CA2684542A1 - Draught-resistant fireplace pilot - Google Patents

Draught-resistant fireplace pilot Download PDF

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Publication number
CA2684542A1
CA2684542A1 CA 2684542 CA2684542A CA2684542A1 CA 2684542 A1 CA2684542 A1 CA 2684542A1 CA 2684542 CA2684542 CA 2684542 CA 2684542 A CA2684542 A CA 2684542A CA 2684542 A1 CA2684542 A1 CA 2684542A1
Authority
CA
Canada
Prior art keywords
burner
gas
pilot igniter
pilot
enclosure
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
CA 2684542
Other languages
French (fr)
Other versions
CA2684542C (en
Inventor
Dan Binzer
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.)
Empire Comfort Systems Canada Inc
Original Assignee
Canadian Heating Products Inc
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 Canadian Heating Products Inc filed Critical Canadian Heating Products Inc
Priority to CA2684542A priority Critical patent/CA2684542C/en
Publication of CA2684542A1 publication Critical patent/CA2684542A1/en
Application granted granted Critical
Publication of CA2684542C publication Critical patent/CA2684542C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F23D14/10—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 elongated tubular burner head
    • F23D14/105—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 elongated tubular burner head with injector axis parallel to the burner head axis
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/07—Roasting devices for outdoor use; Barbecues
    • A47J37/0786—Accessories
    • A47J37/079—Charcoal igniting devices
    • 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
    • F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F23Q9/02—Pilot flame igniters without interlock with main fuel supply
    • F23Q9/04—Pilot flame igniters without interlock with main fuel supply for upright burners, e.g. gas-cooker burners
    • F23Q9/045—Structurally associated with a main-burner
    • 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
    • F24C3/10—Arrangement or mounting of ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00014—Pilot burners specially adapted for ignition of main burners in furnaces or gas turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

A pilot ignition system for an outdoor gas appliance provides a pilot igniter that is isolated from the ambient wind around the burner by physically distancing the pilot igniter from the burners. The distance is overcome by providing a jet of gas to a nozzle slightly upstream of the pilot, the jet of gas being directed toward the burner. The jet of gas is ignited by the pilot resulting in a torch or jet of flame extending from the pilot igniter through the downstream length of an enclosure to the burner. The jet of flame bridges the distance between the pilot igniter and the burner, while the distance itself isolates the pilot light from wind in the vicinity of the burner.

Claims (12)

1. An ignition assembly for an outdoor gas appliance in which a gas burner is substantially exposed to ambient wind, comprising:

an enclosure one end of which has an opening that is adjacent said burner;

a pilot igniter at least partially located within said enclosure at a position that is distal from said opening whereby to substantially isolate said pilot igniter from said ambient wind;

a nozzle for supplying a jet of gas past said pilot igniter and toward said burner, said nozzle being located upstream of said pilot igniter;
whereby when said jet of gas is ignited, there results a jet of flame extending the downstream length of said enclosure to said opening and said burner.
2. An ignition assembly for an outdoor gas appliance in which a gas burner is exposed to ambient wind, comprising:

a pilot igniter that is located a distance away from said burner that effectively isolates said pilot igniter from said wind, and a nozzle for generating a stream of gas past the pilot igniter whereby to create a jet of flame that bridges the distance between said pilot igniter and said burner.
3. The assembly of claim 2 wherein said pilot igniter and said nozzle are located in an elongated enclosure a distal end of which has an opening adjacent said burner, said enclosure acting to contain and direct said jet of flame from said pilot igniter to said burner.
4. The assembly of claim 3 further comprising a first conduit for supplying gas to said pilot igniter and a second conduit distinct from said first conduit for supplying gas to said nozzle.
5. The assembly of claim 4 further comprising a sensor for detecting when said pilot igniter has been lit and a controlled valve for enabling gas supply to said nozzle upon detecting that said pilot igniter has been lit.
6. The assembly of claim 5 wherein:

said elongated enclosure is housed within a second enclosure;

said second enclosure has at least one aperture providing air communication with a source of combustion air; and, the interior of said elongated enclosure is in air communication with the interior of said second enclosure.
7. The assembly of claim 6 wherein air communication with the interior of said second enclosure is provided by an aperture in the side of said elongated enclosure and said pilot igniter extends through said aperture.
8. The assembly of claim 4 further comprising a venturi element interposed between said nozzle and said pilot igniter.
9 9. An outdoor gas burning appliance comprising:

a support structure for supporting at least a gas burner; and, the assembly of claim 6 contained within said support structure.
10. The appliance of claim 9 wherein said support structure defines a substantially enclosed air cavity and said assembly of claim 6 is in air communication with said air cavity.
11. A method of igniting the burner of an outdoor gas appliance in which said burner is exposed to ambient wind, comprising:

locating a pilot igniter a distance away from said burner that effectively isolates said pilot igniter from said wind, and generating a pressurized stream of gas past the pilot igniter and creating a jet of flame that bridges the distance between said pilot igniter and said burner.
12. The method of claim 6 further comprising a first gas supply to said pilot igniter and a second gas supply for generating said pressurized stream of gas, and wherein said step of generating is undertaken upon a sensor detecting successful lighting of said pilot igniter.
CA2684542A 2009-11-05 2009-11-05 Draught-resistant fireplace pilot Active CA2684542C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2684542A CA2684542C (en) 2009-11-05 2009-11-05 Draught-resistant fireplace pilot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2684542A CA2684542C (en) 2009-11-05 2009-11-05 Draught-resistant fireplace pilot

Publications (2)

Publication Number Publication Date
CA2684542A1 true CA2684542A1 (en) 2011-05-05
CA2684542C CA2684542C (en) 2012-09-25

Family

ID=43971771

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2684542A Active CA2684542C (en) 2009-11-05 2009-11-05 Draught-resistant fireplace pilot

Country Status (1)

Country Link
CA (1) CA2684542C (en)

Also Published As

Publication number Publication date
CA2684542C (en) 2012-09-25

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Legal Events

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