Continuously variable transmission
US6435994B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/662
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A continuously variable transmission or an analogous torque transmitting system has two rotary members in the form of wheels, gears or pulleys (such as adjustable pulleys) which are rotatable about parallel axes. An endless flexible element in the form of a link chain, pintle chain or belt has arcuate portions trained over the rotary members and elongated reaches or stretches extending between the arcuate portions. At least one of the stretches is at least partially confined in but movable lengthwise relative to an elongated rail or another suitable guide which at least reduces lateral stray movements of the respective stretch. This reduces noise as well as the wear upon the endless flexible element and the rotary members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.