Abstract: A top-blowing lance nozzle is configured to freely switch an adequate expansion condition so as to control an oxygen-blowing amount and a jetting velocity independently of each other without requiring a plurality of lance nozzles or a mechanically movable part. A lance nozzle is configured to blow refining oxygen to molten iron charged in a reaction vessel while a gas is blown from a top-blowing lance to the molten iron. One or more blowing holes for blowing a working gas are on an inner wall side surface of the nozzle, at a site where the lance nozzle has a minimum cross-sectional area in a nozzle axis direction or at a neighboring site of the site.

Abstract: Provided is a motor device in which the entire length of a motor can be shortened as much as possible while the positional deviation of a shaft in a thrust direction is prevented and a shaft length sufficient to suppress the inclination of the shaft can be ensured. A motor device provided with a shaft with a rotor fixed on the outer surface thereof, and a thrust pressurization unit that supports an end opposite the output side of the shaft while pressurizing the end in an axial direction may be configured so that the thrust pressurization unit may be provided with a coil spring that pressurizes the end opposite the output side of the shaft in the axial direction and the thrust pressurization unit may be disposed inside the rotor.

Abstract: An impeller device may include a magnetic detecting element and a magnetic body, which is paired with the magnetic detecting element, for detecting a rotational position of a rotary impeller. The rotary impeller is formed with a bottomed recessed part having an opening into which one of the magnetic detecting element or the magnetic body is inserted, and the opening of the recessed part is sealed with resin injected by insert molding so that the one of the magnetic detecting element and the magnetic body is buried in the rotary impeller. The magnetic detecting element and the magnetic body are capable of facing to each other through a bottom face of the bottomed recessed part.

Abstract: Provided is a motor device in which the entire length of a motor can be shortened as much as possible while the positional deviation of a shaft in a thrust direction is prevented and a shaft length sufficient to suppress the inclination of the shaft can be ensured. A motor device provided with a shaft with a rotor fixed on the outer surface thereof, and a thrust pressurization unit that supports an end opposite the output side of the shaft while pressurizing the end in an axial direction may be configured so that the thrust pressurization unit may be provided with a coil spring that pressurizes the end opposite the output side of the shaft in the axial direction and the thrust pressurization unit may be disposed inside the rotor.

Abstract: A motor device may include a motor, a plurality of pin terminals protruded from a side face of a motor case on an outer side in a radial plane direction, and a wiring circuit board which is connected with the plurality of the pin terminals. The plurality of the pin terminals includes first pin terminals which are bent at predetermined positions in the radial plane direction toward one side in an axial direction of the motor, and second pin terminals which are bent toward the one side in the axial direction at inner sides in the radial plane direction with respect to the first pin terminals. The wiring circuit board is connected with the first pin terminals and the second pin terminals in a state where a circuit board face is directed in the axial direction.

Abstract: An impeller device may include a magnetic detecting element and a magnetic body, which is paired with the magnetic detecting element, for detecting a rotational position of a rotary impeller. The rotary impeller is formed with a bottomed recessed part having an opening into which one of the magnetic detecting element or the magnetic body is inserted, and the opening of the recessed part is sealed with resin injected by insert molding so that the one of the magnetic detecting element and the magnetic body is buried in the rotary impeller. The magnetic detecting element and the magnetic body are capable of facing to each other through a bottom face of the bottomed recessed part.

Abstract: A motor device may include a motor, a plurality of pin terminals protruded from a side face of a motor case on an outer side in a radial plane direction, and a wiring circuit board which is connected with the plurality of the pin terminals. The plurality of the pin terminals includes first pin terminals which are bent at predetermined positions in the radial plane direction toward one side in an axial direction of the motor, and second pin terminals which are bent toward the one side in the axial direction at inner sides in the radial plane direction with respect to the first pin terminals. The wiring circuit board is connected with the first pin terminals and the second pin terminals in a state where a circuit board face is directed in the axial direction.