Spoiler droop function with mechanical feedback driving hydraulic valve
US11312475B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Jun 1, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/8633
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for detecting and controlling the position of a spoiler of an aircraft wing is described herein comprising: a hydraulic actuator having a piston rod operably connected to the spoiler, the piston rod being moveable between a retracted position, a neutral position and an extended position; and means for providing power to said hydraulic actuator; and a mechanical device for detecting whether the piston rod is in the retracted position, the neutral position or the extended position; and means, operatively connected to the mechanical device, that is configured to provide a change in a load applied to said hydraulic actuator, wherein said means is configured to change said load based on whether said piston rod is detected as being in said retracted position or said extended position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.