| 摘要 |
PURPOSE:To prevent decrease in a fuel injection quantity when a battery voltage drops, by arranging such that there may take place a reduction of resistance value in a resistor connected with a solenoid valve for controlling an electric current in response to a voltage drop, in a fuel injection control device for a gas turbine engine. CONSTITUTION:While a start signal S7 is retained ON, a transistor 8 is turned ON and a relay 9 is energized, thereby causing a contactor of the relay 9 to switch ON for starting an operation. Upon the contactor of the relay 9 being switched ON, the relay 10 is also energized for turning ON all of its four contacts. Thus, a resistor R2 is short-circuited and solenoid valves 6 and 7 are brought into contact with a battery VB solely via a resistor R3. In this manner, solenoid valves 6 and 7 are energized with an ample voltage even when a battery voltage drops at the start-up operation, thereby allowing these valves to receive an ample driving current in response to signals S5 and S6 indicative a fuel injection timing. |
