Abstract: A method for improving the curvilinear running speed of railway vehicles and the small tilting system: when the railway vehicle is driven on a curve, the raising and falling of air springs on both sides of the railway vehicle are controlled by a control assembly to realize small tilting of the railway vehicle toward the inner side of the curve; the transverse component of gravity after the small tilting of the railway vehicle is used for balancing part of the centrifugal force and reducing the influence of the centrifugal force, thereby improving the curve driving speed of the railway vehicle; and at the same time, an adjustable torsion bar system is controlled to provide a unidirectional anti-rolling torque for preventing the railway vehicle from rolling toward the outer side of the curve without hindering the railway vehicle from tilting slightly toward the inner side of the curve.

Abstract: An active adjustment method of connecting rod length and an active adjustable connecting rod device, liquid medium is introduced into a first liquid cavity or a second liquid cavity, so that the piston is hydraulically driven to move, thereby realizing contraction of the connecting rod. The control system controls opening sizes and switching frequencies of the valves, to control extension or contraction speed of the connecting rod. To realize this method, design an active adjustable connecting rod device, which comprises two cylinders, a cylinder is connected with a rod body and a gas source by pipelines.

Abstract: A prefill valve structure for a refillable spray bottle, having a bottle body and a spray nozzle assembly arranged on the bottle body, wherein a partition is arranged at a lower end of the inside of the bottle body and used for dividing the bottle body into an upper cavity and a lower cavity, the center of the partition is cut through to allow liquid to flow into the bottle body. A tail valve assembly is arranged in the lower cavity of the bottle body, the tail valve assembly has a tail cover and a piston, the piston is arranged in the tail cover and provided with a filling hole and a vertically through exhaust hole, and a filling port and an exhaust plunger which correspond to the filling hole and the exhaust hole in the piston are arranged on the tail cover.

Abstract: The present invention relates to an adjustable torsion bar system and an anti-roll method, the adjustable torsion bar system is formed through the adjustable hydraulic connecting rods; and by controlling the flow of the liquid media, the characteristics of the hydraulic connecting rods are changed so that the length of the connecting rods has the characteristics of unchanged, unidirectional follow-up elongation or unidirectional follow-up shortening. Thus, the anti-rolling torsion bar system can provide the bidirectional anti-rolling torque or unidirectional anti-rolling torque to satisfy the safety driving requirements of the railway vehicle on different rails.

Abstract: A method for improving the curvilinear running speed of railway vehicles and the small tilting system: when the railway vehicle is driven on a curve, the raising and falling of air springs on both sides of the railway vehicle are controlled by a control assembly to realize small tilting of the railway vehicle toward the inner side of the curve; the transverse component of gravity after the small tilting of the railway vehicle is used for balancing part of the centrifugal force and reducing the influence of the centrifugal force, thereby improving the curve driving speed of the railway vehicle; and at the same time, an adjustable torsion bar system is controlled to provide a unidirectional anti-rolling torque for preventing the railway vehicle from rolling toward the outer side of the curve without hindering the railway vehicle from tilting slightly toward the inner side of the curve.

Abstract: An hourglass type air spring assembly includes an upper cover plate, an air bag, an upper end plate and a lower end plate. An outer periphery of the upper cover plate is connected with an outer periphery of the upper end plate through the air bag. A low-position hourglass elastomer and a high-position elastomer which are integrally formed are connected with each other between the upper end plate and the lower end plate. An annular notch is formed between the low-position hourglass elastomer and the high-position elastomer, and an annular rigid partition plate matched with the annular notch is arranged in the annular notch.

Abstract: A prepressed emergency air spring assembly includes an upper cover plate, an air bag, an upper end plate and a lower end plate. The periphery of the upper end plate is connected with an outer periphery of the lower end plate through the air bag. A steel spring is arranged between the upper cover plate and the upper end plate in a pressing mode. A plurality of hourglass elastomers are arranged between the upper cover plate and the upper end plate along a circumferential direction of the steel spring.

Abstract: A combined air spring system includes an upper cover plate, an air bag, an upper end plate and a lower end plate. An outer periphery of the upper cover plate is connected with an outer periphery of the upper end plate through the air bag. A low-position sand clock elastomer is connected between the upper end plate and the lower end plate. A pressing plate is installed at a bottom portion of the upper cover plate, and a high-position elastomer is connected between the upper cover plate and the pressing plate. A limiting table is arranged at a bottom portion of the pressing plate. A limiting groove is formed in a top face of the upper end plate. The limiting table is located in the limiting groove in a deflated state.

Abstract: An emergency air spring assembly includes an upper cover plate, an air bag, an upper end plate and a lower end plate. An outer periphery of the upper end plate is connected with an outer periphery of the lower end plate through the air bag. An hourglass elastomer is connected between the upper cover plate and the upper end plate. A plurality of steel springs are arranged between the upper cover plate and the upper end plate in a circumferential direction of the sand clock elastomer in a pressing mode.

Abstract: A pre-compression type emergency air spring assembly includes an upper cover plate, an air bag, an upper end plate, and a lower end plate. A periphery of the upper end plate is connected with a periphery of the lower end plate through the air bag. A top part of the upper end plate is provided with transverse pre-compression cavities and transverse pre-compression plates arranged at transverse openings of the transverse pre-compression cavities. The transverse pre-compression cavities are internally provided with laminated spring elastomers through the transverse pre-compression plates in a pressing mode. Multiple steel springs are arranged between the upper cover plate and the upper end plate in a pressing mode along a circumferential direction of the laminated spring elastomers. The upper cover plate is arranged on a periphery of the transverse pre-compression cavities in a sleeving mode.

Abstract: A pre-compression type emergency air spring assembly includes an upper cover plate, an air bag, an upper end plate, and a lower end plate. A periphery of the upper end plate is connected with a periphery of the lower end plate through the air bag. A top part of the upper end plate is provided with transverse pre-compression cavities and transverse pre-compression plates arranged at transverse openings of the transverse pre-compression cavities. The transverse pre-compression cavities are internally provided with laminated spring elastomers through the transverse pre-compression plates in a pressing mode. Multiple steel springs are arranged between the upper cover plate and the upper end plate in a pressing mode along a circumferential direction of the laminated spring elastomers. The upper cover plate is arranged on a periphery of the transverse pre-compression cavities in a sleeving mode.

Abstract: An emergency air spring assembly includes an upper cover plate, an air bag, an upper end plate and a lower end plate. An outer periphery of the upper end plate is connected with an outer periphery of the lower end plate through the air bag. An hourglass elastomer is connected between the upper cover plate and the upper end plate. A plurality of steel springs are arranged between the upper cover plate and the upper end plate in a circumferential direction of the sand clock elastomer in a pressing mode.

Abstract: A combined air spring system includes an upper cover plate, an air bag, an upper end plate and a lower end plate. An outer periphery of the upper cover plate is connected with an outer periphery of the upper end plate through the air bag. A low-position sand clock elastomer is connected between the upper end plate and the lower end plate . A pressing plate is installed at a bottom portion of the upper cover plate, and a high-position elastomer is connected between the upper cover plate and the pressing plate. A limiting table is arranged at a bottom portion of the pressing plate. A limiting groove is formed in a top face of the upper end plate. The limiting table is located in the limiting groove in a deflated state.

Abstract: A prepressed emergency air spring assembly includes an upper cover plate, an air bag, an upper end plate and a lower end plate. The periphery of the upper end plate is connected with an outer periphery of the lower end plate through the air bag. A steel spring is arranged between the upper cover plate and the upper end plate in a pressing mode. A plurality of hourglass elastomers are arranged between the upper cover plate and the upper end plate along a circumferential direction of the steel spring.

Abstract: An hourglass type air spring assembly includes an upper cover plate, an air bag, an upper end plate and a lower end plate. An outer periphery of the upper cover plate is connected with an outer periphery of the upper end plate through the air bag. A low-position hourglass elastomer and a high-position elastomer which are integrally formed are connected with each other between the upper end plate and the lower end plate. An annular notch is formed between the low-position hourglass elastomer and the high-position elastomer, and an annular rigid partition plate matched with the annular notch is arranged in the annular notch.