| 摘要 |
PURPOSE: An oil draining system of a gas metering valve is provided to prevent output degradation of an engine by mixing air with gas in an optimal mixing ratio and to promote convenience for a driver by automatically supplying oil. CONSTITUTION: An oil draining system comprises an oil amount sensor(3), an idle sensor(2), an ECU(Electronic Control Unit)(4) operating signals from the sensors and outputting control signals, a relay(5) driven by the control signals, a solenoid valve(6) driven by the relay, and an actuator(8) driven by the air in an air tank(7) via the solenoid valve. If an engine is in an idle state and oil level is over a specific value, a control signal is outputted to drive the relay. With operation of the relay, power(B+) is supplied to open the solenoid valve. Then, a duct is formed and the air in the air tank flows through the duct. The actuator is driven by the airflow. Therefore, oil collected in the lower end of a gas metering valve(1) is drained.
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