Importance

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Abstract

A burner nozzle includes a burner tube that extends along a central axis and has an inlet end portion for receiving combustible gas and air. At least one body or chamber has a passageway in communication with the burner tube along the central axis which leads to an elongated outlet end portion. At least one flame-shaping opening is located adjacent the outlet end portion. Each flame-shaping opening may be constructed and arranged effective to elongate (broaden the width of) flame resulting from combustion of the mixture transverse to the central axis to produce efficient heat transfer between the flame and air inside a heat-receiving member disposed downstream of the outlet opening. A flame length reducing member may be used instead of or in addition to the flame-shaping opening and the flame shaping opening may itself reduce flame length. A burner assembly may include a combustion tube in which the burner nozzle is disposed and connected. The burner nozzle is used in a method for broadening and shaping the flame.

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First Claim