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Systems and methods for fuel vapor canister purge

  • US 9,822,719 B2
  • Filed: 03/09/2016
  • Issued: 11/21/2017
  • Est. Priority Date: 03/09/2016
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • regulating purging of vapors stored in a storage canister into an engine intake with a first valve coupled to the intake and a second valve coupled to the canister, by transitioning between;

    under first conditions during the purging, regulating flow through the first valve, and not through the second valve; and

    under second, different, conditions during the purging, regulating flow through the second valve, and not through the first valve.

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