Infinitely variable traction roller transmission

Details Infinitely variable traction roller transmission Infinitely variable traction roller transmission

1980-12-18

1983-06-07

Dorner, Kenneth

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74196, F16H 1516

Patent

active

043865364

ABSTRACT:
A traction roller transmission with traction rollers arranged between and in engagement with toric discs for the transmission of motion therebetween includes traction roller support trunnions which are pivotally supported by saddles nested in curved sections of a force balancing band structure which extends around all the traction rollers. The saddles and trunnions have support surfaces with a curvature whose centerline is a tangent to the center circle to the toroidal cavity formed between the discs to permit pivoting of the trunnions for a change of the transmission ratio. The trunnions extend axially through openings in the balancing bands and have pistons at their ends disposed in cylinders to which pressurized fluid can be supplied to cause axial precess movement of the trunnions for initiation of a change of the transmission ratio.

REFERENCES:
patent: 2931234 (1960-04-01), Hayward
patent: 3413864 (1968-12-01), Magill et al.
patent: 3802284 (1974-04-01), Sharpe et al.
patent: 4086820 (1978-05-01), Kraus et al.
patent: 4275610 (1981-06-01), Kraus
patent: 4314485 (1982-02-01), Adams

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