公开(公告)号：US09995512B2

公开(公告)日：2018-06-12

申请号：US15253975

申请日：2016-09-01

Applicant: DENSO CORPORATION

Inventor： Tsuyoshi Morimoto ,  Naoki Watanabe ,  Shinichi Yatsuzuka ,  Katzutoshi Nishizawa

IPC: F25B21/00 ,  B60H1/32 ,  B60H1/00 ,  B60H1/03

CPC classification number: F25B21/00 ,  B60H1/00864 ,  B60H1/00885 ,  B60H1/03 ,  B60H1/32 ,  F25B2321/002 ,  F25B2321/0022 ,  Y02B30/66

Abstract: A magnetic refrigeration system constructed in such a way that a refrigerant transfer part transfers refrigerant from a first refrigerant discharge part of one refrigerant port to a first refrigerant circulation circuit after a magnetic field is applied to a magnetic working material by a magnetic field applying and removing part and that the refrigerant transfer part transfers refrigerant from a second refrigerant discharge part of other refrigerant port to a second refrigerant circulation circuit after the magnetic field is removed from the magnetic working material by the magnetic field applying and removing part.

公开(公告)号：US09322579B2

公开(公告)日：2016-04-26

申请号：US14248648

申请日：2014-04-09

Applicant: DENSO CORPORATION

Inventor： Tsuyoshi Morimoto ,  Naoki Watanabe ,  Shigeo Nomura ,  Takuya Fuse

IPC: F25B21/02 ,  F25B21/00

CPC classification number: F25B21/00 ,  F25B2321/0022 ,  Y02B30/66

Abstract: A magneto-caloric effect type heat pump apparatus provides a thermo-magnetic cycle apparatus. A magnetic field modulating device has a rotary permanent magnet. By rotating the permanent magnet, magnetic field applied to a magneto-caloric element is modulated alternatively in a magnetized state and a demagnetized state. A magnetized period, when the magnetic field is applied, is shorter than a demagnetized period, when the magnetic field is removed. Thereby, it is possible to reduce weight of the magnetic field modulating device having the permanent magnet. The magneto-caloric element has a heat exchange portion which varies heat exchanging efficiency depending on flow directions of a heat transport medium. The heat exchanging efficiency in the magnetized period is higher than the heat exchanging efficiency in the demagnetized period. Therefore, it is possible to provide sufficient heat exchanging quantity even in a short magnetized period.

Abstract translation: 磁热效应式热泵装置提供一种热磁循环装置。 磁场调制装置具有旋转永久磁铁。 通过旋转永磁体，施加到磁热量元件的磁场在磁化状态和退磁状态下交替地调制。 当磁场被施加时，磁化周期比去磁期短，当磁场被去除时。 由此，能够减轻具有永久磁铁的磁场调制装置的重量。 磁热量元件具有根据传热介质的流动方向改变热交换效率的热交换部分。 磁化期间的热交换效率高于退磁期的热交换效率。 因此，即使在短时间内也可以提供足够的热交换量。

公开(公告)号：US10054340B2

公开(公告)日：2018-08-21

申请号：US14508240

申请日：2014-10-07

Applicant: DENSO CORPORATION

Inventor： Naoki Watanabe ,  Tsuyoshi Morimoto ,  Takuya Fuse

IPC: F25B21/00 ,  B60H1/00

CPC classification number: F25B21/00 ,  B60H1/00478 ,  F25B2321/0022 ,  Y02B30/66

Abstract: A magneto-caloric-effect element has a plurality of element units. The element units have lengths, respectively. The element units have different Curie temperatures, respectively. The element units demonstrate magneto-caloric effects. Two adjoining performance distribution crosses at a cross temperature. A temperature in the rated operational status between two adjoining element units is called a boundary temperature. The lengths and/or Curie temperatures are set so that the boundary temperatures and the cross temperatures coincide each other. Thereby, a plurality of element units can function at high effectiveness in the rated operational status.

公开(公告)号：US09885500B2

公开(公告)日：2018-02-06

申请号：US13909305

申请日：2013-06-04

Applicant: DENSO CORPORATION

Inventor： Naoki Watanabe ,  Takuya Fuse ,  Shinichi Yatsuzuka ,  Kazutoshi Nishizawa ,  Tsuyoshi Morimoto

IPC: F25B21/00

CPC classification number: F25B21/00 ,  F25B2321/0022 ,  Y02B30/66

Abstract: A magnetic heat pump system which arranges permanent magnets at the two sides of a magnetocalorific effect material to thereby strengthen the magnetic field to improve the cooling and heating ability, which magnetic heat pump system uses first and second magnets which move inside and outside of the containers in the state facing each other to change a magnitude of a magnetic field which is applied to a plurality of containers in which a magnetocalorific effect material is stored so as to change a temperature of a heat transport medium which is made to flow through the containers by a reciprocating pump, the intensity of the magnetic field which is applied to the magnetocalorific effect material in the containers being increased to enlarge the change of temperature of the heat transport medium which is discharged from the magnetic heat pump and improve the cooling and heating efficiency.

公开(公告)号：US20140311165A1

公开(公告)日：2014-10-23

申请号：US14257296

申请日：2014-04-21

Applicant: DENSO CORPORATION

Inventor： Naoki Watanabe ,  Tsuyoshi Morimoto ,  Shigeo Nomura ,  Takuya Fuse

IPC: F25B21/00

CPC classification number: F25B21/00 ,  B60H1/32 ,  F25B2321/0022 ,  F25B2321/0023 ,  Y02B30/66

Abstract: A vehicle air-conditioner has a magneto-caloric effect type heat pump apparatus (MHP apparatus). MHP apparatus has a magneto-caloric element (MCE element) which generates heat dissipation and heat absorption in response to strength change of an external magnetic field. The MCE element can demonstrate high performance when an element temperature is in a highly efficient temperature zone. A controller has an initial control part which adjusts the element temperature so that the element temperature approaches to the highly efficient temperature zone when the MHP apparatus is in an initial state in which the temperature is out of the highly efficient temperature zone. Thereby, starting of MHP apparatus is promoted. The initial control part may activate an auxiliary apparatus. The auxiliary apparatus heats or cools a part or all of the MCE elements.

Abstract translation: 车用空调具有磁热效应式热泵装置（MHP装置）。 MHP装置具有响应于外部磁场的强度变化而产生散热和热吸收的磁热量元件（MCE元件）。 当元件温度处于高效温度区时，MCE元件可以显示出高性能。 控制器具有初始控制部分，其调节元件温度，使得当MHP装置处于温度超出高效温度区域的初始状态时元件温度接近高效温度区域。 从而促进了MHP装置的启动。 初始控制部分可以激活辅助装置。 辅助装置加热或冷却部分或全部MCE元件。

公开(公告)号：US20140305138A1

公开(公告)日：2014-10-16

申请号：US14248648

申请日：2014-04-09

Applicant: DENSO CORPORATION

Inventor： Tsuyoshi Morimoto ,  Naoki Watanabe ,  Shigeo Nomura ,  Takuya Fuse

IPC: F25B21/00

CPC classification number: F25B21/00 ,  F25B2321/0022 ,  Y02B30/66

Abstract: A magneto-caloric effect type heat pump apparatus provides a thermo-magnetic cycle apparatus. A magnetic field modulating device has a rotary permanent magnet. By rotating the permanent magnet, magnetic field applied to a magneto-caloric element is modulated alternatively in a magnetized state and a demagnetized state. A magnetized period, when the magnetic field is applied, is shorter than a demagnetized period, when the magnetic field is removed. Thereby, it is possible to reduce weight of the magnetic field modulating device having the permanent magnet. The magneto-caloric element has a heat exchange portion which varies heat exchanging efficiency depending on flow directions of a heat transport medium. The heat exchanging efficiency in the magnetized period is higher than the heat exchanging efficiency in the demagnetized period. Therefore, it is possible to provide sufficient heat exchanging quantity even in a short magnetized period.

Abstract translation: 磁热效应式热泵装置提供一种热磁循环装置。 磁场调制装置具有旋转永久磁铁。 通过旋转永磁体，施加到磁热量元件的磁场在磁化状态和退磁状态下交替地调制。 当磁场被施加时，磁化周期比去磁期短，当磁场被去除时。 由此，能够减轻具有永久磁铁的磁场调制装置的重量。 磁热量元件具有根据传热介质的流动方向改变热交换效率的热交换部分。 磁化期间的热交换效率高于退磁期的热交换效率。 因此，即使在短时间内也可以提供足够的热交换量。

公开(公告)号：US10295228B2

公开(公告)日：2019-05-21

申请号：US15251018

申请日：2016-08-30

Applicant: DENSO CORPORATION

Inventor： Naoki Watanabe ,  Shigeo Nomura ,  Akito Torii ,  Tsuyoshi Morimoto ,  Takayuki Sugiura ,  Tomoyuki Nomura ,  Yasunori Niiyama

IPC: F25B21/00

Abstract: A controller is configured to, based on a characteristic information of thermal output with respect to a temperature difference between a hot end and a cold end of a working chamber, changes at least one of a flow rate of a heating target fluid in a high temperature heat exchanger and a flow rate of a cooling target fluid in a low temperature heat exchanger. At least one of the flow rate of the heating target fluid in the high temperature heat exchanger and the flow rate of the cooling target fluid in the low temperature heat exchanger is adjusted such that the temperature difference between the hot and cold ends changes in a direction that increases thermal output.

公开(公告)号：US20130327062A1

公开(公告)日：2013-12-12

申请号：US13909305

申请日：2013-06-04

Applicant: DENSO CORPORATION

Inventor： Naoki Watanabe ,  Takuya Fuse ,  Shinichi Yatsuzuka ,  Kazutoshi Nishizawa ,  Tsuyoshi Morimoto

IPC: F25B21/00

CPC classification number: F25B21/00 ,  F25B2321/0022 ,  Y02B30/66

Abstract: A magnetic heat pump system which arranges permanent magnets at the two sides of a magnetocalorific effect material to thereby strengthen the magnetic field to improve the cooling and heating ability, which magnetic heat pump system uses first and second magnets which move inside and outside of the containers in the state facing each other to change a magnitude of a magnetic field which is applied to a plurality of containers in which a magnetocalorific effect material is stored so as to change a temperature of a heat transport medium which is made to flow through the containers by a reciprocating pump, the intensity of the magnetic field which is applied to the magnetocalorific effect material in the containers being increased to enlarge the change of temperature of the heat transport medium which is discharged from the magnetic heat pump and improve the cooling and heating efficiency.

Abstract translation: 一种磁热泵系统，其在磁热效应材料的两侧布置永磁体，从而加强磁场以提高冷却和加热能力，该磁热泵系统使用在容器内部和外部移动的第一和第二磁体 在彼此相对的状态下，改变施加到多个容器的磁场的大小，其中存储有磁热效应材料，以便改变通过容器流过的传热介质的温度 往复泵中，施加到容器中的磁热效应材料的磁场强度增加，从而扩大从磁热泵排出的传热介质的温度变化，提高冷却和加热效率。