公开(公告)号：US20040032929A1

公开(公告)日：2004-02-19

申请号：US10223133

申请日：2002-08-19

Inventor： Gregory C. Andrews ,  Vaughn Leroy Barrett

IPC: H05H001/00

CPC classification number: H01J35/105 ,  H01J2235/1208

Abstract: A rotor assembly capable of augmented heat transfer within an x-ray tube is disclosed for preventing heat damage to sensitive tube components. The rotor assembly generally comprises a shaft assembly for supporting the anode, a bearing assembly including a bearing housing and bearing sets for enabling rotation of the shaft assembly, and a magnetic sleeve. The shaft assembly includes a rotor sleeve that receives heat emitted by the anode during tube operation. The rotor sleeve radiates the heat to the magnetic sleeve, which is concentrically disposed within the rotor sleeve. A coolant-filled gap is defined adjacent the inner surface of the magnetic sleeve to receive the heat absorbed by the magnetic sleeve. The inner periphery of the gap is defined by the outer surface of the bearing housing. Emissive and absorptive coatings are disposed on the various surfaces of the rotor sleeve and magnetic sleeve to enhance heat transfer therebetween.

Abstract translation: 公开了一种能够在X射线管内增强热传递的转子组件，用于防止对敏感管部件的热损伤。 转子组件通常包括用于支撑阳极的轴组件，包括轴承壳体和用于使轴组件能够旋转的轴承组的轴承组件和磁性套筒。 轴组件包括在管操作期间接收由阳极发射的热的转子套筒。 转子套筒将热量辐射到同轴地设置在转子套筒内的磁性套筒。 在磁性套筒的内表面附近限定冷却剂填充的间隙，以接收由磁性套筒吸收的热量。 间隙的内周由轴承壳体的外表面限定。 发射和吸收涂层设置在转子套筒和磁性套筒的各个表面上以增强它们之间的热传递。

公开(公告)号：US06496564B2

公开(公告)日：2002-12-17

申请号：US09836306

申请日：2001-04-17

Applicant: Michael J. Price ,  Mark O. Derakhshan ,  Wayne F. Block ,  Charles B. Kendall

Inventor： Michael J. Price ,  Mark O. Derakhshan ,  Wayne F. Block ,  Charles B. Kendall

IPC: H01J3510

CPC classification number: H01J35/105 ,  H01J2235/1208

Abstract: An x-ray system with an x-ray generating device having improved heat dissipation capabilities. The x-ray generating device includes an x-ray tube mounted in a casing holding a circulating, cooling medium. According to the present invention, the x-ray generating device includes a support mechanism mounted within the x-ray generating device in a manner for adjustably positioning, relative to the casing, the focal spot alignment path of generated x-rays. Additionally, the x-ray generating device includes a cooling mechanism having an inlet chamber for channeling the cooling medium within the support mechanism. Additionally, a cooling stem may be positioned within the inlet chamber to increase the heat exchange surface area exposed to the cooling medium. Thus, the present invention advantageously increases the heat dissipation capability of the x-ray generating device.

Abstract translation: 具有X射线产生装置的X射线系统具有改进的散热能力。 X射线产生装置包括安装在保持循环的冷却介质的壳体中的X射线管。 根据本发明，X射线产生装置包括以相对于壳体可调节地定位所产生的X射线的焦点对准路径的方式安装在x射线产生装置内的支撑机构。 另外，X射线产生装置包括具有用于将冷却介质引导到支撑机构内的入口室的冷却机构。 此外，冷却杆可以位于入口室内以增加暴露于冷却介质的热交换表面积。 因此，本发明有利地增加了x射线产生装置的散热能力。

公开(公告)号：US06295338B1

公开(公告)日：2001-09-25

申请号：US09428795

申请日：1999-10-28

Applicant: Daniel E. Kuzniar ,  Jason P. Harris ,  Gerald J. Carlson

Inventor： Daniel E. Kuzniar ,  Jason P. Harris ,  Gerald J. Carlson

IPC: H01J3510

CPC classification number: H01J35/101 ,  H01J2235/1046 ,  H01J2235/1053 ,  H01J2235/1208

Abstract: An x-ray tube (20) comprising a cathode (23) and an anode (24) in operative relationship with the cathode (23). The anode (24) is mounted on a stem (32). The x-ray tube includes at least one bearing (58) rotatably receiving the stem (32). The at least one bearing (58) has an outer bearing race (66) in an outer race member, an inner bearing race (62) and a plurality of bearing members (64) operatively disposed between the inner and outer bearing races. The x-ray tube (20) also includes an evacuated envelope (78) which encloses the tube components and receives the outer race member of the at least one bearing (58) in thermally conductive contact along an inner surface (79).

Abstract translation: 一种包括与阴极（23）有效关系的阴极（23）和阳极（24）的X射线管（20）。 阳极（24）安装在杆（32）上。 X射线管包括至少一个可旋转地接收杆（32）的轴承（58）。 所述至少一个轴承（58）在外座圈构件中具有外轴承座（66），内轴承座（62）和可操作地设置在所述内轴承座和所述外轴承座之间的多个轴承构件（64）。 X射线管（20）还包括抽真空的外壳（78），其包围管部件并且沿着内表面（79）以导热接触的方式接纳至少一个轴承（58）的外座圈部件。

公开(公告)号：US06269146B1

公开(公告)日：2001-07-31

申请号：US09335777

申请日：1999-06-18

Applicant: Masayoshi Ohnishi ,  Daiji Hiraoka ,  Kazunori Hayashida

Inventor： Masayoshi Ohnishi ,  Daiji Hiraoka ,  Kazunori Hayashida

IPC: H01J3510

CPC classification number: H01J35/101 ,  H01J2235/1086 ,  H01J2235/12 ,  H01J2235/1208

Abstract: There is provided a rotating anode X-ray tube capable of efficiently discharging intense heat generated when X-rays are generated and achieving a high output power, a long-time continuous operation and a long operating life of the bearings. A rotating anode X-ray tube is provided with a target, a rotor, a shaft, rolling bearings and a bearing housing for supporting the rolling bearings. An accommodating, section for accommodating Ga or Ga alloy is defined by a center portion of the shaft and an inner surface of the bearing housing between the rolling bearings. Pumping grooves and labyrinth grooves are provided axially outwardly of the accommodating section for preventing the Ga or Ga alloy from leaking.

Abstract translation: 提供一种能够有效地排出产生X射线时产生的强热并实现高输出功率，长时间连续运转以及轴承使用寿命长的旋转阳极X射线管。 旋转阳极X射线管设置有靶，转子，轴，滚动轴承和用于支撑滚动轴承的轴承壳体。 用于容纳Ga或Ga合金的容纳部分由轴的中心部分和轴承壳体在滚动轴承之间的内表面限定。 抽水槽和迷宫槽沿容纳部的轴向外侧设置，以防止Ga或Ga合金泄漏。

公开(公告)号：US06249569B1

公开(公告)日：2001-06-19

申请号：US09219219

申请日：1998-12-22

Applicant: Michael J. Price ,  Mark O. Derakhshan ,  Wayne F. Block ,  Charles B. Kendall

Inventor： Michael J. Price ,  Mark O. Derakhshan ,  Wayne F. Block ,  Charles B. Kendall

IPC: H01J3510

CPC classification number: H01J35/105 ,  H01J2235/1208

Abstract: An x-ray system with an x-ray generating device having improved heat dissipation capabilities. The x-ray generating device has an x-ray tube mounted in a casing holding a circulating, cooling medium. According to the present invention, the x-ray generating device includes a support mechanism mounted within the x-ray generating device in a manner for adjustably positioning, relative to the casing, the focal spot alignment path of generated x-rays. Additionally, the x-ray generating device includes a cooling mechanism having an inlet chamber for channeling the cooling medium within the support mechanism. Additionally, a cooling stem may be positioned within the inlet chamber to increase the heat exchange surface area exposed to the cooling medium. Thus, the present invention advantageously increases the heat dissipation capability of the x-ray generating device.

Abstract translation: 具有X射线产生装置的X射线系统具有改进的散热能力。 X射线产生装置具有安装在保持循环的冷却介质的壳体中的x射线管。 根据本发明，X射线产生装置包括以相对于壳体可调节地定位所产生的X射线的焦点对准路径的方式安装在x射线产生装置内的支撑机构。 另外，X射线产生装置包括具有用于将冷却介质引导到支撑机构内的入口室的冷却机构。 此外，冷却杆可以位于入口室内以增加暴露于冷却介质的热交换表面积。 因此，本发明有利地增加了x射线产生装置的散热能力。

公开(公告)号：US06198805B1

公开(公告)日：2001-03-06

申请号：US09377295

申请日：1999-08-19

Applicant: Viswanathan Jambunathan ,  Vivek Bhatt ,  Mark Ernest Vermilyea ,  Bijan Dorri

Inventor： Viswanathan Jambunathan ,  Vivek Bhatt ,  Mark Ernest Vermilyea ,  Bijan Dorri

IPC: H01J3510

CPC classification number: H01J35/10 ,  H01J2235/086 ,  H01J2235/1013 ,  H01J2235/1208

Abstract: An X-ray-tube target assembly includes an annular monolithic X-ray-tube target shaft and a monolithic X-ray-tube target cap. The target shaft is a stepped target shaft. The target cap is inertially welded to the target shaft. The target assembly is made by inertially welding together a monolithic solid cylinder and a monolithic solid X-ray-tube target cap and then machining the target shaft to be annular and to have the step.

Abstract translation: X射线管靶组件包括环形单片X射线管靶轴和单片X射线管靶帽。 目标轴是阶梯目标轴。 靶帽被惯性焊接到目标轴上。 目标组件通过将单片实心圆筒和单片固体X射线管目标帽惯性焊接在一起，然后将目标轴加工成环形并且具有台阶。

公开(公告)号：US6160868A

公开(公告)日：2000-12-12

申请号：US265160

申请日：1999-03-09

Applicant: Douglas J. Snyder ,  Carey S. Rogers

Inventor： Douglas J. Snyder ,  Carey S. Rogers

IPC: H01J35/10

CPC classification number: H01J35/105 ,  H01J2235/1208 ,  H01J2235/1291

Abstract: Heat removal apparatus is provided for an X-ray tube having a frame, a shaft mounted for rotation with respect to the frame, and an anode supported on the shaft for rotation therewith. The apparatus comprises a heat transfer component, which is fixably joined to the frame in closely spaced relationship with an end portion of the rotatable shaft, and further comprises a radially, axially and tilt compliant sealing device, such as a flexible bellows, which is positioned to substantially enclose a space extending between the heat transfer component and a specified end portion of the shaft. A selected thermally conductive liquid metal, such as a gallium alloy, is contained within the enclosed space to provide a path for the flow of heat from the shaft to the heat transfer component, as the shaft and the anode rotate with respect to the frame. Such arrangement also permits expansion of the liquid metal, in the event of freezing.

Abstract translation: 提供了一种用于具有框架，安装成相对于框架旋转的轴的X射线管和支撑在轴上以用于旋转的阳极的热去除装置。 该装置包括传热部件，该传热部件与可旋转轴的端部以紧密间隔的关系固定地连接到框架，并且还包括径向，轴向和倾斜的柔性密封装置，例如柔性波纹管，其被定位 基本上包围在传热部件和轴的指定端部之间延伸的空间。 所选择的导热液体金属（例如镓合金）被包含在封闭空间内，以便随着轴和阳极相对于框架旋转而提供从轴到传热部件的热量流动的路径。 在冷冻的情况下，这种布置还允许液态金属膨胀。

公开(公告)号：US5875227A

公开(公告)日：1999-02-23

申请号：US925294

申请日：1997-09-08

Applicant: Vivek Bhatt

Inventor： Vivek Bhatt

IPC: H01J35/10

CPC classification number: H01J35/101 ,  H01J2235/1046 ,  H01J2235/1086 ,  H01J2235/1208

Abstract: An X-ray tube assembly having bearings rotatably connecting a rotor shaft and a stator. A pair of circumferential protrusions each radially extend from the shaft and are spaced apart a first radial distance from the stator. A substance, which includes metal (such as gallium) and which is liquid at the assembly's operating temperature, is located longitudinally between the circumferential protrusions. The substance radially extends a second radial distance between, and in conductive thermal contact with, the shaft and the stator. Preferably, the second radial distance is greater than fifty times the first radial distance, and the first radial distance is between twenty and sixty microns.

Abstract translation: 一种具有可旋转地连接转子轴和定子的轴承的X射线管组件。 一对周向突起各自从轴径向延伸并且与定子隔开第一径向距离。 包括金属（例如镓）并且在组件工作温度下为液体的物质纵向位于圆周突起之间。 该物质在轴和定子的导电热接触之间径向延伸第二径向距离。 优选地，第二径向距离大于第一径向距离的五十倍，并且第一径向距离在二十到六十微米之间。

公开(公告)号：US5652778A

公开(公告)日：1997-07-29

申请号：US543094

申请日：1995-10-13

Applicant: Prabhat Kumar Tekriwal

Inventor： Prabhat Kumar Tekriwal

IPC: H01J35/10

CPC classification number: H01J35/105 ,  H01J2235/1204 ,  H01J2235/1208 ,  H01J2235/1291

Abstract: An X-ray tube includes a housing containing an anode target having a target shaft supported in the housing by a bearing. The target is rotated, and a cathode emits an electron beam against the target to create X-rays which are discharged from the tube through a window therein. The target shaft is integral with the target and extends axially therefrom for conducting heat away from the target and to the shaft without joint heat resistance. The bearing includes a rotor hub to which the target shaft is removably joined and is configured for improving heat conduction to a stator of the bearing for preferentially limiting the temperature thereof.

Abstract translation: X射线管包括壳体，其容纳阳极靶，所述阳极靶具有通过轴承支撑在壳体中的目标轴。 目标被旋转，并且阴极发射抵靠靶的电子束，以产生通过其中的窗口从管中排出的X射线。 目标轴与目标一体并从其轴向延伸，用于将热量从目标传导到轴而不具有接头耐热性。 轴承包括转子轮毂，目标轴可拆卸地连接到该转子轮毂，并且构造成用于改善对轴承的定子的热传导，以优先限制其温度。