中文摘要：

论述了单缸机械-液压约束活塞发动机(MHCPE)的结构原理,定义了评价系统经济性的"燃油消耗率"的概念。通过试验,MHCPE转速为1000r/min～2500r/min、油门开度为30%～100%,纯机械动力输出时,燃油消耗率比传统发动机改善3.99%～18.91%;纯液压动力输出时,燃油消耗率比传统发动机驱动柱塞泵系统改善12%～42.78%。MHCPE随着有效液压能在总能量输出中比例的增加,相比传统的发动机或发动机驱动柱塞泵系统,经济性改善更加明显。

英文摘要：

Structural principle of single cylinder Mechanical-Hydraulic-Confined-Piston Engine(MHCPE) is described, at the same time the definition of fuel consumption reflecting theeconomic efficiency of MHCPE is defined.Through experiment, when rotational speed ranges from 1000 r/min to 2500 r/min, throttling ranges from 30% to 100% , if the output is pure mechanical energy, fuel consumption of MHCPE can be improved by 3.99% ～ 18.91% than traditional engine;if output is pure hydraulic energy, fuel consumption can be...