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1. 发明授权

US5249424A Active magnetic regenerator method and apparatus 失效
标题翻译：主动式蓄热器方法及装置
公开(公告)号：US5249424A
公开(公告)日：1993-10-05
申请号：US894777
申请日：1992-06-05
申请人： Anthony J. DeGregoria , Carl B. Zimm , Dennis J. Janda , Richard A. Lubasz , Alexander G. Jastrab , Joseph W. Johnson , Evan M. Ludeman
发明人： Anthony J. DeGregoria , Carl B. Zimm , Dennis J. Janda , Richard A. Lubasz , Alexander G. Jastrab , Joseph W. Johnson , Evan M. Ludeman
IPC分类号： F25B21/00 , H01F1/01
CPC分类号： F25B21/00 , F25J1/001 , F25J1/0221 , F25J1/0227 , F25J1/0259 , H01F1/012 , F25B2321/0022 , F25J2210/42 , F25J2270/908 , Y02B30/66
摘要： In an active magnetic regenerator apparatus having a regenerator bed of material exhibiting the magnetocaloric effect, flow of heat transfer fluid through the bed is unbalanced, so that more fluid flows through the bed from the hot side of the bed to the cold side than from the cold side to the hot side. The excess heat transfer fluid is diverted back to the hot side of the bed. The diverted fluid may be passed through a heat exchanger to draw heat from a fluid to be cooled. The apparatus may be operated at cryogenic temperatures, and the heat transfer fluid may be helium gas and the fluid to be cooled may be hydrogen gas, which is liquified by the device. The apparatus can be formed in multiple stages to allow a greater span of cooling temperatures than a single stage, and each stage may be comprised of two bed parts. Where two bed parts are employed in each stage, a portion of the fluid passing from the hot side to the cold side of a first bed part which does not have a magnetic field applied thereto is diverted back to the cold side of the other bed part in the stage, where it is passed through to the hot side. The remainder of the fluid from the cold side of the bed part of the first stage is passed to the hot side of the bed part of the second stage.
摘要翻译：在具有表现出磁热效应的材料的再生器床的主动式蓄热器装置中，通过床的传热流体的流动是不平衡的，使得更多的流体从床的热侧流向冷侧而不是从冷端到热边。多余的传热流体被转移回到床的热侧。转向流体可以通过热交换器以从要冷却的流体中吸取热量。该设备可以在低温下操作，并且传热流体可以是氦气，并且待冷却的流体可以是氢气，其被该装置液化。该装置可以以多个阶段形成，以允许比单个阶段更大的冷却温度跨度，并且每个阶段可以由两个床部分组成。在每个阶段中使用两个床部件的情况下，从没有施加磁场的第一床部分的热侧到冷侧的流体的一部分被转回到另一个床部分的冷侧在舞台上，它通过了热潮。来自第一阶段的床部分的冷侧的流体的其余部分被传递到第二阶段的床部分的热侧。

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