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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。
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