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System and method for storing crankcase gases to improve engine air-fuel control

  • US 8,353,276 B2
  • Filed: 07/18/2008
  • Issued: 01/15/2013
  • Est. Priority Date: 07/18/2008
  • Status: Active Grant
First Claim
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1. A method for processing gases from a crankcase of an engine, comprising:

  • purging gases from the crankcase to an intake while bypassing a canister for a first duration;

    thenstoring gases from the crankcase in the canister for a second duration;

    thenpurging the stored gases from the canister for a third duration; and

    delivering exhaust-heated fresh air to the canister during the third duration.

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