THERMAL ENGINE Russian patent published in 1994 - IPC

FIELD: thermal-to-mechanical energy conversion, driving of various machines and mechanisms. SUBSTANCE: thermal engine has evaporator-heater 1, hydraulic motor 3, hydraulic accumulator accommodating distributor 12 with ports, valve 23, and additional hydraulic accumulator 24. Hydraulic distributor 12 is linked kinematically with brake member 28 and control member 29. During braking and stopping energy is regenerated due to the fact that at braking ports of hydraulic accumulator 12 provide communication between outlet line of hydraulic motor 3 and additional hydraulic accumulator 24 affording charging of the latter with liquid placed at high pressure in which case hydraulic motor 3 functions as hydraulic pump and its inlet line communicates with main hydraulic accumulator. As hydraulic motor 3 stops running, additional hydraulic accumulator 24 charges from operating evaporator-heater 1. Hydraulic accumulator 24 charged during braking and stopping is discharged as control member 29 is placed in FORWARD position and imparts its energy to hydraulic motor 3 thereby increasing output power during initial moment which is most essential, for example, when engine is used to drive motor car as it gains speed. EFFECT: improved efficiency of engine. 1 dwg