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    • 10. 发明授权
    • Lightweight yoke for railway coupling
    • 铁路联轴器轻型叉
    • US09580089B2
    • 2017-02-28
    • US14329593
    • 2014-07-11
    • Pennsy Corporation
    • Perry LevittZachary Ryan BrookManuel TavaresWayne H. MurphyAaron SternMichael J. Schmidt
    • B61G9/20
    • B61G9/20
    • Lightweight yokes are provided. According to some embodiments, the basic overall appearance of the yoke may be maintained, but the actual material of which it is constructed is changed. According to other embodiments, the yoke is provided with an improved lightweight construction, and, yet other embodiments the yoke may be provided with an improved construction and formed from a preferred material. Yokes may be constructed from cast austempered ductile iron; whereas cast iron has a density, 0.26 lbs/in^3, which is approximately 8% less than steel, 0.283 lbs/in^3, thereby allowing for a reduction in weight over steel. A suitable austempering process is used to produce the austempered metal yoke. Yokes have improved configurations which may require less metal to produce the yoke. Both, the lightweight material and improvements in configuration of the yoke structure may combine to provide a lighter weight yoke.
    • 提供轻量级的轭。 根据一些实施例,可以保持轭的基本整体外观,但是其构造的实际材料改变。 根据其他实施例,轭具有改进的轻质结构,并且在其它实施例中,轭可以具有改进的结构并由优选的材料形成。 轭可以由铸造奥氏体球墨铸铁构成; 而铸铁的密度为0.26lbs / in ^ 3,比钢小约8%,0.283lbs / in ^ 3,从而允许重量比钢减少。 使用合适的奥氏体回火工艺生产奥氏体金属轭。 轭具有改进的构造,这可能需要较少的金属来制造轭。 两者,轻型材料和轭结构的结构的改进可以组合起来以提供更轻的重量轭。