Enhanced engine performance with fuel temperature control
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United States of America Patent
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Jan 31, 2017
Grant Date -
Oct 9, 2014
app pub date -
Mar 12, 2014
filing date -
Mar 12, 2013
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Abstract
Methods and systems for utilizing heated fuel to compensate for a low cetane number, cetane number variance and sub-optimal engine cold-start performance in internal combustion engines are disclosed herein. Systems comprise a heater, a sensor, and an engine control unit (“ECU”). Methods can comprise detecting variables that affect combustion, calculating conditions inside a combustion chamber, determining the difference between current ignition delay and a desired ignition delay, estimating a cetane number of a fuel, and using the data to determine a suitable temperature that will compensate for cetane number and improve the ignition delay. Other methods comprise sending a signal to a heater in communication with a fuel injection system such that said heater warms fuel within the fuel injection system prior to injecting the fuel into a combustion chamber.
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