Patent ID: 6786717
Filing Date: 2004-09-07
Classification: F23C,F23D

Abstract:
A combustion apparatus comprising:at least one main burner port for jetting and burning a thin mixture of a fuel gas; at least one auxiliary burner port for jetting and burning a thick mixture of the fuel gas that is thicker therein than in the thin mixture; an air intake for introduction of air or the thin gas mixture; a fuel intake for introduction of the air and the thick gas mixture; a thin gas passage for supplying the main burner port with the thin gas mixture; a thick gas passage for supplying the auxiliary burner port with the thick gas mixture; the air intake communicating with the thin gas passage; and the fuel intake communicating with the thick gas passage, wherein the thick gas passage surrounds in part a portion of the thin gas passage, and the portion of this passage has at least one supplementary gas opening formed therein, so that an amount of the thick gas mixture flowing through the thick gas passage will enter the thin gas passage through the supplementary gas openings.