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Variable valve actuation and HCCI could yield 20% efficiency bump

Even with the inexorable move toward electrically driven cars in the next couple of decades, the internal combustion engine will remain with us for some time to come either as the primary powertrain on many vehicles or at least as an auxiliary power unit for series hybrid vehicles. Given that reality, researchers are working feverishly on ways to improve the efficiency of ICEs as much as possible. During the recent SAE World Congress speakers from almost every carmaker and research facility talked about a new combustion process called ... Read more →

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