Friction gear transmission systems or components – Fluid control – Of toroidal transmission
Patent
1994-03-01
1995-11-07
Herrmann, Allan D.
Friction gear transmission systems or components
Fluid control
Of toroidal transmission
475214, 476 42, F16H 1538
Patent
active
054643759
ABSTRACT:
A continuously variable transmission includes friction rollers which are arranged in a toroidal groove formed between input and output disks and rotatably supported by roller support members. Hydraulic cylinder units for axially driving the roller support members are applied with a hydraulic pressure which is controlled by a forward drive speed ratio control valve in a forward drive mode, and by a reverse drive speed ratio instruction valve in a reverse drive mode. A feedback mechanism includes a precession cam provided for only one of the roller support members, which is associated with two links. These links undergo swing movement in accordance with the rotation of the precession cam, with their one ends maintained in contact with respective cam surfaces. Another ends of the links perform feedback of the speed ratio to the forward drive speed ratio control valve and the reverse drive speed ratio instruction valve, respectively.
REFERENCES:
patent: 5027669 (1991-07-01), Nakano
patent: 5052236 (1991-10-01), Nakano
Herrmann Allan D.
Nissan Motor Co,. Ltd.
LandOfFree
Friction-roller-type continuously variable transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Friction-roller-type continuously variable transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Friction-roller-type continuously variable transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-194200