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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：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：US20230341056A1
公开(公告)日：2023-10-26
申请号：US18028031
申请日：2021-09-14
发明人： Norihisa TAKEI , Hidekazu UEHARA , Takumi HORI , Kohei OZAKI , Azumi YOSHIDA , Masaya KAWANO , Shin NISHIMOTO , Tatsuro FURUSHO , Shintaro OKUMURA
IPC分类号： F16J15/447
CPC分类号： F16J15/447 , F01D11/02
摘要： This seal device comprises: a movable seal ring arranged so as to be deformable in the radial direction, in a state of facing an outer peripheral surface of a rotor of a steam turbine capable of rotating around the axis; a first elastic member provided to each of end surfaces of the movable seal ring in the circumferential direction; and a second elastic member that is provided to an intermediate position in the circumferential direction of the movable seal ring and urges the movable seal ring outward in the radial 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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