JPS6457007A - Liquid fuel combustor - Google Patents

Abstract

PURPOSE:To shorten the length of combustion flame so as to provide a compact combustion chamber and miniaturize a liquid fuel combustor by providing a combustion secondary air passage surrounding a mixing part and a combustion part, as well as secondary air holes above the combustion secondary air passage. CONSTITUTION:Part of combustion air enters into a mixing part 14 to be mixed with vaporized gas. It then is ejected from a flame hole plate 20 into the combustion chamber 24 wherein it is ignited and burnt. The rest of the combustion air is supplied to the burning flame through a combustion secondary air passage 16 out of secondary air holes 23. By inclining the combustion secondary air passage 16 from a position higher than the flame hole plate 20 toward the flame hole plate 20 which has secondary air holes 23 in its inclined surface 22, it becomes easier for the secondary air to be ejected toward and hit the burning flame, the combustion is promoted, thereby shortening the flame length and allowing a compact combustion chamber to be formed. Further, since the secondary air ejection holes 23 are arranged to surround the flame hole plate 20, the combustion secondary air can be supplied to the burning flame uniformly.