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US 2018/0023852 A1Published application
Caloric heat pump system
AssigneeHaier US Appliance Solutions, Inc.
InventorsMichael Goodman Schroeder, David G. Beers, Brian Michael Schork, Michael Alexander Benedict
Life of this patent
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Abstract
A caloric heat pump system includes a pump is operable to circulate a working fluid through a stage. The pump includes a motor. A cam is coupled to the motor such that the cam is rotatable by the motor. The cam has a non-circular outer profile surface. Each piston of a pair of pistons has a cam follower positioned on the non-circular outer profile surface of the cam.
Claims19
A caloric heat pump system, comprising:
- a regenerator housing defining a chamber;
- a stage comprising a caloric material disposed within the chamber;
- a pump operable to circulate a working fluid through the stage, the pump comprising
- a motor;
- a cam coupled to the motor such that the cam is rotatable by the motor, the cam having a non-circular outer profile surface;
- and
- a pair of pistons positioned opposite each other about the cam, each piston of the pair of pistons having a cam follower positioned on the non-circular outer profile surface of the cam.
4 more elements
A caloric heat pump system, comprising:
- a regenerator housing comprising a plurality of chambers;
- a plurality of stages, each of the plurality of stages comprising a magneto-caloric material disposed within one of the plurality of chambers;
- a magnet positioned proximate the regenerator housing;
- and
- a pump operable to circulate a working fluid through the plurality of stages, the pump comprising
- a motor;
- a cam coupled to the motor such that the cam is rotatable by the motor, the cam having a non-circular outer surface;
- a first pair of pistons offset from each other on the cam, each piston of the first pair of pistons having a cam follower positioned on the non-circular outer surface of the cam;
- a second pair of pistons offset from each other on the cam, each piston of the second pair of pistons having a cam follower positioned on the non-circular outer surface of the cam,
- wherein one of the regenerator housing or the magnet is movable relative to the other of the regenerator housing or the magnet assembly, and wherein in a first position the regenerator housing is positioned such that a first stage of the plurality of stages is within a magnetic field of the magnet and a second stage of the plurality of stages is out of the magnetic field of the magnet, and wherein in a second position the regenerator housing is positioned such that the first stage of the plurality of stages is out of the magnetic field of the magnet and the second stage of the plurality of stages is within the magnetic field of the magnet.
7 more elements
Dependencies are inferred from the claim text.