Vehicle tyres and tyre inflation and tyre changing and connecting valves to inflatable elastic bodies in general and devices or arrangements related to tyres (B60C)

B60   Vehicles in general(31273)
B60C              Vehicle tyres (manufacture, repairing b29); tyre inflation; tyre changing; connecting valves to inflatable elastic bodies in general; devices or arrangements related to tyres (testing of tyres g01m0017020000)(2019)
Emulsion coagulant // 2615702
FIELD: chemistry.SUBSTANCE: emulsion coagulant contains: a component (A) having a particle size of from 35 to 100 microns and containing, at least, one type selected from the group consisting of aluminum oxide, magnesium oxide and silicon oxide; propylene glycol alginate; and a component (B) containing, at least, one type selected from the group consisting of calcium oxide, calcium chloride, calcium acetate and urea. Herewith the amount of the component (B) is of 3 to 30 wt % of the total amount of the component (A), propylene glycol alginate and the component (B).EFFECT: emulsion coagulant can be used for rapid material coagulation for sealing a puncture in the tire with extremely low ambient temperature.7 cl, 11 tbl

Tire with low metal content // 2615074
FIELD: transportation.SUBSTANCE: invention relates to design of wheel tires for vehicles. Tire includes a layer of frame and at least one ring structure connected to the frame layer. The tire additionally includes an area of metal-free ring breaker comprising the first metal-free layer of the breaker and the second metal-free layer of the breaker. The tire also comprises a metal-free screening layer of the breaker placed radially outside the first metal-free layer of the breaker and the second metal-free layer of the breaker. The tire also comprises a metal-free ring tread that contacts with a road, and a pair of sides connected to at least one ring structure and the metal-free ring tread.EFFECT: improved operating properties of a tire.20 cl, 8 dwg, 4 tbl
ethod for producing rubber mixture, rubber mixture and pneumatic tyre using it // 2614680
FIELD: chemistry.SUBSTANCE: invention relates to a process for obtaining a rubber mixture. The mixture consists of a rubber component (A), a filler comprising an inorganic filler, (B), a silane coupling agent (C) and at least one vulcanisation accelerator (D). Component (A) comprises at least one member of natural rubbers and synthetic diene rubbers. Vulcanisation accelerator (D) is selected from guanidines, sulfenamides, thiazoles, thiurams, dithiocarbamates, thioureas and xanthates. In the process the rubber mixture is kneaded in several stages. During the first kneading step (X) a part (A') of the rubber component (A), all or part of inorganic filler (B), all or a part of silane coupling agent (C) and all or part of a vulcanization accelerator (D) are added and kneaded. During or after the second kneading stage a residual part (Aʺ) of rubber component (A) is added and kneaded.EFFECT: invention provides a reduction in heat generation as a result of a further improvement in activity of glazing function of silane coupling agent.41 cl, 2 tbl, 22 ex

Pneumatic tire // 2614413
FIELD: machine building.SUBSTANCE: invention relates to a pneumatic tire. Pneumatic tire contains tread (1), having contact surface (5), which comes into interaction with road surface during tire rotation, and pair of side walls (3) forming tire side surfaces and passing from tread (1) to inside in radial direction. Each side wall (3) has external surface (7), passing from contact surface (5) edge to corresponding side wall (3) in direction along tire width, wherein polygonal blocks (11) are made on outer surface (7), limited by grooves (9). On each of polygonal blocks (11) external surface on each side wall (3) first auxiliary grooves (13) are made, passing in direction along tire width, so, that said first auxiliary grooves (13) both ends are opened to grooves (9), restricting polygonal blocks (11).EFFECT: technical result is creation of pneumatic tire with improved resistance to lateral slip on snowy and icy road surface.5 cl, 3 dwg, 1 tbl

Tire and method to make tire // 2614402
FIELD: transportation.SUBSTANCE: tire is made with a ring reinforcing layer formed by rubber strips wound along the spiral in the same direction from different places arranged in the direction along tire width. Rubber strips (12A and 12 B) are arranged with clearances on the part of the tire or along the entire tire in direction along width. Together with end sections of rubber strips, at least the middle end sections (12Bs and 12Ae), located on the side of the equatorial plane of the tire, are located in areas, where the middle end sections are fully covered with the units (2a) of the tread in the form of a rib in direction along tire width, and width of tread units in the form of a rib covered with the middle end sections is defined as W, and the width of rubber strips is defined as G (mm), at the same time the ratio G<W is met.EFFECT: reduced frequency of cracks in grooves in all tires, which contain a circular reinforcing later wound along spiral.7 cl, 2 dwg, 1 tbl

Thick protector for construction machinery // 2614401
FIELD: transport.SUBSTANCE: invention relates to automotive tire. Tread comprises blocks (3) in the central part and the boundary edges (2, 4). Every boundary edge (2, 4) has numerous deepenings (21, 41) forming saddles. Each saddle is limited by the walls oriented in the transverse direction over its entire height, and the wall, oriented in the circumferential direction. Each saddle (21, 41) has a geometry suitable for receiving at least the end part of the central zone with the backlash Ac (measured in the circumferential direction) and the transverse gap AT (as measured in the transverse or axial direction). These Ac and AT gaps are determined so as to ensure that under normal operating conditions of the tire provided with the noted tread, the end part (302, 304) of the block central zone will be at least partially in contact with at least one of the walls of each saddle (21, 41) oriented in the transverse direction, thereby preventing the contact of each of the blocks (3), the ends of which are locked in these recesses, with the adjacent blocks of the central row.EFFECT: invention provides an improved tire traction characteristics with the ground, as well as increase strength and the tire tread durability.7 cl, 4 dwg

Tread containing sculptural elements coated with impregnated fibers compound // 2614375
FIELD: transportation.SUBSTANCE: tread for a pneumatic tyre comprises a plurality of sculptural elements, including the lateral sides and the contact surface intended for performing the contact with the road during the movement of the pneumatic tyre provided with said tread. At least one edge forms the contact boundary of the contact surface with the road. A plurality of cutouts in the form of a track and / or a cut also is represented, wherein said cutouts are bounded by the lateral sides disposed opposite one another. Each sculpture element is formed by at least one first rubber mixture called basic mixture. In the sectional view of a plane normal to the rotation axis of said pneumatic tyre and intersecting at least one contact surface sculptured element, wherein one of the cutouts adjacent to said contact surface is coated, at least partially, with the coating layer. The coating layer comprises a plurality of woven or non-woven fibers that are long fibers with the length greater than 50 mm.EFFECT: improved characteristics of pneumatic tyres on wet surfaces.32 cl, 9 dwg, 3 tbl
Traction control // 2614128
FIELD: transportation.SUBSTANCE: traction control consists of strips that are made of durable rubber or frost-resistant polymer, reinforced with metal or plastic cord. The upper and lower strip surfaces are corrugated. Metal or plastic spikes are mounted in the lower part of strips. One of the edge portions of strips has an U-shaped recess.EFFECT: increased vehicle flotation at a road with sleet or snow coasting.
Tire // 2614121
FIELD: transportation.SUBSTANCE: tire comprises an inner shell that consists of a rubber mix. Rubber mix for the inner shell comprises a rubber component and additives, the dynamic modulus E* (MPa) of elasticity of which and tangent tanδ of the angle of losses, measured at temperature of 70°C, initial deformation of 10% and dynamic deformation 2%, meet the formulas below (1)-(3), air impermeability ratio is not more than 12.00⋅10-14 cm3⋅cm/cm2⋅s⋅Pa and tensile strength (TS) (MPa) and tensile elongation (TE) (%), according to measurements in accordance with JIS K6251, meet the formulas below (4) and (5): Formula (1): E*/tanδ>17; Formula (2): 2.5<E*<5; Formula (3): tanδ>0.15; Formula (4): TE>450; Formula (5): TS⋅TE>10,000.EFFECT: improved characteristics of driving stability, effective use of fuel and balance of physical properties, with preserved resistance of air permeability and durability.8 cl, 1 tbl
Rubber composition and tire // 2613969
FIELD: manufacturing technology.SUBSTANCE: invention relates to rubber composition containing rubber component and farnesene polymer. Composition contains rubber component selected from group consisting of synthetic rubber and natural rubber; farnesene polymer with average molecular weight from 25,000 to 500,000 in amount of 0.5–50 wt% per 100 weight parts of rubber component and soot, having average particles size from 5 to 100 nm, in amount of 20–100 wt% per 100 weight parts of rubber component.EFFECT: invention enables to improve composition processability and improve tire rolling resistance characteristic.10 cl, 7 tbl

Tire tread with material gripping (versions) // 2613120
FIELD: manufacturing technology.SUBSTANCE: invention relates, substantially, to tire tread. More specifically, object of present invention relates to tire or tire tread, containing element with material gripping. Tire has radial direction, axial direction, direction along circumference and tire grouser (220), wherein grouser (220) is limited by plurality of surfaces (230). Plurality of surfaces (230) comprises upper surface (232), which passes in axial direction and in direction along circumference, first side surface (233) and second side surface (234). First side surface (233) is oriented at first angle (φ) to upper surface (232), wherein first angle (φ) ranges from 100 to 150 degrees. First side surface (233) contains first side surface first cavity (242) and has height (H1) and width. First cavity (242) represents elongated rectangular slot forming first elongation axis. First cavity (242) has lateral cross section perpendicular to first elongation axis, which is, essentially, semicircular, semioval, semi-elliptical, parabolic or hyperbolic. First cavity (242) has length from 30 % to 120 %, inclusive, of first side surface (233) width. Second side surface (234) is oriented at second angle (ψ) to upper surface (232), wherein second angle varies from 100 to 150 degrees. Second side surface (234) contains second side surface (234) first cavity (252), and has height (H2) and width. Second side surface (234) first cavity (252) represents elongated rectangular slot, forming second elongation axis. First cavity (252) has lateral cross section perpendicular to second elongation axis, which is, essentially, semicircular, semioval, semi-elliptical, parabolic or hyperbolic. First cavity (252) has length from 30 % to 120 %, inclusive, of second side surface (234) width.EFFECT: creation of tire tread, which is made with possibility to grip significant amount of road bed material by tire tread.5 cl, 11 dwg

Radial tire for agricultural equipment // 2613098
FIELD: agriculture.SUBSTANCE: pneumatic tire is made with radial layer for agricultural equipment, has permissible load "IF" in compliance with standards of Association on tires and discs. Tire has two radial layers of housing, reinforced with organic cord, as well as two breakers reinforced with steel. Tread pattern is of ribbed type has multiple relatively wide parallel longitudinal ribs, separated with relatively narrow lengthwise grooves.EFFECT: high strength of tires for agricultural equipment.26 cl, 6 dwg, 2 tbl

Tire stud and studded tire // 2612278
FIELD: transportation.SUBSTANCE: stud has a stud body (1) with a symmetry axis (K) and includes a stud pin (2) parallel to the symmetry axis. Stud body includes an upper flange (3) and a bottom flange (5). The upper surface of the upper flange (3) is designed for placing in the tire tread zone when installing the stud in the studded tire mounting hole, the stud pin (2) is formed in the stud body (1) in such a manner that one end (4) of the stud pin (2) stands proud from the upper surface of the upper flange (3). The bottom flange (5), bottom surface of which is intended for placing the stud body (1) in the bottom zone of the tire tread mounting hole on the bottom flange (5) edge on the opposite sides with respect to the symmetry axis (K). On the edge of the upper flange (3) the holding surfaces (7) are made coaxially with the holding surfaces (6) on the bottom flange (5) edge on the body (1) symmetry axis (K). The holding surfaces (7, 6) of the upper flange (3) and the bottom flange (5) are curved.EFFECT: improved wear resistance characteristics and studs adhesion with the road surface at high studs fixing reliability in the tire tread.3 cl, 3 dwg
Sulphur cross-linkable gumming mixture // 2611881
FIELD: manufacturing technology.SUBSTANCE: invention relates to sulphur cross-linked gumming mixture for pneumatic tires reinforcing. Based on 100 weight parts of rubbers total amount in mixture gumming mixture contains from 70 to 100 weight parts of natural rubber, up to 30 wt%. of, at least, one polybutadiene, from 40 to 70 wt%. of, at least, one carbon soot and adhesive system. At that, carbon soot is nano-structured soot with rough surface.EFFECT: invention enables to reduce hysteresis, reduce temperature increase and increase resistance to strain propagation at optimum rigidity, which increases durability of tires.11 cl, 1 tbl
Rubber composition and tire // 2611511
FIELD: manufacturing technology.SUBSTANCE: invention relates to a rubber composition containing a rubber component and polyfarnesene. Composition contains a rubber component selected from synthetic and natural rubber, as well as a polymer of farnesene with average molecular weight not less than 2,000 and less than 25,000 in amount of 0.5–30 wt%. per 100 pts.wt of rubber component and soot with average particle size of 5 to 100 nm in an amount of 20 to 80 wt% per 100 pts.wt of rubber component.EFFECT: invention improves processability o composition and improves adhesion of tire with ice and dry road surface.10 cl, 7 tbl

Air tire with radial or cross-frame // 2611450
FIELD: transport.SUBSTANCE: invention relates to automotive industry. A pneumatic tire contains at least one bar-mat reinforcement, belt reinforcement with first and second edges, the tread. The said belt reinforcement contains the following separate elements: protector with a transverse half width L2, including a polymeric protector placed between two rubber sheath layers, at least a banding layer placed on the protector with the transverse half width L1 and including mutually parallel filament reinforcement elements, forming, at most, an angle eq. 7°, with respect to the circumferential direction of the air tire. The air tire contains at least one curb separating rubber layer (7) placed, at least, radially between the shroud layer (5) and the protector (6) and disposed at least on one transverse edge of the belt reinforcement. The noted curb separating rubber layer (7) has an overall length of between 10 to 40 mm and a thickness of 0.2 to 1.2 mm. The tire contains at least one protector, wherein at least one belt reinforcement edge (3) of L1, L2 half-width are different and have a difference (L1-L2), of from 5 to 10 mm.EFFECT: invention enhances higher the car tires strength.19 cl, 4 dwg, 3 tbl

Pneumatic tire // 2610737
FIELD: transportation.SUBSTANCE: longitudinal narrow grooves (16) are placed with density of at least 0.06 groove/mm and not more than 0.2 groove/mm in transverse direction of the tire. Narrow grooves (20) in the transverse direction stretch at the angle of at least -45° and not more than +45° in respect to the transverse direction of the tire. Longitudinal narrow grooves (16) have at least one bent section. Angle of bent section bending is at least 40° and not more than 160°.EFFECT: improved characteristics of braking and turning on ice.17 cl, 6 dwg, 1 tbl

Pneumatic tire // 2610736
FIELD: transportation.SUBSTANCE: longitudinal narrow grooves (18) are placed with density of placement in transverse direction of the tire from 0.06 groove/mm to 0.2 groove/mm. Narrow grooves (22) have at least one bent section in the transverse direction. Angle of bent section bending is at least 40° and not more than 160°.EFFECT: improved characteristics of braking on ice, snow and water drainage.11 cl, 5 dwg, 1 tbl

Wheel and assembled tire (versions) // 2610731
FIELD: manufacturing technology; motor vehicles industry.SUBSTANCE: invention relates to assembled wheel and tire, which contain airless tires, having some operational characteristics of pneumatic tires. Assembled wheel contains wheel and flexible airless tire. Rigid wheel comprises first rim part, axially connected to second rim part. First rim part contains first radially outer ring, first transversely flat outer surface, first radially flat inner surface, first inner edge, central disc, outer edge and central hub flange for connection of first rim part with hub. Central disc is axially shifted from first radially flat inner surface. Intermediate projection is extending from first inner edge to central disc outer edge. Central disc is made with possibility of introduction through central opening at connection of first radially flat inner surface to second flat inner surface, so that intermediate projection is adjacent to second flat inner surface second inner edge. Second rim part comprises second outer ring and second outer surface extending around wheel circumference, and second inner surface, having second inner edge. Airless flexible tire is mounted on wheel so, that tire interacts with external surfaces of wheel rim parts.EFFECT: enabling possibility of bending tire in response to pressure at interaction with ground, as a result of which penetration into soil and damage of soil is minimized.11 cl, 22 dwg

ethod of tractor machines drive axle with paired wheels losses reduction // 2610730
FIELD: machine building.SUBSTANCE: invention relates to car-and-tractor machine building. Method consists in change of kinematic mismatch between drive axles wheels by changing tires pressure. Change in kinematic mismatch in tires between inner and outer wheels is performed by fact, that in inner and outer tires different air pressure is set. For this purpose, first, in inner wheels tires optimum pressure is set, required for soil treatment depending on operation type, performing test drive on section, where soil treatment operation will be performed, visually determining depth of gauge left by inner and outer wheels, if outer wheel leaves more deep gauge, than inner one, then reducing pressure in outer wheel tire, in case of reverse effect increasing pressure in outer wheel tire to ensure equal depth gage.EFFECT: improvement of traction-adhesion and operational performance of all-wheel driven machines.1 cl, 2 dwg

Binding layer containing structure // 2610511
FIELD: manufacturing technology.SUBSTANCE: method of layered structure making includes following stages: (A) adhesive binding composition formation, containing mixture of: (1) 100 wt% per total weight of elastomer in adhesive binding composition of, at least, one halogenated isobutylene-containing elastomer; (2) from approximately 20 to approximately 50 wt% per total weight of adhesive binding composition of, at least, one filler; (3) from approximately 0 to approximately 30 wt% per total weight of adhesive binding composition of, at least, one process oil; (4) from approximately 1 to approximately 20 parts per hundred (phr) of, at least, one stickiness imparting agent; and (5) from approximately 0.1 to approximately 15 parts per hundred parts (phr) of rubber vulcanizing system for said elastomers; (B) formation of composition, preventing fluid medium ingress, wherein composition contains (1) at least 10 wt% per total weight of polymer composition of, at least, one technical polymer thermoplastic component, having Young's modulus greater than 500 MPa, where technical polymer thermoplastic component is selected from group consisting of polyamide resins, polyester resins, polynitril resins, polymethacrylate resins, polyvinyl resins, cellulose resins, fluorinated resins, as well as imide resins, (2) at least 10 wt% per total weight of polymer composition of, at least, one elastomeric component, having Young's modulus of not more than 500 MPa, where elastomeric component is selected from group consisting of diene rubbers, halogen-containing rubbers, silicone rubbers, sulphur-containing rubbers and fluorinated rubbers, and (3) from 2 to 30 parts per hundred parts of rubber in terms of component (2) total weight, plasticizer, wherein thermoplastic technical resin, elastomer and plasticizer are mixed under conditions of dynamic vulcanization in order, to disperse elastomer as disperse phases in solid matrix from thermoplastic technical resin; (C) forming film from composition which prevents fluid medium ingress; (D) processing film preventing fluid medium ingress to remove residual plasticizers or oils from film surface to form processed film; and (E) direct coating of treated film one surface with adhesive binding composition for, to form layered structure.EFFECT: invention relates to layered structure suitable for use as pneumatic tire inner layer.17 cl, 3 dwg, 4 tbl

Heavy duty tire // 2609910
FIELD: machine engineering.SUBSTANCE: invention relates to the automotive industry. The first breaker-strip ply in the heavy duty tire contains a cord extending at the inclination angle more than 45° to the tire circumferential direction, the second breaker-strip ply contains a cord extending in the tire circumferential direction, and the third breaker-strip ply contains a cord extending at the inclination angle less than 30° to the tire circumferential direction in the opposite direction from the first breaker-strip ply. The breaker-strip plies are placed so that the first breaker-strip ply is the most remote inside in the tire radial direction and is placed outside the circumferential side of the upper frame extending toroidally between the both boards, herewith the w3 width of the third breaker-strip ply is at least 80% of the w tread width, and w2<w1<w3 where w1 is the width of the first breaker-strip ply and w2 - the width of the second breaker-strip ply.EFFECT: invention improves the tire durability.19 cl, 3 dwg, 1 tbl

Polymers functionalised with lactones or thiolactones, containing protected amino group // 2609799
FIELD: chemistry.SUBSTANCE: invention relates to polymers, functionalised with lactone or thiolactone, containing a protected amino group. Method of producing a functionalised polymer includes steps: polymerisation of conjugated diene monomer and optionally a monomer copolymerisable with it to form a reactive polymer and reaction of reactive polymer with lactone or thiolactone containing protected amino group.EFFECT: invention reduces hysteresis and lowers cold flow of polymers.17 cl, 2 dwg, 3 tbl, 10 ex
Elastomer composition exhibiting good dispersion of filler in elastomeric matrix // 2609471
FIELD: chemistry.SUBSTANCE: invention relates to the rubber composition based on diene elastomer, reinforcing filler containing industrial carbon and inorganic filler in an amount which is less than or equal to 50 pts.wt per 100 pts.wt of elastomer. The composition is obtained from the first master batch comprising the first diene elastomer and industrial carbon and containing industrial carbon dispersion in the elastomer matrix with the value of Z, which is greater than or equal to 90. The mother batch is added with an inorganic filler and the second elastomer, which is identical to the first elastomer or different from it.EFFECT: invention allows to improve the dispersability of fillers in the composition and to improve the hysteresis properties.16 cl, 8 tbl
ethod of producing mother batch based on diene elastomer and silica // 2609162
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing a master batch of diene elastomer and silica, as well as to use of said master batch in production of compositions based on diene rubber, reinforced with inorganic filler, meant for making tyres or intermediate products for tyres, in particular treads for said tyres. Method includes following steps: preparation of at least one silica dispersion in water, bringing into contact and mixing latex elastomer and aqueous dispersion of silica in presence of at least one salt of bivalent zinc to obtain coagulate, extracting coagulate, drying extracted coagulate to obtain a master batch. Molar content of zinc cations, defined as number of moles of zinc cations of zinc salt per unit surface area of silica, ranges from 1.19×10-6 to 5.62×10-6 mol/m2.EFFECT: method enables to achieve good level of output product with simultaneous monitoring of content of filler, added in advance, and good dispersion of filler in elastomer matrix.18 cl, 1 tbl
ethod of producing mother batch based on diene elastomer and silica // 2609161
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing a master batch of diene elastomer and silica, as well as to use of said master batch in production of compositions based on diene rubber, reinforced with inorganic filler, meant for making tyres or intermediate products for tyres, in particular treads for said tyres. Method includes following steps: preparation of at least one silica dispersion in water, bringing into contact and mixing latex elastomer and aqueous dispersion of silica in presence of calcium salt to produce coagulate, extraction of coagulate, drying extracted coagulate to obtain a master batch. Molar content of calcium cations, defined as number of moles of calcium cations of calcium salt per unit surface area of silica, ranges from 1.19×10-6 to 2.81×10-6 mol/m2.EFFECT: method enables to achieve good level of output product with simultaneous monitoring of content of filler, added in advance, and good dispersion of filler in elastomer matrix.18 cl, 1 tbl

Detachable caterpillar device increasing flotation ability // 2608823
FIELD: transportation.SUBSTANCE: invention relates to devices intended for increasing of vehicles flotation ability on weak soils. Detachable caterpillar device for increasing of vehicle flotation ability, which working surface is caterpillar made from rubber on metal or textile cord base. Caterpillar is made with possibility of putting on onto wheel and fixation by support units consisting of support and tensioning rollers arranged in parallel, to which shock-absorbing devices are attached, containing telescopic tubes with springs working for compression. Shock-absorbing device springs connecting support unit with bracket, on which tensioning roller is arranged. Device has plurality of support rollers in each support unit. Device has detachable splinted connection of caterpillar belt. On caterpillar belt teeth are made to prevent tracks falling out from device.EFFECT: enabling increase in vehicle flotation ability.4 cl, 4 dwg
Pneumatic tyre // 2608550
FIELD: motor industry.SUBSTANCE: invention relates to automotive industry. Tread comprises inner and outer edges, of internal and external central main grooves passing in longitudinal direction, located on both sides of tire equator and limiting central area between them, inner and outer shoulder main grooves passing in longitudinal direction, arranged axially outside from internal and external central main grooves, two medium areas, including inner middle area, limited by inner central main groove and inner shoulder main groove, and outer middle area limited by outer central main groove and outer shoulder main groove, two shoulder areas. Outer shoulder main groove has width smaller than that of other main grooves. Outer middle area has width exceeding that of inner middle area. There are also shoulder transverse grooves, each of which passes from outer edge to tire equator beyond outer shoulder main groove limits.EFFECT: improved stability of steering and uneven wear resistance while maintaining drainage characteristics.10 cl, 4 dwg, 1 tbl
Pneumatic tire pressure regulator // 2608030
FIELD: motor industry.SUBSTANCE: invention relates to automotive industry. Pressure regulator consists of a body with a cylindrical cavity restricted with walls, a bottom and a cover; a channel to supply the body cavity with air under pressure and a channel to discharge air from the body to the tire and from the tire; a membrane limiting the cavity formed in the body under the cover; a diaphragm installed inside the body cavity and separating it into two chambers: a chamber under the diaphragm and a chamber above the diaphragm; the first seat and the second seat. Hole with the first seat is located in the body bottom and is connected with the channel of air supply under pressure. Diaphragm has a V-shape recess in the circumferential direction, the outer petal of which can tightly fit to the cylindrical wall of the cavity above the diaphragm. Diaphragm is a check valve passing the air only in the direction from the chamber under the diaphragm. In the chamber above the diaphragm there is a tightly and rigidly installed first cylindrical jar having a hole in the bottom with the second seat. In the first cylindrical jar there is a tightly and movably installed second cylindrical jar, in the bottom of which there is a cylindrical ring. In the cover there is a cavity connected to the cavity of the second jar and a spring resting on a washer adjacent to the membrane. In the upper end of the cover there is an annular groove connected with the atmosphere with a V-shape collar, the edge of which adjoins the surface of the annular groove.EFFECT: lower labor input for making the pressure regulator at higher speed of its response to changing pressure in a pneumatic tire.4 cl, 6 dwg

ethod and device for determining state of road surface // 2607917
FIELD: measurement technology.SUBSTANCE: accelerometer detects a signal of time series of oscillations of tyre, breaks it down into intervals using breaking means, then signals of time series of oscillations of tyre are separated for corresponding intervals, followed by calculating characteristic vectors of corresponding time intervals. Method then includes calculating a kern-function based on characteristic vectors of corresponding time intervals and based on characteristic vectors of road surface, which are characteristic vectors for respective time intervals calculated based on time signals of time series of oscillations of tyre, previously obtained for each specific state of road surface. State of road surface is determined by comparing values of discriminant functions using kern-function. As a result state of road surface is determined based on signals of time series of tyre oscillations without detecting positions of peak values or measuring wheel speed.EFFECT: improved correctness of method of determining state of road surface during change of dimensions of tyre.4 cl, 10 dwg, 1 tbl

otorcycle tire // 2607854
FIELD: machine building.SUBSTANCE: tire tread comprises inner inclined main grooves arranged on each side of tire equator in staggered order, inclined axially outward in direction corresponding to specified direction (R) of rotation, at angle from 5 to 30° relative to longitudinal direction, and inner end (Ai) of every said groove is located at distance from 0 to 30 % of half tread width (W) from tire equator. Also there are external inclined main grooves 11 located at each side from tire equator in staggered order, inclined axially outwards in direction opposite to specified direction of rotation, at angle from 10 to 60° relative to longitudinal direction, and inner end (Bi) of every said groove is located axially inside from outer end (Ao).EFFECT: improved roll characteristics without deterioration of tire adhesion and durability characteristics.4 cl, 6 dwg, 1 tbl
ethod of producing polymer composition and polymer composition // 2607813
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing a polymer composition. Method involves polymerisation of styrene monomer or butadiene monomer in presence of a catalyst for synthesis of polystyrene or polybutadiene; addition of isoprene monomer to synthesized polystyrene or polybutadiene for synthesis of polyisoprene and formation of a mixture. Content of styrene monomer or butadiene monomer is more than 0 mol%, but less than 10 mol% relative total amount of styrene monomer or butadiene monomer and isoprene monomer.EFFECT: invention enables to obtain good wear resistance - breaking strength, abrasion resistance and cracking resistance.12 cl, 2 tbl
Rubber mixture, preparation method thereof and cured rubber produced therefrom // 2607581
FIELD: rubber industry.SUBSTANCE: invention relates to rubber mixture, method of its production and cured rubber from it. Rubber mixture contains non-crosslinked rubber and rubber particles, having radiation cross-linked structure, dispersed in it. Particles of rubber, are particles of synthetic rubber and/or natural rubber particles with average particles size from 20 to 500 nm and content of gel of 60 wt%. or more. Non-crosslinked rubber is butadiene-styrene rubber. Weight ratio of rubber particles, having radiation cross-linked structure, and non- cross-linked rubber ranges from 1:99 to 20:80. Rubber mixture is produced by mixing of components, containing non- cross-linked rubber latex and rubber particles latex, having radiation cross-linked structure, and their subsequent coagulation. Rubber particles latex, having radiation cross-linked structure, is rubber latex after radiation cross-linking.EFFECT: invention allows to improve rolling resistance, resistance to slipping on wet road and wear resistance of cured rubber from rubber mixture.10 cl, 9 tbl, 5 ex
otorcycle tire // 2607524
FIELD: machine building.SUBSTANCE: tire tread comprises first and second areas, divided by tire equator. Tread is provided with first inner inclined grooves arranged in first area, and second inner inclined grooves arranged in second area. First and second inner inclined grooves are arranged alternately in tire lengthwise direction. Inner inclined groove passes from axially-inner end Ai in direction opposite to specified direction of rotation, to axially-external end Ao at angle α from 0 to 20° relative to tire lengthwise direction. Tread is also equipped with first external inclined grooves arranged in first area, and second external inclined grooves arranged in second area, and first and second outer inclined grooves are arranged alternately in tire lengthwise direction.EFFECT: improved tire movement performances while turning without deterioration of other characteristics.6 cl, 6 dwg, 3 tbl

Pneumatic tyre // 2607491
FIELD: machine building.SUBSTANCE: invention relates to automotive industry, in particular, to a winter tire tread pattern. Pneumatic tire comprises annular grooves, multiple transverse grooves and longitudinal grooves, communicating between transverse grooves on outer side of the annular grooves in a tire width direction. Each transverse groove includes the first part of the transverse groove, the second part of the transverse groove located farther outward in a tire width direction than the first part of the transverse groove, and a transition part of the transverse groove connecting the first and the second parts of of the transverse groove. Centre of the groove in width of the outer end in a tire width direction, the first part of the transverse groove is located closer to one peripheral side of the tire, than the centre of the groove in width of the inner end in a tire width direction, the second part of the transverse groove. Longitudinal grooves are inclined relative to tire circumferential direction to the opposite side, on which a transition part of the transverse groove passes. End on one circumferential side of the tire of each longitudinal groove is connected with a section, where the second part and the transition part of the transverse groove on one peripheral side of the tire are connected together. End on the other circumferential side of the tire of each longitudinal groove is connected with a section, where the first part and the transition part of the transverse groove on the other peripheral side of the tire are connected together.EFFECT: technical result is improvement of drainage characteristics at good operational features on snowy and icy roads.5 cl, 3 dwg

Pneumatic tire carcass with air-tight system containing stabilizing fabric // 2607341
FIELD: transport.SUBSTANCE: invention relates to automotive industry. Tire carcass comprises at least one layer of stabilizing fabric and air-tight layer connected to stabilizing fabric. Stabilizing fabric contains multiple reinforcing threads, and it is arranged in the carcass so, that reinforcing threads are placed in radial direction of the carcass. Reinforcing threads include monoaxially extended belt elements with cross section of rectangular shape, top surface and bottom surface. Belt elements comprise, at least the first layer, characterized by the degree of tension, at least about 5, modulus of elasticity, at least about 2 GPA and density at least 0.85 g/cm3. First layer contains a polymer selected from a group consisting of polyamides, polyesters, copolymers and their combinations.EFFECT: technical result is increase of tire strength in radial direction and along the circumference.15 cl, 17 dwg

Tire // 2607153
FIELD: machine building.SUBSTANCE: invention relates to tire, on which inner surface electronic device (7) is installed. Tire comprises two beads, having surfaces for contact with rim, and electronic device (7) installed on tire inner surface. In cross-section, perpendicular to tire circumferential direction along tread width, external in radial direction of tire electronic device (7) edge (7b) is located from inner in tire radial direction side relative to initial point (P1), located in radial direction outside external in tire radial direction of rim edge area (2b) at distance, equal to bead thickness (T1) in specified area, where this zone is located on external in tire radial direction surface edge (2a) of bead with rim contact. Extreme internal in tire radial direction bead surface is made with possibility to rest against rim base, which includes setting ring flange and collar, adopted for base attachment to this flange, against which bead outer surface rests, wherein after rim installation inner in tire radial direction electronic device edge (7a) is located on outer in radial direction side from setting ring collar outer edge.EFFECT: technical result is creation of tire, enabling to prevent failures, such as electronic device breakage or its disconnection during side walls deformation due to tire puncture or abrupt pressure drop.7 cl, 5 dwg

Tire with improved bead // 2606783
FIELD: machine building.SUBSTANCE: invention relates to automotive industry, in particular, to passenger cars tires. Tire comprises two beads (20), each of which contains, at least, one circular reinforcing structural element (70), and carcass stiffener (60) fixed in two beads by wrapping, in which every bead comprises filler (110) formed from rubber mixture. Filler passes in radial direction on distance DBE determined in radial direction from bead radial circular reinforcing structural element innermost point. DBE distance in radial direction is smaller than or equals to 10% of tire profile height H in radial direction. At least, one tire bead additionally comprises stiffener (140), formed from plurality of metallic reinforcement elements (145, 146, 147), oriented at angle, which is less than or equal to 10 degrees relative to direction along circumference.EFFECT: technical result is reduced rolling resistance in combination with good durability.13 cl, 11 dwg, 2 tbl
Stud tire // 2606782
FIELD: machine building.SUBSTANCE: invention relates to automotive industry. Studded tire (10) tread (20) includes first part (201) in contact with soil and second part (202), arranged radially inside relative to first part, and at least one stud (30) projecting outward from tread (20). Stud head (70) is completely fixed in tread (20) second part (202). Complex modulus G* (0 °C) of first rubber composition, which forms tread (20) first part (201), is less than 1.5 MPa. Complex modulus G* of rubber composition, forming tread (20) second part (202), varies with temperature so that G* (5 °C) is equal to or more than 5 MPa, and G* (20 °C) is less than or equal to 0.5G* (5 °C).EFFECT: technical result is improved tire adhesion on ice at its reduced impact on asphalt. 10 cl, 8 dwg, 2 tbl
Elastomeric mixture exhibiting very good dispersion of filler in elastomeric matrix // 2606421
FIELD: manufacturing technology.SUBSTANCE: invention relates to a rubber composition with good dispersion of filler. Method comprises preparing a rubber composition based on diene elastomer, filler containing carbon black and inorganic filler containing inorganic filler less or equal to 50 wt% per 100 pts.wt elastomer. Rubber composition contains a crosslinking system, and dispersion of filler in elastomer matrix has a value Z greater than or equal to 80. First mother batch of diene elastomer and carbon black is obtained first. Inorganic filler is introduced into dried first mother batch.EFFECT: invention reduces hysteresis and improves tear resistance.16 cl, 3 tbl

Pneumatic tyre // 2606251
FIELD: machine building.SUBSTANCE: invention relates to automotive industry. Pneumatic tire comprises tire tread section, provided in tread surface by plurality of stud pins mounting holes, and plurality of stud pins inserted in these holes. Each of holes includes fastening section, which comes into contact with entire periphery of each stud pins to fix stud pin. Fastening section comprises protrusion, provided on its internal wall, which passes in direction to holes depth and directs studding gun teeth in direction to holes depth, wherein studding gun drives stud pins into holes. Protrusion is deformed in accordance with stud outer peripheral surface, inserted into each hole, so that protrusion entire surface comes in contact with stud outer peripheral surface.EFFECT: technical result is simplification of studs installation and increase in reliability of their fixation in tire.11 cl, 14 dwg, 2 tbl

Pneumatic tyre // 2605808
FIELD: motor vehicle industry.SUBSTANCE: invention relates to automotive industry, in particular, to winter tire. Tread 2 of pneumatic tire is divided by central longitudinal grooves and shoulder longitudinal grooves onto central portion 6, outer middle portion 7A, inner middle portion 7B, outer shoulder portion 8A and inner shoulder land portion 8B. Outer shoulder portion 8A includes a number of external shoulder blocks 22 separated by outer shoulder longitudinal grooves 5A. Inner shoulder portion 8B includes inner shoulder longitudinal grooves 26 containing inner end 26i and outer end 26o within portion 8B, and inner shoulder auxiliary grooves 28 located between inner shoulder longitudinal grooves 26, 26, adjacent in longitudinal direction, and containing inner end 28i and outer end 28o within portion 8B. Inner mid portion 7B includes inner middle additional groove 18 extending continuously in longitudinal direction, and the inner middle connecting bars 21.EFFECT: improved drainage characteristics of tire, as well as running characteristics on snowy and icy road while maintaining stable steering on dry road surface.6 cl, 5 dwg, 1 tbl

Stud tire // 2605652
FIELD: motor vehicle industry.SUBSTANCE: invention relates to automotive industry. Tire comprises tread, made of at least one rubber mixture and having tread surface, plurality of seats, open on tread surface through opening and containing stud. Openings on tread surface have maximum size of D0, when stud is in seat. Each stud has base, fixed in tread, tip protruding from tire for contact with ice, body connecting base and tip and having axis of symmetry, and longitudinal axis passing through body axis of symmetry. Tread enveloping stud forms stud fixing platform, and this platform, in its turn, is surrounded with cavity, open on tire surface, so, that volume of cavity, open on tread surface in radius larger than or equal to D0/2 and less than or equal to D0/2+2 mm, around pin longitudinal axis is less than or equal to 20 mm3. Volume of cavity, open on tread surface in radius larger than or equal to D0/2+2 mm and less than or equal to D0/2+4 mm, around stud longitudinal axis is greater than or equal to 60 mm3 and less than or equal to 100 mm3.EFFECT: better tire adhesion with ice at reduced stud wear on asphalt.10 cl, 17 dwg, 1 tbl

ethod of producing master batch of mixture of diene elastomer and silicon dioxide // 2605253
FIELD: technological processes; chemistry.SUBSTANCE: invention relates to a method of producing a master batch diene elastomer and silicon dioxide. Method includes consecutive steps: of obtaining silicon dioxide dispersion in water; reacting and mixing of elastomer latex and an aqueous dispersion of silicon dioxide in presence of an aluminium salt to produce a coagulate; separating coagulate; drying separated coagulate to obtain a master batch. Molar content of aluminium cations, defined as number of moles of aluminium cations in aluminium salt, per unit surface of silicon dioxide, ranges from 1.15·10-6 to 5·10-6 mol/m2.EFFECT: invention provides a simple method of producing a master batch of a "silicon dioxide-elastomer" mixture in liquid state.19 cl, 1 tbl

Rubber mixture and pneumatic tire // 2605250
FIELD: rubber industry.SUBSTANCE: invention relates to rubber mixtures and pneumatic tires, produced from them. Rubber mixture contains for 100 wt% of rubber component at least 35 wt% of butadiene-styrene rubber, conjugated diene polymer and silicon dioxide with specific surface area, measured from nitrogen adsorption from 40-400 m2/g. Conjugated diene polymer is produced by monomer component polymerization, including conjugated diene compound, and silicon-containing vinyl compound, in presence of polymerization initiator of formula (I):with production of copolymer. Then interacts with compound, containing at least one atom of nitrogen atom and/or silicon atom, with copolymer active terminal group. Rubber mixture contains: conjugated diene polymer from 1 to 90 wt%; rubber based on polyisoprene from 0 to 40 wt% per 100 wt% of rubber component; silicon dioxide from 10 to 150 wt%. per 100 weight parts of rubber component.EFFECT: invention allows to obtain rubber mixture, which enables to achieve balanced improvement of processability, fuel saving, rubber strength, resistance to abrasive wear, gripping with wet road surface and driving stability properties.17 cl, 25 tbl, 213 ex

Tyre // 2605220
FIELD: machine building.SUBSTANCE: invention relates to automotive industry, in particular, to tires. Tire comprises running sections, formed on tread section, and breaker layers. Running sections are divided into segments by means of groove in circumferential direction, grooves in width direction and tread end sections along tire width. Length of each groove in tire width direction is not less than 30 % of tread section length along tire width. Every groove in width direction has inclined section. Inclined section is located next to position along tire width, which is connected with breaker layer end section, which has minimum angle between cords, which form breaker layer, and tire circumferential direction.EFFECT: enabling higher driving force on running sections by making inclined sections of tire tread.5 cl, 13 dwg, 2 tbl

Pneumatic tyre // 2605219
FIELD: machine building.SUBSTANCE: invention relates to a pneumatic tire. Pneumatic tire comprises a tread, multiple strips on the tread confined by a main circular groove passing in circumferential direction of the tire, multiple blocks on the shoulder tread strip which is most remote outward in the direction over the tire width. Blocks are confined by multiple narrow grooves with width which is less than the width of the main circular groove, and auxiliary groove, width of which increases outward in the direction over the tire width in the zone not adjacent to the main circular groove. Auxiliary grooves enter the main circular groove, and on entry into the main circular groove there is a head width of which exceeds minimum width of the auxiliary grooves. Surface area of each block of the tread is 100-200 mm2.EFFECT: better adhesion and braking characteristics during driving over ice without deterioration of drainage properties.9 cl, 10 dwg, 1 tbl
ethod for preparation of master batch of diene elastomer and silicon dioxide // 2605124
FIELD: technological processes; chemistry.SUBSTANCE: invention relates to a method of preparing a master batch of diene elastomer with silicon dioxide. Method includes consecutive steps: of preparing a silicon dioxide dispersion in water, contacting and mixing elastomer latex and an aqueous dispersion of silicon dioxide in presence of a metal salt, containing a divalent metal, to obtain a coagulate, separating coagulate, drying separated coagulate to obtain a master batch. Molar content of metal cations, defined as number of moles of metal cations of metal salt per unit of measured BET specific surface area of silicon dioxide, ranges from 9.375×10-7 to 1.875×10-5 mol/m2. Silicon dioxide has BET specific surface area from 30 to 400 mol/m2.EFFECT: invention simplifies method with good dispersion of filler in elastomer matrix.19 cl, 3 tbl

Rubber composition // 2605122
FIELD: rubber industry.SUBSTANCE: invention relates to rubber industry and specifically concerns a rubber mixture, vulcanized rubber containing component that improves the viscoelastic properties of vulcanized rubber, method for improving viscoelastic properties of vulcanized rubber and an agent improving such properties, as well as to elements of their processing including pneumatic tires, technical band for tire, tire carcass and tire side strip. Rubber mixture is obtained by mixing at least one component selected from a group consisting of (A1), (B1), (C1) and (D1), rubber component and filler. Method for improving the viscoelastic properties of vulcanized rubber includes the first step of mixing at least one component selected from a group consisting of (A1), (B1), (C) and (D1), rubber component, filler and sulfur component, and the second stage of thermal treatment of mixed material obtained at the previous step. Said components (A1), (B1), (C1) and (D1) are: (A1): compound represented by formula (I), (B1): salt compound represented by formula (I), (C1): solvate compound represented by formula (I), (D1): solvate salt of a compound represented by formula (I): .EFFECT: invention allows to improve viscoelastic properties of rubber and reduce fuel consumption.21 cl, 12 tbl, 106 ex

ethod for pressure adjustment in vehicle tyres // 2604823
FIELD: agriculture.SUBSTANCE: invention relates to agricultural vehicles. Method consists in pressure adjustment in at least one first and one second tyre (9, 21) of vehicle (1) from the initial value (p9a, p21a) to the target value (p9z, p21z) which is between the initial value (p9a, p21a) and pressure of tank (4; 22), where: a) air flow is blown through the first line (7) between the first tyre (9) and tank (4; 22) and the second line (20) between the second tyre (21) and tank (4; 22); b) determination of the tyre wherein the pressure may achieve the target value first (p9z); c) air flow is restricted in line (7) of tyre (9) determined at step b), or air flow is increased in the tyre (21) line not determined at step b).EFFECT: shorter time for pressure adjustment in vehicle tyres.15 cl, 4 dwg
 
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