| CPC F25B 9/004 (2013.01) [F25B 9/06 (2013.01)] | 25 Claims |
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1. A gas refrigerating machine comprising:
an input for a gas to be cooled;
a recuperator;
a compressor comprising a compressor input, the compressor input being coupled to a first recuperator output;
a heat exchanger;
a turbine; and
a gas output,
wherein the recuperator is rotationally symmetrical, wherein an axis of symmetry of the recuperator coincides with an axis of the compressor, or an axis of the turbine, or an axis of a rotor of a drive motor, or an axis of the gas output, or an axis of the input for the gas to be cooled, or an axis of a suction region of the recuperator, and
wherein a housing comprises an elongated shape, the input for the gas to be cooled comprises a plurality of perforations in an upper portion with respect to an operating direction of the gas refrigerating machine of the housing or a wall of the recuperator, and the gas output comprises an opening in a lower region of the housing with an opening area which is at least 50% of a cross-sectional area of the housing in the upper region, or
wherein the recuperator comprises interconnected first gas channels from a first recuperator input to the first recuperator output and comprises second interconnected gas channels between a second recuperator input and a second recuperator output, wherein the first gas channels and the second gas channels are arranged in thermal interaction, the recuperator comprising, at the second recuperator input, a first collection region connecting the second gas channels on one side and extending along an inner region and forming the second recuperator input, and a second collection region connecting the second gas channels on another side and extending along an edge portion of an outer region and forming the second recuperator output, wherein an intake wall delimits the first collection region and separates the first collection region from the suction region, or
wherein the turbine comprises a turbine input, and wherein the turbine input is connected to a second recuperator output via a connection region, the connection region extending around the heat exchanger, or
wherein the recuperator comprises a volume completely enclosing a suction region, the suction region and the volume of the recuperator extending by a distance greater than 10 cm away from the compressor input, and wherein the input for the gas to be cooled is formed by first ends of first gas channels, wherein second ends of the first gas channels open into the suction region, and wherein the first gas channels are distributed throughout the volume to direct gas into the suction region from multiple sides.
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