[arcosine]

Yes, according to the diagram, the mixture is heated from 280 to 400 F, burns and expands at 1600F, so there is some gain 8% without, considering the losses in the turbine and compressor. You can consider the second stage as additional expansion. I suppose you could go hotter with direct injection and EGR.

Quote:
"The host of modern hybrids to be found today are often partly powered by what their manufacturers call Atkinson Cycle engines .The truth is that of them are true Atkinsons, primarily because the stroke of the engine is constant across all four cycles. Trick valve timing simulates Atkinson behaviour, but only to a point. True Atkinsons have shorter intake and compression strokes than power and exhaust. Honda has devised an ingenious solution, but as yet is only offering it on their small lawnmower engines."

My first CVCC engine (1977) had an exhaust heated intake manifold it got 5 mpg better than the coolant heated intake (1978), 40 vs 35 mpg. its better to heat the intake after the throttle than before. The obvious problem is it is much hotter under full throttle than part, and so it would knock. (of course I had opened it up to make hotter)

Very interesting story about Smoky.