Atkinson cycle is an ideal cycle for Otto engine exhausting to a gas turbine. In this cycle the isentropic expansion 3-4 of an Otto cycle (1-2-3-4) is further allowed to the lowest cycle pressure so as to increase the work output. With this modification the cycle is known as Atkinson cycle. The cycle is shown on p-V and T-s diagrams.
|Pressure-volume and Temperature-entropy diagram for the air-standard Atkinson cycle|