Magnetic Refrigeration System With Single Direction Coolant Devices And Vehicle Air Conditioning Device Applications

Patent metadata

Field	Value
Publication number	US-2016370037-A1
Application number	US-201615253975-A
Country	US
Kind code	A1
Filing date	Sep 1, 2016
Priority date	Jan 27, 2011
Publication date	Dec 22, 2016
Grant date	—

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.

First claim

What is claimed is:

1 . A magnetic refrigeration system comprising:
a cylindrical container having a plurality of working chambers formed therein radially in a circumferential direction, the plurality of working chambers having a magnetic working material having a magnetocaloric effect arranged therein and having refrigerant flowing therethrough, the cylindrical container having one refrigerant port and another refrigerant port respectively on end faces in a longitudinal direction; a magnetic field applying and removing part which repeats applying and removing a magnetic field to and from the magnetic working material; a first refrigerant circulation circuit constructed in such a way that the refrigerant flowing out of a first refrigerant discharge part of the one refrigerant port flows through a first heat exchanger and returns to a first refrigerant suction part of the one refrigerant port; a second refrigerant circulation circuit constructed in such a way that the refrigerant flowing out of a second refrigerant discharge part of the another refrigerant port flows through a second heat exchanger and returns to a second refrigerant suction part of the another refrigerant port; a refrigerant transfer part which transfers the refrigerant between the first refrigerant discharge part and the first refrigerant suction part of the one refrigerant port and between the second refrigerant discharge part and the second refrigerant suction part of the another refrigerant port; a suction valve provided to each of the first refrigerant suction part and the second refrigerant suction part and opened when the refrigerant is sucked into the working chambers; and a discharge valve provided to each of the first refrigerant discharge part and the second refrigerant discharge part and opened when the refrigerant is discharged from the working chambers, wherein after the magnetic field is applied to the magnetic working material by the magnetic field applying and removing part, the refrigerant transfer part transfers the refrigerant from the another refrigerant port to the one refrigerant port, after the magnetic field is removed from the magnetic working material by the magnetic field applying and removing part, the refrigerant transfer part transfers the refrigerant from the one refrigerant port to the another refrigerant port, and the discharge valve is arranged at a position nearer to the working chambers than the suction valve is in the longitudinal direction of the container.

2 . The magnetic refrigeration system according to claim 1 , wherein
of the suction valve and the discharge valve, at least the suction valve is constructed of a rotary valve having a valve plate and a rotary disk, the valve plate being arranged adjacently to the working chambers and having a communication hole communicating with interior of the working chambers, the rotary disk rotating in a circumferential direction of the container to thereby open or close the communication hole.

3 . The magnetic refrigeration system according to claim 2 , wherein the rotary valve is constructed in such a way that the rotary disk rotates by power for driving the magnetic field applying and removing part.

4 . The magnetic refrigeration system according to claim 1 , wherein
each of the first refrigerant suction part and the second refrigerant suction part is one of a plurality of refrigerant suction parts disposed in correspondence to the plurality of working chambers, each of the first refrigerant discharge part and the second refrigerant discharge part is one of a plurality of refrigerant discharge parts disposed in correspondence to the plurality of working chambers, the plurality of refrigerant suction parts are positioned on a same circumference when viewed from the longitudinal direction of the container, and the plurality of refrigerant discharge parts are positioned on a same circumference when viewed from the longitudinal direction of the container.

Assignees

• Denso Corp

Inventors

• Morimoto Tsuyoshi
• Watanabe Naoki
• Yatsuzuka Shinichi
• Nishizawa Katzutoshi

Classifications

• B60H1/32

  Cooling devices {(B60H1/00478, B60H1/005 take precedence)} · CPC title

• B60H1/00885

  Controlling the flow of heating or cooling liquid, e.g. valves or pumps (B60H1/00899 takes precedence; constructions of valves B60H1/00485) · CPC title

• F25B21/00 Primary

  Machines, plants or systems, using electric or magnetic effects · CPC title

• F25B2321/0022

  with a rotating or otherwise moving magnet · CPC title

• B60H1/00864

  Ventilators and damper doors · CPC title