The article states the necessary about the reseach of lowduty single cylinder testing engine and introduce the common principle by combining with the design of DS single cylinder testing engine.

• 阐述了单缸试验机开发的必要性,并结合DS单缸试验机的设计,介绍了设计的一般准则;通过实践,进一步证明:单缸试验机是内燃机工程师开发新机型和对现有产品的性能和结构参数进行改造的主要工