EP1132685A1 - A gas burner for food cooking apparatus - Google Patents

A gas burner for food cooking apparatus Download PDF

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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
Application number
EP01830030A
Other languages
German (de)
French (fr)
Other versions
EP1132685B1 (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

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06Premix 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
    • F23D14/065Premix 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

The gas burner for open-fire food cooking apparatus comprises 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, and also comprises a gas ring provided with flame holes, wherein an axis of the mixer tube (2) is inclined with respect to a vertical.

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 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 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 thefall 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 (3)

  1. 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.
  2. 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).
  3. 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).
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 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)

* 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)
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)

* 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
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

Patent Citations (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
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)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 261 (M - 514) 5 September 1986 (1986-09-05) *

Cited By (8)

* 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)
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

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