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US 10,648,703 B2Granted
Caloric heat pump system
AssigneeHaier US Applicance Solutions, Inc.
InventorsMichael Goodman Schroeder, David G. Beers, Michael Alexander Benedict
Life of this patent
Estimating the term…
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.
Claims16
A caloric heat pump system, comprising:
- a regenerator housing comprising a plurality of chambers;
- a plurality of stages, each stage of the plurality of stages comprising a caloric material disposed within a respective chamber of the plurality of chambers;
- a plurality of conduits, each conduit of the plurality of conduits coupled to the regenerator housing at a respective one of the plurality of chambers;
- a pump coupled to the plurality of conduits, the pump operable to circulate a working fluid through the plurality of conduits and the plurality of stages;
- and
- a plurality of flow restrictors, each flow restrictor coupled to the regenerator housing or a respective one of the plurality of conduits, the plurality of flow restrictors configured such that a flow rate of the working fluid through each stage of the plurality of stages is uniform,
- wherein each flow restrictor of the plurality of flow restrictors is an adjustable needle valve or an adjustable pinch valve.
4 more elements
A caloric heat pump system, comprising:
- a regenerator housing comprising a plurality of chambers;
- a plurality of stages, each stage of the plurality of stages comprising a caloric material disposed within a respective chamber of the plurality of chambers;
- a plurality of conduits, each conduit of the plurality of conduits coupled to the regenerator housing at a respective one the plurality of chambers;
- a pump coupled to the plurality of conduits, the pump operable to circulate a working fluid through the plurality of conduits and the plurality of stages;
- and
- a plurality of flow restrictors, each flow restrictor of the plurality of flow restrictors coupled to the regenerator housing or a respective one of the plurality of conduits, the plurality of flow restrictors configured such that a flow rate of the working fluid through each stage of the plurality of stages is within five percent of one another,
- wherein each flow restrictor of the plurality of flow restrictors comprises at least one of an adjustable needle valve or an adjustable pinch valve.
4 more elements
A method for regulating fluid flow through a plurality of stages of a caloric heat pump, the method comprising:
- flowing a fluid through each stage of the plurality of stages;
- measuring a flow rate of the fluid through each stage of the plurality of stages;
- and
- adjusting a plurality of flow restrictors such that the flow rate of fluid through each stage of the plurality of stages is uniform,
- wherein each flow restrictor of the plurality of flow restrictors comprises an adjustable needle valve or an adjustable pinch valve.
2 more elements
Dependencies are inferred from the claim text.