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公开(公告)号:US09044187B2
公开(公告)日:2015-06-02
申请号:US13992302
申请日:2011-12-02
申请人: Thomas Koehler , Holger Schmitt , Roland Proksa
发明人: Thomas Koehler , Holger Schmitt , Roland Proksa
CPC分类号: A61B6/4035 , A61B6/032 , A61B6/06 , A61B6/4241 , A61B6/4291 , A61B6/488 , A61B6/544 , G21K1/10
摘要: An imaging system includes a radiation source (310) configured to rotate around an examination region about a z-axis and having a focal spot that emits a radiation beam that traverses the examination region. The system further includes a radiation sensitive detector array (314) with a plurality of detector pixels that detects radiation traversing the examination region and generates projection data indicative of the detected radiation. The system further includes a dynamic post-patient filter (316) including one or more filter segments (402, 802, 902, 1004, 1102). The filter is configured to selectively and dynamically move in front of the detector array between the detector array and the examination region and into and out of a path of the radiation beam illuminating the detector pixels during scanning an object or subject based on a shape of the object or subject, thereby filtering unattenuated radiation and radiation traversing a periphery of the object or subject.
摘要翻译: 成像系统包括被配置为围绕z轴围绕检查区域旋转并具有发射穿过检查区域的辐射束的焦点的辐射源(310)。 该系统还包括具有多个检测器像素的辐射敏感检测器阵列(314),其检测穿过检查区域的辐射,并产生指示检测到的辐射的投影数据。 该系统还包括动态的患者后过滤器(316),其包括一个或多个过滤器段(402,802,902,1004,1102)。 滤波器被配置为在检测器阵列和检查区域之间选择性地和动态地在检测器阵列之前移动,并且在扫描对象或被摄体期间,在扫描对象或被摄体期间进入和离开照射检测器像素的辐射束的路径, 物体或物体,从而过滤未被衰减的辐射和穿过物体或物体的周边的辐射。
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公开(公告)号:US09002090B2
公开(公告)日:2015-04-07
申请号:US13988349
申请日:2011-11-16
CPC分类号: G06T11/005 , G06T11/008 , G06T2211/424
摘要: The invention relates to a forward projection apparatus for performing a forward projection through an image (22), wherein at least one of a number of rays (20, 21) for performing the forward projection, a ray spacing between the rays and a kernel width of an interpolation kernel for calculating interpolated values located on the rays is varied depending on the ray width relative to an effective image element spacing between image elements (24) of the image. This allows reducing artifacts in simulated projection data and, thus, in an image, which is iteratively reconstructed by using the simulated projection data. For example, if the number of provided rays and/or the ray spacing between the provided rays is varied, aliasing artifacts can be reduced. Moreover, if the ray spacing between the provided rays and/or the kernel width of the interpolation kernel is varied, artifacts caused by varying effective kernel widths may be reduced.
摘要翻译: 本发明涉及一种用于通过图像(22)进行向前投影的前投影装置,其中,用于执行向前投影的多个光线(20,21)中的至少一个,光线之间的光线间隔和核宽度 用于计算位于光线上的内插值的插值内核根据相对于图像的图像元素(24)之间的有效图像元素间隔的光线宽度而变化。 这允许减少模拟投影数据中的伪影,并因此减少通过使用模拟投影数据迭代重建的图像。 例如,如果提供的光线的数量和/或所提供的光线之间的光线间隔变化,则可以减少混叠伪影。 此外,如果所提供的光线之间的光线间距和/或内插核的内核宽度发生变化,则可能会降低由变化的有效内核宽度引起的伪影。
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公开(公告)号:US08748006B2
公开(公告)日:2014-06-10
申请号:US13262104
申请日:2010-03-10
申请人: Holger Schmitt , Thomas Enghof , Daniel Meister
发明人: Holger Schmitt , Thomas Enghof , Daniel Meister
CPC分类号: F16C33/12 , F16C33/122 , F16C33/124 , F16C33/127 , F16C2204/12 , F16C2220/20 , F16C2240/48 , Y10T428/12021 , Y10T428/12028 , Y10T428/12146
摘要: The invention relates to a slide bearing composite material having at least one carrier layer and a sintered bearing metal layer. The sintered bearing metal layer is designed in at least one layer region as a gradient layer.
摘要翻译: 本发明涉及一种滑动轴承复合材料,其具有至少一个载体层和一个烧结的轴承金属层。 烧结的轴承金属层被设计在至少一层作为梯度层的区域中。
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公开(公告)号:US20130318795A1
公开(公告)日:2013-12-05
申请号:US13985814
申请日:2011-10-27
IPC分类号: B23P15/00
CPC分类号: B23P15/003 , C21D9/40 , C22C21/00 , C22C21/003 , C22C21/02 , C22F1/04 , C22F1/043 , C23C30/00 , F16C9/04 , F16C33/121 , F16C33/14 , F16C2204/22 , F16C2220/02 , F16C2223/32 , Y02T10/865 , Y10T29/49641
摘要: In a method for producing a plain bearing, an aluminium-iron-silicon alloy is rolled onto a steel backing, wherein the ratio of iron to silicon is between 2:1 and 4:1. A plain bearing has a sliding surface of such an aluminium-iron-silicon alloy.
摘要翻译: 在制造滑动轴承的方法中,将铝 - 铁 - 硅合金轧制到钢背衬上,其中铁与硅的比例在2:1和4:1之间。 滑动轴承具有这种铝 - 铁 - 硅合金的滑动表面。
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公开(公告)号:US08206055B2
公开(公告)日:2012-06-26
申请号:US12084474
申请日:2006-10-26
申请人: Helmut Schäfer , Holger Schmitt
发明人: Helmut Schäfer , Holger Schmitt
IPC分类号: B25G3/28
CPC分类号: F16D1/06 , Y10T403/40 , Y10T403/7031 , Y10T403/7032 , Y10T403/7033
摘要: A coupling mechanism secures a shaft-to-collar connection for two shafts, such as an extension shaft stub and a tractor PTO shaft. An annular locking element on the first shaft prevents an axial disconnection of an established connection. One of the shafts has a collar with a positive engagement element for a locking engagement with the other shaft. The other shaft includes a positive engagement for a locking engagement with the collar. To enable an easier handling of the axial locking of the shaft to collar connection, the locking element includes a first set of teeth which are complementarily to a second set of teeth on the second shaft. The locking element is rotatably arranged on the first shaft and can be rotated from a locked position to an unlocked position. In the locked position the teeth overlap.
摘要翻译: 联接机构固定两个轴的轴对环连接,例如延伸轴短柱和拖拉机PTO轴。 第一轴上的环形锁定元件防止已建立的连接件的轴向断开。 其中一个轴具有带有用于与另一轴锁定接合的正接合元件的轴环。 另一个轴包括用于与套环锁定接合的正接合。 为了更容易地处理轴到轴环连接的轴向锁定,锁定元件包括与第二轴上的第二组齿互补的第一组齿。 锁定元件可旋转地布置在第一轴上并且可以从锁定位置旋转到解锁位置。 在锁定位置,牙齿重叠。
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公开(公告)号:US20100240464A1
公开(公告)日:2010-09-23
申请号:US12084474
申请日:2006-10-26
申请人: Helmut Schäfer , Holger Schmitt
发明人: Helmut Schäfer , Holger Schmitt
IPC分类号: F16D1/06
CPC分类号: F16D1/06 , Y10T403/40 , Y10T403/7031 , Y10T403/7032 , Y10T403/7033
摘要: The present invention relates to a device for securing a shaft to collar connection (16) of two shafts (12, 14), in particular for securing a PTO shaft stub (14) of a PTO shaft of a tractor. The device comprises a locking element (40) preventing a disconnection of an established shaft to collar connection (16) between the two shafts (12, 14) in axial direction. One of the two shafts (12) comprises a collar (15) with a positive engagement element (38) for a locking engagement with the other shaft (14). The other shaft (14) comprises a positive engagement (22) for a locking engagement with the shaft (12) comprising the collar (15). The locking element (40) is basically ring-shaped and arranged at the first of the two shafts (12). In order to enable an easier handling of the axial locking of the shaft to collar connection (16), it is suggested, that the locking element comprises a toothing (44), which is basically complementarily formed to the toothing (22) of the second of the two shafts (14). The locking element (40) is rotatably arranged on the first shaft (12) and can be rotated from a locked position to an unlocked position. In the locked position the toothing (22, 44) is arranged such that they overlap. In the unlocked position the toothing (22, 44) is arranged such that they do not overlap. The locking element (40) is arranged such that in the locked position of the locking element (40) an established shaft to collar connection (16) is secured by the engagement of the toothings (22, 44) of the two shafts (12, 14). Furthermore the present invention relates to a shaft (12) of the locking device.
摘要翻译: 本发明涉及一种用于将轴固定到两个轴(12,14)的套环连接件(16)的装置,特别是用于固定拖拉机的PTO轴的PTO轴短柱(14)。 该装置包括锁定元件(40),用于防止已建立的轴在轴向方向上在两个轴(12,14)之间断开颈圈连接部(16)。 两个轴(12)中的一个包括具有用于与另一轴(14)锁定接合的正接合元件(38)的轴环(15)。 另一个轴(14)包括用于与包括轴环(15)的轴(12)的锁定接合的正接合(22)。 锁定元件(40)基本上是环形的并且布置在两个轴(12)的第一个处。 为了能够更容易地处理轴到轴环连接件(16)的轴向锁定,建议锁定元件包括齿部(44),该齿部(44)基本上互补地形成于第二齿圈(22)的齿部(22) 的两个轴(14)。 锁定元件(40)可旋转地布置在第一轴(12)上并且可以从锁定位置旋转到解锁位置。 在锁定位置,齿(22,44)被布置成使得它们重叠。 在解锁位置,齿(22,44)被布置成使得它们不重叠。 锁定元件(40)被布置成使得在锁定元件(40)的锁定位置,通过两个轴(12,12)的齿轮(22,44)的接合来固定已建立的轴与套环连接件(16) 14)。 此外,本发明涉及锁定装置的轴(12)。
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公开(公告)号:US20080166578A1
公开(公告)日:2008-07-10
申请号:US11830913
申请日:2007-07-31
CPC分类号: F16C33/14 , B22F7/08 , B22F2998/10 , C22C1/0425 , C22C9/02 , C22C32/0021 , C22C32/0047 , F16C33/121 , F16C2204/10 , F16C2204/12 , F16C2220/20 , F16C2223/32 , Y02T10/865 , Y10T428/12014 , Y10T428/12049 , Y10T428/12056 , Y10T428/12063 , Y10T428/1209 , B22F3/10 , B22F3/18
摘要: A bearing having improved wear resistance has a bearing material of a copper-tin-bismuth alloy which may also include phosphorus which has excellent strength, due to the solid solution of copper, tin and phosphorus (when used), attached to a steel backing shell. The material also has good lubricity as a result of the presence of the bismuth which also promotes tin mobilization and formation of a layer of tin on the bearing surface upon use of the bearing. The addition of small amounts of relatively small hard particles in the copper-tin-matrix, particularly Fe3P, MoSi2 or a mixture thereof, provides a suitable hard surface artifact to improve the wear resistance of the bearing material. The bearing includes a sintered powder compact bearing material of a copper-tin-bismuth alloy powder and a metal compound powder which is bonded to a steel backing shell, wherein the metal compound powder has an average particle size of less than 10 μm.
摘要翻译: 具有改进的耐磨性的轴承具有铜 - 锡 - 铋合金的轴承材料,其也可以包括由于铜,锡和磷(当使用时)的固溶体而具有优异强度的磷,附着在钢背衬壳 。 由于铋的存在,该材料还具有良好的润滑性,其还在促使使用轴承时促进锡的移动和在轴承表面上形成锡层。 在铜 - 锡 - 基质,特别是Fe 3 P,MoSi 2 N或其混合物中加入少量相对小的硬颗粒提供了合适的硬表面伪影 以提高轴承材料的耐磨性。 该轴承包括铜 - 铋合金粉末的烧结粉末紧凑型轴承材料和与钢背衬壳结合的金属化合物粉末,其中金属化合物粉末的平均粒度小于10um。
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公开(公告)号:US06513976B2
公开(公告)日:2003-02-04
申请号:US09970636
申请日:2001-10-04
申请人: Harald Maiss , Richard Weidner , Günter Blaurock , Herbert Kirchner , Holger Schmitt , German Dütsch , Alfred Haub
发明人: Harald Maiss , Richard Weidner , Günter Blaurock , Herbert Kirchner , Holger Schmitt , German Dütsch , Alfred Haub
IPC分类号: F16C2906
CPC分类号: F16C29/082 , F16C29/005 , F16C29/064 , F16C29/0645 , F16C43/00
摘要: In a linear guide arrangement (10a) with an elongated guide rail (12a) and a guide carriage (14a) that can travel thereon in the lengthwise direction (L) of the guide rail (12a), a surface of the guide rail (12a) facing the guide carriage (14a) is covered by a cover band (24a). A band securing element (32a) is placed in the vicinity of each of the two longitudinal ends (30a) of the guide rail (12a). The two band securing elements (32a) jointly secure the cover band (24a) at least with respect to its displacement in lengthwise direction (L) of the guide rail (12a), wherein each of the band securing elements (32a) at least impedes movement of the cover band (24a) relative to the guide rail (12a) directed towards the other band securing element (32a). At least one of the band securing elements (32a) can be non-positively engaged with the cover band (24a) as well as with the guide rail (12a).
摘要翻译: 在具有细长导轨(12a)的直线引导装置(10a)和能够在导轨(12a)的长度方向(L)上行进的引导滑架(14a)上,导轨(12a)的表面 )面向导向架(14a)被盖带(24a)覆盖。 带固定元件(32a)被放置在导轨(12a)的两个纵向端部(30a)中的每一个附近。 两个带固定元件(32a)至少相对于其在导轨(12a)的长度方向(L)上的位移共同固定盖带(24a),其中每个带固定元件(32a)至少阻碍 所述盖带(24a)相对于所述导轨(12a)指向另一带固定元件(32a)的运动。 带固定元件(32a)中的至少一个可以与盖带(24a)以及导轨(12a)非积极地接合。
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