What is the main function of the activated carbon canister?
2 Answers
The main function of the activated carbon canister is to reduce the emission of gasoline vapors from the automobile fuel tank and carburetor. Below is relevant information about the activated carbon canister: Function of the activated carbon canister: The activated carbon canister, also known as the automobile fuel evaporation emission control device, is a canister filled with activated carbon. It is used to adsorb fuel vapors generated by the temperature difference ventilation in the automobile fuel tank after parking. Additionally, under the China VI standard, it is also used to absorb fuel vapors produced during refueling. Advantages of the activated carbon canister: When the engine is ignited, the gas from the activated carbon canister is drawn into the engine intake pipe through the canister purge valve. The opening, closing, and absorption level of this control valve are determined by the electronic fuel injection system's control unit. The activated carbon canister significantly reduces atmospheric pollution caused by exhaust emissions.
I remember always smelling gasoline when driving before, and later learned that the charcoal canister is specifically designed to address this issue. It's installed in the car mainly to absorb evaporative gases produced in the fuel tank, preventing those harmful gases from escaping into the air and polluting the environment. On hot days when parked, the fuel tank pressure increases and gases tend to escape, but the charcoal canister captures them. When the engine starts, these gases are drawn back into the engine to be burned. This not only reduces gasoline odor but also saves a bit of fuel, making it quite environmentally friendly. Nowadays, all new vehicles come equipped with it to comply with emission regulations. If the canister fails, the car might experience hard starting or odor problems. I recommend owners have it checked annually to prevent minor issues from becoming major expenses. Try to park in shaded areas when possible to extend the canister's lifespan—it's both convenient and cost-effective.
