Abstract: A turbocharger includes a first housing configured to house a turbine impeller, a second housing configured to rotatably support a rotating shaft to which the turbine impeller is fixed, and a variable capacity mechanism configured to surround the turbine impeller and to guide a fluid to the turbine impeller. The variable capacity mechanism has a nozzle ring that faces the second housing. A first pin and a second pin extend between the second housing and the nozzle ring and are attached to one of the second housing and the nozzle ring. The other of the second housing and the nozzle ring is provided with a first guide in which an end portion of the first pin is disposed and a second guide in which an end portion of the second pin is disposed.

Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry is configured to acquire three-dimensional thermographic image data by imaging a subject irradiated with infrared rays. The processing circuitry is configured to acquire a plurality of items of projection data by imaging the subject with tomosynthesis. The processing circuitry is configured to execute reconstruction based on the plurality of items of projection data and the three-dimensional thermographic image data.

Abstract: A variable capacity turbocharger includes a housing, a turbine impeller at least partially located in the housing, a scroll flow path located in the housing and encircling the turbine impeller, a first nozzle ring and a second nozzle ring facing each other in the housing, a nozzle flow path located between the first nozzle ring and the second nozzle ring and fluidly coupling the scroll flow path to the turbine impeller, a gap formed between the first nozzle ring and the housing, and a bearing hole located in the first nozzle ring and including an opening adjacent to the gap. The gap is located on an opposite side of the first nozzle ring to the nozzle flow path. Additionally, the gap is connected to the scroll flow path.

Abstract: A turbocharger includes: an oil drainage path formed in a radial bearing support, one end of the oil drainage path being opened on at least one of a surface facing a thrust bearing and a surface facing a supported portion in the radial bearing support, the other end of the oil drainage path being opened on a bottom surface of the radial bearing support, an entire projected surface of the oil drainage path projected along a central axis thereof to an oil outlet being included within the oil outlet; and an oil drainage space provided between the thrust bearing and an impeller and connected to an oil chamber.

Abstract: A variable capacity turbocharger includes a nozzle flow path which allows a gas to pass from a scroll flow path toward a turbine impeller, a shroud side ring and a hub side ring which face each other in a rotation axis direction of the turbine impeller and form a nozzle flow path therebetween, a bearing hole which is provided in the shroud side ring, a bearing hole which is provided in the hub side ring, and a nozzle vane which is disposed in the nozzle flow path and is supported by both bearing holes. A center axis line of the bearing hole is located on the inside in a radial direction in relation to a center axis line of the bearing hole at a room temperature, and the center axis line is located on the outside in the radial direction in relation to the center axis line during operation.

Abstract: A motor rotor 11 includes: a holding portion 131 having a tubular shape, a first shaft 61 inserted into one side of the holding portion 131, a second shaft 62 inserted into the other side of the holding portion 131, a permanent magnet 14 provided between the first shaft 61 and the second shaft 62 inside the holding portion 131, and a partition wall portion 132 provided between the first shaft 61 and the second shaft 62 inside the holding portion 131. The partition wall portion 132 forms a rigid body, together with the holding portion 131, the first shaft 61, and the second shaft 62.

Abstract: An electric turbocharger includes: a thrust collar having a disk shape and provided to protrude in a flange shape around a rotation shaft between a compressor impeller and an electric motor; a thrust air bearing facing a compressor impeller-side surface of the thrust collar, and supporting the rotation shaft in a thrust direction; a thrust air bearing facing an electric motor-side surface of the thrust collar, and supporting the rotation shaft in the thrust direction; a bearing space which is interposed between the thrust air bearings and in which the thrust collar is accommodated; and a labyrinth seal portion provided along an outer peripheral surface of the thrust collar, and partitioning the bearing space into a first region on a compressor impeller side and a second region on an electric motor side.

Abstract: A turbocharger includes a variable nozzle unit, a bearing housing, a circular heat shield plate located between a turbine impeller and the bearing housing, and a water chamber formed in the bearing housing. The heat shield plate is fixed by being pressed against the variable nozzle unit by a disc spring and is radially aligned by being fitted into the bearing housing by a fitting portion. The heat shield plate includes a fitting surface formed in the fitting portion and an inner peripheral heat shield portion projecting radially inward from the fitting surface and located with an axial gap between the inner peripheral heat shield portion and the bearing housing. At least a part of the water chamber exists at the same radial position as a radial position of the fitting portion.

Abstract: A turbocharger includes a bearing housing, a variable displacement mechanism, and a restricting member. The variable displacement mechanism includes a nozzle ring and a drive ring. The restricting member includes a flange part, a drive ring guide pin part, and a phase determining pin part. The flange part straddles a first surface of the nozzle ring facing the bearing housing and a second surface of the drive ring facing the bearing housing so that a position thereof with respect to the nozzle ring is fixed. The drive ring guide pin part is formed integrally with the flange part and disposed in a first hole formed on the first surface. The phase determining pin part is formed integrally with the flange part and disposed in a second hole formed on a third surface of the bearing housing facing the variable displacement mechanism.

Abstract: A variable capacity turbocharger includes a housing, a turbine impeller at least partially located in the housing, a scroll flow path located in the housing and encircling the turbine impeller, a first nozzle ring and a second nozzle ring facing each other in the housing, a nozzle flow path located between the first nozzle ring and the second nozzle ring and fluidly coupling the scroll flow path to the turbine impeller, a gap formed between the first nozzle ring and the housing, and a bearing hole located in the first nozzle ring and including an opening adjacent to the gap. The gap is located on an opposite side of the first nozzle ring to the nozzle flow path. Additionally, the gap is connected to the scroll flow path.

Abstract: A turbocharger includes a first housing configured to house a turbine impeller, a second housing configured to rotatably support a rotating shaft to which the turbine impeller is fixed, and a variable capacity mechanism configured to surround the turbine impeller and to guide a fluid to the turbine impeller. The variable capacity mechanism has a nozzle ring that faces the second housing. A first pin and a second pin extend between the second housing and the nozzle ring and are attached to one of the second housing and the nozzle ring. The other of the second housing and the nozzle ring is provided with a first guide in which an end portion of the first pin is disposed and a second guide in which an end portion of the second pin is disposed.

Abstract: A variable capacity turbocharger includes a variable nozzle unit having a shroud-side ring in which a first bearing hole is provided, a hub-side ring in which a second bearing hole is provided, a nozzle flow path formed between the shroud-side ring and the hub-side ring, and a nozzle vane disposed in the nozzle flow path and supported by both the first bearing hole and the second bearing hole. A turbine housing having a scroll flow path is connected to the nozzle flow path, in which the first bearing hole penetrates the shroud-side ring and communicates with the scroll flow path through a gap between the shroud-side ring and the turbine housing. Additionally, an opening of the first bearing hole on the gap side is smaller than an opening of the first bearing hole on the nozzle flow path side.

Abstract: A variable capacity turbocharger includes: a nozzle flow path which allows a gas to pass from a scroll flow path toward a turbine impeller; a shroud side ring and a hub side ring which face each other in a rotation axis direction of the turbine impeller and form a nozzle flow path therebetween; a bearing hole which is provided in the shroud side ring; a bearing hole which is provided in the hub side ring; and a nozzle vane which is disposed in the nozzle flow path and is supported by both bearing holes, wherein a center axis line of the bearing hole is located on the inside in a radial direction in relation to a center axis line of the bearing hole at a room temperature and the center axis line is located on the outside in the radial direction in relation to the center axis line when a predetermined temperature difference is generated between the shroud side ring and the hub side ring during operation.

Abstract: A turbocharger includes: an oil drainage path formed in a radial bearing support, one end of the oil drainage path being opened on at least one of a surface facing a thrust bearing and a surface facing a supported portion in the radial bearing support, the other end of the oil drainage path being opened on a bottom surface of the radial bearing support, an entire projected surface of the oil drainage path projected along a central axis thereof to an oil outlet being included within the oil outlet; and an oil drainage space provided between the thrust bearing and an impeller and connected to an oil chamber.

Abstract: A variable capacity turbocharger includes a variable nozzle unit having a shroud-side ring in which a first bearing hole is provided, a hub-side ring in which a second bearing hole is provided, a nozzle flow path formed between the shroud-side ring and the hub-side ring, and a nozzle vane disposed in the nozzle flow path and supported by both the first bearing hole and the second bearing hole. A turbine housing having a scroll flow path is connected to the nozzle flow path, in which the first bearing hole penetrates the shroud-side ring and communicates with the scroll flow path through a gap between the shroud-side ring and the turbine housing. Additionally, an opening of the first bearing hole on the gap side is smaller than an opening of the first bearing hole on the nozzle flow path side.

Abstract: A turbocharger includes a turbine housing configured to accommodate a turbine wheel provided at one end of a rotation shaft, a bearing housing joined to the turbine housing and in which a bearing for supporting the rotation shaft is provided; and a variable nozzle unit that is disposed between the turbine housing and the bearing housing. The variable nozzle unit includes a nozzle ring disposed around a rotation axis of the rotation shaft and a support ring provided adjacent to the nozzle ring that includes an outer peripheral portion partially in contact with the turbine housing. One or more non-contact portions are formed in the outer peripheral portion of the support ring and do not contact the turbine housing.

Abstract: A turbocharger includes a variable nozzle unit, a bearing housing, a circular heat shield plate located between a turbine impeller and the bearing housing, and a water chamber formed in the bearing housing. The heat shield plate is fixed by being pressed against the variable nozzle unit by a disc spring and is radially aligned by being fitted into the bearing housing by a fitting portion. The heat shield plate includes a fitting surface formed in the fitting portion and an inner peripheral heat shield portion projecting radially inward from the fitting surface and located with an axial gap between the inner peripheral heat shield portion and the bearing housing. At least a part of the water chamber exists at the same radial position as a radial position of the fitting portion.

Abstract: A turbocharger includes a turbine housing configured to accommodate a turbine wheel provided at one end of a rotation shaft, a bearing housing joined to the turbine housing and in which a bearing for supporting the rotation shaft is provided; and a variable nozzle unit that is disposed between the turbine housing and the bearing housing. The variable nozzle unit includes a nozzle ring disposed around a rotation axis of the rotation shaft and a support ring provided adjacent to the nozzle ring that includes an outer peripheral portion partially in contact with the turbine housing. One or more non-contact portions are formed in the outer peripheral portion of the support ring and do not contact the turbine housing.

Abstract: A seal structure for a turbocharger, including: a seal ring; a seal groove in which the seal ring is disposed; and a treated portion, which is formed at least at a part of one or both of the seal ring and the seal groove, and is subjected to surface treatment for anti-oxidation.

Abstract: The present invention provides a non-cyanide based Au—Sn alloy plating solution capable of performing a Au—Sn alloy plating treatment by a plating solution composition that is neutral and does not contain cyanide. In the present invention, a non-cyanide soluble gold salt, a Sn compound composed of tetravalent Sn, and a thiocarboxylic acid-based compound are contained. The non-cyanide based Au—Sn alloy plating solution of the present invention can further contain sugar alcohols, and, in addition, can further contain a dithioalkyl compound.