Abstract: A displacer assembly includes a first displacer including a first displacer lower lid portion and extending along a displacer center axis, a second displacer including a second displacer upper lid portion and disposed so that the second displacer upper lid portion is adjacent to the first displacer lower lid portion along the displacer center axis, and a cross-shaped connector including a first connector pin and a second connector pin, and connecting the second displacer upper lid portion to the first displacer lower lid portion so that the second displacer is inclinable forward, rearward, rightward, and leftward with respect to the first displacer.

Abstract: There is provided a gear device including an input shaft to which power is input, an internal gear, and an external gear. The input shaft has an input shaft hollow portion that extends in an axial direction, and an internal gear portion that meshes with an input pinion to be rotationally driven. The internal gear portion is configured so that the input pinion internally meshing with the internal gear portion and the input shaft hollow portion do not overlap each other when viewed in the axial direction.

Abstract: A cryocooler includes an expansion chamber, a cooling stage thermally coupled to the expansion chamber, the cooling stage including a first heat transfer block provided with a surface exposed to the expansion chamber and a first heat exchange surface disposed outside the expansion chamber and a second heat transfer block provided with a second heat exchange surface facing the first heat exchange surface, a refrigerant supply port installed in the cooling stage outside the expansion chamber, a refrigerant discharge port installed in the cooling stage outside the expansion chamber, and a refrigerant path fluidically separated from the expansion chamber, the refrigerant path being formed between the first heat transfer block and the second heat transfer block such that a refrigerant flows from the refrigerant supply port to the refrigerant discharge port along the first heat exchange surface and the second heat exchange surface.

Abstract: In order to provide, to a roll-to-roll printing apparatus which seamlessly performs printing on a base material using a roll-to-roll method, performance for finely controlling the tension of the base material, the roll-to-roll printing apparatus includes a drive roll (74) that supplies a base material (B) to a plate cylinder, a drive roll actuator that rotates the drive roll (74), a dancer actuator (84) that changes a path line length of the base material (B) to vary the tension of the base material (B), a tension detection device (78) that detects the tension of the base material (B), and a tension control device (80) that controls the drive roll actuator and the dancer actuator (84) in accordance with a result of the detection by the tension detection device (78) to compensate for a variation in the tension of the base material (B).

Abstract: A failure diagnosis system includes a sensor that detects diagnosis target information of a diagnosis target device; a setting portion that sets a type of a determination value based on the diagnosis target information to be used for determination of whether an abnormality occurs in the diagnosis target device; and a diagnosis unit including a determination portion that determines whether the abnormality occurs in the diagnosis target device on the basis of the determination value of the type set by the setting portion. The diagnosis unit includes a first interface that outputs a determination result in the determination portion to a first external device, and a second interface that outputs a determination value of a type that is not set by the setting portion in addition to the determination value of the type set by the setting portion to a second external device.

Abstract: A first-stage regenerator material and a second-stage regenerator material are regenerator materials each having a laminated structure for use in a GM refrigerator. Each layer of the regenerator material is provided with a plurality of holes to allow gas to pass therethrough along a laminating direction. At least one layer includes a base material and a coating covering the base material. Volumetric specific heat of the coating is larger than volumetric specific heat of the base material in a temperature range from 20 K to 40 K.

Abstract: A pulse tube cryocooler which includes a pulse tube having a pulse tube high-temperature end and a pulse tube low-temperature end, and extending in an axial direction from the pulse tube high-temperature end to the pulse tube low-temperature end. The pulse tube cryocooler further includes a regenerator having a regenerator high-temperature end and a regenerator low-temperature end, and being disposed rowed alongside the pulse tube, with the regenerator high-temperature end being positioned displaced, in terms of the axial direction, from the pulse tube high-temperature end toward the cryocooler low-temperature side, and the regenerator low-temperature end being fluid-passage linked with the pulse tube low-temperature end and a pressure-switching valve for connecting the regenerator high-temperature end to a high-pressure source and to a low-pressure source in alternation, and being disposed between the pulse tube high-temperature end and the regenerator high-temperature end in terms of the axial direction.

Abstract: A compressor system for a cryocooler includes a compressor unit that includes a compressor main body compressing a refrigerant gas of the cryocooler and a liquid-cooled heat exchanger cooling, through heat exchange with a cooling liquid, at least one of the refrigerant gas compressed by the compressor main body and an oil lubricating the compressor main body, a supply line through which the cooling liquid is supplied from a main chiller to the liquid-cooled heat exchanger, a collecting line through which the cooling liquid is collected from the liquid-cooled heat exchanger to the main chiller, and a backup chiller that is provided outside the compressor unit, circulates the cooling liquid to the liquid-cooled heat exchanger in place of or together with the main chiller, and includes a circulation pump and a cooler cooling the cooling liquid on an inlet side or outlet side of the pump

Abstract: A superconducting magnet device includes compressor that compresses a refrigerant gas; a refrigerator that expands the refrigerant gas to generate coldness; a superconducting coil cooled by the refrigerator; a vacuum chamber that houses the superconducting coil; an electrode for a coil that is connected to the superconducting coil and disposed in the outside of the vacuum chamber; a heater that heats the electrode for a coil; a power supply line that connects the compressor and the refrigerator to each other and supplies electrical power from the compressor to the refrigerator; and a branch line that is branched from the power supply line to supply electrical power to the heater.

Abstract: Provided is a cryocooler configured to be mountable on a vacuum container to cool a liquid refrigerant container. The cryocooler includes an attachment flange forming a refrigerant gas chamber between a mounting port of the vacuum container and the attachment flange when the cryocooler is mounted on the mounting port, and movable in a detachment direction by raising a pressure of the refrigerant gas chamber, and a cooling stage cooling an object to be cooled disposed inside the vacuum container and movable from a cooling position in contact with the object to be cooled to a non-cooling position separated from the object to be cooled in response to a movement of the attachment flange in the detachment direction. The refrigerant gas chamber is connected to the liquid refrigerant container.

Abstract: A pulse tube refrigerating machine enables maintenance of an orifice while circulation of refrigerant gas within individual components is allowed, thus reducing the time required for maintenance. A compressor delivers a refrigerant gas having a high pressure and sucks the refrigerant gas having a low pressure. A cold head including a regenerator tube through which the refrigerant gas circulates and a pulse tube is connected to a housing. The flow of the refrigerant gas is controlled by one or more orifices, which are disposed outside the housing. The compressor, the housing, and the orifices are coupled via tubing. A coupling unit is disposed at both ends of at least one of the orifices. The coupling unit has a structure such that it can be split while the refrigerant gas is retained within the tubing. When the coupling unit is split, a detachable unit portion including the orifice is isolated.

Abstract: A flexible connection pipe for a cryocooler includes a connection hose that includes a flexible pipe which is provided with a pipe end portion and a flexible tube which is provided with a tube end portion coming into close contact with the pipe end portion and which is inserted into the flexible pipe and a connection adapter that connects the connection hose to a constituent element of the cryocooler, the connection adapter being adjacent to the tube end portion and being fixed to the pipe end portion.

Abstract: A construction machine work management system including a construction machine, an aircraft equipped with a camera, and a management device is provided. The construction machine work management system includes a processor configured to execute a program stored in a memory to implement processes of specifying a progress region within a work site on which work progress has been made by the construction machine, and setting up a flight path of the aircraft so that the camera of the aircraft can capture an image of the progress region.

Abstract: A bending meshing type gear device includes a wave generator, an external gear which is bent and deformed by the wave generator, and an internal gear which meshes with the external gear, in which one gear of the external gear and the internal gear is formed of a resin, the other gear of the external gear and the internal gear is formed of a high thermal conductivity material having a thermal conductivity higher than that of the resin and wear resistance higher than that of the resin, and a tooth thickness of the one gear is larger than a tooth thickness of the other gear in a meshing range between the external gear and the internal gear.

Abstract: A power transmission device having a motor which includes a stator around which a coil is wound, a motor frame which covers the stator, and a cover which covers an axial end portion of the motor frame. In addition, the cover is formed of a non-conductive material, and a shortest creeping distance between a coil end of the coil and the cover is shorter than 6.3 mm.

Abstract: A cryopump includes: a first-stage target temperature selection unit which includes a normal target temperature for a normal mode of maintaining each of a first stage cryopanel and a second stage cryopanel at an extremely low temperature region, and a cool-down target temperature lower than the normal target temperature, for a cool-down mode of cooling each of the first stage cryopanel and the second stage cryopanel from room temperature to the extremely low temperature region, and selects the normal target temperature as a first-stage target temperature in a case where a current operation mode is the normal mode, and at least temporarily selects the cool-down target temperature as the first-stage target temperature in a case where the current operation mode is the cool-down mode; and a first-stage temperature control unit which controls a first-stage cryopanel temperature according to the selected first-stage target temperature.

Abstract: A planetary gear device includes: a first internal gear and a second internal gear, a first external gear which meshes with the first internal gear, a second external gear which meshes with the second internal gear, and an eccentric body which circumferentially moves the first external gear and the second external gear. The first external gear and the second external gear each independently have external teeth and are connected to each other to integrally rotate with each other, the first internal gear and the second internal gear each independently have internal teeth, one of the first internal gear and the second internal gear is connected to a stationary side, and the other thereof is connected to an output side, and each of the first internal gear and the second internal gear has internal teeth which are constituted by a support body, and a rotating body rotatable to the support body.

Abstract: In a cryocooler for developing coldness of 4 K or lower by expanding helium, an expander expands high-pressure helium. A compressor compresses low-pressure helium returned from the expander, to generate high-pressure helium, and supplies the high-pressure helium to the expander. When helium temperature in the expander is 2.17 K or lower, the pressure of the low-pressure helium is equal to or higher than pressure given by a curve, in a helium state diagram in which the horizontal axis is temperature and the vertical axis is pressure, along which helium's volumetric thermal expansion coefficient is 0.

Abstract: An image display apparatus for a shovel that includes a lower-part traveling body, an upper-part turning body turnably placed on the lower-part traveling body, and an attachment mounted on the upper-part turning body, and performs work in a work area by driving the attachment, includes an image display part configured to display the work area to be subjected to the work. An image of the work area captured with an image capturing device is subjected to image processing to add and indicate a distribution of depressions and elevations of the work area, and is displayed on the image display part.

Abstract: A control apparatus of a web processing system that executes predetermined processing onto a web continuously existing along a movement passage, in which the web processing system includes a rotating body that rotates while being in contact with the web, and the control apparatus controls a rotation speed of the rotating body such that a circumferential speed of the rotating body at a contact surface with the web matches a transport speed of the web.