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401 results about "Flat tire" patented technology

A flat tire (British English: flat tyre) is a deflated pneumatic tire, which can cause the rim of the wheel to ride on the tire tread or the ground potentially resulting in loss of control of the vehicle or irreparable damage to the tire. The most common cause of a flat tire is puncturing of the tire by a sharp object, such as a nail, letting air escape. Depending on the size of the puncture, the tire may deflate slowly or rapidly.

Tension-based non-pneumatic tire

ActiveUS20090283185A1Eliminating flat tireExtend tire lifeNon-inflatable tyresHigh resiliency wheelsEngineeringMechanical engineering
A non-pneumatic tire for supporting a load by working in tension comprising a generally annular inner surface, a generally annular outer ring, and an interconnected web having a plurality of web elements and comprising a plurality of generally polygonal openings. Web elements are sized, oriented and comprised of a material that facilitates buckling when subjected to a compressive load. By buckling, those elements in a deformed portion of the tire between a hub and a footprint region where the tire contacts a surface may assume a significantly reduced portion of the load, if any. This causes web elements in other portions of the interconnected web to operate in tension to support the load. Since the tire is non-pneumatic, it may be easier to maintain and may have a longer life than standard pneumatic tires since it eliminates the possibility of blowouts, flat tires, or tires operating with low air pressure. By virtue of the portion of the tire in the footprint region not bearing a significant portion of the load, non-pneumatic tire may also exhibit a more comfortable ride subject to less noise and vibration and improved handling capabilities.
Owner:BRIDGESTONE AMERICAS TIRE OPERATIONS LLC

Intelligent Tire Inflation and Deflation System Apparatus

An intelligent tire pressure management system capable of real-time tire pressure monitoring, vehicle load detection, and automatic tire inflation and deflation for maintaining optimal tire pressure in a commercial vehicle. Additional functions include counting tire rotations for calculating and recording distance travelled for each tire, and detecting wheel sliding due to locked-up tires. The system includes a chassis-mounted control box connecting to the vehicle air supply, a hubcap-mounted dual wheel valve apparatus integrated with a rotary union assembly that connects through the vehicle hollowed axles to the air tubes from the control box. The inflation / deflation supporting dual wheel valve apparatus has an embedded electronic unit that monitors individual tire pressure and temperature in real time, and communicates with the control box over the power line. Furthermore a load sensor integrated with the control box provides the system with the current vehicle load information. With readily available real time tire pressure data and current vehicle load information, this system can intelligently adjusts tire pressure to the desired level when necessary and, as a result, prolongs tire life, improves fuel economy, reduces the vehicle maintenance costs, and promptly alerts the driver of low, leaky or flat tire conditions for enabling the driver to take immediate corrective actions.
Owner:ZHOU JOE HUAYUE +1

Modular tire

A device for serving as a wheel for motor vehicles, where the wheel has its tire tread replaceable when it is worn out via unique rims and molded tire features. An alternate internal structure prevents the tire from “going flat” or “blowing out” when it is punctured or cut. In one variation the tire can be used with existing rims and can be retro-fitted into existing tire by mating the tires with this invention's “Non-Flat Tire” internal element and special rim. A variation of the “Non-Flat Tiresystem uses spring-like materials for its tire core that is shaped similar to a tire's inner tube, and functions like an “air-filled” tire, but the absence of the use of air in this unique configuration gives it the “Flat Tire Prevention” effect.
Owner:HEARD NATHANIEL

Flat tire sealant storage container and flat tire repair device

A flat tire sealant storage container is provided for a flat tire repair device in a formed in a simple configuration which enables the container to be stably secured. The flat tire sealant storage container includes an air inflow pipe for injecting compressed air under pressure into the container filled with a flat tire sealant and a sealant outlet discharge pipe for discharging the flat tire sealant under pressure to the outside of the container. The flat tire sealant storage container further includes an attachable and detachable fixing device formed on the outer surface of the container. When the container is secured to an external object by the fixing device, the inlet of the sealant outlet discharge pipe is positioned at the inner lower part of the container.
Owner:THE YOKOHAMA RUBBER CO LTD

Vehicle control method and system and vehicle

The invention provides a vehicle control method and a system and a vehicle. The control method comprises the following steps: when a vehicle has a flat tire, an electric assistance steering system, an engine control module and a vehicle body electronic stabilizing system are started to automatically control the vehicle; the electric assistance steering system controls a rotating angle of a steering wheel according to a predicted driving trajectory before tire burst, so that the vehicle is maintained on the predicted driving trajectory before tire burst; the engine control module limits an output torque of an engine according to a preset safety torque threshold; and the vehicle body electronic stabilizing system distributes the braking force applied to each wheel according to a target punctured tire to control stable braking of the vehicle. The method can automatically control the vehicle to keep reasonable driving trajectory after tire burst, and stably reduces the speed to improve the safety and the reliability of the vehicle when the vehicle has a flat tire.
Owner:GREAT WALL MOTOR CO LTD

Flat tire pressure monitoring module

InactiveCN101791932ASame power saving effectQuick launchTyre measurementsNetwork packetInformation data
The invention provides a flat tire pressure monitoring module, which is characterized by changing sampling frequency and sampling content of tire pressure according to automobile speed and changing transmission intervals of sampling information data packets according to a set threshold Py of dangerous tire pressure.
Owner:傅黎明

Pneumatic radial tire for passenger vehicles

A run-flat tire of the present invention is a pneumatic radial tire for passenger vehicles which has a carcass composed of plies of radially arranged cords toroidally extending between a pair of bead portions, and the a W / L ratio of the section width W to the outer diameter L of the tire is 0.25 or less.
Owner:BRIDGESTONE CORP

Run flat pneumatic tire with shoulder cushion rubber layer loss tangent less than carcass coating rubber loss tangent

There is provided a pneumatic tire having an aspect ratio of not less than 60 and considerably improving run flat durability as compared with the conventional type of the run flat tire, wherein at least one cushion rubber layer having a loss tangent lower than a loss tangent (tan delta) of a coating rubber for cords of a carcass ply is arranged between an end portion of a belt and a reinforcing rubber layer in a shoulder region and between mutually adjacent tire constitutional members. And also, when the carcass is comprised of plural plies, at least one ply is separated off in a zone beneath the belt, whereby the ride comfort against vibrations can be more improved.
Owner:BRIDGESTONE CORP

Aircraft dolly

A dolly for placement beneath a landing gear of an aircraft that enables transport of the aircraft without rolling the tire of the aircraft. The dolly includes a platform for a tire to rest on and a channel for positioning the tire. The dolly includes a winch for translating the dolly and aircraft tire relative to each other such that the landing gear is brought to rest on the platform, and one or more stops for securing the aircraft landing gear with respect to the dolly. Once positioned, the dolly can be used while transporting the aircraft, either by hand pushing, a hand towbar, a motorized tug with a towbar, or other mode. The dolly is useful for moving aircraft in tight spaces and is also useful for transporting aircraft with damaged landing gear or flat tires.
Owner:WEST METRO AVIATION

Spare tire assembly

A wheel on a vehicle having a flat tire may be protected by attaching a first semi-cylindrical shell having a first planar end to the wheel, and attaching a second semi-cylindrical shell to the first semi-cylindrical shell. The first semi-cylindrical shell and the second semi-cylindrical shell are secured together so as to form a cylindrical shell of diameter having a cylindrical wall which covers a tread surface of the flat tire. The first semi-cylindrical shell is attached to the wheel to cover a first portion of a tread surface of the flat tire; and, after attaching the first semi-cylindrical shell, the wheel is rotated. The first portion of the tread surface does not contact a ground surface prior to the rotation step, but does contact a ground surface through the first semi-cylindrical shell after the rotation step. A connector for connecting the semi-cylindrical shells to the wheel is also disclosed.
Owner:THOMPKINS TOREK

Run flat tire

Provided is a run-flat tire in which a higher compatibility between the riding comfort and the run-flat travel durability during normal travelling can be attained.Provided is a run-flat tire comprising a bead portion 1, a side wall portion 2, a tread portion 3, a carcass 4 composed of one or more carcass plies extending toroidally between the pair of bead portions to reinforce these portions, and a side reinforcing rubber layer 5 having a crescent cross-sectional shape arranged on the inside of the carcass at the side wall portion.The carcass ply cord is a hybrid cord formed by twisting a filament composed of cellulose fibers and a filament composed of nylon, the thermal shrinkage stress (cN / dtex) of the hybrid cord at 177° C. after an adhesive treatment is not less than 0.20 cN / dtex, and the thermal shrinkage stress (cN / dtex) of the hybrid cord at 177° C. drawn from a tire product is not less than 0.10 cN / dtex.
Owner:BRIDGESTONE CORP

Self-supporting pneumatic tire

A self-supporting pneumatic tire is molded in such a manner that ride comfort is improved, durability is increased, and a greater run-flat capability can be achieved. The self-supporting run-flat tire is molded such that the molded bead base width is equal or less than the rim width of the intended rim upon which the tire is to be mounted. By molding the tire with a bead width less than or equal to the rim width, the sidewall inserts are not subjected to additional stress during and after inflation of the tire and the strain energy is more evenly distributed through the sidewall pillar construction.
Owner:THE GOODYEAR TIRE & RUBBER CO

Intelligent tire inflation and deflation system apparatus

An intelligent tire pressure management system capable of real-time tire pressure monitoring, vehicle load detection, and automatic tire inflation and deflation for maintaining optimal tire pressure in a commercial vehicle. Additional functions include counting tire rotations for calculating and recording distance travelled for each tire, and detecting wheel sliding due to locked-up tires. The system includes a chassis-mounted control box connecting to the vehicle air supply, a hubcap-mounted dual wheel valve apparatus integrated with a rotary union assembly that connects through the vehicle hollowed axles to the air tubes from the control box. The inflation / deflation supporting dual wheel valve apparatus has an embedded electronic unit that monitors individual tire pressure and temperature in real time, and communicates with the control box over the power line. Furthermore a load sensor integrated with the control box provides the system with the current vehicle load information. With readily available real time tire pressure data and current vehicle load information, this system can intelligently adjusts tire pressure to the desired level when necessary and, as a result, prolongs tire life, improves fuel economy, reduces the vehicle maintenance costs, and promptly alerts the driver of low, leaky or flat tire conditions for enabling the driver to take immediate corrective actions.
Owner:ZHOU JOE HUAYUE +1

Safe and fuel-efficient automatic pressure-regulating wheel

ActiveCN103303060AEasy to seal installationEasy to repair and replaceHubsEngineeringAtmospheric pressure
A safe and fuel-efficient automatic pressure-regulating wheel is characterized in that the safe and fuel-efficient automatic pressure-regulating wheel comprises a sealing mechanism, a wheel mechanism and a pressure-regulating mechanism; the sealing mechanism is provided with a seal and a sealing ring; the wheel mechanism comprises a main wheel and an auxiliary wheel, wherein the main wheel is provided with a rim supporting ring while the auxiliary wheel is provided with an auxiliary rim supporting ring; and the pressure-regulating mechanism is provided with a bi-metal drum inside which a surge chamber is disposed, and a plenum chamber is arranged outside the bi-metal drum. The safe and fuel-efficient automatic pressure-regulating wheel has the advantages that with the functional material bi-metal drum as the tire pressure-regulating device, an air chamber of the tire is divided into the plenum chamber and the surge chamber, and when the temperature of the tire rises, an active layer on the inner wall of the bi-metal drum swells, and the drum waist of the bi-metal drum depresses toward the surge chamber along with the active layer, so that the volume of the plenum chamber of the tire increases, and tire pressure drops, and when the temperature of the tire drops, the active layer of the bi-metal drum shrinks, the drum waist of the bi-metal drum returns the plenum chamber, and the pressure in the plenum chamber recovers, so that the purposes of automatically regulating pressure, preventing a flat tire and driving with fuel-efficient effect are realized.
Owner:海安冠达新材料科技有限公司

Monitoring system for air pressure of automobile tire and working method thereof

The invention belongs to the field of automobile safety control, and particularly relates to the field of control and detection for the air pressure of an automobile tire. A monitoring system for the air pressure of the automobile tire comprises a controller, a low-frequency trigger and a tire-pressure sensor, wherein the low-frequency trigger and the tire-pressure sensor are connected with the controller; an LIN bus is adopted for transmitting signals between the controller and the low-frequency trigger; a wireless mode is adopted for transmitting the signals between the low-frequency trigger and the tire-pressure sensor; a wireless mode is adopted for transmitting the signals between the tire-pressure sensor and the controller. The monitoring system has the advantages that a driver can know information such as air pressure and temperature of the vehicle tires in real time, and when the forewarning states of flat tires such as air deficiency, air leakage or overhigh tire temperature occur, the tires emit light or sound to give an alarm for reminding, so that the driver can adopt preventive measures such as speed reduction, stoppage and air supplement actively to prevent accidents from occuring.
Owner:HEFEI SOFTEC AUTO ELECTRONICS

Run-flat tire

Provided is a run-flat tire that achieves high levels of both run-flat durability and ride comfort, and minimizes weight increase. In a sidewall-reinforced run-flat tire, the minimum thickness section being positioned between the belt layer end section and the tire cross-sectional height (SH) 70% position, the relationship between the thickness (Gmin) of the minimum-thickness section and the thickness (Gmax) of the maximum thickness section (17) is defined as 0.5 × Gmax ≤ Gmin ≤ 0.8 × Gmax; the relationship between the length (Lmin) of the thin region and the tire cross-sectional height (SH) is defined as 0.18 × SH ≤ Lmin ≤ 0.26 × SH; the relationship between the weight (Wr) of the sidewall-reinforcement layer, the tire total weight (Wt), and the tire oblateness (R) is defined as 0.08 × Wt × (1 - 0.2 × (1 - R / 50)) ≤ Wr ≤ 0.18 × Wt × (1 - 0.2 × (1 - R / 50)); the relationship between the thickness (Ga) at the rim-check line of the outer-side rubber portion outward of the carcass layer, and the maximum thickness (Gb) thereof, is defined as 0.8 × Gb ≤ Ga ≤ 1.0 × Gb; and the relationship between the thickness (Gc) at the rim-check line of the inner-side rubber portion inward of the carcass layer and the thickness (Ga) is defined as 0.7 × Ga ≤ Gc ≤ 1.0 × Ga.
Owner:THE YOKOHAMA RUBBER CO LTD

Vehicle with integral tire jacks

The vehicle with integral tire jacks is an automatic built-in system for lifting a vehicle in the event of a flat tire when the tire requires replacement. The system includes four jacks installed under the vehicle near each wheel. An air compressor activated and controlled by an internal control panel will provide pressure to the jacks, the control panel being provided with knobs and buttons enabling the control of a desired jack.
Owner:KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inner supporting body for run-flat tire

The invention discloses an inner supporting body for a run-flat tire, which is characterized in that: the inner supporting body is made of a magnesium alloy serving as a raw material, and adopts a two-block split structure; the split parts comprise a main body and a joint respectively; and the joints between the split parts are connected by a connection piece. The inner supporting body has the advantages of high rigidity, good heat stability and light weight, and the inner supporting body adopts the magnesium alloy to improve the radiating condition fundamentally, prevent rubber and engineering plastics from softening due to quick and massive deformation, eliminate the ,thermal explosion, phenomenon in the process of using the inner supporting body, improve the safe driving distance after a vehicle has a flat tire, and prolong the service life.
Owner:NO 52 INST OF CHINA NORTH IND GRP CORP

Rubber composition for tire sidewall part of run-flat tire

The invention relates to a rubber composition for a tire sidewall part of a run-flat tire. Polybutadiene rubber of which the cis content is 35-40%, the trans content is 45-55% and vinyl content is 10-20%, and natural rubber are taken as primary materials and matched with various rubber ingredients to prepare the rubber composition in a common rubber molding process; the elasticity of the material achieves about 50%; the tensile strength achieves 18MPa; the hardness achieves about 74; the rubber composition can be used for a rubber sidewall support, and the anaerobic endurance can be improved.
Owner:BEIJING RES & DESIGN INST OF RUBBER IND

Run-Flat Tire

This invention relates to a tire having an improved durability in the run-flat running without damaging the ride comfort in the usual running, and more particularly to a run-flat tire comprising a sidewall portion provided with a side reinforcing rubber layer having a crescent shape at section wherein a cord layer including a polyketone fiber cord satisfying the following conditions of the following equations (I) and (II):σ≧−0.01×E+1.2   (I)σ≧0.02   (II)[wherein σ is a thermal shrinkage stress at 177° C. (cN / dtex) and E is an elastic modulus at 25° C. under a load of 49 N (cN / dtex)] is disposed in at least a part of a region A ranging from a belt end to a maximum width part of a tire side portion and a region B ranging from a neighborhood of a bead core to a bead filler.
Owner:BRIDGESTONE CORP

Flat tire emergency truck

A flat tire emergency truck is comprised of a steel cradle provided with a pair of rear wheels supported on a rear axle and a central swiveling front wheel. The cradle has a bottom wall and opposed spaced parallel side walls to receive a vehicle wheel therein. A pivotal rear ramp is secured to the rear axle and has a first inclined ramp section to permit the vehicle wheel to enter the cradle. The rear ramp also has a second ramp section which is actuable by the load of the vehicle wheel to cause the first plate section to pivot upward to an arresting position. The rear ramp is constructed such that when in the loading position, it causes the rear wheel to be wedged off the ground support surface. Arresting means is provided to prevent displacement to the truck when a vehicle wheel is driven in or out of the cradle over the pivotal rear ramp.
Owner:FLUSS MARTIN

Run-flat tire

The invention relates to the field of tires, in particular to a run-flat tire. The run-flat tire comprises a tire bead, wherein the tire bead is internally filled with triangular rubber; a bead ring is arranged at the bottom end of the triangular rubber; a tire body layer is arranged around the tire bead; the tire body layer is turned back from the inner side to the outer side of the tire; a belt beam layer is arranged on the outer side of the tire body layer in the radius direction and inside a tire tread part; a tire sidewall supporting rubber layer is arranged between the tire body layer at a tire sidewall and a lining layer; and a tire bead reinforcing layer is arranged on the side surface of the tire bead. Compared with the ordinary run-flat tire, the run-flat tire disclosed by the invention has the advantages as follows: the hardness of tire sidewall supporting rubber is relatively reduced, so that the driving comfort is optimized to a certain extent; under the condition of the same rigidity, the thickness of the tire sidewall supporting rubber is reduced, so that the weight reduction of the tire is facilitated; during to reinforcement of a reinforcing material on a seam allowance position, the flexible deformation of the seam allowance position is relatively small in a run-flat state, and in combination with the reduction in the thickness of the supporting rubber, heat generation at the tire sidewall is reduced and heat dissipation is facilitated, so that improvement on the durability of the tire is facilitated.
Owner:SAILUN GRP CO LTD
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