Pulsated combustion apparatus and a method for controlling such a pulsated combustion apparatus

A method for controlling the direct ignition type pulsated apparatus, said method comprising:

• alternatively repeating a turned-on state and a turned-off state at a given cycle under a given timing;
• feeding a mixture of combustion air and a fuel gas to the burner and igniting the mixture in a burner-provided furnace in the turned-on state;
• maintaining a pilot combustion of a burner in the turned-off state, and
• controlling the cycles and the timings of turning on and off the combustion air valve and the fuel gas valve such that the controlling of the cycle, and the timing of turning on and off an air valve, is effected independently of that of the cycle and the timing of a fuel gas valve, whereby the pilot combustion is prevented from being extinguished at starting time and terminating time of combustion in each cycle wherein a feed pressure of the fuel is raised at a starting time of combustion in each pulsated combustion cycle prior to an increase in feed pressure of the combustion air, and the feed pressure of the fuel is decreased at a terminating time of the combustion in each pulsated combustion cycle subsequent to decrease in the feed pressure of the combustion air.