Fuel injector for a liquid fuel burner
AssigneeNew Power Concepts LLC
InventorsDean L. Kamen, Christopher C. Langenfeld, Michael Norris
Life of this patent
Estimating the term…
Abstract
A fuel injector for a liquid fuel burner that provides for large turn-down ratios and low firing rates. The fuel injector has a fast acting valve to provide a pulsed flow of fuel from a fuel supply and a nozzle coupled to the valve for receiving and atomizing the pulsed flow of fuel. The pulse of atomizing fuel is injected into the throat of a burner. A fuel controller coupled to the fuel supply and the fuel injector governs the rate of fuel delivery by controlling the duration and frequency of an opening period of the fast acting valve.
Claims14
A liquid fuel burner for combusting a fuel from a fuel supply and air from an air supply, the fuel and air combined to form a fuel-air mixture, the liquid fuel burner comprising:
- a. a fuel injector for injecting the fuel from the fuel supply into the air in a throat of the burner so that the fuel and air mix forming a fuel-air mixture, the fuel injector including:
- i) a fast acting valve to provide a pulsed flow of fuel;
- and
- ii) a nozzle coupled to the valve for receiving and atomizing the pulsed flow of fuel;
- b. a combustion chamber coupled to the throat of the burner for receiving the fuel-air mixture, the combustion chamber having an igniter to ignite the fuel-air mixture;
- and
- c. a fuel controller coupled to the fuel supply and the fuel injector, for governing a rate of fuel delivery by controlling the duration of an opening period of the valve.
Dependencies are inferred from the claim text.