IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0556345
(2009-09-09)
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등록번호 |
US-8382035
(2013-02-26)
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발명자
/ 주소 |
- Horner, Darrell
- Arthurs, Timothy R.
- Armstrong, Bret
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출원인 / 주소 |
- Honeywell International Inc.
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
A valve for use in a cabin pressure control system includes a valve body and a poppet. The valve body includes an inlet, an outlet, and a fluid flow passage therebetween. The poppet is disposed in the valve body. The poppet is moveable between at least a closed position, in which the poppet at least
A valve for use in a cabin pressure control system includes a valve body and a poppet. The valve body includes an inlet, an outlet, and a fluid flow passage therebetween. The poppet is disposed in the valve body. The poppet is moveable between at least a closed position, in which the poppet at least substantially restricts fluid from flowing through the fluid flow passage, and an open position, in which fluid is allowed to flow through the fluid flow passage. The valve body, the poppet, or both, have a fluorocarbon coating.
대표청구항
▼
1. A valve for use in a cabin pressure control system for an aircraft, the valve comprising: a valve body including an inlet, an outlet, and a fluid flow passage therebetween; anda poppet disposed in the valve body and moveable between at least a closed position, in which the poppet at least substan
1. A valve for use in a cabin pressure control system for an aircraft, the valve comprising: a valve body including an inlet, an outlet, and a fluid flow passage therebetween; anda poppet disposed in the valve body and moveable between at least a closed position, in which the poppet at least substantially restricts fluid from flowing through the fluid flow passage, and an open position, in which fluid is allowed to flow through the fluid flow passage, wherein the valve body, the poppet, or both, have a fluorocarbon coating. 2. The valve of claim 1, wherein: the poppet has a knife edge having an outer surface; andthe fluorocarbon coating covers at least a portion of the outer surface of the knife edge. 3. The valve of claim 1, wherein the valve body comprises a base assembly on which the poppet is mounted, the base assembly having the fluorocarbon coating. 4. The valve of claim 3, wherein: the poppet has a knife edge; andthe fluorocarbon coating covers a portion of the base assembly substantially adjacent to the knife edge. 5. The valve of claim 1, wherein: the valve body comprises a base assembly on which the poppet is mounted;the poppet has a first fluorocarbon coating; andthe base assembly has a second fluorocarbon coating. 6. The valve of claim 1, wherein the poppet has an outer surface and a sealing edge, and the fluorocarbon coating is on a portion of the outer surface but not on the sealing edge. 7. A valve for use in a cabin pressure control system for an aircraft, the valve comprising: a valve body including a base assembly, an inlet, an outlet, and a fluid flow passage between the inlet and the outlet; anda poppet mounted on the base assembly and moveable between at least a closed position, in which the poppet at least substantially restricts fluid from flowing through the fluid flow passage, and an open position, in which fluid is allowed to flow through the fluid flow passage, the poppet having a circumferential knife edge;wherein the poppet, the base assembly, or both, have a fluorocarbon coating proximate the circumferential knife edge. 8. The valve of claim 7, wherein the poppet has an outer surface, and the fluorocarbon coating covers a portion of the outer surface. 9. The valve of claim 7, wherein the base assembly has the fluorocarbon coating substantially adjacent to the circumferential knife edge. 10. The valve of claim 7, wherein: the poppet has a first fluorocarbon coating covering at least a portion of an outer surface of the circumferential knife edge; andthe base assembly has a second fluorocarbon coating substantially adjacent to the circumferential knife edge. 11. A system for controlling cabin pressure in an aircraft, the system comprising: a first outflow valve configured to exhaust airflow from a cabin of the aircraft when the first outflow valve is open or when the first outflow valve is closed;a second outflow valve configured to exhaust airflow from the cabin when the second outflow valve is open or when the first outflow valve is closed; anda poppet-type pressure relief valve configured to exhaust airflow from the cabin when the first outflow valve and the second outflow valve are fully or partially closed, to thereby limit a cabin-to-ambient differential pressure and control the cabin pressure, the poppet-type pressure relief valve comprising: a valve body including a base assembly, an inlet, an outlet, and a fluid flow passage between the inlet and the outlet; anda poppet mounted on the base assembly and moveable between at least a closed position, in which the poppet at least substantially restricts fluid from flowing through the fluid flow passage, and an open position, in which fluid is allowed to flow through the fluid flow passage, the poppet having a circumferential knife edge;wherein the poppet, the base assembly, or both, have a fluorocarbon coating proximate the circumferential knife edge. 12. The system of claim 11, wherein the poppet has the fluorocarbon coating, and the fluorocarbon coating covers at least a portion of an outer surface of the circumferential knife edge. 13. The system of claim 11, wherein the base assembly has the fluorocarbon coating substantially adjacent to the circumferential knife edge. 14. The system of claim 11, wherein: the poppet has a first fluorocarbon coating covering at least a portion of the circumferential knife edge; andthe base assembly has a second fluorocarbon coating substantially adjacent to the circumferential knife edge. 15. The valve of claim 1, wherein the valve body, the poppet, or both, have a fluorocarbon coating proximate a location in which the poppet contacts the valve body. 16. The valve of claim 7, wherein the valve body, the poppet, or both, have a fluorocarbon coating proximate a location in which the poppet contacts the valve body. 17. The system of claim 11, wherein the valve body, the poppet, or both, have a fluorocarbon coating proximate a location in which the poppet contacts the valve body. 18. The valve of claim 3, wherein: the base assembly includes a seat on which the poppet rests when in a closed position; andthe base assembly includes the fluorocarbon coating proximate the seat but not on the seat itself. 19. The valve of claim 7, wherein: the base assembly includes a seat on which the poppet rests when in a closed position; andthe base assembly includes the fluorocarbon coating proximate the seat but not on the seat itself. 20. The system of claim 11, wherein: the base assembly includes a seat on which the poppet rests when in a closed position; andthe base assembly includes the fluorocarbon coating proximate the seat but not on the seat itself.
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