Vaporizing type oil burner

A vaporizing type oil burner comprising:

• a vaporizer pot;
• a fuel vaporization promoting plate made of a thin sheet of porous material and resting on the bottom of said vaporizer pot in a manner to cover the entire area of the bottom;
• an oil feeding device comprising an oil feed pipe extending at its forward end portion thereof through a lower end of a front wall of said vaporizer pot for feeding oil to said vaporizer pot, said oil feeding device being capable of controlling the volume of oil fed to said vaporizer pot;
• an oil diffusing device including at least one oil diffusing passage provided in between the bottom of the vaporizer pot and at least one upwardly directed inclined portion provided to said fuel vaporization promoting plate, said portion being continuous at least in a longitudinal direction and said feed oil pipe communicating at its forward end with said oil diffusing passage so that oil can be diffused through said oil diffusing passage to the entire area of the fuel vaporization promoting plate so that the latter plate may be permeated with oil;
• and
• a primary combustion air supply device for supplying primary air for combustion through upper portions of front and rear walls of said vaporizer pot in such a manner that the primary air for combustion is blown onto the surface of said fuel vaporization promoting plate,
• said fuel vaporization promoting plate being formed with a multitude of pores, with surfaces of said pores functioning as surface means for vaporizing the oil and for receiving the heat of radiation generated by a flame;
• and
• said vaporizer pot being made of a sheet metal and being rectangular in horizontal cross-sectional shape;
• said front and rear walls of said vaporizer pot being formed at corresponding positions with upper and lower inwardly projecting constricted parts;
• and
• said lower constricted parts of the front and rear walls of the vaporizer pot being formed at lower obliquely directed portions thereof with primary combustion air inlet openings of said primary combustion air supply device and at upper obliquely directed portions thereof with secondary combustion air inlet openings through which secondary air is introducted into a compartment above said lower constricted parts of the front and rear walls.