Vibration damping for a rotating shaft
    21.
    发明申请
    Vibration damping for a rotating shaft 有权
    旋转轴的振动阻尼

    公开(公告)号:US20090015085A1

    公开(公告)日:2009-01-15

    申请号:US10573634

    申请日:2005-10-11

    申请人: Tsuyoshi Nakajima

    发明人: Tsuyoshi Nakajima

    IPC分类号: H02K5/16 F01M1/16

    摘要: The invention provides damping techniques for a rotating shaft. The rotating shaft is supported by rotary bearings. The damping techniques control vibration of the rotating shaft by creating a fluid film in a support element of the rotating shaft. For example, the fluid film may be created between a housing and the rotary bearings. The fluid may be supplied by a pump, and the supply amount of fluid to create the fluid film is relative to the rotational velocity of the shaft. Vibration can be prevented for every operational rotational velocity of the rotating shaft. In some embodiments, the rotating shaft may be powered by or part of an electric motor for a vehicle.

    摘要翻译: 本发明提供了一种用于旋转轴的阻尼技术。 旋转轴由旋转轴承支撑。 阻尼技术通过在旋转轴的支撑元件中产生流体膜来控制旋转轴的振动。 例如,流体膜可以在壳体和旋转轴承之间产生。 流体可以由泵提供,并且用于产生流体膜的流体的供给量相对于轴的旋转速度。 可以防止旋转轴的每个操作旋转速度的振动。 在一些实施例中,旋转轴可以由用于车辆的电动机的一部分供电。

    Vehicular drive unit
    22.
    发明申请
    Vehicular drive unit 审中-公开
    车载驱动单元

    公开(公告)号:US20070209853A1

    公开(公告)日:2007-09-13

    申请号:US11714655

    申请日:2007-03-06

    申请人: Tsuyoshi Nakajima

    发明人: Tsuyoshi Nakajima

    IPC分类号: B60K1/00

    摘要: A drive unit is provided for driving a wheel installed on a vehicle. The drive unit includes a driving source equipped with a rotary shaft. A speed reducer is connected between the driving source and the wheel so as to reduce the rotational speed of the rotary shaft and transmit the reduced rotational speed to the wheel. A brake unit is provided having a rotary member rotationally connected to the speed reducer on a side of the speed reducer opposite from the wheel so as to brake the rotation of the wheel through the speed reducer.

    摘要翻译: 提供驱动单元来驱动安装在车辆上的车轮。 驱动单元包括配备有旋转轴的驱动源。 减速器连接在驱动源和车轮之间,以便减小旋转轴的旋转速度并将减小的转速传递到车轮。 一种制动单元,其具有旋转构件,该旋转构件在与减速器相反的一侧与减速器旋转地连接,以通过减速器制动车轮的旋转。

    Method and system for detecting a defect in projected portions of an object having the projected portions formed in the same shape with a predetermined pitch along an arc
    23.
    发明授权
    Method and system for detecting a defect in projected portions of an object having the projected portions formed in the same shape with a predetermined pitch along an arc 失效
    用于检测具有沿着弧形以预定间距以相同形状形成的突出部分的物体的突出部分中的缺陷的方法和系统

    公开(公告)号:US06836561B2

    公开(公告)日:2004-12-28

    申请号:US09854607

    申请日:2001-05-15

    IPC分类号: G06K900

    摘要: A defect detection method and system which can provide a precise determination of whether an object is acceptable without being affected by the position of placement and the rotational orientation of the object. An arc circumscribing the tip of modules of a sprocket is determined. Then, each overlapping region is extracted which is formed by an overlapping portion between an inner portion of a region defined by the arc and the cut-away portion of the sprocket. The area of each overlapping region is determined and compared with each other. In accordance with a determination of whether each area difference falls within the predetermined range of criteria &egr;, it is determined whether a chipped portion exists on the tip of module. If there is a chipped portion on the tip of module, two or more overlapping regions are integrated with each other to form a larger overlapping region, thereby making it possible to determine easily and positively the presence of a chipped portion on the tip of module.

    摘要翻译: 一种缺陷检测方法和系统,其能够精确地确定物体是否可接受,而不受放置位置和物体的旋转取向的影响。 确定围绕链轮的模块的末端的圆弧。 然后,通过由电弧限定的区域的内部与链轮的切除部分之间的重叠部分形成每个重叠区域。 确定每个重叠区域的面积并将其进行比较。 根据每个面积差是否落在标准ε的预定范围内的确定,确定在模块的尖端上是否存在切屑部分。 如果在模块的尖端上存在切屑部分,则两个或更多个重叠区域彼此成一体以形成较大的重叠区域,从而可以容易且肯定地确定模块尖端上的切屑部分的存在。

    Nuclear fuel assembly and nuclear reactor incorporating the same
    25.
    发明授权
    Nuclear fuel assembly and nuclear reactor incorporating the same 失效
    核燃料组装和核反应堆并入其中

    公开(公告)号:US5544211A

    公开(公告)日:1996-08-06

    申请号:US321618

    申请日:1994-10-12

    摘要: A fuel assembly has part length and full length fuel rods, and a pair of large-diameter water rods which occupy an area which can accommodate 7 fuel rods. Natural uranium regions are provided in the upper and lower end portions of the effective fuel zone of the fuel assembly. An intermediate region between these upper and lower natural uranium regions provides an enriched uranium region which has three axial sections: an upper section, a middle section and a lower section. The middle section has the highest average enrichment, the lower section has the medium average enrichment and the upper section has the smallest average enrichment. The difference in the average enrichment between the middle section and the lower section is smaller than that between the middle section and the upper section. The upper section has a lower concentration of burnable poison than other sections of the enriched uranium region. According to this arrangement, a greater burn-up degree of the fuel assembly can be achieved with minimal increment of the average enrichment, while preserving sufficiently large safety margin such as the thermal margin of the reactor and the reactor cold shut down margin.

    摘要翻译: 燃料组件具有部件长度和全长燃料棒,以及一对大直径水棒,其占据可容纳7个燃料棒的区域。 天然铀区设置在燃料组件的有效燃料区的上端部和下端部。 这些上部和下部天然铀区域之间的中间区域提供了具有三个轴向部分的浓缩铀区域:上部分,中间部分和下部分。 中段平均浓度最高,下段中等浓度富集,上段平均浓度最小。 中段与下段之间的平均富集差异小于中段与上段之间的平均浓度差。 上段与浓缩铀区其他部分的可燃毒物浓度较低。 根据这种布置,燃料组件的燃烧程度可以以平均富集的最小增量实现,同时保持足够大的安全裕度,例如反应堆的热裕度和反应堆的冷关闭余量。

    Fuel assembly for boiling water reactor and core
    26.
    发明授权
    Fuel assembly for boiling water reactor and core 失效
    用于沸水反应堆和核心的燃料组件

    公开(公告)号:US5367547A

    公开(公告)日:1994-11-22

    申请号:US79527

    申请日:1993-06-22

    IPC分类号: G21C3/328 G21C3/32

    摘要: A fuel assembly for a boiling water reactor comprising an upper and lower tie plates, a plurality of fuel rods filled therein with a plurality of fuel pellets, a fuel bundle comprising the fuel rods retained with a plurality of spacers in spaced relation and disposed between the upper and lower tie plates, and a polygonal tube-like channel box which encloses the fuel bundle and constitutes flow paths for coolant. The fuel rods comprise long fuel rods and short fuel rods which are each shorter in the effective portion than each of the long fuel rods. The concentration of fissile material in each of the short fuel rods is lower than the mean concentration of fissile material in the cross section of the fuel bundle. In the case the fuel bundle is vertically subdivided into two regions, an upper and lower one, with the upper end of the effective portion of each of the short fuel rods as a border, the mean concentration of fissile material in the cross section of the fuel bundle in the region lower than the border is lower than that in the cross section of the fuel bundle in the region above the border.

    摘要翻译: 一种用于沸水反应器的燃料组件,包括上和下连接板,多个燃料棒,其中填充有多个燃料颗粒,燃料束,包括燃料棒,所述燃料棒具有间隔开的多个间隔件并且设置在所述燃料棒之间 上下连接板和封闭燃料束的多边形管状通道箱,并构成冷却剂的流动路径。 燃料棒包括长燃料棒和短燃料棒,其有效部分比每个长燃料棒短。 每个短燃料棒中的易裂变材料的浓度低于燃料束截面中易裂变材料的平均浓度。 在燃料束垂直分为两个区域的情况下,上,下一个,短燃料棒的有效部分的上端作为边界,在该截面中的裂变材料的平均浓度 在低于边界的区域中的燃料束比在边界上方的燃料束的横截面中低。

    Signal processing system for flow velocity in laser doppler velocimeter
    27.
    发明授权
    Signal processing system for flow velocity in laser doppler velocimeter 失效
    激光多普勒测速仪中流速信号处理系统

    公开(公告)号:US5005144A

    公开(公告)日:1991-04-02

    申请号:US378098

    申请日:1989-07-10

    CPC分类号: G01P5/26

    摘要: A period of a correlation signal from a laser Doppler velocimeter is calculated from crossing points at which a correlation function crosses over a threshold level by clipping and digitizing a Doppler burst signal, thereby enabling an accurate and real time measurement to be made of a flow velocity, even in low SNR Doppler signals. Smoothing the waveform of a correlation signal further improves measurement accuracy. When the threshold level is set to be the 1/2 value of the autocorrelation function at .tau.=0, a crossing point is precisely detected even in an uneven correlation function or small amplitude of the crosscorrelation function, thus further increasing measurement accuracy.

    摘要翻译: 通过削波和数字化多普勒脉冲串信号来计算来自激光多普勒测速仪的相关信号的周期,其中相关函数跨过阈值电平的交叉点,从而能够进行精确和实时的测量, ,即使在低SNR多普勒信号中。 平滑相关信号的波形进一步提高了测量精度。 当在τ= 0时将阈值电平设置为自相关函数的1/2值时,即使在相关函数不均匀或相关函数的小幅度下也精确地检测出交叉点,因此进一步提高了测量精度。

    Ternary intercalation compound of a graphite with a metal fluoride and
fluorine, a process for producing the same, and an electrically
conductive material comprising the ternary intercalation compound
    28.
    发明授权
    Ternary intercalation compound of a graphite with a metal fluoride and fluorine, a process for producing the same, and an electrically conductive material comprising the ternary intercalation compound 失效
    具有金属氟化物和氟的石墨的三元插层化合物,其制备方法和包含三元嵌入化合物的导电材料

    公开(公告)号:US4477374A

    公开(公告)日:1984-10-16

    申请号:US394530

    申请日:1982-07-02

    IPC分类号: C01B31/00 H01B1/06 H01B1/02

    CPC分类号: H01B1/06 C01B31/0415

    摘要: A novel ternary intercalation compound of a graphite with a metal fluoride and fluorine, which is represented by the formula C.sub.x F(MF.sub.z).sub.y wherein M is Al or Mg and z is an integer corresponding to the valence of M, is produced by contacting a graphite material with a metal fluoride selected from AlF.sub.3 and MgF.sub.2 in an atmosphere of fluorine gas at a temperature of 0.degree. C. to 400.degree. C. for at least a period of time to effect a weight increase in the graphite. The ternary graphite intercalation compound thus obtained has not only an excellent stability to humidity or moisture but also a high electrical conductivity. The novel ternary graphite intercalation compound according to the present invention may be practically used as a novel electrically conductive material and a catalyst of organic reactions.

    摘要翻译: 由式CxF(MFz)y表示的具有金属氟化物和氟的石墨的新型三元插层化合物,其中M为Al或Mg,z为与M的化合价对应的整数,是通过使石墨 在氟气气氛中,在0℃〜400℃的温度下,选择AlF 3,MgF 2的金属氟化物的材料至少一段时间,以使石墨的重量增加。 由此获得的三元石墨插入化合物不仅对湿度或湿度具有优异的稳定性,而且具有高导电性。 根据本发明的新型三元石墨插层化合物可以实际上用作新的导电材料和有机反应的催化剂。

    Rubber composition for golf ball
    29.
    发明授权
    Rubber composition for golf ball 有权
    高尔夫球用橡胶组合物

    公开(公告)号:US08822577B2

    公开(公告)日:2014-09-02

    申请号:US13301342

    申请日:2011-11-21

    CPC分类号: C08K5/098 C08K5/18 C08L21/00

    摘要: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a diphenylamine of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 5, and n is an integer from 1 to 4, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.

    摘要翻译: 本发明提供了一种高尔夫球用橡胶组合物,其包含(A)含有顺式-1,4键含量为至少60重量%的聚丁二烯的基础橡胶,(B)不饱和羧酸和/或其金属盐 和(C)通式的二苯胺其中R 1和R 2各自独立地为氢原子或1〜20个碳的烃基,m为1〜5的整数,n为1〜4的整数, 条件是如果m和/或n为2以上,则R1和R2的每次出现可以相同或不同。 本发明的高尔夫球橡胶组合物能够获得具有合适的硬度和高弹性的高品质的模制和交联的产品。