| 摘要 |
Fuel vapors are purged from a vapor storage canister to the intake of an internal combustion engine by inducting air into the vapor canister, modulating the purge flow of an air and fuel vapor mixture from the canister, and establishing a predetermined magnitude of combustion exhaust emissions by gradually changing the magnitude of a transient flow between no purge flow and a full purge flow so that the amount of combustion exhaust emissions is maintained below the predetermined magnitude.
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