Pinnacle Engines introduces new opposed-piston engine with a promise of 30-50% better fuel economy

Pinnacle EnginesMarch 31, 2011, Green Car Congress – Startup Pinnacle Engines unveiled plans to commercialize a new, more efficient combustion engine by 2013. The company says the new engine design enables significant reductions in fuel consumption and greenhouse gas emissions without increasing vehicle cost. Pinnacle has raised $13.5 million in venture funding from NEA, Bessemer Venture Partners and Infield Capital.

The Pinnacle engine is based on a four-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture. Pinnacle says the engine achieves 30-50% better fuel economy in various drive cycle comparisons without the large cost penalty that can be associated with significant fuel economy improvement. The performance of the Pinnacle Engines design has been independently verified by FEV, Inc., a Pinnacle Engines development partner.

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