FIELD: machine building.
SUBSTANCE: group of inventions relates to hybrid internal combustion thermal engines and to external heat supply. Essence of inventions consists in that, engine in addition to the housing with a conrodless mechanism for converting movement of rods into shaft rotation, air supply systems, fuel supply, ignition, gas distribution and gas removal, comprises at least two anti-phase stepped cylinders with heads, each of which includes three variable-volume chambers formed by stepped piston, namely: under-piston air compressor chamber, above-piston working chamber with heat supply and inter-piston working internal combustion chamber, as well as heater separated in heat insulator, made in form of cylinder inner jacket, and refrigerator – in form of external jacket, between the heater and the cooler the displacement cavity is made in the form of a hollow shell and connected by a tangential channel to the above-piston chamber. Channels of exhaust gases from combustion chamber are arranged in heater body and its bottom, and channels of air or fuel-air mixture supply to combustion chamber are arranged in body of external jacket of cylinder so that piston allows to perform spool-type gas distribution by means of channels located in it. Introduction of plasma-forming energy into working chamber with heat supply will make it possible to perform "active" regeneration of compression heat with its transfer from compression stroke to cycle of expansion and to improve thermal efficiency of hybrid. Piston for improving gas exchange may contain an aerodynamic valve supplying air or fuel-and-air mixture to the inter-piston internal combustion chamber, which has a common internal cylindrical surface of the heater with an adjacent above-piston chamber.
EFFECT: increased injectability and specific power of engine, higher efficiency, reliability and service life.
7 cl, 4 dwg
