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GB1258191A - - Google Patents

Info

Publication number
GB1258191A
GB1258191A GB329969A GB1258191DA GB1258191A GB 1258191 A GB1258191 A GB 1258191A GB 329969 A GB329969 A GB 329969A GB 1258191D A GB1258191D A GB 1258191DA GB 1258191 A GB1258191 A GB 1258191A
Authority
GB
United Kingdom
Prior art keywords
cushion
pressure
diaphragm
nozzle
fluid device
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.)
Expired
Application number
GB329969A
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 filed Critical
Publication of GB1258191A publication Critical patent/GB1258191A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60V—AIR-CUSHION VEHICLES
    • B60V1/00—Air-cushion
    • B60V1/04—Air-cushion wherein the cushion is contained at least in part by walls
    • B60V1/043—Air-cushion wherein the cushion is contained at least in part by walls the walls being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60V—AIR-CUSHION VEHICLES
    • B60V1/00—Air-cushion
    • B60V1/11—Stability or attitude control
    • B60V1/12—Stability or attitude control by dividing the cushion

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Prevention Devices (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Bridges Or Land Bridges (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

1,258,191. Air cushion vehicles. BRITISH HOVERCRAFT CORP. Ltd. 20 Jan., 1970 [21 Jan., 1969], No. 3299/69. Heading B7K. [Also in Division G3] Variations in pressure within a fluid pressure cushion 8 supporting a load bearing platform 1 are sensed by at least one pure fluid device 13 the output from which actuates pressure control means 31 in the fluid supply 11 to the cushion. The cushion is formed by a diaphragm 2 of natural rubber, neoprene or polyurethane secured at its centre 3 and periphery 4 to the platform. Convolutions concentric to the central fixing provide a number of concentric annular air spaces above the diaphragm when it is retracted. When a pressure fluctuation is sensed in the space above the diaphragm by a pitot tube 15 a pressure signal is transmitted through line 18 and lines 21, 22 to control nozzles 23, 24 of the pure fluid device. A capacity 25 causes a delay in the arrival of the signal at the nozzle 24 so that the flow from the power nozzle 28 is deflected against a bias pressure from a nozzle 27 into an outlet 32 to cause the means 31 to reduce the supply 11. The system may be used to suppress pressure oscillations in the cushion of a hover vehicle. A three-stage proportional amplifier may have its first stage connected to two pads of a four-pad hover pallet and its remaining stages each connected to one of the other two pads. In a further embodiment, the pure fluid device does not sense pressure changes within the cushion but is connected to a jet discharging on to a spring mass responsive to oscillation of the pallet. The system may also be used in conjunction with a vehicle having a supporting cushion divided into separate compartments or a number of separate support cushions.
GB329969A 1969-01-21 1969-01-21 Expired GB1258191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB329969 1969-01-21

Publications (1)

Publication Number Publication Date
GB1258191A true GB1258191A (en) 1971-12-22

Family

ID=9755694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB329969A Expired GB1258191A (en) 1969-01-21 1969-01-21

Country Status (5)

Country Link
US (1) US3648799A (en)
CA (1) CA930700A (en)
DE (1) DE2001831A1 (en)
FR (1) FR2033251A7 (en)
GB (1) GB1258191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160487A (en) * 1984-06-21 1985-12-24 Solving Ky Air cushion pressure regulation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893538A (en) * 1970-08-10 1975-07-08 J Dale Thompson Ground effects vehicle and an air terminal
US3857456A (en) * 1973-04-30 1974-12-31 Little Syst Inc Air cushion craft air supply
US3867994A (en) * 1973-09-10 1975-02-25 Sun Oil Co Surface effect vehicle control system
FR2388756A1 (en) * 1977-04-29 1978-11-24 Creusot Loire HIGH CAPACITY CRANE EQUIPPED WITH A BALANCING DEVICE
US4455945A (en) * 1982-07-06 1984-06-26 Airail Systems, Inc. Air bearing power and traction drive system
DE3400101C1 (en) * 1984-01-03 1985-03-21 Delu-Luftkissentransportgerätetechnik GmbH, 8500 Nürnberg Compressed air control device for an air cushion carrier pallet
JP4327983B2 (en) * 2000-04-18 2009-09-09 オーチス エレベータ カンパニー Ascent control vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1072731A (en) * 1963-06-21 1967-06-21 Hovercraft Dev Ltd Improvements relating to gas-cushion vehicles
FR88602E (en) * 1965-02-01 1967-03-03 Bertin & Cie Advanced feeder for multi-air cushion platforms
US3340943A (en) * 1965-05-07 1967-09-12 Bertin & Cie Air cushion stability control device with adjustable plenum chamber volume
FR1476633A (en) * 1965-12-29 1967-04-14 Bertin & Cie Improvements to air cushion vehicles
GB1210261A (en) * 1967-06-01 1970-10-28 British Hovercraft Corp Ltd Improvements in or relating to air cushion supported platforms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160487A (en) * 1984-06-21 1985-12-24 Solving Ky Air cushion pressure regulation

Also Published As

Publication number Publication date
FR2033251A7 (en) 1970-12-04
DE2001831A1 (en) 1970-10-22
US3648799A (en) 1972-03-14
CA930700A (en) 1973-07-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee