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    • 5. 发明申请
    • Variable displacement reciprocating pump
    • 可变排量往复泵
    • US20070041849A1
    • 2007-02-22
    • US11206731
    • 2005-08-18
    • Thomas Allen
    • Thomas Allen
    • F04B1/04
    • F04B49/126F04B9/02Y10T74/2101Y10T74/2107Y10T74/2142Y10T74/2162
    • A variable displacement reciprocating pump with pumping rate that is adjustable from zero to maximum stroke while the pump is running. Stroke is varied by changing relative position of pairs of eccentric inner and outer cams that drive the pump's plungers. The pump's input drive shaft drives two gear trains: a first gear train that turns the inner cams and a second gear train that turns the outer cams. These cams normally revolve together with no relative motion occurring between them. A rotary actuator is positioned in the first gear train to rotate the inner cams relative to the outer cams and thereby changes the pump's stroke. A computerized system of sensors and control valves allows the pump to be automatically controlled or limited to any one or combination of desired output flow, pressure and horsepower.
    • 一种可变排量往复泵,其泵送速度在泵运行时可从零到最大行程调节。 通过改变驱动泵的柱塞的偏心内凸轮和外凸轮对的相对位置来改变行程。 泵的输入驱动轴驱动两个齿轮系:转动内凸轮的第一齿轮系和转动外凸轮的第二齿轮系。 这些凸轮通常在它们之间不发生相对运动而旋转在一起。 旋转致动器定位在第一齿轮系中以相对于外凸轮旋转内凸轮,从而改变泵的行程。 传感器和控制阀的计算机化系统允许泵自动控制或限制为任何一种或组合的所需输出流量,压力和马力。
    • 8. 发明申请
    • Training device for forcibly opening a locked door
    • 训练装置强制开门锁
    • US20080014564A1
    • 2008-01-17
    • US11818008
    • 2007-06-13
    • Thomas Allen
    • Thomas Allen
    • G09B19/00
    • G09B19/00A62C99/0081Y10T70/333Y10T70/358Y10T70/367Y10T70/375
    • A training device is described for perfecting the art of forcibly opening a door in an emergency. The training device has a frame and a door placed in the frame. A dead bolt is mounted in the door and protrudes from the door in a locked position relative to the frame. A vise is attached to the frame. The vise has a movable jaw mounted on a block and a stationary jaw, and means for tightening the movable jaw against the dead bolt. The dead bolt protrudes from the door between the stationary and movable jaw. A method of using the training device causes the door to pivot and the dead bolt to move off of the vise, thus simulating an actual forced opening.
    • 描述了一种训练装置,用于完善在紧急情况下强行打开门的艺术。 该训练装置具有框架和一个放置在框架中的门。 锁舌安装在门上,并且相对于框架在锁定位置处从门突出。 虎钳附在框架上。 虎钳具有安装在块体和固定夹爪上的活动夹爪,以及用于将可动夹爪紧固在死栓上的装置。 死螺栓从固定和可动夹爪之间的门突出。 使用训练装置的方法使得门枢转并且死栓从虎钳移开,从而模拟实际的强制打开。
    • 9. 发明申请
    • Gel mixing system
    • 凝胶混合系统
    • US20050185506A1
    • 2005-08-25
    • US11113727
    • 2005-04-25
    • Thomas Allen
    • Thomas Allen
    • B01F3/12B01F5/06B01F5/20B01F7/16B01F13/10B01F15/00B01F15/02
    • B01F3/1221B01F3/1271B01F5/061B01F5/0646B01F5/0647B01F5/205B01F7/1635B01F13/103
    • A gel mixing system that employs a dynamic diffuser for quickly removing the air from the fluid as the fluid exits a traditional gel mixer and employs progressive dilution of the gel in a series of hydration tanks to maximize hydration time without allowing the gel to become so viscous that it is not easily diluted or pumped. High shear agitation of the fluid between the hydration tanks helps to increase the hydration rate. Progressive dilution of the gel increases residence time of the gel in the tanks and results in longer hydration time in the limited tank space available, resulting in continuous production of gel that is almost fully hydrated when it is pumped to the fracturing blender and subsequently to the well bore without the need for an increase in the volume of the hydration tanks.
    • 凝胶混合系统采用动态漫射器,当流体离开传统的凝胶搅拌器时,快速从流体中除去空气,并且使用凝胶在一系列水化罐中逐渐稀释以最大化水合时间,而不会使凝胶变得粘稠 它不容易稀释或泵送。 水合槽之间的流体的高剪切搅拌有助于提高水合速率。 凝胶的渐进稀释增加了凝胶在罐中的停留时间,并且在有限的罐空间中导致更长的水合时间,导致凝胶的连续生产,当它被泵送到压裂混合器中时几乎完全水合, 井眼,而不需要增加水化罐的体积。