JPS55140015A - Combustion device - Google Patents

Abstract

PURPOSE: To improve combustion characteristics and enlarge a stable area of the combustion by a method wherein auxiliary flame ports are provided around a main flame port ejecting mixture of primary air and fuel gas, further, secondary air nozzles are provided at the main flame port portion.

CONSTITUTION: Liquid fuel supplied on a cone 19 is moved in direction toward larger diameter by a centrifugal force of the cone 19 and is dispersed into an outer peripheral direction of a revolving plate 20 at an outer peripheral end thereof, thereafter, is divided into small parts by mixing vanes 24 of a revolving mixing plate 21, is vaporized and flown to an inner peripheral surface of a vaporizing cylinder 15, thus, is changed into vaporized fuel instantly. On the other hand, a flow of gas mixed with air being sent into the vaporizing cylinder 15 from a primary air inlet 12 is passed through an opening 33 of a head body 26, openings 34 of a rectifying plate 27, a porous flame port plate 28, a main flame port 35 of a flame keeping plate 29 and auxiliary flame ports 37. When the vaporized fuel is ignited by an ignition electrode 38 here, a main flame a of blue flame at a burner head 25 and auxiliary flames b are produced. Air from a secondary air nozzle 30 is sent into a center of the main flame a and is mixed smoothly with the burning flame.

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