利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

29 条记录 (耗时 0.02 秒)

    X-ray tubes and x-ray systems having a thermal gradient device
    1.
    发明授权
    X-ray tubes and x-ray systems having a thermal gradient device 失效
    具有热梯度装置的X射线管和X射线系统

    公开(公告)号：US06377659B1

    公开(公告)日：2002-04-23

    申请号：US09751529

    申请日：2000-12-29

    申请人： Douglas J. Snyder ,  Eric Chabin

    发明人： Douglas J. Snyder ,  Eric Chabin

    IPC分类号： H01J3510

    CPC分类号： H01J35/105 ,  H01J2235/1204 ,  H01J2235/1245 ,  H01J2235/1287

    摘要： A thermal energy transfer device for use with an x-ray generating device or x-ray system including an anode assembly having a target, a cathode assembly positioned at a distance from the anode assembly configured to emit electrons that strike the target producing x-rays and residual energy in the form of heat, and a rotatable shaft supported by a bearing assembly. The thermal energy transfer device including a thermal gradient device positioned adjacent to and in thermal communication with one end of the shaft, the thermal gradient device operable for transferring heat away from that end of the shaft, and a fin structure positioned adjacent to and in thermal communication with the thermal gradient device, the fin structure operable for convectively cooling the thermal gradient device.

    摘要翻译： 一种与X射线产生装置或x射线系统一起使用的热能传递装置，其包括具有目标的阳极组件，阴极组件位于离阳极组件一定距离处，该阴极组件配置成发射撞击靶的电子产生X射线 和以热的形式的残余能量，以及由轴承组件支撑的可旋转轴。 所述热能传递装置包括邻近所述轴的一端定位并与所述轴的一端热连通的所述热梯度装置，所述热梯度装置可操作以将热量从所述轴的端部传送出去，以及翅片结构，所述翅片结构邻近并处于热 与热梯度装置的通信，翅片结构可操作用于对流冷却热梯度装置。

    Cooled gas turbine engine component
    3.
    发明授权
    Cooled gas turbine engine component 有权
    冷却燃气轮机组件

    公开(公告)号：US09157328B2

    公开(公告)日：2015-10-13

    申请号：US13334751

    申请日：2011-12-22

    申请人： J. Edward Pope ,  Jeffery Forest Rhodes ,  Douglas J. Snyder

    发明人： J. Edward Pope ,  Jeffery Forest Rhodes ,  Douglas J. Snyder

    IPC分类号： F01D5/18 ,  F01D25/12

    CPC分类号： F01D5/186 ,  F01D25/12 ,  F05D2250/70 ,  Y02T50/676

    摘要： A gas turbine engine component is disclosed having a cooling fluid passageway that provides relatively cool fluid to a surface of the gas turbine engine component. The cooling fluid passageway can be shaped in cross section to reduce a stress present in the gas turbine engine component. One form of the shape is non-circular. The gas turbine engine component can be formed such that an overhanging material otherwise formed by the intersection of a cooling fluid passageway and a surface of the gas turbine engine component is absent. The gas turbine engine component can also have a depression formed near the surface of the gas turbine engine component such that the cooling fluid passageway exits into an upstream portion and a downstream portion of the depression.

    摘要翻译： 公开了一种燃气涡轮发动机部件，其具有向燃气涡轮发动机部件的表面提供相对较冷的流体的冷却流体通道。 冷却流体通道可以被成形为横截面以减少存在于燃气涡轮发动机部件中的应力。 形状的一种形式是非圆形。 燃气涡轮发动机部件可以形成为不存在由冷却流体通路和燃气涡轮发动机部件的表面相交而形成的悬垂材料。 燃气涡轮发动机部件还可以具有靠近燃气涡轮发动机部件的表面形成的凹部，使得冷却流体通道离开凹陷的上游部分和下游部分。

    Thermoelectrically controlled X-ray detector array statement regarding federally sponsored research
    4.
    发明授权
    Thermoelectrically controlled X-ray detector array statement regarding federally sponsored research 有权
    关于联邦赞助研究的热电控X射线探测器阵列声明

    公开(公告)号：US07135687B2

    公开(公告)日：2006-11-14

    申请号：US10716367

    申请日：2003-11-18

    申请人： Joseph J. Lacey ,  Lee F. Wichlacz ,  Douglas J. Snyder

    发明人： Joseph J. Lacey ,  Lee F. Wichlacz ,  Douglas J. Snyder

    IPC分类号： A61B6/00 ,  G01N23/083 ,  H05G1/60 ,  G01T1/24 ,  H01L25/065 ,  H01L27/146

    CPC分类号： A61B6/035 ,  A61B6/4488

    摘要： Disclosed is an X-ray detector assembly for use in a computed tomography system. The X-ray detector assembly comprises an array of detector cells coupled between two rails. A thermoelectric cooler is coupled to an end of each of the rails, and is controlled to alternatively heat or cool the detector array to maintain the array in a substantially isothermal and thermally stable condition. The detector assembly preferably includes both passive and active cooling devices and insulation materials for controlling the temperature of the detector assembly. An electrical heater coupled at the center of the detector array can be used in conjunction with the TEC's to control the temperature profile of the detector array, and to minimize changes in the temperature gradients.

    摘要翻译： 公开了一种用于计算机断层摄影系统的X射线检测器组件。 X射线检测器组件包括耦合在两个轨道之间的检测器单元的阵列。 热电冷却器耦合到每个轨道的端部，并且被控制以交替地加热或冷却检测器阵列以将阵列保持在基本上等温和热稳定的状态。 检测器组件优选地包括用于控制检测器组件的温度的无源和主动冷却装置和绝缘材料。 耦合在检测器阵列中心的电加热器可与TEC结合使用，以控制检测器阵列的温度分布，并使温度梯度的变化最小化。

    Thermal filter for an x-ray tube window
    5.
    发明授权
    Thermal filter for an x-ray tube window 失效
    X射线管窗口的热过滤器

    公开(公告)号：US06301332B1

    公开(公告)日：2001-10-09

    申请号：US09723932

    申请日：2000-11-28

    申请人： Carey S. Rogers ,  Charles B. Kendall ,  Douglas J. Snyder ,  Brian D. Lounsberry

    发明人： Carey S. Rogers ,  Charles B. Kendall ,  Douglas J. Snyder ,  Brian D. Lounsberry

    IPC分类号： H01J3516

    CPC分类号： H01J35/105 ,  H01J35/18 ,  H05G1/025 ,  H05G1/04

    摘要： A thermal energy storage and transfer assembly is disclosed for use in electron beam generating devices that generate residual energy. The residual energy comprises radiant thermal energy and kinetic energy of back scattered electrons. The thermal energy storage and transfer assembly absorbs and stores an amount of the residual energy to reduce the heat load on other components in the electron beam generating device. The thermal energy storage and transfer device comprises a body portion of a sufficient thermal capacity to permit the rate of transfer of the amount of the residual energy absorbed into the assembly to substantially exceed the rate of transfer of the amount of the residual energy out of the assembly. The assembly also comprises a heat exchange chamber filled with a circulating fluid that transfers the thermal energy out of the assembly. Additionally, in an x-ray generating device, an x-ray transmissive filter suitable for absorbing residual energy is positioned between the anode and an x-ray transmissive window. The filter reduces the exposure of the window to the residual energy. The filter may additionally comprise a coating layer that further reduces the exposure of the window to the residual energy.

    摘要翻译： 公开了用于产生残余能量的电子束产生装置中的热能存储和转移组件。 剩余能量包括辐射热能和背散射电子的动能。 热能储存和转移组件吸收和储存一定量的剩余能量以减少电子束发生装置中其它部件上的热负荷。 热能储存和转移装置包括具有足够热容量的主体部分，以允许吸收到组件中的剩余能量的量的转移速率基本上超过剩余能量的转移速率 部件。 组件还包括填充有循环流体的热交换室，该循环流体将热能转移出组件。 另外，在x射线产生装置中，适于吸收残余能量的x射线透射滤光器位于阳极和x射线透射窗之间。 过滤器可以减少窗口对剩余能量的暴露。 过滤器可以另外包括涂层，其进一步减少窗口暴露于剩余能量。

    X-ray detector array maintained in isothermal condition
    6.
    发明授权
    X-ray detector array maintained in isothermal condition 失效
    X射线探测器阵列保持等温条件

    公开(公告)号：US06249563B1

    公开(公告)日：2001-06-19

    申请号：US09456629

    申请日：1999-12-08

    申请人： Douglas J. Snyder ,  Carey S. Rogers ,  Brian J. Graves

    发明人： Douglas J. Snyder ,  Carey S. Rogers ,  Brian J. Graves

    IPC分类号： G01N2300

    CPC分类号： G01N23/046 ,  A61B6/035 ,  A61B6/4488 ,  G01N2223/419

    摘要： X-ray detector apparatus is provided for use in a CT imaging system having a rotatable gantry. The apparatus comprises a selected number of X-ray detector cells and two curved rails, which hold the detector cells in an array comprising an arcuate configuration and mount them onto the gantry for rotation therewith. Conduit segments are distributed along the rails, each conduit segment being proximate to a corresponding group of X-ray detector cells, and a quantity of selected working fluid and a porous wick structure is sealably enclosed in each conduit segment. The fluid is disposed to move along a conduit segment in gaseous form by means of convection, and to move in the opposing direction through the wick structure, in liquid form, by means of capillary action Heat is thereby transferred along a conduit segment to maintain a substantially isothermal condition among the detector cells proximate thereto.

    摘要翻译： 提供X射线检测器装置用于具有可旋转机架的CT成像系统。 该装置包括选定数量的X射线检测器单元和两个弯曲轨道，其将检测器单元保持在包括弓形构造的阵列中并将其安装到台架上以与其一起旋转。 导管段沿轨道分布，每个导管段接近相应的一组X射线探测器单元，并且一定数量的所选择的工作流体和多孔芯结构可密封地封闭在每个导管段中。 流体被设置成通过对流沿气体形式的管道段移动，并且通过毛细管作用以液体形式沿相反方向移动通过芯结构，由此沿着导管段传递以保持一个 接近其的检测器单元之间的基本等温条件。

    X-ray tube and method having tilted rotation axis
    8.
    发明授权
    X-ray tube and method having tilted rotation axis 失效
    具有倾斜旋转轴的X射线管和方法

    公开(公告)号：US06704392B2

    公开(公告)日：2004-03-09

    申请号：US09898760

    申请日：2001-07-03

    申请人： Thomas G. Ebben ,  Douglas J. Snyder

    发明人： Thomas G. Ebben ,  Douglas J. Snyder

    IPC分类号： H01J3510

    CPC分类号： A61B6/4447 ,  A61B6/4021 ,  H01J35/101 ,  H05G1/02

    摘要： A computed tomography system comprises a gantry and an x-ray tube. The gantry rotates about a gantry axis of rotation. The x-ray tube is mounted to the gantry, and comprises a rotatable assembly having a tube axis of rotation. The tube axis of rotation is angularly displaced from the gantry axis of rotation by a tilt angle. Rotation of the x-ray tube about the gantry axis of rotation produces a first moment, and rotation of the rotatable assembly about the tube axis of rotation produces a second moment that opposes the first moment.

    摘要翻译： 计算机断层摄影系统包括台架和X射线管。 龙门架围绕龙门轴线旋转。 X射线管安装在台架上，并且包括具有管轴旋转的可旋转组件。 管轴旋转角度从台架旋转轴线偏移倾斜角。 X射线管围绕机架旋转轴的旋转产生第一时刻，并且旋转组件围绕管轴旋转的旋转产生与第一时刻相对的第二时刻。

    Multiple row spiral groove bearing for X-ray tube
    10.
    发明授权
    Multiple row spiral groove bearing for X-ray tube 失效
    多列螺旋槽轴承用于X射线管

    公开(公告)号：US06456693B1

    公开(公告)日：2002-09-24

    申请号：US09681466

    申请日：2001-04-12

    申请人： Paul M. Ratzmann ,  Douglas J. Snyder

    发明人： Paul M. Ratzmann ,  Douglas J. Snyder

    IPC分类号： H01J3510

    CPC分类号： H01J35/101 ,  H01J2235/1053 ,  H01J2235/1086

    摘要： A multiple row spiral grooved bearing assembly 26 for use in a rotating anode X ray tube device 10 has an intermediate race 32 having a spiral grooved inner 34 and outer 36 surface placed between an outer housing 28 and an inner bearing shaft 30. A layer of gallium 42, 44 is interposed between the spiral grooved inner surface 34 and the inner bearing shaft 30 and between the spiral grooved outer surface 36 and outer housing 28 to provide lubrication for the surfaces of the intermediate race 32. The intermediate race 32 reduces the relative velocity between moving parts, thereby reducing heat generation of the bearing assembly 26 for a given anode rotation speed. This enables higher target 14 velocities, and hence higher focal spot power, available to the x-ray tube device 10 as compared with traditional ball-type bearing designs.

    摘要翻译： 在旋转阳极X射线管装置10中使用的多排螺旋槽状轴承组件26具有中间座圈32，其具有设置在外壳体28和内轴承轴30之间的螺旋槽内部34和外部36表面。 镓42,44插入在螺旋槽内表面34和内轴承轴30之间以及螺旋槽外表面36和外壳28之间，以为中间座圈32的表面提供润滑。中间座圈32减小了相对 运动部件之间的速度，从而在给定的阳极转速下减少轴承组件26的热量产生。 与传统的球型轴承设计相比，这使得X射线管装置10能够获得更高的目标14速度，因此可以获得更高的焦斑功率。