公开(公告)号：US20230194005A1

公开(公告)日：2023-06-22

申请号：US17921657

申请日：2021-04-26

Applicant: GRUNDFOS HOLDING A/S

Inventor： Olav JENSEN ,  Bent DØSSING ,  Thomas BLAD ,  Peter MØNSTER ,  Ole HANSEN

IPC: F16K11/074 ,  F04D15/00

CPC classification number: F16K11/074 ,  F04D15/0005

Abstract: A hydraulic valve device includes a first inlet port (20) and a second inlet port (22) and a valve element (24) for selectively closing one of the first and the second inlet port. The valve element (24; 24′) is rotatable between two valve positions such that a surface of the valve element is moved in a direction parallel to openings of the inlet ports. The valve element includes two separate sealing portions (72, 74), a first sealing portion (72) for closing the first inlet port and a second sealing portion (74) for closing the second inlet port. The two sealing portions are arranged such that in a first valve position a first sealing portion closes the first inlet port and in a second valve position a second sealing portion closes the second inlet port. A centrifugal pump device includes such hydraulic valve device.

公开(公告)号：US20230129537A1

公开(公告)日：2023-04-27

申请号：US18086867

申请日：2022-12-22

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.

公开(公告)号：USD978916S1

公开(公告)日：2023-02-21

申请号：US29739471

申请日：2020-06-25

Applicant: Grundfos Holding A/S

Designer： Jonas Kjær

公开(公告)号：US20230020274A1

公开(公告)日：2023-01-19

申请号：US17782286

申请日：2020-12-03

Applicant: HALDOR TOPSØE A/S ,  GRUNDFOS HOLDING A/S

Inventor： Peter Mølgaard MORTENSEN ,  Kasper Emil LARSEN ,  Kim AASBERG-PETERSEN ,  Sebastian Thor WISMANN ,  Flemming BUUS BENDIXEN ,  Peter VALLER ,  Alexandru SOREA

IPC: B01J35/04 ,  B01J35/00 ,  B01J21/04 ,  B01J15/00 ,  B01J19/24 ,  B01J19/00 ,  C01B3/40

Abstract: Structured catalyst arranged for catalyzing an endothermic reaction of a feed gas, said structured catalyst comprising a macroscopic structure of electrically conductive material, said macroscopic structure supporting a ceramic coating, wherein said ceramic coating supports a catalytically active material, wherein the electrically conductive material at least partly is a composite in the form of a homogenous mixture of an electrically conductive metallic material and a ceramic material, wherein the macroscopic structure at least partly is composed of two or more materials with different resistivities.

公开(公告)号：US11555553B2

公开(公告)日：2023-01-17

申请号：US16704479

申请日：2019-12-05

Applicant: GRUNDFOS HOLDING A/S

Inventor： Janus Lukas Sierakowski-Larsen

IPC: F16K27/02 ,  F04D29/42 ,  F04D13/06 ,  F16K15/06 ,  F04D13/16 ,  F04D15/00 ,  F04D1/06 ,  F04D29/62

Abstract: A non-return valve (19) for a water supply system (1) or a pump (4) is integrated in a flow channel (14) of the water supply system (1). The non-return valve (19) includes a sealing body (21) which is mounted within the channel (14), blocks the channel (14) in a first position forming the closure position and releases the channel (14) in a second position forming the opened position. The sealing body (21) is movably arranged on a holder (31) which includes a closure body (15), with which the holder (31) is releasably fastened in a housing opening.

公开(公告)号：US11555499B2

公开(公告)日：2023-01-17

申请号：US16492755

申请日：2018-03-12

Applicant: GRUNDFOS HOLDING A/S

Inventor： Thomas Blad

IPC: F04D15/00 ,  F04D13/06 ,  F04D29/42 ,  F24D3/10 ,  F04D29/48 ,  F04D1/00

Abstract: A centrifugal pump assembly includes an electrical drive motor (4, 6), an impeller (14) which is driven by the electrical drive motor (4, 6) as well as with at least one valve element (18) which is directly or indirectly movable along a first movement path between at least two switching positions, by the electrical drive motor (4, 6). At least a part of the valve element (18) is additionally movable along a second movement path which is different to the first movement path, between a released position, in which the valve element is distanced to at least one contact surface and a bearing position, in which the valve element bears on the at least one contact surface.

公开(公告)号：US11512712B2

公开(公告)日：2022-11-29

申请号：US16493177

申请日：2018-03-12

Applicant: GRUNDFOS HOLDING A/S

Inventor： Thomas Blad ,  Peter Mønster

IPC: F04D15/00 ,  F04D29/42 ,  F04D29/16 ,  F04D29/48 ,  F04D29/70

Abstract: A pump assembly includes at least one rotatingly driven impeller (14) and at least one valve element (18) which is rotatable about a rotation axis (X) between at least two switching positions. The valve element (18) includes a first face side (22) which extends transversely to the rotation axis of the valve element. A suction opening (24), which is engaged with a suction port (26) of the impeller (14), is formed in this first face side in a central region. The first face side (22) includes a pressure surface which surrounds the suction opening (24) and is adjacent to a delivery chamber (28) which surrounds the impeller (14).

公开(公告)号：US11378097B2

公开(公告)日：2022-07-05

申请号：US15355800

申请日：2016-11-18

Applicant: GRUNDFOS HOLDING A/S

Inventor： Erik Bundesen Svarre ,  John Frigård Nielsen ,  Finn Ulrich Storgaard ,  Iraj Babazadeh

IPC: F04D1/06 ,  F04D29/62 ,  F04D29/42 ,  F04D29/041 ,  F04D13/02 ,  F04D17/08 ,  F04D25/02 ,  F04D29/043 ,  F04D29/046 ,  F04D29/053 ,  F04D29/056 ,  F04D29/10

Abstract: A multi-stage centrifugal pump includes a pump casing, in which a shaft (8) carrying an impeller is rotatably arranged. The pump casing has a pump casing foot part (2) that includes a reversibly closable maintenance opening (60), via which a bearing and/or seal (20, 25), which is arranged at a shaft end within the pump casing, is accessible and exchangeable.

公开(公告)号：US11371509B2

公开(公告)日：2022-06-28

申请号：US16490129

申请日：2018-02-26

Applicant: GRUNDFOS HOLDING A/S

Inventor： Thomas Blad

IPC: F04D13/06 ,  F04D13/12 ,  F04D15/00 ,  F04D15/02

Abstract: A circulation pump assembly (22) includes an electrical drive motor (10) and an electronic control device (12) controlling the drive motor (10). The control device (12) is configured for the speed control of the drive motor (10) according to a control schema (I, II, III). The control device (12) includes a detection function (42) which is configured to detect a condition variable representing an operating condition, from a parallel flow path (16, 18, 20) with a second circulation pump assembly (22). The control device (12) is also configured such that it can change the control schema (I, II, III) on the basis of a condition variable detected by the detection function (42). Further an arrangement of at least two such circulation pump assemblies (22) and a method for the control of such two circulation pump assemblies (22) are provided.

公开(公告)号：US20220127163A1

公开(公告)日：2022-04-28

申请号：US17569314

申请日：2022-01-05

Applicant: GRUNDFOS HOLDING A/S

Inventor： Victor Augusto YANGALI-QUINTANILLA ,  Dominik Marek DOMINIAK ,  Wilhelmus Johannes Cornelis VAN DE VEN

IPC: C02F1/00 ,  B01D61/02 ,  B01D61/10 ,  B01D61/12 ,  C02F1/44 ,  B01D65/08 ,  C02F1/68

Abstract: A dosing pump (19) doses antiscalant into a membrane-based water treatment system (1). The dosing pump (19) includes a displacement body for pumping antiscalant into the membrane-based water treatment system (1) in doses. A motor drives the displacement body. A control module controls the motor. The control module is configured to vary the dosage of antiscalant pumped into the water treatment system (1) based on a temperature corrected system variable (SVTc) being based on a plurality of operating variables of the water treatment system (1).