Hydraulically controlled infinitely variable traction roller tra

Details Hydraulically controlled infinitely variable traction roller tra Hydraulically controlled infinitely variable traction roller tra

1984-08-15

1986-03-18

Staab, Lawrence J.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

741905, 74190, F16H 1508, F16H 1500

Patent

active

045760551

ABSTRACT:
An infinitely variable traction roller transmission with traction rollers arranged between, and in engagement with, opposite toric discs for the transmission of motion therebetween includes traction roller support trunnions pivotally mounted in a transmission housing which has partially cylindrical housing cavities formed behind the trunnions, the trunnions having a hydraulic support structure including a seal plate having a curved face in engagement with the partially cylindrical housing and an opposite flat face adjacent a hydrostatic support cavity in said trunnions which permits friction-free sliding movement and pivoting of the trunnions for adjustment of the transmission ratio.

REFERENCES:
patent: 4086820 (1978-05-01), Kraus et al.
patent: 4126052 (1978-11-01), Jackman
patent: 4400987 (1983-08-01), Kraus
patent: 4434675 (1984-03-01), Kraus
patent: 4444068 (1964-04-01), Kraus
patent: 4464946 (1984-08-01), Kraus
patent: 4484487 (1984-11-01), Kraus

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