Patent ID: 9657946
Date: 2017-05-23
CPC Classifications: F23N

Claim:
1. A burner control system for heating, ventilating and air condition (HVAC) comprising: a combustion chamber; an air channel having an output coupled to the combustion chamber; a fuel channel having an output coupled to the combustion chamber; a bypass channel having a first end connected to one or more of the air channel and the fuel channel and a second end coupled to the combustion chamber; an air mover coupled to the air channel; a fuel valve coupled to an input of the fuel channel; a first sensor configured to sense a measure in the air channel; a second sensor configured to sense a measure in the fuel channel; a third sensor configured to sense a measure in the combustion chamber; a forth sensor having a port connected to the bypass channel; a controller connected to the first sensor, the second sensor, the third sensor, and the fourth sensor; wherein the controller receives a signal from each of the first sensor, the second sensor, the third sensor, and the fourth sensor indicating a magnitude of a parameter sensed by the respective sensor; and wherein the controller sends a signal to a control mechanism to adjust an amount of fuel provided to the fuel channel and/or to adjust an amount of air provided to the air channel based, at least in part, on the signal from the fourth sensor, so as to cause the parameter to approach a predetermined magnitude for achieving a certain fuel to air ratio of a fuel air mixture in the combustion chamber.