System for lubricating reverse sensor of toroidal type continuou

Details System for lubricating reverse sensor of toroidal type continuou System for lubricating reverse sensor of toroidal type continuou

1998-02-17

1999-11-30

Herrmann, Allan D.

Friction gear transmission systems or components

With lubrication

184 626, 184 35, F16H 5704, F16H 1538

Patent

active

059933496

ABSTRACT:
A reverse sensor lubrication system in a toroidal type continuously variable transmission is disclosed. The transmission includes a forward/backward mode switching mechanism, a toroidal type power transmission unit powered by the switching mechanism, a power transmission shaft driven by an output cone disc of the power transmission unit, a transmission output shaft driven by the power transmission shaft through a gear unit interposed therebetween, a speed change control valve switching means which selectively actuates a forward movement speed change control valve and a backward movement speed change control valve, a reverse sensor which is mounted on the power transmission shaft to cause the switching means to actuate the backward movement speed change control valve when the power transmission shaft is rotated in a backward direction, and a hydraulic circuit which controls operation of the transmission. The reverse sensor lubrication system comprises a first block which, when the power transmission shaft is rotated in a forward direction, lubricates the reverse sensor by using a fluid splashed by the gear unit; and a second block which, when the power transmission shaft is rotated in the backward direction, lubricates the reverse sensor by using a pressurized fluid provided by an oil pump installed in the hydraulic circuit.

REFERENCES:
patent: 5052236 (1991-10-01), Nakano

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