Magnet-based anti-cogging apparatuses and systems for applying an anti-cogging torque on a rotating shaft
US9447728B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 19, 2014 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Jun 26, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2101
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An anti-cogging apparatus includes a first support member, a second support member, a first set of magnets, and a second set of magnets. The first support member is configured to be connected to and rotate with a rotatable shaft. The second support member does not rotate and is configured not to move with the first support member. The first set of magnets is mounted on the first support member in an alternating polarity or a non-alternating polarity configuration. The second set of magnets is mounted on the second support member in an alternating polarity configuration or a non-alternating polarity configuration. The first set of magnets magnetically interacts with the second set of magnets to provide an anti-cogging torque on the rotatable shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.