CA2475291A1 - Receptacle for internal flame gas burner and hob comprising a receptacle of this kind and burner of this kind - Google Patents
Receptacle for internal flame gas burner and hob comprising a receptacle of this kind and burner of this kind Download PDFInfo
- Publication number
- CA2475291A1 CA2475291A1 CA002475291A CA2475291A CA2475291A1 CA 2475291 A1 CA2475291 A1 CA 2475291A1 CA 002475291 A CA002475291 A CA 002475291A CA 2475291 A CA2475291 A CA 2475291A CA 2475291 A1 CA2475291 A1 CA 2475291A1
- Authority
- CA
- Canada
- Prior art keywords
- receptacle
- burner
- cover
- hob
- cup
- 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
Links
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
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
An internal flame gas burner receptacle comprises at least one sealed cup having at least one gas inlet orifice, at least one cover provided with a central flame exit opening and conformed to cover the cup, and a calibrated space between the periphery of the cover and the rim of the cup.
Description
RECEPTACLE FOR INTERNAL FLAME GAS BURNER AND HOB COMPRISING A
RECEPTACLE OF THIS KIND AND A BURNER OF THIS KIND
BACKGROUND OF THE INVENTION
Field of the invention The present invention relates to a receptacle far an internal flame gas burner and a hob comprising a receptacle of this kind and a burner of this kind.
Description of the prior art Known in the art are internal flame gas burners, that is to say gas burners having a central hollow portion usually called the "chimney" from which exit flames for heating vessels such as saucepans.
These burners, which are different from the standard peripheral flame gas burners equipping conventional cookers, are generally appreciated for their improved energy performance: for the same quantity of gas supplied, the contents of a vessel are heated much faster.
Without this list claiming to be exhaustive, examples of internal flame gas burners may be found in the following patents: FR 01 15643 (A.E.M.), FR 02 (Gaz de France) and JP 10 19425 (RINNAf KK).
One particular object of the present invention is to provide means for further improving the energy performance of internal flame gas burners.
SUMMARY OF THE INVENTION
The subject of the invention is achieved with an internal flame gas burner receptacle comprising:
a) at least one sealed cup having at least one gas inlet orifice, b) at least one cover provided with a central flame exit opening and conformed to cover the cup, and c) means for maintaining a calibrated space between the periphery of the cover and the rim of the cup.
This receptacle in accordance with the invention encloses an internal flame gas burner in a volume to which the entry of gas is totally controlled.
In particular the entry of air may be calibrated to optimize the process of combustion taking place within the burner and thereby optimize the performance of the burner.
According to other features of the receptacle:
- the cover has a flame deflector shape;
RECEPTACLE OF THIS KIND AND A BURNER OF THIS KIND
BACKGROUND OF THE INVENTION
Field of the invention The present invention relates to a receptacle far an internal flame gas burner and a hob comprising a receptacle of this kind and a burner of this kind.
Description of the prior art Known in the art are internal flame gas burners, that is to say gas burners having a central hollow portion usually called the "chimney" from which exit flames for heating vessels such as saucepans.
These burners, which are different from the standard peripheral flame gas burners equipping conventional cookers, are generally appreciated for their improved energy performance: for the same quantity of gas supplied, the contents of a vessel are heated much faster.
Without this list claiming to be exhaustive, examples of internal flame gas burners may be found in the following patents: FR 01 15643 (A.E.M.), FR 02 (Gaz de France) and JP 10 19425 (RINNAf KK).
One particular object of the present invention is to provide means for further improving the energy performance of internal flame gas burners.
SUMMARY OF THE INVENTION
The subject of the invention is achieved with an internal flame gas burner receptacle comprising:
a) at least one sealed cup having at least one gas inlet orifice, b) at least one cover provided with a central flame exit opening and conformed to cover the cup, and c) means for maintaining a calibrated space between the periphery of the cover and the rim of the cup.
This receptacle in accordance with the invention encloses an internal flame gas burner in a volume to which the entry of gas is totally controlled.
In particular the entry of air may be calibrated to optimize the process of combustion taking place within the burner and thereby optimize the performance of the burner.
According to other features of the receptacle:
- the cover has a flame deflector shape;
- the cover has a frustoconical region with the opening at the bottom;
- the cover comprises vessel support lugs.
The present invention also provides a top plate comprising at least one receptacle as defined hereinabove and a plate joined and sealed to the rim of the cup.
According to other features of the top plate, the opening is under the plate.
The present invention further provides a hob comprising a top plate as defined hereinabove and at least one internal flame burner disposed in the receptacle whose injector communicates with the gas inlet orifice and whose chimney is disposed in line with the opening.
According to other features of the hob:
- the gas burner is of the compact type;
- the burner comprises an aspiration tube situated substantially in the plane in which the flame outlet orifices of said burner discharge;
- it comprises a plurality of receptacles and burners of different sizes.
Other features and advantages of the present invention will become apparent in the light of the following description and on examining the appended drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an exploded perspective view of a hob according to the invention.
Figure 2 is a perspective view of a top plate forming part of the figure 1 hob.
Figure 3 is an exploded perspective view of one of the burners of the figure 1 hob.
Figure 4 is a perspective view of one of the covers forming part of the figure 1 hob.
Figure 5 is a view in section in the plane P in figure 1 of a portion of the hob from that figure.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Refer now to figure 1, which represents a hob 1 according to the invention.
The hob 1 comprises a top plate 3 in turn comprising a plurality of receptacles 5a to 5e connected to each other by a plate 4, each receptacle comprising a cup 7a to 7c and a cover 9a to 9e.
Within each of the cups 7a to 7c is an internal flame burner 11; only one of the burners may be seen in figure 1, in a position withdrawn from the hob, as may its associated cup 7b Refer now to figure 2, which shows that the top plate 3 may be a metal plate 4 pressed to form a plurality of cups 7a to 7e each preferably having the shape of a slice of cake.
Alternately, the cups may be fabricated independently of each other and attached, for example welded, to a metal plate 4 joining them together.
Each cup 7a to 7e has a gas inlet orifice 14a to 14c.
Refer next to figure 3, which is an exploded perspective view of an internal flame burner 11 that may be used with the top plate 3 of the invention.
This burner conforms to the teaching of patent application FR 02 16041, but it must be clearly understood that this example is in no way limiting on the invention.
Briefly, this burner 11 comprises a gas injector 15, an aspiration tube 17, a pot19,ahdacap21.
The function of the aspiration tube 17, also known as a "Venturi", is to draw in primary combustion air, this induction or aspiration of air resulting from a pressure drop in the tube 17 caused by the gas leaving the injector 15 and being accompanied by turbulence whereby the primary air is mixed with the gas.
The cap 21 caps the pot 19 and, with the pot 19, delimits an annular chamber 23 whose internal edge 25 includes flame outlet orifices 27.
The air and the gas coming from the tube 17 finish up by mixing intimately in this chamber 23, the resulting combustible mixture being divided homogeneously and distributed to the flame outlet orifices 27, where it ignites and burns in secondary air from the surroundings.
The tube 17 extends along an axis that is substantially in the plane onto which the orifices 27 discharge and preferably has a length at most twice the radius of the internal rim 25 of this chamber.
Because of this length to radius ratio, a burner of this kind is small in the horizontal direction and may therefore be described as "compact".
A distribution member 29 in the shape of a circular arc is disposed between the outlet of the tube 17 and those of the orifices 27 that face it.
Refer next to figure 4, which represents a cover 9 that may be used with the top plate of the invention.
As may be seen in this figure, this cover 9 comprises a central flame exit opening 31 which is at the bottom of a frustoconical portion 33 around which are distributed several vessel support lugs 35a to 35d, for example four such lugs.
The general shape of the cover 9 corresponds to that of the cups 7a to 7d (see figure 2).
All of the members just described may be fabricated from stainless steel or a similar alloy.
Refer next to figure 5, which shows how a cup 7, an internal flame burner 11 and a cover 9 are arranged relative to each other in an operational situation.
The burner 11 represented in this figure has a slightly different shape from that which has just been described; the invention is not limited to any particular design of internal flame burner.
Figure 5 shows that the aspiration tube 17 is disposed in line with the gas injector 15, which is in turn disposed in the gas inlet orifice 14 of the cup 7.
The burner 11 is simply placed on the bottom of the cup 7.
A space E is formed between the periphery of the cover 9 and the plate 4, enabling air A to circulate from the exterior toward the interior of the cup 7.
The space E is obtained by any appropriate means, such as spacers (not shown) disposed between the cover 9 and the plate 4.
The chimney 37 of the burner 11, that is to say the region of the burner onto which the flame outlet orifices 27 discharge, is disposed in line with the central opening 31 of the cover 9.
The central opening 31 is under the plate 4 of the top plate 3.
The rim 39 of the central opening is curved on itself so that it has a flame deflector shape.
The mode of operation and the advantages of the invention follow directly from the foregoing description.
Refer to figure 5 in particular.
The cover 9 and the cup 7 form a volume that is virtually closed on the inside and into which the incoming flow of air A may be totally controlled.
In particular the space E may be calibrated so that the flow of air A
optimizes the energy efficiency of the burner 11, which utilizes a portion A1 of this air as primary air (mixed directly with the gas arriving via the injector 15) and another portion A2 of this air as secondary air (incorporated into the combustion in the area of the chimney 37).
In this way the air A may be metered to reduce unburned particles in particular.
The frustoconicai shape of the cover 9 lowers the bottom of the vessel to be heated relative to the plate 4, which reduces vertical bulk and is particularly beneficial from an esthetic point of view.
In particular, the burners may be practically invisible from the outside, which yields a very restrained design.
- the cover comprises vessel support lugs.
The present invention also provides a top plate comprising at least one receptacle as defined hereinabove and a plate joined and sealed to the rim of the cup.
According to other features of the top plate, the opening is under the plate.
The present invention further provides a hob comprising a top plate as defined hereinabove and at least one internal flame burner disposed in the receptacle whose injector communicates with the gas inlet orifice and whose chimney is disposed in line with the opening.
According to other features of the hob:
- the gas burner is of the compact type;
- the burner comprises an aspiration tube situated substantially in the plane in which the flame outlet orifices of said burner discharge;
- it comprises a plurality of receptacles and burners of different sizes.
Other features and advantages of the present invention will become apparent in the light of the following description and on examining the appended drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an exploded perspective view of a hob according to the invention.
Figure 2 is a perspective view of a top plate forming part of the figure 1 hob.
Figure 3 is an exploded perspective view of one of the burners of the figure 1 hob.
Figure 4 is a perspective view of one of the covers forming part of the figure 1 hob.
Figure 5 is a view in section in the plane P in figure 1 of a portion of the hob from that figure.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Refer now to figure 1, which represents a hob 1 according to the invention.
The hob 1 comprises a top plate 3 in turn comprising a plurality of receptacles 5a to 5e connected to each other by a plate 4, each receptacle comprising a cup 7a to 7c and a cover 9a to 9e.
Within each of the cups 7a to 7c is an internal flame burner 11; only one of the burners may be seen in figure 1, in a position withdrawn from the hob, as may its associated cup 7b Refer now to figure 2, which shows that the top plate 3 may be a metal plate 4 pressed to form a plurality of cups 7a to 7e each preferably having the shape of a slice of cake.
Alternately, the cups may be fabricated independently of each other and attached, for example welded, to a metal plate 4 joining them together.
Each cup 7a to 7e has a gas inlet orifice 14a to 14c.
Refer next to figure 3, which is an exploded perspective view of an internal flame burner 11 that may be used with the top plate 3 of the invention.
This burner conforms to the teaching of patent application FR 02 16041, but it must be clearly understood that this example is in no way limiting on the invention.
Briefly, this burner 11 comprises a gas injector 15, an aspiration tube 17, a pot19,ahdacap21.
The function of the aspiration tube 17, also known as a "Venturi", is to draw in primary combustion air, this induction or aspiration of air resulting from a pressure drop in the tube 17 caused by the gas leaving the injector 15 and being accompanied by turbulence whereby the primary air is mixed with the gas.
The cap 21 caps the pot 19 and, with the pot 19, delimits an annular chamber 23 whose internal edge 25 includes flame outlet orifices 27.
The air and the gas coming from the tube 17 finish up by mixing intimately in this chamber 23, the resulting combustible mixture being divided homogeneously and distributed to the flame outlet orifices 27, where it ignites and burns in secondary air from the surroundings.
The tube 17 extends along an axis that is substantially in the plane onto which the orifices 27 discharge and preferably has a length at most twice the radius of the internal rim 25 of this chamber.
Because of this length to radius ratio, a burner of this kind is small in the horizontal direction and may therefore be described as "compact".
A distribution member 29 in the shape of a circular arc is disposed between the outlet of the tube 17 and those of the orifices 27 that face it.
Refer next to figure 4, which represents a cover 9 that may be used with the top plate of the invention.
As may be seen in this figure, this cover 9 comprises a central flame exit opening 31 which is at the bottom of a frustoconical portion 33 around which are distributed several vessel support lugs 35a to 35d, for example four such lugs.
The general shape of the cover 9 corresponds to that of the cups 7a to 7d (see figure 2).
All of the members just described may be fabricated from stainless steel or a similar alloy.
Refer next to figure 5, which shows how a cup 7, an internal flame burner 11 and a cover 9 are arranged relative to each other in an operational situation.
The burner 11 represented in this figure has a slightly different shape from that which has just been described; the invention is not limited to any particular design of internal flame burner.
Figure 5 shows that the aspiration tube 17 is disposed in line with the gas injector 15, which is in turn disposed in the gas inlet orifice 14 of the cup 7.
The burner 11 is simply placed on the bottom of the cup 7.
A space E is formed between the periphery of the cover 9 and the plate 4, enabling air A to circulate from the exterior toward the interior of the cup 7.
The space E is obtained by any appropriate means, such as spacers (not shown) disposed between the cover 9 and the plate 4.
The chimney 37 of the burner 11, that is to say the region of the burner onto which the flame outlet orifices 27 discharge, is disposed in line with the central opening 31 of the cover 9.
The central opening 31 is under the plate 4 of the top plate 3.
The rim 39 of the central opening is curved on itself so that it has a flame deflector shape.
The mode of operation and the advantages of the invention follow directly from the foregoing description.
Refer to figure 5 in particular.
The cover 9 and the cup 7 form a volume that is virtually closed on the inside and into which the incoming flow of air A may be totally controlled.
In particular the space E may be calibrated so that the flow of air A
optimizes the energy efficiency of the burner 11, which utilizes a portion A1 of this air as primary air (mixed directly with the gas arriving via the injector 15) and another portion A2 of this air as secondary air (incorporated into the combustion in the area of the chimney 37).
In this way the air A may be metered to reduce unburned particles in particular.
The frustoconicai shape of the cover 9 lowers the bottom of the vessel to be heated relative to the plate 4, which reduces vertical bulk and is particularly beneficial from an esthetic point of view.
In particular, the burners may be practically invisible from the outside, which yields a very restrained design.
5 An ultra flat hob may be obtained by using an internal flame burner like that represented in the figures, that is to say of the type having an aspiration tube 17 substantially in the plane in which the flame outlet orifices 27 discharge.
The curved shape of the rim 39 of the opening 31 encourages the distribution of the flames under the vessel to be heated: thanks to this shape, the flames are first directed toward the center of the chimney 37 and then curved upward and toward the exterior of the burner.
The covers 9a to 9e further protect the burners and the cups from soiling by the contents of the vessels to be heated.
Taking all of the air necessary for combustion from above the cooking surface conforms to the applicable standards.
Sealing the connection of the cups 7a to 7e to the plate 4 prevents any accidental confinement of gas under the cooking surface.
Of course, the present invention is not limited to the embodiment described and shown.
For example, the hob of the invention could be limited to a top plate comprising only one cup and one burner.
Likewise the hob of the invention could comprise a "collective" cup andlor cover, that is to say one receiving or covering a respective plurality of burners.
The curved shape of the rim 39 of the opening 31 encourages the distribution of the flames under the vessel to be heated: thanks to this shape, the flames are first directed toward the center of the chimney 37 and then curved upward and toward the exterior of the burner.
The covers 9a to 9e further protect the burners and the cups from soiling by the contents of the vessels to be heated.
Taking all of the air necessary for combustion from above the cooking surface conforms to the applicable standards.
Sealing the connection of the cups 7a to 7e to the plate 4 prevents any accidental confinement of gas under the cooking surface.
Of course, the present invention is not limited to the embodiment described and shown.
For example, the hob of the invention could be limited to a top plate comprising only one cup and one burner.
Likewise the hob of the invention could comprise a "collective" cup andlor cover, that is to say one receiving or covering a respective plurality of burners.
Claims (10)
1. An internal flame gas burner receptacle comprising:
a) at least one sealed cup having at least one gas inlet orifice, b) at least one cover provided with a central flame exit opening and conformed to cover said cup, and c) means for maintaining a calibrated space between the periphery of said cover and the rim of said cup.
a) at least one sealed cup having at least one gas inlet orifice, b) at least one cover provided with a central flame exit opening and conformed to cover said cup, and c) means for maintaining a calibrated space between the periphery of said cover and the rim of said cup.
2. The receptacle claimed in claim 1 wherein said cover has a flame deflector shape.
3. The receptacle claimed in claim 1 wherein said cover has a frustoconical region with said opening at the bottom.
4. The receptacle claimed in claim 1 wherein said cover comprises vessel support lugs.
5. A top plate comprising at feast one receptacle as claimed in any preceding claim and a plate joined and sealed to the rim of said cup.
6. The top plate claimed in claim 5 wherein said opening is under said plate.
7. A hob comprising a top plate as claimed in claim 5 and at least one internal flame burner disposed in said receptacle whose injector communicates with said gas inlet orifice and whose chimney is disposed in line with said opening.
8. The hob claimed in claim 7 wherein said gas burner is of the compact type.
9. The hob claimed in claim 7 wherein said burner comprises an aspiration tube situated substantially in the plane in which the flame outlet orifices of said burner discharge.
10. The hob claimed in claim 7 comprising a plurality of receptacles and burners of different sizes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0309442A FR2858393B1 (en) | 2003-07-31 | 2003-07-31 | RECEPTACLE FOR INTERNAL FLAME GAS BURNER AND COOKING ASSEMBLY COMPRISING SUCH RECEPTACLE AND BURNER |
| FR0309442 | 2003-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2475291A1 true CA2475291A1 (en) | 2005-01-31 |
Family
ID=33523031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002475291A Abandoned CA2475291A1 (en) | 2003-07-31 | 2004-07-16 | Receptacle for internal flame gas burner and hob comprising a receptacle of this kind and burner of this kind |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050026098A1 (en) |
| EP (1) | EP1503146A1 (en) |
| CA (1) | CA2475291A1 (en) |
| FR (1) | FR2858393B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102254657B1 (en) * | 2015-01-13 | 2021-05-21 | 엘지전자 주식회사 | Cooking device and gas burner unit |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3625196A (en) * | 1970-05-05 | 1971-12-07 | W J Schoenberger Co The | Burner cap assembly |
| IT1250838B (en) * | 1991-09-26 | 1995-04-21 | Merloni Elettrodomestici Spa | GAS BURNER. |
| US5437262A (en) * | 1994-02-17 | 1995-08-01 | Gas Research Institute | Burner apparatus |
| JPH1019425A (en) | 1996-06-28 | 1998-01-23 | Hitachi Ltd | Refrigerating machine oil/refrigerant separator |
| WO1999011975A1 (en) * | 1997-08-28 | 1999-03-11 | Aktiebolaget Electrolux | A gas hotplate burner |
| FR2804496B1 (en) * | 2000-01-28 | 2002-07-19 | Sourdillon Sa | MULTIPLE FLAME CROWN GAS BURNER |
| IT1315325B1 (en) * | 2000-04-28 | 2003-02-10 | Paolo Moresco | GAS BURNER FOR HOB |
-
2003
- 2003-07-31 FR FR0309442A patent/FR2858393B1/en not_active Expired - Fee Related
-
2004
- 2004-07-16 CA CA002475291A patent/CA2475291A1/en not_active Abandoned
- 2004-07-29 US US10/901,194 patent/US20050026098A1/en not_active Abandoned
- 2004-07-29 EP EP04291942A patent/EP1503146A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1503146A1 (en) | 2005-02-02 |
| FR2858393B1 (en) | 2005-09-30 |
| FR2858393A1 (en) | 2005-02-04 |
| US20050026098A1 (en) | 2005-02-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |