EP0104586A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Gas burner control system
Assignee: Honeywell Inc
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Filing: 1983-09-20
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Granted: —
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Expires: 2003-09-20
Abstract
Abstract A gas burning furnace (10) has a burner (13) in which the premixed fuel/air ratio of the burned gas in the burner flame (23) is measured by a flame rod (22) sensing the ionization current. The flame rod (22) is connected to a fuel/air controller (24) which controls the gas (15-25) and primary air (20) to the burner to maintain the maximum flame ionization current which results in an excessive amount of gas to the burner (13). Secondary air (31) is supplied to the combustion chamber to add sufficient oxidant in the combustion chamber (11) to ensure complete combustion (Fig.1).
Inventors
- 👤 Ralph H. Torborg
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 16:41
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/12; F23N5/123; F23N1/00; F23N1/02; F23N1/025; F23N5/003; F23N2225/00; F23N2225/26; F23N2225/30; F23N2233/00; F23N2233/06; F23N2233/08; F23N2235/00; F23N2235/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
208 words
A gas burner control system comprising a) a gas burner (13) mounted in a combustion chamber (11) having an exhaust outlet (12) adapted to be connected to a flue; b) a gas inlet (15) to said burner (13) connected to a gas control (25) adapted to receive gas from a gas source; c) a primary air inlet (20) to said burner (13) for oxidation of said gas; d) a blower (21) for supplying combustion air to said air inlet (20); e) a sensor (22) responsive to the degree of combustion of said gas/air mixture; f) control means (24) connected to said sensor (22) and to said blower (21), controlling the air supply such that complete combustion is maintained characterized by g) using a sensor (22) showing a maximum or minimum output signal at a gas/air ratio which is offset from the ratio of complete combustion; h) the control means (24) controlling the supply of primary air such, that said output signal is maintained at its maximum or minimum value respectively; i) a secondary air inlet (31) to said combustion chamber (11)connected to said blower (21), said secondary air inlet being sized with respect to said primary air inlet (20) to maintain complete combustion in said combustion chamber (11).
Claim 2
Dependent Claim
208 words
A gas burner control system comprising a) a gas burner (13) mounted in a combustion chamber (11) having an exhaust outlet (12) adapted to be connected to a flue; b) a gas inlet (15) to said burner (13) connected to a gas control (25) adapted to receive gas from a gas source; c) a primary air inlet (20) to said burner (13) for oxidation of said gas; d) a blower (21) for supplying combustion air to said air inlet (20); e) a sensor (22) responsive to the degree of combustion of said gas/air mixture; f) control means (24) connected to said sensor (22) and to said blower (21), controlling the air supply such that complete combustion is maintained characterized by g) using a sensor (22) showing a maximum or minimum output signal at a gas/air ratio which is offset from the ratio of complete combustion; h) the control means (24) controlling the supply of primary air such, that said output signal is maintained at its maximum or minimum value respectively; i) a secondary air inlet (31) to said combustion chamber (11)connected to said blower (21), said secondary air inlet being sized with respect to said primary air inlet (20) to maintain complete combustion in said combustion chamber (11).
Claim 3
Dependent Claim
38 words
A system according to claim 1, characterized in that the sensor (22) is a flame rod in the flame of said burner (13) and the control means (24) is responsive to the ionization current of said flame rod.
References Cited (Backward Citations)
No citation records indexed.
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