Methodology for preliminary assessment of the design parameters of the suction and discharge valves of a piston hybrid energy machine of volumetric action with regenerative heat exchange

A method is developed for preliminary assessment of the ratio of the areas of the flow sections 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. It is shown that this ratio in pump mode should be 2 times greater than in compressor mode. The basic designs of self-acting valves in piston compressors and piston pumps are considered. Directions for improving the designs of suction and discharge valves of piston hybrid energy volumetric machines with regenerative heat exchange are proposed. Keywords:piston hybrid energy machine, regenerative heat exchange, piston compressor, piston pump, self-acting valves, rotation frequency, crankshaft, discharge pressure Scherba_V_E@list.ru