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    Method and apparatus for pumping with a dredge
    91.
    发明申请
    Method and apparatus for pumping with a dredge 审中-公开

    公开(公告)号：US20050268499A1

    公开(公告)日：2005-12-08

    申请号：US10861588

    申请日：2004-06-04

    申请人： Harry Weinrib ,  Daniel Wahlgren

    发明人： Harry Weinrib ,  Daniel Wahlgren

    IPC分类号： E02F3/88 ,  E02F3/90 ,  E02F5/28 ,  E02F9/04 ,  E02F9/14 ,  E02F9/20 ,  E02F9/26 ,  F04D7/04 ,  F04D15/00 ,  G01F1/00

    CPC分类号： F04D15/0005 ,  E02F3/8841 ,  E02F3/907 ,  F04D7/045

    摘要： A system usable for dredging may include a suction bypass system for automatically maintaining a sufficiently high, liquid flow velocity. Preferably, a flow sensor monitors flow velocity and when the monitor flow decreases to an extent that plugging may occur, a liquid bypass valve is opened and an intake line valve is closed until the flow velocity increases whereupon the valves are returned to their original positions. An automatic level cut removes a relatively constant layer of material from a contoured bottom. The illustrated automatic level cut process comprises adjusting the force with which the suction head engages the bottom, moving the suction head in a direction opposite to the direction of the swing of the boom to keep the suction head pointing straight ahead, and maintaining the suction head to stay substantially level with the bottom even though the angle of the boom increases to the surface of the water body. A leveling device comprising a parallelogram linkage may be used to maintain the suction head substantially level with the bottom. A predetermined amount of load force may be applied by the head against the bottom. Herein, a winch and cable and the controller are operated to lift some of the head weight until the desired predetermined head force is applied to the bottom. A walking system moves the pipe intake for taking a sideways cut without the use of a spud pole, anchors and anchor lines. Large blade members or feet travels in an endless path with the feet entering the bottom while vertically disposed and remained disposed vertically while entering and leaving the bottom so as not to dig or stir the bottom that will cause large liquid turbidity. A low turbidity head cleaning system prevents the head from being plugged and debris or sticky material. Preferably, a rotatable cone-shaped head is provided with spaced rings and bars that define sized openings that limit the size of debris entering into the intake. A fixed comb removes material stuck on the rotating head. A shroud has an open bottom side thereby preventing bottom material from escaping and increasing with turbidity. A suction head articulation system keeps the head pointed in the forward direction of dredge advancement to create a smooth finish grade.

    Controller for pump and valve
    92.
    发明授权
    Controller for pump and valve 失效
    泵和阀门控制器

    公开(公告)号：US06474951B2

    公开(公告)日：2002-11-05

    申请号：US09782954

    申请日：2001-02-14

    申请人： Waldemar Stephan ,  Albert Genster

    发明人： Waldemar Stephan ,  Albert Genster

    IPC分类号： F04B4900

    CPC分类号： F04D15/0066 ,  F04D15/0005

    摘要： The invention relates to an apparatus including a pump 1 driven by an electronically controlled electric motor 3 with a pump controller 4 and a valve 2 operated by an electronically controlled drive 10 with a valve controller 11, the valve controller 11 being partially or fully integrated in the pump controller 4.

    摘要翻译： 本发明涉及一种装置，其包括由具有泵控制器4的电子控制电动机3驱动的泵1和由具有阀控制器11的电子控制驱动器10操作的阀2，阀控制器11部分地或完全地集成在 泵控制器4。

    Self-priming type cetrifugal pump
    93.
    发明授权
    Self-priming type cetrifugal pump 有权
    自吸式离心泵

    公开(公告)号：US6152689A

    公开(公告)日：2000-11-28

    申请号：US230251

    申请日：1999-01-22

    申请人： Hiroshi Yokota ,  Shingo Yokota

    发明人： Hiroshi Yokota ,  Shingo Yokota

    IPC分类号： F04D5/00 ,  F04D7/04 ,  F04D9/04 ,  F04D15/00 ,  F04D17/08

    CPC分类号： F04D7/045 ,  F04D15/0005 ,  F04D9/04 ,  F04D9/041 ,  F05B2210/132

    摘要： The invention provides a self-priming centrifugal pump capable of sucking up and pumping a highly viscous liquid containing muddy substances including a large amount of bubbles, and solid foreign matters, of preventing the flow of the liquid from the side of a main pump unit into a vacuum device and from the vacuum device into the main pump unit at all stages of operation including starting, operating and stopping stages and of perfectly automatic operation, and very economical in costs of equipment and maintenance.The self-priming centrifugal pump has a main pump unit for pumping a liquid, an auxiliary pump unit for centrifugal gas-liquid separation, and an exhaust vacuum device. A region in the vicinity of a central part of an impeller included in the main pump unit is connected via a passage having a small passage area as compared with the discharge ability of the auxiliary pump unit to the suction opening of the auxiliary pump unit, the discharge opening of the auxiliary pump unit is connected to the suction opening of the main pump unit by a return passage, and a region in the vicinity of a central part of the impeller of the auxiliary pump unit is connected via an exhaust passage to the vacuum device. The exhaust passage includes in series therein a slow-acting valve which opens with a delay after the connection of a prime mover for driving the self-priming centrifugal pump to a power source, and a quick-acting valve which closes immediately after the disconnection of the prime mover from the power source.

    摘要翻译： PCT No.PCT / JP97 / 00857 Sec。 371日期1999年1月22日 102（e）日期1999年1月22日PCT 1997年3月17日PCT公布。 出版物WO98 / 04833 日期1998年2月5日本发明提供一种自吸式离心泵，其能够吸收和泵送含有大量气泡的混浊物质和固体异物的高粘性液体，以防止液体从侧面流出 主泵单元进入真空装置，并从真空装置进入主泵装置，包括启动，运行和停止阶段以及完全自动运行的各个阶段，并且设备和维护成本非常经济。 自吸离心泵具有用于泵送液体的主泵单元，用于离心气液分离的辅助泵单元和排气真空装置。 包括在主泵单元中的叶轮的中心部分附近的区域通过与辅助泵单元对辅助泵单元的吸入口的排出能力相比具有小通道面积的通道连接， 辅助泵单元的排出口通过返回通路与主泵单元的吸入口连接，辅助泵单元的叶轮的中央部附近的区域经由排气通路与真空连接 设备。 排气通道串联地包括缓慢作用的阀，其在用于将自吸离心泵驱动到动力源的原动机连接之后延迟地打开;以及快速阀，其在断开后立即关闭 来自电源的原动机。

    Steam cooled nuclear reactor with bi-level core
    95.
    发明授权
    Steam cooled nuclear reactor with bi-level core 失效
    蒸汽冷却核反应堆与双层核心

    公开(公告)号：US5162097A

    公开(公告)日：1992-11-10

    申请号：US681246

    申请日：1991-04-04

    申请人： Larry E. Fennern

    发明人： Larry E. Fennern

    IPC分类号： G21C3/328 ,  F04D7/08 ,  F04D13/04 ,  F04D15/00 ,  F04D29/04 ,  F04D29/047 ,  F04D29/42 ,  F04D29/44 ,  G21C1/08 ,  G21C1/28 ,  G21C3/32 ,  G21C5/00 ,  G21C5/02 ,  G21C5/18 ,  G21C5/22 ,  G21C7/10 ,  G21C15/24 ,  G21C15/243 ,  G21C19/20

    CPC分类号： F04D29/047 ,  F04D13/043 ,  F04D15/0005 ,  F04D29/426 ,  F04D29/448 ,  F04D7/08 ,  G21C1/084 ,  G21C15/24 ,  G21C15/243 ,  G21C19/205 ,  G21C3/32 ,  G21C1/28 ,  G21C5/02 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y10S376/917

    摘要： In accordance with the present invention, a nuclear reactor with a recirculating heat transfer fluid has a bi-level core which provides enhanced flexibility in fuel arrangement. The bi-level core includes two sets of fuel units, one set arranged on a first level, the other set arranged on a second level. Preferably, fuel units of the second level are arranged in vertical alignment with fuel units of the first level. This permits a fuel unit of the first level to be accessed by removing only the adjacent fuel unit of the second level. During refueling operations, fuel units can be shifted from one level to the other, providing additional flexibility in arranging units at various stages of burnup. Preferably, fuel units of the first level are inverted relative to the fuel units of the second level. The inversion provides for placing plenum sections of fuel rods in different levels away from each other so that the plenums do not introduce a discontinuity in neutron generation, and allows for more uniform axial fuel burnup. The bi-level core allows fuel to be initially positioned in the second level for conversion of fertile fuel to fissile fuel, and then repositioned to the first level for more complete axial burnup. In a preferred embodiment the first level boils water to generate saturated steam, and the second level is cooled by the saturated steam and generates superheated steam.

    摘要翻译： 根据本发明，具有循环传热流体的核反应堆具有双层铁芯，其在燃料配置中提供增强的灵活性。 双级核心包括两组燃料单元，一组安排在第一级，另一组安排在第二级。 优选地，第二级的燃料单元布置成与第一级的燃料单元垂直对准。 这允许通过仅移除第二级的相邻燃料单元来访问第一级的燃料单元。 在加油操作期间，燃料单元可以从一个级别转移到另一个级别，在不同的燃耗阶段中为单元布置提供了额外的灵活性。 优选地，第一级的燃料单元相对于第二级的燃料单元反转。 反转提供了将燃料棒的集气室部分放置在彼此不同的水平面上，使得气室不会在中子产生中引入不连续性，并允许更均匀的轴向燃料燃尽。 双层核心允许最初将燃料定位在第二级，以将可燃燃料转化为易裂变燃料，然后重新定位到第一级以进行更完整的轴向燃烧。 在一个优选实施例中，第一级别使水沸腾以产生饱和蒸汽，第二级由饱和蒸汽冷却并产生过热蒸汽。

    Reactivity control system and method
    97.
    发明授权
    Reactivity control system and method 失效
    反应控制系统及方法

    公开(公告)号：US5130078A

    公开(公告)日：1992-07-14

    申请号：US667797

    申请日：1991-03-11

    申请人： Charles W. Dillman

    发明人： Charles W. Dillman

    IPC分类号： F04D7/08 ,  F04D13/04 ,  F04D15/00 ,  F04D29/04 ,  F04D29/047 ,  F04D29/42 ,  F04D29/44 ,  G21C1/08 ,  G21C1/28 ,  G21C5/02 ,  G21C7/22 ,  G21C9/033 ,  G21C15/24 ,  G21C15/243

    CPC分类号： F04D29/047 ,  F04D13/043 ,  F04D15/0005 ,  F04D29/426 ,  F04D29/448 ,  F04D7/08 ,  G21C1/084 ,  G21C15/24 ,  G21C15/243 ,  G21C7/22 ,  G21C9/033 ,  G21C1/28 ,  G21C5/02 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y02E30/39

    摘要： A method and system for controlling nuclear reactivity in a nuclear reactor are disclosed. The method includes maintaining a nuclear position solution at an initial poison pressure less than the steam pressure within the reactor vessel. The method further includes channeling a pressurizing fluid into the holding tank for pressurizing the poison solution to a pressure greater than the initial pressure thereof, and draining by gravity the poison solution from the holding tank and into the reactor vessel for mixing with the water to reduce reactivity in the core.The system includes the holding tank, apparatus for channeling the pressurizing fluid from the reactor vessel to the holding tank, apparatus for channeling the poison solution from the holding tank by gravity into the reactor vessel, and a controller for opening a normally closed pressurizing valve and a normally closed drain valve to allow flow of the pressurizing fluid to, and the drained poison solution from, the holding tank through the respective channeling apparatus.

    摘要翻译： 公开了一种用于控制核反应堆中的核反应性的方法和系统。 该方法包括维持核位置溶液的初始毒性压力小于反应器容器内的蒸汽压力。 该方法还包括将加压流体引导到储存罐中，以将毒液溶液加压至大于其初始压力的压力，并通过重力排出毒液从储存罐排入反应器容器中以与水混合以减少 核心反应性。 该系统包括储罐，用于将加压流体从反应器容器引导到储存罐的装置，用于将毒液从重力引导到反应堆容器中的装置，用于将毒液从重力引导到反应堆容器中的装置，以及用于打开常闭加压阀的控制器， 一个常闭的排水阀，以允许加压流体通过相应的通道装置从储液罐流出并排出毒液。

    In-tank fuel reservoir with integral fill pump
    99.
    发明授权
    In-tank fuel reservoir with integral fill pump 失效
    带集成填充泵的油箱内油箱

    公开(公告)号：US5096391A

    公开(公告)日：1992-03-17

    申请号：US610767

    申请日：1990-11-08

    申请人： Charles H. Tuckey

    发明人： Charles H. Tuckey

    IPC分类号： F02M37/10 ,  F04D13/08 ,  F04D13/12 ,  F04D15/00 ,  F04D29/04 ,  F04D29/044

    CPC分类号： F04D29/044 ,  F02M37/106 ,  F04D13/086 ,  F04D13/12 ,  F04D15/0005

    摘要： A fuel delivery system for automotive engine and like applications that includes a canister for positioning within a fuel tank having a lower end with a fuel opening, and an internal wall spaced from such lower end dividing the canister into upper and lower fuel chambers. An electric-motor fuel pump is positioned within the upper chamber, and has a fuel inlet within the upper chamber, a fuel outlet for feeding fuel under pressure to an engine, and a rotary output shaft extending toward the canister wall. An impeller pump is positioned within the lower chamber and is coupled to the output shaft of the electric-motor pump in the upper chamber for pumping fuel from the lower chamber to the upper chamber. The impeller is coupled to the pump output shaft by a flexible coupling in the form of a coil spring. A check valve at the outlet of the impeller pump prevents return flow of fuel from the upper chamber to the lower chamber when the electric-motor pump is de-energized.

    摘要翻译： 一种用于汽车发动机和类似应用的燃料输送系统，其包括用于定位在具有燃料开口的下端的燃料箱内的罐和与将该罐分成上燃料室和下燃料室的下端隔开的内壁。 电动机燃料泵位于上部室内，并且在上部室内具有燃料入口，用于将压力下的燃料供给发动机的燃料出口和朝向罐壁延伸的旋转输出轴。 叶轮泵定位在下室内并且联接到上室中的电动机泵的输出轴，用于将燃料从下室泵送到上腔室。 叶轮通过螺旋弹簧形式的柔性联轴器联接到泵输出轴。 在叶轮泵的出口处的止回阀防止当电动机泵断电时燃料从上室返回到下室。

    Barrel pump
    100.
    发明授权
    Barrel pump 失效
    桶式泵

    公开(公告)号：US4909704A

    公开(公告)日：1990-03-20

    申请号：US166720

    申请日：1988-03-11

    申请人： Karl Lutz

    发明人： Karl Lutz

    IPC分类号： F04D29/70 ,  F04D13/08 ,  F04D15/00

    CPC分类号： F04D15/0005 ,  F04D13/08

    摘要： The barrel pump has at the lower end of its housing wall a sliding sleeve which--in the open position--exposes the inlet openings at the lower end of the housing wall and--in the closed position--in which it rests against a base plate, closes these inlet openings. The base plate projects in the radial direction beyond the housing wall and, consequently, closes the pump from below. Penetration by the liquid can, hence, only occur through the inlet openings provided on the periphery of the housing wall of the pump. Displacement of the sliding sleeve takes place in that at the underside of the sliding sleeve pressure pieces are provided, which in the close position project beyond the base plate downward and upon the pump being placed down due to the weight of the pump acting downward are displaced upward against the action of a spring acting on the sliding sleeve which frees the sliding sleeve from its sealing contact on the base plate and, consequently, permits entrance of the liquid through the inlet openings. When the pump is lifted, the sliding sleeve is pushed again into its closed position by the spring. Manipulating the sliding sleeve can also take place manually with the manipulating device.

    摘要翻译： 桶式泵在其壳体壁的下端具有滑动套筒，该套筒在敞开的位置上暴露在壳体壁的下端处的入口开口，并且处于关闭位置，在该位置中，它靠在基板上， 关闭这些入口。 基板在径向方向上突出超出壳体壁，因此从下方关闭泵。 因此，液体的渗透可以仅通过设置在泵的壳体壁的周边上的入口开口发生。 发生滑动套筒的位移是因为在滑动套筒的下侧设有压力片，压力片在紧密位置向下突出超过底板，并且由于向下作用的泵的重量被放置在泵的下方 向上抵抗作用在滑动套筒上的弹簧的作用，其使滑动套筒从底板上的密封接触释放，并因此允许液体通过入口开口进入。 当泵被提起时，滑动套筒被弹簧再次推入其关闭位置。 操纵滑动套筒也可以通过操纵装置手动进行。