Where is the solenoid valve of Jianghuai Ling Jun 4.2m van?

The solenoid valve is generally near the throttle and is a three-way valve.

The carbon canister is usually installed between the fuel tank and the engine. Because gasoline is a volatile liquid, the fuel tank is often filled with steam at room temperature. The function of fuel evaporative emission control system is to introduce steam into combustion and prevent it from evaporating into the atmosphere. The storage device of activated carbon tank plays an important role in this process.

Because of the adsorption function of activated carbon, when the car is running or turning off, gasoline vapor in the fuel tank enters the upper part of the activated carbon tank through the pipeline, and fresh air enters the activated carbon tank from the lower part. After the engine is turned off, gasoline vapor and fresh air are mixed in the fuel tank and stored in the activated carbon fuel tank. When the engine is started, the electromagnetic valve of the fuel evaporation purification device installed between the activated carbon canister and the intake manifold is opened, and the gasoline vapor in the activated carbon canister is sucked into the intake manifold to participate in combustion.