Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
  • B64D17/00—Parachutes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64C—AEROPLANES; HELICOPTERS
  • B64C3/00—Wings
  • B64C3/30—Wings comprising inflatable structural components

Definitions

• the present invention relates to a pneumatic sliding wing for free-fall jumpers according to the preamble 5 of claim 1.
• the jumper can be steered to a limited extent; however, an actual flight cannot occur for aerodynamic reasons.
• a non-pneumatically equipped sliding wing is known for example from DE 197 49 936 (D).
• This wing overcomes the disadvantage mentioned, the limited size of the exit doors by the fact that it can be expanded and retracted. le has. These should be unfolded either after jumping out of the plane using the jumper's muscular strength or through the action of actuators that are tensioned before the jump, in any case purely mechanically.
• the landing of the jumper is provided - as mentioned -. to separate the wing from the jumper, so that the landing on the parachute can take place in an aerodynamically undisturbed manner.
• D2 From US 3,372,893 (D2) a pneumatic sliding wing closer to the present invention has become known.
• D2 is proposed to integrate a -Gleitflugel .to the ejection seat of a fighter pilot, the latter, after an emergency 'exit parachute mounted, can activate with compressed gas. The parachute should then be able to be dropped.
• the wing proposed here in D2 does not meet the essential requirements placed on a wing. In addition, such a considerable amount of gas is required to inflate an entire glider that is claimed here that it cannot be used as the payload of a fighter pilot in the event of an emergency exit.
• a pneumatic wing in itself is also known from EP 0851829 (D3) of the same applicant • how the above patent application, are known.
• the object of the present invention is a. ' To create pneumatic sliding wing for free fall jumper, which improves the glide ratio, is safe in operation and can be carried until landing.
• 1 shows a plan view of a first exemplary embodiment of a pneumatic sliding wing according to the invention
• 2 shows the first embodiment in the inoperative state in, the view from the front
• Fig. 6 shows the representation of . 4 in a longitudinal section running perpendicular to it, '
• FIG. 8 shows a second exemplary embodiment in the representation of FIG. 2.
• FIG. 1 is a top view of a first exemplary embodiment of a pneumatic sliding wing 1
• the pneumatic sliding vanes 1 is divided 3 and two connected to a central solid part 'at outer parts 4, which are designed as pneumatic wing, for example according to EP 0 851 829. These have flaccid a ⁇ . and one with compressed gas,
• FIG. 30 opened operative condition.
• the operative state is shown in FIG. 1.
• the jumper 2 wears the fixed part 3 of the pneumatic sliding wing strapped to the back of his body with belts not visible here.
• the fixed part 3 has a larger
• the pocket 7 can of course also in the aerodynamically designed fixed part 3 of the pneumatic
• sliding wing 1 be integrated in such a way that the closure 8 of the pocket 7 has the same nature and surface quality as the fixed part 3. The execution of the closure 8 is not influenced thereby.
• Fig.- 2 is the . pneumatic sliding wing 1 of Fig. 1 in
• the ribbon. 11 engages at the tip of the outer part 4 (as on the left in FIG. 2) or in the vicinity thereof (as on the right in FIG. 2), and is. set up by small
• the fixed part 3 of the pneumatic sliding wing 1 is made in a manner known per se from composite materials, such as GRP or CFRP, the outer parts 4 are as already described.
• FIG. 3 shows a cross section through one of the outer parts 4 .
• The. with the . Point 15 designated trailing edge is tensioned by a plurality 'of approximately triangular supporting profiles 16, which are cut substantially on • the contour of a pneumatic last segment 17 and are supported thereon. Fixing the support profiles to segment 17 and. at the lower and upper skin 13 ,, 12, for example, carried out by 'fasteners.
• the transition from the fixed part 3 to the pneumatic outer parts 4 is shown in FIG.
• a suitably shaped - and in Fig. 5a, b shown - metallic frame 18 is attached on the fixed part 3 .
• This carries, for example, a bowl-shaped structure 19, in which an inflow opening 20 of a compressed gas line 21 is arranged.
• the shape and size of the outer edge of the frame 18 corresponds exactly to the inner edge of the outer part 4 made of textile material can and feel full there.
• a second frame 22 is streaked thereon, the shape and size of which correspond to the outer edge of the outer part 4 at this point.
• screws 23 can be provided, for example.
• 5a, b are perspective representations of the frames 18, 22 for the connection of the fixed part 3 and one.
• Fig. 5a, b the outer contour of the inner frame 18 takes over the shape of the outer part 4 defined by the skin and under skin 12, 13 and the textile webs 14 in the pressurized gas state.
• the inner frame 18 also has a connecting web 24, the function of which is not only in the stabilization of the frame 18, but rather serves, for example, as a diffuser for the compressed gas, as shown in FIG. 6.
• Fig. 6 is a longitudinal section in the. Wing level through a cutout of the pneumatic sliding wing 1 in the area. where the fixed part, 3 and the outer part 4 are assembled.
• Gas storage 30, 31, which are arranged, for example, in the region of the wing roots of the fixed part 3. Both have a volume of the order of 0.2 to 2 liters.
• the initial pressure in the compressed gas store 30 is dimensioned such that its. Filling after. Boyle's law
• the compressed gas storage 30 is closed or opened by a
• valve 32 which feeds the two compressed gas lines 21 in a symmetrical arrangement.
• the second compressed gas reservoir 31 with a volume V 3i of the same order of volume as V x has, for example, the maximum initial pressure, for example 200 bar.
• This pressure is applied to a pressure reducing valve 33 which increases the pressure to, for example, 5-10 bar. reduced.
• a second open-close valve 34 works, the output pressure of which is adjustable by a control valve 35 is brought to a working pressure of 400-600 hPa.
• This gas flow is in turn distributed in a symmetrical arrangement by two compressed gas lines 36 to the two outer parts 4.
• 'can münden- in the pressure gas lines 21, the pressure gas lines 36. or the gas flow from the control valve 35 can be fed directly into the compressed gas line 21.
• a connecting line 37 with a large cross section, which connects the two outer parts 4 and ensures their constant pressure equalization.
• An overpressure valve 38 is attached to the connecting line 37, which - by presetting - maintains the intended working overpressure p 2 , for example ' 500 hPa - and releases the air flowing in through the control valve 35 if an overpressure arises.
• the jumper opens, for example at 5000 meters above sea level. the wing, the atmospheric pressure is about 550 hPa. Then it drops to about 500. the atmospheric pressure increases to approximately 950 hPa, which, in order to maintain the mechanical properties of the pneumatic outer parts 4, 40, means that compressed gas is continuously supplied from the compressed gas. Memory 31 conditional.
• the presence of the pressure relief valve 38 makes it possible to keep the inner pressure of the outer parts always on the safe side.
• the open-close valves 32, 34 are actuated in flight.
• a dump of pneumatic slide vane 1 is thus in '.Normal plante of the pneumatic sliding wing 1 is not required. This also eliminates the potentially complex search and introduction of the pneumatic sliding wing 1 after the parachute phase has ended.
• 5 A second exemplary embodiment of the pneumatic sliding wing 1 according to the invention is shown in FIG. ⁇ It has, like that of the first exemplary embodiment according to FIGS. 1, 2, a fixed part 3, which is adopted unchanged. Two short outer parts 40 adjoin this fixed part 3
• Wing tips 41 are fastened to these short outer parts 40, which in turn are constructed as fixed parts, analogous to the fixed part 3.
• the connection to the outer parts 40 is done as '

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Mechanical Engineering (AREA)
• Toys (AREA)
• Emergency Lowering Means (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=4567810

Family Applications (1)

Country Status (6)

Families Citing this family (4)

Family Cites Families (5)

• 2002
  • 2002-02-12 CA CA002468389A patent/CA2468389A1/en not_active Abandoned
  • 2002-02-12 AU AU2002229455A patent/AU2002229455A1/en not_active Abandoned
  • 2002-02-12 US US10/496,171 patent/US20050001089A1/en not_active Abandoned
  • 2002-02-12 EP EP02710738A patent/EP1448440A1/de not_active Withdrawn
  • 2002-02-12 WO PCT/CH2002/000082 patent/WO2003045781A1/de not_active Application Discontinuation
  • 2002-02-12 IL IL16201602A patent/IL162016A0/xx unknown

Non-Patent Citations (1)

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