초록 ▼

A negative pressure valve assembly is provided. The valve assembly comprises a valve port assembly comprising a port and a flange substantially surrounding the port, a valve comprising a plate adapted to substantially cover the port, the plate comprising a minor edge, a major edge having a major edg

A negative pressure valve assembly is provided. The valve assembly comprises a valve port assembly comprising a port and a flange substantially surrounding the port, a valve comprising a plate adapted to substantially cover the port, the plate comprising a minor edge, a major edge having a major edge length, and a plate biasing assembly stop located at a first position along the major edge, the first position more than 50% of the major edge length as measured from the minor edge. The valve assembly further comprises a hinge coupled to the plate, the hinge adapted to couple the plate to the flange, and first plate biasing assembly adapted to couple to the valve port assembly and to bias the plate towards the valve port assembly, the first plate biasing assembly comprising a resilient member adapted to contact the stop plate.

대표청구항 ▼

1. A negative pressure valve assembly comprising: a valve port assembly comprising a port and a flange substantially surrounding the port; anda valve comprising: a plate adapted to substantially cover the port and extending at least partially over the flange, the plate movable between a closed posit

1. A negative pressure valve assembly comprising: a valve port assembly comprising a port and a flange substantially surrounding the port; anda valve comprising: a plate adapted to substantially cover the port and extending at least partially over the flange, the plate movable between a closed position, in which fluid may not flow through the port, and a plurality of open positions, in which fluid may flow through the port, the plate comprising: a minor edge;a major edge having a major edge length; anda plate biasing assembly stop located at a first position along the major edge, the first position more than 50% of the major edge length, as measured from the minor edge, the plate biasing assembly stop extending away from the major edge and comprising a stop plate;a hinge coupled to the plate along the minor edge, and rotatably coupling the plate to the flange; anda first plate biasing assembly rotatably coupled to the valve port assembly and contacting the plate biasing assembly stop to thereby supply a force to the plate that biases the plate towards the closed position, the first plate biasing assembly configured to exert a continuously increasing force to the plate that biases the plate to the closed position when the plate moves from the closed position to any one of the open positions. 2. The negative pressure valve assembly of claim 1, wherein the negative pressure valve assembly is disposed in an aircraft. 3. The negative pressure valve assembly of claim 1, further comprising a sealing member disposed between the plate and the flange and adapted to inhibit fluid communication through the port when the plate is in contact with the flange. 4. The negative pressure valve assembly of claim 1, further comprising a second plate biasing assembly coupled to the plate, the second plate biasing assembly adapted to couple to the valve port assembly and to bias the plate towards the valve port assembly. 5. A pressure relief valve comprising: a plate having a major surface area and a first edge, the plate extending along a longitudinal axis;a hinge coupled to the plate along the first edge, the hinge adapted to couple to a port assembly and configured such that the plate may move between a closed position, in which fluid may not flow through the port, and a plurality of open positions, in which fluid may flow through the port; anda first positioning spring assembly coupled to the plate at a first position, wherein at least 50% of the major surface area of the plate is disposed between the first position and the first edge, as measured along the longitudinal axis, the first positioning spring assembly supplying a force that biases the plate towards the closed position, and configured to exert a continuously increasing force to the plate that biases the plate to the closed position when the plate moves from the closed position to any one of the open positions, the first positioning spring assembly comprising:a compression spring having a first end;a coupling rod extending along the compression spring; anda spring stop adapted to receive the first end of the compression spring. 6. The pressure relief valve of claim 5, wherein the first positioning spring assembly is adapted to be rotatably coupled to the port assembly. 7. The pressure relief valve of claim 5, wherein the plate further comprises a first biasing assembly stop at the first position, the first biasing assembly stop extending away from the plate and adapted to couple with the first positioning spring assembly. 8. The pressure relief valve of claim 7, wherein the compression spring has a second end and the first biasing assembly stop comprises a flat portion and a hole, the coupling rod extending through the hole of the first biasing assembly stop and the flat portion adapted to receive the second end of the compression spring. 9. The pressure relief valve of claim 5, wherein the hinge is adapted to bias the plate towards the port assembly. 10. The pressure relief valve of claim 9, wherein the hinge comprises a torsional spring adapted to bias the plate towards the port assembly. 11. The pressure relief valve of claim 5, further comprising a second positioning spring assembly coupled to the plate at a second position, wherein the first position and second position are located across the longitudinal axis from each other. 12. The pressure relief valve of claim 5, wherein the plate comprises a regular geometric shape. 13. A pressure relief valve assembly comprising: a planar member extending along a longitudinal axis and comprising:a major surface area;a first edge; anda first biasing assembly stop at a first position, wherein at least 50% of the major surface area of the planar member is disposed between the first position and the first edge, as measured along the longitudinal axis, the first biasing assembly stop extending in a transverse direction to the longitudinal axis;a hinge coupled to the planar member along the first edge, the hinge adapted to couple to a port assembly and configured such that the planar member may move between a closed position, in which fluid may not flow through the port, and a plurality of open positions, in which fluid may flow through the port; anda first biasing assembly comprising a first resilient member, the first resilient member coupled to the first biasing assembly stop, and the first biasing assembly configured to: couple to the port assembly; andsupply a force to the planar member that continually biases the planar member towards the closed position during rotation of the planar member about the hinge; andexert a continuously increasing force to the planar member that biases the planar member to the closed position when the planar member moves from the closed position to any one of the open positions. 14. The pressure relief valve assembly of claim 13, wherein the hinge comprises a second resilient member adapted to bias the planar member towards the port assembly. 15. The pressure relief valve assembly of claim 13, wherein the first resilient member comprises an elastomeric member. 16. The pressure relief valve assembly of claim 13, wherein the first biasing assembly is adapted to pivot during rotation of the planar member about the hinge. 17. The pressure relief valve assembly of claim 14, wherein the planar member further comprises a second biasing assembly stop at a second position, the second position located across the longitudinal axis from the first position. 18. The pressure relief valve assembly of claim 17, further comprising a second biasing assembly comprising a third resilient member coupled to the second biasing assembly stop, the second biasing assembly adapted to couple to the port assembly and to bias the planar member towards the port assembly. 19. The pressure relief valve assembly of claim 13, further comprising a locking member adapted to couple the planar member to the port assembly.