Filtering pulley for a belt drive
US9850997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2014 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Aug 6, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2055/366
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A filtering pulley for an accessory drive of an internal combustion engine, having a hub suitable for connection to an engine accessory, an annular crown provided with a profile configured to cooperate with a drive belt, a coil spring able to transmit torque between the crown and the hub, a first carrier constrained to a first end of the spring and a second carrier constrained to a second end of the spring. The annular crown is externally coaxial to the hub and supported in a rotationally free manner on the hub, and each of the carriers is rotationally coupled to both the hub and the crown with a limited possibility of relative rotation with respect to each of them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.