本文介绍采用四种措施对程氏循环燃机进行完善，从而组成IDFC循环，使装置的效率、比功有明显的提高，环保性能得到改善，循环用水大部分得到回用． This article describes the use of four kinds of measures to Cheng cycle gas engine to improve, and thus constitute IDFC cycle, so that the efficiency of the device, significantly improved than the work, environmental performance has been improved, most of the recycled water to be reused.