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    • 9. 发明授权
    • Toothed sintered pulley
    • 齿形烧结带轮
    • US4952199A
    • 1990-08-28
    • US386077
    • 1989-07-28
    • Tsutomu SakaKatsuaki Sato
    • Tsutomu SakaKatsuaki Sato
    • F16H55/17
    • F16H55/171
    • In a toothed sintered pulley comprising a rim having a large number of teeth on its outer peripheral surface and lightening grooves at those portions of its inner peripheral surface which correspond to the individual teeth, a boss located radially inside of the rim, and a connection which connects the inner peripheral surface of the rim with an outer peripheral surface of the boss, the porosity of the rim is set larger than that of the boss. In addition, the connection is connected to axially intermediate portions of the inner peripheral surface of the rim, and lands are provided in a one-side half of the rim projecting from this connection in one of axial directions, so that each land is located between the two adjacent lightening grooves, with the radial thickness of the land being gradually increased from an outer end face of the one-side half toward the connection. This makes it possible to provide a toothed sintered pulley which is lightweight; in which any backlash noise due to meshing of the rim with a belt can be reduced, and the strength of the boss cannot be injured, and in which the rigidity of the one-side half in the rim is improved while suppressing the increase in weight thereof to the utmost.
    • 在一种齿形烧结带轮中,包括在其外周表面上具有大量齿的边缘和对应于各个齿的内周表面的那些部分处的减光槽,位于轮辋径向内侧的凸台和连接件 将边缘的内周面与凸台的外周面连接,将轮辋的孔隙设定得大于凸台的孔隙率。 另外,连接件连接到轮辋的内周表面的轴向中间部分,并且在轴向方向上从该连接突出的边缘的一侧的一侧设置有平台,使得每个平台位于 两个相邻的发光槽,其中脊的径向厚度从一侧半部的外端面朝着连接逐渐增大。 这使得可以提供重量轻的齿形烧结带轮; 其中可以减少由于轮辋与带的啮合而产生的任何间隙噪声,并且凸台的强度不会受到损伤,并且其中边缘中的一侧半部的刚度在改善同时抑制重量增加 最大限度地。
    • 10. 发明授权
    • Heat resistant alloy for use as material of engine valve
    • 用作发动机阀门材料的耐热合金
    • US07481970B2
    • 2009-01-27
    • US11134329
    • 2005-05-23
    • Akihiro TojiToshihiro UeharaKatsuhiko TominagaShoichi NakayaKatsuaki Sato
    • Akihiro TojiToshihiro UeharaKatsuhiko TominagaShoichi NakayaKatsuaki Sato
    • C22C19/051
    • C22C19/051
    • A low cost, economical and less resource-consuming heat resistant alloy for use as material of engine valve is disclosed, while the alloy has excellent mechanical properties at high temperature and excellent toughness after heated for a long time that conventional heat resistant alloys have not had. The alloy consists essentially of, in mass percent, C of 0.01 to 0.15%, Si of 0.01 to 0.8%, Mn of 0.01 to 0.8, Cr of 14 to 17%, Mo of more than 3.0% but equal to or less than 5.0%, Al of 1.6 to 2.5%, Ti of 1.5 to 3.0%, Nb or Nb+Ta of 0.5 to 2.0%, Ni of 50 to 60%, B of 0.001 to 0.015%, at least one of Mg of 0.001 to 0.015% and Ca of 0.001 to 0.015%, and the balance being Fe, wherein value A defined by 0.293[Ni]−0.513[Cr]−1.814[Mo] is 2.0 to 5.8, value B defined by [Al]/([Al]+[Ti]+[Nb]+[Ta]) is 0.45 to 0.65, and value C defined by [Al]+[Ti]+[Nb]+[Ta] is 6.2 to 7.6, wherein brackets mean atomic % of each element in the alloy.
    • 公开了低成本,经济且耗资较少的用作发动机气门材料的耐热合金,同时合金在高温下具有优异的机械性能,并且在常规耐热合金没有加热之后长时间加热后具有优异的韧性 。 该合金基本上以质量%计含有0.01至0.15%的C,0.01至0.8%的Si,0.01至0.8的Mn,14至17%的Cr,大于3.0%但等于或小于5.0的Mo %,Al:1.6〜2.5%,Ti:1.5〜3.0%,Nb:Nb + Ta:0.5〜2.0%,Ni:50〜60%,B:0.001〜0.015%,Mg:0.001〜 %和Ca为0.001〜0.015%,余量为Fe,其中由0.293 [Ni] -0.513 [Cr] -1.814 [Mo]定义的值A为2.0〜5.8,由[Al] /([Al ] [Ti] + [Nb] + [Ta])为0.45〜0.65,由[Al] + [Ti] + [Nb] + [Ta]定义的值C为6.2〜7.6, 合金中的每个元素。