Electric motor with static brake
US8820489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electric motor for driving a vehicle wheel includes a parking brake that is selectively applied to provide a park brake condition. The parking brake is a clutch style brake and includes a sliding brake disk that is mounted for rotation with a motor shaft. A brake piston is used to move the sliding brake disk into engagement with a motor housing to achieve a park applied position. The parking brake is held in a release position by a hydraulic system that exerts a fluid pressure force against the brake piston. A resilient mechanism cooperates with the brake piston to apply the parking brake once the fluid pressure force is diminished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.