| 摘要 |
PURPOSE:To improve air blowing ability while facilitating a control as compared with when a fuel pump and blowers are separately controlled by driving the fuel pump and a two-stage blower, comprising a combustion blower and a hot air blower, respectively with a single motor. CONSTITUTION:A hot air blower 1 sucks the outside air from a suction pipe to forced to be fed to a heat exchanger. While a combustion blower 3 introduces the pressure air, delivered from the hot air blower 1, through an introducing passage 31 to be forcedly fed to a combustion chamber of a combustor. Further the combustion chamber evaporates fuel, forced to be fed from a fuel pump 7, to be mixed with the fed air from the combustion blower 3 and ignited, performing combustion. Here a fan 12 of the hot air blower 1, fan 32 of the combustion blower 3 and a driver gear 71 of the fuel pump 7 are respectively driven by a single rotor 91 of a motor 9. And to a delivery port of heating air in the hot air blower, 1 suction port of the combustion blower 3 is connected. |
