AU2005212730A1 - Double burner for gas cookers, of the type provided with multiple concentric flame crowns - Google Patents
Double burner for gas cookers, of the type provided with multiple concentric flame crowns Download PDFInfo
- Publication number
- AU2005212730A1 AU2005212730A1 AU2005212730A AU2005212730A AU2005212730A1 AU 2005212730 A1 AU2005212730 A1 AU 2005212730A1 AU 2005212730 A AU2005212730 A AU 2005212730A AU 2005212730 A AU2005212730 A AU 2005212730A AU 2005212730 A1 AU2005212730 A1 AU 2005212730A1
- Authority
- AU
- Australia
- Prior art keywords
- burner
- gas
- fact
- flames
- dish
- 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
-
- 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
Description
WO 2005/078342 PCT/IT2005/000018 -1 Description Double burner for gas cookers, of the type provided with multiple concentric flame crowns. The present patent application refers to a double burner for gas cookers, of the type provided with multiple concentric flame crowns. The expression "double burner" is used to indicate a burner with two different gas inlets provided with taps that supply gas to two or more concentric 5 flame crowns separately. The flame crowns can be turned on or off selectively, since gas is supplied by means of two separate independent channels ending into the aforementioned inlets. In spite of being provided with multiple concentric flame crowns, traditional burners are characterized by the presence of one gas inlet with tap, 10 which feeds all channels used to bring the air-gas mixture to the burner head. In view of the above, concentric flame crowns of traditional burners operate simultaneously, meaning they are turned on or off together. On the contrary, with double crowns the user can decide whether to turn all flame crowns on or keep some of the crowns off. 15 The purpose of the present invention is to devise a double burner for gas cookers capable of being converted with simple, inexpensive modifications into a standard burner, that is to say a burner with one tap mounted near one of the inlets, without losing the possibility of supplying gas to all flame crowns of the double burner. 20 In order to modify the existing models of double burners, a connection pipe must be applied outside the body of the burner to provide communication between the mouths of the two gas inlets, so that the gas introduced in one inlet can flow freely through the connection pipe towards the other inlet that, consequently, does not require to be connected to the gas supply and equipped WO 2005/078342 PCT/IT2005/000018 -2 with a tap. The purpose of the present invention is to devise a double burner for gas cookers that can be converted into a standard burner without the introduction of external elements, such as the connection pipe situated outside the body of the 5 burner, by simply removing the internal wall of the body that separates the two gas inlets. An additional purpose of the present invention is to devise a double burner for gas cookers that can be converted as illustrated above, characterised by versatility of use thanks to the replacement of some elements according to 10 different market requirements. It is worth mentioning that pots with flat bottom are normally used in Western countries for cooking, while the use of pots with spherical bottom is popular in Asian countries. In the latter case, to ensure good thermal performance of burners, the 15 flames should be tilted upwards, while in the first case the flames should have a perfectly horizontal direction. In view of the considerations above, the double burner of the invention has been designed in such a way as to be equipped with two types of interchangeable caps, with the first cap being suitable for emission of flames in 20 horizontal direction and the second cap being suitable for emission in vertical direction. A further purpose of the present invention is to devise a double burner for gas cookers characterised by the aforementioned modification and versatility of use and provided with compact volume. 25 The burner of the invention traditionally comprises a tub-shaped body that contains partition walls used to define two different, not-communicating channels, of which one channel is used to supply gas to the external flame crowns and one channel is used to supply gas to the central flame crowns. The bottom of the body traditionally features two different, not- WO 2005/078342 PCT/IT2005/000018 -3 communicating gas inlets with horizontal axes used to supply gas to the aforementioned channels selectively. According to the burner of the invention, the two gas inlets are characterised by the fact that they both reach the centre of the body at a slightly 5 different height. Because of the above, communication between the inlets can be provided, if necessary, by simply drilling a hole with vertical axis from the upper inlet to the lower inlet. According to the preferred embodiment of the present invention, the axes of the two inlets lay on orthogonal vertical planes. 10 A vertical channel branches off from the upper inlet provided with the first gas nozzle designed to introduce gas into the supply channel of central flame crowns, while a diverging pair of ascending channels branches off from the lower inlet provided with nozzles designed to introduce gas into the supply channel of external flame crowns. 15 A Venturi chamber is provided downstream each gas nozzle to favour mixing of gas with primary air. The burner of the invention has three Venturi chambers, one central chamber with vertical axis above the first nozzle and two chambers in opposite position with inclined axis, respectively above the other two aforementioned 20 nozzles. The chambers are situated inside the head of the burner, that is to say the circular dish characterised by the presence of a concentric series of multiple toothed crowns, where caps rest to close the cavities of the toothed crowns, it being known that flames come out from each cavity. 25 Another characteristic of the burner of the invention consists in the fact that it comprises a head formed by a lower dish and an upper dish that perfectly match together to define the opposite pair of Venturi chambers with inclined axis. The third Venturi chamber is situated in central position in the upper dish, WO 2005/078342 PCT/IT2005/000018 -4 which is provided with the concentric series of multiple toothed crowns. For major clarity the description of the double burner of the invention continues with reference to the enclosed drawings, which are intended for purposes of illustration only and not in a limiting sense, whereby:: 5 - Fig. 1 is a cross-section of the burner of the invention with a vertical diametral plane passing through the axis of the first gas inlets; - Fig. 2 is a cross-section of the burner of the invention with a vertical diametral plane passing through the second gas inlet, which in this case is at a higher height than the first inlet; 10 - Fig. 3 is the same cross-section as Fig. 1, except for the fact that it refers to the converted version of the burner, as shown by the communication created between the two gas inlets by means of a hole with vertical axis; - Fig. 4 is the same cross-section as Fig. 2, except for the fact that it refers to the converted version of the burner, as shown by the communication created 15 between the two gas inlets by means of a hole with vertical axis; - Fig. 5 is a top view of the body of the burner of the invention; - Fig. 6 is a top view of the head of the burner without caps; - Fig. 7 is an axonometric view of the burner of the invention, sectioned with two orthogonal vertical planes passing through the axes of the two gas inlets, 20 respectively; - Fig. 8 is the same cross-section as Fig. 1, except for the fact that it refers to the version of burner with caps to favour the creation of flames with vertical inclination. With reference to Figs. 1 and 2, the double burner of the invention 25 traditionally comprises a circular body (1) that contains partition walls used to define two different, not-communication channels, of which channel (E) is used to supply gas to the crowns of external flames (FE) and channel (C) to supply gas to central flames (FC). The bottom of the body (1) traditionally features two different, not- WO 2005/078342 PCT/IT2005/000018 -5 communicating gas inlets (3 and 4) used to supply gas to channels (C and E), selectively and respectively. The two gas inlets (3 and 4) reach the centre of the body (1) at a slightly different height; more precisely, the upper inlet (3) exactly ends in the centre of 5 the body (1) and the lower inlet (4) goes beyond the centre. A vertical channel (3a) branches off from the upper inlet (3) provided with the first gas nozzle (5), that is to say the nozzle used to supply gas into the central channel (C) that feeds the central flame crowns (FC), while a diverging pair of ascending channels (4a) branches off from the lower inlet (4) provided 10 with gas nozzles (6) used to supply gas into the channel (E) that feeds the crowns of external flames (FE). A Venturi chamber (5a) with vertical axis is provided downstream the nozzle (5), and a pair of Venturi chambers (6a) with inclined axis, preferably from 40 to 600, is provided downstream the pair of nozzles (6). 15 Moreover, the burner of the invention comprises a head (T) formed by a lower dish (7) and an upper dish (8) that match perfectly. More precisely, the lower dish (7) has a truncated conical shape and a stepped external border (7a) that acts as support and centring for the upper dish (8) provided with a stepped perimeter collar (8a). 20 The upper dish (8) finds a second centring and support in the flat flange (9a) located at the upper end of the partition walls (9) that project from the centre of the body (1) and separate the channels (C and E). The nozzle (5) is situated in central position inside the partition walls (9), while the nozzles (6) are situated in external opposite position with respect to the 25 walls (9). The two dishes (7 and 8) are provided with semi-conduits (7b and 8b) that form the aforementioned Venturi chambers (6a). A V-shaped deflector wall (10) is situated downstream the chambers (6a) on the lower dish (7) to favour the bifurcation of the air-gas flow coming from the chambers (6a), which is conveyed WO 2005/078342 PCT/IT2005/000018 -6 inside a semi-circular corridor (11) and feeds the concentric crowns of central flames (FC), as shown in Fig. 6, in which the three toothed crowns (12) situated above the upper dish (8) are clearly visible. The corridor (11) is closed by an annular cap (13), on whose external 5 border the concentric crowns of external flames (FE) are formed. The Venturi chamber (5) is situated inside the upper dish (8) and ends a circular space laterally closed by the toothed crown (12) with lower diameter and by a circular cap (14), on whose external border the concentric crown of central flames (FC) is formed. 10 As shown in Fig. 3, the double burner of the invention can be converted into an ordinary burner with three concentric flame crowns by drilling a hole with vertical axis (15) on the body in central position from the lower gas inlet (4) to the coaxial vertical channel (3a) with the nozzle (5). The simple connection of the lower inlet (4) to the gas supply allows to 15 feed the three nozzles - that is to say the central (5) and the lateral (6) nozzles simultaneously, it being evident that in this case the upper gas inlet (3) must be closed to prevent the gas introduced in the lower inlet (4) from exiting the body of the burner by travelling backwards in the upper inlet (3). In order to avoid using external elements, such a closing cap for the inlet 20 (3), the length of the inlet (3) can be suitably reduced, as shown in Fig. 4. Since the body (1) is obtained from die-casting, the reduction in length can be easily and economically obtained by simply moving backwards the pin that is used as "core" for the upper inlet (3). As shown in Fig. 8, to give a vertically inclined direction to the flames, the 25 upper dish (8) and the caps (13 and 14) must be replaced with another dish (80) and two caps (130 and 140) with suitable shape, without having to modify the configuration of the body (1) and the lower dish (7). Finally, it must be noted that the presence of two Venturi chambers (6a) with inclined, rather than vertical, axis allows to reduce the height of the burner.
Claims (1)
- Claims1) Double burner for gas cookers, of the type provided with multiple concentric flame crowns, which comprises:- one head (T) with multiple concentric flame crowns;- one circular body (1) that contains partitions (9) used to define two different, not-communicating channels, of which one channel (E) is used to supply gas to the crowns of external flames (FE) and one channel (C) is used to supply gas to the central flames (FC); - two separate, not-communicating gas inlets (3 and 4) situated on the bottom of the body (1), used to supply gas to the aforementioned channels (C and E) selectively; burner being characterised by the fact that the gas inlets (3 and 4) reach the centre of the body at a slightly different height.2) Burner as defined in the preceding claim, characterised by the fact that the upper inlet (3) exactly ends in the centre of the body (1) and the lower inlet (4) goes beyond the centre.3) Burner as defined in one of the preceding claims, characterised by the fact that the axes of the two inlets (3 e 4) lay on orthogonal vertical planes.4) Burner as defined in one of the preceding claims, characterised by the fact that a vertical channel (3a) branches off from the upper inlet (3), which is provided with the first gas nozzle (5) designed to introduce gas into the central channel (C) that supplies the central flames (FC), while a diverging pair of ascending channels (4a) branches off from the lower inlet, which is provided with nozzles (6) designed to introduce gas into the channel (E) that supplies the external flames (FE); it being provided that a Venturi chamber (5a) with vertical axis is situated downstream the nozzle (5), and a pair of Venturi chambers (6a) is situated downstream the pair of nozzles (6)..5) Burner as defined in the preceding claim, characterised by the fact that the chambers (6a) have an inclined axis.6) Burner as defined in one of the preceding claims, characterised by the fact that the head (T) is composed of a lower dish (7) and an upper dish (8,80) that match perfectly, the lower dish (7) having a truncated conical shape and a stepped external border (7a) that acts as support and centring for the upper dish (8,80), which is provided with a stepped perimeter collar (8a) and finds a second support and centring in the flat flange (9a) situated at the top of the partition walls (9) that protrude from the centre of the body (1) and separate the channels (C and E). 7) Burner as defined in the preceding claim, characterised by the fact that the lower dish (7) and the upper dish (8,80) feature semi-conduits (7b and 8b), respectively, which form the Venturi chambers (6a) .8) Burner as defined in one or more of the preceding claims, characterised by the fact that it comprises a V-shaped deflector wall (10) on the lower dish (7) situated downstream the chambers (6a), which favours the bifurcation of the air- gas flow coming from the chambers (6a), which is conveyed inside a semicircular corridor (11) that feeds the concentric central flames (FC) .9) Burner as defined in one or more of the preceding claims, characterised by the fact that the head (T) comprises an annular cap (13) and a circular cap (14) used to close the corridor (11 ) and the Venturi chamber (5), respectively; it being provided that the dish (8) is provided with toothed crowns (12) shaped in such a way as to give a horizontal direction to the flames, together with the caps (13 and 14).10) Burner as defined in one or more of claims 1 to 8, characterised by the fact that the head (T) comprises an annular cap (130) and a circular cap (140) that close the corridor (11) and the Venturi chamber (5), respectively; it being provided that the dish (80) has three toothed crowns (12) shaped in such a way as to give a vertically inclined direction to the flames, together with the caps (130 and 140). 11) Burner as defined in one or more of the preceding claims, characterised by the fact that it is provided with a hole (15) with vertical axis on the body (1) in central position that starts from the lower gas inlet (4), moves up and ends in the coaxial channel (3a) with the nozzle (5) and additionally characterised by the fact that the upper conduit (3) is blocked in the presence of the hole (15).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000024A ITMC20040024A1 (en) | 2004-02-13 | 2004-02-13 | DOUBLE BURNER FOR GAS COOKERS, OF THE TYPE WITH MULTIPLE CONCENTRIC CROWNS OF FLAMES |
ITMC2004A000024 | 2004-02-13 | ||
PCT/IT2005/000018 WO2005078342A1 (en) | 2004-02-13 | 2005-01-17 | Double burner for gas cookers, of the type provided with multiple concentric flame crowns |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2005212730A1 true AU2005212730A1 (en) | 2005-08-25 |
AU2005212730B2 AU2005212730B2 (en) | 2009-08-20 |
Family
ID=34856901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2005212730A Ceased AU2005212730B2 (en) | 2004-02-13 | 2005-01-17 | Double burner for gas cookers, of the type provided with multiple concentric flame crowns |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1714076B1 (en) |
KR (1) | KR20060126558A (en) |
CN (1) | CN100526715C (en) |
AU (1) | AU2005212730B2 (en) |
BR (1) | BRPI0507358B1 (en) |
CA (1) | CA2555326A1 (en) |
EC (1) | ECSP066769A (en) |
EG (1) | EG24857A (en) |
IT (1) | ITMC20040024A1 (en) |
RU (1) | RU2350842C2 (en) |
UA (1) | UA87831C2 (en) |
WO (1) | WO2005078342A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
ITTO20050685A1 (en) | 2005-09-30 | 2007-04-01 | Indesit Co Spa | COOKTOP WITH GAS BURNER INCLUDING A SEMIPERMEABLE ELEMENT |
ITMI20060535A1 (en) | 2006-03-23 | 2007-09-24 | Enzo Inzaghi | MODULAR BURNER FOR COOKING PLATE |
ITTO20070133A1 (en) | 2007-02-26 | 2008-08-27 | Indesit Co Spa | GAS BURNER SYSTEM FOR FOOD COOKING APPLIANCES |
ITRN20070012A1 (en) | 2007-02-27 | 2008-08-28 | Indesit Company Spa | COOKTOP |
ITRN20070013A1 (en) | 2007-02-27 | 2008-08-28 | Indesit Company Spa | COOKTOP. |
ITMC20070130A1 (en) * | 2007-06-28 | 2008-12-29 | Somi Press Soc Metalli Iniettati Spa | DOUBLE BURNER, OF A PERFECT TYPE, FOR GAS COOKERS WITH MORE FLAME CROWNS. |
ES2434092T3 (en) | 2007-10-23 | 2013-12-13 | Electrolux Home Products Corporation N.V. | Gas burner |
PL2072895T3 (en) | 2007-12-18 | 2014-12-31 | Electrolux Home Products Corp Nv | Gas burner with improved primary air duct |
PL2359061T3 (en) * | 2008-12-12 | 2019-02-28 | Sabaf S.P.A. | Gas burner for domestic cookers |
EP2236921B1 (en) * | 2009-03-18 | 2014-11-05 | Electrolux Home Products Corporation N.V. | Improved gas burner |
CN103062767A (en) * | 2013-01-29 | 2013-04-24 | 浙江安德电器有限公司 | Dual-channel furnace end |
ITVE20130027A1 (en) | 2013-05-29 | 2014-11-30 | Defendi Italy Srl | PERFECTED GAS BURNER. |
CN104713086A (en) * | 2015-03-12 | 2015-06-17 | 广东美的厨房电器制造有限公司 | Burner and gas appliance |
CA2934675A1 (en) | 2015-07-02 | 2017-01-02 | Mabe, S.A. De C.V. | Multi burner ovni |
WO2017097639A1 (en) * | 2015-12-08 | 2017-06-15 | Arcelik Anonim Sirketi | A burner comprising a centering member |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE149662T1 (en) * | 1990-11-12 | 1997-03-15 | De Longhi Spa | BURNER, ESPECIALLY FOR GAS COOKER APPARATUS, WITH A GREAT OPERATIONAL FLEXIBILITY |
SG45044A1 (en) * | 1993-08-06 | 1997-12-19 | Tri Suqare Ind Co Ltd | Gas burner |
IT1294585B1 (en) * | 1997-08-11 | 1999-04-12 | Defendi Srl Off Mec | GAS BURNER WITH SEVERAL FLAME SECTORS. |
IT1311777B1 (en) * | 1999-01-29 | 2002-03-19 | Ohg Defendi Srl | GAS BURNER, PARTICULARLY FOR BUILT-IN HOB. |
FR2804496B1 (en) * | 2000-01-28 | 2002-07-19 | Sourdillon Sa | MULTIPLE FLAME CROWN GAS BURNER |
IT1320580B1 (en) * | 2000-08-02 | 2003-12-10 | Smeg Spa | ULTRA-QUICK BURNER FOR HOB OR FOR A GAS COOKER. |
ES2341707T3 (en) * | 2002-11-12 | 2010-06-25 | Sabaf S.P.A. | GAS BURNER WITH INDEPENDENT POWER SUPPLY OF FLAME CROWNS. |
-
2004
- 2004-02-13 IT IT000024A patent/ITMC20040024A1/en unknown
-
2005
- 2005-01-17 CN CNB2005800045069A patent/CN100526715C/en active Active
- 2005-01-17 WO PCT/IT2005/000018 patent/WO2005078342A1/en not_active Application Discontinuation
- 2005-01-17 RU RU2006129274/06A patent/RU2350842C2/en active
- 2005-01-17 UA UAA200609044A patent/UA87831C2/en unknown
- 2005-01-17 BR BRPI0507358-8A patent/BRPI0507358B1/en active IP Right Grant
- 2005-01-17 CA CA002555326A patent/CA2555326A1/en not_active Abandoned
- 2005-01-17 AU AU2005212730A patent/AU2005212730B2/en not_active Ceased
- 2005-01-17 KR KR1020067016214A patent/KR20060126558A/en not_active Application Discontinuation
- 2005-01-17 EP EP05703266.6A patent/EP1714076B1/en active Active
-
2006
- 2006-08-06 EG EGNA2006000737 patent/EG24857A/en active
- 2006-08-14 EC EC2006006769A patent/ECSP066769A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BRPI0507358A (en) | 2007-07-03 |
ITMC20040024A1 (en) | 2004-05-13 |
BRPI0507358B1 (en) | 2017-10-24 |
EP1714076A1 (en) | 2006-10-25 |
CN100526715C (en) | 2009-08-12 |
AU2005212730B2 (en) | 2009-08-20 |
UA87831C2 (en) | 2009-08-25 |
RU2006129274A (en) | 2008-02-20 |
WO2005078342A1 (en) | 2005-08-25 |
KR20060126558A (en) | 2006-12-07 |
EG24857A (en) | 2010-10-31 |
CN1926382A (en) | 2007-03-07 |
EP1714076B1 (en) | 2016-10-19 |
CA2555326A1 (en) | 2005-08-25 |
ECSP066769A (en) | 2006-11-16 |
RU2350842C2 (en) | 2009-03-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7594812B2 (en) | Double burner for gas cookers, of the type provided with multiple concentric flame crowns | |
AU2005212730A1 (en) | Double burner for gas cookers, of the type provided with multiple concentric flame crowns | |
EP1875132B1 (en) | High-power double burner for gas cookers, with multiple concentric flame crowns | |
US7083123B2 (en) | Internal flame gas burner with high compactness | |
US20100233643A1 (en) | Gas burner | |
US9989248B2 (en) | Premixed stamped inner flames burner with eccentric injection venturi | |
HU227511B1 (en) | Gas burner for cookers | |
US10551057B2 (en) | Gas burner with multiple rings of flames having two parallel venturis, one above the other | |
CN208042138U (en) | A kind of ejection structure of two-chamber direct-injection burner | |
MXPA06009034A (en) | Double burner for gas cookers, of the type provided with multiple concentric flame crowns | |
KR200441087Y1 (en) | High thermal power gas burner | |
CN100425908C (en) | Energy-saving burner with gas distribution equalization | |
CN210004394U (en) | kinds of gas premixing burner | |
CN217685007U (en) | Gas distribution seat for combustor, combustor and gas stove | |
KR102621868B1 (en) | Gas burner | |
CN112443841B (en) | Upper air inlet burner | |
CN217684982U (en) | Combustor and gas stove | |
CN208998075U (en) | A kind of burner of cooker burner | |
CN220287432U (en) | Combined burner with upper and lower air inlets | |
WO2001088437A1 (en) | Combustion device of gas burner for cooking | |
KR102586813B1 (en) | Gas burner | |
CN211739072U (en) | A kind of burner | |
KR200328128Y1 (en) | Gas burner | |
CN114060804A (en) | Combustor and gas stove | |
CN110748886A (en) | A kind of burner |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FGA | Letters patent sealed or granted (standard patent) | ||
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |