FIELD: machine building.
SUBSTANCE: invention relates to systems and methods for improving purging of a fuel vapour catching canister. Systems and methods are provided for improving purging of canister (122) for catching fuel vapours through purging valve (164) of canister in engine (102) with supercharging device. One method includes control of the degree of opening of shut-off valve (185) in order to regulate the bypass flow of compressor (114) through aspirator (180) under conditions with supercharging, to create negative pressure on the aspirator. Rarefaction is supplied to a point downstream of solenoid valve (172) and upstream of critical nozzle (174) inside the canister vent valve.
EFFECT: technical result is improvement of efficiency of vehicle and improvement of compliance with emission requirements into atmosphere.
20 cl, 11 dwg
