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    RADIAL IMPELLER AND CASING FOR CENTRIFUGAL PUMP
    61.
    发明公开
    RADIAL IMPELLER AND CASING FOR CENTRIFUGAL PUMP 审中-公开
    用于离心泵的径向叶轮和套管

    公开(公告)号：EP2908012A3

    公开(公告)日：2015-12-30

    申请号：EP15152319.8

    申请日：2015-01-23

    申请人： McFinn Technologies

    发明人： McGinn, John J. ,  Finnigan, Leroy S.

    IPC分类号： F04D7/04 ,  F04D29/22 ,  F04D29/42

    CPC分类号： F04D7/04 ,  F04D29/2216 ,  F04D29/426

    摘要： An improved impeller (10) and a casing (37) for a centrifugal pump are disclosed. The impeller (10) comprises vanes (14a,b) which sweep an arc around an impeller axis (18) to provide a smooth path past the impeller (10) and through the pump. The casing (37) is constructed to allow maximum flow rate at the eye of the impeller (10) then shrink the flow channel to reduce internal recirculation promote efficiency, further limiting the effect of damaging forces. The impeller (10) is suited for use in pumps in which a high head is required and in which only low shear forces must be applied to the fluid moving through the pump.

    摘要翻译： 公开了一种用于离心泵的改进的叶轮（10）和壳体（37）。 叶轮（10）包括围绕叶轮轴线（18）扫弧的叶片（14a，b），以提供经过叶轮（10）并穿过泵的平滑路径。 壳体（37）构造成允许叶轮（10）的眼部处的最大流速然后收缩流动通道以减少内部再循环提高效率，从而进一步限制破坏力的影响。 叶轮（10）适用于需要高压头的泵，并且其中只有低剪切力必须施加到流过泵的流体。

    Impeller for centrifugal pump
    62.
    发明公开
    Impeller for centrifugal pump 审中-公开
    Laufradfüreine Kreiselpumpe

    公开(公告)号：EP2503156A1

    公开(公告)日：2012-09-26

    申请号：EP11002276.1

    申请日：2011-03-20

    申请人： Hydro-Vacuum S.A.

    发明人： Plutecki, Wojciech

    IPC分类号： F04D29/22

    CPC分类号： F04D29/2216

    摘要： A pump rotor is characterized by the fact that the rear shield diameter ( 1 ) is from 0.99 to 0.70 of the frontal shield diameter ( 2 ), whereas outlet blade( 2 ) edges ( 2 ) are parallel on its all length to the axis of rotor rotation. Outlet blade edges have got skips to be al wide, being from 0.01 to 0.9 of rotor discharge channel width; however its height a2 is from 0.01 to 0.5 of its width.

    摘要翻译： 泵转子的特征在于后屏蔽直径（1）为前屏蔽直径（2）的0.99至0.70，而出口叶片（2）的边缘（2）在其全部长度上平行于 转子旋转。 出口叶片边缘宽度大，转子排放通道宽度为0.01〜0.9; 然而其高度a2为其宽度的0.01至0.5。

    LAUFRAD
    65.
    发明公开
    LAUFRAD 有权

    公开(公告)号：EP1977114A1

    公开(公告)日：2008-10-08

    申请号：EP07702382.8

    申请日：2007-01-20

    申请人： Entec GBR

    发明人： BEEZ, Günther ,  CONRAD, Holger

    IPC分类号： F04D29/22 ,  F04D29/24

    CPC分类号： F04D29/2216 ,  F04D29/242

    摘要： The invention relates to closed impellers (1) for centrifugal pumps used for conveying homogeneous liquids, especially in cooling systems of motor vehicles. The aim of the invention is to develop a novel design of closed impellers (1) for centrifugal pumps used for conveying homogeneous liquids, especially in coolant pumps, such that closed impellers comprising single-curved blades (3) as well as closed impellers comprising three-dimensionally curved blades (3) can be produced at a low cost while the effect of cavitation wear is minimized on the parts/subassemblies that are mounted downstream of the impeller and the hydraulic efficiency as well as the suction behavior of the respective impeller design is significantly improved. Said aim is achieved by a closed impeller (1) for centrifugal pumps which is characterized in that the width of the blade channel continuously increases from the feeding point of the flow into the impeller to the discharge point of the flow from the impeller (1) from a perspective of the meridian section such that the ratio between the width (b2) at the discharge point and the width (b1) at the feeding point ranges from 1.01 to 1.2.

    摘要翻译： 本发明涉及用于输送均匀液体，特别是用于机动车辆的冷却系统的离心泵的封闭式叶轮（1）。 本发明的目的是开发一种用于输送均匀液体尤其是冷却剂泵的离心泵的闭式叶轮（1）的新颖设计，使得包括单曲叶片（3）的封闭叶轮以及包括三个 - 三维弯曲叶片（3）可以以低成本生产，而对于安装在叶轮下游的部件/子组件，空化磨损的影响被最小化，并且液压效率以及相应叶轮设计的抽吸行为是 明显改善。 所述目的通过一种用于离心泵的封闭叶轮（1）来实现，其特征在于，叶片通道的宽度从流入叶轮的进料点到叶轮（1）的流动的排出点连续增加， 从子午线部分的角度来看，放电点的宽度（b2）和馈电点的宽度（b1）之间的比例在1.01至1.2的范围内。

    Centrifugal pump, and use thereof
    66.
    发明公开
    Centrifugal pump, and use thereof 有权
    Zentrifugalpumpe und deren Anwendung

    公开(公告)号：EP1903216A1

    公开(公告)日：2008-03-26

    申请号：EP06120843.5

    申请日：2006-09-18

    申请人： IHC Holland NV

    发明人： Bugdayci, Hasan Hüseyin ,  van den Berg, Cornelis Hendrik

    IPC分类号： F04D7/04 ,  F04D29/22

    CPC分类号： F04D29/2216 ,  F04D7/04 ,  F04D7/045

    摘要： A centrifugal pump, in particular for the pumping of a mixture of substances possibly including stones and/or pebbles, comprises a volute pump housing which is provided with an axial inlet and a spout-shaped outlet attached tangentially to the circumferential wall of the pump housing. A rotor is attached in the pump housing such that it may rotate about an axial rotation axis. The rotor is provided with a central boss, a shaft shield fastened to the boss, a suction shield attached so as to be axially set apart from the shaft shield. The suction shield has an axial supply aligned with the axial inlet of the pump housing. The rotor comprises a plurality of rotor blades which arc fastened between the shields and each extend substantially transversely to the centre line of rotation between a radial outer end and a radial inner end. The rotor has an outermost diameter D w , whereas the shields define a width B w of the rotor extending between the mutually facing surfaces of the shaft shield and the suction shield. The axial supply of the rotor has a suction diameter D z , and the rotor blades define a spherical diameter Bol corresponding to the diameter of the largest sphere which may be introduced between the rotor blades. The ratio between the spherical diameter Bol and the suction diameter D z is greater than 0.43. The ratio between the width B w of the rotor and the suction diameter D z is greater than 0.43. The ratio between the external diameter D w of the rotor and the suction diameter D z is between 2.3 and 2.5. These values provide a centrifugal pump having a special hydraulic design.

    摘要翻译： 特别是用于泵送可能包括石头和/或鹅卵石的物质混合物的离心泵包括蜗壳泵壳体，该壳体设置有轴向入口和与泵壳体的周壁切向相连的出口形状的出口 。 转子附接在泵壳体中，使得其可绕轴向旋转轴线旋转。 转子设置有中心凸台，固定到凸台的轴罩，附接有与轴屏蔽件轴向设置的抽吸屏蔽。 抽吸屏蔽件具有与泵壳体的轴向入口对准的轴向供应。 转子包括多个转子叶片，它们紧固在屏蔽之间，并且每个在径向外端和径向内端之间基本横向于中心旋转线延伸。 转子具有最外径D w，而屏蔽限定转子的宽度B w，该转子在轴屏蔽件和吸入屏蔽件的相互面对的表面之间延伸。 转子的轴向供应具有吸入直径D z，并且转子叶片限定对应于可在转子叶片之间引入的最大球体的直径的球形直径Bol。 球形直径Bol与吸入直径D z之比大于0.43。 转子的宽度B w与吸入直径D z的比值大于0.43。 转子的外径D w与吸入直径D z之比为2.3〜2.5。 这些值提供了一种具有特殊液压设计的离心泵。

    CENTRIFUGAL IMPELLER AND PUMP APPARATUS
    67.
    发明公开
    CENTRIFUGAL IMPELLER AND PUMP APPARATUS 有权
    径向和泵装置

    公开(公告)号：EP1532367A2

    公开(公告)日：2005-05-25

    申请号：EP03791329.0

    申请日：2003-08-27

    申请人： EBARA CORPORATION

    发明人： KAWABATA, Junya ,  ENOMOTO, Takashi ,  ITO, Shoji

    IPC分类号： F04D29/22

    CPC分类号： F04D29/2255 ,  F04D29/2216

    摘要： The centrifugal impeller includes a plurality of blades (3), a plurality of fluid paths (P) for delivering a fluid from an impeller inlet (1) to an impeller outlet (2), and a shroud (4) and a hub (5) for forming the fluid paths (P). Each of the fluid paths (P) is formed between adjacent two of the blades (3). A curved line (L3) of the shroud (4) curves so as to project toward the hub (5) in a region from a blade inlet (A) to a predetermined position (C) of the blade (3), and the curved line (L3) curves so as to project toward the opposite side of the hub (5) in a region from the predetermined position (C) to a blade outlet (B).