Low temperature dual fuel combustion utilizing diesel and methanol fuels
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United States of America Patent
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Mar 24, 2015
Grant Date -
Jan 30, 2014
app pub date -
Jul 25, 2012
filing date -
Jul 25, 2012
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Abstract
To reduce emissions at higher engine loads and speeds, methanol fuel is port-injected with charge-air into a diesel engine, and diesel fuel is then direct-injected to initiate combustion. The charge-air has a reduced oxygen concentration sufficient to prevent pre-ignition of the methanol prior to injection of the diesel fuel, and to reduce NOx formation. At low engine speeds and loads, the engine may run on diesel fuel alone.
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