| 摘要 |
PURPOSE:To simplify an engine fuel supply system in structure as well as to improve the extent of engine performance, in a combination service-emergency generator provided with a duel-fuel engine. CONSTITUTION:A city gas feed passage 5 derived from a gas emergency trip valve 4 and an LPG feed passage 7 derived from a liquefied petroleum gas cylinder 6 both are selectively connected to a pressure controller 12 by two solenoid valves 10a and 10b. In addition, this pressure controller 12 is selectively connected to a city gas flow controller 15 and an LPG flow controller 16 by other two solenoid valves 13a and 13b. These two flow controllers 15, 16 are connected to an engine 2 by way of a mixer 17. At the time of disaster, a control unit 19 closes these solenoid valves 10a, 13a by an emergency detection signal of the gas emergency trip valve 4, while the solenoid valves 10b, 13b are opened instead, and liquid petroleum gas in the cylinder 6 is fed to the engine 2. |
