TRANSMISSIONS OF THE TOROIDAL-RACE ROLLING-TRACTION TYPE

摘要

A roller control system for a continuously-variable-ratio transmission of the toroidal-race rolling-traction type. The hydraulic piston-and-cylinder combination, which operates to apply tangential shift to each roller carriage and so alter the ratio transmitted by that roller, includes a non-interlocking connection between the carriage and at least one of the operating pistons that bear upon it. The invention also includes a low-resistance connection between a cylinder and its hydraulic operating circuit, a means for forming the essential structure of that circuit within the casing of the transmission itself, and forming the cylinder/circuit connection so that if the piston overshoots its permitted stroke, so indicating an "overload" condition, an obstruction is set up which causes the system pressure to rise and oppose further overshoot.