Tire Life Extension Methods

A tire with improved adhesion durability between the steel cord and rubber coating for better fuel efficiency and longer tire life. The tire uses steel cords for belt reinforcement that are not twisted and have a specific maximum gap between filaments. The steel cords are coated with rubber and have a ternary metal coating of copper, zinc, and iron. This coating composition and cord configuration provide better adhesion between the steel and rubber compared to conventional cords. The reduced gap between filaments prevents belt edge separation. The specific ternary metal coating improves adhesion. This allows thinner rubber coatings for fuel efficiency while maintaining adhesion.

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Composition for rubber products like tires that contains an elastomeric polymer material and an oxidized wet beaded carbon black. The oxidized wet beaded carbon black is made by wet beading carbon black and then oxidizing it. This process allows the carbon black to be handled and transported as beads instead of fine powder. The composition improves tire properties like rolling resistance, durability, and hysteresis compared to conventional rubber compounds. The oxidized wet beaded carbon black is added to the elastomeric polymer material to make the rubber composition.

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Heavy duty construction vehicle tire with reduced crown temperature for longer tire life. The tire has cavities extending into the tread from the surface or edge that contain a low-hysteresis elastomer layer with silica filler. The depth of the cavities varies linearly with the silica content of the adjacent low-hysteresis layer. This allows heat exchange between the cavities and external environment to dissipate internal tire heat.

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Non-pneumatic tire design with improved weight bearing and longevity characteristics compared to conventional non-pneumatic tires. The tire has an interconnected web of collapsible open cells between an inner ring and outer ring. The cells are formed by Y-shaped spokes that radially connect the rings. The spokes have lower legs attached to the inner ring and upper legs joined to the outer ring. The spokes are arranged in a revolved pattern around the tire axis. This optimized support web distributes weight and collapses for flexibility, reducing stress compared to separate spokes.

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Building tires for vehicle wheels with improved properties by using a specialized process and apparatus. The process involves spiraling a continuous elongated element made of an elastomeric material to form the sidewalls and tread of the tire. Instead of inserting additional elastomeric materials to provide specific properties, the process allows adding multiple materials directly into the elongated element during spiraling. This allows controlled distribution of the additional materials throughout the sidewall and tread components. This prevents deformation and displacement issues during molding that can compromise the added properties.

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A tire balancing system that uses a mixture of non-absorbent beads and moisture absorbing beads to improve tire longevity and balance. The mixture prevents moisture buildup inside the tire that can cause corrosion, pressure fluctuations, and clogged valves. The non-absorbent beads provide balancing while the moisture absorbing beads prevent excess moisture from clumping the balancing beads.

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Pneumatic tire design that improves steering stability, durability, and ease of mounting/demounting without compromising one another. The tire has a turned-up ply with turned-up portions around the bead cores. Inner and outer apex rubbers extend between the main body and turned-up portions. The inner apex rubber height is 18-30 mm. The tire has specific buttress, maximum width, and bead thickness measurements satisfying expressions (1)-(4). This configuration improves steering stability, durability, and allows easier mounting/demounting compared to traditional turned-up ply designs.

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In the context of intensification open-pit mining and growth quarry machinery fleet, issues efficient use maintenance oversized ultra-large tires are becoming particularly relevant. This article is devoted to analysis causes tire wear dump trucks consideration hot vulcanization method as main their restoration. It was established that greatest risk damage falls on sides tread tire, nature defects diverse often combined. The method, in strict accordance with technological regulations, ensures restoration mechanical properties a significant increase service life. stages considered, including preparation, cleaning, application materials, heat treatment, cosmetic noted process labor-intensive requires further optimization, automation improvement solutions. addition, order resistance wheels, it proposed consider possibility implementing design changes them themselves. obtained results can be useful development regulations equipment repair systems.

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Rapid urbanization has intensified pressure on transport infrastructures, with urban bus networks playing a crucial role in promoting sustainable mobility. However, managing operational costs while minimizing environmental impacts remains major challenge. This study investigates the innovative Tire-as-a-Service (TaaS) model applied to fleets, incorporating regrooving and retreading techniques improve tire durability efficiency. The TaaS shifts focus from purchasing tires service-based approach, where users pay according usage (i.e., kilometers driven), proactive maintenance waste reduction. Solving this problem is based discrete-event simulation algorithm optimize inspection schedules and, consequently, minimize total guaranteeing minimum level of service reducing impact. A robustness analysis will validate developed, thus contributing more system.

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Motorcycle tire with tread design to reduce wear step formation. The tire has a curved tread profile. The land ratio, or width-to-height ratio, of each zone between the tread edges and ground contacting surface is specified. This prevents excessive wear step formation at the edges of the tread by optimizing the wear distribution. The curved tread shape and controlled land ratios suppress the step wear that can occur in the center of the tread due to its shape.

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Tyres for vehicles with improved grip, wear resistance, and low weight. The tyres contain a rubber matrix with functionalized carbon nanoparticles like graphene and carbon nanotubes. The functionalization improves dispersion of the carbon nanoparticles in the rubber. This provides better grip, structural and chemical properties, and abrasion resistance compared to unfunctionalized carbon nanoparticles. The functionalization involves treating the carbon nanoparticles with chemicals like nitric acid to modify their surface.

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Automatically determining tire wear in real-time during vehicle operation without visual inspection or manual measurement. The method involves using sensors to continuously monitor tire parameters like rolling radius and stiffness. A machine learning model normalizes the effects of these parameters on rolling radius and stiffness. Changes in normalized rolling radius and stiffness over time indicate tire wear. The model can determine average wear and irregular wear patterns.

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Tire tread for heavy construction vehicles that improves grip, especially on muddy terrain, while also increasing wear resistance. The tread has blocks with concave contact faces and a distribution of radial heights between the inner and outer portions that allows better penetration and anchoring. The concave contact faces have at least three pairs of sides forming angles greater than 180 degrees. This shape provides better grip and traction compared to convex contact faces. The radial height of the outer penetration portion is 0.1-0.6 of the total block height.

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Pneumatic tire with improved grip and durability at high speeds. The tire has a tread with at least two rubber compounds with different thermal conductivities in the ground contacting surface. This allows efficient heat dissipation during high-speed running to prevent excessive heat buildup. The tire also has specific dimensions and groove geometry to further enhance grip and durability.

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Polydiene rubbers with improved properties for tire applications, made by polymerizing diene monomers with functionalized comonomers containing alkoxy silyl groups. The functionalized comonomers have repeating units derived from the functionalizing comonomer. The functionalized rubber polymers have better interactions with fillers and improved tire properties compared to non-functionalized diene polymers.

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A compound called 3,14,14-trimethyl-2,3,4,4a,5,12,14,14a-octahydroquinolino[2,3-b]acridin-7 (1H)-one that can be used as an aging stabilizer in rubber products like tires. The compound has a lower hazard potential compared to traditional aging stabilizers like p-phenylenediamines. It can be used in rubber mixtures at low amounts to provide sufficient aging protection without blooming. The compound can be synthesized by reacting citronellal, acetone, and aniline derivatives.

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Rubber composition for pneumatic tires with improved durability without sacrificing elongation. The composition contains a diene-based rubber, carbon black, and phosphoric acid-modified cellulose nanofiber. Adding the modified cellulose nanofiber to the rubber composition enhances rubber strength without reducing elongation compared to using just carbon black. This provides better tire durability without compromising tire flexibility.

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Rubber composition for pneumatic tires that improves durability without sacrificing elongation. The composition contains a diene-based rubber, modified diene-based rubber, carbon black, and phosphoric acid-modified cellulose nanofiber. The modified diene-based rubber improves rubber strength, while the nanofiber further enhances strength. The composition allows reducing filler like silica to improve elongation. The composition can be used in vulcanized rubber parts of tires.

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Pneumatic vehicle tire with improved cooling and stone trapping resistance in the shoulder region. The tire has sidewall and tread with a shoulder-side profile rib containing depressions. The depression openings are elongated rectangular or trapezoidal, with angled end flanks and a base that transitions from inner base to outer base to a convex middle base. The depression length is 30-50% of the rib width. This shape provides better cooling by maximizing surface area and stone trapping resistance by preventing stone retention. The zigzag groove shape and depression placement beside bend inner sides further improves rigidity and cooling.

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Oil-extended conjugated diene polymer for tire rubber with improved low-temperature properties and bloom resistance compared to conventional oil-extended polymers. The polymer is made by extending a conjugated diene polymer with an oil containing specific properties. The oil has a UV/RI detection area ratio of 10 or less and an extrapolated initial melting temperature of 23°C or less. This oil-extended polymer forms cross-linked rubber with enhanced low-temperature performance and reduced bloom when used in tire compounds.

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