THERMOMAGNETIC CYCLE DEVICE

• Main Authors: TORII AKITO, WATANABE NAOKI, NOMURA SHIGEO, MORIMOTO GO, SUGIURA TAKAYUKI, AKITA KENJI, KUROYANAGI MASATOSHI, FUSE TAKUYA
• Format: Patent
• Language: English; Japanese
• Published: 07.01.2016
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

PROBLEM TO BE SOLVED: To provide a thermomagnetic cycle device which can exhibit a high capacity even if having a traverse flow passage which extends between a rotating portion and a stop portion.SOLUTION: A vehicle air conditioner 1 has an MHP device 2 as a thermomagnetic cycle device. A rotor 7 driven by a rotating shaft 2a defines and forms a working chamber 11. A magneto-caloric element 12 is arranged in the working chamber 11. A magnetic field modulation device 14 imparts a magnetic field to the magneto-caloric element 12 by a permanent magnet 13. A flow passage changeover mechanism 18 switches a connection state between a flow passage of a heat transport medium including a pump 17 and the working chamber 11 so as to make the heat transport medium reciprocally flow to the magneto-caloric element 12. The pump 17 makes the heat transport medium flow in one direction. A piston 41 functions as a movable seal mechanism, and suppresses friction and the leakage of a fluid. The fluid which leaks out of the movable seal mechanism is inhaled to the pump 17. Materials which are low in friction coefficients are used for a member of the rotor 7 and a member for slide-moving with the rotor 7. 【課題】回転部分と停止部分との間にわたって延びる横断流路を備えていても高い能力を発揮することができる熱磁気サイクル装置の提供。【解決手段】車両用空調装置１は、熱磁気サイクル装置としてのＭＨＰ装置２を有する。回転軸２ａによって駆動されるロータ７は、作業室１１を区画形成している。作業室１１には磁気熱量素子１２が配置されている。磁場変調装置１４は、永久磁石１３によって磁気熱量素子１２に磁場を与える。流路切換機構１８は、磁気熱量素子１２に対して熱輸送媒体を往復的に流すように、ポンプ１７を含む熱輸送媒体の流れ経路と作業室１１との接続状態を切換える。ポンプ１７は、熱輸送媒体を一方向に流す。ピストン４１は、可動シール機構を提供し、摩擦の抑制と流体の漏洩の抑制とを実現する。可動シール機構から漏れた流体はポンプ１７に吸入される。ロータ７およびロータ７と摺動する部材には、低摩擦係数の材料が用いられている。【選択図】図５