Function of check valve of LaVida carbon canister

It is responsible for collecting and storing gasoline vapor. Its shell is generally made of plastic, filled with activated carbon particles that can absorb steam, and the top is equipped with a cleaning control valve to control the amount of gasoline vapor and air entering the intake manifold and a filter screen to purify gasoline vapor.

It is mainly to control the exhaust gas involved in combustion, which is beneficial to environmental protection, reduce the emission of nitrogen oxides and ensure that the engine has enough power (too much exhaust gas involved in combustion will make the engine work badly).

Extended data:

The function of the check valve is as follows:

① Introduce the exhaust gas in the crankcase into the intake manifold to reduce the harmful gas emitted by the engine;

② Keep the pressure in the crankcase below atmospheric pressure to reduce oil leakage;

③ Keep the crankcase ventilated and the engine oil fresh.

One-way valves also have a certain relationship with fuel economy. If the engine oil in the crankcase deteriorates, becomes dirty and blocks the check valve, the vacuum degree of the intake manifold will increase with the increase of the throttle opening, so the air velocity at the throat of the carburetor will increase, the oil output of the fuel injector will also increase, and the fuel consumption will also increase.