My wife has a weekly subscription to a London-based magazine called The Economist. The magazine has been around since 1843 and exists to take part in “a severe contest between intelligence, which presses forward, and an unworthy, timid ignorance obstructing our progress.”
The idea of injecting water into the combustion chamber of an engine has been around since the 1940s and has been weaving in and out of cars since the 1960s, but never caught on. However, BMW recently announced that its upcoming M4 GTS would be marketed with a water injection system. This development now presents the question of whether or not the technology will finally become widespread in the performance segment.
Internal combustion engines are poised for dramatic breakthroughs in improving efficiency with lower emissions, thanks in part to low-temperature combustion regimes. Such regimes show great efficiency and emissions potential, but they present optimization and control challenges that must be addressed before they enter the engine mainstream. Caterpillar Inc., in Peoria, IL, turned to U.S. Department of Energy’s Argonne