초록 ▼

A heater for orchards and the like includes a stackable, heat transmitting, upright housing. A fuel burner is supported in the housing near a lower end thereof and includes an air inlet chamber having an annular, upwardly directed outlet at the periphery of a fuel dispersing plate and air flows thro

A heater for orchards and the like includes a stackable, heat transmitting, upright housing. A fuel burner is supported in the housing near a lower end thereof and includes an air inlet chamber having an annular, upwardly directed outlet at the periphery of a fuel dispersing plate and air flows through the outlet under pressure in an upward direction and with a spinning motion to vaporize fuel and convey it to a combustion zone for turbulent, substantially pollution-free combustion of the fuel. The burner may also be used with conventional orchard heater housings to provide substantially pollution-free heating of orchards and the like.

대표청구항 ▼

A substantially pollution-free heater for orchards and the like to prevent freeze damage to crops, comprising an upright, open-ended, stackable, heat-transmitting housing having air inlet ports in a lower side wall portion thereof and heat outlet ports in an upper side wall portion thereof, burner m

A substantially pollution-free heater for orchards and the like to prevent freeze damage to crops, comprising an upright, open-ended, stackable, heat-transmitting housing having air inlet ports in a lower side wall portion thereof and heat outlet ports in an upper side wall portion thereof, burner means supported in the housing near the lower end of the housing and including an elongate body with an upper end and a lower end and having a fuel supply passage extending longitudinally therethrough and opening at one end thereof axially outwardly through the upper end of the body, said fuel supply passage extending at its other end laterally outwardlY through the side of the body and connected with a source of fuel; a generally dish-shaped air deflector plate supported on the body near the upper end thereof; a fuel dispersing plate supported on the upper end of the body in spaced relation to the air deflector plate and defining an air inlet chamber therewith, the air deflector plate having an upwardly directed side wall extending adjacent and spaced from the peripheral edge of the fuel dispersing plate and defining therewith an annular air outlet from the air inlet chamber; an air inlet to the chamber directed circumferentially thereinto to impart a swirling motion to air in the chamber, whereby air exiting the chamber is caused to spin to thus impart turbulence to the flow of air and fuel entrained therein and conveys the fuel to a combustion zone whereat substantially pollution-free turbulent combustion occurs.