Abstract: In a controller that operates a control program which executes sequence control or the like together with a data processing program which executes a complex arithmetic operation or the like, I/O resource information is shared with a shared memory, and an access right to the I/O resource information by the data processing program is controlled using read-in prohibited information and write-in permitted information.

Abstract: A package-type compressor includes a body unit, a controller, a casing, a first cooling air inlet, a second cooling air inlet, a cooling air outlet, a fan duct, a cooling fan, an air cooling type heat exchanger, a machine chamber, and a cooling duct. The cooling duct is provided below the fan duct, the cooling duct causing the cooling air taken in at the second cooling air inlet to flow along the controller toward the suction port of the fan duct. A vertical projection plane of the cooling fan overlaps the machine chamber and the cooling duct.

Abstract: A scroll compressor includes a rotor, a stator, a rotary shaft, an end bracket, an orbiting scroll, a fixed scroll, a suction type cooling fan, and a discharge brush. The discharge brush is fixed to the end bracket facing the cooling fan by a fixing member attached in a radial direction relative to the rotary shaft, and one end of which is in contact with the rotary shaft, in a space secured by the clearance.

Abstract: In a first transfer station, a second transfer station, and a third transfer station, a plurality of sample containers are transferred while being stored from a transfer source rack to a transfer destination rack row. In this case, for each of the sample containers to be a transfer target, a specific transfer destination rack is selected from the transfer destination rack row based on a content of processing to be applied in the future to a sample within the sample container.

Abstract: A power conversion device includes an AC conversion unit; a detector that detects an output current, a DC voltage, and a temperature; an I/O unit; and a control unit. The control unit includes a motor control unit that controls the AC conversion unit; an operation instruction/parameter setting unit that converts an operation instruction and a parameter; an information management unit; an I/O control unit; and a detection unit that acquires data of the detector. The operation instruction/parameter setting unit outputs the set parameter and characteristic data to the information management unit, which acquires parameter information associated with the operation instruction and parameter information for an operation instruction change quantity required for adjustment from an information server.

Abstract: A technique is provided that can further reduce power at the time of “unload operation control” in a gas compressor that generates a compressed gas at a set pressure by constant-speed control. The gas compressor includes a compressor main unit, a drive source, an intake throttle valve, a gas release valve, rotation speed converting means, a pressure detecting device that detects a discharge pressure, and a controller that, the relationship between an upper-limit pressure H and a lower-limit pressure L being H>L, carries out opening the intake throttle valve and closing the gas release valve and operating the drive source at a full-load rotation speed until the discharge pressure reaches the upper-limit pressure H. The controller carries out at least one of closing the intake throttle valve and opening the gas release valve to reduce the discharge pressure to within a predetermined range when the discharge pressure reaches the upper-limit pressure H.

Abstract: A power conversion device includes a function of improving safety of a system by making a dynamical setting for a safety function operation at a time of detecting an abnormality in a system operation or a diagnosis error in accordance with a condition of the system at a time of the abnormality. A power conversion system includes a power conversion device main body configured to drive a motor and a safety function unit configured to execute a safety function. The safety function unit outputs a safety function operation instruction signal when receiving a safety request signal, and the power conversion device main body controls the motor by the safety function operation instruction signal. The safety function unit monitors a state of the motor, and, in a case where the state of the motor exceeds a predetermined range, executes a threshold-value-excess post-process by a safety function operation selected in advance.

Abstract: A scroll fluid machine includes a main body and a motor unit. The main body unit configured to compress a fluid. The motor unit configured to drive the main body unit. The main body unit and the motor unit are connected via the eccentric portion. The main body casing and the motor cover are fastened with a fastening member. The motor unit includes a main bearing that is fixed to an inside of the motor cover by a flange. The main bearing is configured to support the shaft and is located between the flange and an end bracket on an opposite side of the main body unit with respect to the flange.

Abstract: A power conversion device includes a harmonic voltage generation unit that superimposes dc-axis and qc-axis harmonic voltages on dc-axis and qc-axis voltage commands in accordance with a switching signal; and an inductance estimation unit that estimates dc-axis inductance and qc-axis inductance on a basis of dc-axis and qc-axis harmonic currents, amplitude values of the harmonic voltages, and the switching signal.

Abstract: A screw compressor includes a screw rotor, a casing, and a delivery side shaft sealing unit. The delivery side shaft sealing unit includes an annular groove, a seal ring, and a shaft sealing fluid supply passage. Pressure of the fluid that is supplied to the one side, in the axial direction, of the seal ring via the shaft sealing fluid supply passage is set higher than pressure that acts on a first side surface, in an axial direction with respect to a first side wall surface of the annular groove, of the seal ring.

Abstract: A power conversion apparatus controls a load apparatus by position sensorless vector control. The power conversion apparatus includes: a current detection unit configured to detect a current passing through the load apparatus; a current detection arithmetic unit configured to calculate a harmonic current component on a dc-axis as a control axis and a harmonic current component on a qc-axis, based on the detected current; a saliency ratio estimation unit configured to output a saliency ratio estimated value based on the harmonic current component on the dc-axis and the harmonic current component on the qc-axis; and a saliency ratio control unit configured to output a current component that increases or decreases a current command value on a d-axis of a rotor coordinate system, based on a deviation between the saliency ratio estimated value and a predetermined saliency ratio.

Abstract: A resonance type power supply device includes: a power supply main circuit having a transformer, a resonance element connected on a primary side of the transformer, and a plurality of switching elements connected to the resonance element; and a power supply control circuit switching the plurality of switching elements in the power supply main circuit with a predetermined switching frequency, in which the power supply control circuit includes: a voltage controller outputting a current command value from a reference voltage, an output voltage of the power supply main circuit, and a voltage control gain; a current controller calculating a reference current, a current flowing on a secondary side of the transformer, and a current control gain; a gain calculator outputting the voltage control gain and the current control gain; and a control signal generator controlling the plurality of switching elements based on the switching frequency outputted by the current controller, and the gain calculator outputs the voltag

Abstract: The invention prevents a decrease in strength of a screw rotor including a hollow portion and improves cooling performance.

Abstract: An object of the present invention is to provide a rotary displacement compressor capable of determining whether a check valve has failed, and preventing the life of a compressor body from being reduced when a compression operation stops. In order to achieve the object, a rotary displacement compressor includes a compressor body that compresses a medium by reducing a volume of the medium using rotation; a discharge pipe through which a compressed medium, which is discharged through a discharge port of the compressor body, flows; a check valve that shuts off the compressed medium flowing backward to the compressor body; and a backflow control valve that allows a predetermined rate of the compressed medium to flow backward. The check valve and the backflow control valve are disposed in series via the discharge pipe.

Abstract: A control apparatus where control programs and information programs coexist is allowed to change programs flexibly. The control programs and information programs are installed in the control apparatus, which is provided with a shared area. The shared area is an area that at least one control program and at least one information program can access. Shared information is stored in the shared area. The shared information includes at least one of information related to an I/O port accessed by the control programs, and information related to the control program. Each control program is a program that performs scan operation of outputting control information on the relevant control object apparatus coupled to the I/O port accessed for controlling a control object apparatus with respect to the control program, to this I/O port. Each information program is a program that performs information processing that does not include the scan operation.

Abstract: A power-conversion device and a ground-fault-location-diagnosis method for determining ground-fault locations on a motor and a cable are disclosed. The power-conversion device includes a ground-fault-current-measurement unit, an interphase short-circuit current-measurement unit, and a ground-fault-location-determination unit. The ground-fault-current-measurement unit turns on all switches of either upper arms or lower arms of three half-bridge circuits, and measures output current values of a plurality of phases generated during the ON period. The interphase short-circuit-current-measurement unit turns on a switch of an upper arm of one phase of the three half-bridge circuits and a switch of a lower arm of a phase different from the one phase, and measures output current values of a plurality of phases generated during a period of time both switches are ON.

Abstract: A scroll-type fluid machine includes a fixed scroll, an orbiting scroll, a drive shaft, a cooling fan, and a cooling air duct. In a bent portion, immediately adjacent to the cooling fan, where a direction of the cooling air duct is changed from a direction perpendicular to the drive shaft to a direction of the drive shaft, a part of an outer peripheral wall which is distant from the drive shaft is planar and defines a plane which intersects a plane perpendicular to the drive shaft at an obtuse angle. With this configuration, a main stream of the cooling air is prevented from separating from an inner peripheral wall of the bent portion.

Abstract: There is provided an isolator that is capable of improving work efficiency by shortening a sterilization time, and that is capable of securing a sterility assurance level. An isolator, in which a circulation fan above a work room supplies clean air to the work room via a HEPA filter, includes: the work room; a front door provided in a front surface of the work room; a glove provided in the front door; and an air supply unit that causes an air supply HEPA filter to clean air taken in from an air supply airtight damper, and that causes an air supply fan to supply the clean air into the isolator, when work is performed. When a sterilization gas is removed, the air supply unit is configured such that the air supply fan circulates the air inside the isolator through a sterilization gas-removing catalyst.

Abstract: To realize high-quality printing with less printing distortion by reducing an influence of a Coulomb force that acts between ink particles which are ejected in an inkjet recording device. The inkjet recording device is configured to charge ink particles ejected from a nozzle, deflect the charged ink particles, and print a character in a shape of an object to be printed. In the inkjet recording device, dots of each column of the character to be printed are divided into a plurality of blocks in a column direction. In addition, charging voltage data in which the order of the ink particles corresponding to the dots is switched in the divided block unit is stored, and a predetermined charging voltage is applied to the charging electrode on the basis of the charging voltage data.

Abstract: Provided is a liquid supply mechanism including: a plurality of liquid supply sections each including a plurality of branch paths whose central axes intersect with each other, and a supply path having a side surface to which the plurality of branch paths of the plurality of liquid supply sections are directly connected, respectively, and supplying liquid, which is supplied from an upstream, to the branch paths.