EP2174062A2 - Improved double burner for gas hot plates with multiple flame crowns - Google Patents
Improved double burner for gas hot plates with multiple flame crownsInfo
- Publication number
- EP2174062A2 EP2174062A2 EP08774156A EP08774156A EP2174062A2 EP 2174062 A2 EP2174062 A2 EP 2174062A2 EP 08774156 A EP08774156 A EP 08774156A EP 08774156 A EP08774156 A EP 08774156A EP 2174062 A2 EP2174062 A2 EP 2174062A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- nozzles
- flame crowns
- deflector
- venturi mixing
- 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.)
- Granted
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
- 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
- F23D14/64—Mixing devices; Mixing tubes with injectors
-
- 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
- F23D14/70—Baffles or like flow-disturbing devices
-
- 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
- F23D2900/00003—Fuel or fuel-air mixtures flow distribution devices upstream of the outlet
-
- 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
-
- 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
Definitions
- the present patent application for industrial invention relates to a double burner for gas hot plates that is an improved embodiment of a previous model patented by the same applicant under application no. MC2005 A 000036 registered on 29.04.205, to which integral reference is made herein.
- MC2005 A 000036 registered on 29.04.205
- - figure 1 is a sectional view of the burner with a diametral vertical plane passing through the axis of the first gas inlet conduit designed to feed the external flame crowns;
- - figure 2 is a sectional view of the burner with a diametral vertical plane passing through the axis of the second gas inlet conduit, which is positioned at a higher height than the first inlet conduit.
- FIG. 3 is a top view of the head of the burner without caps.
- the double burner of the invention comprises a circular tub-shaped body (1 ), which houses a raised central cross-piece (2) with housings for multiple gas injection nozzles.
- Two different, non-communicating gas inlet conduits (3 and 4) are obtained under the body (1 ), each of them being designed to selectively and respectively feed the nozzle associated with the central flame crown and the group of nozzles associated with the external flame crowns.
- the two gas inlet conduits (3 and 4) reach the centre of the body (1 ) at slightly different heights; more precisely, the upper inlet conduit (3) exactly ends in the centre of the body (1 ), while the lower inlet conduit (4) goes beyond the said centre, as shown in Fig. 1.
- a vertical channel (3a) branches upwards from the upper inlet conduit (3), on which the first gas injection nozzle (5) designed to introduce gas in the Venturi mixing chamber that supplies the central flame crown (FC) is mounted, while four ascending diverging channels (4a) branch from the lower inlet conduit (4), on which corresponding injection nozzles (6) designed to introduce gas in the mixing chambers that feed the external flame crowns (FE) are mounted.
- a radial Venturi mixing chamber (5a) with vertical axis is situated downstream the nozzle (5), while four axial Venturi mixing chambers (6a) with inclined axis, preferably from 40° to 60°, are situated downstream the four nozzles (6).
- the burner of the invention comprises a head (T) formed of a lower dish (7) and an upper dish (8) shaped in such a way as to match perfectly.
- the lower dish (7) has a truncated-conical profile and a stepped external border (7a) that supports and centres the upper dish (8) with a stepped perimeter collar (8a).
- the upper dish (8) is also supported and centred in the central flange (9) of the lower dish (7).
- the two dishes (7 and 8) are respectively provided with semi-conduits (7b and 8b) that form the said axial Venturi mixing chambers (6a); a V-shaped deflector partition (10) obtained on the lower dish (7) is situated immediately downstream the chambers (6a), being designed to favour bifurcation of the ascending air-gas mixture flow from the chambers (6a), conveying it inside the corridor (1 1 ) that feeds the external concentric flame crowns (FE), as shown in Fig. 3, which also illustrates the three toothed crowns (12) obtained above the upper dish (8).
- the annular corridor (1 1 ) is formed of four identical consecutive communicating corridor sections, each of them being bordered by a pair of deflector partitions (10).
- the corridor (1 1 ) is closed by an annular cap (13), on whose internal and external border the said external concentric flame crowns (FE) are formed.
- the Venturi mixing chamber (5) is completely housed in the upper dish (8) and ends in a circular compartment closed laterally by the toothed crown (12) with lower diameter and on top by a circular cap (14), on whose external border the central concentric flame crown (FC) is formed. It was noted that during the use of the said burner the external flames (FE) situated near the outlet of the axial Venturi mixing chambers (6a) are longer than the other flames and have yellow-coloured tips that indicate different combustion.
- the overpressure increases the speed of the mixing to the holes from which the external flames (FE) emanate.
- the purpose of the present invention is to remedy the aforementioned inconvenience in order to obtain a double burner with multiple flame crowns with the following advantages: high power, compact height and uniform external flames (FE) in terms of length and colour.
- the model of improved burner of the invention is characterised in that it comprises a deflector partition with suitable profile situated in front of the outlet of the axial Venturi mixing chambers with inclined axis, which forces the mixture to deflect and extend its travel before it reaches the outflow holes of the external flames (FE) situated in the area in front of the outlet.
- a deflector partition with suitable profile situated in front of the outlet of the axial Venturi mixing chambers with inclined axis, which forces the mixture to deflect and extend its travel before it reaches the outflow holes of the external flames (FE) situated in the area in front of the outlet.
- the mixture is reduced by the desired value so that all external flames (FE) have the same length and the same colour.
- FIGS 4, 5 and 6 illustrate the head (T) of the burner, and not the - A -
- - fig. 4 is a perspective top view of the improved burner without the top caps
- - fig. 5 is a sectional view of the improved burner with a diametral plane with caps;
- - fig. 6 is a top view of the improved burner without top caps.
- a deflector partition (100) is provided in front of the outlet of the Venturi mixing chambers (6a), which forces the mixture to deflect laterally and downwards to reach the openings (101 ) that give access to the two corridors (1 1 ) that branch on the two sides of the said deflector partition (100).
- the deflector partition (100) is obtained in one moulded piece with the upper dish (8) of the head (T), where a pair of openings (101 ) astride each partition (100) is obtained.
- Circular corridors (1 1 ) are obtained on the upper side of the dish (8) and partially house an annular cap (102) provided with a series of holes (103) from which the external flames (FE) emanate.
- the annular cap (102) has a transversal sunken mushroom-shaped section, with head situated above the corridors (1 1 ) and provided with the said series of holes (103).
- the mixture that comes out of the openings (101 ) is conveyed inside the corridors (1 1 ) and travels along the groove (102a) sunken under the annular cap (102), from which it comes out through the series of holes (103).
- a deflector partition (100) is positioned between the outlet and the holes (103), which forces the mixture to deflect laterally in the two directions and downwards until it passes through the opposite pair of openings (101 ) that give access to the corridors (1 1 ).
- the mixture flow coming out of the openings (101 ) is divided into two flows (F1 and F2) with opposite directions.
- the first flow (F1 ) passes over the partition (100), inverting the direction to reach and feed the holes (103) situated under the partition (100) before the outlet of the Venturi mixing chambers (6a).
- the second flow (F2) goes towards the holes (103) situated at furthest distance from the deflector partition (100).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000130A ITMC20070130A1 (en) | 2007-06-28 | 2007-06-28 | DOUBLE BURNER, OF A PERFECT TYPE, FOR GAS COOKERS WITH MORE FLAME CROWNS. |
PCT/EP2008/057822 WO2009000754A2 (en) | 2007-06-28 | 2008-06-19 | Improved double burner for gas hot plates with multiple flame crowns |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2174062A2 true EP2174062A2 (en) | 2010-04-14 |
EP2174062B1 EP2174062B1 (en) | 2017-08-30 |
Family
ID=39831635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08774156.7A Active EP2174062B1 (en) | 2007-06-28 | 2008-06-19 | Improved double burner for gas hot plates with multiple flame crowns |
Country Status (14)
Country | Link |
---|---|
US (1) | US20100163013A1 (en) |
EP (1) | EP2174062B1 (en) |
CN (1) | CN101715531B (en) |
AR (1) | AR067113A1 (en) |
BR (1) | BRPI0813221A2 (en) |
CL (1) | CL2008001828A1 (en) |
EC (1) | ECSP109876A (en) |
EG (1) | EG25301A (en) |
IT (1) | ITMC20070130A1 (en) |
MX (1) | MX2009014155A (en) |
RU (1) | RU2461774C2 (en) |
UA (1) | UA97399C2 (en) |
WO (1) | WO2009000754A2 (en) |
ZA (1) | ZA200908970B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2236921T3 (en) * | 2009-03-18 | 2015-04-30 | Electrolux Home Products Corp Nv | Improved gas burner |
CN101995020B (en) * | 2009-08-27 | 2014-07-23 | 博西华电器(江苏)有限公司 | Combustor fire cover for gas stove and combustor of gas stove thereby |
PL2655966T3 (en) * | 2010-12-22 | 2018-07-31 | Sabaf S.P.A. | Gas burner |
CN202494111U (en) * | 2012-02-16 | 2012-10-17 | 梁锦洪 | Burning device for gas stove |
US9541294B2 (en) * | 2013-08-06 | 2017-01-10 | Whirlpool Corporation | Inner swirling flame gas burner |
ITUA20163579A1 (en) * | 2015-05-19 | 2017-11-18 | Somipress Soc Metalli Iniettati S R L | DOUBLE CROWN GAS BURNER. |
US10436451B2 (en) | 2016-10-06 | 2019-10-08 | Whirlpool Corporation | Cap to change inner flame burner to vertical flame |
US11940148B2 (en) | 2021-10-28 | 2024-03-26 | Electrolux Appliances Aktiebolag | Multi injection dual ring gas burner for domestic gas cooking units |
CN114992631B (en) * | 2022-05-25 | 2023-04-11 | 河南凯盛石油设备有限公司 | Double-channel decomposing furnace burner |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1281854B1 (en) * | 1995-03-17 | 1998-03-03 | Over All S R L | GAS BURNERS FOR GLASS-CERAMIC HOB AND HEATING |
IT1294585B1 (en) * | 1997-08-11 | 1999-04-12 | Defendi Srl Off Mec | GAS BURNER WITH SEVERAL FLAME SECTORS. |
RU2295090C2 (en) * | 2002-11-12 | 2007-03-10 | Сабаф С.П.А. | Gas burner at separate supply of flame coronas |
KR100786603B1 (en) * | 2002-11-28 | 2007-12-21 | 가부시끼가이샤 르네사스 테크놀로지 | Memory module, memory system, and information device |
JP3860568B2 (en) * | 2003-11-28 | 2006-12-20 | リンナイ株式会社 | Parent and child burner |
ITMC20040024A1 (en) * | 2004-02-13 | 2004-05-13 | So Mi Press Societa Metalli In | DOUBLE BURNER FOR GAS COOKERS, OF THE TYPE WITH MULTIPLE CONCENTRIC CROWNS OF FLAMES |
ITVE20040031A1 (en) * | 2004-07-09 | 2004-10-09 | Ohg Defendi S R L | MULTI-FLAME SECTOR BURNER. |
ITMC20050036A1 (en) * | 2005-04-29 | 2006-10-30 | So M I Press Societa Metalli Iniettati Spa | DOUBLE BURNER FOR GAS COOKERS, WITH MULTIPLE CONCENTRIC FLAME CHAINS, HIGH POWER. |
FR2889293B1 (en) * | 2005-07-29 | 2009-12-18 | Burner Systems Int Bsi | MULTI-CROWN GAS BURNER WITH CONCENTRIC FLAME |
US7661954B2 (en) * | 2005-09-13 | 2010-02-16 | Uwe Harneit | Gas burner |
-
2007
- 2007-06-28 IT IT000130A patent/ITMC20070130A1/en unknown
-
2008
- 2008-06-19 EP EP08774156.7A patent/EP2174062B1/en active Active
- 2008-06-19 RU RU2010102725/06A patent/RU2461774C2/en active
- 2008-06-19 CL CL200801828A patent/CL2008001828A1/en unknown
- 2008-06-19 CN CN2008800218254A patent/CN101715531B/en not_active Expired - Fee Related
- 2008-06-19 UA UAA200913601A patent/UA97399C2/en unknown
- 2008-06-19 US US12/452,256 patent/US20100163013A1/en not_active Abandoned
- 2008-06-19 MX MX2009014155A patent/MX2009014155A/en active IP Right Grant
- 2008-06-19 WO PCT/EP2008/057822 patent/WO2009000754A2/en active Application Filing
- 2008-06-19 BR BRPI0813221-6A2A patent/BRPI0813221A2/en not_active IP Right Cessation
- 2008-06-20 AR ARP080102669A patent/AR067113A1/en not_active Application Discontinuation
-
2009
- 2009-12-17 ZA ZA200908970A patent/ZA200908970B/en unknown
- 2009-12-22 EG EG2009121868A patent/EG25301A/en active
-
2010
- 2010-01-15 EC EC2010009876A patent/ECSP109876A/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009000754A2 * |
Also Published As
Publication number | Publication date |
---|---|
AR067113A1 (en) | 2009-09-30 |
WO2009000754A3 (en) | 2009-11-26 |
RU2010102725A (en) | 2011-08-10 |
EP2174062B1 (en) | 2017-08-30 |
ECSP109876A (en) | 2010-02-26 |
CN101715531A (en) | 2010-05-26 |
EG25301A (en) | 2011-12-07 |
MX2009014155A (en) | 2010-03-01 |
UA97399C2 (en) | 2012-02-10 |
BRPI0813221A2 (en) | 2014-12-23 |
US20100163013A1 (en) | 2010-07-01 |
ZA200908970B (en) | 2010-08-25 |
RU2461774C2 (en) | 2012-09-20 |
WO2009000754A2 (en) | 2008-12-31 |
CN101715531B (en) | 2011-07-06 |
ITMC20070130A1 (en) | 2008-12-29 |
CL2008001828A1 (en) | 2008-10-17 |
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