A scroll compressor, often called scroll pump and scroll vacuum pump, takes advantage of two interleaved spiral-like vanes to pump or compress fluids such as liquids and gases. In hermetic and many semi-hermetic compressors, the compressor and motor driving the compressor are built-in, and operate within the pressurized fuel envelope http://ktp-price.de/maximale-effizienz-tipps-und-tricks-fur-die-effektive-nutzung-eines-kompressors/