CONTROL EXHAUST OF EXHAUST GASES AND BYPASS VALVE OF EXHAUST GASES Russian patent published in 2020 - IPC F02B37/02 F02B37/18 F01D17/10 

FIELD: machine building.

SUBSTANCE: invention can be used in the internal combustion engines. Engine control method involves changing valve position (140). Valve is located in channel, which connects first channel (100) of volute and second channel (102) of turbine (92) and communicates with bypass channel (104), bypassing flow of exhaust gases bypassing turbine. Valve is moved to the first position to increase the exhaust gas supply to the turbine when the turbine rotation speed is lower than the threshold value in the first engine load mode. In the first position, the valve is completely closed both in the first and second channels of the volute, and in the bypass channel. Valve is moved to second position to reduce exhaust gas supply to turbine, when engine rpm is lower than engine threshold speed in second engine load mode. In the second position, the valve is partially open both to the first and second channels of the volute and is completely open to the bypass channel. Transition from the first position to the third position, without passing through the second position, when the engine rpm is higher than the threshold engine rpm in the third engine load mode. In the third position, the valve is fully open both in the first and second channels of the volute and completely closed in the bypass channel. Disclosed are a system of turbo-compressor with double scroll and engine system.

EFFECT: technical result is reduction of counter pressure and surge due to effective control of boost pressure depending on engine operating parameters.

18 cl, 12 dwg