WO2017097327A1 - Gas oven with improved heat protection - Google Patents
Gas oven with improved heat protection Download PDFInfo
- Publication number
- WO2017097327A1 WO2017097327A1 PCT/EP2015/078835 EP2015078835W WO2017097327A1 WO 2017097327 A1 WO2017097327 A1 WO 2017097327A1 EP 2015078835 W EP2015078835 W EP 2015078835W WO 2017097327 A1 WO2017097327 A1 WO 2017097327A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- enamelled
- cover
- gas oven
- protective shield
- Prior art date
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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
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
- F24C3/087—Arrangement or mounting of burners on ranges in baking ovens
-
- 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
- F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
- F24C14/02—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type
- F24C14/025—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type for gaseous fuels
-
- 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
- F24C15/22—Reflectors for radiation heaters
-
- 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
- F24C15/24—Radiant bodies or panels for radiation heaters
Definitions
- the present invention relates to a cooking appliance, in particular to a gas oven.
- a gas oven generally comprises a cooking chamber for cooking the food; an opening for allowing access to the cooking chamber; a combustion chamber for combusting the gas; and a gas burner which is disposed into the combustion chamber.
- a problem with the prior art gas oven is that during the cooking/baking process the inner surface of the cooking chamber is generally spoiled with food residues.
- the cleaning of the hardened food residues is usually very laborious.
- the inner surface of the cooking chamber is commonly enamelled. But the excessive heat of the combusted gas can deform the inner surface and develop hairline fractures in the enamel and even cause the enamel to flake off.
- WO2008/077967A1 discloses a gas oven.
- An objective of the present invention is to provide a gas oven which solves the aforementioned problems of the prior art in a cost-effective way and which enables a safe operation of the gas burner even at the maximum power.
- the gas oven of the present invention comprises: an enamelled cover which defines the floor of the cooking chamber and the ceiling of the combustion chamber, wherein the enamelled cover has one or more apertures for allowing the passage of the hot air from the combustion chamber into the cooking chamber; and a heat protective shield which is located immediately below the enamelled cover and immediately above the region which is exposed to the ascending flames that are emitted from the gas burner in operation so as to prevent the ascending flames from hitting the enamelled cover.
- a major advantageous effect of the present invention is that the enamelled cover is protected against deformations, hairline fractures and flaking off by virtue of the heat protective shield which prevent the ascending flames from hitting the enamelled cover.
- the gas oven can be safely operated at the maximum power.
- the life of the gas oven can be prolonged, and the quality of the gas oven can be improved.
- wing-like radiators are spanned above the gas burner so as to uniformly radiate the heat towards the enamelled cover and the apertures.
- the wing-like radiators also have a function similar to the heat protective shield as they prevent the ascending flames from hitting the enamelled cover.
- the heat protective shield is disposed immediately above the front end of the gas burner and above the front end of the wing-like radiators so to prevent the ascending flames from hitting the enamelled cover.
- This embodiment is particularly advantageous as the flames which migrate sideways and upwards around the fringes of the gas burner and the wing-like radiators can be effectively blocked by the heat protective shield, and thus the enamelled cover can be further protected against deformations, hairline fractures and flaking off.
- the heat protective shield has a reflector section that reflects the heat towards the apertures and away from the said region. This embodiment is particularly advantageous as the cooking chamber can be more uniformly heated, and thus the enamelled cover can be more effectively protected.
- the heat protective shield extends between the two apertures of the enamelled cover which are are respectively located on the left side and the right side.
- This embodiment is particularly advantageous as the enameled cover can be effectively protected without obstructing the flow passage of the hot air into the cooking chamber.
- the combustion chamber, the enamelled cover and the heat protective shield are removably held by the bottom frame of the gas oven.
- the gas burner can be serviced through the bottom frame and the opening of the cooking chamber when the door is opened and the enamelled cover and the heat protective shield have been removed. This embodiment is particularly advantageous as the maintenance of the gas burner can be easily performed.
- the heat protective shield is removably fixed to the combustion chamber and the bottom frame through a fixing means.
- the fixing means comprises a screw connection.
- the gas oven has a pyrolytic function which can be selected by the user for initiating the self-cleaning of the cooking chamber.
- This embodiment is particularly advantageous as the cooking chamber can be easily cleaned through the pyrolysis process.
- Figure 1 - is a schematic partial perspective view of a gas oven according to an embodiment of the present invention, wherein the upper parts of the cooking chamber and the door of the cooking chamber have been omitted for ease of illustration;
- Figure 2 - is a schematic exploded view of the gas oven of Fig. 1;
- Figure 3 - is a schematic top view of the gas oven of Fig. 1;
- Figure 4 - is a schematic sectional view of the gas oven of Fig. 1, taken along the line A-A of Fig. 3;
- Figure 5 - is a schematic sectional view of the gas oven of Fig. 1, taken along the line B-B of Fig. 3.
- R The region which is exposed to the ascending flames that are emitted from the gas burner (5).
- the gas oven (1) comprises a cooking chamber (2) for cooking food; an opening (3) for allowing access to the cooking chamber (2), a pivotable door (not shown), a combustion chamber (4) for combusting the gas and a gas burner (5) which is disposed into the combustion chamber (4) (Fig. 1 and Fig. 2).
- the gas oven (1) of the present invention further comprises an enamelled cover (6) which defines the floor of the cooking chamber (2) and the ceiling of the combustion chamber (4), wherein the enamelled cover (6) has one or more apertures (7) for allowing the passage of the hot air from the combustion chamber (4) into the cooking chamber (2) and a heat protective shield (8) which is located immediately below the enamelled cover (6) and immediately above the region (R) which is exposed to the ascending flames that are emitted from the gas burner (5) in operation so as to prevent the ascending flames from hitting the enamelled cover (6) (Fig. 2).
- the gas oven (1) further comprises wing-like radiators (9) which are symmetrically spanned above the entire length of the gas burner (5) and adapted to shield the ascending flames and to radiate the heat of the combusted gas towards the enamelled cover (6) (Fig. 2).
- the gas burner (5) extends from the rear side to the front side (Fig. 4).
- the heat protective shield (8) is disposed immediately above the front end of the gas burner (5) and above the front end of the wing-like radiators (9) which together corresponds to the fringes of the said region (R) (Fig. 4).
- the heat protective shield (8) has a reflector section (10) which is centered and adapted to reflect the heat of the combusted gas towards the apertures (7) of the enamelled cover (6) and away from the said region (R) (Fig. 5).
- the enamelled cover (6) has at least two apertures (7) which are located respectively on the left side and the right side and which extend inwardly (Fig. 3).
- the heat protective shield (8) extends between the said two apertures (7) across the width of the enamelled cover (6) (Fig. 5).
- the gas oven (1) further comprises a bottom frame (11) which surrounds the floor of the cooking chamber (2) (Fig. 1 and Fig. 2).
- the combustion chamber (4), the enamelled cover (6) and the heat protective shield (8) are removably held by the bottom frame (11) (Fig. 2).
- the enamelled cover (6) has a size and shape which allows the servicing of the gas burner (5) through the bottom frame (11) and the opening (3) of the cooking chamber (2) when the enamelled cover (6) and the heat protective shield (8) have been removed (Fig.2 and Fig. 4).
- the gas oven (1) further comprises a fixing means (12) for removably fixing the heat protective shield (8) to the combustion chamber (4) and the bottom frame (11) (Fig. 2 and Fig. 4).
- the gas oven (1) further comprises a fastening means (13) for removably fastening the gas burner (5) to the combustion chamber (4) (Fig. 2 and Fig. 4).
- the gas oven (1) further comprises an attachment means (14) for detachably attaching the enamelled cover (6) to the combustion chamber (4) and the bottom frame (11) (Fig. 2 and Fig. 4).
- the gas oven (1) further comprises a pyrolytic function for the self-cleaning of the cooking chamber.
- a major advantageous effect of the present invention is that the enamelled cover (6) is protected against deformations, hairline fractures and flaking off by virtue of the heat protective shield (8) which prevents the ascending flames from hitting the enamelled cover (6) (Fig. 4).
- the gas oven (1) can be safely operated at the maximum power.
- the life of the gas oven (1) can be prolonged, and the quality of the gas oven (1) can be improved.
- Other advantageous effects of the present invention can be taken from the above-described embodiments.
Abstract
The present invention relates to a gas oven (1) comprising a cooking chamber (2), an opening (3) for accessing the cooking chamber (2), a combustion chamber (4) and a gas burner (5) which is disposed into the combustion chamber (4). The gas oven (1) of the present invention further comprises an enamelled cover (6) which defines the floor of the cooking chamber (2) and the ceiling of the combustion chamber (4), wherein the enamelled cover (6) has one or more apertures (7) for allowing the passage of the hot air from the combustion chamber (4) into the cooking chamber (2).
Description
The present invention relates to a cooking appliance, in particular to a gas oven.
Gas ovens are commonly known in the art. A gas oven generally comprises a cooking chamber for cooking the food; an opening for allowing access to the cooking chamber; a combustion chamber for combusting the gas; and a gas burner which is disposed into the combustion chamber.
A problem with the prior art gas oven is that during the cooking/baking process the inner surface of the cooking chamber is generally spoiled with food residues. The cleaning of the hardened food residues is usually very laborious. In order to facilitate the cleaning of the hardened food residues, the inner surface of the cooking chamber is commonly enamelled. But the excessive heat of the combusted gas can deform the inner surface and develop hairline fractures in the enamel and even cause the enamel to flake off.
WO2008/077967A1 discloses a gas oven.
An objective of the present invention is to provide a gas oven which solves the aforementioned problems of the prior art in a cost-effective way and which enables a safe operation of the gas burner even at the maximum power.
This objective has been achieved by the gas oven as defined in claim 1. Further achievements have been attained by the subject-matters respectively defined in the dependent claims.
The gas oven of the present invention comprises: an enamelled cover which defines the floor of the cooking chamber and the ceiling of the combustion chamber, wherein the enamelled cover has one or more apertures for allowing the passage of the hot air from the combustion chamber into the cooking chamber; and a heat protective shield which is located immediately below the enamelled cover and immediately above the region which is exposed to the ascending flames that are emitted from the gas burner in operation so as to prevent the ascending flames from hitting the enamelled cover.
A major advantageous effect of the present invention is that the enamelled cover is protected against deformations, hairline fractures and flaking off by virtue of the heat protective shield which prevent the ascending flames from hitting the enamelled cover. Thereby, the gas oven can be safely operated at the maximum power. With the present invention, the life of the gas oven can be prolonged, and the quality of the gas oven can be improved.
In an embodiment, wing-like radiators are spanned above the gas burner so as to uniformly radiate the heat towards the enamelled cover and the apertures. The wing-like radiators also have a function similar to the heat protective shield as they prevent the ascending flames from hitting the enamelled cover. In this embodiment, the heat protective shield is disposed immediately above the front end of the gas burner and above the front end of the wing-like radiators so to prevent the ascending flames from hitting the enamelled cover. This embodiment is particularly advantageous as the flames which migrate sideways and upwards around the fringes of the gas burner and the wing-like radiators can be effectively blocked by the heat protective shield, and thus the enamelled cover can be further protected against deformations, hairline fractures and flaking off.
In another embodiment, the heat protective shield has a reflector section that reflects the heat towards the apertures and away from the said region. This embodiment is particularly advantageous as the cooking chamber can be more uniformly heated, and thus the enamelled cover can be more effectively protected.
In this embodiment, the heat protective shield extends between the two apertures of the enamelled cover which are are respectively located on the left side and the right side. This embodiment is particularly advantageous as the enameled cover can be effectively protected without obstructing the flow passage of the hot air into the cooking chamber.
In another embodiment, the combustion chamber, the enamelled cover and the heat protective shield are removably held by the bottom frame of the gas oven. In this embodiment, the gas burner can be serviced through the bottom frame and the opening of the cooking chamber when the door is opened and the enamelled cover and the heat protective shield have been removed. This embodiment is particularly advantageous as the maintenance of the gas burner can be easily performed.
In another embodiment, the heat protective shield is removably fixed to the combustion chamber and the bottom frame through a fixing means. In another embodiment, the fixing means comprises a screw connection. These embodiments are particularly advantageous as the heat protective shield can be securely held in place relative to the gas burner, and thus the integrity of the gas oven can be improved.
In another embodiment, the gas oven has a pyrolytic function which can be selected by the user for initiating the self-cleaning of the cooking chamber. This embodiment is particularly advantageous as the cooking chamber can be easily cleaned through the pyrolysis process.
Additional features and additional advantageous effects of the gas oven according to the present invention will become more apparent with the detailed description of the embodiments with reference to the accompanying drawings in which:
Figure 1 - is a schematic partial perspective view of a gas oven according to an embodiment of the present invention, wherein the upper parts of the cooking chamber and the door of the cooking chamber have been omitted for ease of illustration;
Figure 2 - is a schematic exploded view of the gas oven of Fig. 1;
Figure 3 - is a schematic top view of the gas oven of Fig. 1;
Figure 4 - is a schematic sectional view of the gas oven of Fig. 1, taken along the line A-A of Fig. 3;
Figure 5 - is a schematic sectional view of the gas oven of Fig. 1, taken along the line B-B of Fig. 3.
The reference signs appearing on the drawings relate to the following technical features.
- Gas oven
- Cooking chamber
- Opening
- Combustion chamber
- Gas burner
- Enamelled cover
- Aperture
- Heat protective shield
- Wing-like radiator
- Reflector section
- Bottom frame
- Fixing means
- Fastening means
- Attachment means
R: The region which is exposed to the ascending flames that are
emitted from the gas burner (5).
emitted from the gas burner (5).
The gas oven (1) comprises a cooking chamber (2) for cooking food; an opening (3) for allowing access to the cooking chamber (2), a pivotable door (not shown), a combustion chamber (4) for combusting the gas and a gas burner (5) which is disposed into the combustion chamber (4) (Fig. 1 and Fig. 2).
The gas oven (1) of the present invention further comprises an enamelled cover (6) which defines the floor of the cooking chamber (2) and the ceiling of the combustion chamber (4), wherein the enamelled cover (6) has one or more apertures (7) for allowing the passage of the hot air from the combustion chamber (4) into the cooking chamber (2) and a heat protective shield (8) which is located immediately below the enamelled cover (6) and immediately above the region (R) which is exposed to the ascending flames that are emitted from the gas burner (5) in operation so as to prevent the ascending flames from hitting the enamelled cover (6) (Fig. 2).
In an embodiment, the gas oven (1) further comprises wing-like radiators (9) which are symmetrically spanned above the entire length of the gas burner (5) and adapted to shield the ascending flames and to radiate the heat of the combusted gas towards the enamelled cover (6) (Fig. 2). In this embodiment, the gas burner (5) extends from the rear side to the front side (Fig. 4). In this embodiment, the heat protective shield (8) is disposed immediately above the front end of the gas burner (5) and above the front end of the wing-like radiators (9) which together corresponds to the fringes of the said region (R) (Fig. 4).
In another embodiment, the heat protective shield (8) has a reflector section (10) which is centered and adapted to reflect the heat of the combusted gas towards the apertures (7) of the enamelled cover (6) and away from the said region (R) (Fig. 5).
In another embodiment, the enamelled cover (6) has at least two apertures (7) which are located respectively on the left side and the right side and which extend inwardly (Fig. 3). In this embodiment, the heat protective shield (8) extends between the said two apertures (7) across the width of the enamelled cover (6) (Fig. 5).
In another embodiment, the gas oven (1) further comprises a bottom frame (11) which surrounds the floor of the cooking chamber (2) (Fig. 1 and Fig. 2). In this embodiment, the combustion chamber (4), the enamelled cover (6) and the heat protective shield (8) are removably held by the bottom frame (11) (Fig. 2). In this embodiment, the enamelled cover (6) has a size and shape which allows the servicing of the gas burner (5) through the bottom frame (11) and the opening (3) of the cooking chamber (2) when the enamelled cover (6) and the heat protective shield (8) have been removed (Fig.2 and Fig. 4).
In another embodiment, the gas oven (1) further comprises a fixing means (12) for removably fixing the heat protective shield (8) to the combustion chamber (4) and the bottom frame (11) (Fig. 2 and Fig. 4).
In another embodiment, the gas oven (1) further comprises a fastening means (13) for removably fastening the gas burner (5) to the combustion chamber (4) (Fig. 2 and Fig. 4).
In another embodiment, the gas oven (1) further comprises an attachment means (14) for detachably attaching the enamelled cover (6) to the combustion chamber (4) and the bottom frame (11) (Fig. 2 and Fig. 4).
In another embodiment, the gas oven (1) further comprises a pyrolytic function for the self-cleaning of the cooking chamber.
A major advantageous effect of the present invention is that the enamelled cover (6) is protected against deformations, hairline fractures and flaking off by virtue of the heat protective shield (8) which prevents the ascending flames from hitting the enamelled cover (6) (Fig. 4). Thereby, the gas oven (1) can be safely operated at the maximum power. With the present invention, the life of the gas oven (1) can be prolonged, and the quality of the gas oven (1) can be improved. Other advantageous effects of the present invention can be taken from the above-described embodiments.
Claims (7)
- A gas oven (1) comprising a cooking chamber (2) for cooking food, an opening (3) for allowing access to the cooking chamber (2), a combustion chamber (4) for combusting the gas and a gas burner (5) which is disposed into the combustion chamber (4), characterized in that an enamelled cover (6) which defines the floor of the cooking chamber (2) and the ceiling of the combustion chamber (4), wherein the enamelled cover (6) has one or more apertures (7) for allowing the passage of the hot air from the combustion chamber (4) into the cooking chamber (2) and a heat protective shield (8) which is located immediately below the enamelled cover (6) and immediately above the region (R) which is exposed to the ascending flames that are emitted from the gas burner (5) in operation so as to prevent the ascending flames from hitting the enamelled cover (6).
- The gas oven (1) according to claim 1, characterized in that wing-like radiators (9) which are symmetrically spanned above the entire length of the gas burner (5) and adapted to shield the ascending flames and to radiate the heat of the combusted gas towards the enamelled cover (6), wherein the gas burner (5) extends from the rear side to the front side, and wherein the heat protective shield (8) is disposed immediately above the front end of the gas burner (5) and above the front end of the wing-like radiators (9) which together correspond to the fringes of the said region (R).
- The gas oven (1) according to claim 2, characterized in that the heat protective shield (8) has a reflector section (10) which is centered and adapted to reflect the heat of the combusted gas towards the apertures (7) of the enamelled cover (6) and away from the said region (R).
- The gas oven (1) according to claim 1, characterized in that the enamelled cover (6) has at least two apertures (7) which are located respectively on the left side and the right side and which extend inwardly, and the heat protective shield (8) extends between the said two apertures (7) across the width of the enamelled cover (6).
- The gas oven (1) according to any one of claims 1 to 4, characterized in that a bottom frame (11) which surrounds the floor of the cooking chamber (2), wherein the combustion chamber (4), the enamelled cover (6) and the heat protective shield (8) are removably held by the bottom frame (11), and wherein the enamelled cover (6) has a size and shape which allows servicing of the gas burner (5) through the bottom frame (11) and the opening (3) of the cooking chamber (2) when the enamelled cover (6) and the heat protective shield (8) have been removed.
- The gas oven (1) according to claim 5, characterized in that a fixing means (12) for removably fixing the heat protective shield (8) to the combustion chamber (4) and the bottom frame (11).
- The gas oven (1) according to claim 1, characterized in that a pyrolytic function for the self-cleaning of the cooking chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/EP2015/078835 WO2017097327A1 (en) | 2015-12-07 | 2015-12-07 | Gas oven with improved heat protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2015/078835 WO2017097327A1 (en) | 2015-12-07 | 2015-12-07 | Gas oven with improved heat protection |
Publications (1)
Publication Number | Publication Date |
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WO2017097327A1 true WO2017097327A1 (en) | 2017-06-15 |
Family
ID=54782753
Family Applications (1)
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PCT/EP2015/078835 WO2017097327A1 (en) | 2015-12-07 | 2015-12-07 | Gas oven with improved heat protection |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3530847A (en) * | 1968-04-02 | 1970-09-29 | Caloric Corp | Gas-fueled self-cleaning oven |
US3624743A (en) * | 1970-06-15 | 1971-11-30 | Gen Electric | Gas-cooking oven with oven scavenging means |
GB2039029A (en) * | 1978-12-13 | 1980-07-30 | Europ Equip Menager | A gas oven with two oven compartments |
EP1111309A1 (en) * | 1999-12-23 | 2001-06-27 | Brandt Cooking | Gas oven |
WO2008077967A1 (en) | 2006-12-26 | 2008-07-03 | Arcelik Anonim Sirketi | An oven |
EP2184545A1 (en) * | 2008-11-11 | 2010-05-12 | Indesit Company S.P.A. | Cooking oven |
-
2015
- 2015-12-07 WO PCT/EP2015/078835 patent/WO2017097327A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3530847A (en) * | 1968-04-02 | 1970-09-29 | Caloric Corp | Gas-fueled self-cleaning oven |
US3624743A (en) * | 1970-06-15 | 1971-11-30 | Gen Electric | Gas-cooking oven with oven scavenging means |
GB2039029A (en) * | 1978-12-13 | 1980-07-30 | Europ Equip Menager | A gas oven with two oven compartments |
EP1111309A1 (en) * | 1999-12-23 | 2001-06-27 | Brandt Cooking | Gas oven |
WO2008077967A1 (en) | 2006-12-26 | 2008-07-03 | Arcelik Anonim Sirketi | An oven |
EP2184545A1 (en) * | 2008-11-11 | 2010-05-12 | Indesit Company S.P.A. | Cooking oven |
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