WO1998001310A1 - Device for automatic maintenance of correct tyre pressure - Google Patents

Device for automatic maintenance of correct tyre pressure Download PDF

Info

Publication number
WO1998001310A1
WO1998001310A1 PCT/GB1997/001798 GB9701798W WO9801310A1 WO 1998001310 A1 WO1998001310 A1 WO 1998001310A1 GB 9701798 W GB9701798 W GB 9701798W WO 9801310 A1 WO9801310 A1 WO 9801310A1
Authority
WO
WIPO (PCT)
Prior art keywords
tyre
pressure
air
reservoir
pump
Prior art date
Application number
PCT/GB1997/001798
Other languages
French (fr)
Inventor
Paul Beck
Original Assignee
Paul Beck
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 Paul Beck filed Critical Paul Beck
Priority to AU33540/97A priority Critical patent/AU3354097A/en
Publication of WO1998001310A1 publication Critical patent/WO1998001310A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/10—Arrangement of tyre-inflating pumps mounted on vehicles
    • B60C23/12—Arrangement of tyre-inflating pumps mounted on vehicles operated by a running wheel
    • B60C23/126—Arrangement of tyre-inflating pumps mounted on vehicles operated by a running wheel the pumps being mounted on the wheel rims
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/10—Arrangement of tyre-inflating pumps mounted on vehicles
    • B60C23/12—Arrangement of tyre-inflating pumps mounted on vehicles operated by a running wheel
    • B60C23/133—Arrangement of tyre-inflating pumps mounted on vehicles operated by a running wheel activated by centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/16—Arrangement of air tanks mounted on vehicles

Definitions

  • This invention relates to pneumatic tyres, in particular to a device which enables the tyre to be maintained at the correct pressure.
  • Pneumatic tyres need to be at the correct pressure to be at their most efficient, which includes for braking, handling, grip, durability, safety and comfort, since the pressure within the tyre will dictate the size, shape, flexibility and area of the tyre which will be in contact with the ground.
  • the aim of the present invention is to provide means to adjust the tyre pressure automatically in response to changing conditions .
  • a device for automatically maintaining the correct pressure within a vehicle tyre comprising a reservoir of compressed air, means for supplying compressed air, valve means responsive to load on the tyre, which valve means delivers compressed air from the reservoir to the interior of the tyre when higher pressure is required, and a bleed valve or pump in fluid connection with the interior of the tyre to remove air from the tyre when a lower pressure is required, the bleed valve being set to provide a predetermined minimum tyre pressure.
  • the invention thus provides a monitor of whether the pneumatic tyre requires more or less pressure.
  • a reserve of air under pressure is maintained to feed the need for higher pressure within the tyre. Air is released or withdrawn from the tyre automatically when a lower pressure is required. No action is necessary on the part of the driver.
  • the device may be formed integrally in the vehicle wheel or tyre construction at the design stage. Alternatively, the device may be separately constructed so as to be attachable to a wheel or tyre, for example as an after-fitment.
  • the air supply may be obtained by any suitable means and there are many types of automatic tyre inflator which are already known.
  • a manual pump may be directly driven from an arm fixed to the suspension/stub axle assembly.
  • the pump may be driven from a rotating weighted assembly located in the wheel or the hubcap.
  • the pump may be an electric pump located within the wheel.
  • Such a pump may be driven by electricity generated from a wheel rim winding/conductor and an electromagnet fixed to the stub axle/suspension assembly. All the above embodiments are independent assemblies which can be added to an existing vehicle.
  • Further means of supplying the pressurised air include driving an electric pump located within the wheel by means of electricity sourced from the main vehicle electrics via brushes/pick up rings in the stub axle/drive shafts.
  • the pump may be mounted elsewhere on the car and air supplied via channels and/or holes in the stub/axle drive shafts etc.. The latter two embodiments would require to be incorporated in the initial design of the vehicle.
  • Figure 1 shows a cross-section through a wheel fitted with an embodiment of the present invention
  • Figure 2 shows an air pressure reservoir, pump and drive arm.
  • Figure 3 shows a modified embodiment incorporated in a vehicle with MacPherson strut suspension
  • Figure 4 shows a computer generated model of a tyre showing the inner chamber and a pressure adjusting valve.
  • the device includes an inner reservoir 1 located within an ordinary steel wheel and tyre 2.
  • the inner reservoir 1 is not expandable but is made from an air-tight, flexible material.
  • the reservoir 1 has a smaller capacity than the tyre 2. Compressed air is stored in the reservoir.
  • the reservoir is supplied with an elongate non-return outlet valve 3.
  • the valve 3 is activated by contact with the inner side of the tyre tread.
  • the valve 3 may be designed to operate only when a centrifugal force acts upon it. For example, a spring of desired pressure holds the valve closed whilst the tyre is stationary.
  • the length of the elongate valve 3 is dictated by the type of tyre and the desired tyre operating characteristics for best performance.
  • the valve may also incorporate an adjusting mechanism by way of a flexible rodline with a threaded end, attached to the valve wall and passing through a hole with an airtight seal to an adjustable nut allowing the length of this valve, and thus the operating characteristics of the tyre, to be varied as required.
  • An air pressure supply is connected to the inner reservoir 1.
  • the air pressure supply may. be obtained by any suitable means, such as a pump.
  • the pressure of the supply is limited to the maximum designed pressure of the tyre.
  • a second outlet valve 5 is connected to the interior of the tyre. This second valve is not connected to the inner reservoir 1 but acts as a pressure relief valve for the interior of the tyre. Valve 5 is a bleed valve and allows a constant bleed of air out of the tyre until a set minimum tyre pressure is reached. Two further valves are provided. A conventional inflation/deflation valve is fitted to the tyre but not the inner reservoir 1. A second conventional inflation/deflation valve is fitted to the inner reservoir through the tyre.
  • the invention operates as follows.
  • the pump automatically pumps air, at e.g. 50psi, into the inner reservoir.
  • the elongate valve 3, which is responsive to the loads acting on the tyre, as defined by the interior height of the tyre at the ground-engaging point, releases air into the interior of the tyre when a higher pressure is required.
  • Bleed valve 5 is set to the pre-determined minimum air pressure, e.g. 30psi.
  • Elongate valve 3 can release air from the reservoir 1 faster than the air can bleed out of bleed valve 5. Therefore the pressure within the tyre can be adjusted either upwards, towards 50psi for example, or downwards towards the set minimum, according to the load on the tyres .
  • FIG. 2 there is shown one embodiment for driving a pump or compressor to supply compressed air to the reservoir 1.
  • a pump 6 mounted in the base of the wheel rim has a magnetically responsive pump element.
  • a support arm 7 mounted on a fixed part of the wheel carrier 8 carries a magnet 9 on its outer end 10 which, as the wheel rotates, is brought into close proximity to the pump 7 to cause the pump element to function. More than one magnet may be disposed about the axis of the wheel to provide more than one pumping action per revolution of the wheel .
  • the inner reservoir may also function as a safety feature by resisting the complete collapse of the tyre following a puncture .
  • the vehicle wheel incorporates an air pump or compressor 6 which, during rotation of the wheel, will transfer air to the reservoir 1 from the interior of the tyre 2, thus increasing the pressure in the reservoir and decreasing pressure in the tyre 2.
  • pressure in the tyre will gradually reduce, reducing the height of the tyre until the valve 3 touches the interior wall of the tyre tread when that part of the tyre holding the valve is at the ground contact point. This will release some air from the reservoir 1 into the tyre 2 to tend to increase its height.
  • valves 3 and 6 thus function together cyclically to ensure that as the pump 6 tends to reduce the pressure in the tyre, the valve 3 tends to increase the pressure thus maintaining a balance in the tyre which mantains the tyre at the correct pressure at all times appropriate to the actual load on the tyre and/or its temperature.
  • a reservoir of high pressure air or gas which may be liquified in the interior of the reservoir 1 which is designed to leak air into the reservoir 1 through a pressure release valve to maintain the amount of air in the two volumes 1 and 2 substantially constant, automatically compensating for slight leakage or seepage of air from the tyre during use.
  • a pressure release valve to maintain the amount of air in the two volumes 1 and 2 substantially constant, automatically compensating for slight leakage or seepage of air from the tyre during use.
  • the valve 6 may include a form of adjustment to enable the desired tyre height to be preset to a desired level. It is preferable such that valve the can function only when acted upon by centrifugal force, i.e. when the wheel is rotating.
  • the pump 6 could draw air into the tyre 2 directly from the outside, or into the reservoir 1 with a slow release valve allowing air from the reservoir to enter the tyre 2.
  • the pump 6 may be driven by centrifugal force, an electric motor driven by an inductive coupling or even by a mechanical coupling mounted on the wheel hub carrier or suspension.
  • a non-contact electric coupling is however preferred.

Abstract

A device for automatically maintaining the correct pressure within a vehicle tyre (2) comprises a reservoir (1) of compressed air, a pump (6) for supplying the compressed air, valve means (3) responsive to load on the tyre, which valve means delivers compressed air from the reservoir to the interior of the tyre (2) when higher pressure is required, and a bleed valve (5) or pump (6) in fluid connection with the interior of the tyre to release air from the tyre when a lower pressure is required, the bleed valve or pump being set to provide a predetermined minimum tyre pressure.

Description

Device for Automatic Maintenance of correct Tyre pressure
This invention relates to pneumatic tyres, in particular to a device which enables the tyre to be maintained at the correct pressure.
Pneumatic tyres need to be at the correct pressure to be at their most efficient, which includes for braking, handling, grip, durability, safety and comfort, since the pressure within the tyre will dictate the size, shape, flexibility and area of the tyre which will be in contact with the ground.
Various factors affect the correct pressure needed to obtain peak efficiency and these may vary for a particular vehicle from one day to another and even a number of times within the same journey. These factors include weight, load of vehicle, temperature, speed of travel, etc.
It is inconvenient for a vehicle to be required to stop to change tyre pressure whenever a change of factors is anticipated. Therefore the aim of the present invention is to provide means to adjust the tyre pressure automatically in response to changing conditions .
According to the present invention there is provided a device for automatically maintaining the correct pressure within a vehicle tyre comprising a reservoir of compressed air, means for supplying compressed air, valve means responsive to load on the tyre, which valve means delivers compressed air from the reservoir to the interior of the tyre when higher pressure is required, and a bleed valve or pump in fluid connection with the interior of the tyre to remove air from the tyre when a lower pressure is required, the bleed valve being set to provide a predetermined minimum tyre pressure.
The invention thus provides a monitor of whether the pneumatic tyre requires more or less pressure. A reserve of air under pressure is maintained to feed the need for higher pressure within the tyre. Air is released or withdrawn from the tyre automatically when a lower pressure is required. No action is necessary on the part of the driver. The device may be formed integrally in the vehicle wheel or tyre construction at the design stage. Alternatively, the device may be separately constructed so as to be attachable to a wheel or tyre, for example as an after-fitment.
The air supply may be obtained by any suitable means and there are many types of automatic tyre inflator which are already known. For example, a manual pump may be directly driven from an arm fixed to the suspension/stub axle assembly. The pump may be driven from a rotating weighted assembly located in the wheel or the hubcap. Alternatively the pump may be an electric pump located within the wheel. Such a pump may be driven by electricity generated from a wheel rim winding/conductor and an electromagnet fixed to the stub axle/suspension assembly. All the above embodiments are independent assemblies which can be added to an existing vehicle.
Further means of supplying the pressurised air include driving an electric pump located within the wheel by means of electricity sourced from the main vehicle electrics via brushes/pick up rings in the stub axle/drive shafts. The pump may be mounted elsewhere on the car and air supplied via channels and/or holes in the stub/axle drive shafts etc.. The latter two embodiments would require to be incorporated in the initial design of the vehicle.
To assist a clear understanding of the invention a more detailed description is given below with reference to the following drawings in which:
Figure 1 shows a cross-section through a wheel fitted with an embodiment of the present invention; and
Figure 2 shows an air pressure reservoir, pump and drive arm.
Figure 3 shows a modified embodiment incorporated in a vehicle with MacPherson strut suspension, and
Figure 4 shows a computer generated model of a tyre showing the inner chamber and a pressure adjusting valve.
As shown in Figure 1 the device includes an inner reservoir 1 located within an ordinary steel wheel and tyre 2. The inner reservoir 1 is not expandable but is made from an air-tight, flexible material. The reservoir 1 has a smaller capacity than the tyre 2. Compressed air is stored in the reservoir. The reservoir is supplied with an elongate non-return outlet valve 3. The valve 3 is activated by contact with the inner side of the tyre tread. The valve 3 may be designed to operate only when a centrifugal force acts upon it. For example, a spring of desired pressure holds the valve closed whilst the tyre is stationary.
The length of the elongate valve 3 is dictated by the type of tyre and the desired tyre operating characteristics for best performance. The valve may also incorporate an adjusting mechanism by way of a flexible rodline with a threaded end, attached to the valve wall and passing through a hole with an airtight seal to an adjustable nut allowing the length of this valve, and thus the operating characteristics of the tyre, to be varied as required.
An air pressure supply is connected to the inner reservoir 1. The air pressure supply may. be obtained by any suitable means, such as a pump. The pressure of the supply is limited to the maximum designed pressure of the tyre.
A second outlet valve 5 is connected to the interior of the tyre. This second valve is not connected to the inner reservoir 1 but acts as a pressure relief valve for the interior of the tyre. Valve 5 is a bleed valve and allows a constant bleed of air out of the tyre until a set minimum tyre pressure is reached. Two further valves are provided. A conventional inflation/deflation valve is fitted to the tyre but not the inner reservoir 1. A second conventional inflation/deflation valve is fitted to the inner reservoir through the tyre.
The invention operates as follows. The pump automatically pumps air, at e.g. 50psi, into the inner reservoir. The elongate valve 3, which is responsive to the loads acting on the tyre, as defined by the interior height of the tyre at the ground-engaging point, releases air into the interior of the tyre when a higher pressure is required. Bleed valve 5 is set to the pre-determined minimum air pressure, e.g. 30psi. Elongate valve 3 can release air from the reservoir 1 faster than the air can bleed out of bleed valve 5. Therefore the pressure within the tyre can be adjusted either upwards, towards 50psi for example, or downwards towards the set minimum, according to the load on the tyres .
In the above description specific details of an embodiment of the invention have been provided for a thorough understanding of the inventive concept. It will be understood by those skilled in the art that many of these details may be varied without departing from the scope of the invention. For example, the specific embodiment discloses the invention used with a tubeless tyre but it will be understood that it is equally applicable to a tyre having an inner tube.
Referring now to Figure 2, there is shown one embodiment for driving a pump or compressor to supply compressed air to the reservoir 1. A pump 6 mounted in the base of the wheel rim has a magnetically responsive pump element. A support arm 7 mounted on a fixed part of the wheel carrier 8 carries a magnet 9 on its outer end 10 which, as the wheel rotates, is brought into close proximity to the pump 7 to cause the pump element to function. More than one magnet may be disposed about the axis of the wheel to provide more than one pumping action per revolution of the wheel .
The inner reservoir may also function as a safety feature by resisting the complete collapse of the tyre following a puncture .
Referring now to the embodiment of Figure 3, like parts bear like references to the embodiment described with reference to Figure 1. The vehicle wheel incorporates an air pump or compressor 6 which, during rotation of the wheel, will transfer air to the reservoir 1 from the interior of the tyre 2, thus increasing the pressure in the reservoir and decreasing pressure in the tyre 2. Thus, pressure in the tyre will gradually reduce, reducing the height of the tyre until the valve 3 touches the interior wall of the tyre tread when that part of the tyre holding the valve is at the ground contact point. This will release some air from the reservoir 1 into the tyre 2 to tend to increase its height. The two valves 3 and 6 thus function together cyclically to ensure that as the pump 6 tends to reduce the pressure in the tyre, the valve 3 tends to increase the pressure thus maintaining a balance in the tyre which mantains the tyre at the correct pressure at all times appropriate to the actual load on the tyre and/or its temperature.
In an alternative embodiment, there is a reservoir of high pressure air or gas, which may be liquified in the interior of the reservoir 1 which is designed to leak air into the reservoir 1 through a pressure release valve to maintain the amount of air in the two volumes 1 and 2 substantially constant, automatically compensating for slight leakage or seepage of air from the tyre during use. In this way, it is possible that the tyres will need no attention between the routine services of the vehicle.
The valve 6 may include a form of adjustment to enable the desired tyre height to be preset to a desired level. It is preferable such that valve the can function only when acted upon by centrifugal force, i.e. when the wheel is rotating.
It is possible that the pump 6 could draw air into the tyre 2 directly from the outside, or into the reservoir 1 with a slow release valve allowing air from the reservoir to enter the tyre 2.
The pump 6 may be driven by centrifugal force, an electric motor driven by an inductive coupling or even by a mechanical coupling mounted on the wheel hub carrier or suspension. A non-contact electric coupling is however preferred.

Claims

1. A device for automatically maintaining the correct pressure within a vehicle tyre comprising a reservoir of compressed air, means for supplying compressed air, valve means responsive to load on the tyre, which valve means delivers compressed air from the reservoir to the interior of the tyre when higher pressure is required, and a bleed valve or pump in fluid connection with the interior of the tyre to remove air from the tyre when a lower pressure is required, the bleed valve being set to provide a predetermined minimum tyre pressure.
2. A device according to claim 1, including a reservoir of air under pressure within the tyre or wheel rim and means adapted to feed the need for higher pressure within the tyre.
3. A device according claim 1 or 2, wherein air is released from the tyre automatically when a lower pressure is required, the air being vented to atmosphere or pumped to the reservoir, when present.
4. A device according to claim 1, 2 or 3 , wherein the device is formed integrally in the vehicle wheel or tyre.
5. A device according to claims 1, 2 or 3 , wherein the device is separately constructed so as to be attachable to an existing wheel or tyre.
6. A device according any one of claims 1 to 5, wherein the air supply is obtained by means of a pump or compressor.
7. A device according to claim 6 , wherein the pump is driven by centrifugal force generated by rotation of the tyre, or by electricity by means of an inductive or electromagnetic coupling.
8. A device according to claim 6, wherein the pump is driven by a mechanical coupling mounted on a fixed part of the wheel carrier.
PCT/GB1997/001798 1996-07-03 1997-07-03 Device for automatic maintenance of correct tyre pressure WO1998001310A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33540/97A AU3354097A (en) 1996-07-03 1997-07-03 Device for automatic maintenance of correct tyre pressure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9613945.6 1996-07-03
GBGB9613945.6A GB9613945D0 (en) 1996-07-03 1996-07-03 Device for automatic maintenance of correct tyre pressure

Publications (1)

Publication Number Publication Date
WO1998001310A1 true WO1998001310A1 (en) 1998-01-15

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PCT/GB1997/001798 WO1998001310A1 (en) 1996-07-03 1997-07-03 Device for automatic maintenance of correct tyre pressure

Country Status (3)

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GB (1) GB9613945D0 (en)
WO (1) WO1998001310A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2346591A (en) * 1999-02-11 2000-08-16 Neil Kenneth Weatherill Motor vehicle wheel with inflatable tyre
EP1000777A3 (en) * 1998-11-16 2003-06-04 Gerrit Jan Dijk Tyre and pressure change system with such a tyre
WO2004039610A1 (en) * 2002-10-31 2004-05-13 Edward Hanna Inflating system integrated on the vehicle wheel
WO2005007425A1 (en) * 2003-03-27 2005-01-27 Jansson Sven A Air pressure control system and operation of air pump for vehicle tyres
FR2862909A1 (en) * 2003-12-02 2005-06-03 Renault Sas Emergency braking control procedure for motor vehicle uses reduction in tire pressure to reduce braking distance
WO2010036870A1 (en) * 2008-09-26 2010-04-01 Hendrickson Usa, L.L.C. Tire inflation system with parallel pump
ES2545671A1 (en) * 2015-03-27 2015-09-14 Universidad De La Rioja Automatic device for tire inflation (Machine-translation by Google Translate, not legally binding)
GB2539240A (en) * 2015-06-11 2016-12-14 Bentley Motors Ltd Method of estimating load on a vehicle
DE102016000724A1 (en) * 2016-01-23 2017-07-27 Audi Ag Gas pressure regulating device for the interior of a tire mounted on a rim
US10953706B2 (en) 2015-12-29 2021-03-23 Bridgestone Americas Tire Operations, Llc Air storage system for rapid tire inflation
US10953707B2 (en) 2015-12-29 2021-03-23 Bridgestone Americas Tire Operations, Llc Air distribution system for rapid tire inflation
US11021023B2 (en) 2015-12-29 2021-06-01 Bridgestone Americas Tire Operations, Llc Rapid tire inflation system with air compressor
US20220234399A1 (en) * 2021-01-22 2022-07-28 John Henecke Tire pressure regulation system and method for using same
DE102014103412B4 (en) 2014-03-13 2023-06-29 Bentley Motors Ltd. Vehicle wheel with adjustable tire pressure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB105650A (en) * 1916-05-16 1917-04-26 Richard Rutherford Improvements in Wheels for Road Vehicles.
FR750932A (en) * 1932-12-01 1933-08-22 Improvement in elastic devices for the suspension of pneumatic vehicles and wheels, including application
GB1031095A (en) * 1962-05-11 1966-05-25 Dunlop Rubber Co Improvements in or relating to inflation devices for pneumatic tyres
DE8715177U1 (en) * 1987-11-14 1988-01-07 Kromer, Karl-Hans, Prof. Dr.-Ing., 5300 Bonn, De
US5355924A (en) * 1992-10-06 1994-10-18 Hughes Aircraft Company Vehicle wheel including self-inflating mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB105650A (en) * 1916-05-16 1917-04-26 Richard Rutherford Improvements in Wheels for Road Vehicles.
FR750932A (en) * 1932-12-01 1933-08-22 Improvement in elastic devices for the suspension of pneumatic vehicles and wheels, including application
GB1031095A (en) * 1962-05-11 1966-05-25 Dunlop Rubber Co Improvements in or relating to inflation devices for pneumatic tyres
DE8715177U1 (en) * 1987-11-14 1988-01-07 Kromer, Karl-Hans, Prof. Dr.-Ing., 5300 Bonn, De
US5355924A (en) * 1992-10-06 1994-10-18 Hughes Aircraft Company Vehicle wheel including self-inflating mechanism

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1000777A3 (en) * 1998-11-16 2003-06-04 Gerrit Jan Dijk Tyre and pressure change system with such a tyre
GB2346591A (en) * 1999-02-11 2000-08-16 Neil Kenneth Weatherill Motor vehicle wheel with inflatable tyre
WO2004039610A1 (en) * 2002-10-31 2004-05-13 Edward Hanna Inflating system integrated on the vehicle wheel
WO2005007425A1 (en) * 2003-03-27 2005-01-27 Jansson Sven A Air pressure control system and operation of air pump for vehicle tyres
FR2862909A1 (en) * 2003-12-02 2005-06-03 Renault Sas Emergency braking control procedure for motor vehicle uses reduction in tire pressure to reduce braking distance
WO2010036870A1 (en) * 2008-09-26 2010-04-01 Hendrickson Usa, L.L.C. Tire inflation system with parallel pump
US8528611B2 (en) 2008-09-26 2013-09-10 Hendrickson Usa, L.L.C. Tire inflation system with parallel pump
DE102014103412B4 (en) 2014-03-13 2023-06-29 Bentley Motors Ltd. Vehicle wheel with adjustable tire pressure
ES2545671A1 (en) * 2015-03-27 2015-09-14 Universidad De La Rioja Automatic device for tire inflation (Machine-translation by Google Translate, not legally binding)
GB2539240A (en) * 2015-06-11 2016-12-14 Bentley Motors Ltd Method of estimating load on a vehicle
US10500906B2 (en) 2015-06-11 2019-12-10 Bentley Motors Limited Method of estimating load on a vehicle
US10953706B2 (en) 2015-12-29 2021-03-23 Bridgestone Americas Tire Operations, Llc Air storage system for rapid tire inflation
US10953707B2 (en) 2015-12-29 2021-03-23 Bridgestone Americas Tire Operations, Llc Air distribution system for rapid tire inflation
US11021023B2 (en) 2015-12-29 2021-06-01 Bridgestone Americas Tire Operations, Llc Rapid tire inflation system with air compressor
DE102016000724A1 (en) * 2016-01-23 2017-07-27 Audi Ag Gas pressure regulating device for the interior of a tire mounted on a rim
US20220234399A1 (en) * 2021-01-22 2022-07-28 John Henecke Tire pressure regulation system and method for using same

Also Published As

Publication number Publication date
GB9613945D0 (en) 1996-09-04
AU3354097A (en) 1998-02-02

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