公开(公告)号：US20190198206A1

公开(公告)日：2019-06-27

申请号：US16328912

申请日：2017-08-31

Applicant: BASF SE

Inventor： Johan TER MAAT ,  Sumohan MISRA ,  David VAN ASTEN ,  Bernard REESINK ,  Wilfried HERMES ,  Michael ZEILINGER ,  Fabian SEELER ,  Kerstin SCHIERLE-ARNDT ,  Ekkehard BRUECK ,  Van Thang NGUYEN

IPC: H01F1/01 ,  C22C30/00 ,  F25B21/00

CPC classification number: H01F1/015 ,  C22C30/00 ,  C22C2202/02 ,  F25B21/00 ,  F25B2321/002 ,  H01F41/00 ,  Y02B30/66

Abstract: Described are a kit comprising at least two magnetocaloric materials having identical stoichiometry but different Curie temperature, a magnetocaloric regenerator comprising at least two magnetocaloric materials having identical stoichiometry but different Curie temperature and a process for producing at least two magnetocaloric materials having identical stoichiometry but different Curie temperature.

公开(公告)号：US20170372821A1

公开(公告)日：2017-12-28

申请号：US15536036

申请日：2015-12-07

Applicant: BASF SE

Inventor： Florian SCHARF ,  Markus SCHWIND ,  David VAN ASTEN ,  Steven Alan JACOBS

IPC: H01F1/01 ,  F25B21/00

CPC classification number: H01F1/012 ,  C08K5/0016 ,  C08K5/06 ,  C08K5/095 ,  C08K5/101 ,  C08K5/151 ,  C09D133/12 ,  C09D139/08 ,  F25B21/00 ,  F25B2321/002 ,  G02F1/13363 ,  C08L33/12 ,  C08L39/08

Abstract: A magnetocaloric cascade contains a sequence of magnetocaloric material layers having different Curie temperatures TC, wherein the magnetocaloric material layers include a cold-side outer layer, a hot-side outer layer and at least three inner layers between the cold-side outer layer and the hot-side outer layer.

公开(公告)号：US20180180330A1

公开(公告)日：2018-06-28

申请号：US15736155

申请日：2016-06-08

Applicant: BASF SE

Inventor： Florian SCHARF ,  Lian ZHANG ,  Bernard Hendrik Reesink ,  David VAN ASTEN

IPC: F25B21/00

CPC classification number: F25B21/00 ,  F25B2321/002 ,  F25B2321/0021 ,  H01F1/012 ,  Y02B30/66

Abstract: The invention relates to a magnetocaloric lattice element formed by fibres of magnetocaloric material, wherein the fibres are arranged in respective parallel lattice planes, each fibre having a respective mass of magnetocaloric material, the fibres of a given lattice plane do not contact each other but each fibre of a given lattice plane is attached to at least two fibres in a next neighbouring lattice plane, and wherein the magnetocaloric lattice element exhibits exactly one predominant mass-weighted direction of longitudinal fibre extension. When arranged in alignment of its predominant mass-weighted direction of longitudinal fibre extension with an external magnetic field, the magnetocaloric lattice element achieves an advantageous, particularly high magnetization of the magnetocaloric material, and as a consequence improves the performance of the magnetocaloric cooling device.

公开(公告)号：US20180005735A1

公开(公告)日：2018-01-04

申请号：US15535621

申请日：2015-12-07

Applicant: BASF SE

Inventor： Florian SCHARF ,  Markus SCHWIND ,  David VAN ASTEN ,  Steven Alan JACOBS

IPC: H01F1/01 ,  F25B21/00

CPC classification number: H01F1/012 ,  F25B21/00

Abstract: A magnetocaloric cascade contains a sequence of magnetocaloric material layers having different Curie temperatures TC, wherein the magnetocaloric material layers include a cold-side outer layer, a hot-side outer layer and at least three inner layers between the cold-side outer layer and the hot-side outer layer, and each pair of next neighboring magnetocaloric layers of the magnetocaloric cascade has a respective Curie-temperature difference amount ΔTC between their respective Curie temperatures, wherein the hot-side outer layer or the cold-side outer layer or both the hot-side and cold-side outer layer exhibits a larger ratio mΔSmax/ΔTC in comparison with any of the inner layers, m denoting the mass of the respective magnetocaloric material layer and ΔSmax denoting a maximum amount of isothermal magnetic entropy change achievable in a magnetic phase transition of the respective magnetocaloric material layer.