Sökning: "Roger Tuomas"
Hittade 2 avhandlingar innehållade orden Roger Tuomas.
1. Bearing lubrication of refrigeration screw compressors
Sammanfattning : The bearings in a modern refrigeration screw compressor are lubricated with a mixture of oil and refrigerant. However, little or no published bearing life data is available for the new generation non-chlorinated refrigerants. LÄS MER
2. Properties of oil and refrigerant mixtures : lubrication of ball bearings in refrigeration compressors
Sammanfattning : A refrigeration compressor contains highly loaded mechanical contacts that have to be lubricated. The lubricant used in refrigeration compressors consists of an oil and refrigerant mixture, and the refrigerant concentration can be up to 40 wt%. LÄS MER
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