LIQUID FUEL COMBUSTION DEVICE

PROBLEM TO BE SOLVED: To prevent lowering of durability of a combustion chamber caused by contacting of the combustion chamber with flame. SOLUTION: A secondary air intake port 11 for supplying secondary air to the flame F is arranged so that a center part on a back surface of the combustion chamber 5 is high and a part near a side surface is low. The secondary air is not supplied to a whole of the flame F from the same height, but is sent to the part near the both side surfaces of the combustion chamber 5 from the low position, and is supplied to the center part from the high position, and thereby, an end of the flame F is not widened to the lateral direction, and is collected to the center, and therefore, contacting of the flame with the combustion chamber 5 can be prevented. COPYRIGHT: (C)2007,JPO&INPIT