Auto-tensioner
US6471611B1 · kind B1 · utility
6Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1999 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0893
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In an auto-tensioner, a damping device is used to control a fluid communication between a first fluid chamber and a second chamber for adjusting an engagement of an idler pulley with a belt-shaped power transmission member in such a manner that when a tension thereof is decreased, a quick propulsive movement of the idler pulley to the belt-shaped power transmission member is allowed by the first urging member, while when the tension is increased, the idler pulley is retracted gradually from the belt-shaped power transmission member by a registration of the belt-shaped power transmission member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.