Apparatus for producing CO2 pellets from CO2 snow and cleaning device

The invention relates to an apparatus for producing CO2 pellets from CO2 snow, in particular, for a cleaning device for spraying surfaces to be treated with a mixed stream of a pressurized gas and CO2 pellets, includes a compressor device for compressing CO2 snow to form CO2 pellets. The compressor device includes a gear compressor. The gear compressor includes at least one compressor wheel which is mounted rotatable about a first rotation axis and has a plurality of compressing elements, and includes at least one intake wheel which has a plurality of snow intakes for accepting CO2 snow. The snow intakes are configured corresponding to the compressing elements. The intake wheel is mounted rotatable about a second rotation axis and cooperates with the at least one compressor wheel. The intake wheel includes an intake wheel sleeve with an intake wheel sleeve wall.