16x9_top_gas_temp_isoSoot10CA_cutx.jpg (IMAGE) DOE/Argonne National Laboratory Caption Argonne researchers used supercomputers to optimize the design of piston bowls in heavy-duty engines for Caterpillar Inc. The top designs reduced fuel consumption and soot formation, and others had potential to reduce NOx. Credit (Image by Chao Xu/Argonne National Laboratory.) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.