Quote:
Originally Posted by freebeard
Not having seen the MEN article, I thought the 6-cycle engine was intended to reduce emissions with the 2nd power stroke cleaning up any charge unburned due to reversion, etc. Without a second intake stroke, how could you get 2x anything? I'd expect 2/3 for a given displacement.
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It wasnt about emissions... the water turns to steam creating a second power stroke. The heat normally going out the exhaust is turned into pressure. I don't know if it was literally 2x the exact power, but I seem to remember the discussions saying it was pretty darn close. They figured efficiency went from like 33% up to 60% or more. Twice the power strokes on the same amount of fuel. There was some loss recompressing the mixture and such but it recovered most of the heat energy.