Abstract: Provided are a straddle type monorail vehicle in which a center pin provided in a vehicle body can be mechanically fastened to a center pin holding portion provided in a bogie via a cushioning rubber with a small number of work steps, and an assembly method thereof. The center pin has a hollow shape in which both ends are opened, and includes a large cylindrical portion on a bolster beam side and a small cylindrical portion that is connected to the large cylindrical portion and that is coaxial with the large cylindrical portion, the center pin holding portion is elastically supported by a bogie frame forming a frame body of the bogie, and has a hollow portion into which the small cylindrical portion of the center pin is inserted. A fixing metal fitting has a cylindrical rod shape inserted through the center pin that includes first and second threaded portions.

Abstract: A power transmission device includes a flywheel, a torque limiter unit, and a damper unit. The torque limiter unit includes first and second side plates and a friction plate. The first side plate is attached to the flywheel. The first side plate is disposed on a first axial side to the flywheel. The friction plate is disposed axially between the first side plate and the second side plate. The damper unit includes input rotational bodies, an output plate, and an elastic member. The output plate is disposed axially between the first side plate and the flywheel.

Abstract: A power transmission device includes a flywheel with increased inertia and a damper device. The flywheel includes a body portion, an attachment portion, and a first protruding portion. The attachment portion is disposed radially outward with respect to the body portion. The first protruding portion is disposed radially outward with respect to the attachment portion. The first protruding portion protrudes toward a first axial side with respect to the attachment portion. The damper device is disposed on the first axial side with respect to the body portion. The damper device is attached to the attachment portion.

Abstract: The object of the present invention is to provide a melting/refining furnace for cold iron sources and an operation method for a melting/refining furnace that can increase the heating efficiency of the raw material without causing oxidation of the raw material, reduce the amount of power consumption required for melting the raw material, shorten the melting and refining time, improve the productivity, and reduce costs, and the present invention provides a melting/refining furnace including: one or more through-holes (21) provided to penetrate a furnace wall (2A) of an electric furnace (2); and an oxygen burner-lance (3) provided in the through-hole (21), wherein the oxygen burner-lance (3) includes at least one combustion-supporting gas supply pipe (31) and at least one fuel gas supply pipe (32) which have an opening communicating with an inside of the electric furnace (2), and wherein a high-temperature gas generator (10) is provided in any one or more of the combustion-supporting gas supply pipes (31).

Abstract: A torsion damper is configured to be disposed inside a coil spring. The torsion damper includes a body and a helical groove. The body is made of resin. Besides, the body has a columnar shape. The helical groove is provided on the outer peripheral surface of the body.

Abstract: A method and device heat an object to be heated by a flame which is produced by supplying a fuel fluid and a combustion supporting gas to a burner as a heat, source. A temperature rising rate is increased by gradually increasing an oxygen concentration in the combustion supporting gas supplied to the burner and a device for heating an object to be heated including a burner for heating the object to be heated. A flow rate control unit controls a flow rate of a fuel fluid and a combustion supporting gas. A calculation unit transmits combustion information of the burner to the flow rate control unit, and the flow rate control unit increases a temperature rising rate of the object to be heated by increasing the oxygen concentration in the combustion supporting gas supplied to the burner.

Abstract: A torque limiter, fixed to a flywheel including an annular portion to which knock pins each including a trunk portion are fixed, is disclosed. The torque limiter includes a first plate, a second plate axially opposed to the first plate, a friction disc disposed between the first and second plates, a pressing member, and a third plate. The pressing member presses the second plate onto the friction disc. The third plate holds the pressing member together with the second plate therebetween. The third plate includes knock pin through holes such that the knock pin are fitted therein. The third plate is attached at an attachment surface thereof to the flywheel. A length between a surface of the pressing member, facing an interior of an accommodation portion of the flywheel, and the attachment surface of the third plate is shorter than a length of the trunk portion of each knock pin.

Abstract: One object of the present invention is to provide an apparatus for producing inorganic spheroidized particles which can significantly reduce the amount of warming gas generated and suppress the generation of soot during combustion. The present invention provides an apparatus (10) for producing inorganic spheroidized particles, including a burner (11) for producing inorganic spheroidized particles, a vertical spheroidizing furnace (15), an ammonia supply source (12), an oxygen supply source (13), an ammonia supply line (L1) located between the ammonia supply source (12) and the burner (11) for producing inorganic spheroidized particles, and an oxygen supply line (L2) located between the oxygen supply source (13) and the burner (11) for producing inorganic spheroidized particles.

Abstract: A power transmission device includes a flywheel and a torque limiter unit fixed to the flywheel. The flywheel includes an annular portion and an accommodation portion provided on an inner peripheral side of the annular portion to accommodate the torque limiter unit. The torque limiter unit includes a first plate, a second plate, a friction disc disposed between the first and second plates, and a pressing member. A torque is inputted to the first plate. The first plate includes first engaging portions. The second plate is axially opposed to and non-rotatable relative to the first plate. The second plate includes second engaging portions engaged with the first engaging portions. The pressing member presses the second plate onto the friction disc. The annular portion of the flywheel is provided with recesses on the inner peripheral surface thereof. The recesses are recessed radially outward in opposed positions to the second engaging portions.

Abstract: The object of the present invention is to provide a high-temperature oxygen generation device and a high-temperature oxygen generation method which can efficiently supply preheated high-temperature oxygen gas regardless of pressure conditions from normal pressure to high pressure, without requiring upsizing or expansion of the equipment, and the present invention provides a high-temperature oxygen generation device (10) in which a high-temperature gas (G4) and an oxygen gas (G3) to be heated are mixed to generate a high-temperature oxygen gas (G5), wherein the high-temperature oxygen generation device (10) includes a burner (1) which generates the high-temperature gas (G4), and a preheating chamber (7) which is provided on the downstream side of the burner (1) and mixes the high-temperature gas (G4) and the oxygen gas (G3) to be heated, and the burner (1) includes a combustion chamber (5) which forms a flame by a fuel gas (G1) and an oxygen gas (G2) for combustion, a fuel flow path (2) which supplies the fuel

Abstract: One object of the present invention is to provide a burner for producing inorganic spheroidized particles which can efficiently melt and spheroidize even organic powder with a large particle size distribution.

Abstract: One object of the present invention is to provide a burner for producing inorganic spheroidized particles which can significantly reduce the amount of warming gas generated and suppress the generation of soot during combustion. The present invention provides a burner (1) for producing inorganic spheroidized particles, including a raw material powder supply path (2A) which supplies inorganic powder as raw material powder; a first fuel gas supply path (3A) which supplies a first fuel gas containing no carbon source; and a first combustion-supporting gas supply path (4A) which supplies a first combustion-supporting gas.

Abstract: One object of the present invention is to provide a burner which makes it possible to prevent blockage and damage of the nozzle by the molten metal and the slag, and the present invention provides a burner including a combustion supporting gas supply passage which is configured to supply a combustion supporting gas toward a combustion supporting gas outlet provided at the center of the tip end side; a fuel supply passage which is configured to supply a fuel toward a fuel ejection outlet provided around the combustion supporting gas outlet; and a protective nozzle provided from a position surrounding a periphery of the fuel ejection outlet so as to project forward beyond the tip end surface at which the combustion supporting gas ejection outlet and the fuel ejection outlet are provided; wherein the combustion supporting gas supply passage includes a Laval nozzle, and a diameter-enlarged nozzle of which a diameter gradually increases from the tip end of the Laval nozzle toward the combustion supporting gas ejec

Abstract: A torque limiter fixed to a flywheel including an annular portion and an accommodation portion is disclosed. The torque limiter includes a first plate, a second plate axially opposed to the first plate, a friction disc disposed between the first and second plates, a pressing member, and a third plate. A torque is inputted to the first plate. The pressing member presses the second plate onto the friction disc. The third plate supports the pressing member with the second plate therebetween while the pressing member is compressed. The third plate includes a support portion supporting the pressing member and a tubular portion provided in an outer peripheral part of the support portion. The tubular portion covers an outer peripheral surface of the friction disc. The tubular portion axially extends and is opposed to an inner peripheral surface of the annular portion of the flywheel, and includes first openings circumferentially aligned.

Abstract: The object of the present invention is to provide a burner which is capable of decreasing the amount of NOx emission and heating the object to be heated uniformly with excellent heat transfer efficiency when heating the object to be heated while oscillating the flame by self-induced oscillation, and a method for heating using a burner, and the present invention provides a burner including a center fluid ejection outlet 2 having a sectional fan shape in which an interval between a pair of side walls 63a and 63b gradually expands toward a downstream side, a pair of openings 62a and 62b provided on side walls 61 of a fluid ejection flow path 6 on an upstream side of the central fluid ejection port 2 and communicated by a communication pipe 7, a first peripheral fluid ejection outlet arranged around the center fluid ejection outlet, a second peripheral fluid ejection outlet is arranged at a position at which a distance between a center thereof and a center of the center fluid ejection outlet is larger than a dist

Abstract: One object of the present invention is to provide a burner which can uniformly heat a wide area without decreasing the heat radiation even when the swing width of the flame self-oscillating is large, and the present invention provides a burner in which a main combustion fluid and a second combustion fluid are combusted by ejecting the main combustion fluid while self-oscillating from a central expanding ejection port (3) which expands towards a tip end and ejecting the second combustion fluid from a pair of side ejection ports (5 and 7) provided on both sides of the central expanding ejection port (3), wherein a pair of the side ejection ports (5 and 7) are disposed symmetrically with respect to a central axis of the central expanding ejection port (3), and the central expanding ejection port (3) and the side ejection ports (5 and 7) are provided such that an expanding angle ? of the central expanding ejection port (3) and an angle ? formed by the central axes of a pair of the side ejection ports (5 and 7) sa

Abstract: One object of the present invention is to improve efficiency at the time of operation of a melting and refining furnace of a cold iron source using an oxygen burner lance, and the present invention provides a melting and refining furnace comprising a through-hole provided through a furnace wall, one or more oxygen burner lances provided in the through-hole: and a thermometer which is configured to measure a temperature in the furnace, the oxygen burner lance has one or more openings communicating with the inside of the furnace, and the thermometer is provided in any one of the openings.

Abstract: A torsion damper disposed inside a coil spring is disclosed. The torsion damper includes a body and a groove. The body is made of resin. Besides, the body has a columnar shape. The groove is provided on the outer peripheral surface of the body.

Abstract: A torque limiter fixed to a flywheel including an annular portion and an accommodation portion is disclosed. The torque limiter includes a first plate, a second plate axially opposed to the first plate, a friction disc disposed between the first and second plates, a pressing member, and a third plate. A torque is inputted to the first plate. The pressing member presses the second plate onto the friction disc. The third plate supports the pressing member with the second plate therebetween while the pressing member is compressed. The third plate includes a support portion supporting the pressing member and a tubular portion provided in an outer peripheral part of the support portion. The tubular portion covers an outer peripheral surface of the friction disc. The tubular portion axially extends and is opposed to an inner peripheral surface of the annular portion of the flywheel, and includes first openings circumferentially aligned.

Abstract: A torque limiter, fixed to a flywheel including an annular portion to which knock pins each including a trunk portion are fixed, is disclosed. The torque limiter includes a first plate, a second plate axially opposed to the first plate, a friction disc disposed between the first and second plates, a pressing member, and a third plate. The pressing member presses the second plate onto the friction disc. The third plate holds the pressing member together with the second plate therebetween. The third plate includes knock pin through holes such that the knock pin are fitted therein. The third plate is attached at an attachment surface thereof to the flywheel. A length between a surface of the pressing member, facing an interior of an accommodation portion of the flywheel, and the attachment surface of the third plate is shorter than a length of the trunk portion of each knock pin.