초록 ▼

The burner system includes an apertured burner plate with low thermal conductivity which is adapted to be positioned in a closed combustion chamber. A mixing chamber below the combustion chamber has a gas inlet and an air inlet. A fan is operatively arranged in the mixing chamber. A detector provide

The burner system includes an apertured burner plate with low thermal conductivity which is adapted to be positioned in a closed combustion chamber. A mixing chamber below the combustion chamber has a gas inlet and an air inlet. A fan is operatively arranged in the mixing chamber. A detector provides an electric detection signal which varies with the composition of the burnt gas in the combustion chamber. The detection signal is applied to the input of an electronic control unit, which in response to the detection signal produces at least one output signal. Control means are responsive to the output signal for controlling the air-gas mix supplied to the mixing chamber.

대표청구항 ▼

A gas burner and control system therefor, which comprises (a) means forming a closed combustion chamber having an inlet side and an outlet side, (b) means forming a mixing chamber on the inlet side of said closed combustion chamber, (c) a ceramic burner plate of low thermal conductivity, having dist

A gas burner and control system therefor, which comprises (a) means forming a closed combustion chamber having an inlet side and an outlet side, (b) means forming a mixing chamber on the inlet side of said closed combustion chamber, (c) a ceramic burner plate of low thermal conductivity, having distributed apertures therethrough, located at the inlet side of said closed combustion chamber, (d) valve means for supplying combustion gas to said mixing chamber, (e) controllable air supply means for supplying combustion air to said mixing chamber to be mixed with said combustion gas in controllable ratios of gas to air, (f) a redox detector mounted within said closed combustion chamber for detecting the composition of products of combustion in said closed chamber, (g) said redox detector being of the type which varies in electrical resistance as a function of the composition of the products of combustion, (h) the arrangement of said redox detector and said closed combustion chamber being such as to provide for relatively constant temperature operation of said redox detector with varying loads in said combustion chamber, and (i) control circuit means responsive to changes in resistance of said redox detector to controllably vary the gas and/or air supply to said mixing chamber to maintain efficient combustion therein.