a double ring flame distributor (42) adapted for a double ring wok burner.
  • a rim angle (a) made with the burner plate plane (70) is provided at a rim border (24) defined circumferentially from a front end (21 ) of the upper part (20) to the upper part flange (25).
  • the rim (1 1 ) extends from the front portion (13) to the rear portion (17) by overlapping the rim border (24) along the peripheral wall (12) in such a way to have the same rim angle (a) so that it has a downward slope.
  • the rim angle (a) is preferably set at 15°. Thanks to the rim angle (a), the lower body flange (18) extends in a planar form on the edge of the rim (1 1 ) and forms a downward bend in relation to the burner plate (70). Thus, an elongated portion (16) is obtained by extending the rear portion (17) below the raised portion (72).
  • FIG. 3 The widening effect of the elongated portion (16) to the lower body (10) is seen in Figure 3 more clearly from the top.
  • An elongated portion (16) is obtained by extending the circular boundaries of the lower body (10) outwards at the rear portion (17).
  • the venturi element (30) sits axially in the lower body (10).
  • the venturi element (30) is located in the elongated portion (16) from its rear portion extending towards a rear wall (36) opposite to the venturi inlet (32).
  • the rear wall (36) extends by dividing the elongated portion (16) in the middle.
  • the lower body flange (18) bends downwards and is mounted under the burner plate (70) without touching the wall surrounding the raised portion (72) of the burner plate (70).
  • the rear portion (17) is pulled radially towards the plate extension (74) to obtain an elongated portion (16).
  • the flammable gas provided by the injector (50) is taken into the lower body (10) together with the air supplied from the air inlets (19).
  • the flammable gas and air directed to the venturi inlet (32) where low pressure is provided therefrom, are accelerated by passing through the narrowing part (34) in the venturi element (30), which is aligned axially against the gas inlet (14) on the lower body (20), and then taken from the rear wall (36) to the lower body (10).
  • the air-gas mixture exiting through the transition channel (27) is transferred to the upper part (40) and divided into parts radially outwardly by the flame distributor (42) and provides the flame crown in case of ignition.

Abstract

L'invention concerne un corps inférieur (10) ayant une paroi périphérique (12) dotée (13) d'une entrée de gaz (14) à partir de la partie avant et dont la partie supérieure est ouverte de manière à former un rebord (11) ; un élément venturi (30) s'étendant axialement à l'intérieur du corps inférieur à partir d'une entrée de venturi (32) opposée à l'entrée de gaz (14) à une partie arrière (17) de la paroi périphérique (12), de manière à mélanger le gaz fourni par l'entrée de gaz (14) avec de l'air ; un ensemble brûleur pour un dispositif de cuisson au gaz comprenant une partie supérieure (40) qui est adapté au corps inférieur le long du bord (11) depuis le fond de manière étanche aux gaz et fixé à une plaque de brûleur (70) à partir de la partie supérieure. L'ensemble brûleur comprend un angle de rebord (a) qui fournit une pente vers la partie arrière (17) au niveau de la bordure où le bord supérieur (11) rejoint la partie supérieure (20) et une partie allongée (38) qui est obtenue par placement adjacent de l'élément venturi (30) sur la partie arrière (17).
PCT/TR2019/050558 2019-07-10 2019-07-10 Ensemble brûleur doté d'un élément venturi pour dispositif de cuisson au gaz WO2021006831A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19937182.4A EP3980688A4 (fr) 2019-07-10 2019-07-10 Ensemble brûleur doté d'un élément venturi pour dispositif de cuisson au gaz
PCT/TR2019/050558 WO2021006831A1 (fr) 2019-07-10 2019-07-10 Ensemble brûleur doté d'un élément venturi pour dispositif de cuisson au gaz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2019/050558 WO2021006831A1 (fr) 2019-07-10 2019-07-10 Ensemble brûleur doté d'un élément venturi pour dispositif de cuisson au gaz

Publications (1)

Publication Number Publication Date
WO2021006831A1 true WO2021006831A1 (fr) 2021-01-14

Family

ID=74115058

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2019/050558 WO2021006831A1 (fr) 2019-07-10 2019-07-10 Ensemble brûleur doté d'un élément venturi pour dispositif de cuisson au gaz

Country Status (2)

Country Link
EP (1) EP3980688A4 (fr)
WO (1) WO2021006831A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11473775B2 (en) * 2019-08-08 2022-10-18 Whirlpool Corporation Cooking appliance having a hob

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2387418A1 (fr) * 1977-04-14 1978-11-10 Sourdillon Sa Perfectionnements aux ensembles bruleurs pour cuisinieres a gaz
US4690636A (en) * 1985-01-30 1987-09-01 Sourdillon-Airindex Flat type gas burner, more particularly for household appliances, adapted for using different gases
WO2008104845A2 (fr) * 2007-02-26 2008-09-04 Indesit Company S.P.A. Système de brûleurs à gaz pour appareils de cuisson d'aliments

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20150017A1 (it) * 2015-04-24 2016-10-24 Ego Elektro Geraetebau Gmbh Bruciatore a gas perfezionato a piu' corone di fiamme.
PL3286498T3 (pl) * 2015-04-24 2019-02-28 Defendi Italy S.R.L. Ulepszony palnik gazowy z wielopierścieniowymi płomieniami głównymi
EP3128236B1 (fr) * 2015-08-03 2020-04-08 Whirlpool EMEA S.p.A Système de brûleurs à gaz, notamment pour une table de cuisson à usage ménager

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2387418A1 (fr) * 1977-04-14 1978-11-10 Sourdillon Sa Perfectionnements aux ensembles bruleurs pour cuisinieres a gaz
US4690636A (en) * 1985-01-30 1987-09-01 Sourdillon-Airindex Flat type gas burner, more particularly for household appliances, adapted for using different gases
WO2008104845A2 (fr) * 2007-02-26 2008-09-04 Indesit Company S.P.A. Système de brûleurs à gaz pour appareils de cuisson d'aliments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3980688A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11473775B2 (en) * 2019-08-08 2022-10-18 Whirlpool Corporation Cooking appliance having a hob

Also Published As

Publication number Publication date
EP3980688A4 (fr) 2023-03-08
EP3980688A1 (fr) 2022-04-13

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