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    Centrifugal pump
    11.
    发明授权
    Centrifugal pump 有权

    公开(公告)号：US11603844B2

    公开(公告)日：2023-03-14

    申请号：US17415351

    申请日：2019-12-19

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Róbert Csányi

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

    Abstract: A centrifugal pump (1) including: a pump housing (3) enclosing a pump chamber (13), the pump chamber (13) including a suction inlet (15) and a pressure outlet (17); an impeller (19) rotatably arranged within the pump chamber (13) for being driven to rotate about a rotor axis (R), the suction inlet (15) being located coaxial with the rotor axis (R); and at least one stationary scraper (39). The impeller (19) includes an impeller base (31) and at least one or more impeller vanes (33) extending from the impeller base (31) towards the suction inlet (15). Each of the impeller vanes (33) includes a radially innermost vane path (45) describing during impeller rotation a central volume (41) that is wider towards the suction inlet (15) than towards the impeller base (31) and configured to receive the at least one scraper (39) projecting from the suction inlet (15) into the central volume (41).

    Method for operating an electronically controlled pump assembly
    12.
    发明授权
    Method for operating an electronically controlled pump assembly 有权

    公开(公告)号：US11566625B2

    公开(公告)日：2023-01-31

    申请号：US16474929

    申请日：2017-12-18

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Henrik Juul Nielsen ,  Mathis Dahlqvist

    IPC: F04D13/06 ,  F04D15/00

    Abstract: A method serves for operating an electronically controlled pump assembly (1), with which setting parameters of the pump (2) can be adjusted in an electronic control (6), for adaptation to the hydraulic demands of the location installation situation (4, 5). Operating data is registered during the operation of the pump assembly (1). After a predefined time and on the basis of the registered operating data, it is examined as to whether the pump assembly (1) has been set vis-à-vis the factory settings. If this is not the case a signal (11) is issued in order to point out the necessary setting.

    A HEATING SYSTEM AND METHOD OF MANUFACTURING A HEATING SYSTEM
    13.
    发明申请
    A HEATING SYSTEM AND METHOD OF MANUFACTURING A HEATING SYSTEM 有权

    公开(公告)号：US20220418049A1

    公开(公告)日：2022-12-29

    申请号：US17781648

    申请日：2020-12-03

    Applicant: Grundfos Holding A/S

    Inventor： Flemming Buus Bendixen ,  Alexandro Sorea ,  Peter Valler ,  Henrik Rasmussen ,  Allan Ivo Søegaard

    IPC: H05B3/82 ,  H05B3/12 ,  F24H1/10 ,  F24H3/00 ,  B22F3/20 ,  B22F3/10 ,  B22F7/06

    Abstract: The invention relates to a heating system (200) for heating of a fluid. The heating system comprises a supply connection (201) in fluid communication with a supply of fluid to be heated. It further comprises a structured body (108) arranged for heating of the fluid during use of the heating system. The structured body comprises a macroscopic structure (21) of electrically conductive material, the macroscopic structure comprising at least one channel (22) through which the fluid can flow. The heating system further comprises at least two conductors (103,114) configured to electrically connect the structured body to at least one electrical power supply. The at least two conductors are electrically connected to the structured body at a first end (204) and at a second end (205), respectively, of a conductive path within the structured body. The structured body is configured to direct an electrical current to run along the conductive path from the first end to the second end thereof. The electrical power supply is configured to heat at least part of said structured body to a temperature of below 400° C. by passing an electrical current through said structured body during use of the heating system.

    METHOD OF EXTRUDING A POWDER METALLURGICAL COMPONENT
    14.
    发明申请
    METHOD OF EXTRUDING A POWDER METALLURGICAL COMPONENT 有权

    公开(公告)号：US20220410258A1

    公开(公告)日：2022-12-29

    申请号：US17781645

    申请日：2020-12-03

    Applicant: Grundfos Holding A/S

    Inventor： Alexandro Sorea ,  Peter Valler ,  Henrik Rasmussen

    IPC: B22F1/10 ,  B22F3/20 ,  B22F3/10 ,  F26B21/00

    Abstract: The invention relates to a method of manufacturing a component (21) from metal-containing powder. A paste is prepared by mixing at least a powder (11) comprising metal, a binder (12) in an amount of 2 to 8 weight % of the paste (10), and liquid (13), such as water, in an amount of 5 to 25 weight % of the paste (10). The paste is transferred to an extruder (31), and the paste is extruded into a green body (20) by using an extrusion pressure (P) of more than 50 bar. Then the green body (20) is dried and sintered or oxidized to obtain the final component.

    PUMP DEVICE AND METHOD FOR DETERMINING THE CONCENTRATION OF A SUBSTANCE INSIDE A LIQUID
    17.
    发明申请
    PUMP DEVICE AND METHOD FOR DETERMINING THE CONCENTRATION OF A SUBSTANCE INSIDE A LIQUID 有权

    公开(公告)号：US20220057351A1

    公开(公告)日：2022-02-24

    申请号：US17434339

    申请日：2020-02-26

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Gert Friis ERIKSEN ,  Jørgen JENSEN

    IPC: G01N27/02 ,  F04D13/06 ,  F04D15/00 ,  F04D15/02 ,  G01N33/28

    Abstract: A pump device has at least one chamber (22) or conduit containing or provided for containing a liquid, a concentration sensor (24) arranged in the chamber (22) or conduit for detecting a concentration of a substance in the liquid and an evaluation unit (28) connected to the sensor (24). The sensor (24) and the evaluation unit (28) are configured for an electrical impedance measurement. The evaluation unit (28) is configured such that a measurement for detecting the concentration is carried out by use of an electrical signal applied to the sensor (24) having at least one frequency corresponding to or above an upper cut-off frequency (f2) of a frequency range showing a constant electrical impedance (Rm). A method is provided for determining the concentration of a substance inside a liquid.

    CENTRIFUGAL PUMP
    18.
    发明申请
    CENTRIFUGAL PUMP 有权

    公开(公告)号：US20220056911A1

    公开(公告)日：2022-02-24

    申请号：US17415351

    申请日：2019-12-19

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Róbert CSÁNYI

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

    Abstract: A centrifugal pump (1) including: a pump housing (3) enclosing a pump chamber (13), the pump chamber (13) including a suction inlet (15) and a pressure outlet (17); an impeller (19) rotatably arranged within the pump chamber (13) for being driven to rotate about a rotor axis (R), the suction inlet (15) being located coaxial with the rotor axis (R); and at least one stationary scraper (39). The impeller (19) includes an impeller base (31) and at least one or more impeller vanes (33) extending from the impeller base (31) towards the suction inlet (15). Each of the impeller vanes (33) includes a radially innermost vane path (45) describing during impeller rotation a central volume (41) that is wider towards the suction inlet (15) than towards the impeller base (31) and configured to receive the at least one scraper (39) projecting from the suction inlet (15) into the central volume (41).

    GUIDE CLAW AND A METHOD OF ARRANGING A PUMP ON A BASE
    20.
    发明申请
    GUIDE CLAW AND A METHOD OF ARRANGING A PUMP ON A BASE 有权

    公开(公告)号：US20220026011A1

    公开(公告)日：2022-01-27

    申请号：US17369636

    申请日：2021-07-07

    Applicant: Grundfos Holding A/S

    Inventor： Per HOVMAND

    IPC: F16M1/00

    Abstract: Some particular preferred embodiments relate to the field of pumping stations for sewage and wastewater with submersible pumps mounted in the bottom of the wells. To allow easy cleaning and maintenance of the pumps without getting in contact with the dirty water the solution is a system for easy lifting of the pump out of the well and lowering the pump again with an auto coupling.

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