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公开(公告)号：US20220316523A1
公开(公告)日：2022-10-06
申请号：US17695233
申请日：2022-03-15
摘要： A fluid film bearing includes a plurality of bearing pads that are arranged in a circumferential direction of a rotating body that rotates about an axis, and that support the rotating body via a fluid film, wherein the bearing pad includes a base layer made of metal, an elastic layer that is layered on the rotating body side of the base layer, and that is made of an elastically deformable elastic material, a sliding layer that is layered on the rotating body side of the elastic layer, and that opposes the rotating body and is made of a bearing material, and a metal plate that is layered between the elastic layer and the sliding layer, and that is more rigid than the elastic layer and the sliding layer.
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公开(公告)号：US20200378224A1
公开(公告)日：2020-12-03
申请号：US16793238
申请日：2020-02-18
摘要： An oil field pump is installed within a pipe that connects to an oil field, and feeds accumulated extraction oil in a predetermined direction, the oil field pump including a rotor formed with an internal flow path for the extraction oil, a stator mounted on the outer circumference of the rotor, a thrust bearing that supports the axial weight of the rotor and the stator, and a supply pipe that supplies a portion of the extraction oil from the center side in the rotational direction of the flow path to the thrust bearing.
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公开(公告)号：US20230407916A1
公开(公告)日：2023-12-21
申请号：US18033478
申请日：2022-03-07
IPC分类号： F16C33/10
CPC分类号： F16C33/1045 , F16C33/106
摘要： A bearing device includes a plurality of bearing pads tiltably supporting a rotation shaft which rotates about an axial line, from the outer circumferential side of the rotation shaft, the bearing pads being spaced apart along the circumferential direction; and an oil supply part that supplies oil between the outer circumferential surface of the rotation shaft and pad surfaces of the bearing pads which face the rotation shaft. The plurality of bearing pads include a first bearing pad that supports the rotation shaft directly below the axial line, and a pair of second bearing pads which sandwich the first bearing pad from the rotation direction. Among the first bearing pad and the second bearing pads, a groove is formed only on the pad surfaces of the second bearing pads so as to extend in the rotation direction.
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公开(公告)号：US20230213060A1
公开(公告)日：2023-07-06
申请号：US17927814
申请日：2021-04-13
IPC分类号： F16C17/03
CPC分类号： F16C17/035
摘要： Provided are a journal bearing and a rotary machine, including: a housing that has an annular shape and is disposed around a rotating shaft; a plurality of bearing pads that are disposed between the housing and the rotating shaft to be spaced from each other at predetermined intervals in the circumferential direction of the housing; and a support that supports at least one end of each bearing pad in the axial direction of the rotating shaft to allow the each bearing pad to swing in the housing about an axis serving as a fulcrum in parallel to the axial direction.
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公开(公告)号：US20200378226A1
公开(公告)日：2020-12-03
申请号：US16794389
申请日：2020-02-19
IPC分类号： E21B43/12 , F04D13/08 , F04D29/046 , H02K7/08
摘要： An oil field pump installed within a pipe that connects to an oil field, feeds accumulated extraction oil in a predetermined direction and includes a rotor, a stator mounted on the outer circumference of the rotor, a flow path for flow of the extraction oil connecting an area formed within the rotor to an area formed between the rotor and the stator, a thrust bearing that supports the axial weight of the rotor and the stator, and a supply pipe that supplies a portion of the extraction oil in the flow path to the thrust bearing. The thrust bearing includes a protrusion part fixed to the outer circumference of the rotor and rotating as one piece with the rotor, and a facing part fixed to the stator and facing opposite a surface in the axial direction of the protrusion.
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公开(公告)号：US20200378397A1
公开(公告)日：2020-12-03
申请号：US16794368
申请日：2020-02-19
发明人： Rimpei KAWASHITA , Shimpei YOKOYAMA
IPC分类号： F04D29/18 , F04D29/046 , E21B43/12
摘要： An oil field pump installed within a pipe that connects to an oil field, and feeds accumulated extraction oil in a predetermined direction, the oil field pump including a rotor with an impeller, a stator installed on the outer circumferential of the rotor and that forms a flow path for passing the extraction oil between the stator and the rotor and that includes a diffuser on the downstream side of the impeller, a static pressure bearing device installed between the rotor and the stator and that supports the load in the radial direction, and a supply flow path that supplies, to the static pressure bearing device, a portion of the extraction oil flowing along the inner side in the radial direction of the path.
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公开(公告)号：US20190277338A1
公开(公告)日：2019-09-12
申请号：US16292688
申请日：2019-03-05
摘要： A pad bearing includes a pad disposed on a radially outer side of a rotary shaft and supporting the rotary shaft so as to be rotatable around an axis, a block-shaped nozzle member disposed on an upstream side with respect to the pad on the radially outer side of the rotary shaft and including a discharge hole for discharging a lubricant toward an outer peripheral surface of the rotary shaft, and a compressed flow forming unit disposed in at least one of the pad and the nozzle member and configured to compress a flow of the lubricant flowing along the outer peripheral surface of the rotary shaft as the rotary shaft rotates.
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公开(公告)号：US20200378225A1
公开(公告)日：2020-12-03
申请号：US16793386
申请日：2020-02-18
摘要： An oil field pump is installed within a pipe that connects to an oil field, and feeds accumulated extraction oil in a predetermined direction, the oil filed pump including a rotor with an internal flow path for the extraction oil, a stator installed on the outer circumference of the rotor, a thrust bearing that supports the axial weight of the rotor and the stator, a supply pipe that supplies a portion of the extraction oil in the flow path to the thrust bearing, and a filter that is installed at further upstream on the flow path than the supply pipe along the flow direction of the extraction oil, and traps foreign matter.
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公开(公告)号：US20200263735A1
公开(公告)日：2020-08-20
申请号：US16775460
申请日：2020-01-29
IPC分类号： F16C33/66
摘要： An oil bath type bearing device which supports a rotating shaft rotating around an axis the bearing device is provided. The oil bath type bearing device includes a plurality of bearing pads which are arranged at intervals in a circumferential direction along an outer peripheral surface of the rotating shaft, an annular carrier ring which supports the plurality of bearing pads from an outer peripheral side and in which an oil supply hole through which a lubricant is supplied is formed, and a casing which covers the carrier ring from the outer peripheral side and holds the lubricant between the rotating shaft and the casing. The oil supply hole penetrate the carrier ring from the outer peripheral side to an inner peripheral side and extends toward a rear side in a rotational direction of the rotating shaft as the oil supply hole goes radially inward with respect to the axis.
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