FIELD: motors and pumps.
SUBSTANCE: invention can be used in internal combustion engines (ICE) fuel supply systems. Evaporated fuel processing apparatus includes: vaporized fuel channel (16) connecting fuel tank (2) and adsorber (3); blowing channel (19) connecting adsorber (3) and intake duct (17) of internal combustion engine (1); first purge control valve (23) configured to open and close scavenging channel (19); tank opening state transfer channel (31) connecting position on the upstream side of the first purge control valve (23) in purge channel (19) and tank (2); and second purge control valve (32) arranged to open and close the tank opening state transfer channel when fuel tank (2) passes to the negative pressure, wherein second purge control valve (32) is opened to introduce atmospheric pressure through adsorber (3).
EFFECT: suppression of noise when introducing fuel vapors into the fuel tank with negative pressure in it and acceleration of pressure equalization in the fuel tank.
6 cl, 7 dwg
