抄録
Conventionally, a few study on a relation between compression ratio and temperature ratio to show a maximum shaft work of the low temperature difference S tirling engine. The simple relation also has not been proposed. In this study, we have analyzed the relation between compression ratio and temperature ratio of the Stirling cycle and Schmidt cycle by using a mechanism efficiency. As the result of this work, we obtain the theoretical equation of relation between the compression ratio and the temperature ratio to show a maximum shaft work. The above mentioned equation for this Strling cycle are as flow: ε=e^2τ-1/e^2-τ (1) where ε; Compression ratio, τ; Temperature ratio, e; Mechanism efficiency