Linearly-actuated magnetocaloric heat pump

A heat pump system, comprising:

• a cold side heat exchanger configured for heat removal from a first local environment;
• a hot side heat exchanger configured for heat delivery to a second local environment;
• a first pump for circulating a working fluid between the cold side heat exchanger and the hot side heat exchanger;
• a second pump for circulating a working fluid between the cold side heat exchanger and the hot side heat exchanger;
• and
• a heat pump in fluid communication with the cold side heat exchanger, the hot side heat exchanger, the first pump and the second pump, the heat pump comprising:
• a magnet assembly, the magnet assembly creating a magnetic field;
• a regenerator housing, the regenerator housing comprising a body defining a plurality of chambers, each of the plurality of chambers extending along a transverse direction orthogonal to the vertical direction;
• a plurality of stages, each of the plurality of stages comprising a magnetocaloric material disposed within one of the plurality of chambers and extending along the transverse direction between a first end and a second end;
• and
• a plurality of lines in fluid communication with each of the plurality of stages, each of the plurality of lines comprising an inner sleeve and an outer sleeve, the inner sleeve at least partially disposed within the outer sleeve,
• wherein one of the regenerator housing or the magnet assembly is movable relative to the other of the regenerator housing or the magnet assembly along a longitudinal direction orthogonal to the vertical direction and the transverse direction, and
• wherein one of the inner sleeve or the outer sleeve of each of the plurality of lines is movable relative to the other of the inner sleeve or the outer sleeve of that line during movement of the one of the regenerator housing or the magnet assembly