Modular CO2 refrigeration system

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United States of America Patent

PATENT NO 9470435
APP PUB NO 20140102132A1
SERIAL NO

14137072

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Abstract

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A cascade CO2 refrigeration system includes a medium temperature loop for circulating a medium refrigerant and a low temperature loop for circulating a CO2 refrigerant. The medium temperature loop includes a heat exchanger having a first side and a second side. The first side evaporates the medium temperature refrigerant. The low temperature loop includes a discharge header for circulating the CO2 refrigerant through the second side of the heat exchanger to condense the CO2 refrigerant, a liquid-vapor separator collects liquid CO2 refrigerant and directs vapor CO2 refrigerant to the second side of the heat exchanger. A liquid CO2 supply header receives liquid CO2 refrigerant from the liquid-vapor separator. Medium temperature loads receive liquid CO2 refrigerant from the liquid supply header for use as a liquid coolant at a medium temperature. An expansion device expands liquid CO2 refrigerant from the liquid supply header into a low temperature liquid-vapor mixture for use by the low temperature loads.

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Patent Owner(s)

Patent OwnerAddress
DOVER SYSTEMS INC2180 SATELLITE BOULEVARD SUITE 350 DULUTH GA 30097

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gallaher, John M Atlanta, US 2 22
Hinde, David K - 14 243
Lan, Lin Loganville, US 8 24
Martin, J Scott Conyers, US 12 155
Zha, Shitong Snellville, US 26 45

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