Automated galley fire protection system

Patent metadata

Field	Value
Publication number	US-10450076-B2
Application number	US-201514867867-A
Country	US
Kind code	B2
Filing date	Sep 28, 2015
Priority date	Sep 28, 2015
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

Aspects of the present disclosure relate to systems and methods for automated fire detection, such as in aircraft galleys, or other areas where power sources may result in fire or smoke. The system includes one or more detectors to monitor for smoke or fire in an aircraft galley. Upon detection of smoke or fire, a signal is sent from the one or more detectors to a controller. In response to the incoming signal, the controller sends a signal to a galley power source. The signal provided to the galley power source ceases the application of power to one or more devices located in the galley, extinguishing the source of the fire or smoke. The controller may also send a notification signal to alert the crew to the potential fire hazard. A method of operation is also disclosed.

First claim

What is claimed is:

1. A galley fire protection system, comprising:
at least one detector positioned in an aircraft galley; and
a controller that receives signals from the at least one detector, wherein upon receipt of a signal from the detector indicating the presence of fire or smoke in the galley, the controller is configured to:
determine which devices within the aircraft galley are receiving power, the determining including interrogating a galley power source;
transmit a first signal to an alert device; and
transmit a second signal to a galley power source to remove power from one or more of the devices receiving power within the aircraft galley, thereby extinguishing the source of the fire or the smoke.

2. The galley fire protection system of claim 1 , wherein the alert device is located within a flight deck of an aircraft.

3. The galley fire protection system of claim 1 , wherein the at least one detector is a plurality of detectors, and each detector of the plurality of detectors is positioned adjacent to a food or beverage preparation device within the aircraft galley.

4. The galley fire protection system of claim 1 , wherein the at least one detector is a single, centrally-located detector within the aircraft galley.

5. The galley fire protection system of claim 1 , wherein the controller is connected to a second detector positioned in a second aircraft galley.

6. The galley fire protection system of claim 1 , wherein the detector comprises a photoelectric detector.

7. The galley fire protection system of claim 1 , wherein the detector comprises an ionization detector.

8. The galley fire protection system of claim 1 , wherein the detector comprises a photoelectric detector and an ionization detector located in a common detector housing.

9. The galley fire protection system of claim 1 , wherein the controller is connected to the at least one detector by a wireless signal.

10. The galley fire protection system of claim 1 , wherein the controller is connected to the at least one detector by a wired signal.

11. A galley fire protection system, comprising:
one or more detectors positioned in an aircraft galley, wherein each of the one or more detectors correspond to and are positioned within close proximity to an electrical device within the aircraft galley; and
a controller that receives signals from the one or more detectors, wherein upon receipt of a signal from the one or more detectors indicating the presence of fire or smoke in the galley, the controller is configured to:
determine which devices within the aircraft galley are generating the fire or the smoke based upon which of the one or more detectors provides the signal to the controller, wherein interrogating a galley power source is used to determine which devices within the aircraft galley are receiving power;
transmit a first signal to an alert device; and
transmit a second signal to a galley power source to remove power from one or more of the devices receiving power within the aircraft galley, thereby extinguishing the source of the fire or the smoke.

12. The galley fire protection system of claim 11 , wherein the alert device is located within a flight deck of an aircraft.

13. The galley fire protection system of claim 11 , wherein the one or more detectors comprises a photoelectric detector.

14. The galley fire protection system of claim 11 , wherein the one or more detectors comprises an ionization detector.

15. The galley fire protection system of claim 11 , wherein the one or more detectors comprises a photoelectric detector and an ionization detector located in a common detector housing.

16. The galley fire protection system of claim 11 , wherein the controller is connected to the one or more detectors by a wireless signal.

17. The galley fire protection system of claim 11 , wherein the controller is connected to the one or more detectors by a wired signal.

18. A method of extinguishing a fire hazard in an aircraft galley, comprising:
receiving, at a controller, a signal from a detector positioned in the aircraft galley, the signal indicating the presence of smoke or fire in or near the aircraft galley;
in response to receiving the signal from the detector:
interrogating a galley power source to determine which devices within the aircraft galley are receiving power;
transmitting a first signal to the galley power source to remove power from one or more devices located within the aircraft galley; and
transmitting a second signal to an alert device to inform an aircraft crew member of the presence of smoke or fire in the aircraft galley.

19. The method of claim 18 , wherein the galley power source includes a relay or circuit breaker, and sending the first signal to the galley power source causes the relay or circuit to trip.

Assignees

• Boeing Co

Inventors

• Meis Charles Steven
• Meis Rachel
• Meis Jon Christopher

Classifications

• B64D2045/009

  Fire detection or protection; Erosion protection, e.g. from airborne particles · CPC title

• A62C3/16

  in electrical installations, e.g. cableways · CPC title

• G08B17/00

  Fire alarms; Alarms responsive to explosion · CPC title

• B64D25/00 Primary

  Emergency apparatus or devices, not otherwise provided for · CPC title

• A62C3/08

  in aircraft {(A62C3/0207 takes precedence)} · CPC title