Transmission Cvtcorp Inc.

Kenneth Huston

François Messier

Samuel Beaudoin

Mathieu Guertin

Paul Okulov

Jean-Robert Desmeules

Alexandre Blouin

Rémi Tremblay

Christian McMahon

David Gauthier Roy

Patrick Cyr Gagné

Patrick Raymond

A cooling arrangement to cool the rollers of a toroidal CVT is described herein. The cooling arrangement includes nozzles so configured and sized as to project cooling fluid onto the edge and onto the opposite top and bottom surfaces of the roller.

Roller cooling arrangement for toroidal CVT

A method where the spin factor is looked up in a table; the slip factor is measured and the clamping pressure is adjusted to achieve a slip/spin ratio provided in a desired range is described herein. According to another aspect, an active mechanical clamping mechanism using a longitudinally movable contact point is also described.

Over clamping protection method and clamping mechanism therefor

A roller position control mechanism including a steering element, positioned inside the bearing of each roller and provided with a skew shaft and a steering shaft defining an angle therebetween. A spider element fixes the steering element to a longitudinal shaft of the CVT and a control ring element interconnects the steering elements of the various rollers. Movement of the control ring element with respect to the spider element translates to a tilting movement of the rollers, thanks to the angle between the skew and steering shafts.

Roller position control in a Toric-drive CVT

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Montréal, Canada

Kenneth Huston