TOROTRAK REVVING UP

Just a reminder for those who believe TRK is the only player in the IVT league. NSK/Jatco/Nissan also have a story to tell. They believe their system is better (than a full T) and have long since had it in production. This is in stark contrast to TRK who not only claim their IVT is better (than a Half T), but also that everyone else is 10years behind them. Someone is telling porkies...

"NSK Ltd. revealed details of the design and development of its Powertoros Unit half-toroidal CVT, as used since 1999 in the Japanese-market Nissan Cedric and Gloria models. The toroidal version differs from the belt-driven one in that it uses a spinning power roller to transfer force between disks. The reduction ratio depends on the power roller angle, which determines where it contacts the input disk powered by the engine and the drive disk on the output side of the transmission".

"The difference between the half- and full-toroidal CVT is that the half-toroidal design uses a more efficient hemispherical geometry rather than a fully spherical geometry between the input and output disks. The hemispherical geometry reduces the power roller angle, trimming the spinning losses compared to a full-toroidal design".

"By anticipating the dynamic expansion of demand across Japan, U.S. and Europe, NSK is aggressively developing business for POWERTOROS UNIT mounted-CVT-systems on a global scale".