HIGH-EFFICIENCY THERMAL ENGINE Russian patent published in 2010 - IPC F02C3/05 F02C6/00 

FIELD: engines and pumps.

SUBSTANCE: proposed thermal engine comprises two independent rotors (3, 4), preferable coaxial ones (XX), each being arranged in one of two cases (5, 6). Note here that first rotor (3) makes a part of LP stage (1), while second rotor (4) is incorporates with HP stage (2). Every stage (1, 2) furnished with its rotor (3, 4) comprises gas compressor (15, 16) and gas expanding turbine (17, 18). Thermal engine comprises at least one combustion chamber (19, 20). Note that at least one combustion chamber is arranged in, in fact, central cylindrical space axially limited by two rotors (3, 4) and their cases (5, 6), and, radially limited, in inward to outward direction, by inner (22), intermediate (23) and outer (24) walls, in fact, cylindrical and coaxial relative to axis (XX). Intermediate (23) and inner (22) walls form, between themselves, inner circular channel (26) communicating outlet of HP-stage compressor (16) with inlet of first combustion chamber (19). Outer (24) and intermediate (23) walls form outer circular channel (25) communicating outlet of compressor (15) of LP stage (1) with inlet of compressor (16) of HP stage (2). Outlet of first combustion chamber (19) feed combustion gases to turbine (18) of HP stage (2), said gases being directed from outlet of turbine (18) of HP stage (2) to inlet of turbine (17) of LP stage (1). Outlet of LP stage (1) communicates with outer space of engine case (24, 27, 31) via at least one exhaust gas channel (41).

EFFECT: higher efficiency of micro engine.

26 cl, 4 dwg