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Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism

Green Car Congress

Engineers from Honda R&D Co., presented a pair of papers at the SAE 2009 World Congress describing the development of a variable compression ratio (VCR) engine enabled by a dual piston mechanism. liter, 4-cylinder engine, the dual piston mechanism was able to adjust the engine from a CR of 9.6 and back again.

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Groups join forces on fuel efficient engine

Green Cars News

China’s fourth largest car manufacturer Chongqing Changan Automobile Co and Orbital Corporation Limited have formed a joint development to work on a concept engine. It is hoped that with fuel economy improvements, the Euro IV emission levels will be achieved.

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