CONTROL METHOD OF PISTON ENGINE TURBO-SUPERCHARGER ROTATION FREQUENCY AND CONTROL SYSTEM FOR PISTON TURBO-CHARGED ENGINE Russian patent published in 2014 - IPC F02D13/02 F02D41/00 F02B37/22 

FIELD: engines and pumps.

SUBSTANCE: invention may by used in internal combustion engines provided with turbo-superchargers. Control method of turbo-supercharger rotation frequency is used in piston engine containing inlet and outlet valves (35) and (40), drive system (45) of inlet and outlet valves and turbo-supercharging device. Turbo-supercharging device includes compressor part, connected downstream to inlet side with inlet valves, and turbine part connected downstream to outlet side of outlet valves. Engine operates in the first operation mode, when it is actuated under specified load or below it, and combustion air is injected using compressor part of turbo-supercharging device. At that inlet valve is controlled by the first profile of inlet valve lifting, and air is supplied to the cylinder, fuel in engine (10) ignites by combustion engine, and outlet valve is controlled by the first profile of outlet valve lifting, and exhaust gas generated during combustion moves in turbine part of turbo-supercharging device. Engine operates in the second operation mode under load above the preset load, at that operating point of compressor part (25.1) on diagram of compressor moves far from surge line thus increasing air flow between compressor part outlet and turbine part inlet by means of valve opening period overlap increasing. Described is a control system for piston engine with turbo-supercharger.

EFFECT: improving compressor operation reliability.

17 cl, 7 dwg