GAS COMBUSTION DEVICE

摘要

A gas combustion device (1) has a combustor (7) for burning a combustion gas fed, an ejector (3) with a primary air hole for sucking primary air into the combustor (7) by ejector effect, and an igniter (5) for igniting a mixture g as jetted from a wick (25) provided forward of the ejector (3). The combustor ( 7) is composed of a primary combustion chamber (11) for igniting and burning th e mixture gas jetted from the wick (25), a secondary air hole (33) for feeding secondary air to the gas burning in the primary combustion chamber (11) afte r the ignition, a secondary combustion chamber (13) for further burning the ga s burnt in the primary combustion chamber (11), and a tertiary air hole (35) f or feeding tertiary air to the gas burning in the secondary combustion chamber (13). Since the secondary air is fed to the gas after ignition in the primar y combustion chamber (11), combustion performance of the gas is improved even when the amount of the primary air is reduced to improve ignitability.