Fluid passage arrangement for continuously variable transmission

Details Fluid passage arrangement for continuously variable transmission Fluid passage arrangement for continuously variable transmission

1995-03-17

1997-03-04

Ta, Khoi Q.

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

Nonplanetary transmission is belt or chain gearing

475159, 474 28, 474 43, F16H 6300

Patent

active

056073712

ABSTRACT:
A continuously variable transmission of an automotive vehicle has a start assist device, a forward-reverse changeover device, and a V-belt type transmission. The changeover device has an input shaft for receiving power from the start assist device. The V-belt type transmission has a drive shaft connected to a drive pulley. The input shaft and the drive shaft are aligned along a common longitudinal central axis. A fluid passage arrangement for the transmission includes a hydraulic fluid passage for a chamber of the drive pulley, which passage includes mutually communicating axial holes formed in the input shaft and the drive shaft. One of the axial holes communicates with a hydraulic fluid supply, while the other axial hole communicates with the chamber. The fluid passage arrangement further has lubricating fluid passages for the transmission and the changeover device. These lubricating fluid passages are formed in radially outer peripheral portions with respect to the input shaft and extend axially along the input shaft.

REFERENCES:
patent: 4526061 (1985-07-01), Sakakibara et al.
patent: 4722718 (1988-02-01), Eugen
patent: 5368528 (1994-11-01), Farrell
patent: 5439419 (1995-08-01), Yamada et al.

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