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公开(公告)号：CN1074784A
公开(公告)日：1993-07-28
申请号：CN93101132.9
申请日：1993-01-22
Applicant: 东芝株式会社
IPC: H01J35/10
CPC classification number: F16C33/107 , F16C17/026 , F16C17/107 , H01J35/101 , H01J2235/1026 , H01J2235/106
Abstract: 本发明目的在于提供一种可防止液体金属润滑剂漏出，能维持稳定的轴承动作的旋转阳极型X射线管。本发明的旋转阳极型X射线管使旋转体以及固定体的轴承部所充填的液体金属润滑剂量为从最靠近真空容器内空间的螺纹槽滑动轴承部的端部开始包括内部螺纹槽在内液体金属润滑剂得以流动的空间容积的20％以上50％以下范围的体积。
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公开(公告)号：EP0081755A2
公开(公告)日：1983-06-22
申请号：EP82111142.4
申请日：1982-12-02
Applicant: Klostermann, Heinrich F.
Inventor： Klostermann, Heinrich F.
CPC classification number: H01J35/101 , H01J2235/1026 , H05G1/66
Abstract: An x-ray tube comprises a generally cylindrical evacuated metal tube envelope (410) having an anode (451) rotatably mounted therein. The tube envelope wall (525) includes ferrous segments (526a-526f) which minimize the gap in the magnetic coupling while permitting a thick and strong tube envelope wall. Drive means (230) includes a DC stator (240) external of the tube envelope acting on an internal rotor (235) mounted to rotate with the anode. Anode drive means also includes a DC stator (480) operating on a rotor (471) having encapsulated rare earth magnets (472a-472h), and an AC stator (570) operating on a squirrel cage rotor (550) through a laminated segmented tube wall (525).
Abstract translation: X射线管在真空管外壳内包括阴极，可旋转安装的阳极和连接到阳极和阴极的电路，用于产生通过信封中的窗口发射的X射线。 提供变速驱动器用于旋转阳极并且包括安装在壳体的壁内并邻近壳体壁的内转子，该转子被安装成与阳极一起旋转并且包括至少一个具有至少两个极的永磁体。 该驱动器还包括一定子，该定子定位在围绕转子和绕组的管状外壳的外部，以产生驱动内部转子的磁场。 管子是pref。 具有形成将内部转子与外部定子绕组耦合的磁通环的一部分的铁分段。
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公开(公告)号：WO2019002010A1
公开(公告)日：2019-01-03
申请号：PCT/EP2018/066170
申请日：2018-06-19
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： BEHLING, Rolf Karl Otto
IPC: H01J35/10
CPC classification number: H01J35/101 , H01J2235/1026
Abstract: A trend in the design of CT and C-arm scanning systems is miniaturization, requiring system components to be accommodated in smaller spaces. This trend has begun to influence the design of X-ray system components like X-ray tubes. The present application proposes to make more space available inside an X- ray tube assembly by using asynchronous motors with stators which do not encompass the rotary anode member. The gap portion created in the stator segments can be used to house extra components. In addition, the unequal forces and momenta exerted on a rotary X-ray source by such segmented stators can be used to compensate undesirable forces, such as gyroscopic or gravitational forces, on the rotary X-ray source in operation.
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公开(公告)号：WO2009055284A1
公开(公告)日：2009-04-30
申请号：PCT/US2008/079991
申请日：2008-10-15
Applicant: THE BOEING COMPANY , SAFAI, Morteza , GEORGESON, Gary, E. , EDWARDS, Talion
Inventor： SAFAI, Morteza , GEORGESON, Gary, E. , EDWARDS, Talion
CPC classification number: H01J35/101 , G21K1/04 , H01J35/18 , H01J35/26 , H01J2235/1026 , H01J2235/166
Abstract: A method and apparatus for an x-ray apparatus. The x-ray apparatus comprises a vacuum tube. A cathode is located in the vacuum tube and capable of emitting electrons. A rotatable magnetic anode located in the vacuum tube, capable of being rotated by a motor located outside of the vacuum tube, and capable of generating an x-ray beam in response to receiving the electrons emitted by the cathode.
Abstract translation: 一种用于X射线装置的方法和装置。 该X射线装置包括真空管。 阴极位于真空管中，能够发射电子。 位于真空管中的可旋转的磁性阳极能够由位于真空管外侧的电动机旋转，并且能够响应于接收阴极发射的电子而产生X射线束。
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公开(公告)号：EP2852963B1
公开(公告)日：2018-09-05
申请号：EP13731166.8
申请日：2013-05-09
Applicant: Koninklijke Philips N.V. , Philips GmbH
Inventor： CHROST, Wolfgang
CPC classification number: H02K3/02 , H01J35/101 , H01J35/103 , H01J2235/1026
Abstract: The present invention relates to a rotor for an X-ray tube. In order to provide further possibilities for weight reduction in X-ray tubes for providing an increase of rotation frequency, a rotor (10) for an X-ray tube is provided, comprising a rotational structure (12) with a plurality of electrically conducting elements (14), the ends thereof connected to each other and provided such that an external stator magnetic field generated by a stator induces a current in the electrically conducting elements, which current generates a rotor magnetic field to interact with the stator magnetic field. At least the plurality of electrically conducting elements is made from carbon composite based material.
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Patent Agency Ranking
公开(公告)号：EP0218434A2
公开(公告)日：1987-04-15
申请号：EP86307444.9
申请日：1986-09-29
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Takahashi, Hiroshi c/o Patent Div. Toshiba Corp. , Takahara, Kenichi c/o Patent Div. Toshiba Corp.
IPC: H01J35/10
CPC classification number: H01J35/16 , H01J35/101 , H01J35/103 , H01J35/108 , H01J2235/1013 , H01J2235/1026
Abstract: A rotating anode X-ray tube is described which has a vacuum housing (32), an anode support shaft (34) inside the housing, with means (36, 38, 40) for rotating the support shaft (34); and an anode disk (44) mounted on the anode support shaft (34). A ring-shaped target (42) is mounted on the disk (44) towards the periphery thereof, for generating X-rays in response to thermion bombardment. The anode disk is of unitary structure having a centrl axis of rotation and a circumferential peripheral edge (56) lying in a plane perpendicular to said axis of rotation, and has an integral mounting portion (46), for mounting the disk to the support shaft to permit rotation of the disk. The thickness of the disk increases progressively radially inward at least in that portion of the disk between the target and the mounting portion.
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公开(公告)号：EP0081755A3
公开(公告)日：1984-11-28
申请号：EP82111142
申请日：1982-12-02
Applicant: Litton Systems, Inc.
Inventor： Klostermann, Heinrich F.
CPC classification number: H01J35/101 , H01J2235/1026 , H05G1/66
Abstract: An x-ray tube comprises a generally cylindrical evacuated metal tube envelope (410) having an anode (451) rotatably mounted therein. The tube envelope wall (525) includes ferrous segments (526a-526f) which minimize the gap in the magnetic coupling while permitting a thick and strong tube envelope wall. Drive means (230) includes a DC stator (240) external of the tube envelope acting on an internal rotor (235) mounted to rotate with the anode. Anode drive means also includes a DC stator (480) operating on a rotor (471) having encapsulated rare earth magnets (472a-472h), and an AC stator (570) operating on a squirrel cage rotor (550) through a laminated segmented tube wall (525).
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公开(公告)号：US11955308B1
公开(公告)日：2024-04-09
申请号：US17950768
申请日：2022-09-22
Applicant: KLA Corporation
Inventor： Michel Pharand
CPC classification number: H01J35/106 , H01J35/1017 , H01J35/104 , F16C33/107 , H01J2235/1026
Abstract: Methods and systems for realizing a high speed, rotating anode based x-ray illumination source suitable for high throughput x-ray metrology are presented herein. A high speed rotating anode includes a water cooled rotating platen supported by radial and thrust air bearings employing cascaded differential pumping. A very high bending stiffness of the rotating assembly is achieved by spacing radial air bearings far apart and locating a rotary motor and thrust bearings between the radial air bearings. The high bending stiffness increases the mechanical stability of the rotating assembly during high speed operation, and thus decreases vibration at the location of impingement of the electron beam on the rotating anode material. In some embodiments, magnetic thrust bearings are employed and the air gap is controlled to maintain a desired gap over an operational range of up to three millimeters.
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公开(公告)号：US11910515B2
公开(公告)日：2024-02-20
申请号：US17595064
申请日：2020-05-07
Applicant: Excillum AB
Inventor： Ulf Lundström , Björn Hansson , Per Takman , Tomi Tuohimaa
CPC classification number: H05G2/006 , F04B15/02 , F04B17/03 , F04B17/04 , H01J35/112 , H01J2235/082 , H01J2235/1026
Abstract: An electromagnetic pump for pumping an electrically conductive liquid, including a first conduit section and a second conduit section. The electromagnetic pump further includes a current generator arranged to provide an electric current through the liquid in the first conduit section and the liquid in the second conduit section such that a direction of the electric current is intersecting the flow of the liquid in the first conduit section and in the second conduit section, and a magnetic field generating arrangement arranged to provide a magnetic field passing through the liquid in the first conduit section and the second conduit section such that a direction of the magnetic field is intersecting the flow of the liquid and the direction of the electric current.
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公开(公告)号：US09911570B2
公开(公告)日：2018-03-06
申请号：US14968078
申请日：2015-12-14
Applicant: VAREX IMAGING CORPORATION
Inventor： Santosh K. Tiwari , Kasey Greenland
CPC classification number: H01J35/101 , B65D25/14 , C23C14/0641 , C23C16/0254 , C23C16/34 , F16C33/6651 , F16N19/00 , H01J35/18 , H01J2235/1026 , H01J2235/1046 , H01J2235/1086 , H01J2235/18
Abstract: Technology is described for an antiwetting coating attached to a substrate (e.g., metal substate) on a liquid metal container. In one example, the liquid metal container includes a first enclosure member, a second enclosure member, liquid metal, and an antiwetting coating. The first enclosure member includes a first substrate with a first surface. The second enclosure member includes a second substrate with a second surface. The first enclosure member is positioned proximate to the second enclosure member such that a gap is formed between the first surface and the second surface. The liquid metal positioned within the gap. An antiwetting coating attached to the first surface and/or the second surface. The antiwetting coating includes chromium nitride (CrN), dichromium nitride (Cr2N), chromium (III) oxide (Cr2O3), and/or titanium aluminum nitride (TiAlN) attached to the first surface and/or the second surface.
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