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31.
公开(公告)号:US20050224296A1
公开(公告)日:2005-10-13
申请号:US10769527
申请日:2004-01-30
Applicant: Rory Smith , Hien Nguyen
Inventor: Rory Smith , Hien Nguyen
Abstract: An improved system of variable speed drives that enhances the energy efficiency of an elevator system by enabling power transfer between the variable speed drives of two or more elevators via a common DC bus. Any combination of regenerative and non-regenerative variable speed drives may be used with the present invention. Energy storage devices may be connected to the common DC bus further improve efficiency.
Abstract translation: 一种改进的变速驱动系统,其通过在两个或多个电梯的变速驱动器之间通过公共DC总线进行功率传递来增强电梯系统的能量效率。 再生和非再生变速驱动器的任何组合可以与本发明一起使用。 储能装置可以连接到公共直流母线,进一步提高效率。
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公开(公告)号:US06923065B2
公开(公告)日:2005-08-02
申请号:US10661257
申请日:2003-09-12
Applicant: Rory Smith , Robert H. Sweet , James Nickerson , Michael A. Palazzola , Randall Parrish
Inventor: Rory Smith , Robert H. Sweet , James Nickerson , Michael A. Palazzola , Randall Parrish
CPC classification number: B66B7/1215 , G01N3/08 , G01N29/07 , G01N2203/005 , G01N2203/0062 , G01N2203/0244 , G01N2203/028 , G01N2203/0623 , G01N2291/02827 , G01N2291/2626
Abstract: An apparatus and method for inspecting and calculating the residual strength of an aramid fiber rope driving an elevator to determine when such rope is in need of replacement. The apparatus comprises a transmitter for introducing an acoustic wave that will travel along the aramid fiber rope and a plurality of receivers for receiving the acoustic wave after its has traversed a designated section of the rope. The transmitter and receiver provide signals indicating the times the wave was sent by the transmitter and thereafter received by the receiver. From these signals, a program calculates the wave velocity, and the modulus and residual strength of the aramid rope.
Abstract translation: 一种用于检查和计算驱动电梯的芳纶纤维绳的剩余强度以确定何时需要更换的装置和方法。 该装置包括用于引入沿着芳族聚酰胺纤维绳行进的声波的发射器和用于在其穿过绳索的指定部分之后接收声波的多个接收器。 发射机和接收机提供指示由发射机发送波并随后由接收机接收的时间的信号。 根据这些信号,程序计算芳族聚酰胺绳的波速,模量和残余强度。
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