| 摘要 |
PURPOSE:To improve a heating efficiency of a domestic-use gas equipment by a method wherein both blocks or plates are recessed and overlapped to each other to form a sub-combustion chamber and this sub-combustion chamber is arranged at a flame outlet port. CONSTITUTION:A small sub-combustion chamber 6 which is almost closed to form a space at a flame outlet port of the burner in which a burner body 1 and a burner head 2 having several teeth at its lower surface are overlapped to form the flame outlet port of the burner. This sub-combustion chamber is formed by aligning the concave grooves of the burner body with the concave groove of the burner head. The flame in the combustion reaction is forcibly recirculated in the sub-combustion chamber 6, the recirculated part always acts as a source of ignition to cause the main flame to be continuously ignited and made stable and at the same time an injection speed near the flame hole wall is decreased by this recirculated eddy current, a fuel gas injection speed is approached to the distribution of combustion speed to make a balance between them and to prevent a lifting of the flame. The root of the flame is protected by the sub-combustion chamber 6 and so a blowing interruption of the flame caused by the secondary air can also be prevented.
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