METHOD OF OPERATION OF INTERNAL COMBUSTION ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: method includes supplying charge into cylinder, supplying cooling charge in a space heated by heat of combustion products of charge, compressing the charge in the cylinder, compressing and heating the cooling charge in the space, igniting the charge, burning out the charge, expanding combustion products in the cylinder which is accompanied with doing mechanical work, discharging exhaust gases from the cylinder, and discharging heated cooling charge from the space. Exhaust gases are fed from the cylinder to a heat exchanger. The heated cooling charge is heated additionally in the heat exchanger, expanded and heated upstream of the outlet of the space that is accompanied with doing additional mechanical work. EFFECT: enhanced efficiency. 2 cl, 2 dwg