System, method, and apparatus for smoke mitigation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B64D-013/00
B64D-025/00
B64C-001/14
G01C-005/00
B64D-045/00
출원번호
US-0332488
(2014-07-16)
등록번호
US-9802707
(2017-10-31)
발명자
/ 주소
Khera, Jagtar S.
출원인 / 주소
Khera, Jagtar S.
대리인 / 주소
Larson & Larson, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
10
초록▼
A smoke mitigation system for an aircraft includes an exhaust shutter in an upper region of a fuselage of the aircraft. The exhaust shutter has a closed position in which the exhaust shutter does not exchange air from outside of the fuselage with air inside of a passenger cabin that is within the fu
A smoke mitigation system for an aircraft includes an exhaust shutter in an upper region of a fuselage of the aircraft. The exhaust shutter has a closed position in which the exhaust shutter does not exchange air from outside of the fuselage with air inside of a passenger cabin that is within the fuselage and an open position in which the exhaust shutter exchanges air from outside of the fuselage and inside of the passenger cabin, thereby enabling escape of smoke from the passenger cabin. The system includes one or more devices for opening the exhaust shutter and a device for initiating opening of the exhaust shutter. The device for initiating opening of the exhaust shutter includes mechanisms for determining that it is safe to open the exhaust shutter.
대표청구항▼
1. A smoke mitigation system for an aircraft, the smoke mitigation system comprising: an exhaust shutter in an upper region of a fuselage of the aircraft, the upper region being on an opposite side of the fuselage than a landing gear, the exhaust shutter having a closed position in which the exhaust
1. A smoke mitigation system for an aircraft, the smoke mitigation system comprising: an exhaust shutter in an upper region of a fuselage of the aircraft, the upper region being on an opposite side of the fuselage than a landing gear, the exhaust shutter having a closed position in which the exhaust shutter does not allow an exchange of air from outside of the fuselage with air inside of a passenger cabin within the fuselage, and the exhaust shutter having an open position in which the exhaust shutter allows the exchange air from the outside of the fuselage with the air/smoke from inside of the passenger cabin, thereby enabling escape of the smoke from the passenger cabin;means for opening the exhaust shutter; andmeans for initiating opening of the exhaust shutter; wherein the means for initiating opening of the exhaust shutter is triggered by detection of smoke coupled with both a signal indicating that the aircraft is traveling at an airspeed of less than a maximum allowable airspeed and a signal indicating that the aircraft is at an altitude above ground level that is less than a maximum allowable altitude above the ground level. 2. The smoke mitigation system of claim 1, wherein the means for opening and closing the exhaust shutter comprises a resilient member coupled to the exhaust shutter, the resilient members urging the exhaust shutter into the open position, the exhaust shutter held in the closed position by an electrically controlled lock whereas release of the electrically controlled lock allows the resilient member to move the exhaust shutter to the open position. 3. The smoke mitigation system of claim 1, wherein the means for opening and closing the exhaust shutter comprises an actuator coupled to the exhaust shutter, the actuator configured to move the exhaust shutter between the closed position and the open position. 4. The smoke mitigation system of claim 3, further comprising an electrically controlled lock whereas release of the electrically controlled lock allows the actuator to move the exhaust shutter from the closed position to the open position. 5. The smoke mitigation system of claim 1, wherein the means for initiating opening of the exhaust shutter is a manual switch operated by an operator of the aircraft. 6. The smoke mitigation system of claim 1, wherein the means for initiating opening of the exhaust shutter is a manual switch operated by an operator of the aircraft and a signal indicating that the aircraft is on the ground as detected by a sensor, the sensor indicating at least a minimum required amount of weight on the landing wheels of the aircraft. 7. The smoke mitigation system of claim 1, wherein the means for initiating opening of the exhaust shutter is a manual switch operated by an operator of the aircraft and a signal indicating that the aircraft is traveling at an airspeed of less than a maximum allowable airspeed and a signal indicating that the aircraft is at an altitude above ground level that is less than a maximum allowable altitude above the ground level. 8. A method of mitigating smoke within an aircraft, the method comprising: upon detecting smoke in the aircraft:waiting for the aircraft to be at a location that is safe to deploy one or more exhaust shutters, the exhaust shutters in an upper region of a fuselage of the aircraft and the exhaust shutters in fluid communication with a passenger cabin of the aircraft;initiating opening of the exhaust shutters, thereby the smoke escaping through the exhaust shutters and fresh air entering the passenger cabin through the exhaust shutters; wherein the step of waiting includes determining that the aircraft is in a location that is safe to deploy the one or more exhaust shutters by detecting sufficient weight on the aircraft's landing gear. 9. The method of claim 8, wherein the step of waiting further includes determining that the aircraft is in a location that is safe to deploy the one or more exhaust shutters by detecting that an airspeed of the aircraft being less than a predetermined maximum deployment airspeed. 10. The method of claim 8, wherein the step of waiting further includes determining that the aircraft is in a location that is safe to deploy the one or more exhaust shutters by detecting that an altitude of the aircraft above land is less than a predetermined maximum altitude above land. 11. The method of claim 8, wherein the step of waiting further includes determining that the aircraft is in a location that is safe to deploy the one or more exhaust shutters by detecting that an airspeed of the aircraft is less than a predetermined maximum deployment airspeed and an altitude of the aircraft above land is less than a predetermined maximum altitude above land. 12. An apparatus for smoke mitigation in an aircraft, the apparatus comprising: a plurality of exhaust shutters in an upper region of a fuselage of the aircraft, the upper region being on an opposite side of the fuselage than a landing gear, the exhaust shutters having a closed position in which each of the exhaust shutters does not exchange air from outside of the fuselage with air inside of a passenger cabin within the fuselage, and the exhaust shutters having an open position in which each of the exhaust shutters exchange air from the outside of the fuselage with air inside of the passenger cabin, thereby enabling escape of smoke from the passenger cabin;each of the exhaust shutters interfaced to an actuator, the actuators configured to open a respective exhaust shutter; andmeans for initiating operation of the actuators, thereby opening of the exhaust shutters;wherein the means for initiating operation of the actuators is triggered by an occurrence of any of the group consisting of: a combination of a signal from a smoke detector and a signal indicating the aircraft is on the ground as detected by a sensor, the sensor indicating at least a minimum required amount of weight on the landing wheels of the aircraft,a manual switch operated by an operator of the aircraft in conjunction with both an electrical signal indicating the aircraft is traveling at an airspeed of less than a maximum allowable airspeed and an electrical signal indicating that the aircraft is at an altitude above ground level that is less than a maximum allowable altitude above the ground level,a combination of a signal from a smoke detector and a signal indicating the aircraft is on the ground as detected by a sensor, the sensor indicating at least a minimum required amount of weight on the landing wheels of the aircraft, anda combination of a signal from a smoke detector, a signal indicating the aircraft is traveling at an airspeed of less than a maximum allowable airspeed, and a signal indicating that the aircraft is at an altitude above ground level that is less than a maximum allowable altitude above the ground level. 13. The apparatus of claim 12, wherein each exhaust shutter further comprises a lock, each lock preventing opening of a respective exhaust shutter until unlocked by a signal indicating the aircraft is at a safe altitude and speed.
Space, David R.; Matera, Jane V.; Atkey, Warren A.; Fiterman, Charles J.; Gray, John; Arnaud, Timothy J., Systems and methods for providing airflow in an aerospace vehicle.
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