IE34466L - Gas-fired boilers - Google Patents

Gas-fired boilers

Info

Publication number
IE34466L
IE34466L IE701058A IE105870A IE34466L IE 34466 L IE34466 L IE 34466L IE 701058 A IE701058 A IE 701058A IE 105870 A IE105870 A IE 105870A IE 34466 L IE34466 L IE 34466L
Authority
IE
Ireland
Prior art keywords
flame
pilot
causes
burner
valve
Prior art date
Application number
IE701058A
Other versions
IE34466B1 (en
Original Assignee
Wemac Fa
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 Wemac Fa filed Critical Wemac Fa
Publication of IE34466L publication Critical patent/IE34466L/en
Publication of IE34466B1 publication Critical patent/IE34466B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements

Abstract

1320578 Gas heaters WEMAC 17 Aug 1970 [15 Aug 1969] 39624/70 Headings F4F and F4T To prevent unburnt gaseous fuel escaping from the flame ports 16r of the tubes 16 of the main burner assembly 13 of a boiler or heater, a flame sensor 25 causes the main valve 27 to open only when a multi-port pilot burner 21, which extends across the main burner tubes, is lit, and causes the valve 27 to close if the main burner flame is extinguished, gas flowing to the pilot burner only for a period predetermined by a timer 21a. As shown in Fig. 5 a signal from a thermostat (not shown) closes an operating control completing a circuit which causes pilot valve 20 to open, activates the mechanism M of burner 21a, and causes the electrical igniter 18 to ignite the gas. The flame sensor 25, which is sensitive to ultra-violet radiation, is activated by the pilot flame, and the amplified signal from it causes the valve 27 to open, allowing gas to flow to the main burner to be ignited by the pilot flame. After the predetermined time (for example 10 seconds) the timer causes the pilot vave 20 to close, and simultaneously opens the vaves 27a, 27b, allowing gas to flow to the auxiliary burner assemblies 12, 14, flame being propagated to them from the main burner assembly 13 by bridging nipples 32, 33. Due to its positioning, shown in Fig. 1, the sensor 25 senses the presence of either the main burner flame or the pilot flame, so that if after the pilot flame is extinguished the main flame should also be extinguished, the valve 27 is closed. [GB1320578A]
IE1058/70A 1969-08-15 1970-08-14 Boilers and heaters IE34466B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85507069A 1969-08-15 1969-08-15

Publications (2)

Publication Number Publication Date
IE34466L true IE34466L (en) 1971-02-15
IE34466B1 IE34466B1 (en) 1975-05-14

Family

ID=25320267

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1058/70A IE34466B1 (en) 1969-08-15 1970-08-14 Boilers and heaters

Country Status (9)

Country Link
US (1) US3617159A (en)
AT (1) AT311529B (en)
BE (1) BE754895A (en)
CH (1) CH528052A (en)
DE (1) DE2040745A1 (en)
FR (1) FR2058110A5 (en)
GB (1) GB1320578A (en)
IE (1) IE34466B1 (en)
NL (1) NL7011811A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182764B (en) * 1985-11-12 1989-10-04 British Gas Corp Operation of a pulse firred burner
US4887959A (en) * 1988-11-17 1989-12-19 Rheem Manufacturing Company Gas furnace with improved ignition
FR2771798B1 (en) * 1997-12-02 1999-12-31 Air Liquide OXY-FUEL BURNER
US20070006865A1 (en) 2003-02-21 2007-01-11 Wiker John H Self-cleaning oven
US8087407B2 (en) 2004-03-23 2012-01-03 Middleby Corporation Conveyor oven apparatus and method
US9585400B2 (en) 2004-03-23 2017-03-07 The Middleby Corporation Conveyor oven apparatus and method
US7494337B2 (en) * 2004-04-22 2009-02-24 Thomas & Betts International, Inc. Apparatus and method for providing multiple stages of fuel
US7726386B2 (en) * 2005-01-14 2010-06-01 Thomas & Betts International, Inc. Burner port shield
WO2009075848A1 (en) * 2007-12-11 2009-06-18 Garland Commercial Industries Llc Energy efficient char-broiler
US8839714B2 (en) 2009-08-28 2014-09-23 The Middleby Corporation Apparatus and method for controlling a conveyor oven
AU2017286560B2 (en) 2016-06-14 2023-03-09 The Middleby Corporation Convection conveyor oven manifold and damper system
US10330329B2 (en) * 2016-08-05 2019-06-25 Greenheck Fan Corporation Indirect gas furnace

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516504A (en) * 1950-07-25 Safety control and pilot indicator
US1404783A (en) * 1920-11-15 1922-01-31 Mckee Carolyn Burner for gas-stove ovens
US1836268A (en) * 1927-03-14 1931-12-15 Andrew E Carlsen Lighter for burners
US2072034A (en) * 1932-05-16 1937-02-23 Patrol Valve Company Gas range lighter and control
US2087433A (en) * 1932-11-01 1937-07-20 Reconstruction Finance Corp Automatic oven lighter for gas stoves
US2388124A (en) * 1942-11-19 1945-10-30 Ralph T Brackett Burner control
US2529740A (en) * 1946-08-09 1950-11-14 Gen Controls Co Safety control system for fluid fuel burners
US2839130A (en) * 1956-06-13 1958-06-17 Clairdon Inc Photoelectric control unit for oil burners and the like
US3092168A (en) * 1959-08-06 1963-06-04 Smith Corp A O Cross lighter for a gas burner assembly
US3395968A (en) * 1967-02-13 1968-08-06 Honeywell Inc Burner control apparatus

Also Published As

Publication number Publication date
DE2040745A1 (en) 1971-02-25
NL7011811A (en) 1971-02-17
BE754895A (en) 1971-01-18
IE34466B1 (en) 1975-05-14
US3617159A (en) 1971-11-02
CH528052A (en) 1972-09-15
AT311529B (en) 1973-11-26
GB1320578A (en) 1973-06-13
FR2058110A5 (en) 1971-05-21

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