Danfoss Commercial Compressors

Thierry Legay

Patrice Bonnefoi

The multi-compressor system has a plurality of parallelly coupled compressors; inlet connection lines each connected to a refrigerant suction fitting of a respective compressor; outlet connection lines each connected to a refrigerant discharge fitting of a respective compressor; a common oil balancing line and balancing connection lines each connecting the common oil balancing line to an oil balancing connection of a respective compressor; and spring-loaded normally-open valves each being arranged within a respective balancing connection line or within an oil balancing connection of a respective compressor and each being configured to close when a pressure difference between a pressure prevailing in the low pressure volume of the respective compressor and a pressure prevailing in the common oil balancing line reaches a predetermined value.

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Nordborg, Denmark

Thierry Legay