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Provided is an orchard heater adapted especially to radiate heat directly to the bole and middle portions of the trees, the heater comprising an upright, generally elongated and cylindrical combustion chamber having formed therein a vertically extending looped main burner, a pilot burner disposed be

Provided is an orchard heater adapted especially to radiate heat directly to the bole and middle portions of the trees, the heater comprising an upright, generally elongated and cylindrical combustion chamber having formed therein a vertically extending looped main burner, a pilot burner disposed beneath the main burner, and a divider plate interposed between the former two burners. The burners are positioned such that the discharge orifice of the main burner lies in the plane of the axis of the combustion chamber and is oriented downwardly at the center of the divider plate. The discharge orifice of the pilot burner, in turn, is oriented upwardly to the bottom of the divider plate, the latter being apertured, typically with louvers which enable communication between the discharge orifices of the two burners. Upon ignition of liquid fuel supplied by the main burner in the chamber, the generated heat is initially radially outwardly directed by the divider plate, this heat being oriented in a horizontal plane. Heat impinging on the chamber wall heats the latter and is directed radially and horizontally outwardly therefrom. Simultaneously, heat energy is conducted upwardly by the chamber wall and this heat, in turn, impinges on a frusto-conical hood positioned over the open top of the combustion chamber. The conical surfaces of the hood, upon being heated to radiation point, directs the heat energy radially outwardly and upwardly with respect to the axis of the heater. In addition, the conical surfaces of the hood function to direct ascending exhaust gases radially downwardly.

대표청구항 ▼

A heater for use in combination with a fuel source comprising: a combustion chamber having an enclosing side wall, said combustion chamber having a longitudinal center axis; burner means fixedly located within said chamber spaced from said side wall effective to ignite fuel from said fuel source pro

A heater for use in combination with a fuel source comprising: a combustion chamber having an enclosing side wall, said combustion chamber having a longitudinal center axis; burner means fixedly located within said chamber spaced from said side wall effective to ignite fuel from said fuel source producing heated gases; first deflecting means fixedly mounted within said combustion chamber to direct said heated gases transversely to said longitudinal center axis and against said side wall to thereby heat the said side wall, said heat is to then be radiated into the ambient; second deflecting means connected with said combustion chamber located to encounter said heated gases being discharged from said combustion chamber, said second deflecting means having an encasing side wall, said encasing side wall being located about a portion of said said enclosing side wall, said encasing side wall being spaced from said enclosing side wall, heat being radiated from said second deflecting means in an outward direction into the ambient; said burner means comprises a main burner formed of an elongated member which includes a looped portion terminating in a discharge orifice, said discharge orifice being located on said longitudinal center axis; and said burner means further comprises a pilot burner, said first deflecting means being located between said main burner and said pilot burner.