PURPOSE: To restrain the generation of nitrogen oxide, by a method wherein an oxidizing catalyst layer, having a multitide of communicating holes through secondary air ports, is provided above an evaporating chamber, provided with the tip end of a wick at the lower part thereof and a side wall through which a multitude of air holes are bored, while a heat permeating body is provided at the upstream side and an exhaust port is provided at the upper part of the downstream side of the catalyst layer.
CONSTITUTION: Fuel, evaporated from a wick 2, is ascended while being mixed with air, supplied from air holes 4a, in an evaporating chamber 4, however, a part of the fuel forms a flame here and the combustion heat there of a supplied to the wick 2 as the evaporating heat of the fuel. Mixture, flowing out of the evaporating chamber 4, is supplied with the air of sufficient amount at secondary air ports 5 and is ascended after becoming air excessive mixture, however, an oxidizing catalyst layer 6 is provided at the upper part of the evaporating chamber, thereof, it flows to the downstream side (rear surface) through communicating holes 6a while generating catalyst combustion at the upstream side (front surface) mainly. The exhaust gas of combustion is discharged out of an exhaust port 8, provided at the upper part of the rear surface of the oxidizing catalyst layer 6. On the other hand, radiation heat, dissipated from the oxidizing catalyst layer 6 due to heating by the combustion heat, is supplied to the front surface through a glass window 7 provided opposingly.
NISHINO ATSUSHI
SUZUKI JIRO
HOSAKA MASATO
