Pulse burners

摘要

In a pulse burner of the type wherein an air-fuel mixture in a combustion chamber is explosively burnt by an ignition plug, a flapper valve repeatedly opens and closes an air inlet passage and a fuel inlet passage so as to repeat explosive combustion of an air-fuel mixture at a high frequency, there is provided a flame detector which interrupts the ignition plug and a fan for supplying air into the combustion chamber once the combustion has started normally.