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US 4,533,315 AGranted
Integrated control system for induced draft combustion
AssigneeHoneywell Inc.
InventorLorne W. Nelson
Life of this patent
Estimating the term…
Abstract
An integrated, closed loop system for controlling the fuel to air ratio in an induced draft combustion chamber which has a control pilot through which a draft is induced so that the fuel to air ratio in the control pilot chamber has a predetermined ratio to the fuel to air ratio in the primary combustion chamber.
Claims6
A system for controlling the fuel to air ratio in an induced draft combustion chamber comprising in combination:
- a combustion chamber;
- a gas fuel burner in said combustion chamber;
- means for supplying fuel to said combustion chamber fuel burner;
- means for inducing a flow of air in said combustion chamber to support combustion of said fuel;
- a control pilot chamber;
- a gas fuel burner in said control pilot chamber
- means for supplying fuel to said control pilot burner;
- means for establishing a proportional ratio between the quantity of fuel fed to the combustion chamber burner and the quantity of fuel fed to said control pilot burner;
- means coupling said control pilot chamber to said means for inducing a flow of air so that a quantity of air drawn through said control pilot chamber is proportional to the quantity of air drawn through said combustion chamber;
- and
- means for controlling the fuel to air ratio in said control pilot chamber.
8 more elements
Dependencies are inferred from the claim text.