Aircraft propulsion assembly comprising a fire-fighting system with a line for distributing extinguishing agent
US11524192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2021 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Jun 29, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2045/009
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A propulsion assembly including a turbomachine attached to a pylon, and a fire-fighting system, the turbomachine including fire zones, the fire-fighting system including two reservoirs of pressurized extinguishing agent in the pylon and a distribution line connecting the reservoirs to nozzles. The distribution line includes connected pipes having a low point between the reservoirs and the nozzles, and, for each low point, a fluid drainage device for evacuating fluid. The drainage device includes a fluid passage for fluid evacuation from the distribution line and a mechanism for shutting off the fluid passage, the mechanism movable under effect of distribution line pressure, between a first position where it opens the fluid passage and a second position where it closes the fluid passage, the second position being reached when the pressure in the distribution line is greater than or equal to a predetermined pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.