STAGED ARRANGEMENT OF EGR COOLERS TO OPTIMIZE PERFORMANCE
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United States of America Patent
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Issued Date -
N/A
app pub date -
Oct 29, 2008
filing date -
Nov 1, 2007
priority date (Note) -
Abandoned
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Abstract
A compression ignition engine comprising at least one combustion chamber, an air intake system, a fuel system, an exhaust system and an exhaust gas recirculation system. The air intake system conveys air to the chamber. The exhaust system conveys exhaust gases from the combustion chamber. The exhaust gas recirculation system is capable of recirculating a portion of the exhaust gases into air intake system. The exhaust gas recirculation system comprises a cooler package and a valve. The valve controls the amount of air flow through the cooler package. The cooler package includes a first portion, a second portion and a control valve. The control valve of the cooler package is configured to control whether the air that flows through the cooler package flows only through one of the first or the second portion or through both of the first portion and the second portion in parallel.
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