公开(公告)号：US20210010476A1

公开(公告)日：2021-01-14

申请号：US16925126

申请日：2020-07-09

Applicant: GRUNDFOS HOLDING A/S

Inventor： Allan Hjarbæk HOLM ,  Morten Vammen ØRSNÆS ,  Lars ØSTERGAARD

IPC: F04D13/06 ,  F04D29/02 ,  F04D29/08

Abstract: A submersible pump assembly includes an electric motor (1) and a centrifugal pump, which is driven by the electric motor (1). A rotor (4) formed of plastic or composite material which is manufactured in the extrusion or pultrusion method.

公开(公告)号：US20200378374A1

公开(公告)日：2020-12-03

申请号：US16884594

申请日：2020-05-27

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten NIELSEN ,  Christoffer NEDERGAARD ,  Kjeld Vinther JACOBSEN ,  Karsten DYRBYE ,  John JESSEN GAMMELGAARD

IPC: F04B17/04

Abstract: A submersible pump assembly (1) includes a submersible pump (2) with a housing (3), and a sensor capsule (4) with a hermetically sealed casing (5). The sensor capsule (4) is releasably mountable at a sensor position (6) located at an outer face (7) of the housing (3) of the submersible pump (2). The submersible pump (2) includes a primary coil (8) within the housing (3). The sensor capsule (4) includes a secondary coil (9) within the casing (5). The primary coil (8) and the secondary coil (9) are arranged to be inductively coupled with each other for wirelessly transferring data and/or power through the housing (3) and the casing (5) when the sensor capsule (4) is mounted at the sensor position (6).

公开(公告)号：US10833554B2

公开(公告)日：2020-11-10

申请号：US15581096

申请日：2017-04-28

Applicant: GRUNDFOS HOLDING A/S

Inventor： Pino Brösamle ,  Georg Blaser

IPC: H02K5/22 ,  F04D13/06 ,  H02K5/128 ,  F04D29/02 ,  H02K11/33 ,  H02K5/10 ,  H02K15/14 ,  F04D29/62 ,  F04D29/40 ,  F04D29/18

Abstract: A circulation pump assembly, with a wet-running electrical drive motor (4), includes a pump casing (6) as well as a motor housing (22) which is connected to the pump casing (6). The motor housing (22) is a combined stator and electronics housing that accommodates a stator (18) of the drive motor (4) as well as motor electronics (34). The motor housing (22), at a first axial end (24) facing the pump casing (6), is closed by an air gap sleeve (16) of the drive motor. The motor housing (22), at a second axial end (26) which is away from the pump casing (6), includes an opening (42) closed by a cover (28). An interior of the motor housing (22), in a region adjacent the first axial end (24), is filled with a potting mass (40) surrounding the stator (18) and the motor electronics (34).

公开(公告)号：US10823186B2

公开(公告)日：2020-11-03

申请号：US16027509

申请日：2018-07-05

Applicant: GRUNDFOS HOLDING A/S

Inventor： Brian Lundsted Poulsen ,  Anders Bøge Jensen

IPC: F04D29/046 ,  F16J15/00 ,  F04D29/62 ,  F04D29/047 ,  F16C33/76 ,  F04D29/12 ,  F04D1/00 ,  F16C35/02

Abstract: A pump bearing retainer (1), for a wet-running pump, includes a radially inner section (3) including an inner section surface (9) for a press-fit contact with an essentially cylinder-shaped radial outer surface (29) of a pump bearing (13). A radially outer section (7) includes an annular or essentially conical-shaped outer section surface (17) with a cone angle (θ1) equal to or larger than 45°. An intermediate section (5) extends from the inner section (3) to the outer section (7). The intermediate section (5) includes an essentially conical-shaped intermediate section surface (15) with a cone angle (θ2) smaller than 45°. A longitudinal cross-section area (A) of the inner section (3) is smaller than a longitudinal cross-section area (B) of the intermediate section (5).

公开(公告)号：US10801737B2

公开(公告)日：2020-10-13

申请号：US15028576

申请日：2014-10-08

Applicant: GRUNDFOS HOLDING A/S

Inventor： Thomas Blad

IPC: F24D19/10 ,  F04D15/00 ,  G05D23/19

Abstract: A method for adapting the control of the feed temperature of a heating installation to a building to be heated or at least to a building part to be heated, with which the heating installation supplies the building or the building part with heat by way of a heat transfer medium led in the circuit. The circuit comprises at least one temperature-controlled heating circuit. The flow rate of the heat transfer medium in the circuit is registered in a continuous manner or in temporal intervals. The adaptation of the control of the feed temperature is effected automatically in dependence on the registered values.

公开(公告)号：US10690423B2

公开(公告)日：2020-06-23

申请号：US14546305

申请日：2014-11-18

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten Skovmose Kallesøe ,  Brian Kongsgaard Nielsen

IPC: F28F27/02 ,  F24D19/10 ,  G05D23/19 ,  G05D23/13 ,  F24D5/04 ,  F24F3/08

Abstract: A control method for a heat transfer system, wherein the heat transfer system comprises a supply conduit (12), at least one load circuit (2) and a heat transfer device (6; 28) between the supply conduit and the at least one load circuit, wherein a supply flow (qS) in the supply conduit (12) is detected on the basis of a desired entry-side load temperature (Tref), of an actual entry-side load temperature (TL) which is detected in the load circuit (2) and of a load flow (qL) in the load circuit (2), as well to as a heat transfer system, in which such a control method is applied.

公开(公告)号：US20200072227A1

公开(公告)日：2020-03-05

申请号：US16493211

申请日：2018-03-12

Applicant: GRUNDFOS HOLDING A/S

Inventor： Thomas BLAD ,  Peter MØNSTER

IPC: F04D15/00 ,  F04D13/06

Abstract: A pump assembly includes an electrical drive motor, at least one impeller (14) which is rotatingly driven by the electrical drive motor as well as a control device (17) which activates the drive motor. The control device (17) is configured such that the control device (17) selectively activates the drive motor in at least one first or a second operating mode. In a first operating mode, the drive motor is activated by the control device (17) such that a rotor (6) of the drive motor continuously rotates. In the second operating mode the drive motor is controlled by the control device (17) such that the rotor (6) of the drive motor is moved further stepwise manner in at least one selected angular step of preferably smaller than 360°.

公开(公告)号：US20190331118A1

公开(公告)日：2019-10-31

申请号：US16471978

申请日：2017-12-15

Applicant: GRUNDFOS HOLDING A/S

Inventor： Jan Carøe AARESTRUP ,  Anders Silkær MIKKELSEN ,  Carsten CHRISTENSEN ,  Simon MØLGAARD MØLLER ,  Rasmus Ørndrup NIELSEN

IPC: F04D15/00 ,  F04D13/06 ,  G01D1/12 ,  G01D3/024

Abstract: An electromotorically driven pump (1) includes control electronics (6) for the connection of at least one sensor (5). The control electronics (6) are configured to detect values of an output signal (9) of the connected sensor (5) continuously or in temporal intervals, and after completion of a predefined time, to automatically set a measurement range of the sensor (5) based on the detected values.

公开(公告)号：US20190323494A1

公开(公告)日：2019-10-24

申请号：US16474929

申请日：2017-12-18

Applicant: GRUNDFOS HOLDING A/S

Inventor： Henrik JUUL NIELSEN ,  Mathis DAHLQVIST

IPC: F04B49/06 ,  F04B17/03 ,  F04B17/06

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：US20190316595A1

公开(公告)日：2019-10-17

申请号：US16472596

申请日：2017-12-22

Applicant: GRUNDFOS HOLDING A/S

Inventor： Helge GRANN ,  John Frigård NIELSEN ,  Erik Bundesen SVARRE ,  Per Frost VEDSTED

IPC: F04D29/12 ,  F04D1/06 ,  F16J15/34

Abstract: A cartridge seal is provided for sealing a shaft (4) with respect to a housing (2) and is intended to be a slide ring seal arrangement (12) for a centrifugal pump. The cartridge seal includes a shaft protection sleeve which is rotationally connected to the shaft (4) by a retaining ring, a support (24) for incorporating the cartridge seal into a housing opening of the pump housing (2), a slide ring which is rotationally connected to the shaft protection sleeve and a counter slide ring which is rotationally connected to the support (24), as well as an enclosed space (30) within the sealing arrangement. The space (30) is fluidically connected to a sealing gap formed between the slide ring and the counter slide ring, and is at least partially prefilled with liquid in order to prevent dry running when the pump is operated for the first time.