Fault-tolerant electro-mechanical actuator having motor armatures to drive a ram and having an armature release mechanism
US7190096B2 · kind B2 · utility
39Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Dec 22, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19767
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electrical actuator comprises two or more electrical motors to drive a threaded screw ram. Each motor has an armature that drives a threaded roller screw that is engaged to the threaded screw ram. Each armature of each motor is independently engageable and/or dis-engageable with the ram. The motor armatures are engageable and disengageable by way of threaded roller screws, the ends of which are tapered to enable them to be lifted away from or lowered into engagement with the threaded ram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.