Electro hydraulic actuator with spring energized accumulators
US7356990B2 · kind B2 · utility
4Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Sep 3, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B1/022
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electro hydraulic actuator with built-in fail safes is provided. Multiple accumulators are integrated into the actuator to improve reliability and redundancy. One or more accumulators can fail and the remaining accumulators provide sufficient energy to move the actuator to its fail-safe condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.