Transmission of the toroidal-race, rolling-traction type having a mixer and a reducer epicyclic type gearing with clutches brakes
US5401221A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Feb 4, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2037/0886
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A continuously variable transmission with coaxial input (from 6) and output (17), capable of operating in at least two regimes, and having a variator (2) of the toroidal-race rolling-traction type, and gearing including both a speed reducing unit (10) and an epicyclic mixing gear unit (15) in which the components of the mixing gear unit are locked up in at least one of the regimes, and in which the speed-reducing unit (10) effects its speed-reduction without reversal of the direction of rotation between its input (1) and output (from 26). The operating axis (5) of the variator (2) may either coincide with the coaxial input and output of the transmission (FIG. 2 ) or be parallel to but displaced from it (FIG. 3 ). In addition to a brake (13) and a clutch (20), operable to engage first and second regimes, a further clutch (48) operable to engage a third regime is shown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.