Development and Research of an Experimental Prototype of the Positive Displacement Two-Stage Piston Hybrid Energy-Generating Machine

This paper considers the new principle diagram of the positive displacement two-stage piston hybrid energy-generating machine. A prototype of the two-stage piston hybrid energy-generating machine has been developed based on the analysis of working processes and frames of piston hybrid energy-generating machines, as well as by using preliminary theoretical studies. This prototype allows to visualize the movement of the liquid piston in the second stage of the machine. A set of experimental studies on a previously developed and modernized test bench made it possible to prove the working capacity of the prototype, to measure the main thermodynamic and discharge parameters, and to identify the main features of the ongoing work processes.