AIRFLOW DIVERTER FOR AIRCRAFT AND METHOD OF USE

Abstract

Disclosed is a stowable airflow diverter for removable attachment to a floor vent of a turbine aircraft. The air diverter comprises vertical ducting extending from a base. A flexible gasket and magnets are attached to the base for engagement with the floor vent. A nozzle attached to the vertical ducting redirects the airflow emanating from the floor vent from horizontal to vertical in order to direct air conditioned air into the cock pit of the aircraft. In an alternate embodiment, the nozzle is rotatable with respect to the vertical axis of the duct. In another alternate embodiment, the nozzle and vertical duct comprise telescoping segments such that the device can be collapsed into the floor vent.

Claims

1. An air diverter for removable attachment to a floor vent of an aircraft comprising: a base connected to a vertically oriented duct; a nozzle connected to the duct; a gasket, connected to the base, configured to be positioned adjacent the floor vent; and, a magnet, connected to the base, configured to removably adhere to the floor vent.

2. The air diverter of claim 1 wherein the base is connected to a coupling and the coupling is connected to the duct.

3. The air diverter of claim 1 wherein the base further comprises: a riser extending from a plate wherein the riser is connected to the duct and the plate is connected to the gasket.

4. The air diverter of claim 1 further comprising: a rotary collar between the nozzle to the duct that is rotatable with respect to the duct about a longitudinal axis of the duct.

5. The air diverter of claim 1 further comprising: a rotary collar, between the nozzle and the duct, rotatable with respect to the duct about a generally 45 axis from a longitudinal axis of the duct.

6. The air diverter of claim 1 wherein the nozzle redirects a first airflow direction from generally perpendicular to the floor to a second airflow direction generally parallel to the floor.

7. A duct system for redirecting cabin supply air from a floor vent in a floor of an aircraft comprising: a storage chamber, in ducted communication with a source of cabin supply air, configured to be positioned below the floor vent; a first vertical stanchion in ducted communication with the storage chamber; a repositionable nozzle in ducted communication with the first vertical stanchion; and, wherein the first vertical stanchion is capable of moving from a stowed position within the storage chamber to an extended position outside the storage chamber.

8. The duct system of claim 7 further comprising a second vertical stanchion in ducted communication with the first vertical stanchion and in ducted communication with the storage chamber.

9. The duct system of claim 8 wherein: the first vertical stanchion is frustoconical; the second vertical stanchion is frustoconical; and, the first vertical section is in a telescoping configuration with the second vertical section.

10. The duct system of claim 8 further comprising: a first flange extending from the storage chamber for engagement with a second flange extending from the second vertical stanchion; a third flange extending from the second vertical stanchion for engagement with a fourth flange extending from the first vertical stanchion; and, wherein the first flange abuts the second flange and the third flange abuts the fourth flange when in the extended position.

11. The duct system of claim 8 further comprising: a grated hatch operatively positioned adjacent the storage chamber; and configured to conceal the first vertical stanchion, the second vertical stanchion and the nozzle in the stowed position.

12. The duct system of claim 8 further comprising: a hatch pivotally connected to the storage chamber; wherein the hatch is configured to be generally flush with the floor in the stowed position.

13. The duct system of claim 8 wherein the repositionable nozzle is rotatable.

14. A method of redirecting aircraft cabin supply air from a floor vent with an air diverter, the air diverter having a base connected to a duct, a gasket connected to the base, a set of magnets connected to the base, and a nozzle connected to the duct, comprising: positioning the gasket adjacent the floor vent.

15. The method of claim 14 further comprising: Positioning the magnets on the floor vent.

16. The method of claim 14 further comprising: rotating the nozzle.

17. The method of claim 15 further comprising: removing the base from attachment with the floor vent; and, stowing the air diverter.

18. A method of redirecting aircraft cabin supply air from a floor vent with a duct system, the duct system having a storage chamber below the floor and in ducted communication with the cabin supply air, a plurality of vertical stanchions nested within and in ducted communication with the storage chamber and a nozzle nested within and in ducted communication with the plurality vertical stanchions, comprising: extending the plurality of vertical stanchions out of the storage chamber; and, repositioning the nozzle.

19. The method of claim 18 wherein the step of repositioning further comprises the step of reconfiguring a corrugated section with respect to the plurality of vertical stanchions.

20. The method of claim 18 further comprising: collapsing the nozzle to the plurality of vertical stanchions; and, collapsing the plurality of vertical stanchions within the storage chamber.

21. The method of claim 18 further comprising covering the duct system with a vent hatch.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a picture of a typical cockpit of a corporate turbine aircraft showing a forward floor vent and face nozzles.

[0024] FIG. 2A is an isometric view of a preferred embodiment.

[0025] FIG. 2B is a side view of an alternate embodiment of a nozzle.

[0026] FIG. 2C is a side view of an alternate embodiment of a nozzle.

[0027] FIG. 3 is a bottom view of a base of a preferred embodiment.

[0028] FIG. 4 is a partial cut away view taken along line 4-4 of FIG. 3 of a base of a preferred embodiment attached to a floor vent.

[0029] FIG. 5 is a side view of a preferred embodiment in use.

[0030] FIG. 6A is an isometric view of an alternate embodiment in extended position.

[0031] FIG. 6B is a cut away view along line 6-6 of FIG. 6A of an alternate embodiment in stowed position.

[0032] FIG. 6C is a cut away view along line 6-6 of FIG. 6A of an alternate embodiment in extended position.

[0033] FIG. 6D is a cut away view along line 6-6 of FIG. 6A of an alternate embodiment in directed position.

[0034] FIG. 6E is a cut away view of an alternate embodiment in extended position

[0035] FIG. 6F is a cut away view of an alternate embodiment in extended position.

DETAILED DESCRIPTION

[0036] In the description that follows, like parts are marked throughout the specification and figures with the same numerals, respectively. The figures are not necessarily drawn to scale and may be shown in exaggerated or generalized form in the interest of clarity and conciseness.

[0037] Referring to FIG. 2A, air diverter 200 comprises base 202 rigidly connected to coupling 204. Coupling 204 is rigidly connected to duct 206. Duct 206 is rigidly connected to nozzle 208. In a preferred embodiment, base 202 is formed in a square to match a typical environment vent frame to which the device will be applied. The base may conform to other common shapes. Coupling 204, duct 206, and nozzle 208 are preferably cylindrical, however other cross-sectional shapes are envisioned. In a preferred embodiment, all connections are made with a suitable aircraft grade epoxy. In a preferred embodiment, base 202, coupling 204, duct 206, and nozzle 208 are made of polystyrene, polyvinyl chloride (PVC), or nylon. Light aluminum or an aluminum magnesium alloy are also preferable.

[0038] A preferable height of air diverter 200 from base 202 to nozzle 208 can range, depending on application, from two to four feet but may vary depending on the aircraft. Base 202 preferably has dimensions that are approximately one to two inches larger than the dimensions of a floor vent frame. The diameters of duct 206 and nozzle 208 preferably range from three to four inches. Duct 206 and nozzle 208 should provide free flow of the environmental air coming from the floor vent. In one embodiment, this flow is approximately 300-400 CFM.

[0039] In an alternate embodiment shown in FIG. 2B, nozzle 208 is connected to duct 206 by rotary collar 212. Rotary collar 212 allows nozzle 208 to be rotated with respect to duct 206 about longitudinal axis 210.

[0040] In an alternate embodiment shown in FIG. 2C, nozzle 214 is connected to duct 206 by rotary collar 212. Rotary collar 212 allows nozzle 208 to be rotated with respect to duct 206 about longitudinal axis 210. Nozzle 214 comprises upper section 224 connected to lower section 226 by rotary collar 216 at angle 218. Rotary collar 216 allows upper section 224 to be rotated with respect to lower section 226 about axis 222. Axis 222 is generally perpendicular to rotary collar 216. Angle 218 is preferably about 45 but can range from 30 to 60. Upper section 224 extends from rotary collar 216 at angle 220. Angle 220 is preferably about 45 but can range from 30 to 60. The combination of angles 218 and 220 allow the airflow directed by nozzle 214 to be adjusted from directly vertical to generally horizontal and all angles in between.

[0041] Referring to FIG. 3, the underside of base 202 is shown. Base 202 comprises flange 302 integrally formed with riser 304. Riser 304 is cylindrical and engages coupling 204. Flange 302 includes a plurality of radial slats 306. The slats serve to strengthen the flange and also prevent debris from entering the floor vent. Gasket 308 is attached around the perimeter of flange 302. The gasket seals the junction between air diverter 200 and the floor vent frame. In a preferred embodiment, gasket 308 is flexible foam rubber. Gasket 308 has outer perimeter 316 that generally matches the perimeter of base 202. Gasket 308 has inner perimeter 318 that generally matches the perimeter of the floor vent frame. Magnets 310 and 311 are connected to flange 302. In a preferred embodiment, the magnets are a rubber/ferrite powder mixture dispersed in a flexible plastic substitute that is laminated on both sides to resist corrosion. Each magnet has a contact surface area that ranges from about 2 to 3 in.sup.2 and a generated force of about 10 pounds per linear foot. In one preferred embodiment, the magnets are 0.5 inches in width and 0.06 inches in height. In another preferred embodiment, the magnets may be flat neodymium rare earth magnets available from CMS Magnetics. These magnets generate approximately 80 pounds force per linear foot and are ideal for high traffic applications.

[0042] Referring to FIG. 4, base 202 is shown removably affixed to floor vent frame 402. Floor vent frame 402 slightly extends from floor 404 and is typically constructed of a magnetic alloy. Floor vent frame 402 has outer perimeter 406. When air diverter 200 is attached to floor vent frame 402, gasket 308 completely surrounds floor vent frame 402 such that inner perimeter 318 is adjacent outer perimeter 406. Magnets 310 and 311 are adjacent floor vent frame 402 and magnetically affix base 202 to floor vent frame 402. Riser 304 extends from flange 302 and engages coupling 204.

[0043] Referring to FIG. 5, in use, air diverter 200 is attached to floor vent frame 402. Nozzle 208 is directed towards the aircraft cockpit. Conditioned air 510 from cabin supply duct 511 flows through floor vent frame 402 to base 202, coupling 204, duct 206, and nozzle 208. Nozzle 208 redirects the cabin air into forward flow 512. In an alternate embodiment, nozzle 208 is rotated about longitudinal axis 210 through the use of rotary collar 212 in order to alter the cabin air flow direction. In an alternate embodiment, nozzle 214 is rotated about longitudinal axis 210 through the use of rotary collar 212 and rotated about axis 222 through the use of rotary collar 216 in order to alter the cabin air flow direction. When the aircraft is ready for takeoff, air diverter 200 can easily be removed from engagement with floor vent frame 402 and appropriately stowed such that floor vent frame 402 can operate normally.

[0044] Referring to FIG. 6A, an alternate embodiment will be described.

[0045] Flare 604 is formed into a flat plate in which base opening 605 is formed. First vertical stanchion 606 is positioned within base opening 605. Second vertical stanchion 608 is positioned within first vertical stanchion 606. Flex nozzle 610 is ductedly connected to second vertical stanchion 608 via flexible section 620. In a preferred embodiment, the flexible section is comprised of corrugated drain pipe approximately three inches in diameter. In preferred embodiments, the corrugated drain pipe may be obtained at Marelton Cross Limited of the U.K. Flare 604 is connected to storage chamber 616. Storage chamber 616 is cylindrical but in alternate embodiments, other shapes will suffice. First vertical stanchion 606, second vertical stanchion 608, and flex nozzle 610 extend from and can all collapse within storage chamber 616. When extended, the vertical stanchions are held in place by an interference fit between them. In other embodiments, there may be a fewer or greater number of vertical stanchions. The flexible section when repositioned is held in place by the memory of the corrugation.

[0046] Referring to FIG. 6B, duct system 602 is shown in a stowed position. Flex nozzle 610 is collapsed in a stowed position. Flex nozzle 610 is connected to second vertical stanchion 608 and is held in ducted communication with retaining flange 614. Second vertical stanchion 608 is nested within first vertical stanchion 606 and retained in place by retaining flanges 607 and 614. First vertical stanchion 606 is nested within storage chamber 616 and retained in place by retaining flanges 603 and 623. Second vertical stanchion 608 and first vertical stanchion 606 are retained within storage chamber 616 by retaining flange 611. Retaining flange 611 forms duct opening 615 which is in ducted communication with cabin air supply duct 612. In the stowed position, the duct system is entirely contained within storage chamber 616 and flex nozzle 610 is held flush with cabin floor 613.

[0047] Referring to FIG. 6C, to raise the system into an extended position, a force is applied shown by Arrow A to flexible nozzle 610 thereby extending flexible section 620 away from second vertical stanchion 608. Second vertical stanchion 608 is telescoped within first vertical stanchion 606 until retaining flange 614 meets retaining flange 607. The stanchions are held in place by interference fits.

[0048] First vertical stanchion 606 is telescoped upward through storage chamber 616 until retaining flange 603 meets retaining flange 623.

[0049] Referring to FIG. 6D, flexible section 620 is then rotated in direction B and is held in place by the memory of its corrugated construction. The flexible section is multi-directional and can be repositioned in a virtually unlimited set of configurations. In order to direct cabin air forward or aft.

[0050] Stowage hatch 617 is connected to flange stowage chamber 616 by hinge 619. In one embodiment, storage hatch 617 is a flat plate and is configured to match the cabin floor and so prevents air flow from the duct into the cabin when in the stowed position. When the duct system is in extended position, stowage hatch 617 lies adjacent floor 613. When the duct system is in stowed positioned, stowage hatch 617 is rotated in direction C until it engages closure latch 622. In another preferred embodiment, storage hatch 617 includes a ducted vent to allow free flow of environmental air from the cabin supply through the vertical stanchion in stowed position and into the cabin.

[0051] Referring to FIG. 6E, an alternate configuration is shown. Fixed 90 nozzle 630 is attached to second vertical stanchion 608. Fixed 90 nozzle 630 forms fixed 90 exit nozzle 621. Second vertical stanchion 608 may be rotated 360 in direction D about its central vertical axis with respect to first vertical stanchion 606 thereby directing fixed 90 exit nozzle 621 in various directions.

[0052] Referring to FIG. 6F, an alternate configuration is shown. Storage chamber 625 is in ducted communication with cabin air supply duct 612. First frustoconical stanchion 627 is nested within and extends from storage chamber 625. Second frustoconical stanchion 629 is nested within and extends from first frustoconical stanchion 627. Nozzle 635 is connected to second frustoconical stanchion 629 by rotary collar 637. Rotary collar 637 allows nozzle 635 to be rotated with respect to second frustoconical stanchion 629 about longitudinal axis 640. Nozzle 635 comprises an upper section connected to a lower section 637 by rotary collar 633 which allows rotation of the upper section relative to the lower section along an axis perpendicular to the collar in, for example, direction E. The nozzle is shown in a 90 or horizontal position. The nozzle is stored in a 0 or vertical position. The frustoconical sections are held in position by interference fits when extended. First frustoconical stanchion 627, second frustoconical stanchion 629, and nozzle 635 all collapse within storage chamber 625 in a stowed position. In other embodiments, there may be a fewer or greater number of frustoconical stanchions.

[0053] It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this disclosure is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present disclosure as defined by the appended claims.