Abstract: This fuel injector comprises: a main body portion including an inflow port into which fuel supplied from a fuel supply source flows, a flow passage through which the fuel that has flowed in from the inflow port flows, and a discharge port which is connected to the flow passage and which discharges the fuel; a valve unit at least a portion of which is formed using a magnetic body, which is disposed so as to be capable of moving in a straight-line direction between a position closing the discharge port and a position opening the discharge port, which is urged in the direction opening the discharge port by means of the pressure of the fuel flowing in from the inflow port, and to which an elastic force is imparted by an elastic member in the direction closing the discharge port; a solenoid device which includes a coil, which generates an electromagnetic force by causing a drive current to flow through the coil, and which drives the valve unit in the direction opening the discharge port, by means of the electromag

Abstract: A cooling device that cools a semiconductor component mounted on a surface of a substrate includes a base attached to a back surface of the substrate, and a bottom plate disposed spaced apart from the base. A recessed part recessed toward the substrate side is formed in a region that is a surface, of the base, facing the bottom plate side and corresponds to the semiconductor component.

Abstract: The purpose of the present invention is to provide a light guide plate with which it is possible to prevent light unevenness and improve appearance, and a light emitting device using the same. A light guide plate (11) is provided with: a light incidence surface (12) on which light is incident; a light emission surface (13) which faces the light incidence surface (12) and from which light incident from the light incidence surface (12) is emitted; and a flat plate-shaped light guide member (14) which guides the light incident from the light incidence surface (12) to the light emission surface (13).

Abstract: A gas turbine cogeneration system includes: a gas turbine; a first fuel supply facility for supplying a first fuel to the combustor; a second fuel supply facility for supplying a second fuel with a calorific value per mass lower than the first fuel; a heat recovery steam generator for generating steam using exhaust gas discharged from the turbine; a steam supply line for supplying steam discharged from the heat recovery steam generator to a steam consumer; a steam extraction line for supplying steam extracted from the steam supply line to both a head end side of the combustor and a turbine side of the combustor; and a fuel control part for controlling the first and second fuel supply facilities so that the amount of the first fuel decreases and the amount of the second fuel increases with a decrease in extraction amount of steam by the steam extraction line.

Abstract: Provided are a variable geometry turbine and a turbocharger with the same. The variable geometry turbine is provided with a turbine impeller, a housing, a plurality of nozzle vanes, and a link mechanism. Inside the housing, a link compartment in which the link mechanism is accommodated is formed, the link compartment being separated from a nozzle flow path by a hub-side member having a hub side surface defining the nozzle flow path. The link mechanism and each of the plurality of nozzle vanes are coupled together via a nozzle shaft penetrating through the hub-side member. The hub-side member has at least one communication hole providing communication between the nozzle flow path and the link compartment. When each of the plurality of nozzle vanes is fully opened, the opening of the at least one communication hole on the nozzle flow path side is formed on the inner side radially of the turbine impeller than the leading edge of each of the plurality of nozzle vanes.

Abstract: A gas turbine includes a compressor for producing compressed air, a combustor for burning fuel with the compressed air, and a turbine driven by combustion gas generated by burning the fuel in the combustor, and is switchable between a normal operation mode which is an operation mode where a motor generator is driven by the turbine and a reverse power operation mode where the motor generator provides rotational power to the gas turbine. A fuel control device includes: a first valve for regulating pressure of fuel supplied to the combustor within a range of a first lower limit value and a first upper limit value; and a second valve for regulating pressure of the fuel supplied to the combustor within a flow rate range of a second lower limit value larger than the first lower limit value and a second upper limit value larger than the first upper limit value.

Abstract: A sign detection device includes: a plurality of sensors disposed at a plurality of positions on a detection target object and configured to measure physical quantities at each position; a data acquisition unit for acquiring time-series fluctuation data of the physical quantities from the plurality of sensors; a calculation unit for calculating, from the time-series fluctuation data, a parameter indicating a correlation between the physical quantities at arbitrary two positions among the plurality of positions; and a detection unit for detecting a sign of sudden change in vibration of the detection object based on the parameter.

Abstract: A threat coping system (10) is provided with a threat coping device (300) that copes with a coping target (30) and a control device (200) that controls the threat coping device. The control device (200) is provided with a no-coping area setting means (514) and a coping instruction means (526). The no-coping area setting means (514) sets a no-coping area (12) based on information of a no-coping target that is not to cope with. The coping instruction means (526) generates an instruction signal, that instructs the threat coping device to cope a coping target, based on the no-coping area.

Abstract: An additive manufactured object production method includes: a core portion forming step of additively forming a core portion as an inner portion of an additive manufactured object by stacking first weld beads each size of which is corresponding to a first resolution; and a shell portion forming step of additively forming a shell portion as an outer portion of the additive manufactured object on a surface of the core portion by stacking second weld beads each size of which is corresponding to a second resolution higher than the first resolution after the core portion forming step.

Abstract: A motor-integrated fan 1 including one or more motors integrated therein comprises: a shaft part 11 which serves as a supporting system disposed at the center of a rotational axis; a rotation part 12 which is a rotating system rotating about the shaft part 11; a duct 13 which serves as a supporting system provided on the outer periphery of the shaft part 11; and a motor 14 which rotates the rotation part 12, wherein the rotation part 12 comprises: a plurality of blades 32 rotatably supported at least on the shaft part 11 and rotating thereabout, the blades 32 being arranged in a circumferential direction of the rotational axis I; and a rotation support ring 33 connected on one side of each of the blades 32 in a radial direction of the rotational axis, the rotation support ring 33 supporting the plurality of blades 32.

Abstract: A printing device, a printing machine, and a box making machine are provided with printing cylinders on which printing plates can be mounted, ink supply rolls that are placed on the upstream or downstream sides of the printing cylinders in a sheet-conveying direction and that can be in contact with the printing cylinders, ink supply units that can supply ink to the ink supply rolls, first covers that cover the upper parts of the printing cylinders in the vertical direction and that can be opened and closed, and footholds that cover the vertically upper parts of the ink supply rolls and that can be operated by an operator.

Abstract: A burner assembly includes a plurality of burners for mixing fuel and air. Each of the plurality of burners includes: at least one fuel nozzle for injecting the fuel; and a mixing passage into which the fuel injected from the at least one fuel nozzle and the air are introduced. Each of the at least one fuel nozzle includes a protruding portion protruding upstream of an inlet of the mixing passage in a flow direction of the air. Each of the at least one fuel nozzle includes at least one fuel injection hole formed on a side surface of the protruding portion. A top surface of the protruding portion includes a convex curved surface.

Abstract: A tail pipe (50) comprises: a pipe (51); an acoustic attenuator (61) that forms an acoustic space (Ss) on the outer peripheral side of the pipe (51); and a cooling air jacket (65) that forms a cooling air space (Sa) isolated from the outer space (So), which is the space on the outer peripheral side of the pipe (51). The pipe (51) has: a first air flow path (56) that is formed between the outer peripheral surface (55o) and the inner peripheral surface (55i); and an acoustic hole (59) that penetrates from the acoustic space (Ss) to a combustion space (Sc), which is a space on the inner peripheral side of the pipe (51c). The first air flow path (56) has: an inlet (56i) that faces into the cooling air space (Sa) and guides the air in the cooling air space (Sa) into the first air flow path (56); and an outlet (56o) that faces into the acoustic space (Ss) and guides the air passing through the first air flow path (56) into the acoustic space (Ss).

Abstract: An impeller includes: main vanes which are provided in a front stage section of a hub so as to connect an outer surface of the front stage section and an inner surface of a shroud, and are arranged at intervals in a circumferential direction of the hub, wherein the main vanes generate an oblique flow of crude oil; and splitter vanes which are provided in a rear stage section of the hub so as to be connected to an outer surface of the rear stage section, and are arranged at intervals in the circumferential direction, wherein the splitter vanes generate an axial flow of the crude oil.

Abstract: A drone port is portable to be disposed on a landing surface for a drone and includes a covering section configured to cover the landing surface and provided with markers of different sizes. The covering section includes a restraining section configured to restrain the drone on the covering section. The restraining section includes a first hook-and-loop fastener disposed on the covering section. The first hook-and-loop fastener is configured to join with a second hook-and-loop fastener configured to be disposed on the drone.

Abstract: This shaft sealing device comprises: a housing that has a storage groove; a seal body stored in the storage groove; and a projected part that projects from one of the housing and the seal body toward the other in the storage groove in an axial direction. The seal body divides an annular space into a high-pressure region on a first side in the axial direction and a low-pressure region on a second side in the axial direction. The housing has a connection part that connects the low-pressure region with the inside of the storage groove. The projected part divides a portion between an opposite surface and a low-pressure-side lateral surface of the seal body into a first space on the radially outer side and a second space on the radially inner side. The connection part connects the first space with the low-pressure region.

Abstract: A fuel injector has a body extending in an axial direction. The body includes: an axial passage formed so as to extend in the axial direction; a radial passage formed so as to communicate at one end with the axial passage and to open at another end to an outer surface of the body; and an internal passage including a first opening and a second opening open to the outer surface, and formed so as to extend inside the body from the first opening to the second opening. The first opening and the second opening are located opposite to each other across a third opening, through which the radial passage opens to the outer surface, in a circumferential direction centered on an axis of the body.

Abstract: A turbine blade includes a blade part and an oscillator mounted on the blade part and configured to vibrate the blade part. The blade part may be formed with a hollow part, and the oscillator may be mounted inside the hollow part. The turbine blade may be a stator blade, and the blade part may include a blade and a blade ring supporting the blade.

Abstract: Provided is an electric compressor which comprises a housing, a compressor for compressing a refrigerant including lubricating oil, and a motor which rotationally drives the compressor, wherein: the motor comprises a stator, a rotor, a plurality of lead wires connected to a plurality of coil portions, and protecting tubes which are arranged in such a way as to surround the entire circumference of the lead wires, and which protect the lead wires from moisture contained in the lubricating oil, the lead wires are coated with a resin coating portion and are arranged in a circumferential direction around an axis; and the protecting tubes are arranged only in a protection area in a portion of the circumferential direction including an area in which the lead wires are immersed in the lubricating oil stored in an internal space of the housing.

Abstract: A heat exchanger for heat exchange between a first fluid and a second fluid is provided with: a body part which is an additive manufactured body and includes a first passage through which the first fluid flows and a second passage through which the second fluid flows; and a covering part attached to the body part. The body part has a first opening portion of the first passage and a second opening portion of the second passage, and the covering part is attached to the body part so as to cover exposure of the first opening portion and the second opening portion.