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Method for reducing air flow in an engine at idle

  • US 9,657,659 B2
  • Filed: 02/20/2015
  • Issued: 05/23/2017
  • Est. Priority Date: 02/20/2015
  • Status: Active Grant
First Claim
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1. A method for a boosted engine, comprising:

  • adjusting, via an electronic controller, an opening of a common shut-off valve (CSOV) based on and maintaining engine idling conditions, and each of a motive flow through an aspirator, and a crankcase ventilation flow from a crankcase, the motive flow and the crankcase ventilation flow combined together at a junction between the aspirator and an intake manifold and flowing through the CSOV when the CSOV is open.

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