Patent ID: 6880534

Claim:
An evaporative fuel processing system including a fuel tank, a canister for temporarily storing evaporative fuel generated in said fuel tank, a charge passage connecting said fuel tank and said canister, a first purge passage connecting said canister and an intake pipe of an internal combustion engine having a turbocharger, and a purge control valve provided in said first purge passage for adjusting a flow rate of gases flowing through said first purge passage, said evaporative fuel processing system comprising: a second purge passage connecting a downstream side of said purge control valve of said first purge passage and an upstream side of said turbocharger of said intake pipe; a jet pump mounted on said second purge passage; and a pressurized air supply passage for supplying air pressurized by said turbocharger to said jet pump; wherein said jet pump includes a nozzle for discharging pressurized air supplied through said pressurized air supply passage, and a casing surrounding said nozzle with a space, and said space being a part of said second purge passage.