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    • 3. 发明授权
    • Cast rotor and method
    • 铸转子和方法
    • US08925182B2
    • 2015-01-06
    • US13275535
    • 2011-10-18
    • Qigui WangKevin P. Coleman
    • Qigui WangKevin P. Coleman
    • H02K15/14H02K15/00
    • H02K15/0012Y10T29/49012
    • A method for forming a rotor assembly including a cast rotor frame includes positioning a preheated rotor core defining a plurality of passages in a mold cavity such that the mold cavity and the rotor core define the rotor frame including a plurality of conductor bars defined by the plurality of passages in fluid communication with first and second end portions of the mold cavity. Molten metal is quiescently introduced into the mold cavity through an ingate and simultaneously flowed through the plurality of passages prior to filling at least one of the first and second end portions of the mold cavity to form the cast rotor frame. Entrained air and impurities may be displaced from the passages by the flow of molten metal and vented or entrapped by a biscuit. The rotor frame and conductor bars thus formed may be characterized by high conductivity, negligible porosity, and minimal oxides.
    • 一种用于形成包括铸造转子架的转子组件的方法包括将预定的转子芯定位在模腔中,所述预定转子芯在多个模腔中定义多个通道,使得模腔和转子芯限定转子框架,该转子框架包括多个由多个 的通道与模腔的第一和第二端部流体连通。 熔融金属通过底部静止地引入模腔中,同时在填充模腔的第一和第二端部中的至少一个之前流过多个通道以形成铸造转子框架。 夹带的空气和杂质可以通过熔融金属的流动从通道移位,并被饼干排出或夹带。 这样形成的转子框架和导体棒的特征在于高导电性,可忽略的孔隙率和最小的氧化物。
    • 5. 发明授权
    • Systems and methods for predicting heat transfer coefficients during quenching
    • 淬火期间传热系数的预测系统和方法
    • US08437991B2
    • 2013-05-07
    • US12589351
    • 2009-10-22
    • Qigui WangBowang XiaoGang WangYiming RongRichard D. Sisson
    • Qigui WangBowang XiaoGang WangYiming RongRichard D. Sisson
    • G06G7/56G06G7/48G06F17/10
    • G06F17/5018B22D30/00C21D1/613C21D1/62C21D11/005C22C21/00C22F1/04C22F1/06G06F2217/08G06F2217/16G06F2217/80
    • A method to predict heat transfer coefficients for metal castings during quenching and/or cooling is provided. First, an initial set of HTC data are obtained from the computational fluid dynamics (CFD) simulation based on the metal casting geometry, initial metal casting temperature (distribution), quench bed/tunnel dimensions and set-up, and a given or baseline (standard) quenching condition including, but not limited to, air and/or gas flow velocity, air and/or gas flow direction relative to the work piece, air and/or gas temperature, air and/or gas humidity, etc. The initial HTC values for the entire surface of the work piece calculated from CFD can then be optimized by multiplying scale factors to minimize the error between the predicted temperature-time profiles and the experimental measurements for the given or standard/baseline quench condition. When the HTC values are optimized for a standard/baseline quench condition, a set of semi-empirical equations (or weight functions) can be used to quickly modify the standard/baseline HTC data for different quenching conditions (i.e., variations of quenching conditions from the baseline) without performing complete heat transferring and optimization calculations. A system and article of manufacture are also provided.
    • 提供了一种在淬火和/或冷却期间预测金属铸件的传热系数的方法。 首先,从基于金属铸造几何,初始金属铸造温度(分布),淬火床/隧道尺寸和设置的计算流体动力学(CFD)模拟获得初始的HTC数据集,以及给定或基线( 标准)淬火条件,包括但不限于空气和/或气体流速,相对于工件的空气和/或气体流动方向,空气和/或气体温度,空气和/或气体湿度等。初始 然后可以通过乘以比例因子来优化从CFD计算的工件的整个表面的HTC值,以使预测温度 - 时间曲线与给定或标准/基线淬火条件的实验测量之间的误差最小化。 当对于标准/基线淬火条件优化HTC值时,可以使用一组半经验方程(或权重函数)来快速修改不同淬火条件下的标准/基线HTC数据(即淬灭条件的变化 基线),而不进行完全的热传递和优化计算。 还提供了系统和制品。
    • 7. 发明申请
    • ROTOR ASSEMBLY AND METHOD OF MANUFACTURING A ROTOR ASSEMBLY
    • 转子总成及制造转子总成的方法
    • US20120126656A1
    • 2012-05-24
    • US12954080
    • 2010-11-24
    • Dale A. GerardQigui Wang
    • Dale A. GerardQigui Wang
    • H02K17/16H01R43/00
    • H02K15/0012H02K17/205Y10T29/49012
    • A rotor assembly for an electric device includes a laminated stack of electric steel sheets defining a plurality of longitudinally extending grooves. A conductor bar is disposed within each of the grooves. Each of the conductor bars includes a first end and a second end extending longitudinal outward from opposing axial end surfaces of the laminated stack. The first end and the second end of the conductor bars include a macro-sized locking feature. A first end ring is cast in place over the first ends of the conductor bars, and a second end ring is cast in place over the second ends of the conductor bars. The macro-sized locking feature in the first ends and the second ends of the conductor bars mechanically interlocks with the cast in place first end ring and second end ring respectively.
    • 一种用于电气设备的转子组件包括限定多个纵向延伸凹槽的电工钢板层压堆叠。 导体条布置在每个凹槽内。 每个导体棒包括第一端和从层叠叠层的相对的轴向端面纵向向外延伸的第二端。 导体棒的第一端和第二端包括宏尺寸的锁定特征。 第一端环在导体棒的第一端上铸造就位,并且第二端环在导体棒的第二端上铸造就位。 导体棒的第一端和第二端中的大尺寸锁定特征分别与第一端环和第二端环的铸件机械地互锁。
    • 8. 发明授权
    • Methods and systems for predicting very high cycle fatigue properties in metal alloys
    • 用于预测金属合金中非常高的循环疲劳性能的方法和系统
    • US08155940B2
    • 2012-04-10
    • US12182314
    • 2008-07-30
    • Qigui WangBob R. Powell, Jr.Peggy E. JonesCherng-Chi Chang
    • Qigui WangBob R. Powell, Jr.Peggy E. JonesCherng-Chi Chang
    • G06G7/48
    • G06F17/5009G06F2217/10G06F2217/16G06F2217/76
    • A system and method for predicting fatigue life in metal alloys for very high cycle fatigue applications. The system and method are especially useful for cast metal alloys, such as cast aluminum alloys, where a fatigue endurance limit is either non-existent or hard to discern. Fatigue properties, such as fatigue strength in the very high cycle fatigue region, are based on a modified random fatigue limit model, where the very high cycle fatigue strength and infinite life fatigue strength are refined to take into consideration the sizes of the discontinuities and microstructure constituents since the fatigue life scatter depends upon the presence of discontinuities and microstructure constituents. The sizes of the discontinuities and microstructure constituents that can initiate fatigue cracks can be determined with extreme value statistics, then input to the modified random fatigue limit model.
    • 用于预测非常高循环疲劳应用中金属合金疲劳寿命的系统和方法。 该系统和方法对于铸造金属合金(例如铸铝合金)尤其有用,其中疲劳耐力极限不存在或难以辨别。 疲劳性能,如非常高的循环疲劳区域的疲劳强度,基于改进的随机疲劳极限模型,其中非常高的循环疲劳强度和无限寿命疲劳强度得到细化,以考虑到不连续性和微观结构的尺寸 因为疲劳寿命分散取决于不连续性和微结构组分的存在。 可以用极值统计量确定可以引发疲劳裂纹的不连续性和微观组分的尺寸,然后输入到修改的随机疲劳极限模型。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR FABRICATING A ROTOR FOR AN INDUCTION MOTOR
    • 用于制造用于感应电动机的转子的方法和装置
    • US20110291517A1
    • 2011-12-01
    • US12791009
    • 2010-06-01
    • Richard M. KleberMichael J. WalkerQigui Wang
    • Richard M. KleberMichael J. WalkerQigui Wang
    • H02K17/16B22D19/00
    • B22D19/0054H02K15/02H02K17/165
    • A method for forming a rotor for an induction motor includes providing a rotor core including a plurality of conductor bar grooves having first and second ends corresponding to first and second ends of the rotor core wherein the conductor bar grooves are progressively larger closer to the ends of the conductor bar grooves. The rotor core is placed into a casting mold, and molten metal is introduced into a first end of the casting mold. The molten metal flows from the first end of the casting mold through the plurality of conductor bar grooves to a second end of the casting mold. The molten metal solidifies to form conductor bars in the plurality of conductor bar grooves and to form shorting rings across exterior portions of the end elements within the first and second ends of the casting mold.
    • 一种用于形成用于感应电动机的转子的方法包括提供转子芯,该转子芯包括多个导体条槽,该多个导体条槽具有对应于转子芯的第一和第二端的第一和第二端,其中导体条槽逐渐地越靠近转子芯的端部 导体条槽。 将转子芯放置在铸模中,并将熔融金属引入铸模的第一端。 熔融金属从铸模的第一端通过多个导体条槽流到铸模的第二端。 熔融金属固化以在多个导体条槽中形成导体棒,并且在铸模的第一和第二端内的端部元件的外部部分形成短路环。