Method and system for vacuum generation
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United States of America Patent
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Sep 13, 2016
Grant Date -
Jun 19, 2014
app pub date -
Mar 13, 2013
filing date -
Dec 13, 2012
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Abstract
Methods and systems are provided for controlling motive flow through an ejector using a pneumatically controlled valve. A vacuum actuated valve may be opened at low vacuum conditions to increase motive flow through the ejector while the valve is closed at high vacuum conditions to decrease the motive flow. This allows motive flow through the ejector to be controlled based on vacuum needs at low component cost.
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