초록 ▼

An off-peak intake vent includes spaced top and bottom walls defining a cavity therebetween and a pair of lateral side walls. The bottom wall has a generally planar bottom surface having at least one vent opening formed therethrough for communicating with an opening in a roof deck. The top wall has

An off-peak intake vent includes spaced top and bottom walls defining a cavity therebetween and a pair of lateral side walls. The bottom wall has a generally planar bottom surface having at least one vent opening formed therethrough for communicating with an opening in a roof deck. The top wall has a curved portion that converges with the bottom wall at an uphill edge of the intake vent. The intake vent also includes air intake louvers defined between the top and bottom walls.

대표청구항 ▼

1. An off-peak intake vent comprising: spaced top and bottom walls defining a cavity therebetween and a pair of lateral side walls, said bottom wall having a generally planar bottom surface having at least one vent opening formed therethrough for communicating with an opening in a roof deck, said to

1. An off-peak intake vent comprising: spaced top and bottom walls defining a cavity therebetween and a pair of lateral side walls, said bottom wall having a generally planar bottom surface having at least one vent opening formed therethrough for communicating with an opening in a roof deck, said top wall having a continuously curved portion that converges with said bottom wall at an uphill edge of said intake vent;air intake louvers defined between said top and bottom walls; andan internal baffle system for baffling air flow between the intake louvers and the at least one vent opening of the bottom wall, the baffle system including first and second spaced baffles extending across said intake vent between said side walls, the first baffle protruding from said bottom wall towards said top wall and the second baffle protruding from said top wall towards said bottom wall, wherein said first and second baffles are arranged such that air flowing through said cavity flows over said first baffle and then under said second baffle, said first and second baffles undulating in height as they extend across said intake vent, said baffles undulating out of phase from one another. 2. The intake vent of claim 1, wherein said first and second baffles undulate in distance from said uphill edge as they extend across said intake vent, wherein said baffles undulate in distance in phase with one another. 3. The intake vent of claim 1, further comprising a plurality of spaced drainage channels in communication with respective spaced openings in said first baffle and extending towards said air intake louvers. 4. The intake vent of claim 3, wherein said air intake louvers include wind blocks for blocking air ingestion into said channels at said louvers. 5. The intake vent of claim 3, further comprising a plurality of wind diverters for diverting air away from said spaced openings in said first baffle and located proximate to said spaced openings. 6. The intake vent of claim 5, wherein said wind diverters depend from said top wall and extend over and around said channels. 7. The intake vent of claim 3, wherein said first baffle is shaped to direct water towards said channels for drainage. 8. The intake vent of claim 1, further comprising a water dam wall extending from said bottom wall across said intake vent proximate to said at least one vent opening. 9. The intake vent of claim 1, further comprising a drip edge extending over and beyond said air intake louvers for deterring water draining from said top wall of said intake vent from entering said air intake louvers. 10. The intake vent of claim 1, further comprising a plurality of support ribs extending between said top and bottom walls for supporting said top wall. 11. The intake vent of claim 10, wherein said bottom wall comprises a plurality of spaced vent openings formed therethrough and wherein said support ribs include a plurality of parallel spaced ribs positioned between said spaced vent openings for supporting a portion of the top wall above said spaced openings. 12. The intake vent of claim 1, wherein said vent includes separately formed top and bottom structures that are assembled together to form said intake vent. 13. The intake vent of claim 1, further comprising vent locating means for aligning said intake vent over said opening in said roof deck, said vent locating means comprising one or more downwardly depending tabs. 14. The intake vent of claim 1, further comprising: means for securing a filter in said cavity of said intake vent between the spaced first and second baffles. 15. The intake vent of claim 14, wherein said means for securing said filter secures said filter at an inclined angle with respect to said bottom wall. 16. An off-peak intake vent comprising: spaced top and bottom walls defining a cavity therebetween and a pair of lateral side walls, said bottom wall having a generally planar bottom surface having a vent defined therethrough for communicating with an opening in a roof deck;air intake louvers defined between said top and bottom walls; andan internal baffle system for baffling air flow between the intake louvers and the vent of the bottom wall, the internal baffle system comprising first and second spaced baffles extending across said intake vent between said side walls, the first baffle protruding from a first wall of said spaced top and bottom walls in a first direction and a second baffle protruding from a second of said spaced top and bottom walls in a second direction whereby intake air is first directed in a first direction by said first baffle and then in a second direction by said second baffle,wherein said first and second baffles are arranged such that the first baffle protrudes up from said bottom wall towards said top wall and said second baffle protrudes down from said top wall towards said bottom wall and intake air flowing through said vent flows over said first baffle and then under said second baffle, andwherein said first and second baffles undulate in height as they extend across said intake vent, said baffles undulating out of phase from one another. 17. The intake vent of claim 16 wherein said first baffle includes a plurality of spaced openings formed therein for draining water towards said louvers, said intake vent further comprising a plurality of wind diverters for diverting air away from said spaced openings in said first baffle and located proximate to said spaced openings in said first baffle. 18. An off-peak intake vent comprising: spaced top and bottom walls defining a cavity therebetween and a pair of lateral side walls, said bottom wall having a generally planar bottom surface having a vent defined therethrough for communicating with an opening in a roof deck;air intake louvers defined between said top and bottom walls; andan internal baffle system for baffling air flow between the intake louvers and the vent of the bottom wall, the internal baffle system comprising first and second spaced baffles extending across said intake vent between said side walls, the first baffle protruding from a first wall of said spaced top and bottom walls in a first direction and a second baffle protruding from a second of said spaced top and bottom walls in a second direction whereby intake air is first directed in a first direction by said first baffle and then in a second direction by said second baffle,wherein said first and second baffles are arranged such that the first baffle protrudes up from said bottom wall towards said top wall and said second baffle protrudes down from said top wall towards said bottom wall and intake air flowing through said vent flows over said first baffle and then under said second baffle, andwherein said first and second baffles undulate in distance from said air intake louvers as they extend across said intake vent, wherein said baffles undulate in distance in phase with one another. 19. The intake vent of claim 18, wherein said intake vent further comprises support ribs extending between said top and bottom walls for supporting said top wall, wherein said support ribs intersect with said internal baffle and wherein at least some of said support ribs comprise lateral drainage gaps on a side of said internal baffle facing said vent defined through said bottom wall. 20. The intake vent of claim 1, wherein the top wall of said intake vent has a generally planar portion parallel to said bottom wall, said generally planar portion of said top wall extending from a downhill edge of said top wall, proximate to said air intake louvers, to said curved portion, wherein said intake vent has a width defined between said uphill and downhill edges and said generally planar portion extends a distance that is 50% or less of the width of the intake vent. 21. The intake vent of claim 20, wherein the width of the intake vent is 12″ or less and a thickness of said intake vent defined between the generally planar portion and the bottom wall is 1″ or less. 22. The intake vent of claim 21, wherein the generally planar portion extends a distance that is 40% or less of the width of the intake vent. 23. The intake vent of claim 22, wherein said curved portion overlies the at least one vent opening. 24. The intake vent of claim 20, wherein said curved portion overlies the at least one vent opening. 25. The intake vent of claim 1, wherein said curved portion has a convex shape and overlies the at least one vent opening.