| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of a phenomenon, in winter, wherein vaporized liquid fuel is reliquified to discharge white smoke or the like, by setting, in winter, a combustion temperature at the time of a combusting operation or a vaporization preheating temperature at the time of a standby operation prior to the combusting operation, in response to required designated signals, higher than the temperature at the stationary time. SOLUTION: When an switch for changing operational conditions is in an off-state, a combusting operation in the stationary conditions is conducted. However, when the switch is in an on-state, the combusting operation is conducted in high temperature conditions wherein a heating temperature of a vaporizer 20 is set higher than the stationary conditions. In the combusting operation under such high temperature conditions, a vaporization heater 22 is controlled so that the heating temperature of the vaporizer 20 will be a required set temperature, for instance, at 250 deg.C which is higher than the temperature at the stationary time. Accordingly, when the operational condition changing switch is on in winter time or the like, for example, at the time of combusting operation, it becomes possible to prevent the occurrence of a phenomenon wherein liquid fuel which has once been vaporized in the vaporizer 20 is reliquified in a mixing chamber 25 to discharge white smoke.
|
