Where is the activated charcoal canister located in a car?

[KendraMarie]

Carbon canisters are generally installed between the fuel tank and the engine. Since gasoline is a highly volatile liquid, the fuel tank often contains vapors at room temperature. The fuel evaporation emission control system is designed to direct these vapors into the combustion process and prevent them from being released into the atmosphere. The activated charcoal canister storage device plays a crucial role in this process. The working principle of the carbon canister is as follows: 1. After the engine is turned off, gasoline vapors mix with fresh air inside the canister and are stored in the activated charcoal canister. 2. When the engine starts, the solenoid valve located between the activated charcoal canister and the intake manifold opens, allowing the gasoline vapors inside the canister to be drawn into the cylinders by the vacuum in the intake manifold, where they are burned along with the clean air. This not only reduces emissions but also improves fuel efficiency. 3. Due to the adsorption properties of activated charcoal, when the car is running or turned off, gasoline vapors from the fuel tank enter the upper part of the activated charcoal canister through the piping, while fresh air enters the canister from the lower part.