US 6,971,235 B2 · Evaporative burner

Abstract

An evaporative burner that includes an igniter assembly, a swirler, an evaporation chamber, and a reverse throat. The reverse throat has raised ends that protrude into the evaporation chamber. The reverse throat in combination with the evaporation chamber and the swirler, facilitate the recirculation of air in the evaporation chamber such that a flame is stabilized near the evaporation chamber walls. This flame gradually evaporates the fuel in the lining of the evaporation chamber. The fuel-air mixture results in a steady and uniformly distributed flame in the combustion chamber. This flame can heat uniformly the walls of the combustion chamber, and thus be applicable for high efficiency and low emissions applications. Furthermore, this burner can start and reach full burner power rapidly.

Claims19

Dependent claims

An evaporative burner for combusting fuel from a fuel supply and air from an air supply, the fuel and air combined to form a fuel-air mixture, the evaporative burner comprising:

a. a swirler for feeding air into the burner;
b. an evaporation chamber connected to the swirler for receiving air and fuel, the evaporation chamber including a socket for accommodating an igniter assembly, the evaporation chamber characterized by inside walls;
c. an igniter assembly coupled to the evaporation chamber, the igniter including an air port and a fuel port, the assembly for igniting the fuel-air mixture in the evaporation chamber;
and
d. a reverse throat coupled to the evaporation chamber with raised ends, the raised ends reaching into the evaporation chamber.

2 more elements

Dependencies are inferred from the claim text.

Evaporative burner

Life of this patent

Evaporative burner

Life of this patent

Abstract

Claims19