Furnaces – Fuel feeders – Blower
Patent
1979-09-12
1982-03-09
Yuen, Henry C.
Furnaces
Fuel feeders
Blower
110248, 110261, 110263, 110347, 431352, 431353, 431284, 126 99C, F23D 100
Patent
active
043183557
ABSTRACT:
A heater for burning particulate fuels in which a stream of air carrying combustible particles is injected upward into a combustion chamber (22) between two spaced perforated tubular members (33, 34), the outer member being taller. A deflector (55) located within the outer member and above the inner member causes the stream to flow outward and then upwardly, and helical vanes (139) may be provided between the members. A gun-type oil burner (61) is located below the members for initially heating them and igniting the particles. Particulate fuel is supplied through an auger 70 from a bin 71 which contains springs 77 rotated to prevent bridging or caking of the material. Rotation of the springs and drive of the auger are powered by a common motor 80.
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