GB814485A - Improvements in control of combustion furnaces - Google Patents

Improvements in control of combustion furnaces

Info

Publication number
GB814485A
GB814485A GB33241/56A GB3324156A GB814485A GB 814485 A GB814485 A GB 814485A GB 33241/56 A GB33241/56 A GB 33241/56A GB 3324156 A GB3324156 A GB 3324156A GB 814485 A GB814485 A GB 814485A
Authority
GB
United Kingdom
Prior art keywords
voltage
resistor
ignition electrode
anode
photo
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
GB33241/56A
Inventor
Christof Walter Burckhardt
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.)
Rheostatic Co Ltd
Original Assignee
Rheostatic Co Ltd
Filing date
Publication date
Application filed by Rheostatic Co Ltd filed Critical Rheostatic Co Ltd
Priority to DER22284A priority Critical patent/DE1146609B/en
Publication of GB814485A publication Critical patent/GB814485A/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
    • F23N2227/00—Ignition or checking
    • F23N2227/28—Ignition circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors

Abstract

814,485. Controlling burners. RHEOSTATIC CO. Ltd. Oct. 31, 1957 [Oct. 31, 1956], No. 33241/56. Class 75(1) The supply valve for an oil burner is controlled by a cold cathode electric discharge tube T the ignition electrode S of which is connected to a photo resistor PR fed from a derived voltage approximately 90 degrees out of phase with the anode voltage. An alternating current supply VI is connected to the anode circuit of the tube T which includes a relay R for control of the fuel. The supply voltage V1 also charges a circuit comprising a capacitor C1 and resistor R1 to give a voltage V2 across the resistor R1 and leading approximately by 90 degrees which is applied through a condenser C2 to the photo-resistor PR and a resistor R2 and so to the ignition electrode S of the discharge tube T. A diode D restores the initial condition to the ignition electrode on each negative half cycle of the voltage V2. After its peak the voltage on the ignition electrode falls away at a rate determined by resistance R3 and only if the photo-resistor PR has a correct intermediate value between a break and a short circuit with the ignition electrode voltage still have a voltage sufficiently high for ignition VS when the anode voltage has risen to the minimum anode voltage VA necessary for firing the tube in the main anode-cathode path.
GB33241/56A 1956-10-31 1956-10-31 Improvements in control of combustion furnaces Expired GB814485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER22284A DE1146609B (en) 1956-10-31 1957-10-29 Oil burner protection circuit

Publications (1)

Publication Number Publication Date
GB814485A true GB814485A (en) 1959-06-03

Family

ID=1743382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33241/56A Expired GB814485A (en) 1956-10-31 1956-10-31 Improvements in control of combustion furnaces

Country Status (1)

Country Link
GB (1) GB814485A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268304B (en) * 1962-06-14 1968-05-16 Kurt Mueller Photoelectric circuit arrangement for monitoring a flame
US6436326B1 (en) 1999-06-15 2002-08-20 Dow Global Technologies Inc. Forming slurry of reactive components and continuously feeding into continuous reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268304B (en) * 1962-06-14 1968-05-16 Kurt Mueller Photoelectric circuit arrangement for monitoring a flame
US6436326B1 (en) 1999-06-15 2002-08-20 Dow Global Technologies Inc. Forming slurry of reactive components and continuously feeding into continuous reactor

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