GB1251505A - - Google Patents

Info

Publication number
GB1251505A
GB1251505A GB1251505DA GB1251505A GB 1251505 A GB1251505 A GB 1251505A GB 1251505D A GB1251505D A GB 1251505DA GB 1251505 A GB1251505 A GB 1251505A
Authority
GB
United Kingdom
Prior art keywords
rate
air
set value
bridge
controlled
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
Application number
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 filed Critical
Publication of GB1251505A publication Critical patent/GB1251505A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/187—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/26—Fuel nozzles
    • F23N2235/28—Spray fuel nozzles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

1,251,505. Burner controls. K. ZENKNER. 6 Dec., 1968 [6 Nov., 1967], No. 52613/68. Heading F4T. The performance of a gas or oil burner 8 having a single motor 4 driving a fuel supply pump 1 and a fan 5 for combustion air is continuously regulated by measuring the actual rate of air or fuel supply, comparing it with a set value corresponding to a desired combustion rate so that in response to deviations from the set value the rate is correctively adjusted, and adjusting the other rate of fuel or air supply to a value dependent on the measured rate to maintain a predetermined fuel/air mixture. In Fig. 1, the output of an air flow sensor 14 is compared with a set value in a first self balancing Wheatstone bridge which is coupled to a thyristor operated speed control unit for the motor 4 to correct for any deviations from the desired air flow rate. The burner is of the return flow type and the rate of oil flow is sensed at 19 as a pressure differential across the burner head 8 and is controlled by a valve 11 leading to an oil container or sump 12. The output of unit 19 is compared in a further self-balancing Wheatstone bridge with a reference value and a signal is derived to control the position of a thyristor controlled servomotor 13 operating the valve 11. A third self-balancing Wheatstone bridge has one arm associated with the set value arm of the first bridge and an arm associated with the reference value arm of the second bridge, so that the reference value changes with the set value to maintain the air/ fuel ratio. The set rate may be altered by manual or remote control of a unit 23 and by a temperature sensor 25, 26, associated with the third bridge. The sensor 14 may be a Prandth or Bourdon tube, a hot wire anemometer or a weathervane-like body operating a potentiometer, for example. In other embodiments, Figs. 3 and 4 (not shown), only one rate e.g. the rate of fuel supply, is measured and controlled by a Wheatstone bridge and servomotor arrangement, and the other rate is controlled via gearing driven by the same servomotor to maintain a constant air/fuel ratio. As described the air flow is controlled by a movable flap, or by a grill of tiltable flaps, or by a series of concentric annular flaps the external edge of each flap being connected to the internal edge of the succeeding flap so that movement of the central flap causes all the flaps to tilt, Fig. 5 (not shown).
GB1251505D 1967-11-06 1968-11-06 Expired GB1251505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671551993 DE1551993A1 (en) 1967-11-06 1967-11-06 Process for the continuous regulation of the output of oil or gas burners and device for the implementation of this process

Publications (1)

Publication Number Publication Date
GB1251505A true GB1251505A (en) 1971-10-27

Family

ID=5676867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251505D Expired GB1251505A (en) 1967-11-06 1968-11-06

Country Status (5)

Country Link
US (1) US3592574A (en)
DE (1) DE1551993A1 (en)
FR (1) FR1592280A (en)
GB (1) GB1251505A (en)
SE (1) SE368267B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756221A (en) * 1972-09-14 1973-09-04 E Patycola Control apparatus for gas burners
US3936003A (en) * 1973-12-03 1976-02-03 Raytheon Company Multiport high density burner
US4050878A (en) * 1974-05-16 1977-09-27 Autotronic Controls Corporation Electronic carburetion system for low exhaust emissions of internal combustion engines
FR2296146A1 (en) * 1974-12-24 1976-07-23 Saunier Duval FORCE DRAFT GAS BOILER REGULATION DEVICE
US4033712A (en) * 1976-02-26 1977-07-05 Edmund D. Hollon Fuel supply systems
FR2479417A1 (en) * 1980-03-26 1981-10-02 Cem Comp Electro Mec Monitor for liq. fuelled burner responding to air flow - uses propeller in combustion air stream to drive generator whose output is compared to activate solenoid valves in fuel lines
JPS56151813A (en) * 1980-04-28 1981-11-25 Hitachi Ltd Proportional burning method and apparatus therefor
US4329138A (en) * 1980-06-12 1982-05-11 Walter Kidde And Company, Inc. Proving system for fuel burner blower
WO1984001809A1 (en) * 1982-10-29 1984-05-10 Vaillant Joh Gmbh & Co Burner supplied with fluid fuel
US4781575A (en) * 1983-12-01 1988-11-01 Gte Products Corporation Temperature compensator for pressure operated fuel regulator
JPS62107241U (en) * 1985-12-24 1987-07-09
US5314300A (en) * 1992-01-13 1994-05-24 Fasco Industries, Inc. Noise control device for centrifugal blower
US7004749B2 (en) * 2002-08-29 2006-02-28 Noritz Corporation Combustion apparatus
DE10349344B3 (en) * 2003-10-23 2005-06-30 Ebm-Papst Landshut Gmbh Blower with laminar element in front of the suction opening

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA568263A (en) * 1958-12-30 Paul L. Wachendorfer, Sr. System for maintaining the correct supply of air for burning a gas of varying composition
NL227750A (en) * 1958-03-12
DE1170102B (en) * 1958-07-07 1964-05-14 W Oertli A G Automat Feuerunge Device for regulating the combustion air flow supplied to the burner head of an oil burner as a function of the oil quantity supplied to the burner head per unit of time
NL280005A (en) * 1962-06-21
CH400427A (en) * 1962-12-04 1965-10-15 Sulzer Ag Method and device for operating a combustion system charged with at least two different flowable fuels, in particular for a steam power plant or a gas turbine system

Also Published As

Publication number Publication date
FR1592280A (en) 1970-05-11
US3592574A (en) 1971-07-13
DE1551993A1 (en) 1970-04-02
SE368267B (en) 1974-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees