V-belt type continuously variable transmission
US4907471A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1988 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Dec 2, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19167
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
According to the present invention, there is provided a V-belt type contiuously variable transmission wherein the lowest forward speed ratio is accomplished by drivingly connecting a forward low gear to a transmission input shaft when a forward low clutch is engaged, and wherein a shift to the adjacent next low forward speed ratio higher than the lowest forward speed ratio is made when a forward high clutch is engaged with the forward low clutch kept engaged, therby to allow continuous variation of speed ratio, and wherein a reverse speed ratio is accomplished by engaging a reverse gear to the transmission input shaft when a reverse clutch is engaged. There is provided a gear train meshing with the reverse gear and arranged in parallel to the one-way clutch. Thus, a power delivery path during the reverse speed ratio is established through the reverse gear and the gear train arranged in parallel to the one-way clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.