Transmissions of the toroidal-race rolling-traction type
US5232414A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | May 28, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2037/088
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A two-regime, continuously-variable-ratio transmission of the toroidal-race rolling-traction type in which the variator (2) reducing epicyclic (10) and mixing epicyclic (15) are all coaxial, in which the driving connection between the variator output and the sun gear (18) of the mixing epicyclic includes a layshaft (23) or the like lying radially outboard of the reducing epicyclic, and avoids the use of a drum-like component which would surround those parts of the variator lying downstream of its output member (8). The invention also facilitates the use of gear units of equal ratio, and indeed of substantially identical structure, for the reversing (10) and mixing (15) epicyclics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.