Patent ID: 9683495
Date: 2017-06-20
CPC Classifications: F02B,F02D,F02P,H02P,Y02T

Claim:
1. A method of operating an internal combustion engine coupled to a generator in the event of a grid fault of a power supply grid connected to the generator, wherein the internal combustion engine includes a turbocharger having a compressor in an air feed duct of the internal combustion engine and an exhaust gas turbine coupled to the compressor in an exhaust gas duct of the internal combustion engine, wherein there is provided at least one bypass valve for bypass of the compressor and/or for bypass of the exhaust gas turbine, wherein, upon or after detection of the grid fault, the at least one bypass valve is at least temporarily actuated, wherein ignition in the internal combustion engine is deactivated upon or after detection of the grid fault, wherein the ignition in the internal combustion engine is activated again after the grid fault disappears, and wherein the at least one bypass valve has a first position prior to detection of the grid fault, wherein, upon or after detection of the grid fault, the at least one bypass valve is set to an actuation position differing from the first position, and wherein the at least one bypass valve is set to a position differing from the actuation position and the first position after the grid fault disappears.