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    SELBSTANSAUGENDE PUMPENAGGREGATION
    1.
    发明公开
    SELBSTANSAUGENDE PUMPENAGGREGATION 有权

    公开(公告)号：EP2171279A2

    公开(公告)日：2010-04-07

    申请号：EP08784638.2

    申请日：2008-07-05

    申请人： GEA Tuchenhagen GmbH

    发明人： HACKERT, Stefan ,  PAWLIK, Markus

    IPC分类号： F04D9/04

    CPC分类号： F04D9/041

    摘要： The invention relates to a naturally-aspirated pump assembly which constitutes a series connection of a liquid ring pump, which operates as a rotating positive-displacement pump, and a normally-aspirated centrifugal pump, wherein the centrifugal pump has, in a housing which is provided with an inlet opening and a pressure pipe, a rotatably mounted shaft with a rotor, wherein an interior space which is delimited by a housing casing of the positive-displacement pump is connected by means of the inlet opening to a suction-side interior space of the centrifugal pump and a feed worm is arranged in the housing casing, which feed worm is fastened to the shaft which extends through the rotor and into the housing casing, and wherein a recirculation line is provided which directly or indirectly connects a pressure-side region of the centrifugal pump to the interior space. The invention refines the naturally-aspirated pump assembly of the generic type in such a way that the flow-related conditions for the flow of the liquid to and in the recirculation line are improved, the arrangement is of compact overall design and prefabrication of the recirculation line and its connecting points is provided. This is obtained in that the recirculation line (9) is connected at the centrifugal pump side by means of a first connecting point (9a) to a pressure-side interior space (3; 3*, 3**, 3a), which is connected downstream of the rotor (4) as viewed in the flow direction, within the housing (2.1/2.2).

    摘要翻译： 本发明涉及一种天然抽吸泵组件，其构成作为旋转式容积式泵运转的液环泵和常规抽吸离心泵的串联连接，其中离心泵在壳体内 设置有入口开口和压力管，具有转子的可旋转地安装的轴，其中由容积式泵的壳体壳体限定的内部空间通过入口连接到吸入侧内部空间 的离心泵，并且进料蜗杆布置在壳体壳体中，该进给蜗杆紧固到延伸穿过转子并进入壳体壳体的轴，并且其中提供再循环管线，其直接或间接连接压力侧 离心泵的区域到内部空间。 本发明以普通类型的自然抽吸泵组件的方式使得液体流向和再循环管线中的流动相关条件得到改善，该装置具有紧凑的整体设计和预制循环 线及其连接点。 这是因为再循环管线（9）通过第一连接点（9a）在离心泵侧连接到压力侧内部空间（3; 3 *，3 **，3a），这是 在外壳（2.1 / 2.2）内沿流动方向连接在转子（4）的下游。

    LAUFRAD FÜR EINE KREISELPUMPE UND KREISELPUMPE
    2.
    发明公开
    LAUFRAD FÜR EINE KREISELPUMPE UND KREISELPUMPE 有权
    循环泵和循环泵的轮子

    公开(公告)号：EP3303844A1

    公开(公告)日：2018-04-11

    申请号：EP16726585.9

    申请日：2016-06-02

    申请人： GEA Tuchenhagen GmbH

    发明人： PAWLIK, Markus ,  ZIMMER, Ulli

    IPC分类号： F04D7/04 ,  F04D29/22

    摘要： The invention relates to an impeller for a centrifugal pump (1), comprising a housing (2), an inlet (3), an outlet (4), and a chamber (13) which is provided in the housing (2) in fluidic connection with the inlet (3) and the outlet (4). The impeller (14, 414, 514, 614, 714, 814, 914, 1014, 1114, 1214) is received in the chamber (13) in a rotatable manner, and a gap (24) is provided between a rear face (22, 422, 522, 622, 722, 822, 922, 1022, 1122, 1222) of the impeller (14, 414, 514, 614, 714, 814, 914, 1014, 1114, 1214) and a housing wall (23). The aim of the invention is to improve the compatibility with media which form deposits. This is achieved in that the impeller (14, 414, 514, 614, 714, 814, 914, 1014, 1114, 1214) has at least one scraper (25, 425, 525, 625, 725, 825, 925, 1025, 1125, 1225) which is bonded to the impeller (14, 414, 514, 614, 714, 814. 914, 1014, 1114, 1214) at a first location (444, 544, 644, 744, 944, 1044, 1144) and a second location (445, 545, 645, 745, 945, 1045, 1 145). The first location (444, 544, 644, 744, 944, 1044, 1144) and the second location (445, 545, 645, 745, 945, 1045, 1145) are spaced apart, and a cleanable intermediate space (548, 648, 748, 948, 1048, 1148) is produced in the spacing between the scraper (25, 425, 525, 625, 725, 825, 925, 1025, 1125, 1225) and the rear face (22, 422, 522, 622, 722, 822, 922, 1022, 1122).

    SELBSTANSAUGENDE PUMPE
    3.
    发明公开
    SELBSTANSAUGENDE PUMPE 审中-公开
    自我失控的泵

    公开(公告)号：EP3268616A1

    公开(公告)日：2018-01-17

    申请号：EP16709450.7

    申请日：2016-03-11

    申请人： GEA Tuchenhagen GmbH

    发明人： DIRKS, Stephan ,  PAWLIK, Markus

    IPC分类号： F04D29/22 ,  F04D1/06 ,  F04D9/02 ,  F04D9/04 ,  F04D29/62

    CPC分类号： F04D29/2277 ,  F04D1/06 ,  F04D3/02 ,  F04D9/02 ,  F04D9/04 ,  F04D9/041 ,  F04D29/043 ,  F04D29/62

    摘要： The invention relates to a self-priming pump (1) having a housing (9), an inlet (4) and an outlet (5), having a first impeller (15) with a first pump section (17) that is arranged in a first chamber (18), and a second impeller (16) with a second pump section (19) that is arranged a second chamber (20), and a shaft section (25) that is arranged between the pump sections (17, 19), which shaft section (25) comprises a shaft end (26) and passes through an opening (24) of a housing wall (23). According to the invention, in order to improve the net positive suction head of the pump (1), the shaft section (25) is formed in a tapering manner from the shaft end (26) to a necking (27) between the necking (27) and the shaft end (26), and the first impeller (15) and shaft section (25) have a smooth course between the necking (27) and the first pump section (17).

    PUMPENWELLE
    8.
    发明公开
    PUMPENWELLE 有权

    公开(公告)号：EP2992214A1

    公开(公告)日：2016-03-09

    申请号：EP14725001.3

    申请日：2014-04-24

    申请人： GEA Tuchenhagen GmbH

    发明人： BECKER, Kai ,  PAWLIK, Markus

    IPC分类号： F04D13/02 ,  F16D1/08 ,  F04D29/20

    CPC分类号： F04D29/20 ,  F04D13/021 ,  F04D29/126 ,  F04D29/628 ,  F16D1/0864

    摘要： The invention relates to a pump shaft (100), which comprises a first portion (102) that can be connected to an impeller (40) of a centrifugal pump, a second portion (104) configured to co-operate with a seal and suitable in particular for receiving an annular seal (22) of a mechanical seal, and a connecting portion (106), wherein the connecting portion (106) comprises a cylindrical cavity (118) having an end face (116) and in which a motor shaft (32) can be received, and the connecting portion (106) has at least two slots (112; 112'; 112") extending predominantly in an axial direction and at least two partially circumferential slots (110) extending predominantly in the circumferential direction, and the connecting portion (106) is sub-divided by the slots (110) extending in the circumferential direction into a guide portion (120) and, to create a force-locked connection with the motor shaft (32), into a clamping portion (124) elastically deformable in the circumferential direction and radial direction by a clamping means (140). In order to improve the pump shaft in such a way that a rotation free of imbalance can be reliably achieved, the connecting portion (106) according to the invention comprises a second guide portion (122) arranged on the side of the clamping portion (124) facing in an axial direction away from the guide portion (120), and at least two partially circumferential slots (114) extending predominantly in the circumferential direction are provided between the second guide portion (122) and the clamping portion (124).

    摘要翻译： 本发明涉及一种泵轴（100），其包括能够连接到离心泵的叶轮（40）的第一部分（102），被配置为与密封件配合并适合的第二部分（104） 特别是用于接收机械密封件的环形密封件（22）和连接部分（106），其中连接部分（106）包括具有端面（116）的圆柱形空腔（118），其中电机轴 （32），并且连接部分（106）具有主要沿轴向方向延伸的至少两个槽（112; 112'; 112“）和至少两个沿圆周方向主要延伸的部分周向狭槽（110） ，并且连接部分（106）被沿圆周方向延伸的槽（110）分成引导部分（120），并且与电动机轴（32）形成力锁定连接，形成夹紧 部分（124）在圆周方向上可弹性变形 通过夹紧装置（140）径向。 为了改善泵轴，可以可靠地实现不平衡的旋转，根据本发明的连接部分（106）包括布置在夹持部分（124）侧的第二引导部分（122） ）朝向远离引导部分（120）的轴向方向延伸，并且在第二引导部分（122）和夹紧部分（124）之间设置至少两个沿圆周方向主要延伸的部分圆周狭槽（114）。

    SCHEIBENVENTIL MIT LECKAGESICHERUNG
    9.
    发明公开
    SCHEIBENVENTIL MIT LECKAGESICHERUNG 有权
    碟阀泄露保护

    公开(公告)号：EP2352938A1

    公开(公告)日：2011-08-10

    申请号：EP09764714.3

    申请日：2009-11-18

    申请人： GEA Tuchenhagen GmbH

    发明人： SAUER, Martin ,  SCHMID, Werner ,  WIEDENMANN, Willi ,  WENGERT, Holger ,  SCHOLZ, Gundar ,  PAWLIK, Markus

    IPC分类号： F16K1/226 ,  F16K27/02

    CPC分类号： F16K27/0218 ,  F16K1/2265

    摘要： The invention relates to a disk valve (1) with leak prevention, having a valve housing (2) which is divided along a parting surface (5) and which has a first valve housing part (2a) with a first passage opening (2a*) and a second valve housing part (2b) with a second passage opening (2b*), having a disk-shaped closing member (3) for closing and opening the passage openings (2a*, 2b*), which closing member (3) is rotatable about a rotational axis (L) which runs in the valve housing (2), and having the further features of the preamble of claim 1. It is an object of the present invention to provide a disk valve with leak prevention of the generic type which ensures simple leakage discharge out of the annular groove in the closing member and a simple facility for flushing said annular groove, and which is of simpler design than the known solutions. This is achieved in that each of the connecting paths between the journal longitudinal bore (3d.4, 3d.5) and the associated duct (11a, 12a) is formed entirely in the associated valve housing part (2a, 2b), in each case proceeding from the outer side of the interposed switching seal (9; 9*) as viewed in the radial direction.