公开(公告)号：US12158212B2

公开(公告)日：2024-12-03

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 ,  F16K3/08 ,  F24D3/10

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：US20240376897A1

公开(公告)日：2024-11-14

申请号：US18684159

申请日：2022-08-11

Applicant: GRUNDFOS HOLDING A/S

Inventor： Lars Sund MORTENSEN ,  Kim Hulegaard JENSEN

IPC: F04D15/00 ,  F04D13/06 ,  G01F1/06

Abstract: A computer-implemented method for determining a forward flow rate of fluid flow through a pump, the pump comprising an impeller and a pump motor, the forward flow rate being responsive to the impeller being driven by the pump motor to rotate in a forward direction and at a forward speed, the method comprising: obtaining an observed reverse power of the pump motor when the pump motor is operated to drive the impeller in a reverse direction, opposite the forward direction, and at a reverse speed; computing an estimate of the forward flow rate from at least the observed reverse power.

公开(公告)号：US12135033B2

公开(公告)日：2024-11-05

申请号：US17054419

申请日：2019-05-02

Applicant: GRUNDFOS HOLDING A/S

Inventor： Christian Schou ,  Christian Robert Dahl Jacobsen ,  Carsten Skovmose Kallesøe

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

Abstract: A monitoring module (13) identifies an operating scenario in a wastewater pumping station, with at least one pump (9a, 9b) arranged for pumping wastewater out of a wastewater pit (1) into a pipe (11). The monitoring module (13) is configured to process at least one load-dependent pump variable indicative of how the at least one pump (9a, 9b) operates and at least one model-based pipe parameter indicative of how the wastewater flows through the pipe (11) and/or the at least one pump (9a, 9b). The monitoring module is configured to identify an operating scenario in the wastewater pumping station by selecting an operating scenario from a group of predefined operating scenarios dependent on at least one first criterion that is based on the at least one load-dependent pump variable and at least one second criterion that is based on the at least one model-based pipe parameter.

公开(公告)号：US12030796B2

公开(公告)日：2024-07-09

申请号：US17100757

申请日：2020-11-20

Applicant: Grundfos Holding A/S

Inventor： Bruno Kiilerich ,  Martin Hørlück Lyngsø

IPC: C02F1/68 ,  C02F1/00 ,  G05D21/02 ,  C02F101/10

CPC classification number: C02F1/683 ,  C02F1/008 ,  C02F1/686 ,  G05D21/02 ,  C02F2101/101 ,  C02F2201/002 ,  C02F2209/00 ,  C02F2209/003 ,  C02F2209/005 ,  C02F2209/006 ,  C02F2209/26 ,  C02F2303/02 ,  C02F2303/18 ,  C02F2305/00 ,  C02F2307/08

Abstract: The present invention relates to a system and a method for abating the presence of a selected chemical substance in wastewater flowing in a wastewater channel system from an upstream position to a downstream position. The method typically comprising dosing into the wastewater, at the upstream position, chemical agent(s) adapted to abate the presence of said selected chemical substance, wherein the dosing is in an amount set by a dosing set-point, and adjusting the dosing set-point based on determinations of the concentration of the selected chemical substance at the downstream position. The invention involves comparison between a determined concentration and a pre-selected fractile and adjusting a dosing set-point based thereon.

公开(公告)号：US20240210268A1

公开(公告)日：2024-06-27

申请号：US18259616

申请日：2021-12-20

Applicant: Grundfos Holding A/S

Inventor： Daniel Hagen ROSENRING ,  Lars Sund MORTENSEN

IPC: G01M3/26

CPC classification number: G01M3/26

Abstract: A method for detecting leakage in a fluid system, comprising: receiving a pressure signal indicative of measured pressure values of a pressure in the fluid system measured at different points in time; determining a first filtered pressure signal indicative of variations of the measured pressure values over a first time scale; determining a second filtered pressure signal indicative of variations of the measured pressure values over a second time scale, shorter than the first time scale; outputting a leakage warning based on a comparison of the first filtered pressure signal and the second filtered pressure signal.

公开(公告)号：US12013298B2

公开(公告)日：2024-06-18

申请号：US17297158

申请日：2019-11-27

Applicant: Grundfos Holding A/S

Inventor： Kjeld V. Jacobsen ,  Casper Pedersen ,  Per Ellemose Andersen

IPC: G01L19/06

CPC classification number: G01L19/0645

Abstract: The present invention relates to cover for a pressure sensor. The cover is configured for being arranged to cover a sensor element.

公开(公告)号：US11927464B2

公开(公告)日：2024-03-12

申请号：US17098100

申请日：2020-11-13

Applicant: Grundfos Holding A/S

Inventor： Peter Elvekjær ,  Jesper Thørring Damgaard ,  Carsten Christensen

IPC: F04D15/00 ,  F02D41/14 ,  G01F1/05 ,  G06N3/044 ,  G06N3/08 ,  H02P6/34 ,  H02P25/089 ,  H02P29/60

CPC classification number: G01F1/05 ,  F02D41/1401 ,  F04D15/0088 ,  G06N3/044 ,  G06N3/08 ,  H02P6/34 ,  H02P25/089 ,  H02P29/60 ,  F04B2205/09

Abstract: Computer-implemented methods are disclosed for determining a flow rate of fluid flow at a target time through a pump, such as a centrifugal pump, the pump being driven by a pump motor. An illustrative method includes, in some aspects: receiving at least one set of previous parameter values including a first previous parameter value indicative of a first operational parameter of the pump motor at a previous time, earlier than the target time, and a second previous parameter value indicative of a second operational parameter of the pump motor at the previous time, and receiving a current set of parameter values including a first current parameter value indicative of the first operational parameter of the pump motor at the target time and a second current parameter value indicative of the second operational parameter of the pump motor at the target time.

公开(公告)号：US20240024821A1

公开(公告)日：2024-01-25

申请号：US18257355

申请日：2021-12-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： Dominik Marek DOMINIAK ,  Loreen Ople VILLACORTE ,  Victor Augusto YANGALI-QUINTANILLA ,  Sébastien D'ANTONIO ,  Simon HANSEN ,  Jan Carøe AARESTRUP

IPC: B01D61/12 ,  B01D65/02

CPC classification number: B01D61/12 ,  B01D65/02 ,  B01D2313/903 ,  B01D2313/18 ,  B01D2313/243 ,  B01D2315/10

Abstract: A control method uses in a membrane filter system operated in iterative filtration cycles, the cycles including a production period and a following flushing. A setting of a crossflow on the entrance side (4) of a membrane (2) in the production period is controlled such that the energy consumption (E) per filtration cycle reaches an optimum. A corresponding membrane filter system is provided.

公开(公告)号：USD1011209S1

公开(公告)日：2024-01-16

申请号：US29798934

申请日：2021-07-12

Applicant: Grundfos Holding A/S

Designer： Jonas Kjaer

Abstract: FIG. 1 is a front top left perspective view of a level controller showing a first embodiment of my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a rear elevational view thereof; and
FIG. 7 is a front elevational view thereof;
FIG. 8 is a front top left perspective view of a level controller showing a second embodiment of my new design;
FIG. 9 is a top plan view thereof;
FIG. 10 is a bottom plan view thereof;
FIG. 11 is a right side elevational view thereof;
FIG. 12 is a left side elevational view thereof;
FIG. 13 is a rear elevational view thereof; and,
FIG. 14 is a front elevational view thereof.
The broken lines depict portions of the level controller that form no part of the claimed design.

公开(公告)号：US11625052B2

公开(公告)日：2023-04-11

申请号：US14345767

申请日：2012-09-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： John Bomholt ,  Niels Jørgen Strøm

IPC: G05D7/06 ,  F04D15/00

Abstract: A pump unit (2) has an electrical drive motor (5) and a control device (4) for controlling the drive motor (5), wherein said control device (4) includes at least one microprocessor (8) and storage means (6) which is able to store at least one control program executable by said microprocessor (8), wherein said control device (4) includes or communicates with a programming module (7) by which at least one user application can be created and/or modified and stored in said storage means, wherein said programming module (7) is designed such that at least one input parameter (13), at least one operator (10) and at least one action (14) can be chosen as program elements and combined to generate at least one user function (18) of said user application which can be executed by said microprocessor.