1, solenoid valve is the use of electrical energy flow through the coil to generate electromagnetic suction will be the spool (to overcome the spring or self-gravity) to attract.
2, divided into two categories: normally open and normally closed. Usually used to cut off the flow of oil, water, gas and other substances. With pressure, temperature sensors and other electrical equipment to achieve automatic control.
3、Principle: when energized, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, the valve opens; when disconnected, the electromagnetic force disappears, the spring presses the closing member on the valve seat, the valve closes.
4. When the engine speed is below 750RPM, the idle speed control valve is activated in time to raise the engine speed, and stops after the engine speed exceeds 1050RPM. In cars equipped with a cold air system, this control valve is also called the idle speed boost valve after the cold air compressor operates to generate engine load, which reduces the engine idle speed, and the idle speed control valve then operates to maintain the stability of the idle speed.
5. This valve is used to adjust the idling speed when the engine's operating parameters deviate from normal values. The idle speed is adjusted by controlling the amount of air bypassing the throttle body. After the engine has started, the idle speed control valve opens for a period of time to increase the air intake and increase the idle speed of the engine by approximately 150r/min-300r/min.
