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1. 发明申请

US20220410263A1 METHOD OF MANUFACTURING AN OBJECT BY JOINING TWO POWDER METALLURGICAL COMPONENTS 有权
公开(公告)号：US20220410263A1
公开(公告)日：2022-12-29
申请号：US17781636
申请日：2020-12-03
申请人： Grundfos Holding A/S
发明人： Alexandro Sorea , Peter Valler , Allan Ivo Søegaard , Henrik Rasmussen , Flemming Buus Bendixen
IPC分类号： B22F7/06 , B33Y10/00 , B22F10/10
摘要： 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.

2. 发明申请

US20220418049A1 A HEATING SYSTEM AND METHOD OF MANUFACTURING A HEATING SYSTEM 有权
公开(公告)号：US20220418049A1
公开(公告)日：2022-12-29
申请号：US17781648
申请日：2020-12-03
申请人： Grundfos Holding A/S
发明人： Flemming Buus Bendixen , Alexandro Sorea , Peter Valler , Henrik Rasmussen , Allan Ivo Søegaard
IPC分类号： H05B3/82 , H05B3/12 , F24H1/10 , F24H3/00 , B22F3/20 , B22F3/10 , B22F7/06
摘要： 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.

3. 发明授权

US10826372B2 Magnet gear 有权
公开(公告)号：US10826372B2
公开(公告)日：2020-11-03
申请号：US16306714
申请日：2017-04-07
申请人： GRUNDFOS HOLDING A/S
发明人： Allan Ivo Søegaard , Flemming Buus Bendixen , Alexandru Sorea , Henrik Rassmusen
IPC分类号： H02K51/00 , H02K1/24 , H02K1/27 , H02K16/02
摘要： The magnetic gear includes a magnetic force generator (8), a driving shaft (1), a driven shaft (2) and a gear carrier (3) which are magnetically coupled in movement to one another. Only one magnetic force generator (8) is provided, which one magnetic force generator (8) has a north-south alignment that runs in the axis direction (111) of a shaft (1, 2) or parallel to this.

4. 发明授权

US10432078B2 Magnetic gear with a magnetic flux conductor arrangement 有权
公开(公告)号：US10432078B2
公开(公告)日：2019-10-01
申请号：US15321611
申请日：2015-06-15
申请人： Grundfos Holding A/S
发明人： Flemming Buus Bendixen , Frank Gravers Pedersen , Peter Valler , Henrik Rasmussen , Allan Ivo Søegaard
IPC分类号： H02K49/10 , F04D13/02 , F04D13/06 , F04D25/02 , F04D25/06 , F04D29/22 , F04D29/28
摘要： 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.

5. 发明申请

US20180320691A1 HIGH TEMPERATURE PUMP UNIT WITH MAGNETIC COUPLING 审中-公开
公开(公告)号：US20180320691A1
公开(公告)日：2018-11-08
申请号：US15776130
申请日：2016-11-16
申请人： Grundfos Holding A/S
发明人： Flemming Buus Bendixen , Alan Ivo Sogaard Sorensen
IPC分类号： F04D13/02 , F04D7/06 , F04D13/06 , H02K49/10
CPC分类号： F04D13/027 , F04D7/06 , F04D13/06 , H02K49/106 , H02K2201/06
摘要： The present invention relates to a pump unit (300), with at least one impeller, comprising a coupling, wherein the coupling is mechanically connected to the at least one impeller via an inner rotor and where an outer rotor is connected to an electrical machine arranged to produce a rotational torque, said pump being arranged to circulate a hot fluid by the impeller. The coupling includes an outer rotor including a plurality of permanent magnets (101,201) arranged to form a plurality of magnetic poles (105, 205), and an inner rotor (110, 210), whereby the outer rotor and the inner rotor are located coaxially to one another around an axis (130, 230) and spaced apart from one another by an air gap (150,250). A rotor can (330) is arranged in the air gap (250, 150) between the inner rotor and the outer rotor, so as to make a dividing section between the inner and outer rotor. Each of the plurality of magnetic poles comprises at least a section with a radial magnetic direction in respect of the axis (130, 230) and at least a section with a magnetic direction angled between a radial direction and a tangential direction in respect of the axis (130, 230), wherein the combined length of the sides of the plurality of permanent magnets cover less than 75% of the circumference of the cylindrical structure. The outer rotor has a cylindrical structure (120, 220) surrounding the plurality of magnetic poles (105, 205), and the cylindrical structure is made of a magnetic susceptible material for conducting a magnetic flux between the plurality of magnetic poles (105, 205) The inner rotor (110, 210) is made of a magnetic susceptible material and free from permanent magnetic material, wherein the inner rotor is formed with multiple radial projections (111, 211) acting as salient inner rotor poles distributed around the axis (130, 230) of the inner rotor. The invention also relates to a coupling with the above mentioned coupling features.

6. 发明申请

US20220410261A1 A METHOD OF MANUFACTURING A COMPOSITE COMPONENT WITH VARYING ELECTRIC RESISTIVITY ALONG A LONGITUDINAL DIRECTION 有权
公开(公告)号：US20220410261A1
公开(公告)日：2022-12-29
申请号：US17781640
申请日：2020-12-03
申请人： Grundfos Holding A/S
发明人： Flemming Buus Bendixen , Peter Valler , Alexandro Sorea , Henrik Rasmussen
IPC分类号： B22F3/20 , B28B3/20 , B22F3/22 , B22F7/06
摘要： 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.

7. 发明授权

US11159081B2 Magnetic rack-and-pinion coupling system and sea wave energy conversion system 有权
公开(公告)号：US11159081B2
公开(公告)日：2021-10-26
申请号：US17255069
申请日：2019-06-28
申请人： GRUNDFOS HOLDING A/S
发明人： Flemming Buus Bendixen , Alexandru Sorea , Tanja Johnsen
IPC分类号： H02K49/10 , H02K7/18 , F03B13/18
摘要： The present disclosure refers to a magnetic rack-and-pinion coupling system (1) for contactless transfer of kinetic energy comprising: a rack component (3) comprising a first pattern of ferromagnetic structure being repetitive along a rack length axis (L), and a pinion stack component (5) being rotatable about a rotor axis (R), wherein the rack component (3) and/or the pinion stack component (5) are movable relative to each other along the rack length axis (L), and wherein the pinion stack component (5) comprises a stack of pinion discs (9a,b,c,d) each comprising a second pattern of ferromagnetic structure being repetitive along a circumference of the respective pinion disc (9a,b,c,d), wherein at least one magnetic field producing element (13a,b,c) is sandwiched between neighbouring pinion discs (9a,b,c,d), wherein each magnetic field producing element (13a,b,c) has one magnetic pole (N, S) at an axial front side (14) of the magnetic field producing element (13a,b,c) and the other magnetic pole (S, N) at an axial end side (16) of the magnetic field producing element (13a,b,c).

8. 发明授权

US10816002B2 High temperature pump unit with magnetic coupling 有权
公开(公告)号：US10816002B2
公开(公告)日：2020-10-27
申请号：US15776130
申请日：2016-11-16
申请人： Grundfos Holding A/S
发明人： Flemming Buus Bendixen , Alan Ivo Sogaard Sorensen
IPC分类号： F04D13/02 , F04D7/06 , F04D13/06 , H02K49/10
摘要： The present invention relates to a pump unit (300), with at least one impeller, comprising a coupling, wherein the coupling is mechanically connected to the at least one impeller via an inner rotor and where an outer rotor is connected to an electrical machine arranged to produce a rotational torque, said pump being arranged to circulate a hot fluid by the impeller. The coupling includes an outer rotor including a plurality of permanent magnets (101,201) arranged to form a plurality of magnetic poles (105, 205), and an inner rotor (110, 210), whereby the outer rotor and the inner rotor are located coaxially to one another around an axis (130, 230) and spaced apart from one another by an air gap (150,250). A rotor can (330) is arranged in the air gap (250, 150) between the inner rotor and the outer rotor, so as to make a dividing section between the inner and outer rotor. Each of the plurality of magnetic poles comprises at least a section with a radial magnetic direction in respect of the axis (130, 230) and at least a section with a magnetic direction angled between a radial direction and a tangential direction in respect of the axis (130, 230), wherein the combined length of the sides of the plurality of permanent magnets cover less than 75% of the circumference of the cylindrical structure. The outer rotor has a cylindrical structure (120, 220) surrounding the plurality of magnetic poles (105, 205), and the cylindrical structure is made of a magnetic susceptible material for conducting a magnetic flux between the plurality of magnetic poles (105, 205) The inner rotor (110, 210) is made of a magnetic susceptible material and free from permanent magnetic material, wherein the inner rotor is formed with multiple radial projections (111, 211) acting as salient inner rotor poles distributed around the axis (130, 230) of the inner rotor. The invention also relates to a coupling with the above mentioned coupling features.

9. 发明授权

US10411571B2 Magnetic coupling 有权
公开(公告)号：US10411571B2
公开(公告)日：2019-09-10
申请号：US15321453
申请日：2015-05-27
申请人： GRUNDFOS HOLDING A/S
发明人： Flemming Buus Bendixen , Peter Kjeldsteen , Allan Ivo Søgaard
IPC分类号： H02K1/02 , H02K7/16 , F04D13/02 , H01F13/00 , H02K15/03 , H02K16/00 , H02K49/10 , H01F41/02
摘要： A magnetic coupling includes an inner rotor (11) and an outer rotor (9) which at least partly surrounds the inner rotor (11). These rotors (11, 9) each are formed of magnetic material (18) and are coupled to one another by way of magnetic forces. The inner rotor (11) and/or the outer rotor (9) contain powdery, magnetizable material (18). The powdery, magnetizable material (18) is magnetized at a side lying opposite the other rotor at several locations distributed over the periphery.

10. 发明申请

US20170201167A1 A MAGNETIC GEAR 审中-公开
公开(公告)号：US20170201167A1
公开(公告)日：2017-07-13
申请号：US15321611
申请日：2015-06-15
申请人： Grundfos Holding A/S
发明人： Flemming Buus Bendixen , Frank Gravers Pedersen , Peter Valler , Henrik Rasmussen , Allan Ivo Søegaard
IPC分类号： H02K49/10 , F04D25/02 , F04D25/06 , F04D13/06 , F04D13/02
CPC分类号： H02K49/102 , F04D13/027 , F04D13/06 , F04D25/026 , F04D25/06 , F04D29/22 , F04D29/28 , H02K49/108
摘要： 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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