METHOD OF OPERATION OF HEAT MACHINE AND PISTON ENGINE FOR IMPLEMENTING THE METHOD Russian patent published in 2006 - IPC F02G1/04 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to methods of operation and design of heat machines, particularly, piston engines. According to proposed method of energy conversion including adiabatic expansion of working medium from T₁ to T₂, isobatic cooling from T₂ to T₃, adiabatic compression from T₃ to T₄ and isobaric heating from T₄ to T₁, additionally, after cooling, adiabatic compression of working medium to temperature T₂ is carried out and then isobaric cooling to T₃, after isobaric heating adiabatic expansion to T₄ is carried out and then isobaric heating to T₁, difference of temperatures T₁ - T₄ is set greater than difference of temperatures T₂ -_{T3 to provide closed working cycle. Piston engine contains heater, cooler, working medium accumulating reservoir, chamber-piston group and two pairs of working and pump chambers, working and pump chambers being arranged at opposite sides of pistons, and pistons being rigidly intercoupled by displacer. Working chambers are arranged along outer parts of chamber unit, and pump chambers, in inner parts, each working chamber being connected with pump chamber mating through piston by two pipelines through valves, one pipeline is provided with heater and the other, with cooler, valves are installed on connection of each chamber with pipelines. Engine contains additionally one heater, one cooler and seven accumulating reservoirs. Said working medium accumulating reservoirs are installed at each inlet and outlet of each heater and each cooler. Working chamber providing expansion from T1 to T2 has maximum volume limited by walls of upper cylinder, piston and cover of chamber.}

EFFECT: increased efficiency.

5 cl, 2 tbl, 7 dwg