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    • 53. 发明授权
    • Superconducting wire and method of producing the same
    • 超导线及其制造方法
    • US6103669A
    • 2000-08-15
    • US448137
    • 1995-05-23
    • Akira OkayamaMichiya OkadaTadaoki MorimotoToshimi MatsumotoYoshimi YanaiHiroshi SatohToshiya DoiKazuhide TanakaTakahiko Kato
    • Akira OkayamaMichiya OkadaTadaoki MorimotoToshimi MatsumotoYoshimi YanaiHiroshi SatohToshiya DoiKazuhide TanakaTakahiko Kato
    • H01B12/04H01B13/00H01L39/14H01L39/24
    • H01L39/143H01L39/248Y10T29/49014
    • This invention provides an oxide-type superconducting flat wire having a critical current density of at least 1,000 A/cm.sup.2, which comprises a Y--Ba--Cu oxide layer having a superconducting property and a silver layer surrounding the oxide layer and has so flat a cross section vertical to the longitudinal direction of the wire that the upper and lower lines between the oxide layer and the silver layers appearing on the cross section having a zone over they are parallel to each other, the thickness of the oxide layer being cold rolled in the range of 0.35 to 0.75 based on the whole thickness of the wire, the whole thickness being 0.2 mm or less, and the metal layer being deformable to follow the shrink deformation of the oxide layer when heat treated to be sintered, but rigid when used. This flat wire is produced by filling a silver-made tube with a Y--Ba--Cu oxide powder having a superconducting property, drawing the tube into a rod wire having a round cross section, then cold rolling the rod wire in the flat wire so that (t.sub.i -t)/t.sub.i .times.100 is equal to or greater than 90%, wherein t.sub.i is the whole thickness of the cross section of the rod wire before the cold rolling and t is the whole thickness of the cold-rolled flat wire, and then heat treating the flat wire to sinter the superconducting oxide.
    • 本发明提供了具有至少1000A / cm 2的临界电流密度的氧化物型超导扁线,其包括具有超导特性的Y-Ba-Cu氧化物层和围绕氧化物层的银层,并且具有如此平坦的 横截面垂直于导线的纵向方向,在它们之间具有区域的横截面上出现的氧化物层和银层之间的上下线之间彼此平行,氧化层的厚度被冷轧 基于整个线材的0.35至0.75的范围,整个厚度为0.2mm或更小,并且当热处理烧结时,金属层可变形以跟随氧化物层的收缩变形,但是当使用时是刚性的 。 该扁线通过用具有超导特性的Y-Ba-Cu氧化物粉末填充银制管而制成,将管拉成具有圆形横截面的棒丝,然后将扁丝中的棒丝冷轧 (ti-t)/ tix100等于或大于90%,其中ti是冷轧前棒丝的横截面的整个厚度,t是冷轧扁丝的整个厚度, 然后对扁线进行热处理以烧结超导氧化物。
    • 56. 发明授权
    • Fuel pump
    • 燃油泵
    • US5372475A
    • 1994-12-13
    • US42267
    • 1993-04-02
    • Takahiko KatoMotoya Ito
    • Takahiko KatoMotoya Ito
    • F02M37/04F04D5/00F04D29/18F04D17/06
    • F04D29/188F02M37/048F04D5/002
    • A Westco type fuel pump includes an impeller (32) which has a plurality of vane grooves (322) and a plurality of vane plates (323) provided alternately along its outer periphery. Each vane groove (322) is constituted by groove portions (322a, 322b) formed in both sides of the impeller (32), respectively, with a partition wall (321) provided between the groove portions (322a, 322b). The partition wall has an outer peripheral surface (3210) located radially inside an outer peripheral surface (3230) of each vane plate (323) and has a predetermined thickness in an axial direction of the impeller. As the impeller (32) rotates, two vortex flows of fuel are generated along bottom surfaces (3221, 3222) of the groove portions (322a, 322b) and then smoothly merge together at a position outside the outer peripheral surface (3210) of the partition wall, thereby reducing a flow dead zone (96) in a pump flow passage (33). When the impeller (32) is molded by using molds, deformation of the molded impeller is prevented due to the thickness of the outer peripheral surface (3210). Of the surfaces of the impeller (32), therefore, the surfaces of each vane groove remain as they are after the molding, while both sides of the impeller (32) and the outer peripheral surfaces (3230) of the vane plates (323) are ground. Thus, the impeller (32) able to surely achieve a high level of pump performance can be easily provided by resin molding.
    • 一种Westco型燃料泵包括具有沿其外周交替设置的多个叶片槽322和多个叶片板323的叶轮32。 每个叶片槽322由形成在叶轮32的两侧的槽部322a,322b构成,分隔壁321设置在槽部322a,322b之间)。 隔壁具有位于各叶片板323的外周面3230的径向内侧的外周面3210,并且在叶轮的轴向上具有规定的厚度。 当叶轮(32)旋转时,沿凹槽部分(322a,322b)的底表面(3221,3222)产生两个燃料涡流,然后在外部周边表面(3210)外侧的位置处平滑地合并在一起 从而减少泵流道(33)中的流动死区(96)。 当通过模具模制叶轮(32)时,由于外周面(3210)的厚度,防止了模制叶轮的变形。 因此,在叶轮(32)的表面中,每个叶片槽的表面在模制之后保持原样,而叶轮(32)的两侧和叶片板(323)的外周面(3230) 是地面的 因此,可以容易地通过树脂成型提供能够确实获得高水平的泵性能的叶轮(32)。