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

Green Car Congress

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 ).

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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

The D-EGR demonstrator is a converted 2012 Buick Regal with a 2.0-liter In their paper, the SwRI researchers reported that the conversion to D-EGR improved engine efficiency and fuel consumption at least 10% across the performance map, with some operating conditions seeing substantially higher improvements. The engine conversion.

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