The objective of the study is to analyze one particular engine, the dual hydraulic free piston engine-DHFPE.
双活塞式液压自由活塞发动机是将内燃机与液压泵集成为一体的新型动力机械。
To study the starting performance of hydraulic free piston engine (HFPE), the typical starting phases of HFPE were investigated through experiments.
为研究液压自由活塞发动机(HFPE)的起动性能，对HFPE样机的典型起动方式进行了实验研究。
Using the design method, a prototype design and experimental verification on the validity of the method are made. The methods can also be applied to other forms of free piston engine designs.
利用该设计方法完成了原理样机设计，并试验验证了该方法的正确性，同时该方法也可以推广应用到其他形式的自由活塞发动机设计当中。
Engine parts, particularly the piston, must be kept free of varnish to ensure performance and proper cooling.
发动机零件尤其是活塞，必须保持光泽以确保性能和正确的冷却。
Based on energy method, parametric design and matching methods for the hydraulic free piston diesel engine are proposed according to its working principle and structural features.
针对液压自由活塞柴油机的工作原理和结构特点提出了基于能量能量法的发动机参数设计与匹配方法。
Vibration characteristics; Micro free swing piston engine; ADAMS;
微型摆式内燃机；振动特性；ADAMS；
Vibration characteristics; Micro free swing piston engine; ADAMS;
微型摆式内燃机；振动特性；ADAMS；
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