Apparatus and method for oil equalization in multiple-compressor systems

A method of operating a refrigeration system, that includes providing a plurality of compressors connected in parallel. The plurality of compressors includes a plurality of scroll compressors. The method further includes returning circulated refrigerant to the plurality of compressors, the circulate...

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Bibliographische Detailangaben
1. Verfasser:	FRASER BRUCE A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	A method of operating a refrigeration system, that includes providing a plurality of compressors connected in parallel. The plurality of compressors includes a plurality of scroll compressors. The method further includes returning circulated refrigerant to the plurality of compressors, the circulated refrigerant having oil entrained therein. Returning circulated refrigerant to the plurality of compressors includes returning more oil to one of the plurality of compressors than to another of the plurality of compressors. The method also includes supplying oil from one of the plurality of compressors to at least one other of the plurality of compressors. Supplying oil from one of the plurality of compressors includes supplying oil from the one of the plurality of compressors having an opening in its housing. A fitting is assembled into the opening. The fitting protrudes through the housing into an interior portion of the housing.