EP1132685A1 - A gas burner for food cooking apparatus - Google Patents
A gas burner for food cooking apparatus Download PDFInfo
- Publication number
- EP1132685A1 EP1132685A1 EP01830030A EP01830030A EP1132685A1 EP 1132685 A1 EP1132685 A1 EP 1132685A1 EP 01830030 A EP01830030 A EP 01830030A EP 01830030 A EP01830030 A EP 01830030A EP 1132685 A1 EP1132685 A1 EP 1132685A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- gas
- mixer tube
- gas burner
- cooking apparatus
- 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
Images
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
Definitions
- the invention is usefully applied to gas burners of a type comprising a nozzle from which combustible gas issues; the gas is then mixed with a portion of combustion air in a mixer tube or Venturi tube, above which a burner ring is provided, horizontally arranged in one or more rings.
- the mixer tube also known as a Venturi tube
- the mixer tube is located vertically above the nozzle from which the gas issues.
- This tube is inevitably prone to being directly hit by particles of dirt which can seriously compromise its functionality and efficiency.
- a further drawback is that residues of dirt might collect in the elbow, a difficult place to reach and therefore to clean.
- the main aim of the present invention is to obviate the limitations and drawbacks inherent in the prior art.
- An advantage of the invention is that the nozzle is very easily inspected and cleaned from the outside when the gas ring is removed.
- figure 1 is a schematic section made according to a plane containing the axis of the mixer tube.
- 1 denotes a nozzle from which combustible gas issues, being part of a gas burner for food cooking apparatus, especially for cooking foodstuffs on an open flame.
- the burner of the atmospheric type, apart from the nozzle 1 comprises an injector or mixer tube, or Venturi tube 2, made up of a converging portion 20, a gulley 21 and a diverging portion 22, in which the gas exiting from the nozzle 1 is mixed with a portion of combustion air, and a gas ring 3 provided with holes for flames, arranged in one or more horizontal rings.
- the special quality of the burner is that the mixer tube 2 has an inclined axis with respect to the vertical of an angle ⁇ .
- the entity of the inclination is such that the vertical projection of none of the internal sections of the mixer tube 2 comprised between the outlet mouth of the diverging portion 22 and the gulley 21 intercepts the nozzle 1.
- the mixer tube 2 has a straight axis and is coupled coaxially in a seating 4 which is coaxial to the nozzle 1.
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
- Specifically, though not exclusively, the invention is usefully applied to gas burners of a type comprising a nozzle from which combustible gas issues; the gas is then mixed with a portion of combustion air in a mixer tube or Venturi tube, above which a burner ring is provided, horizontally arranged in one or more rings.
- In the commonest prior art applications, the mixer tube, also known as a Venturi tube, is located vertically above the nozzle from which the gas issues. This tube, however, is inevitably prone to being directly hit by particles of dirt which can seriously compromise its functionality and efficiency.
- An attempt to solve this problem has been made by designing dogleg-shaped burners in which the mixer tube and therefore the nozzle are arranged upstream of a 90° elbow in the vertical tract of the tube taking the mixture of air and gas to the gas ring.
- This solution, however, has the drawback that on removal of the gas ring the nozzle is not visible and cannot be inspected simply and safely from above.
- A further drawback is that residues of dirt might collect in the elbow, a difficult place to reach and therefore to clean.
- The main aim of the present invention is to obviate the limitations and drawbacks inherent in the prior art.
- An advantage of the invention is that the nozzle is very easily inspected and cleaned from the outside when the gas ring is removed.
- These aims and advantages and others besides are all attained by the invention as it is characterised in the appended claims.
- Further characteristics and advantages of the present invention will better emerge from the detailed description that follows of a preferred but non-exclusive embodiment of the invention, illustrated purely by way of nonlimiting example in the accompanying figure of the drawing, in which: figure 1 is a schematic section made according to a plane containing the axis of the mixer tube.
- With reference to figure 1, 1 denotes a nozzle from which combustible gas issues, being part of a gas burner for food cooking apparatus, especially for cooking foodstuffs on an open flame.
- The burner, of the atmospheric type, apart from the nozzle 1 comprises an injector or mixer tube, or Venturi
tube 2, made up of a convergingportion 20, agulley 21 and a divergingportion 22, in which the gas exiting from the nozzle 1 is mixed with a portion of combustion air, and agas ring 3 provided with holes for flames, arranged in one or more horizontal rings. - The special quality of the burner is that the
mixer tube 2 has an inclined axis with respect to the vertical of an angle α. - The entity of the inclination is such that the vertical projection of none of the internal sections of the
mixer tube 2 comprised between the outlet mouth of the divergingportion 22 and thegulley 21 intercepts the nozzle 1. - The
mixer tube 2 has a straight axis and is coupled coaxially in aseating 4 which is coaxial to the nozzle 1. - This means that once the
gas ring 3 is removed the nozzle 1 is perfectly visible from outside and can be inspected. At the same time the nozzle 1 is protected from thefall of dirt coming from the exit section of the divergingportion 22 of themixer tube 2 since, thanks to the inclination of themixer tube 2, the nozzle 1 cannot be directly hit.
Claims (3)
- A gas burner for open-fire food cooking apparatus, comprising a nozzle (1) from which combustible gas issues, a mixer tube (2) composed of a converging portion (20), a gulley (21) and a diverging portion (22), in which the gas issuing from the nozzle (1) is mixed with a portion of combustion air; also comprising a gas ring provided with flame holes, characterised in that an axis of the mixer tube (2) is inclined with respect to a vertical.
- The gas burner of claim 1, characterised in that the inclined axis of the mixer tube (2) is such that a vertical projection of no section comprised between an exit mouth of the diverging portion (22) and the gulley (21) intercepts the nozzle (1).
- The gas burner of claim 1 or 2, characterised in that the mixer tube (2) has a straight axis and is coupled coaxially in a seating (4) and is also coaxial with the nozzle (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMO20000044 IT1315614B1 (en) | 2000-03-10 | 2000-03-10 | GAS BURNER FOR FOOD COOKING EQUIPMENT. |
ITMO000044 | 2000-03-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1132685A1 true EP1132685A1 (en) | 2001-09-12 |
EP1132685B1 EP1132685B1 (en) | 2002-12-04 |
Family
ID=11450397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20010830030 Expired - Lifetime EP1132685B1 (en) | 2000-03-10 | 2001-01-19 | A gas burner for food cooking apparatus |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1132685B1 (en) |
DE (1) | DE60100059T2 (en) |
ES (1) | ES2187495T3 (en) |
IT (1) | IT1315614B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2919C2 (en) * | 2004-05-11 | 2006-09-30 | Юрий ГОРДЕЕВ | Injector incomplete premix burner (variants) |
WO2008104845A2 (en) * | 2007-02-26 | 2008-09-04 | Indesit Company S.P.A. | Gas burner system for food cooking appliances |
US8662069B2 (en) | 2005-09-30 | 2014-03-04 | Indesit Company S.P.A. | Cooking top with gas burner comprising a semi-permeable element |
US8683991B2 (en) | 2007-02-27 | 2014-04-01 | Indesit Company, S.P.A. | Cooking top |
US9285115B2 (en) | 2007-02-27 | 2016-03-15 | Indesit Company S.P.A. | Cooking top |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1243814A (en) * | 1967-09-16 | 1971-08-25 | Zanussi A Spa Industrie | Gas burner |
FR2114336A5 (en) * | 1970-11-18 | 1972-06-30 | Martinez Pilar | |
FR2404803A1 (en) * | 1977-09-29 | 1979-04-27 | Sourdillon Sa | Burner for domestic gas cooker - has mixer tube below the head and downstream of metering jet |
JPS6186507A (en) * | 1984-10-02 | 1986-05-02 | Matsushita Electric Ind Co Ltd | Cooking burner |
US5401164A (en) * | 1993-08-06 | 1995-03-28 | Tri Square Industrial Co., Ltd. | Gas burner |
-
2000
- 2000-03-10 IT ITMO20000044 patent/IT1315614B1/en active
-
2001
- 2001-01-19 ES ES01830030T patent/ES2187495T3/en not_active Expired - Lifetime
- 2001-01-19 DE DE2001600059 patent/DE60100059T2/en not_active Expired - Lifetime
- 2001-01-19 EP EP20010830030 patent/EP1132685B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1243814A (en) * | 1967-09-16 | 1971-08-25 | Zanussi A Spa Industrie | Gas burner |
FR2114336A5 (en) * | 1970-11-18 | 1972-06-30 | Martinez Pilar | |
FR2404803A1 (en) * | 1977-09-29 | 1979-04-27 | Sourdillon Sa | Burner for domestic gas cooker - has mixer tube below the head and downstream of metering jet |
JPS6186507A (en) * | 1984-10-02 | 1986-05-02 | Matsushita Electric Ind Co Ltd | Cooking burner |
US5401164A (en) * | 1993-08-06 | 1995-03-28 | Tri Square Industrial Co., Ltd. | Gas burner |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 261 (M - 514) 5 September 1986 (1986-09-05) * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2919C2 (en) * | 2004-05-11 | 2006-09-30 | Юрий ГОРДЕЕВ | Injector incomplete premix burner (variants) |
US8662069B2 (en) | 2005-09-30 | 2014-03-04 | Indesit Company S.P.A. | Cooking top with gas burner comprising a semi-permeable element |
WO2008104845A2 (en) * | 2007-02-26 | 2008-09-04 | Indesit Company S.P.A. | Gas burner system for food cooking appliances |
WO2008104845A3 (en) * | 2007-02-26 | 2009-04-09 | Indesit Co Spa | Gas burner system for food cooking appliances |
US8746229B2 (en) | 2007-02-26 | 2014-06-10 | Indesit Company S.P.A. | Gas burner system for food cooking appliances |
EP2947386A3 (en) * | 2007-02-26 | 2015-12-02 | Indesit Company S.p.A. | Gas burners system for food cooking appliances, and gas burner thereof |
US8683991B2 (en) | 2007-02-27 | 2014-04-01 | Indesit Company, S.P.A. | Cooking top |
US9285115B2 (en) | 2007-02-27 | 2016-03-15 | Indesit Company S.P.A. | Cooking top |
Also Published As
Publication number | Publication date |
---|---|
DE60100059T2 (en) | 2003-10-09 |
EP1132685B1 (en) | 2002-12-04 |
DE60100059D1 (en) | 2003-01-16 |
IT1315614B1 (en) | 2003-03-14 |
ES2187495T3 (en) | 2003-06-16 |
ITMO20000044A1 (en) | 2001-09-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2796889B2 (en) | Apparatus and method for exhaust gas recirculation for NOx reduction in premix burners | |
JP5406855B2 (en) | Combustor combustion method | |
CA1091571A (en) | Nox abatement in burning of gaseous or liquid fuels | |
US4872833A (en) | Gas burner construction | |
CN102388269A (en) | Cooktop swirl burner | |
MXPA01006552A (en) | Low nox apparatus and methods for burning liquid and gaseous fuels. | |
EP0955501A3 (en) | Electric cooking oven with infrared gas broiler | |
CA1040090A (en) | Flare gas burner | |
DE60201562D1 (en) | Torch with ultra-stable pilot burner and process | |
EP1132685A1 (en) | A gas burner for food cooking apparatus | |
US4014639A (en) | Recirculating vortex burner | |
US1951379A (en) | Combined gas and oil burner | |
US20020076669A1 (en) | NOx reduction device | |
CN105757726A (en) | Jet flame concealed ignition device and burner applying the same | |
USRE28679E (en) | Burners | |
EP0433208B1 (en) | A burner for glass-ceramic cooker tops. | |
EP2396597B1 (en) | Burner comprising a pilot | |
KR20050006513A (en) | adjustable gas burner | |
KR200328095Y1 (en) | adjustable gas burner | |
HUT66431A (en) | Burner devoid of deposit | |
EP1217294A2 (en) | A radiant tube burner | |
CA2399407A1 (en) | Flammable vapor resistant water heater with low nox emissions | |
US5516282A (en) | Burner tube and space heater employing the tube | |
JP4917548B2 (en) | Burner combustion efficiency improvement device | |
CN208901389U (en) | A kind of low-oxynitride combustor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20010615 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Kind code of ref document: A1 Designated state(s): DE ES FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17Q | First examination report despatched |
Effective date: 20011116 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
AKX | Designation fees paid |
Free format text: DE ES FR GB IT |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 60100059 Country of ref document: DE Date of ref document: 20030116 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2187495 Country of ref document: ES Kind code of ref document: T3 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030905 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20080218 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080116 Year of fee payment: 8 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090119 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090119 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20090120 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090120 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20160331 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60100059 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170801 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20190128 Year of fee payment: 19 Ref country code: IT Payment date: 20190124 Year of fee payment: 19 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200119 |