DOE awards Envera $2.8M to develop and to test efficient variable compression ratio engine
Green Car Congress
JUNE 22, 2013
The new engine will achieve high efficiency using the Atkinson Cycle with an 18:1 compression ratio, combined with aggressive engine downsizing. Valve events will also be adjusted with the VVA to trap more air in the cylinders when power is needed. Engine downsizing is a key tool in improving fuel economy. Earlier post.).
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