Intake Pressure Control Strategy In Gaseous Fuel Internal Combustion Engine
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United States of America Patent
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Issued Date -
Oct 22, 2015
app pub date -
Apr 21, 2014
filing date -
Apr 21, 2014
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Abstract
Controlling intake pressure in a gaseous fuel internal combustion engine includes calculating a control term in an intake pressure control loop based on a pressure error, and adjusting a throttle valve and a second valve responsive to the control term in first and second control loop cycles. The second valve is within a return conduit returning compressed gases from a location downstream a compressor to a location upstream. A pressure of gaseous fuel and air within the intake conduit is changed via the adjustments so as to reduce the pressure error.
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