EP1132685B1 - A gas burner for food cooking apparatus - Google Patents

A gas burner for food cooking apparatus Download PDF

Info

Publication number
EP1132685B1
EP1132685B1 EP20010830030 EP01830030A EP1132685B1 EP 1132685 B1 EP1132685 B1 EP 1132685B1 EP 20010830030 EP20010830030 EP 20010830030 EP 01830030 A EP01830030 A EP 01830030A EP 1132685 B1 EP1132685 B1 EP 1132685B1
Authority
EP
European Patent Office
Prior art keywords
gas
nozzle
mixer tube
burner
burner body
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.)
Expired - Lifetime
Application number
EP20010830030
Other languages
German (de)
French (fr)
Other versions
EP1132685A1 (en
Inventor
William Vezzani
Nello Silvestri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Angelo Po Grandi Cucine SpA
Original Assignee
Angelo Po Grandi Cucine SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Angelo Po Grandi Cucine SpA filed Critical Angelo Po Grandi Cucine SpA
Publication of EP1132685A1 publication Critical patent/EP1132685A1/en
Application granted granted Critical
Publication of EP1132685B1 publication Critical patent/EP1132685B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
  • US-A-5 401 164 discloses a gas burner for a cooking apparatus which comprises : - a nozzle from which combustible gas issues; - a mixer tube, inclined with respect to a vertical axis, and composed of a converging portion, a gulley, and a diverging portion, in which the gas issuing from the nozzle is mixed with combustion air;- a gas ring provided with flame holes.
  • GB-A-1 243 814 disclose a gas burner for a cooking apparatus which differs from US-A-5 401 164 since the axis of the mixer tube is horizontal.
  • JP-A- 61086507 discloses a gas burner which comprises : - a nozzle; a gas ring and a dogleg-shaped mixer tube.
  • 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 a burner body 31 and 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
  • a gas ring 3 with flame holes, which are arranged in one or more horizontal rings, is provided at the top of said burner body 31.
  • Said mixer tube 2 which issues a gas-air mixture to said burner body 31, has a straight axis and is coupled to the burner body 31 in a seating 4 which is located at the bottom of said burner body 31.
  • 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)

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.
  • US-A-5 401 164 discloses a gas burner for a cooking apparatus which comprises : - a nozzle from which combustible gas issues; - a mixer tube, inclined with respect to a vertical axis, and composed of a converging portion, a gulley, and a diverging portion, in which the gas issuing from the nozzle is mixed with combustion air;- a gas ring provided with flame holes. GB-A-1 243 814 disclose a gas burner for a cooking apparatus which differs from US-A-5 401 164 since the axis of the mixer tube is horizontal. JP-A- 61086507 discloses a gas burner which comprises : - a nozzle; a gas ring and a dogleg-shaped mixer tube.
  • 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 a burner body 31 and 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 Agas ring 3 with flame holes, which are arranged in one or more horizontal rings, is provided at the top of said burner body 31.
  • Said mixer tube 2, which issues a gas-air mixture to said burner body 31, has a straight axis and is coupled to the burner body 31 in a seating 4 which is located at the bottom of said burner body 31.
  • 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 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.
  • 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 the fall of dirt coming from the exit section of the diverging portion 22 of the mixer tube 2 since, thanks to the inclination of the mixer tube 2, the nozzle 1 cannot be directly hit.

Claims (2)

  1. A gas burner for open-fire food cooking apparatus comprising burner body (31),a nozzle (1) for issuing combustible gas, a mixer tube (2) being 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, said mixer tube (2) issuing a gas-air mixture to said burner body (31), a gas ring (3) with flame holes being provided at the top of said burner body, said mixer tube (2) having a straight axis and being coupled to said burner body (31) in a seating (4) which is located at the bottom of said burner body (31), characterized in that said seating (4) is coaxial with the axis of the mixer tube (2).
  2. The gas burner of claim 1, characterised in that the axis of the mixer tube (2) is inclined 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).
EP20010830030 2000-03-10 2001-01-19 A gas burner for food cooking apparatus Expired - Lifetime EP1132685B1 (en)

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 EP1132685A1 (en) 2001-09-12
EP1132685B1 true 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)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2919C2 (en) * 2004-05-11 2006-09-30 Юрий ГОРДЕЕВ Injector incomplete premix burner (variants)
ITTO20050685A1 (en) 2005-09-30 2007-04-01 Indesit Co Spa COOKTOP WITH GAS BURNER INCLUDING A SEMIPERMEABLE ELEMENT
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.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1243814A (en) * 1967-09-16 1971-08-25 Zanussi A Spa Industrie Gas burner
ES385687A1 (en) * 1970-11-18 1973-03-16 Martinez Martin Burner perfected. (Machine-translation by Google Translate, not legally binding)
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
GB2280743B (en) * 1993-08-06 1997-03-19 Tri Square Ind Co Ltd Gas burner

Also Published As

Publication number Publication date
EP1132685A1 (en) 2001-09-12
DE60100059T2 (en) 2003-10-09
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
CN102388269B (en) Cooktop swirl burner
US5240411A (en) Atmospheric gas burner assembly
EP0816756A2 (en) Vortex burner
WO2009100624A1 (en) Burner forming and applying mixed cyclone and combustion method using the burner
CA1040090A (en) Flare gas burner
MXPA01006552A (en) Low nox apparatus and methods for burning liquid and gaseous fuels.
PL356795A1 (en) Gas burner of atmospheric type, in particular that for a household cooking range
EP1132685B1 (en) A gas burner for food cooking apparatus
US4014639A (en) Recirculating vortex burner
US5704777A (en) Outdoor gas burner
CN105757726A (en) Jet flame concealed ignition device and burner applying the same
EP0754917A3 (en) Combustion device in lighters
EP0433208B1 (en) A burner for glass-ceramic cooker tops.
US5433601A (en) Deposit-free burner
EP2396597B1 (en) Burner comprising a pilot
IE843139L (en) Coanda flare
DE60130731D1 (en) oil burner
KR20050006513A (en) adjustable gas burner
JP2002039513A (en) Gas burner
CA2166431C (en) Burner tube and space heater employing the tube
CA2399407A1 (en) Flammable vapor resistant water heater with low nox emissions
EP0514930A3 (en) Radiant burner for gaseous fuel
JP3091459B1 (en) Gas burner equipment
US3698379A (en) Orchard heater
JP4917548B2 (en) Burner combustion efficiency improvement device

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