Abstract: A supercharger for an internal combustion engine including a turbocompressor having at least one compressor impeller and a suction side and a pressure side, a flywheel mass for storing drive energy, an auxiliary motor for driving the compressor impeller and the flywheel mass, and a first shut-off element which is arranged on the suction side of the turbocompressor, the region between the first shut-off element and the compressor impeller of the turbocompressor forming a suction-side compressor air space, and the turbocompressor being designed in such a way that, after the first shut-off element is closed, the suction side compressor air space can be substantially evacuated.

Abstract: A supercharger for an internal combustion engine including a turbocompressor having at least one compressor impeller and a suction side and a pressure side, a flywheel mass for storing drive energy, an auxiliary motor for driving the compressor impeller and the flywheel mass, and a first shut-off element which is arranged on the suction side of the turbocompressor, the region between the first shut-off element and the compressor impeller of the turbocompressor forming a suction-side compressor air space, and the turbocompressor being designed in such a way that, after the first shut-off element is closed, the suction side compressor air space can be substantially evacuated.