(Incremental, Continuously Variable Transmission)

The Best of Both Worlds

The Naudic iCVT from Barloworld CVT Technologies combines the best of CVTs and AMTs. The concept is based on a variable sprocket which alters ratios by either adding or removing a single tooth in the process of the chain engaging the sprocket. The primary difference between the Naudic innovation and the many other conventional CVTs on international patent databases, is that most of the others lack proper synchronisation, relegating them to very low rpm, low power applications such as in bicycles.

World's Only Working, Frictionless, Positive Drive CVT

The Naudic iCVT allows for very small incremental ratio shifts (typically 2%-5%), over a wide ratio range (typically 64 ratios in a ratio range factor of 6.5). Shifting is performed under full load with no interruption of drive power in the transmission itself, and with full mechanical positive drive at all times.

Remarkably, the efficiency of the Naudic iCVT can be compared to that of a chain and sprocket set. The concept embraces a variable, partial positive drive engaging a chain between two conical discs, which exits through a chain throat.

Extensive research has shown this to be the only prototype-proven, positive drive CVT system in the world and is fully protected through patents.

(The operation of the iCVT can be seen on activating the animation replay).