Van Doorne's Transmissie B.v.

Skf Industrial Trading & Development Company, B.v.

Pieter Abraham Veenhuizen

Bas Gerard Vroemen

Marc Andre Mussaeus

Alexander F A Serrarens

Ro&euml;ll M Van Druten

Antonio Gabelli

Gerardus De Vries

Hendrikus Adrianus Arnoldus Wilhelmina Pelders

A continuous variable transmission includes a pair of pulleys forming V-shaped grooves for receiving an endless transmission element for transmitting torque between the pulleys. Each pulley includes at least one axially movable sheave which may be urged axially in the direction of the transmission element by an urging element effecting a clamping force between the sheave and the transmission element, the effected clamping force corresponding to a force sufficient for transmitting a torque to be transmitted by at least virtually slipless friction between the pulley sheaves and the belt, increased by a safety margin expressed as a factor corresponding to a percentage of the torque to be transmitted throughout a major part of the range of torques transmittable to the relevant transmission.

Continuously variable transmission and control method therefor

A drive assembly for operatively connecting at least one drive input unit and at least one drive output unit in a motorized vehicle, including a transmission unit, with an epicyclic gearing operatively arranged in parallel to the transmission unit, one rotational member of the epicyclic gearing being provided with a flywheel function.

Vehicle drive assembly

The present invention relates to a transmission system, especially for use in a motorized vehicle. More particularly, the present invention discloses the use of a flywheel for assisting an engine in speeding up when acceleration is requested. The flywheel ( ) is coupled to an epicyclic gearing (G) having three rotational members ( ); this epicyclic gearing (G) is further coupled to a load (L) and to an engine (E), in parallel to a transmission unit (MT; CVT).

Transmission system, especially for a motor vehicle

A rolling element bearing includes an outer ring and an inner ring which enclose a bearing space containing rolling elements. The rings are made of steel. At least one of the rolling elements comprises, at least partially as a zirconium material which is harder and stiffer than the material of the other rolling elements which are comprised of steel. Walls of indentations which are formed in the rings by solid contamination particles between the rings and one of the rolling elements having about the same hardness as the rings, are compressed as soon as the zirconium material rolling element with a substantially higher hardness than the rings overrolls the walls. Thereby, the smooth characteristic of the raceways is restored. Only small holes are left in the rings, which do not have a negative influence on the running properties of the bearing. In these small holes, minute quantities of lubricating oil are collected, which help the lubrication of the rolling elements in case of oil starvation.

Growing community of inventors

Goirle, Netherlands

Pieter Abraham Veenhuizen