US 11,691,039 B2
Aircraft comprising a propulsion assembly and a fire-fighting system for the propulsion assembly
Thierry Clavel, Toulouse (FR); Stéphane Pugliese, Toulouse (FR); Arnaud Guichot, Toulouse (FR); and Nicolas Brachet, Blagnac (FR)
Assigned to Airbus Operations (S.A.S.), Toulouse (FR)
Filed by Airbus Operations (S.A.S.), Toulouse (FR)
Filed on May 12, 2021, as Appl. No. 17/318,684.
Claims priority of application No. 2004694 (FR), filed on May 13, 2020.
Prior Publication US 2021/0353986 A1, Nov. 18, 2021
Int. Cl. A62C 3/08 (2006.01); A62C 37/40 (2006.01)
CPC A62C 3/08 (2013.01) [A62C 37/40 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An aircraft comprising:
a cockpit;
at least one propulsion assembly, each propulsion assembly of the at least one propulsion assembly comprising a first compartment and a second compartment, the first compartment and the second compartment each comprising one or more fire zones; and
a fire-fighting system dedicated to each propulsion assembly of the at least one propulsion assembly, each fire-fighting system comprising:
two reservoirs, each reservoir of the two reservoirs containing an extinguishing agent;
a control that is associated with each reservoir of the two reservoirs and is configured for actuation by a pilot, wherein, when actuated, the control is configured to open the reservoir with which the control is associated for releasing the extinguishing agent from the reservoir with which the control is associated;
a bypass valve;
a set of pipes connecting, through the bypass valve, each reservoir of the two reservoirs to each of the fire zones of the at least one propulsion assembly with which the fire-fighting system is dedicated;
wherein the fire-fighting system is configured:
to detect a fire in the at least one propulsion assembly to which the fire-fighting system is dedicated; and
emit, when the fire is detected in the at least one propulsion assembly to which the fire-fighting system is dedicated, a fire alert signal for a visual or audible transducer situated in the cockpit;
when a fire is detected in the one or more fire zones in the first compartment, to control the bypass valve to adopt a controlled state, in which, after activation of the control associated with one or both of the two reservoirs, the extinguishing agent in the one or both of the two reservoirs is expelled towards the one or more fire zones in the first compartment;
otherwise, to control the bypass valve to adopt a default state, in which, after activation of the control associated with one or both of the two reservoirs, the extinguishing agent in the one or both of the two reservoirs is expelled towards the one or more fire zones in the second compartment.