U Waterloo team develops novel variable valve actuation system; 58% less energy use than cam-driven valvetrain

Green Car Congress
By mmillikinMar 23, 2018, 1:18 pm495 ptsHot
A team at the University of Waterloo has developed a novel variable valve actuation (VVA) system, optimized to pursue minimum energy consumption and minimum sensitivity of the valve lift to cycle-to-cycle variations of engine pressure. The product of a decade of research, this patented system could improve fuel…

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