THICK AND THIN FUEL COMBUSTION DEVICE

PURPOSE:To reduce the amount of CO generated in thick and thin combustion device by a method wherein rod-type obstacle members, guiding combustion gas from the lower side position of one flame port to the lower side position of the other flame port, are provided in a specified direction in parallel at positions at lower side than primary flame and in secondary flame. CONSTITUTION:A plurality of flame port forming members (a), provided with narrow-width flame ports 1, 2 in a second direction M orthogonal to a first direction, are provided in parallel to the second direction M. Rod-type obstacle members 100, guiding combustion gas from the lower side position of one of the flame ports to the lower side position of the other flame port, are provided in parallel to the second direction M at positions at the lower side of either one of a plurality of flame ports 1 or flame ports 2 and the lower side of primary flame F1 formed in the flame port 1 but in secondary flame F2 formed at the lower side of both flame ports 1, 2. According to this method, high-load combustion can be realized under a condition that the generation of CO is reduced while combustion under a condition that the generated amount of NOx is restricted is permitted.