Patent ID: 8549855

Claim:
A method for supplying a compressor with compressed air in an internal combustion engine, comprising the acts of: determining from at least one operating parameter of the internal combustion engine an operating state of the internal combustion engine; generating compressed air within the internal combustion engine when the determined operating state is a combustion-free operating state; operating a throttle device in an exhaust of the internal combustion engine to cause a build-up of the generated compressed air in the exhaust; and supplying the generated compressed air built up in the exhaust to the compressor, wherein the compressor is an air compressor connected to a compressed air reservoir for storing air compressed by the compressor, an inlet of the air compressor is arranged to be connected to the atmosphere via an inlet valve, and at least one controllable extraction valve is connected to the air compressor inlet via a heat exchanger configured to cool the compressed air from the at least one controllable extraction valve.