Patent ID: 6718968
Filing Date: 2004-04-13
Classification: F23D,F23L,F24D

Abstract:
A burner and fan enclosure for an infrared heater comprising:a generally rectangular low pressure housing having a top wall, a bottom wall, opposed side walls and spaced removable, rectangular side panels extending between said top, bottom and side walls; an air inlet in one of said side walls; a burner outlet in the other of said side walls; a high pressure housing within said low pressure housing and having a side aligned with said burner outlet; an elongated burner tube within said high pressure housing and having opposed ends, one end extending through said burner outlet; a turbulator having plural openings therein arranged about a generally central opening, said turbulator being located at or integral with said other side wall with said generally central opening receiving and supporting one end of said burner tube; a generally vertical fuel manifold within said high pressure housing adjacent the other end of said burner tube; a fuel orifice in fluid communication with said manifold and aligned with said other end of said burner tube for directing fuel thereinto; a centrifugal fan within said low pressure housing and having a volute with a generally central inlet in fluid communication with the interior of said low pressure housing and a discharge outlet mounted to said high pressure housing and in fluid communication with the interior thereof in the vicinity of said manifold and upstream of said orifice; a gas control valve within said low pressure housing and having an outlet aligned with said manifold; a rotary union interconnecting said control valve outlet and said manifold; said low pressure housing having side panel flanges on said top and side walls in or against which said side panels may nest or abut; and a lock on each side panel near a lower end thereof for removably locking the respective side panel to the low pressure housing.