[특허]Aircraft outflow valve

The Boeing Company

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특허 상세정보

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Aircraft outflow valve

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64D-013/00 B64D-013/02
출원번호	US-0248712 (2011-09-29)
등록번호	US-9067680 (2015-06-30)
발명자 / 주소	Al-Alusi, Thamir R. Sedgwick, Leigh M. Foster, Coyne
출원인 / 주소	The Boeing Company
대리인 / 주소	Armstrong Teasdale LLP
인용정보	피인용 횟수 : 1 인용 특허 : 11

초록
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Outflow valves for use in an aircraft are described. In one example, an outflow valve for use in an aircraft includes a frame configured for coupling to an aircraft and a gate pivotally coupled to said frame. The frame includes a forward flange extending above the frame. The gate is pivotally moveable between a closed position to substantially block airflow between an interior of the aircraft and an exterior of the aircraft and an exhaust position to direct airflow from the interior toward the exterior of the aircraft. The forward edge of the gate is loc...

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1. An outflow valve for use in an aircraft, said outflow valve comprising: a frame configured for coupling to an aircraft, said frame comprising a forward portion and a rearward portion, and defining an interior direction towards an interior of the aircraft, and an exterior direction towards an exterior of the aircraft; anda gate pivotally coupled to said frame at a pivot point that is substantially coplanar with said frame and located substantially midway between a first edge of said gate and a second edge of said gate, said gate pivotally moveable between a closed position, an intake position, and an exhaust position to direct airflow between the interior of the aircraft and the exterior of the aircraft; andwherein said forward portion of said frame comprises a flange extending in the interior direction to maintain a limited gap between the first edge of said gate and the forward portion of said frame while said gate is pivotally moved between the closed position and the exhaust position, and said flange extending in a substantially normal direction relative to said frame such that the limited gap increases in size at a lower rate than a second gap defined between the second edge of said gate and the rearward portion of said frame, wherein a distance between the first edge of said gate and the forward portion of said frame is greater than a distance between the first edge of said gate and the rearward portion of said frame when said gate is in the intake position, and a distance between the first edge of said gate and the forward portion of said frame is less than a distance between the first edge of said gate and the rearward portion of said frame when said gate is in the exhaust position. 2. An outflow valve in accordance with claim 1, wherein the flange is configured to maintain a limited gap by maintaining a substantially constant gap between the first edge of said gate and the forward portion of said frame while said gate is pivotally moved between the closed position and the exhaust position. 3. An outflow valve in accordance with claim 2, wherein the flange is curved to substantially match a path of the first edge of said gate when said gate is pivotally moved between the closed and exhaust positions. 4. An outflow valve in accordance with claim 1, wherein the flange extends in the interior direction along the forward portion of said frame. 5. An outflow valve in accordance with claim 1, further comprising a flap that covers the second gap between the first edge of said gate and the rearward portion of said frame when said gate is in the intake position. 6. An outflow valve in accordance with claim 1, wherein said gate is configured to pivot about 45 degrees between the closed position and the exhaust position. 7. An outflow valve in accordance with claim 1, wherein said frame further includes an opening defined therein through which airflow is channeled between the aircraft interior and the aircraft exterior, said flange extending from said frame one of substantially perpendicularly from said frame or such that at least a portion of said flange overhangs at least a portion of the opening. 8. An outflow valve for use in an aircraft, said outflow valve comprising: a frame configured for coupling to an aircraft, said frame comprising a body, a forward flange extending above said body, and a rearward portion;a gate pivotally coupled to said frame at a pivot point that is substantially coplanar with said frame and located substantially midway between a first edge of said gate and a second edge of said gate, said gate pivotally moveable between a closed position to substantially block airflow between an interior of the aircraft and an exterior of the aircraft, an intake position to direct airflow from the exterior toward the interior of the aircraft through a first gap defined between the first edge of said gate and said forward flange, and an exhaust position to direct airflow from the interior toward the exterior of the aircraft through a second gap defined between the second edge of said gate and the rearward portion of said frame, wherein the second gap changes size at a lower rate than the first gap as said gate pivotally moves between the closed and intake positions, wherein the first edge of said gate is located adjacent said frame forward flange substantially throughout pivotal movement of said gate between the closed position to the exhaust position, wherein a distance between the first edge of said gate and said frame forward flange is greater than a distance between the first edge of said gate and the rearward portion of said frame when said gate is in the intake position, and a distance between the first edge of said gate and said frame forward flange is less than a distance between the first edge of said gate and the rearward portion of said frame when said gate is in the exhaust position. 9. An outflow valve in accordance with claim 8, wherein said frame forward flange is configured to limit airflow into the interior of the aircraft between the first edge of said gate and said frame forward flange. 10. An outflow valve in accordance with claim 9, wherein said frame forward flange is configured to maintain the first gap as a substantially constant gap. 11. An outflow valve in accordance with claim 10, wherein said frame forward flange extends from said body substantially along a path defined by the first edge of said gate as it moves between the closed position and the exhaust position. 12. An outflow valve in accordance with claim 8, wherein said gate defines an angle of about 45 degrees relative to the rearward portion of said frame when said gate is in the exhaust position. 13. An outflow valve in accordance with claim 8, wherein said frame forward flange extends along the forward portion of said frame. 14. An outflow valve in accordance with claim 8, further comprising an actuator for pivotally moving said gate. 15. A method of exhausting air from an aircraft comprising: pivotally opening a gate coupled to a frame of an outflow valve from a closed position substantially parallel with an external surface of an aircraft to an exhaust position defining an angle to the external surface of the aircraft greater than zero to permit airflow from an interior of the aircraft to an exterior of the aircraft through a first gap defined between a first edge of said gate and a rearward portion of said frame, and to permit airflow from the exterior of the aircraft to the interior of the aircraft through a second gap defined between a second edge of said gate and a flange extending in a substantially normal direction relative to the frame towards the interior of the aircraft, wherein the second gap changes size at a lower rate than the first gap as said gate pivotally moves between the closed and exhaust positions, wherein the gate pivots about a pivot point that is substantially coplanar with the frame and located substantially midway between opposing distal edges of the gate, wherein a distance between the first edge of the gate and a forward portion of the frame is greater than a distance between the first edge of the gate and the rearward portion of the frame when the gate is in the intake position, and a distance between the first edge of the gate and the forward portion of the frame is less than a distance between the first edge of the gate and the rearward portion of the frame when the gate is in the exhaust position; andmaintaining the second gap substantially constant to substantially minimize airflow into the interior of the aircraft between the first edge of the gate and the frame. 16. A method in accordance with claim 15 wherein the flange extending from the frame comprises a curved flange defining an arc having a center approximately located at a pivot point of the gate. 17. A method in accordance with claim 15 wherein the flange extending from the frame comprises a flange extended toward the interior of the aircraft a sufficient distance to remain adjacent the first edge of the gate substantially throughout said pivotally opening the gate from the closed position to the exhaust position.

이 특허에 인용된 특허 (11)

이 특허를 인용한 특허 피인용횟수: 1

Khera, Jagtar S.. System, method, and apparatus for smoke mitigation. USP2017109802707.

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Aircraft outflow valve

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Aircraft outflow valve

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이 특허에 인용된 특허 (11)

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