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    Closed loop sludge flow control system
    172.
    发明授权
    Closed loop sludge flow control system 失效
    闭环污泥流量控制系统

    公开(公告)号：US5401140A

    公开(公告)日：1995-03-28

    申请号：US198470

    申请日：1994-02-18

    Applicant: Thomas M. Anderson

    Inventor： Thomas M. Anderson

    IPC: F04B15/02 ,  F04B49/06 ,  G01F11/02 ,  F04B35/02

    CPC classification number: G01F11/029 ,  F04B15/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0209 ,  F04B2201/06012 ,  F04B2201/1204 ,  F04B2203/0902 ,  F04B2205/05 ,  Y10S417/90

    Abstract: A system and method for controlling operation of a sludge material handling system is disclosed. The sludge material handling system includes a positive displacement piston/cylinder pump, a sludge material feed system which delivers sludge material to the pump, and a sludge material disposal system which receives and disposes of sludge material from the pump. A first parameter is sensed, the first parameter bearing a known relationship to an actual volume of sludge material delivered during a pumping cycle. An output value is determined from the first parameter. A control signal is provided as a function of the output value.

    Abstract translation: 公开了一种用于控制污泥物料处理系统的操作的系统和方法。 污泥处理系统包括容积式活塞/气缸泵，将污泥材料输送到泵的污泥原料供给系统以及从泵接收和处理污泥物料的污泥物料处理系统。 感测到第一参数，第一参数与在泵送循环期间输送的污泥物料的实际体积具有已知关系。 根据第一个参数确定输出值。 作为输出值的函数提供控制信号。

    Blood pump actuator
    173.
    发明授权
    Blood pump actuator 失效
    血泵执行器

    公开(公告)号：US5360445A

    公开(公告)日：1994-11-01

    申请号：US788574

    申请日：1991-11-06

    Applicant: Michael Goldowsky

    Inventor： Michael Goldowsky

    IPC: A61M1/10 ,  B23Q3/155 ,  F04B17/04 ,  F04B53/08 ,  A61N1/362

    CPC classification number: A61M1/106 ,  B23Q3/15526 ,  F04B17/042 ,  F04B53/08 ,  F04B2201/0201 ,  F04B2201/0202

    Abstract: An implantable blood pump actuator uses an efficient direct drive voice coil linear motor to power an hydraulic piston. The motor is immersed in oil and has but one moving part, a magnet which is attached to the piston. The piston is supported using a linear double acting hydrodynamic oil bearing that eliminates all wear and will potentially give an infinitely long life. There are no flexing leads, springs to break or parts to fatigue. A total artificial heart embodiment is very light, small, and as efficient as present prosthesis. The motor uses two commutated coils for high efficiency and has inherently low side forces due to the use of coils on both the inside and outside diameters of the magnet. The motor is cooled by forced convection of oil from the piston motion and by direct immersion of the coils in the oil. The highly effective cooling results in a smaller lighter weight motor.

    Abstract translation: 可植入血液泵执行器使用高效的直接驱动音圈线性电动机为液压活塞供电。 电机浸入油中，只有一个活动部件，一个附着在活塞上的磁铁。 活塞采用线性双作用流体动力轴承，可消除所有的磨损，并可能产生无限长的使用寿命。 没有弯曲的引线，弹簧破裂或零件疲劳。 总人造心脏实施例非常轻，小，并且与现有假体一样有效。 由于在磁体的内径和外径上使用线圈，所以电动机使用两个换向线圈以获得高效率并具有固有的低侧向力。 电机通过活塞运动中的油的强制对流以及线圈直接浸入油中来冷却。 高效的冷却导致更小的重量较轻的电机。

    Piston valved vertical pump for particulate materials
    174.
    发明授权
    Piston valved vertical pump for particulate materials 失效
    活塞式立式泵用于颗粒材料

    公开(公告)号：US5252037A

    公开(公告)日：1993-10-12

    申请号：US922674

    申请日：1992-07-30

    Applicant: V. R. Carlson

    Inventor： V. R. Carlson

    IPC: B65B3/32 ,  F04B7/02 ,  F04B9/117 ,  F04B11/00 ,  F04B7/04 ,  B67D5/40 ,  F04B17/00

    CPC classification number: B65B3/32 ,  F04B11/0058 ,  F04B7/0266 ,  F04B9/1174 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0203

    Abstract: A piston pump for conveying fragile particulate food products without damaging the product. The pump includes a filler and a discharge conduit containing piston valves actuated by hydraulic cylinders. The pumping chamber in which the product is compressed is equipped with a linear displacement transducer/magnet sensor which senses not only the position, but the speed of the piston. In response to the sensor, a proportioning valve releases hydraulic fluid at increasing pressure to a desired maximum, to the hydraulic cylinder actuating the piston in the pumping chamber of a second pump operating in tandem with the first pump. The product is expelled alternatively from the two pumps at the maximum desired pressure appropriate for the character of the product. The pump also includes means for flushing the pump without dismantling.

    Abstract translation: 一种活塞泵，用于输送脆弱的颗粒食品而不会损坏产品。 该泵包括一个填充物和一个包含由液压缸致动的活塞阀的排放管道。 产品被压缩的泵送室配备有线性位移传感器/磁体传感器，其不仅检测活塞的位置，而且检测活塞的速度。 响应于传感器，配比阀将液压流体以增加的压力释放到期望的最大值，液压缸致动与第一泵串联操作的第二泵的泵送室中的活塞。 产品以适合于产品特性的最大期望压力从两个泵交替排出。 该泵还包括用于在不拆卸的情况下冲洗泵的装置。

    Fluid flow generating apparatus
    175.
    发明授权
    Fluid flow generating apparatus 失效
    流体生成装置

    公开(公告)号：US5226311A

    公开(公告)日：1993-07-13

    申请号：US686165

    申请日：1991-04-16

    Applicant: George Scourtes

    Inventor： George Scourtes

    IPC: F02M65/00 ,  F04B53/00 ,  F04B53/14 ,  G05D7/06

    CPC classification number: G05D7/06 ,  F02M65/00 ,  F04B53/008 ,  F04B53/14 ,  G05D7/0676 ,  F04B2201/0202 ,  F04B2205/05

    Abstract: Apparatus for generating a precision fluid flow comprises a cylinder having side and end walls forming a fluid-receiving chamber having a fluid inlet and a fluid outlet. A cylindrical piston free of engagement with the cylinder side wall is movable longitudinally into the cylinder so as to displace through the fluid outlet a volume of fluid corresponding to the volume of the piston accommodated in the chamber. The piston is formed of a material which is substantially insensitive to variations in temperature and pressure of the fluid in the chamber so that the piston rod is substantially dimensionally stable. The piston is moved relative to the chamber by a precision driving mechanism either at a constant velocity to provide a constant volumetric flow of fluid through the outlet or at a variable velocity to provide a constant fluid pressure at the outlet.

    Surface hydraulic pump/well performance analysis method
    176.
    发明授权
    Surface hydraulic pump/well performance analysis method 失效
    表面液压泵/井性能分析方法

    公开(公告)号：US5184507A

    公开(公告)日：1993-02-09

    申请号：US633243

    申请日：1990-12-21

    Applicant: Charles L. Drake

    Inventor： Charles L. Drake

    IPC: E21B47/00 ,  F04B47/02 ,  F04B49/06

    CPC classification number: F04B47/02 ,  E21B47/0007 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2205/05

    Abstract: Surface hydraulic fluid pressure and sucker rod displacement are measured and used to analyze the performance of a pumped oil well having a surface hydraulic actuator connected to a downhole pump by the sucker rod. The pressurized hydraulic fluid actuates a cyclic motion of the rod and a pumping of the oil. The measured rod motion and hydraulic fluid pressure are used together with an added flexible rod simulator to calculate a performance characteristic. The analysis method accounts for rod interactions with the hydraulic actuator and hydraulic pump. The present invention avoids installation of a load cell and disassembly/shutting down the operating pumping unit as is required by the conventional rocker beam analysis methods. The present invention also avoids flow measurements, as is required by conventional subsurface hydraulic motor and analysis methods, and complex dynamic frictional fluid loss analysis.

    Abstract translation: 表面液压流体压力和抽油杆位移被测量并用于分析具有通过抽油杆连接到井下泵的表面液压致动器的泵油井的性能。 加压液压流体致动杆的循环运动并泵送油。 测量的杆运动和液压流体压力与附加的柔性杆模拟器一起使用以计算性能特征。 分析方法说明了与液压执行器和液压泵的杆相互作用。 本发明避免了传统摇臂分析方法所要求的安装测力传感器和拆卸/关闭操作抽油机。 本发明还避免了流量测量，如传统的地下液压马达和分析方法所需要的，以及复杂的动态摩擦流体损失分析。

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