Compression mechanism oil equalizing circuit, refrigeration...

Details Compression mechanism oil equalizing circuit, refrigeration... Compression mechanism oil equalizing circuit, refrigeration...

2005-09-13

2005-09-13

Ali, Mohammad M. (Department: 3744)

Refrigeration

Refrigeration producer

With lubricant handling means

C062S510000

Reexamination Certificate

active

06941767

ABSTRACT:
The present invention provides an oil equalizing circuit that can improve the reliability of the oil supply to the compression mechanisms in a refrigeration system provided with a plurality of compression mechanisms. The compressor group of the air conditioning system is equipped chiefly with first, second, and third compressors and an oil equalizing circuit. The oil equalizing circuit is equipped with the first, second and third oil separators provided on the discharge sides of the compressors; first, second, and third oil return pipes connecting the oil separators to the intake sides of the compressors; a communication pipe for allowing the oil return pipes to communicate with one another; first, second, and third oil ON-OFF switching mechanisms provided downstream of the parts where the oil return pipes connect to the communication pipe; and first, second, and third pressure reducing mechanisms provided upstream of the parts where the oil return pipes connect to the communication pipe.

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