Three way transfer valve for parallel electrohydraulic servo valve control of actuator
US12163537B1 · kind B1 · utility
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13References
20Claims
0Family size
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Key dates
| Filing date | Oct 20, 2023 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Oct 20, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/8757
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method includes using two parallel electrohydraulic servo valves EHSVs with a single transfer valve to move an actuator during a normal operation mode. The method includes upon failure of one of the EHSVs, using the single transfer valve to disconnect a non-operational one of the EHSVs and continuing to move the actuator with a functional one of the EHSVs in a backup mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.