The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2025
Filed:
Mar. 13, 2023
Danfoss Commercial Compressors, Trevoux, FR;
Thierry Legay, Nordborg, DK;
Patrice Bonnefoi, Nordborg, DK;
DANFOSS COMMERCIAL COMPRESSORS, Trevoux, FR;
Abstract
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.