Patents Assigned to Xylem Europe GmbH
  • Publication number: 20240400419
    Abstract: A UV radiator module includes a number of elongated UV radiators arranged with their longitudinal axes parallel to one another in the UV radiator module. The UV radiators are arranged in two parallel rows which are spaced apart from one another. A UV sensor is set up to detect UV radiation emitted by the UV radiators. The UV sensor is arranged between the two rows.
    Type: Application
    Filed: October 11, 2022
    Publication date: December 5, 2024
    Applicant: Xylem Europe GmbH
    Inventors: Mario Stuckert, Sven Kämmerer
  • Publication number: 20240376896
    Abstract: A method for priming of a pump in response to a priming condition includes confirming that the liquid level in the reservoir is located at the same level or above the upper portion of the impeller, driving the impeller in a reverse direction of rotation for a time duration between 2 seconds and 5 seconds, stopping the impeller from rotating in the reverse direction of rotation, driving the impeller in a forward direction of rotation, detecting, during the forward operation of the impeller, whether too much gas is present in the volute, and in response to detection of too much gas in the volute, stopping the impeller from rotating in the forward direction of rotation and driving the impeller in the reverse direction of rotation, and in response to non-detection of too much gas in the volute, exiting the priming of the pump.
    Type: Application
    Filed: September 26, 2022
    Publication date: November 14, 2024
    Applicant: Xylem Europe GmbH
    Inventor: Jan Bäcke
  • Patent number: 12123756
    Abstract: An insert-type electromagnetic flow sensor is disclosed. The flow sensor comprises an insert, first and second electrodes supported on opposite sides of the insert and a drive coil housed in the insert. The drive coil is offset from a midpoint between the first and second electrodes and/or a width of the drive coil between the first and second opposite sides at least partially overlaps with respective inner portions of the first and second electrodes. The drive coil includes at least five turns.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: October 22, 2024
    Assignee: XYLEM EUROPE GMBH
    Inventors: Andrew Dames, Vincenzo Piazza, Mathew Price, Hilary Meanwell, Michael Cantor, Riccardo Di Pietro
  • Patent number: 12092129
    Abstract: A hydraulic unit of a pump for pumping liquid comprising solid matter, the hydraulic unit comprising a housing and an impeller seat, the housing having an axial inlet opening and an outlet opening, and the impeller seat having an axial inlet defined by an inlet wall. The impeller seat has an inlet radius (R) measured from an axially extending centre axis (A) to a circular intersection between the inlet wall and the upper surface of the impeller seat, and the impeller seat comprises a guide pin connected to and extending radially inwards from the inlet wall. The guide pin has a tip radius (r) measured from an axially extending centre axis (A) to the radially innermost part of the guide pin, and has a guide pin angle (?) defined between a cut water line of a cut water and a radius of the impeller seat.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: September 17, 2024
    Assignee: Xylem Europe GmbH
    Inventors: Viktor Bredwad, Stefan Ramström
  • Patent number: 12092117
    Abstract: A centrifugal pump unit (1) is disclosed having a body (4) that includes a suction connection (5), a pressure connection (6) and a pump chamber (7) connecting the suction and pressure connections. The centrifugal pump unit further includes an impeller (8) disposed in the pump chamber and at least one electromagnetic flow sensor (3) arranged to measure flow in at least a part of the suction connection and/or pressure connection and/or pump chamber for determining a flow rate of a fluid through the centrifugal pump unit or for determining a control signal equivalent of the flow rate for control purposes.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: September 17, 2024
    Assignee: XYLEM EUROPE GMBH
    Inventors: Andrew Dames, Vincenzo Piazza, Mathew Price, Hilary Meanwell, Michael Cantor
  • Patent number: 12078177
    Abstract: A submersible electric machine for transporting a liquid, the machine having a hydraulic unit with an impeller, and a drive unit with a housing defining a motor compartment having an electric motor inside. A drive shaft is connected to the electric motor, and extends from the electric motor to the hydraulic unit to a connection with the impeller. A top unit includes a housing defining an electronics chamber separated from the motor compartment by a dividing structural wall. The electronics chamber has a metal partition, having a natural frequency equal to or more than 500 Hz, connected to the top unit housing. A vibration sensor is directly or indirectly connected to the metal partition and monitors vibrations in at least two dimensions at frequencies ranging up to 500 Hz.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 3, 2024
    Assignee: Xylem Europe GmbH
    Inventors: Staffan Olsson, Måns Bergsten, Gert Hallgren
  • Publication number: 20240271635
    Abstract: A hydraulic unit of a pump for pumping liquid comprising solid matter, the hydraulic unit comprising a housing and an impeller seat, the housing having an axial inlet opening and an outlet opening, and the impeller seat having an axial inlet defined by an inlet wall. The impeller seat has an inlet radius (R) measured from an axially extending centre axis (A) to a circular intersection between the inlet wall and the upper surface of the impeller seat, and the impeller seat comprises a guide pin connected to and extending radially inwards from the inlet wall. The guide pin has a tip radius (r) measured from an axially extending centre axis (A) to the radially innermost part of the guide pin, and has a guide pin angle (u) defined between a cut water line of a cut water and a radius of the impeller seat.
    Type: Application
    Filed: June 7, 2022
    Publication date: August 15, 2024
    Applicant: Xylem Europe GmbH
    Inventors: Viktor Bredwad, Stefan Ramström
  • Publication number: 20240263434
    Abstract: A method for determining a Pump Station Capacity Measure (PSCM) value in relation to a theoretical or actual Precipitation Event in the area of the pump station comprising a tank for temporary storage of a liquid, an inlet for influent liquid, an outlet, and at least one pump configured for transporting the liquid away from the tank via the outlet. The method comprises steps. Determining a Precipitation Inflow character (IN-RAIN) of the pump station representative of the inflow of the influent liquid to the pump station originating from the Precipitation Events in the area of the pump station. Determining a Dry Inflow character (IN-DRY) of the pump station representative of the inflow of the influent liquid to the pump station not originating from the Precipitation Events. Determining a Pump Station Max Capacity (PSMC) that is representative for the maximum output capacity of the pump station.
    Type: Application
    Filed: June 2, 2022
    Publication date: August 8, 2024
    Applicant: Xylem Europe GmbH
    Inventor: Martin Wessman
  • Patent number: 12031554
    Abstract: An open impeller for a submergible pump for pumping abrasive fluids. The impeller has a cover plate, a hub and at least two spirally swept blades, each blade having a leading edge, a trailing edge, and a lower edge extending from the leading edge to the trailing edge and separating the suction and pressure sides of the blade. At least one blade includes a winglet at the lower edge projecting from the suction side, located radially outside an inner radius of the impeller, and extending circumferentially to the trailing edge at the suction side at a maximum radius of the impeller. The lower edge and winglet lower wear surface are configured to be located opposite of and facing a pump wear plate. The inner radius is equal to the largest of the maximum radius of the impeller multiplied by 0.6, and an inlet radius of the impeller multiplied by 1.2.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: July 9, 2024
    Assignee: Xylem Europe GmbH
    Inventor: Jan Wilkström
  • Patent number: 12025153
    Abstract: An impeller seat for a pump, the impeller seat comprising an inlet wall, an inlet radius, and a guide pin connected to and extending radially inwards from the inlet wall. The guide pin includes a tip radius. A 40%-circle is offset radially inwards from a circular intersection forty percent of the difference between the inlet radius and the tip radius. The guide pin comprises a leading edge configured for scraping off pollutants from an impeller of the pump, and, at least between the inlet wall and the 40%-circle, comprises a pre-leading edge located upstream the leading edge of the guide pin, seen in the direction of rotation of the pump and seen in an axial direction.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: July 2, 2024
    Assignee: Xylem Europe GmbH
    Inventor: Viktor Bredwad
  • Patent number: 12025138
    Abstract: A method for detecting the occurrence of snoring during operation of a machine configured for transporting liquid. The machine includes an impeller and an electric motor, operatively connected to a control unit. The method includes operating the machine in order to transport liquid on the condition that the instantaneous power of the machine is directed towards a set power level. The instantaneous power of the machine is allowed to fluctuate within a set power level range defined upwards by a max-factor times the set power level and defined downwards by a min-factor times the set power level. The method further includes determining the machine is snoring by the control unit when the instantaneous power of the machine is below a snoring level equal to a snoring-factor times the set power level by monitoring at least one of the operational parameters of power, current, or power factor of the machine.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: July 2, 2024
    Assignee: Xylem Europe GmbH
    Inventors: Sebastian Själin, Alexander Fullemann
  • Patent number: 12018697
    Abstract: An impeller seat for a pump, the impeller seat comprising an inlet wall, an inlet radius, a guide pin connected to and extending radially inwards from the inlet wall, and a feeding groove arranged in the upper surface of the impeller seat, extending from the inlet wall to the periphery of the impeller seat. The guide pin includes a tip radius. A 15%-circle is offset radially inwards from a circular intersection fifteen percent of the difference between the inlet radius and the tip radius. A groove inlet upstream edge line of the impeller seat intersects an upstream edge of the feeding groove at the circular intersection, seen in the direction of rotation of the pump. A groove inlet upstream edge angle between a radius of the impeller seat intersecting an upstream edge of the guide pin at the 15%-circle, seen in the direction of rotation of the pump.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: June 25, 2024
    Assignee: Xylem Europe GmbH
    Inventor: Viktor Bredwad
  • Patent number: 11994149
    Abstract: An impeller seat for a pump, the impeller seat comprising an inlet wall, an inlet radius, a guide pin connected to and extending radially inwards from the inlet wall. The guide pin includes a tip radius. A 15%-circle is offset radially inwards from a circular intersection fifteen percent of the difference between the inlet radius and the tip radius. An 85%-circle is offset radially inwards from the circular intersection eighty-five percent of the difference between the inlet radius and the tip radius. A trailing edge line is between the intersection between the 15%-circle and a trailing edge of the guide pin and the intersection between the 85%-circle and the trailing edge of the guide pin. The trailing edge line is in a range equal to or more than 10 degrees and equal to or less than 30 degrees.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: May 28, 2024
    Assignee: Xylem Europe GmbH
    Inventors: Viktor Bredwad, Stefan Ramström
  • Publication number: 20240011501
    Abstract: An impeller seat for a pump, the impeller seat comprising an inlet wall, an inlet radius, a guide pin connected to and extending radially inwards from the inlet wall. The guide pin includes a tip radius. A 15%-circle is offset radially inwards from a circular intersection fifteen percent of the difference between the inlet radius and the tip radius. An 85%-circle is offset radially inwards from the circular intersection eighty-five percent of the difference between the inlet radius and the tip radius. A trailing edge line is between the intersection between the 15%-circle and a trailing edge of the guide pin and the intersection between the 85%-circle and the trailing edge of the guide pin. The trailing edge line is in a range equal to or more than 10 degrees and equal to or less than 30 degrees.
    Type: Application
    Filed: October 25, 2021
    Publication date: January 11, 2024
    Applicant: Xylem Europe GmbH
    Inventors: Viktor Bredwad, Stefan Ramström
  • Publication number: 20240003782
    Abstract: A method for monitoring the operation of a pump station comprising a tank for temporary storage of a liquid, an inlet for influent liquid, an outlet, and at least one pump configured for transporting the liquid away from the tank via the outlet. The method comprises steps. Monitoring an inflow of liquid to the tank during at least a part of a predetermined time period (T) and determining Inflow data (IN) representative of the inflow during T. Determining Pump Station Max Capacity data (PSMC) that is representative of the max capacity of pumped liquid from the tank during T. For T, determining a momentary Pump Station Capacity Utilization (PSCUM) based on IN and PSMC, using the overall formula PSCUM (%)=100*IN/PSMC. Determining a typical Pump Station Capacity Utilization (PSCUT) for the pump station based on at least one momentary PSCUM value.
    Type: Application
    Filed: November 24, 2021
    Publication date: January 4, 2024
    Applicant: Xylem Europe GmbH
    Inventors: Martin Wessman, Nils Irestedt, Alexander Fullemann
  • Patent number: 11858810
    Abstract: A device for generating ozone from oxygen-containing gas by silent electric discharge, the device including an electrode arrangement having at least one high-voltage electrode and at least one annular ground electrode. An annular dielectric is arranged between the at least one high-voltage electrode and the at least one ground electrode. The at least one high-voltage electrode is surrounded by at least one annular heat pipe.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: January 2, 2024
    Assignee: Xylem Europe GmbH
    Inventors: Reiner Fietzek, Nicole Brueggemann, Ralf Fiekens, Manfred Salvermoser
  • Publication number: 20230407878
    Abstract: An impeller seat for a pump, the impeller seat comprising an inlet wall, an inlet radius, a guide pin connected to and extending radially inwards from the inlet wall, and a feeding groove arranged in the upper surface of the impeller seat, extending from the inlet wall to the periphery of the impeller seat. The guide pin includes a tip radius. A 15%-circle is offset radially inwards from a circular intersection fifteen percent of the difference between the inlet radius and the tip radius. A groove inlet upstream edge line of the impeller seat intersects an upstream edge of the feeding groove at the circular intersection, seen in the direction of rotation of the pump. A groove inlet upstream edge angle between a radius of the impeller seat intersecting an upstream edge of the guide pin at the 15%-circle, seen in the direction of rotation of the pump.
    Type: Application
    Filed: October 25, 2021
    Publication date: December 21, 2023
    Applicant: Xylem Europe GmbH
    Inventor: Viktor Bredwad
  • Publication number: 20230400026
    Abstract: An open impeller for a submergible pump for pumping abrasive fluids. The impeller has a cover plate, a hub and at least two spirally swept blades, each blade having a leading edge, a trailing edge, and a lower edge extending from the leading edge to the trailing edge and separating the suction and pressure sides of the blade. At least one blade includes a winglet at the lower edge projecting from the suction side, located radially outside an inner radius of the impeller, and extending circumferentially to the trailing edge at the suction side at a maximum radius of the impeller. The lower edge and winglet lower wear surface are configured to be located opposite of and facing a pump wear plate. The inner radius is equal to the largest of the maximum radius of the impeller multiplied by 0.6, and an inlet radius of the impeller multiplied by 1.2.
    Type: Application
    Filed: September 20, 2021
    Publication date: December 14, 2023
    Applicant: Xylem Europe GmbH
    Inventor: Jan Wilkström
  • Publication number: 20230392608
    Abstract: An impeller seat for a pump, the impeller seat comprising an inlet wall, an inlet radius, and a guide pin connected to and extending radially inwards from the inlet wall. The guide pin includes a tip radius. A 40%-circle is offset radially inwards from a circular intersection forty percent of the difference between the inlet radius and the tip radius. The guide pin comprises a leading edge configured for scraping off pollutants from an impeller of the pump, and, at least between the inlet wall and the 40%-circle, comprises a pre-leading edge located upstream the leading edge of the guide pin, seen in the direction of rotation of the pump and seen in an axial direction.
    Type: Application
    Filed: October 25, 2021
    Publication date: December 7, 2023
    Applicant: Xylem Europe GmbH
    Inventor: Viktor Bredwad
  • Patent number: D1071998
    Type: Grant
    Filed: October 9, 2023
    Date of Patent: April 22, 2025
    Assignee: XYLEM EUROPE GmbH
    Inventor: Jan Wikström