Friction gear transmission systems or components – Friction gear includes idler engaging facing concave surfaces – Toroidal
Patent
1995-05-18
1997-08-12
Marmor, Charles A.
Friction gear transmission systems or components
Friction gear includes idler engaging facing concave surfaces
Toroidal
476 39, F16H 1538
Patent
active
056559895
ABSTRACT:
A toroidal type continuously variable transmission has input and output conical disks having opposingly-curved conical faces, and a power roller tiltably positioned between and abutting the conical faces of the input and output disks. The power roller frictionally contacts the conical faces to transmit rotational movement between the input and output disks. The power roller is tiltable about a tilting axis that extends perpendicularly to a rotational axis of the power roller to provide a continuous variation of speed ratio between the input and output disks by tilting the power roller. The radius of the curvature of the conical face that defines the input-disk conical face is reduced in the lower speed region to increase the speed ratio between the input and output disks, compared with the main curvature radius in the higher speed region. The radius reduction increases the surface area (the contacting oval) of the conical face, providing a surface pressure reduction in the lower speed transmitting ratio region.
REFERENCES:
patent: 2020677 (1935-11-01), Erban
patent: 5263907 (1993-11-01), Fellows
1989 JSAE Spring Convention Proceedings 1989-5, pp. 167-170, Published in 1989 by Society of Automotive Engineers of Japan.
Fenstermacher David M.
Marmor Charles A.
Nissan Motor Co,. Ltd.
LandOfFree
Toroidal 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 Toroidal type continuously variable transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toroidal type continuously variable transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-156457