The new principle of the organisation of working process of the combined supercharging system of Internal Comdustion Engine (ICE) with the Cascade Pressure Exchanger(CPE) has been described. It allows considerably to raise level of forcing of the engine by supercharging at the expense of expansion of effective air supply area and coolings of supercharging air to temperature below an ambient without attraction of additional mechanical energy on refrigeration cycle realization.
Substantive postulates of imitating model of work of combined engine(CICE) have been stated. Some results of calculation-experimental investigations of supercharging system of the engine 6ЧН12/14 have been adduced.