JPS5737619A - Gas burner - Google Patents

Abstract

PURPOSE: To improve the performance of the burner by a method wherein a large number of flame holes, burner ports with flame holding function, a mixing pipe and a pressure equalizing chamber are provided in order to change the flow rate for flame holding in correspondence to the temperature of the premixed gas near the nozzle of the burner, resulting in stabilizing the flames at the flames at the flame holes.

CONSTITUTION: The fuel supplied to a nozzle holder 14 is jetted from the nozzle 15 with the constant pressure P and the primary air is induced in a primary air port 8 due to the ejector effect of the jetting energy of the fuel. The fuel and the primary air, which are flowed in the primary air port 8, are mixed homogeneously with each other in a mixing pipe 9 to form the premixed gas and sent to a distributing chamber and then sent torespective slitted flame holes 2 and 2' to form main flames A detached for every respective main flame hole group 2". On the other hand, flame holding flames B lit at secondary flame holes 5 burn respectively and independently from the main flames to heat the flame roots of the main foames A lit of the slits 2 located at the both ends of every respective main flame hole group 2", resulting in furthering the combustion of the main flames A.

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