Randy,
Does the crankshaft on an Atkinson/Miller cycle engine look like one in an Otto engine?
Check me on this. On an Otto cycle engine, stroke is the distance the piston moves from TDC to BDC. It is the same distance for each of the four cycles. I think this is the same distance as the measurement from the centerline of the main journals to the centerline of the rod journals. Right?
But on an Atkinson cycle engine, at least the BDC position varies with each of the four strokes. Does this come from moving the entire crankshaft on an eccentric (would seem inefficient) or by building the eccentrics for each piston into the crankshaft? Or something
completely different?
