MAGNETIC HEAT PUMP SYSTEM AND AIR CONDITIONING DEVICE USING THE SAME

PROBLEM TO BE SOLVED: To improve efficiency of a reciprocating pump by mounting reciprocating pumps at both sides of a magnetic heat pump system, and transmitting work of one of the reciprocating pumps to the other as motion support of the reciprocating pump.SOLUTION: In a magnetic heat pump system including a material container 25 for allowing a heat transport medium to flow to an incorporated magnetocaloric effect material 26, a magnetic field changing means 22 for changing magnitude of magnetic field applied to the magnetocaloric effect material 26, a heat transport medium moving means 13R for reciprocating the heat transport medium between both end parts of the material container 25, a first heat exchanger 2 exchanging heat to the heat transport medium discharged from one of the end part sides of the material container 25, and a second heat exchanger exchanging heat to the heat transport medium discharged from the other end side of the material container 25, the work done to the heat transport medium by one of the heat transport medium moving means 13R disposed at both end parts of the material container 25, is utilized as driving force of the other heat transport medium moving means 13R by the heat transport medium.