Methodology for Preliminary Assessment of Design Parameters of Suction Valve and Discharge Valve of a Piston Hybrid Energy Machine of Volumetric Action with Regenerative Heat Exchange

A method for preliminary assessment of the ratio of the flow sections areas of the suction and discharge valves in a piston hybrid energy machine with regenerative heat exchange when operating in pump and compressor modes at a constant angular velocity of the crankshaft is developed. It is shown that this ratio in pump mode should be twice as large as in compressor mode. The basic designs of self-acting valves in piston compressors and piston pumps are considered. Options for improving the designs of suction and discharge valves of piston hybrid energy volumetric machines with regenerative heat exchange are proposed.