FAN FORCED HEATER

• Main Author: SHIGEOKA TAKEHIKO
• Format: Patent
• Language: English
• Published: 06.08.1990
• Subjects: BLASTING; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

PURPOSE:To minimize the quantity of residual unburnt gas generated during combustion shutdown and reduce odor by halting the supply of fuel during said combustion shutdown, actuating an ignition means, maintaining a faint and trace of combustion air capacity, then increasing its air capacity to a great extent. CONSTITUTION:Combustion waste gas flows upward by a combustion cylinder 3 which covers the surrounding surfaces of a burner 2, and it is mixed with an indoor air current from a convection blower 5 inside a duct 4, discharged from a blowoff port 1a, and used for heating service. During combustion shutdown, a combustion blower comes to a halt for exceptionally small time and the air capacity is increased to a great deal again when the combustion gas has been fainted. Therefore, oil supply- based cooling is eliminated and the cooling for the combustion air is minimized. As a result, the temperature of a nozzle 12 rises, which causes liquid fuel to fall in drops easily at the tip of the nozzle 12. The oil drops are dispersed and gasified spontaneously so as to increase the air capacity and produce a large quantity of air. The air is brought into contact with a burner 2 which has been heated to a high temperature by combustion heat and ignited by the heat at the burner or the manipulation of an ignition means, which accelerates the combustion and burns out the fuel including the remaining unburnt gas as well.