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  1. #1
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    Old open type compressor in Australia



    I am trying to recall the name of a compressor maker in Australia.

    They started out making open compressors I am not sure just how big they made them but I have seen ones up to 5 HP.

    The compressors were used for both refrigeration and air conditioning.

    Now comes the strange part, when hermetics were being use they converted their open compressors to what could loosely be called sealed units.

    Not the conventional sealed unit as these compressors had a 'dome' covering the rotor and the windings were external fitting over the 'dome'

    They used their basic open compressor but machined it to take the 'dome' to seal in the refrigerant, this 'dome' stuck out the side of the compressor with the winding covering it.

    Hence if the windings burnt out the refrigerant was not contaminated.

    Anyone remember these compressors?



  2. #2
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    Re: Old open type compressor in Australia

    Terry compressors

  3. #3
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    Jul 2010
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    Re: Old open type compressor in Australia

    Frigipole compressor? Blue coloured windings sat over rotor that was sealed in. 120 degree separated the horizontal pistons. Windings were cooled by a fan that sat on top.

    PS:Good to see someone within 20 hours drive from me posting on here
    To the optimist, the glass is half full. To the pessimist, the glass is half empty.

  4. #4
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    Re: Old open type compressor in Australia

    Thanks, I am familiar with Terry compressor but that is not the one I am thinking of.

  5. #5
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    Re: Old open type compressor in Australia

    I have not heard of a fridigpole compressor, so there is another one out there that has this same setup.

    I often wondered just how efficient a motor would be with this set up.

    Yep I live in Far North Queensland., Cairns actually.

  6. #6
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    Re: Old open type compressor in Australia

    Hi Bob
    I reckon the compressor you are thinking of was built by Coldstream and was called Rotoseal or Rotorsealed, these compressors were on an angle with the windings higher then the compressor.
    Frigopol compressors come out of Europe.
    Regards
    Paul

  7. #7
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    Re: Old open type compressor in Australia

    Many thanks, yes that is the compressor I was thinking of.
    I always thought they were a strange looking beast and wondered about how efficient a motor could be with that seal between the stator and rotor. I worked on a few of these many years ago.

    Thanks again.

    Bob

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