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AssigneeAlfred Kärcher GmbH & Co. KG
InventorsRuwantha De Silva, Juergen Gassmann, Henning Hayn, Dieter Plachke
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The present invention relates to a device for producing high-strength CO2 pellets from CO2 snow, in particular, for a cleaning device for blasting surfaces to be treated with a mixed-flow consisting of a compressed gas and CO2 pellets, including a main compressing device for compressing CO2 snow for forming CO2 pellets, further including a pre-compressing device for pre-compressing CO2 snow produced by expanding liquid CO2, wherein the pre-compressing device is in the form of a fluid-mechanical pre-compressing device, wherein the pre-compressing device includes an expansion device for producing CO2 snow from liquid or gaseous CO2 and a pre-compression chamber for receiving and pre-compressing the produced CO2 snow and wherein the expansion device and the pre-compression chamber are connected to one another in fluidic manner.
A device for producing high-strength CO2 pellets from CO2 snow, in particular, for a cleaning device for blasting surfaces to be treated with a mixed-flow consisting of a compressed gas and CO2 pellets, comprising a main compressing device for compressing CO2 snow for forming CO2 pellets, further comprising a pre-compressing device for pre-compressing CO2 snow produced by expanding liquid CO2, wherein the pre-compressing device is in the form of a fluid-mechanical pre-compressing device, wherein the pre-compressing device comprises an expansion device for producing CO2 snow from liquid or gaseous CO2 and a pre-compression chamber for receiving and pre-compressing the produced CO2 snow and wherein the expansion device and the pre-compression chamber are connected to one another in fluidic manner.
A cleaning device for blasting surfaces to be treated with a mixed-flow consisting of a compressed gas and CO2 pellets, further comprising a device for producing high-strength CO2 pellets from CO2 snow, said device for producing high-strength CO2 pellets comprising a main compressing device for compressing CO2 snow for forming CO2 pellets, further comprising a pre-compressing device for pre-compressing CO2 snow produced by expanding liquid CO2, wherein the pre-compressing device is in the form of a fluid-mechanical pre-compressing device, wherein the pre-compressing device comprises an expansion device for producing CO2 snow from liquid or gaseous CO2 and a pre-compression chamber for receiving and pre-compressing the produced CO2 snow and wherein the expansion device and the pre-compression chamber are connected to one another in fluidic manner.
Dependencies are inferred from the claim text.