Because refrigerants and refrigeration oils are miscible in one another, there will always be some oil that leaves the compressor with the refrigerant being circulated. Also, any time flooding or ...

During the normal compression cycle, as the refrigerant is discharged from a compressor a small amount of refrigerant oil will also be discharged. It is important that this discharged oil returns back ...

Years ago, it was common for shops to have a central power source that drove all the tools through a system of belts, wheels and driveshafts. The power was routed around the work space by mechanical ...