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公开(公告)号:US20110290897A1
公开(公告)日:2011-12-01
申请号:US13025898
申请日:2011-02-11
CPC分类号: E01B13/02 , C21D1/58 , C21D8/005 , C21D9/0068 , Y10T29/49947
摘要: Methods, systems, and apparatus, including an apparatus that is a rail anchor comprising a head, a tail, and a belly section. The belly section comprises a top surface, a bottom surface, and two side surfaces. Each side surface comprises a contact-bearing surface area. The head comprises a bend along a length of the head. The tail comprises a notch. Each contact-bearing surface area has a surface area of at least 3 square inches and is adapted to extend at least 1.5 inches downward from the top of a railroad track crosstie along a side of the railroad track crosstie.
摘要翻译: 方法,系统和装置,包括作为轨道锚的装置,其包括头部,尾部和腹部部分。 腹部包括顶表面,底表面和两个侧表面。 每个侧表面包括接触表面积。 头部包括沿头部长度的弯曲部。 尾巴包括一个凹口。 每个接触表面区域具有至少3平方英寸的表面积,并且适于沿铁路轨道横截面的一侧从铁路轨道横截面的顶部向下延伸至少1.5英寸。
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公开(公告)号:US06831849B2
公开(公告)日:2004-12-14
申请号:US09832677
申请日:2001-04-11
申请人: Craig Rae Fowler , Dennis A. Kramer , Jerome Quere , Enrico Fin , George Chene , Stephen Chiu , Pascal Garrido , Ira B. Goldberg , Charles Hopson , David M. Barry , Dan Rogovin
发明人: Craig Rae Fowler , Dennis A. Kramer , Jerome Quere , Enrico Fin , George Chene , Stephen Chiu , Pascal Garrido , Ira B. Goldberg , Charles Hopson , David M. Barry , Dan Rogovin
IPC分类号: H02M500
CPC分类号: H02M5/14
摘要: A system for controlling multiple vehicle includes a twelve volt (12V)/forty-two volt (42V) battery power distribution system that provides direct current. The system converts single phase alternating current to multiple phase alternating current to simultaneously power multiple vehicle systems. A single pulse width modulation generator converts the direct current from the 12V/42V battery power distribution system to alternating current. This provides one power supply path of alternating current, which has a first phase. A splitter device splits the one power supply path of alternating current into three power paths. A lead/lag circuit is used to shift the alternating current of the second path to a second phase different than the first phase of the first power supply path. A second lead/lag circuit for shifts the alternating current of the third path to a third phase different than the first phase or the second phase. This creates a three-phase alternating current power from a single direct current source. The three-phase alternating current is used to power a plurality of induction motors that operate multiple vehicle systems.
摘要翻译: 用于控制多车辆的系统包括提供直流电的十二伏(12V)/四十二伏(42V)电池配电系统。 该系统将单相交流电转换为多相交流电以同时为多个车辆系统供电。 单个脉冲宽度调制发生器将来自12V / 42V电池配电系统的直流电转换为交流电。 这提供了具有第一相的交流电的一个电源路径。 分路器将交流电的一个电源路径分成三个电源路径。 引导/延迟电路用于将第二路径的交流电转换到与第一电源路径的第一相位不同的第二相位。 用于将第三路径的交流电转换成与第一相或第二相不同的第三相的第二引导/延迟电路。 这产生了来自单个直流电源的三相交流电源。 三相交流电用于对多个操作多个车辆系统的感应电动机供电。
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