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Brevini - CVT Chain Variators

Supplier: Brevini Australia

CVT, POSIDISC variable speed gear, POSICHAIN Variable speed gear and POSIMAR Generator drive

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  • CVT
    • A completely steel made chain variator works with a constant power output while changing speed and torque: also recent developments in automotive industry are based on PIV technology.
    • Variation of torque with constant power output, high efficency with torque sensor, good level performances as a result of high tech chains, independent speed control of driving and driven unit, drive management with several driven units are the most important features of CVT applications.
    • Technical Data
      Power Rating: up to 150 kW
      Speed range: R= 2,4 up to 6

  • POSIDISC variable speed gear
    • The spherical disc gear POSIDISC is the 'all-rounder' amongst the infinitely variable speed gears from PIV: easy maintenance, favourable behaviour in extreme operating conditions and the speed adjustement both during operation and at standstill, make it very interesting.
    • The gear is completely insensitive to jolt operation. Even if the output is blocked per short times, no damage occurs: a starting or safety clutch is not needed. Operating factors need not be specified for dimensioning, the gear can be run with its catalogue torque in continuous operation.
    • Technical Data
      Variation Ratio: 6 – 10 or up to output speed = 0
      Power Rating: up to 3 kW

  • POSICHAIN Variable speed gear
    • The PIV POSICHAIN (A200 and RH series) gear is the 'classic' infinitely variable speed gear from PIV.
    • The most important features are:
      • Simple maintenance and high efficiency that enables economical solutions, even in continuous operation, and high speed setting accuracy.
      • The features of the 'torque converter' permit high torques at small speeds.
      • Extensive accessories such as regulating device, tachometer, position response synchro, limit switch extensions and speed governor are also avaible.
      • High system protection for operation in dirty environments.
    • Technical Data
      Torque (T2max): up to 160.000 Nm
      Speed range R= 2 – 3 – 4 and 6
      Power Rating: up to 175 kW

  • POSIMAR Generator drive
    • The POSIMAR generator drive is the ideal adaptation between the varying-speed motor (ship's engine, railway engine, generator motor etc.) and the constantly-rotating power generator.
    • An electro-hydraulic control integrated in the gear adjusts the ratio so that the generator speed is kept constant to 1%.
    • Technical Data
      Variation Ratio: up to 6
      Power Rating: up to 400 kW

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