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公开(公告)号：US20220410263A1
公开(公告)日：2022-12-29
申请号：US17781636
申请日：2020-12-03
Applicant: Grundfos Holding A/S
Inventor： Alexandro Sorea , Peter Valler , Allan Ivo Søegaard , Henrik Rasmussen , Flemming Buus Bendixen
Abstract: The invention relates to a method of manufacturing an object (24) by joining a first component (25) and a second component (26). The first component comprises metal powder with a first alloy composition and a first soluble binder, and the second component comprises metal powder with a second alloy composition and a second soluble binder. They may further comprise ceramic powder. At least one of the surfaces to be joined is dissolved before they are brought in contact, or a mixture of metal powder with a third alloy composition and a dissolved third binder is arranged there between. The chemical differences between the first, second, and third alloy compositions are within predetermined limits. The components are sintered or oxidized together whereby it is possible to obtain an object wherein the transitions between the material phases from the joined components are close to inconspicuous when analysed with scanning electron microscopy.
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公开(公告)号：US20220418049A1
公开(公告)日：2022-12-29
申请号：US17781648
申请日：2020-12-03
Applicant: Grundfos Holding A/S
Inventor： Flemming Buus Bendixen , Alexandro Sorea , Peter Valler , Henrik Rasmussen , Allan Ivo Søegaard
Abstract: The invention relates to a heating system (200) for heating of a fluid. The heating system comprises a supply connection (201) in fluid communication with a supply of fluid to be heated. It further comprises a structured body (108) arranged for heating of the fluid during use of the heating system. The structured body comprises a macroscopic structure (21) of electrically conductive material, the macroscopic structure comprising at least one channel (22) through which the fluid can flow. The heating system further comprises at least two conductors (103,114) configured to electrically connect the structured body to at least one electrical power supply. The at least two conductors are electrically connected to the structured body at a first end (204) and at a second end (205), respectively, of a conductive path within the structured body. The structured body is configured to direct an electrical current to run along the conductive path from the first end to the second end thereof. The electrical power supply is configured to heat at least part of said structured body to a temperature of below 400° C. by passing an electrical current through said structured body during use of the heating system.
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公开(公告)号：US20220410258A1
公开(公告)日：2022-12-29
申请号：US17781645
申请日：2020-12-03
Applicant: Grundfos Holding A/S
Inventor： Alexandro Sorea , Peter Valler , Henrik Rasmussen
Abstract: The invention relates to a method of manufacturing a component (21) from metal-containing powder. A paste is prepared by mixing at least a powder (11) comprising metal, a binder (12) in an amount of 2 to 8 weight % of the paste (10), and liquid (13), such as water, in an amount of 5 to 25 weight % of the paste (10). The paste is transferred to an extruder (31), and the paste is extruded into a green body (20) by using an extrusion pressure (P) of more than 50 bar. Then the green body (20) is dried and sintered or oxidized to obtain the final component.
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公开(公告)号：US10432078B2
公开(公告)日：2019-10-01
申请号：US15321611
申请日：2015-06-15
Applicant: Grundfos Holding A/S
Inventor： Flemming Buus Bendixen , Frank Gravers Pedersen , Peter Valler , Henrik Rasmussen , Allan Ivo Søegaard
Abstract: The present invention relates to a magnetic gear comprising a first magnetic rotor with a first shaft; and a second magnetic rotor with a second shaft; a support structure, with a first end shield and a second end shield connected by a stat or support element. A first bearing attached to the first end shield supports the first shaft and a second bearing supports the second shaft. The first and second magnetic rotors are displaced in axial direction from each other in an axial gap; and the first shaft and shaft are approximately aligned in opposite axial directions; and a plurality of magnetic flux conductors encircles the first and second magnetic rotors, thereby conducting magnetic flux from the first magnetic rotor to the second magnetic rotor. The magnetic gear comprises a dividing wall arranged in the axial gap between the first magnetic rotor and the magnetic second rotor, to separate a first chamber from a second chamber.
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Patent Agency Ranking
公开(公告)号：US12002619B2
公开(公告)日：2024-06-04
申请号：US17763874
申请日：2020-09-25
Applicant: GRUNDFOS HOLDING A/S
CPC classification number: H01F7/0278 , H01F13/003
Abstract: A magnetizer including a housing, a passage arranged inside the housing, and a permanent magnet assembly arranged outside the passage to provide a magnetic field passing through the passage. The housing defines an inlet to the passage and an outlet from the passage such that an object to be magnetised can be inserted into the passage via the inlet in the housing and removed via the outlet in the housing. The passage includes a uniform portion where opposing surfaces of the permanent magnet assembly are arranged a uniform distance apart along the length of the uniform portion and a diverging portion arranged between one end of the uniform portion of the passage and the outlet of the housing.
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公开(公告)号：US12186810B2
公开(公告)日：2025-01-07
申请号：US17781636
申请日：2020-12-03
Applicant: Grundfos Holding A/S
Inventor： Alexandro Sorea , Peter Valler , Allan Ivo Søegaard , Henrik Rasmussen , Flemming Buus Bendixen
Abstract: A method of manufacturing an object by joining a first component and a second component. The first component comprises metal powder with a first alloy composition and a first soluble binder, and the second component comprises metal powder with a second alloy composition and a second soluble binder. They may further comprise ceramic powder. At least one of the surfaces to be joined is dissolved before they are brought in contact, or a mixture of metal powder with a third alloy composition and a dissolved third binder is arranged there between. The chemical differences between the first, second, and third alloy compositions are within predetermined limits. The components are sintered or oxidized together whereby it is possible to obtain an object wherein the transitions between the material phases from the joined components are close to inconspicuous when analysed with scanning electron microscopy.
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公开(公告)号：US20220410261A1
公开(公告)日：2022-12-29
申请号：US17781640
申请日：2020-12-03
Applicant: Grundfos Holding A/S
Inventor： Flemming Buus Bendixen , Peter Valler , Alexandro Sorea , Henrik Rasmussen
Abstract: The invention relates to a method of manufacturing a composite component (21) having a varying electric resistivity along a longitudinal direction of the component. At least a first paste (10a) having a first composition, and at least a second paste (10b) having a second composition are prepared. The pastes are transferred into a supply chamber (35) of a processing equipment (31), such as an extruder. A green body (20) is shaped by forcing the pastes from the supply chamber through a die (32), and the green body is then sintered or oxidized to form the composite component. The pastes may comprise metal powder, ceramic powder, and binder. The varying electric resistivity may be due to variations in one or more of the following parameters: the volume ratio between the metal powder and the ceramic powder, the size of the ceramic particles, and the type of the ceramic material.
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公开(公告)号：US20220336135A1
公开(公告)日：2022-10-20
申请号：US17763874
申请日：2020-09-25
Applicant: GRUNDFOS HOLDING A/S
Abstract: A magnetizer including a housing, a passage arranged inside the housing, and a permanent magnet assembly arranged outside the passage to provide a magnetic field passing through the passage. The housing defines an inlet to the passage and an outlet from the passage such that an object to be magnetised can be inserted into the passage via the inlet in the housing and removed via the outlet in the housing. The passage includes a uniform portion where opposing surfaces of the permanent magnet assembly are arranged a uniform distance apart along the length of the uniform portion and a diverging portion arranged between one end of the uniform portion of the passage and the outlet of the housing.
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公开(公告)号：US20170201167A1
公开(公告)日：2017-07-13
申请号：US15321611
申请日：2015-06-15
Applicant: Grundfos Holding A/S
Inventor： Flemming Buus Bendixen , Frank Gravers Pedersen , Peter Valler , Henrik Rasmussen , Allan Ivo Søegaard
CPC classification number: H02K49/102 , F04D13/027 , F04D13/06 , F04D25/026 , F04D25/06 , F04D29/22 , F04D29/28 , H02K49/108
Abstract: The present invention relates to a magnetic gear comprising a first magnetic rotor with a first shaft; and a second magnetic rotor with a second shaft; a support structure, with a first end shield and a second end shield connected by a stat or support element. A first bearing attached to the first end shield supports the first shaft and a second bearing supports the second shaft. The first and second magnetic rotors are displaced in axial direction from each other in an axial gap; and the first shaft and shaft are approximately aligned in opposite axial directions; and a plurality of magnetic flux conductors encircles the first and second magnetic rotors, thereby conducting magnetic flux from the first magnetic rotor to the second magnetic rotor. The magnetic gear comprises a dividing wall arranged in the axial gap between the first magnetic rotor and the magnetic second rotor, to separate a first chamber from a second chamber.
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