Abstract: A journal bearing includes a carrier ring, a plurality of bearing pads disposed on a radially inner side of a lower-half region of the carrier ring and configured to support a rotor shaft from below, and a pair of side plates disposed on both sides of the plurality of bearing pads with respect to an axial direction of the rotor shaft. Each of the side plates includes a first region including a circumferential range upstream of a first bearing pad positioned furthest upstream among the plurality of bearing pads, and a second region positioned upstream of the first region and has a larger distance between an inner peripheral surface of the side plate and an outer peripheral surface of the rotor shaft than that of the first region.

Abstract: A journal bearing includes: a carrier ring having a cylindrical shape: at least two bearing pads disposed on a radially inner side of the carrier ring and configured to support a rotor shaft; at least one oil-supply unit disposed on the radially inner side of the carrier ring, for supplying lubricant oil to a gap between the bearing pad and the rotor shaft; a pair of side plates disposed on both end portions of the carrier ring with respect to an axial direction, along an outer periphery of the rotor shaft; and at least one opening configured to bring a bearing interior space surrounded by the at least two bearing pads and the pair of side plates into communication with atmosphere, and discharge the lubricant oil to outside via the bearing interior space.

Abstract: A journal bearing includes: a carrier ring having an annular shape; a first bearing pad disposed on a radially inner side of a lower half region of the carrier ring and configured to support a rotor shaft from below; a first oil-supply unit disposed immediately before and upstream of the first bearing pad; a pair of side plates disposed on both end portions of the carrier ring with respect to an axial direction, along an outer periphery of the rotor shaft, Each of the side plates includes: a first region; and a second region which is positioned above the first region, and in which a gap between an inner peripheral surface of the side plate and an outer peripheral surface of the rotor shaft is narrower than that in the first region.

Abstract: A bearing device includes: a carrier ring; a first bearing portion disposed along an outer periphery of a rotor shaft on a radially inner side of the carrier ring; a second bearing portion disposed along the outer periphery of the rotor shaft and downstream of the first bearing portion, with respect to a rotational direction of the rotor shaft, on the radially inner side of the carrier ring; and a pair of side plates disposed along the outer periphery of the rotor shaft, on both sides of the carrier ring with respect to an axial direction. In a carrier-ring side region of an inner peripheral surface of each of the side plates, a groove extending in a circumferential direction along a side surface of the first bearing portion is formed at least in a part of an extending range of the first bearing portion.

Abstract: A journal bearing includes: a carrier ring; a plurality of bearing pads disposed on a radially inner side of a lower half region of the carrier ring; a pair of side plates disposed on both sides of the plurality of bearing pads with respect to an axial direction of the rotor shaft; and at least one oil-supply unit for supplying lubricant oil to the plurality of bearing pads. From among the at least one oil-supply unit, a first oil-supply unit disposed on a downstream side of a most downstream pad positioned most downstream of the plurality of bearing pads is configured to supply the lubricant oil toward a region below a corner portion of the most downstream pad, of a trailing edge surface of the most downstream pad, the corner portion being formed by an intersection between a pad surface of the most downstream pad and the trailing edge surface.

Abstract: A journal bearing includes: a carrier ring; a plurality of bearing pads disposed on a radially inner side of a lower half region of the carrier ring and configured to support a rotor shaft from below; a pair of side plates disposed on both sides of the plurality of bearing pads, with respect to an axial direction of the rotor shaft; and a dam disposed on a radially inner side of the carrier ring, in a downstream section of an upper half region of the carrier ring, and configured to suppress a downstream flow of carried-over oil. A gap is provided between inner peripheral surfaces of the respective side plates and an outer peripheral surface of the rotor shaft, for bringing into communication an outside and a bearing interior space surrounded by the pair of side plates.

Abstract: A journal bearing includes: a carrier ring; a plurality of bearing pads disposed on a radially inner side of a lower half region of the carrier ring, and configured to support a rotor shaft from below; and a guide metal disposed in an upper half region of the carrier ring, in center with respect to an axial direction of the rotor shaft, so as to cover an upper region of an outer peripheral surface of the rotor shaft.

Abstract: A journal bearing includes a carrier ring, a plurality of bearing pads disposed on a radially inner side of a lower-half region of the carrier ring and configured to support a rotor shaft from below, and a pair of side plates disposed on both sides of the plurality of bearing pads with respect to an axial direction of the rotor shaft. Each of the side plates includes a first region including a circumferential range upstream of a first bearing pad positioned furthest upstream among the plurality of bearing pads, and a second region positioned upstream of the first region and has a larger distance between an inner peripheral surface of the side plate and an outer peripheral surface of the rotor shaft than that of the first region.

Abstract: The turbine includes: a shaft body supported rotatably; a plurality of turbine blade members; a casing covering the shaft body and the turbine blade row; an outer ring member that is provided on an inner periphery of the casing and includes an inner peripheral portion in which a cross-section having a uneven shape is continuous in a circumferential direction; a plurality of turbine vane members that each has a shroud fitted into the inner peripheral portion of the outer ring member and a turbine vane main body extending from the shroud to a radially inward side; and a plate member that connects at least some of the plurality of turbine vane members and covers one side of the shrouds in the axial direction, thereby sealing a shroud gap formed between the shrouds adjacent to each other in the circumferential direction.

Abstract: The bearing device has a support ring positioned around a rotating shaft and a plurality of bearing pads provided between the rotating shaft and the support ring and configured to support the rotating shaft. Some of the plurality of bearing pads are positioned at a lower side of the rotating shaft, and a key member is installed between the support ring and a carrier ring supporting the plurality of bearing pads. The key member is inserted therebetween in a tangential direction of an outer circumference of the carrier ring and is configured to perform positioning of the plurality of bearing pads and the support ring in a radial direction.

Abstract: A bearing temperature monitoring device and bearing device provided with the monitoring device composed so that occurrence of scratch on the rotation shaft supported by the bearing caused by a bearing temperature carrying member integrated in the bearing such that its top end surface faces the rotation shaft, are provided.

Abstract: The bearing device is provided with: a support ring positioned around a rotating shaft; and a plurality of bearing pads provided between the rotating shaft and the support ring and configured to support the rotating shaft, wherein some of the plurality of bearing pads are positioned at a lower side of the rotating shaft, and a key member is installed between the support ring and a carrier ring supporting the plurality of bearing pads, wherein the key member is inserted therebetween in a tangential direction of an outer circumference of the carrier ring and is configured to perform positioning of the plurality of bearing pads and the support ring in a radial direction.

Abstract: The turbine includes: a shaft body supported rotatably; a plurality of turbine blade members; a casing covering the shaft body and the turbine blade row; an outer ring member that is provided on an inner periphery of the casing and includes an inner peripheral portion in which a cross-section having a uneven shape is continuous in a circumferential direction; a plurality of turbine vane members that each has a shroud fitted into the inner peripheral portion of the outer ring member and a turbine vane main body extending from the shroud to a radially inward side; and a plate member that connects at least some of the plurality of turbine vane members and covers one side of the shrouds in the axial direction, thereby sealing a shroud gap formed between the shrouds adjacent to each other in the circumferential direction.

Abstract: An oiling nozzle for a thrust bearing improves the following capability of pads and achieves a higher bearing pressure of the thrust bearing. The oiling nozzles are arranged between respective pads disposed in positions facing the thrust surface of a thrust collar that protrudes radially outward from a rotor shaft, along the circumferential direction. Each oiling nozzle has a cylindrical stem and a rectangular-shaped mainframe whose heightwise middle portions of opposite lateral sides are provided with convex parts. Each convex part presents a semicircular disk shape in a plane view to be fitted into concave parts that are formed in lateral sides of the pads. A top portion located on a side opposite to the stem is formed with a plurality of nozzle holes for ejecting lubricating oil that has been supplied from the bottom of the stem toward a space between the thrust collar and the pads.

Abstract: A journal bearing includes a bearing platform, a cylindrical bearing housing supported by the bearing platform via a plurality of load supporting members, a plurality of pads located swingable in the bearing housing so that a journal of a rotation shaft is supported by the pads, an oil supply mechanism for supplying oil to the bearing surfaces of the pads, and a connecting member which has an oil hole to communicate an oil supply passage in the bearing platform with an oil supply passage in the bearing housing so that oil is supplied from the bearing platform to the bearing surfaces of the pads. The connecting member carries a part of a bearing load exerted from the bearing housing, and is mounted such that the part of the bearing load carried by the connecting member is smaller than a bearing load carried by one of the load supporting members.

Abstract: A rotation shaft supporting structure has radial clearance between a bearing surface of an upper tilting pad and a rotating surface of the journal that can be adjusted so that a high pressure oil film is formed in the clearance and carryover of lubrication oil from an upstream pad to its adjacent downstream pad is prevented. Oil supply nozzles are mounted to the bearing housing to be located adjacent to the upstream and downstream side end of each bearing pad. An upstream side nozzle supplies lubrication oil to the bearing surface of the pad and a downstream side nozzle injects oil toward the journal surface to prevent carryover of lubrication oil from the bearing surface of the upstream pad to that of the downstream pad dragged by the rotating surface of the journal. The nozzles also serve as stoppers to prevent rotational movement of the pad.

Abstract: A bearing device (10) is provided with bearing pads (13) placed around a rotating shaft (3) to support a thrust collar (12) and carrier rings (15), each of which houses the bearing pads and is supported by a casing (20). And, a supported surface (15a) which is supported by the casing on the carrier ring is a curved surface which is raised at least along one direction orthogonal to the rotating shaft at a substantially constant curvature around the center of gravity (G) of the thrust collar.

Abstract: A journal bearing has a plurality of pad stops which include a first pad stop located at a most forward position in the rotation direction of the rotation shaft, and the pad stops other than the first pad stop function as oiling nozzles for releasing lubricating oil between the outer circumferential surface of the rotation shaft and the inner circumferential surfaces of the pads.

Abstract: A bearing temperature monitoring device and bearing device provided with the monitoring device composed so that occurrence of scratch on the rotation shaft supported by the bearing caused by a bearing temperature carrying member integrated in the bearing such that its top end surface faces the rotation shaft, are provided.

Abstract: To reduce the amount of lubricating oil released (supplied) between the outer circumferential surface of a rotation shaft and the inner circumferential surfaces of pads, so as to reduce the churning loss, and to reduce the bearing loss. The journal bearing comprises: a plurality of pads arranged radially inside a lower half-carrier ring at intervals, for receiving load from the rotation shaft; and a plurality of pad stops respectively arranged at the circumferentially opposite ends of the respective pads, for restraining circumferential movements of the respective pads, wherein, among these pad stops, the pad stops other than the pad stop located in the most forward position in the axial rotation direction of the rotation shaft have functions as oiling nozzles for releasing lubricating oil between the outer circumferential surface of the rotation shaft and the inner circumferential surfaces of the pads.