Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism
Green Car Congress
APRIL 22, 2009
liter, 4-cylinder engine, the dual piston mechanism was able to adjust the engine from a CR of 9.6 Combining the high compression ratio with the Atkinson cycle, the engineering team demonstrated a 7.4% improvement in fuel economy in operation over the Japanese 10-15 cycle. Mpa (8 bar) and the oil flow rate is 3L/min.
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