Patent ID: 7048536
Filing Date: 2006-05-23
Classification: F23N

Abstract:
1. In a fuel-air pressure ratio combustion control system for maintaining a selected fuel-air ratio for a combustion apparatus supplied with air at a substantially constant volumetric rate, said control system having a primary valve in the fuel line operated by a pressure regulating electro-hydraulic actuator that has a pressure tap in each of the supplied air, the combustion zone and the fuel line downstream of said primary valve, the improvement of means for adjusting the flow rate of fuel in relation to temperature fluctuations of said air or fuel, which comprises: a. a remote control, secondary valve in the fuel line downstream of said primary valve regulating the flow of fuel; b. a temperature sensor positioned to monitor temperature fluctuations of said air or fuel; and c. a converter connected to receive temperature signals from said sensor and connected to said secondary valve to pass thereto converted temperature signals as adjustments of said secondary valve.