System for Variable Blending Of Ethanol And Exhaust Water For Use As An Anti-Knock Agent
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United States of America Patent
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Issued Date -
Jul 14, 2011
app pub date -
Jun 25, 2010
filing date -
Jun 26, 2009
priority date (Note) -
Abandoned
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Abstract
The present application describes systems for water retrieval from the engine exhaust. This collected water can be used both for removing ethanol from ethanol-gasoline blends, and for use as a knock suppressant. The water that is removed from the exhaust can be used as the only source of water or in combination with water that is externally supplied. The present application also describes new means for removal of water from the exhaust that can be employed for applications. In some embodiments, an auto-heat exchanger is employed to recover water from the engine exhaust.
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