The universal expressions for the efficiency and the output work of the Ericsson power cycle working substance with ideal Bose gas 4He are determined by using the corrected equation of state. Some interesting discussions are done.

• 利用修正的理想气体状态方程推导出以理想玻色气体 4He为工作物质的量子埃里克森热机效率和输出功的普遍表达式 ；并对结果进行一些有意义的讨论 .