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    X-ray tube rotor with carbon composite based material
    41.
    发明授权
    X-ray tube rotor with carbon composite based material 有权

    公开(公告)号：US09853511B2

    公开(公告)日：2017-12-26

    申请号：US14396808

    申请日：2013-05-09

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Wolfgang Chrost

    IPC: A61B6/00 ,  H02K3/02 ,  H01J35/10

    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.

    Cathode head having filament protection features
    42.
    发明授权
    Cathode head having filament protection features 失效
    阴极头具有灯丝保护功能

    公开(公告)号：US07657002B2

    公开(公告)日：2010-02-02

    申请号：US11343599

    申请日：2006-01-31

    Applicant: James Burke ,  Charles Lynn Chidester ,  Bruce A Cain ,  Rob Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Gene Christean

    Inventor： James Burke ,  Charles Lynn Chidester ,  Bruce A Cain ,  Rob Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Gene Christean

    IPC: H01J35/06

    CPC classification number: H01J35/06 ,  H01J2235/06 ,  H01J2235/1026 ,  H01J2235/1216

    Abstract: A cathode assembly including certain features designed to protect the integrity of a filament contained therein is disclosed. In particular, the cathode assembly is configured to prevent damage to the filament should it inadvertently contact another portion of the cathode assembly. In an example embodiment, an x-ray tube incorporating features of the present invention is disclosed. The x-ray tube includes an evacuated enclosure containing a cathode assembly and an anode. The cathode assembly includes a head portion having a head surface. A slot is defined on the head surface and an electron-emitting filament is included in the slot. A protective surface is defined on the head surface proximate to a central portion of the filament. The protective surface in one embodiment is composed of tungsten and is configure to prevent fusing of the filament to the protective surface should the filament inadvertently contact the protective surface.

    Abstract translation: 公开了一种阴极组件，其包括设计成保护其中所包含的细丝的完整性的某些特征。 特别地，阴极组件被构造成如果它不经意地接触阴极组件的另一部分，则防止对细丝的损坏。 在示例性实施例中，公开了包含本发明的特征的X射线管。 x射线管包括一个包含阴极组件和一个阳极的真空外壳。 阴极组件包括具有头表面的头部部分。 在头表面上限定狭缝，并且在槽中包括电子发射丝。 保护表面限定在靠近灯丝中心部分的头表面上。 一个实施例中的保护表面由钨组成，并且被配置为当灯丝不经意地接触保护表面时防止灯丝熔合到保护表面。

    X-ray tube with rotating anode core
    44.
    发明授权
    X-ray tube with rotating anode core 失效
    带旋转阳极芯的X射线管

    公开(公告)号：US06453011B1

    公开(公告)日：2002-09-17

    申请号：US09727309

    申请日：2000-11-30

    Applicant: Lothar Lohmann ,  Hans Julicher

    Inventor： Lothar Lohmann ,  Hans Julicher

    IPC: H01J518

    CPC classification number: H01J35/26 ,  H01J35/10 ,  H01J2235/1026 ,  H01J2235/1204 ,  H01J2235/1262

    Abstract: Conventional x-ray tubes are designed as stationary or rotating-anode tubes. While the former are restricted in output, the latter are of complicated design. An x-ray tube is provided having an anode comprising a stationary shell and a rotating core mounted therein. Consequently, it is more compact than a rotating-anode tube and permits higher focal spot loads than a stationary-anode tube. The tube can be used for imaging procedures in medical diagnostics and in material testing.

    Abstract translation: 常规的X射线管被设计为固定或旋转阳极管。 前者受限制，后者是复杂的设计。 提供一种X射线管，其具有包括固定壳体和安装在其中的旋转芯体的阳极。 因此，它比旋转阳极管更紧凑，并且允许比固定阳极管更高的焦斑负载。 该管可用于医学诊断和材料测试中的成像程序。

    X-ray tubes
    45.
    发明授权
    X-ray tubes 失效

    公开(公告)号：US4811375A

    公开(公告)日：1989-03-07

    申请号：US893152

    申请日：1986-08-18

    Applicant: Heinrich F. Klostermann

    Inventor： Heinrich F. Klostermann

    IPC: H01J35/10 ,  H05G1/66 ,  H01J35/00

    CPC classification number: H01J35/101 ,  H05G1/66 ,  H01J2235/1026

    Abstract: An X-ray tube comprises a generally cylindrical evacuated metal tube envelope having an anode rotatably mounted therein. [The interior of the tube envelope adjacent the anode is provided with ceramic insulation to prevent flashover.] The anode is rotated by an external variable speed DC drive motor magnetically coupled through the tube envelope wall to the rotating anode assembly. [The tube envelope wall includes ferrous segments which minimize the gap in the magnetic coupling while permitting a thick and strong tube envelope wall. A variable speed DC motor or a variable speed air motor may be employed to drive the anode. In preferred embodiments, the anode drive means is electromechanically clutched to the anode, whereby the drive means can be brought up to the desired anode speed and thereafter clutched to the anode, the drive means acting as a flywheel to bring the anode quickly up to speed. Electromagnets operating as clutches are also employed. Additionally, the anode drive means may be operated at high speeds suitable for radiography, and the electromagnetic clutch means may be intermittently operated to maintain the anode rotating during fluroroscopy. When a radiograph is required in the midst of fluoroscopy, the electromagnetic clutch is actuated to bring the anode up to its full speed. Alternate drive means include a DC stator external of the tube envelope acting on an internal rotor mounted to rotate with the anode. The X-ray tube further comprises a cathode rotatably mounted in the tube envelope and incorporating plurality of cathode filaments. Cathode rotation drive means are provided for rotating the cathode to select the desired filament. The cathode drive means is preferably magnetically coupled through the tube wall in order to rotate the cathode. Anode drive means also include]. The DC drive motor includes a DC stator external of the tube envelope operating on a rotor having encapsulated rare earth magnets [and an AC stator operating on a squirrel cage rotor through a laminated segmented tube wall]. A fan is provided for air cooling of the tube envelope.

    Magnetic suspension device of a rotor placed in a sealed enclosure
    46.
    发明授权
    Magnetic suspension device of a rotor placed in a sealed enclosure 失效
    转子的磁悬浮装置放置在密封的外壳中

    公开(公告)号：US4500142A

    公开(公告)日：1985-02-19

    申请号：US503626

    申请日：1983-06-13

    Applicant: Maurice Brunet

    Inventor： Maurice Brunet

    IPC: F16C32/04 ,  F16C39/06 ,  H01J35/10 ,  H02K7/09

    CPC classification number: F16C32/047 ,  F16C32/0491 ,  F16C35/00 ,  H01J35/101 ,  H02K7/09 ,  H01J2235/1026

    Abstract: The invention relates to an active magnetic suspension device of a rotor placed in a sealed enclosure. Each active radial bearing comprises a stator composed of electromagnetic windings associated with a magnetic yoke which has end pole pieces placed at a short distance from the annular armature mounted on the rotor, the electromagnetic windings being arranged outside the sealed enclosure. Each stator magnetic yoke of laminar material is extended at the level of the end pole pieces by a terminal portion of non-laminar material, of small thickness, which constitutes directly a portion of the wall of the sealed enclosure and is attached by welding to the non-magnetic sealed wall portions which are not situated facing the annular armature.

    Abstract translation: 本发明涉及一种放置在密封外壳中的转子的主动磁悬浮装置。 每个活动的径向轴承包括一个定子，该定子由与磁轭相关联的电磁绕组组成，该磁轭具有放置在与安装在转子上的环形电枢相距很短的距离处的端极片，电磁绕组被布置在密封外壳的外部。 层状材料的每个定子磁轭通过非薄层材料的端部部分在端极片的水平面延伸，其厚度直接构成密封外壳的壁的一部分，并且通过焊接附接到 不面向环形电枢的非磁性密封壁部分。

    X-ray tube with a rotary anode
    47.
    发明授权
    X-ray tube with a rotary anode 失效
    带旋转阳极的X射线管

    公开(公告)号：US3801846A

    公开(公告)日：1974-04-02

    申请号：US3801846D

    申请日：1973-03-15

    Applicant: SIEMENS AG

    Inventor： HABERRECKER K

    IPC: H01J35/10 ,  H02K7/14

    CPC classification number: H02K7/14 ,  H01J35/101 ,  H01J2235/1026

    Abstract: An X-ray tube wherein the anode is driven by an induction motor and is provided with a focal point, the cathode being directed upon the focal point path, the rotor of the motor being connected with the rotary axle of the anode and being located within the vacuum case, while the stator is located outside of the case, and wherein the case in the part between the rotor and the stator consists of metal. The tube is particularly characterized in that this metal part is a poor conductor of electrical current.

    Abstract translation: 一种X射线管，其中阳极由感应电动机驱动并且设置有焦点，阴极指向焦点路径，电动机的转子与阳极的旋转轴连接并位于 真空壳体，而定子位于壳体的外部，并且其中转子和定子之间的部分中的壳体由金属构成。 该管的特征在于该金属部件是不良的电流导体。

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