Differential Stroke Cycle Piston Technology (C-Cycle)

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This is the working path for a typical D-Cycle™ implementation – from left to right:

1. The crown is mated with the seat during the power stroke;
2. The two halves split at the low-pressure portion of the power stroke;
3. The crown performs the exhaust and intake strokes; and
4. The crown and seat recombine during the compression stroke.

All four strokes – power, exhaust, intake, and compression – are completed within a single crankshaft rotation.

D-Cycle™ technology executes a true mechanical Atkinson stroke, reduces cyclic energy losses, and matches intake displacement to power demand – which all adds up to higher power density and better fuel efficiency.

D-Cycle™ can be designed into existing production engines, and we have successfully retrofitted a variety of engine sizes using different fuel sources.