Radical engine redesign would reduce pollution, oil consumption

Gregory M. Shaver, from left, an assistant professor of mechanical engineering at Purdue, and graduate student David Snyder discuss how to modify a commercial diesel engine with a new technology that promises to dramatically reduce oil consumption and the emission of global-warming pollutants. Graduate student Gayatri Adi (background) reviews software algorithms needed for the new technology, called homogeneous charge compression ignition. Credit: Purdue News Service photo/David Umberger