FIELD: engines and pumps.
SUBSTANCE: invention can be used in fuel management systems for internal combustion engines (ICE). Methods and systems are disclosed for improving the efficiency of canister 63 purge completion. Based on engine operating conditions, a canister is purged to compressor inlet 90 or throttle outlet 22. During purging conditions, as canister 63 loads change, a purge flow through the canister is varied so that a fixed preselected portion of total engine fueling is delivered as fuel vapours. With higher filling of the canister with fuel vapours, the rate of their purging from the canister is lower than with lower filling of the canister with fuel vapours.
EFFECT: invention enables to reduce the toxicity of internal combustion engine exhaust gases and save liquid fuel, through the implementation of more complete and effective purge of fuel vapour from the canister.
20 cl, 9 dwg
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