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公开(公告)号：US10907681B2
公开(公告)日：2021-02-02
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：US11193528B2
公开(公告)日：2021-12-07
申请号：US16494434
申请日：2018-02-01
发明人： Chihiro Yoshimine , Tanehiro Shinohara , Tadasuke Nishioka , Shimpei Yokoyama , Takuzo Shigihara
摘要： A bearing pad for a tilting-pad bearing includes a first member having a bearing surface and a second member disposed on a back surface side of the first member. At least one of a back surface of the first member or a front surface of the second member facing the back surface of the first member has a recess for forming a cavity between the first member and the second member. Preferably, the bearing pad further includes a support member disposed on a back surface side of the second member and tiltably supporting the first member and the second member, and the recess is formed over at least a part of an installation range of the support member in a plan view of the bearing pad.
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公开(公告)号：US11795997B2
公开(公告)日：2023-10-24
申请号：US17695233
申请日：2022-03-15
CPC分类号： F16C17/065 , F16C17/14 , F16C27/02 , F16C33/1025
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：US11536122B2
公开(公告)日：2022-12-27
申请号：US16793386
申请日：2020-02-18
IPC分类号： E21B43/12 , F04C13/00 , F04B53/20 , F04D13/08 , F04D29/046 , F04D29/041 , F04B47/06
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：US11480187B2
公开(公告)日：2022-10-25
申请号：US16794368
申请日：2020-02-19
发明人： Rimpei Kawashita , Shimpei Yokoyama
IPC分类号： F04D29/18 , F04D13/10 , F04D1/06 , F04D29/047 , E21B43/12 , F04D29/046
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 includes 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：US11199077B2
公开(公告)日：2021-12-14
申请号：US16794389
申请日：2020-02-19
IPC分类号： E21B43/12 , F04D13/08 , F04D29/046 , H02K7/08 , F04D29/041
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：US11060561B2
公开(公告)日：2021-07-13
申请号：US16775460
申请日：2020-01-29
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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