BURNER

PURPOSE:To obtain a burner which has a very stable combustion state with a free direction of setting a combustion equipment in a burner to be used as heat source of the combustion equipment. CONSTITUTION:Numerous flame holes 4 facing each other are provided in lateral and longitudinal rows on combustion chamber walls 18 facing each other of a combustion chamber 2 provided with a cooling path 9 in the perimeter thereof, a fuel supply path 6 is connected to the flame holes 4 and a secondary air hole 5 is provided at the outlet of the combustion chamber 2 on the downstream side of the cooling path 9 to form a burner 1 and flames burning in the flame holes 4 are made to impinge to guide a combustion gas to a burner outlet 17. Thus, an unburnt gas which is generated from the flame far from the outlet of the combustion chamber 2 is burned completely by a flame near the outlet of the combustion chamber 2. In addition, cooling air which is supplied to the outlet of the combustion chamber 2 from the secondary air hole 5 gives a resistance to the flow of a combustion gas to check changes in the burning condition as caused by a floating force of the combustion gas thereby turning the burner in random direction.