Ford Global Technolgoies, LLC

Mark Steadman

Ross Dykstra Pursifull

Katherine Jane Brewer

Joseph Norman Ulrey

Methods and systems are provided for enhancing crankcase ventilation in a boosted engine. During boosted conditions, a crankcase may be ventilated via vacuum generated at an aspirator coupled in a compressor bypass passage. However, when the aspirator is plugged, pressure in the crankcase may be relieved by flowing crankcase gases through an aspirator bypass passage.

Method for crankcase ventilation in a boosted engine

Methods and systems are provided for ventilating a crankcase in an engine. In one example, when the engine is operating boosted under cruising conditions, fuel vapors from the crankcase may flow to each of a compressor inlet and an intake manifold of the engine. In this way, the crankcase may be effectively purged.

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Bromley, United Kingdom

Mark Steadman