Calculation diagrams of the phases of operation of the heat pump unit compressors without a choke

To determine the phases of operation of the compressors of the without a choke heat pump installation, 4 calculation schemes have been drawn up, which take into account the geometric features of the crank mechanism, the time of opening and closing the valves, the coordinate of the piston depending on the angle of rotation of the crankshaft. Restrictions are introduced to the calculation schemes for the further compilation of mathematical models. The result of the compilation of calculation schemes is the analytical dependence of determining the instantaneous value of the cylinder piston coordinate depending on the geometry of the elements of the crank mechanism and on the rotation angle of the compressor crankshaft.