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    Lightweight high pressure repairable piston composite accumulator with slip flange
    3.
    发明授权
    Lightweight high pressure repairable piston composite accumulator with slip flange 有权
    轻型高压可修复活塞复合蓄能器，带滑动法兰

    公开(公告)号：US08695643B2

    公开(公告)日：2014-04-15

    申请号：US12267783

    申请日：2008-11-10

    申请人： Bahram S. Rajabi ,  Allen R. Hansen

    发明人： Bahram S. Rajabi ,  Allen R. Hansen

    IPC分类号： F16L55/04

    CPC分类号： F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/4053 ,  F15B2201/4056 ,  F15B2201/605

    摘要： A reduced weight and repairable piston accumulator. The accumulator includes a load bearing metallic cylinder with removable end caps secured thereto with slip flanges for allowing repairability and for achieving the required cycle life. The cylinder serves as the surface on which the piston slides and is designed such that it sustains the axial stress induced by pressurization of the accumulator. A composite over wrapping is designed such that it sustains the stress in the hoop (radial) direction. A stress transitioning bushing can be provided for transitioning hoop stresses between the overwrap and the slip flange. When combined with the cylinder, the fibers of the composite wrap will not be placed in shear and thus will not fatigue in the same manner as some prior art designs.

    摘要翻译： 减重和可修复的活塞蓄能器。 蓄能器包括承载金属圆筒，其具有固定到其上的滑动凸缘的可拆卸的端盖，用于允许可修复性并实现所需的循环寿命。 气缸用作活塞滑动的表面，并被设计成使得其保持由蓄能器的加压引起的轴向应力。 设计复合材料以使其在箍（径向）方向上承受应力。 可以提供应力转变衬套，用于在外包装和滑动凸缘之间过渡环向应力。 当与圆筒组合时，复合包裹物的纤维将不会被放置在剪切中，因此不会像现有技术设计中那样相同的方式疲劳。

    Conversion of NO.sub.x in FCC bubbling bed regenerator
    4.
    发明授权
    Conversion of NO.sub.x in FCC bubbling bed regenerator 失效
    FCC沸腾床再生器中NOx的转化

    公开(公告)号：US5382352A

    公开(公告)日：1995-01-17

    申请号：US963357

    申请日：1992-10-20

    申请人： Allen R. Hansen ,  David L. Johnson ,  Scott A. Stevenson ,  Paul H. Schipper ,  Mohsen N. Harandi

    发明人： Allen R. Hansen ,  David L. Johnson ,  Scott A. Stevenson ,  Paul H. Schipper ,  Mohsen N. Harandi

    IPC分类号： C10G11/18 ,  C10G11/00 ,  C01B21/00

    CPC分类号： C10G11/182

    摘要： Oxides of nitrogen (NO.sub.x) emissions from FCC regenerators in complete CO combustion mode are reduced by degrading regenerator performance to increase the coke on regenerated catalyst. High zeolite content cracking catalyst, regenerated to contain more coke, gives efficient conversion of feed and reduces NO.sub.x emissions from the regenerator. Operating with less catalyst, e.g., 30-60% of the normal amount of catalyst in the bubbling dense bed, can eliminate most NO.sub.x emissions while increasing slightly plant capacity and reducing catalyst deactivation.

    摘要翻译： 通过降低再生器的性能，增加再生催化剂上的焦炭，可以降低FCC再生器在完全CO燃烧模式下的氮氧化物（NOx）排放。 再生含有更多焦炭的高沸石含量裂化催化剂能够有效地转化进料并减少再生器的NOx排放。 以较少的催化剂操作，例如起泡致密床中正常量的催化剂的30-60％可以消除大部分NOx排放物，同时增加轻微的装置容量并减少催化剂失活。

    LIGHTWEIGHT HIGH PRESSURE REPAIRABLE PISTON COMPOSITE ACCUMULATOR WITH SLIP FLANGE
    6.
    发明申请
    LIGHTWEIGHT HIGH PRESSURE REPAIRABLE PISTON COMPOSITE ACCUMULATOR WITH SLIP FLANGE 有权
    轻型高压可修复活塞式复合蓄能器与滑动法兰

    公开(公告)号：US20090126815A1

    公开(公告)日：2009-05-21

    申请号：US12267783

    申请日：2008-11-10

    申请人： Bahram S. Rajabi ,  Allen R. Hansen

    发明人： Bahram S. Rajabi ,  Allen R. Hansen

    IPC分类号： F16L55/04 ,  B23P15/00

    CPC分类号： F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/4053 ,  F15B2201/4056 ,  F15B2201/605

    摘要： A reduced weight and repairable piston accumulator. The accumulator includes a load bearing metallic cylinder with removable end caps secured thereto with slip flanges for allowing repairability and for achieving the required cycle life. The cylinder serves as the surface on which the piston slides and is designed such that it sustains the axial stress induced by pressurization of the accumulator. A composite over wrapping is designed such that it sustains the stress in the hoop (radial) direction. A stress transitioning bushing can be provided for transitioning hoop stresses between the overwrap and the slip flange. When combined with the cylinder, the fibers of the composite wrap will not be placed in shear and thus will not fatigue in the same manner as some prior art designs.

    摘要翻译： 减重和可修复的活塞蓄能器。 蓄能器包括承载金属圆筒，其具有固定到其上的滑动凸缘的可拆卸的端盖，用于允许可修复性并实现所需的循环寿命。 气缸用作活塞滑动的表面，并被设计成使得其保持由蓄能器的加压引起的轴向应力。 设计复合材料以使其在箍（径向）方向上承受应力。 可以提供应力转变衬套，用于在外包装和滑动凸缘之间过渡环向应力。 当与圆筒组合时，复合包裹物的纤维将不会被放置在剪切中，因此不会像现有技术设计中那样相同的方式疲劳。

    Crimped piston/membrane accumulator
    8.
    发明授权
    Crimped piston/membrane accumulator 有权
    压接活塞/膜式蓄能器

    公开(公告)号：US06460571B1

    公开(公告)日：2002-10-08

    申请号：US10026185

    申请日：2001-12-19

    申请人： Bahram S. Rajabi ,  Allen R. Hansen

    发明人： Bahram S. Rajabi ,  Allen R. Hansen

    IPC分类号： F16L5504

    CPC分类号： F16L55/053

    摘要： An accumulator for a fluid system includes a canister and an end cap at one or both ends of the canister. The end cap has a cylindrical peripheral surface, with a groove or channel having gradually rounded or curved sidewalls, formed circumferentially around the cap, and spaced from the axial ends of the cap. An annular, radially-outward projecting flange is provided at the axially outer end of the cap, and serves as a locating feature for the cap when it is inserted into the canister. A forming tool such as a crimping machine is used to mechanically deform the canister into the groove. The rounded shape of the groove creates a permanent, fluid-tight attachment with the canister. The accumulator can include either a piston or bladder.

    摘要翻译： 用于流体系统的蓄能器包括在罐的一端或两端的罐和端盖。 端盖具有圆柱形外周表面，其中沟槽或沟道具有逐渐圆形或弯曲的侧壁，围绕盖周向形成并且与帽的轴向端部间隔开。 在帽的轴向外端处设置有环形的径向向外突出的凸缘，并且当盖被插入到罐中时用作盖的定位特征。 使用诸如压接机的成形工具将罐机械地变形成凹槽。 槽的圆形形状与罐形成永久的，流体密封的附件。 蓄能器可以包括活塞或气囊。