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SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

Green Car Congress

FEBRUARY 25, 2014

Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ). In 2013, SwRI reported a 2.0-liter

Fuel Economy 277
Fuel Economy Engine Fuel Economy 277
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SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

Green Car Congress

APRIL 9, 2014

The D-EGR demonstrator is a converted 2012 Buick Regal with a 2.0-liter D-EGR brake specific fuel consumption (BSFC) at 2000 rpm 2 bar BMEP dropped 14.3% Hydrogen-enriched exhaust is routed to the intake. By running one cylinder rich, the excess fuel is reformed into hydrogen and carbon monoxide.

Gasoline 317
Gasoline Emissions Diesel Exhaust 317
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