WO1995008738A1 - Brûleur a gaz a chapeau hermetique et a alimentation en air secondaire integree - Google Patents

Brûleur a gaz a chapeau hermetique et a alimentation en air secondaire integree Download PDF

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Publication number
WO1995008738A1
WO1995008738A1 PCT/US1994/010414 US9410414W WO9508738A1 WO 1995008738 A1 WO1995008738 A1 WO 1995008738A1 US 9410414 W US9410414 W US 9410414W WO 9508738 A1 WO9508738 A1 WO 9508738A1
Authority
WO
WIPO (PCT)
Prior art keywords
burner
secondary air
air inlet
sealed
fuel
Prior art date
Application number
PCT/US1994/010414
Other languages
English (en)
Inventor
James Rollins Maughan
Original Assignee
General Electric Company
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 General Electric Company filed Critical General Electric Company
Priority to JP7509837A priority Critical patent/JPH08504030A/ja
Priority to EP94928131A priority patent/EP0668980A1/fr
Publication of WO1995008738A1 publication Critical patent/WO1995008738A1/fr
Priority to KR1019950701957A priority patent/KR950704648A/ko

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
    • 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
    • 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

Definitions

  • This invention relates to gas range burners having a sealed top and an integrated secondary air supply.
  • Such structures of this type generally, supply secondary air to the flame through additional porting in the burner without compromising the cleanability of the burner.
  • the sealed-top design of spill-proof burners on gas cooking appliances offers the advantage of cleanability by preventing spills and drainage underneath the cook top.
  • the sealed-top design also prevents necessary secondary air from approaching the flame, and, equally important, greatly reduces the stability of the burner to disturbances in the surrounding air. This is because upon sudden motion of an oven or cabinet door an undesirable vacuum is created at the burner ports due to construction of the sealed-top design. This vacuum can cause the flame to be drawn back into the burner port, thus causing extinction-.
  • the sealed top design can reduce airflow " to the flame, thereby causing undesirable carbon monoxide (CO) emissions. Therefore, a more advantageous burner, then, would be presented if the necessary secondary air could be supplied to the flame without compromising the cleanability of the burner.
  • CO carbon monoxide
  • this invention fulfills these needs by providing a sealed-top burner, comprising a cooktop means, a base means located adjacent to said cooktop means, a fuel inlet means located adjacent to said base means, a first air inlet means located adjacent to said fuel inlet means and said base means, a second air inlet means located substantially on said base means, and a cap means located at a predetermined distance away from said base means to provide a burner port means such that said burner port means is substantially located above said cooktop means.
  • the base means includes a splitter ring. Also, the first air inlet means is the primary air inlet means. Finally, the second air inlet means is the secondary air inlet.
  • secondary air is supplied to the flame without compromising the cleanability of the burner.
  • the preferredTburner offers the following advantages: easy cleanability; reduced CO emissions; increased flame stability; improved secondary air supply; good durability; good economy; and high strength for safety.
  • these factors of cleanability, CO emissions, flame stability, and secondary air supply are optimized to an extent that is considerably higher than heretofore achieved in prior, known burners.
  • Figure 1 is a side plan view of a sealed-top gas range burner with an integrated secondary air supply, according to the present invention
  • Figure 2 is a side plan view of the sealed-top gas range burner, taken along lines 2-2 of Figure 1, according to the present invention.
  • Figure 3 is a side plan view of the sealed- top gas range burner, taken along lines 3-3 of Figure 1, according to the present invention.
  • Figure 4 is a graphical illustration of reduced CO emission when the present invention is employed with CO, in ppm, plotted against burner input rate, in BTU/hr.
  • Burner 2 includes, in part, conventional cook top 4, base 6, splitter ring 8, conventional cap 10, fuel port 12, and air port 14.
  • Base 6 and splitter ring 8, preferably, are constructed of any suitable heat resistant material.
  • burner 2 includes fuel orifice 16 and secondary air inlet 18.
  • splitter ring 8 is raised above secondary air inlet 18 such that secondary air 24 can be provided into burner port 14 along the direction of arrow B while fuel is introduced into burner 2 by fuel orifice 16 along the direction of arrow A.
  • splitter ring 8 substantially covers over secondary air inlet 18 to prevent secondary air from entering into fuel port 12.
  • splitter ring 8 covers over secondary air inlet 18, only fuel from fuel orifice 16 and primary air 22 enter into fuel port 12 along the direction of arrow C.
  • secondary air 24 is provided by integrating the burner ports 14 with secondary air inlet 18 that are dedicated to supplying air from underneath cooktop 4. This is made possible through the use of splitter ring 8 and by separating burner cap 10 from base 6.
  • Fuel is emitted from fuel orifice 16 along the direction of arrow A.
  • Primary air 22 ( Figure 3) is entrained, mixed and burned with fuel in a conventional manner, then exits the burner through ports 12.
  • additional air inlets 18 in the bottom of burner 2 allow secondary air 24 to enter and pass through burner 2 to the flame (not shown) without mixing with the fuel ( Figure 2).
  • This secondary air 24 which enters through secondary air inlet 18 and is emitte ⁇ £through burner port 14 along the direction of arrow B greatly improves the combustion efficiency of burner 2 while inlets 18 improve the stability of the burner 2.
  • Air ports 14 are in the same plane as fuel ports 12 and are above the plane of cooktop 4. This will prevent large spills from draining under burner 2.
  • the removable splitter ring 8 allows any splashes which enter either through fuel port 12 or air port 14 to be easily cleaned.
  • Figure 4 illustrates the CO emissions from a conventional sealed-top burner and the sealed-top burner of the present invention. As can be seen in Figure 4, the CO emissions from the conventional burner are higher than the CO emissions from the burner of the present invention. This is due to the secondary air ports 18 between the fuel ports 12 that feed secondary air 24 from under the cooktop directly into the flame. It is to be understood that at very low inputs, secondary air entrainment is unimportant and CO is unaffected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

L'invention se rapporte à des brûleurs de cuisinière à gaz comprenant un chapeau hermétique et une alimentation en air secondaire intégrée. Des structures de ce type alimentent généralement la flamme en air secondaire sans affecter les possibilités de nettoyage du brûleur.
PCT/US1994/010414 1993-09-23 1994-09-14 Brûleur a gaz a chapeau hermetique et a alimentation en air secondaire integree WO1995008738A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7509837A JPH08504030A (ja) 1993-09-23 1994-09-14 一体の２次空気供給源を有している上部密封形ガス燃焼器
EP94928131A EP0668980A1 (fr) 1993-09-23 1994-09-14 Br leur a gaz a chapeau hermetique et a alimentation en air secondaire integree
KR1019950701957A KR950704648A (ko) 1993-09-23 1995-05-16 2차 공기 공급원이 합체된 상부밀폐형 가스버너(Sealed-Top Gas Burner With Integrated Secondary Air Supply)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12570793A 1993-09-23 1993-09-23
US08/125,707 1993-09-23

Publications (1)

Publication Number Publication Date
WO1995008738A1 true WO1995008738A1 (fr) 1995-03-30

Family

ID=22421027

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/010414 WO1995008738A1 (fr) 1993-09-23 1994-09-14 Brûleur a gaz a chapeau hermetique et a alimentation en air secondaire integree

Country Status (4)

Country Link
EP (1) EP0668980A1 (fr)
JP (1) JPH08504030A (fr)
KR (1) KR950704648A (fr)
WO (1) WO1995008738A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267586B1 (en) * 2000-05-05 2001-07-31 Beckett Gas, Inc. Low NOx burner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501207A (en) * 1948-09-29 1950-03-21 Columbia Burner Company Gas burner head having peripheral secondary air supply
GB715036A (en) * 1950-07-05 1954-09-08 Willy Homann Improvements in or relating to cooking positions for gas ranges or cookers
JPS58150706A (ja) * 1982-03-03 1983-09-07 Atago Seisakusho:Kk ブラストバ−ナ−
JPS63251726A (ja) * 1987-04-09 1988-10-19 Matsushita Electric Ind Co Ltd ガスこんろ
EP0554511A1 (fr) * 1992-02-08 1993-08-11 Elektro- und Gas-Armaturen-Fabrik GmbH Brûleur à gaz
EP0581655A1 (fr) * 1992-07-28 1994-02-02 Compagnie Europeenne Pour L'equipement Menager "Cepem" Appareil de cuisson à gaz muni de brûleurs à gaz atmosphérique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501207A (en) * 1948-09-29 1950-03-21 Columbia Burner Company Gas burner head having peripheral secondary air supply
GB715036A (en) * 1950-07-05 1954-09-08 Willy Homann Improvements in or relating to cooking positions for gas ranges or cookers
JPS58150706A (ja) * 1982-03-03 1983-09-07 Atago Seisakusho:Kk ブラストバ−ナ−
JPS63251726A (ja) * 1987-04-09 1988-10-19 Matsushita Electric Ind Co Ltd ガスこんろ
EP0554511A1 (fr) * 1992-02-08 1993-08-11 Elektro- und Gas-Armaturen-Fabrik GmbH Brûleur à gaz
EP0581655A1 (fr) * 1992-07-28 1994-02-02 Compagnie Europeenne Pour L'equipement Menager "Cepem" Appareil de cuisson à gaz muni de brûleurs à gaz atmosphérique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 45 (M - 792) 2 February 1989 (1989-02-02) *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 271 (M - 260)<1416> 3 December 1983 (1983-12-03) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267586B1 (en) * 2000-05-05 2001-07-31 Beckett Gas, Inc. Low NOx burner

Also Published As

Publication number Publication date
KR950704648A (ko) 1995-11-20
JPH08504030A (ja) 1996-04-30
EP0668980A1 (fr) 1995-08-30

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