Patent ID: 6290487
Filing Date: 2001-09-18
Classification: F23D,Y02E

Abstract:
A method for achieving the effect of fuel injection with a gaseous fuel, including natural gas or propane gas, employed as conventional fluid hydrocarbon fuel, which method results in the reduction of fuel density while at the same time significantly increasing the flow velocity of such density reduced fuel, improving combustion dynamics through increasing ignition speed and flame speed during combustion without the danger of causing flame blowout in a combustion mechanism having a defined combustion chamber and a burner therein, comprising:a) providing natural gas or propane gas as fuel for said combustion mechanism;b) directing said fuel beyond the operating valve or one-way check valve within said combustion mechanism through a fuel supply conduit defining a heat exchanger assembly that extends through a heating zone at said combustion mechanism;c) heating the fuel as it passes through said heat exchanger assembly to a general fuel operating temperature level of between 100 degrees Fahrenheit and a temperature just below the fuel's flash point level;d) increasing the volume and reducing the density of said heated fuel to cause a fuel injection effect of high velocity fuel flow in said burner without causing a flame blowout condition;e) maintaining a continuous supply of high velocity fuel flow to said burner in the combustion chamber of said combustion mechanism.