Fuel oil evaporation desorption control apparatus

The utility model discloses a fuel evaporation desorption control apparatus, comprising a fuel tank (1), a carbon pot (5), an air filter (9), a carburetor (10) and an engine (12). A gasoline evaporation line (3) and a pouring check valve (2) is connected between the fuel tank (1) and the absorption port (4) of the carbon pot (5), one end of the carburetor (10) is connected to the air filter (9), the other end is connected to the engine (12) via an inlet pipe (11), the PCV control valve (6) and desorption port (7) of the carbon pot (5) are connected to the two inlets of a tee union (8), the outlet of the tee union (8) is connected to the desorption port of the carburetor (10). The tee union (8) connected to the carbon pot desorption port (7) is equipped with a limiting hole (13). The utility model solves the problem of excessive emission at idle speed and low speed, has the advantages of simple and reliable structure, sufficient combustion, emission compliance, superior desorption effect, long service life and