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    DRY RUNNING DETECTION SYSTEM
    1.
    发明申请
    DRY RUNNING DETECTION SYSTEM 有权
    干运行检测系统

    公开(公告)号：US20150070036A1

    公开(公告)日：2015-03-12

    申请号：US14483353

    申请日：2014-09-11

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Flemming MUNK

    IPC: G01N27/06

    CPC classification number: G01N27/06 ,  F04D15/0218 ,  G01N29/032

    Abstract: The dry running detection system for a pump includes an ultrasonic transducer (8) designed for arrangement inside a pump housing (24) and electrically connected to a frequency generator (2) producing an electrical signal having a predefined frequency. An analyzing unit (10) of the system analyses the electrical signal applied to the ultrasonic transducer (8) and is designed to detect whether the ultrasonic transducer (8) is in contact with a liquid or not on basis of the signal level of the electrical signal.

    Abstract translation: 用于泵的干运行检测系统包括设计用于布置在泵壳体（24）内并且电连接到产生具有预定频率的电信号的频率发生器（2）的超声换能器（8）。 系统的分析单元（10）分析施加到超声换能器（8）的电信号，并且被设计为基于电气的信号电平来检测超声换能器（8）是否与液体接触 信号。

    CENTRIFUGAL PUMP
    2.
    发明申请
    CENTRIFUGAL PUMP 审中-公开

    公开(公告)号：US20170175749A1

    公开(公告)日：2017-06-22

    申请号：US15384603

    申请日：2016-12-20

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Erik Bundesen SVARRE ,  Jan Carøe AARESTRUP ,  Peter ELVEKJÆR ,  Flemming MUNK

    IPC: F04D27/00 ,  F04D15/00 ,  F04D17/08 ,  F01D5/02 ,  F04D29/053 ,  F04D29/22 ,  F04D29/28 ,  F04D1/06 ,  F04D29/043

    Abstract: A centrifugal pump includes at least one pump stage (14). This pump stage (14) includes an impeller (18) which is mounted rotationally fixed on a pump shaft (26). Apart from the pump stage (14), the centrifugal pump is equipped with a turbine wheel (32) which is arranged on the pump shaft (26), without a movement coupling to the pump shaft, in the delivery flow of the centrifugal pump. This turbine wheel (32) forms a transducer of a flow measuring device. A blading of the turbine wheel (32) is such that a torque exerted by the delivery flow onto the turbine wheel (32′) is directed counter to a torque exerted via the pump shaft (26) onto the impeller (18).

    AUTHORIZING A DATA COMMUNICATION WITH AN ELECTRONICALLY CONTROLLED PUMP UNIT
    3.
    发明申请
    AUTHORIZING A DATA COMMUNICATION WITH AN ELECTRONICALLY CONTROLLED PUMP UNIT 有权

    公开(公告)号：US20210297810A1

    公开(公告)日：2021-09-23

    申请号：US16473466

    申请日：2017-12-06

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Flemming MUNK ,  Casper Lyngesen MOGENSEN ,  Jacob HANSEN

    IPC: H04W4/029 ,  H04W4/021 ,  H04W4/02 ,  H04W12/06 ,  H04W84/12 ,  F04D15/00 ,  H04W64/00 ,  H04W48/04

    Abstract: A method for authorizing a data communication between an electronically controlled pump assembly (1) and an operating device (12), configured for wireless communication with the pump assembly (1), operating using an external server (10) connected to a data network. The method includes transferring the installation location data (GPS 1) of the pump assembly (1) to the server (10) via the data network. An identification code of the operating device (12) and the location data (GPS 2+3) of the operating device (12) are then transferred to the server via the data network. On the server side, it is examined whether the operating device (12) is envisaged for data communication with the pump assembly (1), and whether the operating device (12) is located in a predefined spatial region (A) to the pump assembly (1). Subsequently a data communication is enabled or blocked, for a time.

    SENSOR ARRANGEMENT AND METHOD FOR MONITORING A CIRCULATION PUMP SYSTEM
    6.
    发明申请
    SENSOR ARRANGEMENT AND METHOD FOR MONITORING A CIRCULATION PUMP SYSTEM 有权

    公开(公告)号：US20210388837A1

    公开(公告)日：2021-12-16

    申请号：US17291144

    申请日：2019-10-14

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Michael Helbo NYGAARD ,  Flemming MUNK ,  Søren KJELDSEN

    IPC: F04D15/00 ,  F04D1/06

    Abstract: A sensor arrangement is for monitoring a circulation pump system (1) which includes at least one pump (3). The sensor arrangement includes a first vibration sensor (5) installed at a first pump part (11) of one of the at least one pump (3) and a second vibration sensor (7) installed at a second pump part (13) of the pump (3) and an evaluation module (9). The first pump part (11) and the second pump part (29) have a distance to each other. The evaluation module (9), is configured to discriminate between at least two of k≥2 different types of faults based on comparing first signals received from the first vibration sensor (5) and second signals received from the second vibration sensor (7).

    SENSOR ASSEMBLY AND METHOD FOR FAULT DETECTION IN PUMPS AND PUMP ASSEMBLY WITH SENSOR ASSEMBLY
    7.
    发明申请
    SENSOR ASSEMBLY AND METHOD FOR FAULT DETECTION IN PUMPS AND PUMP ASSEMBLY WITH SENSOR ASSEMBLY 审中-公开

    公开(公告)号：US20190339162A1

    公开(公告)日：2019-11-07

    申请号：US16474361

    申请日：2017-12-18

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Flemming MUNK

    IPC: G01M13/045 ,  F04D13/06 ,  F04D29/046 ,  F04D29/66 ,  G01K1/14

    Abstract: A sensor assembly (2) is configured to perform fault detection in a pump assembly that includes an electric motor (70) and a fluid pump (30). The sensor assembly (2) includes a housing (4) configured to be mechanically attached to the pump (30) and configured to be attached into a bore provided in the pump (30). One or more vibration sensing element(s) (16) is/are arranged in the housing (4). The sensor assembly (2) includes a calculation unit (84) configured to receive sensor signals (V1, V2, V3) from the vibration sensing element(s) (16) and perform calculations and thereby detect motor bearing faults and cavitation.

    COUPLING HAVING AN INPUT-SIDE COUPLING PART AND AN OUTPUT-SIDE COUPLING PART
    9.
    发明申请
    COUPLING HAVING AN INPUT-SIDE COUPLING PART AND AN OUTPUT-SIDE COUPLING PART 审中-公开
    具有输入侧耦合部分和输出侧耦合部分的耦合

    公开(公告)号：US20160245343A1

    公开(公告)日：2016-08-25

    申请号：US14913796

    申请日：2014-06-10

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Flemming MUNK

    IPC: F16D3/10

    CPC classification number: F16D3/10 ,  Y10T464/20

    Abstract: A coupling has an input-side coupling part (1) and an output-side coupling part (2), which are connected to each other in a torque-transmitting manner in such a way that the coupling parts can be moved to a limited extent. The output-side coupling part (2) has a rod-shaped body (10) rigidly connected to the output-side coupling part, which rod-shaped body extends in the direction of the axis of rotation (9) of the coupling and is surrounded by a hollow body (5) rigidly connected to the other coupling part (1). Sensor elements (11, 12) are provided, by which the radial distance between the rod-shaped body (10) and the hollow body (5) is detected during the rotation of the coupling.

    Abstract translation: 联轴器具有输入侧联接部分（1）和输出侧联接部分（2），它们以扭矩传递方式彼此连接，使得联接部件可以有限地移动 。 输出侧联接部分（2）具有刚性地连接到输出侧联接部分的杆状体（10），该杆状体在联接器的旋转轴线（9）的方向上延伸，并且是 由与另一个联接部分（1）刚性连接的中空体（5）包围。 提供传感器元件（11,12），通过该传感器元件在联接器旋转期间检测棒状体（10）和中空体（5）之间的径向距离。

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