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公开(公告)号：US20200294754A1
公开(公告)日：2020-09-17
申请号：US16886197
申请日：2020-05-28
Applicant: General Electric Company
Inventor： Ian Strider Hunt , Kevin Shane Kruse
Abstract: A liquid metal or spiral groove bearing structure for an x-ray tube and associated process for manufacturing the bearing structure is provided in which journal bearing sleeve is formed with a number of structures thereon that function to dissipate heat transmitted to the sleeve during operation of the bearing assembly within the x-ray tube to minimize thermal deformation of the sleeve, thereby minimizing gap size alteration within the bearing assembly. The structures formed within the sleeve are slots disposed within the section of the sleeve in which the highest temperature gradients develop. The slots enable an increase in thermal conductance away from the sleeve while minimizing the stresses created from the deformation of the portion(s) of the sleeve between the slots.
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公开(公告)号：US20190164716A1
公开(公告)日：2019-05-30
申请号：US15827920
申请日：2017-11-30
Applicant: General Electric Company
Inventor： Ian Strider Hunt , Kevin Kruse , Andrew Triscari
CPC classification number: H01J35/101 , F16C17/04 , F16C33/6659 , F16C37/002 , F16C2316/10 , F16C2380/16 , H01J35/106 , H01J2235/1013 , H01J2235/1046 , H01J2235/1208 , H01J2235/1266 , H01J2235/1279 , H05G1/00 , H05G1/02 , H05G1/025
Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing flange encased within a bearing housing or sleeve. The sleeve includes a thrust seal that is engaged with the sleeve in a manner to maintain coaxiality for the rotating liquid metal seal formed in the sleeve about the shaft. The shaft includes a central bore containing a cooling tube that directs coolant within the bore to maximize the heat transfer from the shaft to the coolant, allowing materials with lower thermal conductivities, such as steel, to be used to form the bearing shaft. The thrust flange on the shaft is formed with channel(s) therein that enable the coolant and/or the liquid metal to effect greater heat transfer on the components of the sleeve through the thrust flange, thereby reducing thermal deformation of the bearing components.
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公开(公告)号：US20180061611A1
公开(公告)日：2018-03-01
申请号：US15251854
申请日：2016-08-30
Applicant: General Electric Company
Inventor： John James McCabe , Michael Scott Hebert , Ian Strider Hunt , Andrew Thomas Triscari , Kevin Shane Kruse , Alexander Thomas Ryan , Adolfo Delgado Marquez
IPC: H01J35/10
CPC classification number: H01J35/101 , H01J2235/1006 , H01J2235/1046
Abstract: An X-ray tube is provided. The X-ray tube includes a bearing configured to couple to an anode. The bearing includes a stationary member, a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube, and a support feature configured to minimize bending moment along a surface of the stationary member to reduce deflection of the stationary member relative to the rotary member due to radial loads during operation of the X-ray tube.
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公开(公告)号：US10438767B2
公开(公告)日：2019-10-08
申请号：US15827920
申请日：2017-11-30
Applicant: General Electric Company
Inventor： Ian Strider Hunt , Kevin Kruse , Andrew Triscari
Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing flange encased within a bearing housing or sleeve. The sleeve includes a thrust seal that is engaged with the sleeve in a manner to maintain coaxiality for the rotating liquid metal seal formed in the sleeve about the shaft. The shaft includes a central bore containing a cooling tube that directs coolant within the bore to maximize the heat transfer from the shaft to the coolant, allowing materials with lower thermal conductivities, such as steel, to be used to form the bearing shaft. The thrust flange on the shaft is formed with channel(s) therein that enable the coolant and/or the liquid metal to effect greater heat transfer on the components of the sleeve through the thrust flange, thereby reducing thermal deformation of the bearing components.
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公开(公告)号：US20190066964A1
公开(公告)日：2019-02-28
申请号：US15689326
申请日：2017-08-29
Applicant: General Electric Company
Inventor： Edward Emaci , Ian Strider Hunt , Alexander Ryan , Michael Gorrilla
Abstract: A structure and method of operation of a journal bearing is disclosed that minimizes contact of the shaft with the sleeve during start up and slow down of the rotation of the shaft relative to the sleeve, or vice versa. The bearing assembly includes a gravitational load reduction mechanism with magnets disposed on the sleeve and on the shaft in alignment with one another. The magnet(s) on the shaft interacts with the magnet(s) disposed on the sleeve to provide a force against the pressure of the shaft towards the sleeve generated by gravity acting on the rotating component. The magnets enable centering of the rotating component within the stationary component during low rotation and non-rotation. This prevents rubbing of the rotating journal bearing component surfaces, e.g., sleeve, against the stationary journal bearing component, e.g., shaft, during assembly, ramp-up, and coast-down when the journal bearing fluid provides minimal or no bearing centering capability.
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Patent Agency Ranking
6.发明授权公开(公告)号：US09500226B2
公开(公告)日：2016-11-22
申请号：US14459231
申请日：2014-08-13
Applicant: General Electric Company
Inventor： Ian Strider Hunt , Kenwood P. Dayton , Ben David Poquette , Santosh Kumar Tiwari , Michael J. Danyluk
CPC classification number: F16C33/1065 , F16C17/107 , F16C33/14 , F16C33/6692 , F16C2380/16 , H01J35/101 , H01J2235/1066 , H01J2235/108
Abstract: Various methods and systems are provided for providing coatings and textures to surfaces of a bearing assembly in an x-ray system to control the wettability of the surfaces when components of the bearing assembly rotate during operation of the x-ray system. A lubricant is disposed in a gap formed between a shaft and a sleeve of the bearing assembly such that textured and coated surfaces of the shaft and sleeve alter wetting properties between the lubricant and surfaces. The coatings and textures can be wetting or anti-wetting to further enhance control over the behavior of the lubricant.
Abstract translation: 提供各种方法和系统，以在X射线系统中的轴承组件的表面上提供涂层和纹理，以在轴承组件的部件在x射线系统的操作期间旋转时控制表面的润湿性。 润滑剂设置在轴承组件的轴和套筒之间形成的间隙中，使得轴和套筒的纹理和涂覆表面改变润滑剂和表面之间的润湿性能。 涂层和纹理可以润湿或防湿润，以进一步增强对润滑剂性能的控制。
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7.发明申请公开(公告)号：US20160047415A1
公开(公告)日：2016-02-18
申请号：US14459231
申请日：2014-08-13
Applicant: General Electric Company
Inventor： Ian Strider Hunt , Kenwood P. Dayton , Ben David Poquette , Santosh Kumar Tiwari , Michael J. Danyluk
CPC classification number: F16C33/1065 , F16C17/107 , F16C33/14 , F16C33/6692 , F16C2380/16 , H01J35/101 , H01J2235/1066 , H01J2235/108
Abstract: Various methods and systems are provided for providing coatings and textures to surfaces of a bearing assembly in an x-ray system to control the wettability of the surfaces when components of the bearing assembly rotate during operation of the x-ray system. A lubricant is disposed in a gap formed between a shaft and a sleeve of the bearing assembly such that textured and coated surfaces of the shaft and sleeve alter wetting properties between the lubricant and surfaces. The coatings and textures can be wetting or anti-wetting to further enhance control over the behavior of the lubricant.
Abstract translation: 提供各种方法和系统，以在X射线系统中的轴承组件的表面上提供涂层和纹理，以在轴承组件的部件在x射线系统的操作期间旋转时控制表面的润湿性。 润滑剂设置在轴承组件的轴和套筒之间形成的间隙中，使得轴和套筒的纹理和涂覆表面改变润滑剂和表面之间的润湿性能。 涂层和纹理可以润湿或防湿润，以进一步增强对润滑剂性能的控制。
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公开(公告)号：US20140369475A1
公开(公告)日：2014-12-18
申请号：US14472762
申请日：2014-08-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ian Strider Hunt , Donald Robert Allen , Kenwood Dayton , Andrew Triscari
CPC classification number: H01J35/26 , H01J9/18 , H01J35/101 , H01J2235/106 , H01J2235/1086 , Y10T29/49826
Abstract: The present disclosure is directed towards the prevention of high voltage instabilities within X-ray tubes. For example, in one embodiment, an X-ray tube is provided. The X-ray tube generally includes a stationary member, and a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube. The X-ray tube also includes a liquid metal bearing material disposed in a space between the shaft and the sleeve, a seal disposed adjacent to the space to seal the liquid metal bearing material in the space, and an enhanced surface area material disposed on a side of the seal axially opposite the space and configured to trap within the enhanced surface area material liquid metal bearing material that escapes the seal.
Abstract translation: 本公开旨在防止X射线管内的高电压不稳定性。 例如，在一个实施例中，提供了X射线管。 X射线管通常包括固定构件，以及构造成在X射线管操作期间相对于静止构件旋转的旋转构件。 X射线管还包括设置在轴和套筒之间的空间中的液体金属轴承材料，邻近空间设置的密封件，以密封空间中的液态金属轴承材料，以及增强的表面积材料 所述密封件的侧面与所述空间轴向相对并且构造成在所述增强的表面区域内陷入材料，所述材料液体金属轴承材料逸出所述密封件。
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公开(公告)号：US10468223B2
公开(公告)日：2019-11-05
申请号：US16240141
申请日：2019-01-04
Applicant: General Electric Company
Inventor： John James McCabe , Michael Scott Hebert , Ian Strider Hunt , Andrew Thomas Triscari , Kevin Shane Kruse , Alxander Thomas Ryan , Adolfo Delgado Marquez
IPC: H01J35/10
Abstract: An X-ray tube is provided. The X-ray tube includes a bearing configured to couple to an anode. The bearing includes a stationary member, a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube, and a support feature configured to minimize bending moment along a surface of the stationary member to reduce deflection of the stationary member relative to the rotary member due to radial loads during operation of the X-ray tube.
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公开(公告)号：US20180223908A1
公开(公告)日：2018-08-09
申请号：US15426879
申请日：2017-02-07
Applicant: General Electric Company
Inventor： Ian Strider Hunt , Andrew Thomas Triscari , Donald Allen , Gregory Steinlage , Michael Scott Hebert
Abstract: A ring seal is engaged with a liquid metal bearing assembly and operates to contain metal fluid lubricant leaking through the primary compression seals of a liquid metal bearing to prevent the fluid from entering the high voltage space within the x-ray tube and causing high voltage instability. The ring seal engages the existing configuration for the bearing assembly without deforming the bearing, including effects of thermal expansion and inertial body forces, thus maintaining the tight tolerances for the proper operation of the component parts of the bearing structure. The ring seal retains the leaking liquid metal within the ring seal regardless of the operating state and/or condition of the bearing assembly, such as during operating conditions. i.e., rotation of the bearing assembly or gantry, and non-operating conditions, e.g., shipping and stand-by, and regardless of the corresponding pressures and their locations exerted on the ring seal by the liquid metal.
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