VAPOR INJECTION REFRIGERANT SYSTEMS
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United States of America
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Issued Date -
Nov 7, 2024
app pub date -
May 5, 2023
filing date -
May 5, 2023
priority date (Note) -
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Abstract
A vapor injection refrigerant system includes a compressor, a condenser coupled to the compressor, an evaporator coupled to the condenser, and a chiller coupled to the condenser. The compressor includes at least a first stage and a second stage and is configured to output refrigerant in vapor form. The chiller is configured to inject refrigerant in vapor form into the second stage of the compressor. Additionally, the system may include a three-way valve having a first outlet coupled to the second stage of the compressor and a second outlet coupled to an outlet of the evaporator, and a control module configured to control the three-way valve to inject refrigerant in vapor form into the second stage of the compressor at a pressure greater than a pressure of the first stage of the compressor. Other example vapor injection refrigerant systems are also disclosed.
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