GB2352431A - Aircraft tyre air scoops for rotating undercarriage wheel - Google Patents

Aircraft tyre air scoops for rotating undercarriage wheel Download PDF

Info

Publication number
GB2352431A
GB2352431A GB9917478A GB9917478A GB2352431A GB 2352431 A GB2352431 A GB 2352431A GB 9917478 A GB9917478 A GB 9917478A GB 9917478 A GB9917478 A GB 9917478A GB 2352431 A GB2352431 A GB 2352431A
Authority
GB
United Kingdom
Prior art keywords
air scoops
aircraft
wheel
axis
tyre
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Withdrawn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
GB9917478A
Other versions
GB9917478D0 (en
Inventor
Norman Evans
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 GB9917478A priority Critical patent/GB2352431A/en
Publication of GB9917478D0 publication Critical patent/GB9917478D0/en
Publication of GB2352431A publication Critical patent/GB2352431A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/40—Alighting gear characterised by elements which contact the ground or similar surface  the elements being rotated before touch-down

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Tires In General (AREA)

Abstract

Resiliant rubber air scoops attached to or part of the side walls of an aircrafts landing wheels tyres so that when the wheels are lowered into the airstream prior to landing the rubber pockets below the axis of rotation cause considerable resistance to the airflow whilst the pockets above the axis of rotation cause minimal resistance causing the wheel to rotate at a speed at touch down similar to the ground speed of the aircraft.

Description

1 2352431 AIRCRAFT UNDERCARRIAGES
Field of the Invention
This invention relates to aircraft undercarriages.
When an aircraft comes into land, the undercarriage is lowered and then, when the aircraft actually touches down, there is a "screech" as the vehicle wheels are caused to accelerate rapidly to match the forward speed of the aircraft.
This action inevitably produces tyre wear and it is accordingly an object of the present invention to provide means for reduzing the amount of tyre wear.
Summary of the Invention
According to the present invention there is provided an aircraft undercarriage which includes means whereby, when the aircraft is coming in to land and the undercarriage is lowered, the wheels of the undercarriage are caused to rotate at a speed proximating to that of the landing speed of the aircraft.
The means for causing the wheels to rotate preferably comprises air scoops which are so shaped that the airflow encountered during landing produces the required wheel rotation.
The air scoops may be part of or be attached to the tyres of the undercarriage wheels. The air scoops may be in the form of resilient rubber pockets bonded to the outer sides of the tyres so that when a scoop is below the axis of rotation of the respective tyre, it produces substantial resistance to air flow whereas, when the scoop is above the axis of rotation of the respective tyre, it produces minimal resistance to air flow.
The rubber pockets may also be formed by arcuate flaps bonded to the vehicle tyre with the resilient nature of the rubber permitting each of the flaps to be pressed against the adjacent part of the 'wall of the tyre when the flap is above the axis of -ihii wheel whereas, when the flap is below the axis of the wheel, the pocket effectively opens to provide substantial resistance to airflow and hence rotation of the wheel.
The configurations of the scoops and the number of scoops for each wheel or tyre will depend on the geometries of the wheels and tyres and on the aircraft landing speed.
Brief Description of the Drawings
Figures 1, 2 and 3 are a side elevation, end elevation and plan view of a first form of scoop for attachment to the tyre of a wheel of an aircraft undercarriage, Figure 4 shows a plurality of scoops as shown in Figures 1 to 3 attached to a tyre, Figures 5, 6 and 7 are a side elevation, end elevation and plan view of a second form of scoop for attachment to the tyre of a wheel of an aircraft undercarriage, and Figure 8 shows a plurality of scoops as shown in Figures 5 to 7 attached to a tyre.

Claims (4)

  1. I A number of resilient rubber air scoops attached to or part of the side walls of an aircraft landing wheel tyre so situated as to cause the wheel to rotate when lowered into the airstream prior to landing.
  2. 2. Air scoops as claimed in Claim One but whose resiliant nature enable the scoop to lie flat against the aircraft tyre when above the axis Of rotation but opens when below the axis of rotation.
  3. 3- Air scoops as claimed in Claim One and Claim Two which are made of rubber or neoprene or similar resilient material.
  4. 4. Air scoops substantially as herein described and illustrated in the accompanying drawings.
GB9917478A 1999-07-27 1999-07-27 Aircraft tyre air scoops for rotating undercarriage wheel Withdrawn GB2352431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9917478A GB2352431A (en) 1999-07-27 1999-07-27 Aircraft tyre air scoops for rotating undercarriage wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9917478A GB2352431A (en) 1999-07-27 1999-07-27 Aircraft tyre air scoops for rotating undercarriage wheel

Publications (2)

Publication Number Publication Date
GB9917478D0 GB9917478D0 (en) 1999-09-29
GB2352431A true GB2352431A (en) 2001-01-31

Family

ID=10857921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9917478A Withdrawn GB2352431A (en) 1999-07-27 1999-07-27 Aircraft tyre air scoops for rotating undercarriage wheel

Country Status (1)

Country Link
GB (1) GB2352431A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372487A (en) * 2001-02-21 2002-08-28 Kenneth Harold Newton Aircraft wheel tyre with vanes for spinning the wheel
BE1013978A3 (en) * 2001-02-22 2003-01-14 Ridder Walter Renu De Airplane wheel, especially for folding landing gear, provided with scoops
US20160059955A1 (en) * 2014-08-26 2016-03-03 Daito Press Mfg. Co., Ltd. Aircraft tire
US10597147B2 (en) 2016-08-10 2020-03-24 Daito Press Mfg. Co., Ltd. Aircraft tire

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516738A (en) * 1938-07-06 1940-01-10 Vickers Aviat Ltd Improvements in landing wheels for aircraft
GB588959A (en) * 1944-08-11 1947-06-06 Wingfoot Corp Prerotation airplane tire and method of making it
GB640552A (en) * 1947-03-01 1950-07-19 Goodrich Co B F Improvements in or relating to a tire
GB2080217A (en) * 1980-07-26 1982-02-03 Brookes Rex Harward Improvements in or relating to aircraft undercarriage wheels
GB2193932A (en) * 1986-08-14 1988-02-24 Peter John Evans Tyres for aircraft landing gear
GB2247659A (en) * 1990-09-10 1992-03-11 Gerard Ian Hamilton Aircraft wheel with means to rotate it

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516738A (en) * 1938-07-06 1940-01-10 Vickers Aviat Ltd Improvements in landing wheels for aircraft
GB588959A (en) * 1944-08-11 1947-06-06 Wingfoot Corp Prerotation airplane tire and method of making it
GB640552A (en) * 1947-03-01 1950-07-19 Goodrich Co B F Improvements in or relating to a tire
GB2080217A (en) * 1980-07-26 1982-02-03 Brookes Rex Harward Improvements in or relating to aircraft undercarriage wheels
GB2193932A (en) * 1986-08-14 1988-02-24 Peter John Evans Tyres for aircraft landing gear
GB2247659A (en) * 1990-09-10 1992-03-11 Gerard Ian Hamilton Aircraft wheel with means to rotate it

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372487A (en) * 2001-02-21 2002-08-28 Kenneth Harold Newton Aircraft wheel tyre with vanes for spinning the wheel
BE1013978A3 (en) * 2001-02-22 2003-01-14 Ridder Walter Renu De Airplane wheel, especially for folding landing gear, provided with scoops
US20160059955A1 (en) * 2014-08-26 2016-03-03 Daito Press Mfg. Co., Ltd. Aircraft tire
CN105383686A (en) * 2014-08-26 2016-03-09 大东冲压工业株式会社 Aircraft tire
US9731817B2 (en) * 2014-08-26 2017-08-15 Daito Press Mfg. Co., Ltd. Aircraft tire
CN105383686B (en) * 2014-08-26 2018-11-13 大东冲压工业株式会社 Aircraft tire
US10597147B2 (en) 2016-08-10 2020-03-24 Daito Press Mfg. Co., Ltd. Aircraft tire

Also Published As

Publication number Publication date
GB9917478D0 (en) 1999-09-29

Similar Documents

Publication Publication Date Title
US7661753B2 (en) Adjustable aerodynamic splitter
US4601508A (en) Streamlining appendage for vehicles
US2403309A (en) Tire for airplane wheels
CA2420106A1 (en) Seaplane with retractable twin floats
US2281212A (en) Material spreader
GB2080217A (en) Improvements in or relating to aircraft undercarriage wheels
US3981462A (en) Air-cushion landing gear for aircraft
GB2352431A (en) Aircraft tyre air scoops for rotating undercarriage wheel
ITBO20070740A1 (en) ANTI-AQUAPLANING DEVICE AND METHOD
US4491288A (en) Aircraft landing wheel rotating means
US4102423A (en) Ground traction devices
US2424941A (en) Wheel gear
US7096904B2 (en) Off road tire having variable width puncture preventing pads
CN206012230U (en) Sucked type tire
CN210436920U (en) Octopus-imitated sucker type anti-skid tire
CN206733987U (en) A kind of land and air double-used goalpost shape hovercar
CN206287769U (en) A kind of carplane
US2764205A (en) Tire track shoe-chevron grouser
CN220842944U (en) Landing gear slide for an aircraft, landing gear assembly and flying vehicle
CN2190038Y (en) Airplane tyre
JP3115013U (en) An aircraft wheel that rotates in advance due to natural wind pressure when landing.
CN201414284Y (en) Farm machinery chassis
CN206579399U (en) A kind of pneumatic type tire-prick preventing device for automobile
JPH03125677A (en) Air spoiler
CN206217526U (en) A kind of wheel is dwelt hovercar using the land, water and air three that rhombus is laid out

Legal Events

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