Autonomous emergency lubrication of aircraft gearboxes
US12202599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2022 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Nov 24, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2260/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drive system for an aircraft includes a first gearbox assembly and a second gearbox assembly that is in mechanical communication with the first gearbox assembly. A first pressurized lubrication system is configured to circulate a first lubricant through the first gearbox assembly. A second pressurized lubrication system is configured to circulate a second lubricant through the second gearbox assembly. An emergency lubrication system is configured to autonomously supply a portion of the first lubricant to the second gearbox assembly responsive to a loss of pressure in the second pressurized lubrication system. The emergency lubrication system is also configured to autonomously supply a portion of the second lubricant to the first gearbox assembly responsive to a loss of pressure in the first pressurized lubrication system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.