Patent
Screw compressor with integral oil cooling
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TLDR
A screw compressor assembly includes a motor housing section, a compressor section and an oil separator downstream of the compressor discharge port as mentioned in this paper, and the motor housing is used to define an integral heat exchange structure through which a passage for the flow of oil is defined.Abstract:
A screw compressor assembly includes a motor housing section, a compressor section and an oil separator downstream of the compressor discharge port. The motor housing section defines a flow path for suction gas traveling to the working chamber of the compressor so that the compressor drive motor is cooled by suction gas. The motor housing section also internally defines an integral heat exchange structure through which a passage for the flow of oil is defined. Discharge pressure in the oil separator drives separated oil into the passage in the motor housing heat exchange structure prior to the delivery of such oil to compressor surfaces requiring lubrication. The oil flowing through the integral heat exchange structure is cooled by the suction gas passing over the surface of the heat exchange structure interior of the motor housing.read more
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References
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