公开(公告)号：US20240102478A1

公开(公告)日：2024-03-28

申请号：US18469332

申请日：2023-09-18

Applicant: Grundfos Holding A/S

Inventor： Bjarne Dindler Rasmussen ,  Lars Sund Mortensen ,  Ole Bech-Lisberg ,  Matthias Skødt Larsen

IPC: F04D27/00

CPC classification number: F04D27/004

Abstract: The invention relates in a first aspect to method of venting air out of a closed fluid system comprising a number of inter connected pipes configured for flow of a fluid, a variable speed pump configured for controlling the volume flow of fluid in said fluid system and an air venting device configured to let air out from the fluid system, the method comprising operating said pump in at least three phases.

公开(公告)号：US11923750B2

公开(公告)日：2024-03-05

申请号：US17551540

申请日：2021-12-15

Applicant: GRUNDFOS HOLDING A/S

Inventor： Steen Mikkelsen ,  Keld Folsach Rasmussen

IPC: H02K1/14 ,  H02K3/28 ,  H02K3/52 ,  H02K5/22

CPC classification number: H02K5/225 ,  H02K1/148 ,  H02K3/28 ,  H02K3/522 ,  H02K2203/06

Abstract: An electric pump drive motor three-phase stator assembly (1) includes three sets of stator segments (Si,j), configured in a ring about a stator axis (R). Each set includes n≥2 stator segments arranged in an n-fold rotational symmetry about the stator axis. Each stator segment includes a coil (3) having a first coil wire end and a second coil wire end. A plurality of 3n−3 connection wires (Wi,k) connect coils of a respective set of stator segments in series. A first and a second interposed stator segment are arranged in circumferential direction between the two connected coils of the respective set of stator segments. 3n−5 of the connection wires span across the first interposed stator segment at a distance (r1) to the stator axis and across the second interposed stator segment at a second distance (r2) to the stator axis (R). The second distance is larger than the first distance.

公开(公告)号：US11867186B2

公开(公告)日：2024-01-09

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

CPC classification number: F04D15/0088 ,  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).

公开(公告)号：US20240004377A1

公开(公告)日：2024-01-04

申请号：US18037366

申请日：2021-11-29

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten Skovmose KALLESØE ,  Abdul-Sattar HASSAN ,  Jan Carøe AARESTRUP

IPC: G05B23/02

CPC classification number: G05B23/0221 ,  E03F5/22

Abstract: A pump monitoring system associates a current operating state of a pump system including n≥1 pumps with one or more of k≥1 fault scenarios. The pump monitoring system includes an interface module for receiving at least one set of m≥2 operational values from the pump system. The m operational values define a current operational point in an m-dimensional operating space. A processing module processes operational values received by the interface module and consults given or determined model parameters describing a non-faulty model pump characteristic in the m-dimensional operating space and determines a k-dimensional decision vector with k decision vector components indicative of a deviation between an actual differential volume in the m-dimensional operating space based on distances between the m operational values and the non-faulty model pump characteristic, and a modeled differential volume in the m-dimensional operating space for the respective fault scenario.

公开(公告)号：US20230299646A1

公开(公告)日：2023-09-21

申请号：US18012697

申请日：2021-07-17

Applicant: GRUNDFOS HOLDING A/S

Inventor： Mikkel HAUGAARD ,  Steen MIKKELSEN

IPC: H02K11/33 ,  H02K5/18 ,  H02K5/20 ,  H02K9/06 ,  H02K9/22 ,  H02K11/40

CPC classification number: H02K11/33 ,  H02K5/18 ,  H02K5/207 ,  H02K9/06 ,  H02K9/227 ,  H02K11/40 ,  H02K2211/03

Abstract: A pump motor (1) includes a rotor (2) mounted to a drive shaft (3) extending along a rotor axis (L). The rotor (2) is circumferentially embraced by a stator. A stator housing (5), encloses the stator. The stator housing includes a first axial end and a second axial end. Electronics for powering and controlling the motor operation include a first portion, arranged on a first PCB, and a second portion, arranged on a second PCB (51). A first electronics housing (11) accommodates the first PCB. The first electronics housing (11) is arranged at a perimeter of the stator housing (5). A second electronics housing (47) accommodates the second PCB (51). The second electronics housing (47) is arranged at the second axial end of the stator housing (5). The second electronics housing (47) at least partially rings the drive shaft (3).

公开(公告)号：US11761465B2

公开(公告)日：2023-09-19

申请号：US17535319

申请日：2021-11-24

Applicant: GRUNDFOS HOLDING A/S

Inventor： Karsten Dyrbye ,  Kim Hulegaard Jensen ,  Henrik Kragh

IPC: F15B13/16 ,  F15B21/02

CPC classification number: F15B21/02 ,  F15B13/16

Abstract: A hydraulic system includes at least one hydraulic unit (2) having at least one flow path (14, 16, 18), an hydraulic actuator (22), provided for influencing a hydraulic flow through the flow path (14, 16, 18), at least one sensor device (24, 26), and a control device (10) for controlling the hydraulic actuator (22). The at least one sensor device (24, 26) includes a storage device (32) provided for containing information specifying the hydraulic unit (2). The control device (10) is configured to receive the information stored in the storage device (32) of the sensor device (24, 26) and to set up a control of the hydraulic actuator (22) based on the received information specifying the hydraulic unit (2). A method is provided for controlling the hydraulic actuator.

公开(公告)号：US20230167826A1

公开(公告)日：2023-06-01

申请号：US17921696

申请日：2021-04-26

Applicant: GRUNDFOS HOLDING A/S

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

IPC: F04D15/00 ,  F04D1/00 ,  F04D13/06 ,  F04D29/42 ,  F04D29/48 ,  F24D3/10 ,  F24D3/08

CPC classification number: F04D15/0016 ,  F04D1/006 ,  F04D13/06 ,  F04D29/4293 ,  F04D29/486 ,  F24D3/105 ,  F24D3/08

Abstract: The invention relates to a centrifugal pump assembly having an electric drive motor (2), at least one impeller (14) driven by said electric drive motor (2) and a valve element (24; 24′) rotatable between two 5 valve positions driven by a fluid flow produced by said impeller (14), wherein the valve element (24; 24′) has a cover plate (104; 104′) extending transverse to the rotational axis (X) of the impeller (14) and facing the impeller (14), wherein the valve element (24; 24′) having protrusions (102, 102′) arranged on an outer surface side facing away 10 from the impeller (14) such that a flow can act on them for driving the valve element (24; 24′).

公开(公告)号：US11630469B2

公开(公告)日：2023-04-18

申请号：US16860260

申请日：2020-04-28

Applicant: GRUNDFOS HOLDING A/S

Inventor： Anders Overgaard ,  Brian Kongsgaard Nielsen ,  Carsten Skovmose Kallesøe

IPC: F24F11/70 ,  G05D7/06 ,  F24D3/10 ,  F24D19/10 ,  F24F3/048 ,  F24F110/40 ,  F24F110/10

Abstract: A control system controls a fluid distribution system that includes consumer branches arranged in parallel. Each consumer branch includes a consumer element (31) consuming fluid and/or thermal energy, a regulating device (9) receiving a control value regulating a flow of fluid and/or thermal energy through the consumer branch, and a sensor (11) providing a measured value of the consumer branch. The control system includes a saturation calculation module (21) providing a saturation value, for each operational consumer branch, indicative of the saturation degree of the associated consumer branch, and a saturation compensation module (23) receiving the saturation values and altering a reference value. The altered reference value is based on an initial reference value and the saturation values from all consumer branches. The consumer branch regulating device, of each operational consumer branch, is controllable based on the altered reference value and the measured value of the associated consumer branch.

公开(公告)号：US20230025206A1

公开(公告)日：2023-01-26

申请号：US17786318

申请日：2020-12-16

Applicant: GRUNDFOS HOLDING A/S

Inventor： Jacob HANSEN

IPC: G05B19/042

Abstract: A method defines and configures a hardware setup (2) of a fluid processing system. A user input is processed (103) at a client module (15). The user input includes a set of requirement data for the fluid processing system, The set of requirement data is received (105) at a server module (17) from the client module. The server module is connected to the client module via a network (11). The hardware setup of the fluid processing system is defined (107) by a setup module based on the set of requirement data and stored catalogue data. A configuration file (25) is generated (109) by a configuration module based on the hardware setup and the set of requirement data. The hardware setup is approved (113) by the client module. The configuration file is transferred (116) to a generic control module (29) of the hardware setup for configuring the fluid processing system.

公开(公告)号：US20230020116A1

公开(公告)日：2023-01-19

申请号：US17951509

申请日：2022-09-23

Applicant: Grundfos Holding a/s

Inventor： John BOMHOLT ,  Niels Jørgen STRØM

IPC: G05D7/06 ,  F04D15/00

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