Toyota say that the IC engine in my Prius works on the Atkinson Cycle. Before I remove the sump to see if there are extra con rods and big ends, as per the keveney.com website, could it be that Toyota mean that they have adopted a radically different valve timing? I asked Toyota but they said they don`t make bicycles. Cheers, Omegalen
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I have no idea, but these folks may:
en.wikipedia.org/wiki/Atkinson_Cycle
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The Atkinson cycle refers to the delayed closing of the inlet valve in the case of the Prius.
This link should explain things:
www.greencar.com/index.cfm?content=features32
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