| 摘要 |
PURPOSE:To prevent the occurrence of pipe clogging due to carbonization in residual fuel, by constituting a device so as to suck fuel inside a carburetor and to energize a carburetor glow plug with a continuous rating current at a time when a heating burner stops, in case of the heating burner for quick heating use in an internal-combustion engined car. CONSTITUTION:When engine load is more than 1/2 of the total load, fuel valves 81 and 81' are closed and operation of a heating burner 4 is stopped. At this time, fuel suction pistons 83 and 83' operate, sucking unburned fuel inside a carburetor 7 into control chambers 84 and 84' and simultaneously making the carburetor inhale air from an injection nozzle 72. Therefore, unburned fuel inside the carburetor 7 is ignited into combustion with a carburetor glow plug 71 being still energized. Then, after the elapse of the specified time, a continuous rating current to the carburetor glow plug 71 is stopped. With this constitution, pipe clogging due to carbonization in the residual fuel is prevented from occurring. |
