STRUCTURE OF COMBUSTION CHAMBER OF HOT AIR GENERATOR

PURPOSE: To realize the structure of a combustion chamber, excellent in combustion efficiency with low noise, and contrive the miniaturization of a hot air generator, for example, of a liquid fuel combustion type, and the like. CONSTITUTION: Two sets of circular pan type members 20, 21 are attached to the injection port 4b of a combustion chamber 4 while providing a predetermined gap. The member 20 of combustion chamber 4 side is provided with a hole 25 at the center thereof while the member 21 of a blow out port 3b side is provided with a plurality of holes 26 therearound. Combustion gas, passing through the hole 25 of the member 20 collides against the member 21, and then flows through a peripheral space while contacting with the members 20, 21 through the gap, and thereafter, is discharged into a housing 3 through the hole 26 of the member 21. During this period, secondary oxidization is promoted and the noise of combustion does not propagate into the housing immediately, and the noise is reduced. Accordingly, a combustion chamber, having a small size and high performance, can be obtained.