Dynamic Cylinder Deactivation with Residual Heat Recovery
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United States of America Patent
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Jun 4, 2015
app pub date -
Dec 3, 2013
filing date -
Dec 3, 2013
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Abstract
Cylinder deactivation is a proven solution to improve engine fuel efficiency. The present invention is related to Dynamic Cylinder Deactivation (DCD) control solution to conventional multiple cylinder internal combustion engine. DCD deactivates all the cylinders within the engine alternatively, dynamically and in a way of keeping thermal balance and mechanical balance between cylinders while keeping best engine overall torque balance. DCD has many advantages over traditional sealed-valves cylinder deactivation. Variable engine displacement, thermodynamic efficiency gain and residual heat recovery are the most attractive features of DCD.
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