Importance

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Abstract

An oil separator suitable for separating oil from vaporized refrigerant leaving the high pressure discharge side of a refrigerant compressor, and for returning the separated oil to the compressor crankcase. The oil separator includes an elongated housing having a longitudinal axis. Oil separation stages and a capillary tube are disposed within the housing. The capillary tube has a first end into which oil may flow, and a second end in fluid flow communication with an oil return outlet on the housing. The first end of the capillary tube and the oil return outlet are positioned relative to one another such that the longitudinal axis of the housing may be oriented at any selected angle in a range of ninety degrees between horizontal and vertical orientations. The capillary tube has a bore and length selected such that a predetermined refrigerant flow rate is created which carries oil to the crankcase.

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First Claim