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285 条记录 (耗时 0.013 秒)

    Centrifugal pumps composed primarily of plastic components
    41.
    发明授权
    Centrifugal pumps composed primarily of plastic components 失效
    离心泵构成塑料组件的主要原料

    公开(公告)号：US3829238A

    公开(公告)日：1974-08-13

    申请号：US27937572

    申请日：1972-08-10

    申请人： SPECK W

    发明人： SPECK W

    IPC分类号： F04D29/02 ,  F04D29/42 ,  F04D7/00 ,  F04D7/02

    CPC分类号： F04D29/026 ,  F04D29/4286 ,  F05D2300/43 ,  F16H2041/246

    摘要： A centrifugal pump composed primarily of plastic components. The pump has a wall formed with an inlet through which liquid is sucked into the pump. A rotary impeller is coaxial with the inlet and located closely adjacent to the latter wall. This wall carries a wear-resistant disc which has an exposed surface directed toward and located closely adjacent to the impeller, defining a narrow gap therewith. Part of the wear-resistant disc is embedded in the housing wall, which is made of plastic, in such a way that part of the plastic material of the wall is situtated between the embedded portion of the disc and a plane which contains the exposed surface of the disc.

    Pump for molten salts and metals
    42.
    发明授权
    Pump for molten salts and metals 失效
    用于硬质合金和金属的泵

    公开(公告)号：US3776660A

    公开(公告)日：1973-12-04

    申请号：US3776660D

    申请日：1972-02-22

    申请人： NL INDUSTRIES INC

    发明人： ANDERSON L ,  ADAMS R ,  WEESE G

    IPC分类号： F04D7/06 ,  F04D7/02

    CPC分类号： F04D7/06 ,  F04D7/065

    摘要： A pump comprising a refractory body portion of oblate spheroidal configuration having apertures in the top and bottom thereof is provided with refractory covers for said apertures which covers are held securely in said apertures by upper and lower metal plates, respectively, the upper plate forming the base of a vertical housing for the pump impeller shaft and the lower plate being resiliently mounted for vertical movement relative to said upper plate to compensate for thermo-expansion and contraction of the pump elements.

    摘要翻译： 包括其顶部和底部具有孔的扁圆球形构造的耐火体部分的泵设置有用于所述孔的耐火盖，所述孔被分别由上金属板和下金属板牢固地保持在所述孔中，上板形成基部 用于泵叶轮轴的垂直壳体和下板弹性地安装成相对于所述上板垂直运动以补偿泵元件的热膨胀和收缩。

    Pump assembly for handling liquid materials
    43.
    发明授权
    Pump assembly for handling liquid materials 失效
    用于处理液体材料的泵组件

    公开(公告)号：US3733151A

    公开(公告)日：1973-05-15

    申请号：US3733151D

    申请日：1972-03-01

    申请人： DOW CHEMICAL CO

    发明人： TIMMONS H ,  DEITSCH H

    IPC分类号： F04D13/00 ,  F04D7/02 ,  F04D7/06 ,  F04D29/04 ,  F04D29/043 ,  F04B17/00

    CPC分类号： F04D29/043 ,  F04D7/02 ,  F04D7/06

    摘要： Disclosed is a pump assembly of the vertical submerged type, which has a rotatable shaft with a hollow upper portion and a solid, tapered lower portion. The pump is mounted on a tank containing liquid to be pumped by supporting the upper part of the shaft in a bearing pedestal mounted on top of the tank. A housing encloses the lower part of the pump shaft and an impeller is connected to the tip of the shaft. The impeller is enclosed by a head casing which has an inlet port and two outlet ports therein. Liquid drawn into the head casing is discharged through two separate discharge lines which converge into a single discharge line. The pump shaft is rotated by a motor having a hollow drive shaft, which is coupled to the hollow upper part of the pump shaft. During operation, the pump shaft is cooled by passing air through the hollow motor shaft and into the hollow part of the pump shaft. The pump assembly is particularly suitable for handling corrosive liquids at high temperatures, such as molten caustic.

    摘要翻译： 公开了一种具有垂直浸没式的泵组件，其具有可旋转的轴，其具有中空的上部和固体的锥形下部。 泵通过将轴的上部支撑在安装在罐顶部的轴承座中而安装在容纳待泵送的液体的罐上。 壳体包围泵轴的下部，并且叶轮连接到轴的尖端。 叶轮被头壳体包围，头壳体中具有入口和两个出口。 通过两个分离的排放管线将吸入头部外壳的液体排放到单个排放管线中。 泵轴由具有中空驱动轴的电动机旋转，该中空驱动轴联接到泵轴的中空上部。 在运行过程中，通过将空气通过中空电机轴并进入泵轴的中空部分来冷却泵轴。 泵组件特别适用于在高温下处理腐蚀性液体，例如熔融的苛性碱。

    ADDITIVELY MANUFACTURED OPTIMIZED FUEL PUMP VOLUTE ENTRANCE
    49.
    发明公开
    ADDITIVELY MANUFACTURED OPTIMIZED FUEL PUMP VOLUTE ENTRANCE 审中-公开

    公开(公告)号：US20240328433A1

    公开(公告)日：2024-10-03

    申请号：US18193359

    申请日：2023-03-30

    申请人： Hamilton Sundstrand Corporation

    发明人： Travis Marshall

    IPC分类号： F04D29/44 ,  F04D7/02 ,  F04D29/42

    CPC分类号： F04D29/445 ,  F04D7/02 ,  F04D29/4293 ,  B33Y80/00

    摘要： A pump assembly includes an impeller, a diffuser ring, and an additively manufactured coupler. The diffuser ring is fluidly coupled to the impeller. The additively manufactured coupler is fluidly coupled to the diffuser ring. The additively manufactured coupler has a teardrop shaped cross-section. The pump assembly also includes a volute fluidly coupled to the coupler. The volute is configured to receive fluid from the diffuser ring through the additively manufactured coupler. The teardrop geometry of the additively manufactured coupler is designed to reduce pressure loss in fluid flowing to the volute.