中文摘要：

通过试验研究了内燃式水动力装置的有效热效率特性.内燃式水动力装置将传统内燃机与柱塞式水泵技术集成为一体,直接利用活塞往复直线运动输出水压能.定义了系统最佳有效热效率区和最佳有效热效率特性曲线并与传统内燃机驱动柱塞泵系统进行了比较.全工况有效热效率比传统内燃机驱动柱塞泵系统改善13.63%～74.45%.相同有效热效率水平下包含的工况明显比传统内燃机驱动柱塞泵系统宽广.内燃式水动力装置各油门开度下最高有效热效率在19.91%～28.88%之间,对应转速为1 400r/min.

英文摘要：

The effective thermal efficiency character of internal combustion water power device is studied through experiment. The device integrated traditional combustion engine and plunger pump technique, made directly use of the rectilinear motion of plunger for outputting water power. The optimal effective thermal efficiency working zone and optimal effective thermal efficiency curve are defined and compared with traditional internal combustion engine driving plunger pump. The effective thermal efficiency in total working conditions of the device is higher than traditional internal combustion engine driving plunger pump by 13.63%-74.45%. The working conditions in same effective efficiency level of the device is wider than internal combustion engine driving plunger pump system. The highest effective thermal efficiency in different throttles of internal combustion water power device is between 19.91% and 28.88%, corresponding rotational speed is about 1 400 r/min.