GB2410447A - An inflatable kite - Google Patents

An inflatable kite Download PDF

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Publication number
GB2410447A
GB2410447A GB0401811A GB0401811A GB2410447A GB 2410447 A GB2410447 A GB 2410447A GB 0401811 A GB0401811 A GB 0401811A GB 0401811 A GB0401811 A GB 0401811A GB 2410447 A GB2410447 A GB 2410447A
Authority
GB
United Kingdom
Prior art keywords
kite
bladder
bladders
inflatable
air inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0401811A
Other versions
GB0401811D0 (en
Inventor
Christopher James Gray
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0401811A priority Critical patent/GB2410447A/en
Publication of GB0401811D0 publication Critical patent/GB0401811D0/en
Publication of GB2410447A publication Critical patent/GB2410447A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H27/00—Toy aircraft; Other flying toys
    • A63H27/08—Kites
    • A63H27/085—Inflatable kites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C31/00—Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
    • B64C31/06—Kites

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

An inflatable kite comprises two inflatable bladders 2, 3 attached to the leading edge of the upper 5 and lower 6 skins. The bladders form an air inlet 1 for the kite. Inflatable ribs (8 fig 4) are placed between the two bladders to provide bracing for the structure. The bladders may be arranged in concentric or non concentric circles according to the desired aerodynamic profile (fig 2, 3).

Description

1 241 0447 An Air Inlet For A Kite
Background
In recent years new applications for the kite have been discovered. Many recreational sports now use kites to power land and marine vehicles.
Current marine kites are limited in terms of their aerodynamic performance. The majority of these marine kites consist of a single inflatable bladder at the leading edge and multiple inflatable ribs tangential to the leading edge. The main aerodynamic surface is attached to these inflatable structures and is usually made from a flexible material such as "ripstop". This arrangement gives the kite a rigid structure and allows the kite to be launched from the water's surface. It is not however the most desirable aerodynamic profile.
My invention comprises of an air inlet to a kite that will improve the aerodynamic profile and hence the flying characteristics of the kite.
Figure I Shows the arrangement of inflatable bladders / bladder.
Figure 2 Shows bladders arranged in concentric arcs to create an inlet Figure 3 Shows bladders arranged in non-concentric arcs to create an inlet Figure 4 Shows the inter-bracing material and how the origin and radius of the arcs may be varied to improve aerodynamic performance.
The inlet I is formed by arranging inflatable bladders 2 & 3 in close fitting arcs (Figure 1). A similar arrangement may be achieved by using a single continuous bladder, ie items 2 & 3 are linked by an air passage 4.
The inlet I is located at, or near the leading edge of the kite. The inlet permits air to enter the body of the kite and fill a volume between a flexible upper skin 5 and flexible lower skin 6 (see Figure 2). This air exerts a pressure on the upper and lower skins, thereby displacing the skins into a desired shape, an aerofoil profile 7 for
example.
The arcs formed by the bladders do not necessarily have the same radius or origin (Figure 2 and Figure 3).
The bladders / bladder may be inter-braced 8 with material or battens to help maintain the inlet shape when flying (Figure 4).
The kite will distort as it is loaded aerodynamically. It may be desirable to vary the location of the origin D and / or the radius R of the arcs with respect to a distance S along the bladder (see Figure 4). Each bladder may be subject to these variations in order to fine tune the aerodynamic profile of the inlet.
Figures & Key Figure 1: Shows the arrangement of inflatable bladders / bladder to create an inlet.
(Front Elevation) Figure 2: Shows bladders arranged in concentric arcs with equal radii (Section View) Figure 3: Shows bladders arranged in non-concentric arcs.
(Section View) Figure 4: Shows the inter-bracing of air inlet and variations of arc radius and origin position.
(Front Elevation) Key: 1. Air Inlet 2. Inflatable Bladder 3. Inflatable Bladder 4. Possible Air Passage At Interface 5. Upper Skin 6. Lower Skin 7. Desired Aerofoil Profile 8. Bracing Material 9. Kite Central Axis

Claims (3)

  1. Claims I claim; 1. The arrangement of inflatable bladders or bladder, in
    concentric or non-concentric arcs, to create an air inlet structure for a kite.
  2. 2. An air inlet as claimed in Claim I where the radius of the arc formed by a bladder, varies continuously or discreetly with respect to a distance measured along the length of said bladder.
  3. 3. An air inlet as claimed in Claim 1 or Claim 2 where the origin of an arc formed by a bladder, is not fixed relative to the kite but alters position continuously or discreetly with respect to a distance measured along the length of said bladder.
GB0401811A 2004-01-28 2004-01-28 An inflatable kite Withdrawn GB2410447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0401811A GB2410447A (en) 2004-01-28 2004-01-28 An inflatable kite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0401811A GB2410447A (en) 2004-01-28 2004-01-28 An inflatable kite

Publications (2)

Publication Number Publication Date
GB0401811D0 GB0401811D0 (en) 2004-03-03
GB2410447A true GB2410447A (en) 2005-08-03

Family

ID=31971568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0401811A Withdrawn GB2410447A (en) 2004-01-28 2004-01-28 An inflatable kite

Country Status (1)

Country Link
GB (1) GB2410447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021107966B3 (en) 2021-03-30 2022-09-29 Simon Hafenecker paraglider

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032481A1 (en) * 1990-10-12 1992-04-16 Stefan Reich Para-glider made of inflatable airtight material - has aerofoil cross=section which is stabilised by inflatable tube fitted to leading edge
DE19809580A1 (en) * 1998-03-06 1999-12-02 Burghardt Krebber Parafoil with improved security and flight properties
WO2003080434A1 (en) * 2002-03-26 2003-10-02 Georg Koziel Tubekite with an improved aerodynamic profile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032481A1 (en) * 1990-10-12 1992-04-16 Stefan Reich Para-glider made of inflatable airtight material - has aerofoil cross=section which is stabilised by inflatable tube fitted to leading edge
DE19809580A1 (en) * 1998-03-06 1999-12-02 Burghardt Krebber Parafoil with improved security and flight properties
WO2003080434A1 (en) * 2002-03-26 2003-10-02 Georg Koziel Tubekite with an improved aerodynamic profile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021107966B3 (en) 2021-03-30 2022-09-29 Simon Hafenecker paraglider

Also Published As

Publication number Publication date
GB0401811D0 (en) 2004-03-03

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)