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    • 3. 发明授权
    • Apparatus for and method of monitoring condensed water in steam pipes at high temperature
    • 高温蒸汽管道冷凝水监测装置及方法
    • US09404891B2
    • 2016-08-02
    • US14109470
    • 2013-12-17
    • Shyh-Shiuh LihHyeong Jae LeeYoseph Bar-CohenXiaoqi Bao
    • Shyh-Shiuh LihHyeong Jae LeeYoseph Bar-CohenXiaoqi Bao
    • G01N29/024G01F23/296G01N29/44G01N29/50
    • G01N29/024G01F23/2962G01N29/4472G01N29/50G01N2291/02836G01N2291/044G01N2291/101
    • A system and method for monitoring the properties of a fluid, such as water, in a steam pipe without mechanically penetrating the wall of the pipe. The system uses a piezoelectric transducer to launch an ultrasonic probe signal into the pipe. Reflected ultrasonic signals are captured in a transducer, which can be the same transducer that launched the probe signal. The reflected signals are subjected to data processing, which can include filtering, amplification, analog-to-digital conversion and autocorrelation analysis. A result is extracted which is indicative of a property of the fluid, such as a height of the condensed fluid, a cavitation of the condensed fluid, and a surface perturbation of the condensed fluid. The result can be recorded, displayed, and/or transmitted to another location. One embodiment of the system has been constructed and tested based on a general purpose programmable computer using instructions recorded in machine-readable non-volatile memory.
    • 一种用于在蒸汽管中监测流体(例如水)的性质而不机械地穿透管壁的系统和方法。 该系统使用压电换能器将超声波探头信号发射到管道中。 反射的超声信号被捕获在传感器中,该传感器可以是发射探测信号的相同传感器。 反射信号经受数据处理,其可以包括滤波,放大,模数转换和自相关分析。 提取表示流体的性质的结果,例如冷凝流体的高度,冷凝流体的空化以及冷凝流体的表面扰动。 结果可以被记录,显示和/或传输到另一个位置。 已经基于使用记录在机器可读非易失性存储器中的指令的通用可编程计算机构造和测试了该系统的一个实施例。
    • 5. 发明申请
    • MULTI-PATH MULTI-STAGE EROSION-RESISTANT VALVE FOR DOWNHOLE FLOW CONTROL
    • 多通道多级防腐蚀阀门,用于井下流量控制
    • US20140224342A1
    • 2014-08-14
    • US14174575
    • 2014-02-06
    • Xiaoqi BaoMircea BadescuStewart SherritJeffery L. HallYoseph Bar-Cohen
    • Xiaoqi BaoMircea BadescuStewart SherritJeffery L. HallYoseph Bar-Cohen
    • E21B34/06
    • E21B34/10Y10T137/0368Y10T137/7738
    • A flow control valve for use in oil well bore holes is described. The flow control valve includes a plurality of flow paths connected in parallel. The flow control valve operates by successively opening different flow paths, starting with a flow path that requires a reduced force to operate its inlet valve. The flow rate through the flow control valve is conveniently controlled by opening and closing different ones of the plurality of flow paths individually or in combination. A flow path that allows fluid to flow at substantially the full flow rate of the valve is provided as one of the parallel paths. A simple mechanical design using poppet valves and at least one cam is described. The flow control valve provides advantages including digital control of the flow rate, low operating power requirements and abrasion resistance in the presence of particulates in the fluid.
    • 描述了一种用于油井钻孔的流量控制阀。 流量控制阀包括并联连接的多个流路。 流量控制阀通过依次打开不同的流动路径操作,从需要减小力来操作其入口阀的流动路径开始。 通过单独地或组合地打开和关闭多个流动路径中的不同流动方向来方便地控制通过流量控制阀的流量。 允许流体基本上以阀的全流量流动的流动路径被提供为平行路径之一。 描述了使用提升阀和至少一个凸轮的简单机械设计。 流量控制阀提供了在流体中存在微粒的情况下数字控制流量,低操作功率要求和耐磨性的优点。
    • 7. 发明授权
    • Ultrasonic rotary-hammer drill
    • 超声波旋转锤钻
    • US07740088B1
    • 2010-06-22
    • US11928069
    • 2007-10-30
    • Yoseph Bar-CohenMircea BadescuStewart SherritXiaoqi BaoSteve Kassab
    • Yoseph Bar-CohenMircea BadescuStewart SherritXiaoqi BaoSteve Kassab
    • E21B10/36
    • E21B6/08E21B7/24
    • A mechanism for drilling or coring by a combination of sonic hammering and rotation. The drill includes a hammering section with a set of preload weights mounted atop a hammering actuator and an axial passage through the hammering section. In addition, a rotary section includes a motor coupled to a drive shaft that traverses the axial passage through the hammering section. A drill bit is coupled to the drive shaft for drilling by a combination of sonic hammering and rotation. The drill bit includes a fluted shaft leading to a distal crown cutter with teeth. The bit penetrates sampled media by repeated hammering action. In addition, the bit is rotated. As it rotates the fluted bit carries powdered cuttings helically upward along the side of the bit to the surface.
    • 通过声音锤击和旋转的组合进行钻孔或取芯的机构。 该钻具包括锤击部分,其具有安装在锤击致动器顶部的一组预载重物和穿过锤击部分的轴向通道。 此外,旋转部分包括联接到驱动轴的马达,该马达横穿通过锤击部分的轴向通道。 钻头通过声音锤击和旋转的组合联接到驱动轴用于钻孔。 钻头包括通向具有齿的远端冠切割器的带槽轴。 该钻头通过重复的锤击动作穿透采样介质。 此外,该位被旋转。 当它旋转时,带槽的钻头沿着钻头的侧面向上螺旋形地加载表面的粉末切屑。
    • 9. 发明申请
    • MONOLITHIC FLEXURE PRE-STRESSED ULTRASONIC HORNS
    • 单声弯曲预应力超声波
    • US20150298171A1
    • 2015-10-22
    • US14590971
    • 2015-01-06
    • Stewart SherritXiaoqi BaoMircea BadescuYoseph Bar-CohenPhillip Grant Allen
    • Stewart SherritXiaoqi BaoMircea BadescuYoseph Bar-CohenPhillip Grant Allen
    • B06B1/06
    • B06B1/06B06B3/00B23K20/10Y10T29/49826
    • A monolithic ultrasonic horn where the horn, backing, and pre-stress structures are combined in a single monolithic piece is disclosed. Pre-stress is applied by external flexure structures. The provision of the external flexures has numerous advantages including the elimination of the need for a pre-stress bolt. The removal of the pre-stress bolt eliminates potential internal electric discharge points in the actuator. In addition, it reduces the chances of mechanical failure in the actuator stacks that result from the free surface in the hole of conventional ring stacks. In addition, the removal of the stress bolt and the corresponding reduction in the overall number of parts reduces the overall complexity of the resulting ultrasonic horn actuator and simplifies the ease of the design, fabrication and integration of the actuator of the present invention into other structures.
    • 公开了一种整体式超声波喇叭,其中喇叭,背衬和预应力结构组合在一个整体上。 外部弯曲结构施加预应力。 提供外部挠曲具有许多优点,包括消除对预应力螺栓的需要。 去除预应力螺栓消除了执行机构中的潜在的内部放电点。 此外,它减少了由常规环形堆叠的孔中的自由表面引起的致动器堆叠中的机械故障的机会。 此外,去除应力螺栓和相应的零件数量的减少降低了所得超声波喇叭致动器的总体复杂性,并且简化了本发明的致动器的设计,制造和集成的容易性到其他结构 。
    • 10. 发明授权
    • Monolithic flexure pre-stressed ultrasonic horns
    • 单片弯曲预应力超声波喇叭
    • US08958270B2
    • 2015-02-17
    • US13178114
    • 2011-07-07
    • Stewart SherritXiaoqi BaoMircea BadescuYoseph Bar-CohenPhillip Grant Allen
    • Stewart SherritXiaoqi BaoMircea BadescuYoseph Bar-CohenPhillip Grant Allen
    • B06B3/00B23K20/10
    • B06B1/06B06B3/00B23K20/10Y10T29/49826
    • A monolithic ultrasonic horn where the horn, backing, and pre-stress structures are combined in a single monolithic piece is disclosed. Pre-stress is applied by external flexure structures. The provision of the external flexures has numerous advantages including the elimination of the need for a pre-stress bolt. The removal of the pre-stress bolt eliminates potential internal electric discharge points in the actuator. In addition, it reduces the chances of mechanical failure in the actuator stacks that result from the free surface in the hole of conventional ring stacks. In addition, the removal of the stress bolt and the corresponding reduction in the overall number of parts reduces the overall complexity of the resulting ultrasonic horn actuator and simplifies the ease of the design, fabrication and integration of the actuator of the present invention into other structures.
    • 公开了一种整体式超声波喇叭,其中喇叭,背衬和预应力结构组合在一个整体上。 外部弯曲结构施加预应力。 提供外部挠曲具有许多优点,包括消除对预应力螺栓的需要。 去除预应力螺栓消除了执行机构中的潜在的内部放电点。 此外,它减少了由常规环形堆叠的孔中的自由表面引起的致动器堆叠中的机械故障的机会。 此外,去除应力螺栓和相应的零件数量的减少降低了所得超声波喇叭致动器的总体复杂性,并且简化了本发明的致动器的设计,制造和集成的容易性到其他结构 。