Apparatus for producing CO2 pellets from CO2 snow and cleaning device

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, comprising a compressor device for compressing CO2 snow to form CO2 pellets, wherein the compressor device comprises a gear compressor, wherein the gear compressor comprises at least one compressor wheel which is mounted rotatable about a first rotation axis and has a plurality of compressing elements, and comprising at least one intake wheel which has a plurality of snow intakes for accepting CO2 snow, said snow intakes being configured corresponding to the compressing elements, said intake wheel being mounted rotatable about a second rotation axis and cooperating with the at least one compressor wheel, wherein the intake wheel comprises an intake wheel sleeve with an intake wheel sleeve wall, wherein the snow intakes are arranged or formed in the intake wheel sleeve wall, wherein the snow intakes are configured in the form of recesses which are open in the radial direction and wherein an interior space formed by the intake wheel sleeve is configured to receive the CO2 pellets.