Tensioner for a transmission belt
US4773892A · kind A · utility
8Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1987 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Apr 21, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0891
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tensioner is provided for a power transmission belt comprising a return spring associated with the axis of a tensioner roller co-operating with the belt to control the displacement of said roller under the action of said spring with hydraulic type means for the dampening of vibrations generated in the belt. The spring is covered with an elastomer forming a sleeve closed at one of its ends by an obturator for defining said hydraulic dampening means which comprise at least one variable volume chamber filled with a liquid and closed at one of its extremities by a dissymmetrical valve device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.