COMPRESSOR OF COOLING CIRCUIT; COOLING CIRCUIT, AND ITS CONTROL METHOD Russian patent published in 2012 - IPC F25B31/00 

FIELD: heating.

SUBSTANCE: compressor (2) of cooling circuit includes inlet channel (6), compression element (10), outlet channel (18) in which flow (20) of gaseous cooling agent, which transfers some amount of oil, circulates during operation through inlet channel (6), compression element (10) and outlet channel (18), and oil collector (8) in which some amount of oil transferred with gaseous cooling agent is collected. Element (16) is provided for increasing the oil circulation rate, which is provided with possibility of oil transfer from oil collector (8) to cooling agent flow (20) when oil in oil collector (8) exceeds the specified oil level (24) in oil collector. Element for increasing the oil circulation rate is formed by means of bypass line (46, 54) passing between oil collector (8), essentially at the height of the specified oil level (24) in oil collector and cooling agent flow (20) in the position before compression element (10) inside or outside the compressor housing.

EFFECT: use of the invention will allow reliable and failure-free operation of refrigerating systems owing to improving the compressor reliability.

18 cl, 9 dwg