| 摘要 |
PURPOSE:To achieve stable burning in small burning quantity and hot water supply with stable temp. by installing a plurality of fuel spray nozzles, a fuel supply pump changing fuel supply quantity, and an open and closed valve. CONSTITUTION:When fuel is forced to feed by a fuel supply pump 12, fuel is atomized from only a fuel spray nozzle 7a as an open and closed valve 13 in a fuel supply pipe 11b is closed. This fuel is collided and mixed with revolving air which is spouted into an auxiliary burning cylinder 6 and a burning chamber 4 from an air holes 5a in a vaporizing cylinder 5 by a burning blower 15 in a quantity corresponding to the burning quantity in the cylinder and the chamber. When a small quantity of hot water is required, the number of used fuel spray nozzles 7a, 7b is reduced and fuel spray quantity is reduced by reducing the fuel supply pressure of a fuel supply pump 12. When a large quantity of hot water supply is requested, a plurality of fuel spray nozzles are used to raise the fuel supply pressure of the pump 12 to increase in fuel spray quantity and change in burning quantity over a wide range. Thus, hot water supply with stable temp. is able to be constantly achieved.
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