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Evaporative fuel processing system

  • US 6,880,534 B2
  • Filed: 06/21/2004
  • Issued: 04/19/2005
  • Est. Priority Date: 07/08/2003
  • Status: Expired due to Fees
First Claim
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1. 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.

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