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  1. AzizOzturk

    Rotary Vane Air Pump Calculations

    Hello together, I need some support. I need a formula set for the volumetric, mechanical and overall efficiency and power calculations for a Rotary Vane Air Pump, which has 4 vanes and a circular cam ring / circular rotor, located eccentritically. One other question, how should I select a...
  2. AzizOzturk

    Excessive Carbon Brush Wear

    Hello together, I kindly request your support about following issue. I am currently working on a project on a DC-Motor (permanent magnets) application. The problem is excessive carbon brush wear. Both armature and brushes are made of carbon materials and there exists no chemical differences...

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