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US 11,530,853 B2Granted
Cooling system with work recovery
AssigneeHeatcraft Refrigeration Products LLC
InventorsXi Sun, Shitong Zha
Life of this patent
Estimating the term…
Abstract
An apparatus includes a first expander, a first load, a first work recovery compressor, a valve, and a first compressor. The first expander expands a refrigerant. The first load uses the refrigerant to cool a space proximate the first load. The work recovery compressor compresses the refrigerant from the first load and is driven by the first expander. The valve reduces the pressure of the refrigerant from the work recovery compressor. The first compressor compresses the refrigerant from the valve.
Claims17
An apparatus, comprising:
- a first expander configured to expand a refrigerant;
- a first load configured to use the refrigerant to cool a space proximate the first load;
- a first work recovery compressor configured to compress the refrigerant from the first load, the first expander configured to drive the work recovery compressor;
- a valve configured to reduce a pressure of the refrigerant received from the first work recovery compressor;
- a first compressor configured to compress the refrigerant from the valve;
- a second expander configured to expand the refrigerant from the first expander;
- a second load configured to use the refrigerant to cool a second space proximate the second load;
- a second work recovery compressor configured to compress the refrigerant from the second load, the second expander configured to drive the second work recovery compressor;
- and
- a second compressor configured to compress the refrigerant from the second work recovery compressor.
7 more elements
A method comprising:
- expanding, by a first expander, a refrigerant;
- using, by a first load, the refrigerant to cool a space proximate to the first load;
- driving, by the first expander, a work recovery compressor;
- compressing, by the first work recovery compressor, the refrigerant from the first load;
- reducing, by a valve, a pressure of the refrigerant received from the first work recovery compressor;
- compressing, by a first compressor, the refrigerant from the valve;
- expanding, by a second expander, the refrigerant from the first expander;
- using, by a second load, the refrigerant to cool a second space proximate the second load;
- driving, by the second expander, the second work recovery compressor;
- compressing, by a second work recovery compressor, the refrigerant from the second load;
- and
- compressing, by a second compressor, the refrigerant from the second work recovery compressor.
9 more elements
A system comprising:
- a high side heat exchanger configured to remove heat from a refrigerant;
- a first expander configured to expand the refrigerant;
- a first load configured to use the refrigerant to cool a space proximate the first load;
- a first work recovery compressor configured to compress the refrigerant from the first load, the first expander configured to drive the work recovery compressor;
- a valve configured to reduce a pressure of the refrigerant received from the first work recovery compressor;
- a first compressor configured to compress the refrigerant from the valve;
- a second expander configured to expand the refrigerant from the first expander;
- a second load configured to use the refrigerant to cool a second space proximate the second load;
- a second work recovery compressor configured to compress the refrigerant from the second load, the second expander configured to drive the second work recovery compressor;
- and
- a second compressor configured to compress the refrigerant from the second work recovery compressor.
8 more elements
Dependencies are inferred from the claim text.