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  1. #1
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    oldham coupling(ring) in scroll compressor



    Hi
    1.what does the oldham coupling do in scroll compressors?
    2.can anyone explain me about sliding unloader bushing that used in compliant scroll compressors? please upload a picture of unloader bushing.

    please answer me with simple words, my english isn't very good
    thank you



  2. #2
    Join Date
    Aug 2006
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    Re: oldham coupling(ring) in scroll compressor

    Hi, I didn't know that those were called oldham couplings! The oldham coupling allows the moving scroll to orbit the stationary scroll without the moving scroll being able to rotate.

    I believe the unloader works by allowing the scrolls to lift apart so that the compressors stops pumping.

    There are a lot of videos on youtube that show how they work,

    https://www.youtube.com/watch?v=YNeoFebbU6I
    Mostly found in Oxfordshire, UK :)

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