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  1. #1
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    Question about centrifugal compressors



    Dear Friends,

    Would you please let me know what is the meaning of this sentence ?
    "All refrigeration compressors except centrifugal compressors contain oil"

    At centrifugal compressor we do not use oil ?

    Sincerely yours.



  2. #2
    Brian_UK's Avatar
    Brian_UK is online now Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: Question about centrifugal compressors

    Generally the motor is external to the compressor and the shaft bearings are also outside of the refrigerant circuit.

    There is a lubrication system but it is <within><correction - outside> the refrigerant circuit.

    Download the manual for a Carrier 19XRV chiller and look at the lubrication diagram, it will be helpful.

    http://eto.carrier.com/litterature/i...OM_19XR_LR.pdf
    Last edited by Brian_UK; 04-03-2017 at 09:20 PM. Reason: Description wrong.
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  3. #3
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    Re: Question about centrifugal compressors

    Quote Originally Posted by Brian_UK View Post
    Generally the motor is external to the compressor and the shaft bearings are also outside of the refrigerant circuit.

    There is a lubrication system but it is within the refrigerant circuit.

    Download the manual for a Carrier 19XRV chiller and look at the lubrication diagram, it will be helpful.

    http://eto.carrier.com/litterature/i...OM_19XR_LR.pdf
    Thanks a lot Brian_UK.

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