Method of measuring the compression of a shock absorber, and an airplane undercarriage constituting an application thereof
US7454275B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Mar 24, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2230/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An airplane undercarriage including a shock absorber having first and second portions that are movable relative to each other. The undercarriage further including a first wave transceiver assembly disposed on the first movable portion. The assembly includes a first transmitter for transmitting a first wave towards the second movable portion and a first receiver for receiving the first wave after it has been reflected on an obstacle formed by a mechanical part secured to the second movable portion. The undercarriage also includes an independent second wave transceiver assembly disposed on the first movable portion. The second assembly includes a second transmitter for transmitting a second wave towards the second movable portion, and a second receiver for receiving the second wave after it has been reflected on an obstacle formed by a free surface of a hydraulic fluid contained in the shock absorber or a mechanical part defining the free surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.