365results about "With multiple inflatable chambers" patented technology

A self-inflating tire assembly includes a tire having a tire cavity between first and second sidewalls that extend respectively from first and second tire core beads to a tire tread region. At least one of the sidewalls is provided with an air tube peristaltic pump assembly. An air tube has an internal tube air passageway and is positioned within a sidewall groove in contacting engagement with opposite groove surfaces surrounding the air tube. The sidewall groove operatively bends within a rolling tire footprint to compress the air tube from an expanded diameter to a flat diameter adjacent the rolling tire footprint. A core bead passageway extends within a core bead adjacent the one tire sidewall for operatively storing air evacuated from the air tube passageway. Conduits are provided to route air from the air tube to the core bead passageway and valve mechanisms are positioned within the core bead passageway to control the flow of air from the core bead passageway into the tire cavity.

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 Tire” system 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.

A wheel having a controlled pressure includes a rim associated with a tank adapted to be filled with a fluid to a first pressure; a tire mounted on the rim and having an inner volume inflated to an operating pressure at a reference temperature, the operating pressure being lower than the first pressure; and at least one valve assembly adapted to establish a communication between the tank, the inner volume of the tire and the external environment. The valve assembly includes a command valve, an exhaust valve and a compensation valve operatively associated with each other. The command valve controls communication between the tank and the inner volume of the tire. The exhaust valve is connected to the external environment, to the inner volume, to the command valve and to the compensation valve. The compensation valve is connected to the exhaust valve and the command valve. The command valve includes an inner chamber connected with the exhaust valve and the compensation valve in such a manner that the command valve is operated by the exhaust valve and the compensation valve through a pressure variation of the inner chamber in response to a variation of the inner pressure of the tire.

Provided is a pneumatic tire / rim assembly which is improved in the run-flat durability with the mass of the tire being reduced. In a pneumatic tire / rim assembly with a run-flat capability, an air bladder (2) made of a circular ring-shaped film body is inserted inside a pneumatic tire (1) mounted on a rim (R). At least part of the film body is formed of a sealing layer (3) made of a thermoplastic resin or a thermoplastic elastomer composition obtained by blending an elastomer in a thermoplastic resin.

A tire with reduced rolling noise includes a tire structure formed of at least one crown extended by two sidewalls and two beads. A base of each of the two beads is configured to be mounted onto a rim seat. The tire also includes a carcass-type reinforcing structure anchored into the two beads and an additional layer bonded to an inner wall of the tire structure. The additional layer is bonded to the tire structure at its edges and the rest of the additional layer is not bonded. The additional layer includes an inflation valve.

A tyre pressure automatic controlling device is provided, which comprises a high pressure gasbag, a high pressure valve and a low pressure valve. The invention is characterized in that: the high pressure gasbag is a hollow round ring shape, which is fixed at the tyre, the high pressure gasbag and the high pressure valve are communicated by a pipeline, the low pressure valve and the tyre air chamber are communicated by pipeline, the high pressure valve and the low pressure valve are communicated with an air inlet. If the air pressure in the high pressure gasbag and the tyre air chamber is too large, which will discharge from the air discharging holes of the two valves, the pressure in the high pressure gasbag is too small, the pressure indicating arm contracts to warn the driver to charge, when the pressure in the tyre is smaller, the air of the high pressure gasbag will pass through the high pressure valve, low pressure valve and supply air to the tyre, which makes the pressure at the fixed value. The invention can effectively prevent the traffic accident caused by too large or too small tyre pressure, which can prolong the service life of the tyre and save burning oil consumption.

A system for dissipating sound shock waves within a vehicle tire includes a wheel upon which a tire is mounted to create an internal air chamber defined by the wheel and the tire. A flow-resistant barrier is coupled to the wheel or the tire and defines an air cavity within the internal air chamber. The barrier comprises a material that provides an acoustical resistance to sound shock waves passing therethrough. The air cavity defined by the barrier has a volume such that air within the cavity offers relatively small impedance to the passage of shock waves through the barrier and into the air cavity. The barrier also can produce frictional heat when displaced by a shock wave, thereby converting energy of the shock wave to heat to reduce noise associated therewith.

A toric membrane of reinforced rubber, used as a support for the tread of a tubeless tire and forming with the tire P and its mounting rim a rolling assembly, characterized in that, when inflated to a pressure p0 greater than the pressure p1 of the cavity of the tire, it has in the inflated state a crown radius RM less than the loaded radius RE of the tire when used at its recommended pressure, the membrane being reinforced in its crown by a crown reinforcement and a hooping reinforcement composed of circumferentially oriented cords or cables, and in its sidewalls by at least one reinforcement ply, wound around an annular reinforcement element having a breaking load slightly greater than that of the hooping reinforcement.

Disclosed is a run-flat tire and condition sensing assembly for vehicle tires. The assembly comprises plurality of rounded, support objects, wherein each object comprises an interior, an interior surface, and an outer shell. There is also at least one rounded, sensor object comprising an interior, an interior surface, and an outer shell. A pressure sensor, which detects pressure and transmits a corresponding signal, is situated within the sensor object. A net houses the plurality of rounded, support and sensor objects. The interiors of the support objects can be filled with pressurized helium gas, an elastic material or contain a support structure. Accordingly, during deflation of the tire, the sensor alerts the driver of the deflation while the plurality of support objects prevents radical deformation of the tire and allows the driver to operate the vehicle to safety.

A low-section tire includes an air tube including an internal wall and two air tube sidewalls. The internal wall comprises a greater rigidity than the tube sidewalls so that, when a carcass and the tube are mounted on a rim, and during inflation, the tube sidewalls contact the carcass sidewalls no later than the internal wall contacts a crown portion of the carcass. A process for manufacturing the air tube includes moulding two tube sidewalls separated from each other, moulding a central core, arranging the tube sidewalls and central core in a single vulcanization mould, closing the vulcanization mould to form the tube, feeding pressurized fluid into at least two distinct circumferential portions of the tube, and vulcanizing the tube to join the central core and tube sidewalls. A mould for manufacturing the an air tube includes two axially-external cheeks, two axially-intermediate male dies, and two axially-inner spacers.

The invention relates to a multiple son-tire self-complementing explosion proof tire which consists of vehicle tires, airplane tires and jinrick-shaw tires. The explosion proof tire comprises a hub and an outer cover and an inner cover in the outer cover is composed of two or more son-tires. The son-tires are filled with gas, and no valve is arranged and the son-tires are of a siphon clip wedge shape. When the son-tires are of a syphon clip wedge shape, a wedge shape parcel is used for making up wedge shape space generated by the syphon and the hub is provided with a standby inner cover and a valve.

A system for allowing a pneumatic tire supported on a wheel rim of a vehicle to continue in operation after rupture of the tire. The system includes an air bag container which divides the interior tire volume into a radial outer chamber providing normal pressure for inflation of the tire and a radial interior chamber, within the air bag, which is inflated to a substantially higher pressure. The container is intended to rupture when the tire is deflated by a puncture or the like allowing the higher pressure air bag to escape from its container and fill the entire tire volume at a normal operating pressure.

A rubber composition is provided with a large friction force even on a body having, for example, an ice face of a low friction coefficient. The composition is constituted by a foamed rubber having a rationalized foaming state. The composition is applied to an upper-layer rubber part of a tread rubber constituting at least a ground contact face to enhance a gripping force on a frozen road surface or a snow covered road surface. The foamed rubber has continuous cells 6 each continuously extending substantially along a particular direction 4 and sealed with a resin protection membrane 5. Also, a method is provided for producing such a tire.

The invention concerns a tire pressure adjusting system for setting the pressure in a tire mounted on a vehicle. A pressure source assigned to the vehicle and at least one connecting line are provided, with which the pressure source can be connected to a tire. The tire can be mounted on a rim. Within the space formed between the tire and the rim, a dividing means is provided, with which the space can be divided into two chambers. In order to reduce the time period for a change in the tire pressure, a means of limitation be provided, with which the volume expansion of a chamber can be limited to a maximum volume value that can be set, and that to change the pressure of the tire only the pressure in one of the two chambers needs to be changed.

The invention is directed to a high-speed, puncture proof tire including a tire casing having a tread portion and a pair of side wall portions and a plurality of small diameter pressurized tubes disposed within the tire casing. Each pressurized tube has an elongate body fabricated from film material that is sealed crosswise along the length of the body to define at least two compartments that contain gas under pressure. The tubes can be oriented radially or circumferentially within the annular space of the tire casing. In another embodiment of the tire, at least one panel of film material resistant to shear forces is disposed within the annular space of the tire casing. The panel is sealed lengthwise thereof to define a plurality of small diameter pressurized tubes. Each pressurized tube is sealed crosswise along the length of the tube to define at least two compartments that contain gas under pressure.

A pneumatic tire assembly comprising a rim, a pneumatic tire that has a double structure including an outer tire and an inner tire inserted thereinto, and is assembled with the rim, and air chambers formed inside and outside the inner tire, wherein the rim includes a pair of bead seats on which bead portions of the outer tire and the inner tire are placed, a first rim flange protruding outward in a diameter direction of the tire from a side end of the bead seat, a second rim flange disposed inside the first rim flange in a rim width direction and formed on at least one of the bead seats while protruding therefrom, and an air valve provided to the second rim flange, the outer tire is held by the first rim flange and the second rim flange with the bead portion thereof being nipped therebetween, the inner tire is mounted with the bead portion thereof being in internal contact with the second rim flange, and in an outer wall surface area of the inner tire extending outward from a position of a maximum height of the second rim flange in a diameter direction of the tire, a groove portion for feeding air supplied via the air valve into the air chamber formed outside the inner tire is formed into a concave shape.

The present device is an integrated automotive wheel for electric vehicles which substantially reduces energy loss due to tire flex and energy loss from a conventional drive train. The wheel includes an axle, a hub, two composite sidewalls, a low pressure inner chamber with shock absorbing hub protector, and at least one outer high pressure pneumatic chamber with tread. The hub can contain an electric hub motor which rotates the wheel, propelling the vehicle. The sidewalls include at least one pressurized chamber which position the outer tread ring and enable the wheel to simulate an energy efficient high pressure pneumatic wheel, experiencing little deformation when under smooth road conditions. When road conditions are rough, the sidewalls can temporarily buckle in response to the increased road forces, simulating a low pressure conventional tire having ample space for deformation, with suspension and shock absorption capability built in. The sidewalls and outer ring chamber can be filled with high pressure closed cell foam to prevent flats.

An improved tire provides an air-flow restrictor that may be installed inside a tire. The air-flow restrictor may restrict or prevent the flow of air in the direction opposite to the direction of rotation of the tire. Also, a method for saving fuel by inserting or retrofitting tires with air movement restricting inserts.

The present invention addresses the problem of providing a novel tire / wheel assembly. The tire / wheel assembly has: a wheel coupled to a rotating shaft; an elastic tube arranged on the outside of the wheel in the radial direction and having air filled therein; a rigid protection ring arranged on the outside of the tube in the radial direction, separated from the wheel; and a tread ring arranged on the outside of the protection ring in the radial direction and such that the inner circumferential surface thereof is in contact with the outer circumferential surface of the protection ring.

The invention discloses a multi-air-chamber self-balancing flat and explosion preventing wheel assembly, which comprises a multi-air-chamber tyre, a multi-segment clamp rim and a multi-air-chamber air valve, wherein the multi-air-chamber tyre has a multi-air-chamber structure formed by isolating rings; the multi-segment clamp rim comprises an outer rim and an inner rim, the rims are connected into a whole through a screw to form a groove, each combination part forms a middle part flange, and independent air passages are hidden in the rims; the multi-air-chamber air valve comprises an outer valve and a plurality of inner valves, the outer valve and the inner valves are connected by pressing and sealing or closely connected through internal threads, and the outer valve is sleeved with a compression nut; and the multi-air-chamber tyre, the multi-segment clamp rim and the multi-air-chamber air valve are installed in a matching mode. The multi-air-chamber tyre has convenient installation and good tightness; air-entrapping and air exhaustion of the multi-air-chamber tyre can be realized simultaneously; and the multi-air-chamber tyre can block and cut off communication among each air chamber to ensure the normal running of an automobile.

The invention provides an elastic unit combined tire, which consists of a rim, rubber air springs, metal shells and tread rubber, wherein a certain number of lug bosses are formed on the circumference of the rim; a rubber air spring is arranged on each lug boss; a metal shell is arranged on an upper end plate of each rubber air spring; the tread rubber covers the surface of each metal shell; tail ends of two adjacent metal shells are connected through a hinge; an elastic unit consists of one or a group of rubber air springs, the metal shells and the tread rubber covering the surface of the metal shells; and the whole tire consists of a certain number of elastic units and the rim. The combined tire can save massive equipment investment and reduce technical difficulties in processing; and during use, the elastic unit can be rapidly replaced, the service life is long, the safety is high, and the bearing capacity is adjustable.

A tube-type tire to be mounted on the rim of a (e.g., spoke-type) wheel such as that commonly used by a bicycle or a motorcycle, whereby the tube-type tire will operate without a conventional inner tube and as if it were tubeless. The tire includes a main tire section that is seated upon the generally flat shelf of the rim and a pneumatic sealing ring having an inner tube that is seated upon the beadwell of the rim. An air chamber of the inner tube of the sealing ring is inflated to a greater pressure than an air chamber of the main tire section so as to isolate the air chamber of the main tire section from the rim and force the main tire section against the vertical lip of the rim. The sealing ring also has an outer inflatable liner that is located in surrounding engagement with the inner tube to separate the inner tube from the air chamber of the main tire section. The outer liner has one or more O-ring seals projecting outwardly from the side walls thereof and a centering lip projecting downwardly from the side walls. The O-ring seals are moved into sealing engagement with the inside of the main tire section when the air chamber of the inner tube is inflated and the liner is expanded. The centering lips of the liner are seated upon the beadwell of the rim to cause the liner to be automatically centered over the inner tube.

A system for dissipating sound shock waves within a vehicle tire includes a wheel upon which a tire is mounted to create an internal air chamber defined by the wheel and the tire. A flow-resistant barrier is coupled to the wheel or the tire and defines an air cavity within the internal air chamber. A porous spacer can support the barrier with respect to the tire and also can provide a flexible energy damper. The barrier comprises a material that provides an acoustical resistance to sound shock waves passing therethrough. The air cavity defined by the barrier has a volume such that air within the cavity offers relatively small impedance to the passage of shock waves through the barrier and into the air cavity. The barrier also can produce frictional heat when displaced by a shock wave, thereby converting energy of the shock wave to heat to reduce noise associated therevvith.

A pneumatic tire, comprising adhesive sealant applied onto the inner surface thereof, wherein an air barrier membrane is disposed on the inner surface of the tire at least at a tread part, a space part is formed between the air barrier membrane and the inner surface of the tire, and the adhesive sealant is stacked on the space part side surface of the air barrier membrane, whereby an increase in weight can be minimized and a workability in handling the tire can be increased.

The invention relates to a tyre including a casing at least partially made of gum, defining an inner annular volume and having a top (1) defining a tread and two flanges (2) connected to said top (1), as well as a carrier structure (4). According to the invention, the carrier structure (4) is pressurised and divides the annular volume of the tyre into a plurality of compartments (400) or cells, and the flanges (2) are connected to or integrated in the carrier structure (4).