IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0831445
(2004-04-22)
|
등록번호 |
US-7331401
(2008-02-19)
|
우선권정보 |
DE-103 18 974(2003-04-26) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
5 |
초록
▼
Fire that has started in an enclosed space in an aircraft is smothered by closing or at least partly closing any air flow inlet and any air flow outlet of the enclosed space in response to a temperature rise caused by a fire in the enclosed space such as a toilet or crew quarters, galley cabinets, o
Fire that has started in an enclosed space in an aircraft is smothered by closing or at least partly closing any air flow inlet and any air flow outlet of the enclosed space in response to a temperature rise caused by a fire in the enclosed space such as a toilet or crew quarters, galley cabinets, or the like. For this purpose fireproof, intumescent material is installed next to and along any apertures or openings in the enclosed space. When the temperature in the enclosed space exceeds the expansion temperature of the fireproof intumescent material the material expands into these apertures, thereby sealing or at least partly sealing these apertures, whereby air and thus oxygen access to the fire is reduced or even prevented, thereby smothering the fire. Preferably a guide surface guides the expanding intumescent material into the apertures or openings at least when the expansion starts.
대표청구항
▼
What is claimed is: 1. A method of fighting a fire in an enclosed space in an aircraft having at least one air flow inlet into said enclosed space and at least one air flow outlet out of said enclosed space, wherein said air flow outlet is an air outflow channel having an outwardly diminishing cros
What is claimed is: 1. A method of fighting a fire in an enclosed space in an aircraft having at least one air flow inlet into said enclosed space and at least one air flow outlet out of said enclosed space, wherein said air flow outlet is an air outflow channel having an outwardly diminishing cross-sectional flow area, said method comprising the following steps: a) installing fireproof intumescent material next to said at least one air flow inlet, b) installing further fireproof intumescent material as a ring inside said air outflow channel, c) heating said fireproof intumescent materials by heat generated by a fire occurring in said enclosed space, and d) expanding said fireproof intumescent materials in response to said heating, whereby said diminishing cross-sectional flow area of said air outflow channel deflects expanding fireproof intumescent material at an angle inwardly, to at least partly seal said air flow inlet and said air outflow channel to substantially reduce air and oxygen access to said fire to smother said fire and to hinder propagation of said fire out of said enclosed space. 2. The method of claim 1, wherein said air flow inlet and outlet each has a plurality of inlet and outlet openings, said method comprising installing said fireproof intumescent material alongside and in parallel to said plurality of inlet and outlet openings. 3. The method of claim 2, comprising installing said fireproof intumescent material next to said plurality of inlet and outlet openings and on both sides of said inlet and outlet openings. 4. The method of claim 1, wherein said enclosed space in said aircraft comprises a ceiling and an air flow grid structure forming perforations in said ceiling upstream of said air flow outlet, said method further comprising installing an additional fireproof intumescent material next to said perforations for substantially closing said perforations when said additional fireproof intumescent material expands. 5. The method of claim 4, further comprising guiding expanding fireproof intumescent material into said perforations for at least partly sealing said grid structure. 6. The method of claim 4, further comprising using an adhesive tape of fireproof intumescent material for said installing of said additional fireproof intumescent material. 7. The method of claim 2, further comprising using an adhesive tape of fireproof intumescent material for said installing of said fireproof intumescent material along said openings. 8. The method of claim 1, further comprising guiding expanding fireproof intumescent materials into said at least one air flow inlet and into said at least one air flow outlet. 9. An enclosed space in an aircraft comprising walls, a ceiling, a door and a floor forming an enclosure, an air flow inlet, an air flow outlet, an air outflow channel positioned downstream of said air flow outlet, fireproof intumescent material installed next to said air flow inlet and next to said air flow outlet, and further fireproof intumescent material installed inside said air outflow channel for substantially sealing said air flow inlet and said air flow outlet when said intumescent materials expand in response to a fire inside said enclosed space in said aircraft for substantially reducing air inflow into said enclosed space and air outflow out of said enclosed space to suffocate a fire and to hinder spreading of said fire, wherein said air outflow channel has a wall enclosing a cross-sectional flow area that diminishes in an air outflow direction, whereby said wall forming said cross-sectional flow area deflects expanding fireproof intumescent material at an angle inwardly to substantially seal said air outflow channel. 10. The enclosed space of claim 9, wherein said further fireproof intumescent material is a ring installed inside said air outflow channel. 11. The enclosed space of claim 10, wherein said ring is an adhesive tape of fireproof intumescent material. 12. The enclosed space of claim 9, wherein said fireproof intumescent material is an adhesive tape. 13. The enclosed space of claim 9, wherein said air flow inlet and said air flow outlet each has a plurality of air flow apertures and wherein said fireproof intumescent material is positioned at least on one side of said air flow apertures for expansion into said apertures in response to heating said fireproof intumescent material by a fire. 14. The enclosed space of claim 13, wherein said fireproof intumescent material is positioned on both sides and next to said apertures. 15. The enclosed space of claim 9, further comprising at least one guide surface positioned for guiding expanding fireproof intumescent material into apertures formed in said air flow inlet and in said air flow outlet. 16. The enclosed space of claim 9, further comprising two guide surfaces (9A, 9B), said fireproof intumescent material (9) being positioned between said two guide surfaces forming a guide gap facing toward openings in said air flow inlet and toward openings in said air flow outlet for simultaneously guiding said fireproof intumescent material (9) into said openings formed in said air flow inlet and in said air flow outlet. 17. An aircraft toilet comprising walls, a door in one of said walls, a floor and a ceiling forming a toilet enclosure, an air inlet (4) into said toilet enclosure, an air outlet (7) out of said toilet enclosure, fireproof intumescent material installed in positions for expanding simultaneously into said air inlet and into said air outlet for simultaneously closing said air inlet and said air outlet in response to heat generated by a fire in said toilet enclosure, said simultaneous closing of said air inlet and said air outlet simultaneously preventing an air inflow into said toilet enclosure and an air flow out of said toilet enclosure to suffocate a fire in said aircraft toilet and to hinder spreading of said fire, further comprising an air outlet channel (5) positioned downstream of said air outlet (7) as viewed in an air flow direction (A3), further intumescent material installed for expanding inside said air outlet channel (5), and a further guide surface positioned and sloping for guiding an expansion said further intumescent material in a direction opposite said air flow direction (A3). 18. The aircraft toilet of claim 17, wherein said air inlet and said air outlet each comprises a plurality of air openings (4, 7A) and guide surfaces (9A, 9B) positioned relative to said air openings (4, 7A) and relative to said intumescent material (9) for guiding an expansion of said intumescent material into said plurality of air openings (4, 7A). 19. The aircraft toilet of claim 17, wherein said air inlet is installed in said door, wherein said air outlet is installed in said ceiling, wherein said air outlet channel is installed in an enclosure above said ceiling, and wherein said further guide surface is formed by said air outlet channel having a wall enclosing a cross-sectional flow area diminishing in an air outflow direction for guiding an intumescent material expansion in said direction opposite to said air flow direction (A3). 20. The aircraft toilet of claim 18, wherein said intumescent material (9) is constructed as an adhesive tape, wherein said guide surfaces (9A, 9B) are positioned on opposite sides of said adhesive tape, said adhesive tape of intumescent material having a surface area smaller than a surface area of said guide surfaces (9A, 9B) to form a guide gap facing toward said plurality of air openings (4, 7A).
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