Abstract: A caloric regenerator system includes a flow body that defines a plurality of cold side channels, a plurality of hot side channels and a central passage. A port body is received within the central passage of the flow body such that the flow body is rotatable relative to the port body. The port body defines a hot side port and a cold side port. A width of the hot side port is less than a width of the cold side port. An annular caloric regenerator is in flow communication with the plurality of cold side channels and the plurality of hot side channels such that a heat transfer fluid is flowable into the annular caloric regenerator through the plurality of cold side channels and out of the annular caloric regenerator through the plurality of hot side channels.

Abstract: Refrigerator appliances and methods, as provided herein, may include a cabinet, a door, a camera module, and a controller. The cabinet may define a chilled chamber. The door may be rotatably hinged to the cabinet to provide selective access to the chilled chamber. The camera module may be mounted to the cabinet within the chilled chamber. The controller may be operably coupled to the camera module. The controller may be configured to initiate an operation routine including initiating a continuous anti-fog capture sequence at the camera module, receiving a static image signal from the camera module during the continuous anti-fog capture sequence, or discarding the received static image signal.

Abstract: A heat pump, as provided herein, may include a hot side heat exchanger, a cold side heat exchanger, a pump, and a caloric heat pump. The caloric heat pump may include a regenerator housing, a plurality of stages, and a field generator. The regenerator housing may extend along an axial direction between a first end portion of the regenerator housing and a second end portion of the regenerator housing. The plurality of stages may be arranged sequentially along the axial direction from the first end portion to the second end portion. The plurality of stages may be arranged so that caloric temperature peaks of the plurality of stages increase along the axial direction according to a predetermined, non-linear curve. The field generator may be positioned adjacent to the plurality of stages to subject the plurality of stages to a variable field generated by the field generator.

Abstract: A magneto-caloric thermal diode assembly includes a magneto-caloric cylinder. A plurality of thermal stages is stacked along an axial direction between a cold side and a hot side. A hot side heat exchanger is positioned at the hot side of the plurality of thermal stages. The hot side heat exchanger includes a plurality of pins or plates for rejecting heat to ambient air about the hot side heat exchanger. A cold side heat exchanger is positioned at the cold side of the plurality of thermal stages. A heat transfer fluid is flowable through the cold side heat exchanger. The cold side heat exchanger is configured such that the heat transfer fluid rejects heat to the cold side of the plurality of thermal stages when the heat transfer fluid flows through the cold side heat exchanger.

Abstract: An indoor gardening appliance includes a liner defining a grow chamber and a grow module mounted within the grow chamber for receiving a plurality of plant pods. A motor rotates the grow module between a plurality of angular positions and a camera system captures images of the plants at the various positions. The plurality of images are used by the controller to estimate a total plant mass or a total plant volume, or the controller may stitch together the plurality of images to generate a 3D image that may be used to detect abnormal growth conditions or otherwise provide feedback to a user.

Abstract: A magneto-caloric thermal diode assembly includes a magneto-caloric cylinder. A plurality of thermal stages is stacked along an axial direction between a cold side and a hot side. Each of the plurality of thermal stages includes a plurality of magnets and a non-magnetic ring. The plurality of magnets is distributed along a circumferential direction within the non-magnetic ring in each of the plurality of thermal stages. The plurality of magnets and the non-magnetic ring of each of the plurality of thermal stages collectively define a cylindrical slot. The magneto-caloric cylinder is positioned within the cylindrical slot. In each of the plurality of magnets in one of the plurality of thermal stages, a first, second, third and fourth magnet segments are positioned and oriented such that the first, second, third and fourth magnet segments collectively form a closed loop high-field zone across the cylindrical slot.

Abstract: A heat pump system includes a magneto-caloric material disposed within a chamber of a regenerator housing. A back iron extends between an outer magnet and an inner magnet in order to provide a flux path between the outer and inner magnets. At least a portion of the back iron extends between the outer and inner magnets along the radial direction and is not positioned coplanar with the inner and outer magnets in a plane that is perpendicular to the axial direction. A related refrigerator appliance is also provided.

Abstract: A refrigerator appliance includes a fresh food working fluid circuit that couples a hot side heat exchanger, a fresh food cold side heat exchanger and a fresh food regenerator. A first pair of diverter valves and a hot side reservoir are coupled to the fresh food working fluid circuit. The hot side reservoir is positioned below one or both of the first pair of diverter valves. A freezer working fluid circuit couples a freezer cold side heat exchanger and a freezer regenerator. A second pair of diverter valves and a fresh food cold side reservoir are coupled to the freezer working fluid circuit. The fresh food cold side reservoir is positioned below one or both of the second pair of diverter valves. A liquid-liquid heat exchanger is also coupled to the fresh food working fluid circuit.

Abstract: A magneto-caloric thermal diode assembly includes a first magneto-caloric cylinder and a second magneto-caloric cylinder. The second magneto-caloric cylinder and a second plurality of thermal stages are nested concentrically within the first magneto-caloric cylinder and a first plurality of thermal stages. A plurality of magnets is distributed along a circumferential direction within a non-magnetic ring in each thermal stage of the first and second pluralities of thermal stages. Each thermal stage of the first and second pluralities of thermal stages has a first half and a second half. A polarity of the magnets of the plurality of magnets within the first half is oriented opposite a polarity of the magnets of the plurality of magnets within the second half along the radial direction in each thermal stage of the first and second pluralities of thermal stages.

Abstract: A refrigerator appliance includes a fresh food cold side heat exchanger positioned within a cabinet at a fresh food chamber and a freezer cold side heat exchanger positioned within the cabinet at a freezer chamber. Working fluid is flowable through a caloric material within a regenerator housing. The refrigerator appliances also includes features for flowing the working fluid from the regenerator housing to the fresh food cold side heat exchanger and for separately flowing the working fluid from the regenerator housing to the freezer cold side heat exchanger.

Abstract: A hydration system for an indoor gardening appliance includes a pressurized water supply including a pump assembly for pressurizing an accumulator and an auxiliary nozzle in fluid communication with the pressurized water supply. An auxiliary valve assembly is operably coupled to the auxiliary nozzle for selectively directing an auxiliary flow of water from the accumulator onto the plant pods when power is lost to the gardening appliance.

Abstract: A magneto-caloric thermal diode assembly includes a magneto-caloric cylinder. A plurality of thermal stages is stacked along an axial direction between a cold side and a hot side. A plurality of supports is positioned within the plurality of thermal stages. The plurality of supports is distributed along the axial direction. The plurality of supports contacts the magneto-caloric cylinder such that the plurality of supports limits deflection of the magneto-caloric cylinder along a radial direction. The plurality of thermal stages and the magneto-caloric cylinder are configured for relative rotation between the plurality of thermal stages and the magneto-caloric cylinder.

Abstract: An indoor gardening appliance includes a liner defining a grow chamber and a grow module mounted within the grow chamber for receiving a plurality of plant pods. An atmosphere control system includes an air supply source for providing a flow of intake air into the grow chamber. The flow of intake air may pass through an intake duct including permeation membranes for controlling the concentration of gases within the flow of intake air. A gas sensor is used to sense chamber concentrations of various gases and a controller may selectively energize the permeation membranes to control gas concentrations in the flow of intake air, thereby maintaining the chamber concentrations within the desired ranges.

Abstract: An indoor gardening appliance includes a liner defining a grow chamber and a grow module mounted within the grow chamber for receiving a plurality of plant pods. A lighting assembly is positioned within the grow chamber and includes a plurality of lights that are independent movable and adjustable. A controller detects an abnormal growth condition, e.g., a plant growing in a single direction, the presence and location of bare or void regions within a particular plant, growth toward a pinch point, and other growth abnormalities. The lighting assembly may be adjusted to correct the abnormal grow condition, e.g., by modifying an illumination schedule, an illumination direction, an intensity, a wavelength, or another parameter of the generated light.

Abstract: A refrigerator appliance, as provided herein, may include a cabinet, a door rotatably hinged to the cabinet, a user-detection assembly mounted to the cabinet, a sub-enclosure, and a controller. The sub-enclosure may define a storage volume and may be mounted to the cabinet. The sub-enclosure may include an electric lock assembly actuatable between a locked state restricting access to the storage volume and an unlocked state permitting access to the storage volume. The controller may be operably coupled to the user-detection assembly. The controller may be configured to initiate an operation routine. The operation routine may include receiving a purchase invoice, receiving a marker signal from the user-detection assembly, detecting a specific user based on the marker signal, determining the specific user corresponds to the purchase invoice, and directing the sub-enclosure to the unlocked state in response to determining the specific user corresponds to the purchase invoice.

Abstract: An indoor gardening appliance includes a liner defining a grow chamber and a grow module rotatably mounted within the grow chamber and defining a plurality of apertures for receiving a plurality of plant pods. A pollen pod is mounted to the grow module in one of the apertures and contains pollen for pollinating the plant pods to facilitate plant growth. A pollen ejection device, which may be a pressurized air nozzle or a protruding member for puncturing the pollen pod, is fixed to the liner or otherwise stationary relative to the pollen pod and is configured for engaging the pollen pod when the grow module rotates the pollen pod past the pollen ejection device to discharge and disperse pollen onto the plant pods.

Abstract: A refrigerator appliance, as provided herein, may include a cabinet defining a chilled chamber, a door rotatably hinged to the cabinet, a camera module, and a controller. The camera module may be mounted to the cabinet. The controller may be operably coupled to the camera module. The controller may be configured to initiate an operation routine. The operation routine may include receiving a purchase invoice, initiating an item recognition sequence within the refrigerator appliance, generating an initial recognition attempt of a first stored item based on the item recognition sequence, comparing the initial recognition attempt of the first stored item to the purchase invoice, generating a modified recognition attempt of the first stored item based on the comparison of the initial recognition attempt the first stored item to the purchase invoice, and recording a descriptor of the first stored item to an inventory within the refrigerator appliance.

Abstract: An indoor gardening appliance includes a liner defining a grow chamber and a grow module mounted within the grow chamber for receiving a plurality of plant pods. A hydration assembly is positioned within a root chamber and includes a plurality of nozzles that are independent movable and adjustable. A controller detects an abnormal or undesirable growth condition, e.g., plant roots growing in a single direction, into conflict with each other, toward a pinch point, or in another abnormal direction. The hydration assembly may be adjusted to correct the abnormal or undesirable growth condition, e.g., by modifying a hydration schedule, a nutrient concentration, a spray direction or magnitude, or another hydration parameter.

Abstract: An indoor gardening appliance includes a liner defining a grow chamber and a grow module rotatably mounted within the grow chamber for receiving a plurality of plant pods, the grow module defining a plurality of grow chambers spaced apart along the circumferential direction. One or more resilient sealing elements, e.g., formed from silicone, are positioned at the distal ends of the grow module to seal a gap between the grow module and the liner. The resilient sealing elements define one or more air ducts for providing a flow of air through the resilient sealing element into one of the plurality of chambers and a flow regulating device for regulating the flow of air.

Abstract: An indoor gardening appliance includes a liner defining a grow chamber and a grow module mounted within the grow chamber for receiving a plurality of plant pods. A lighting assembly is positioned within the grow chamber and includes a plurality of lights that are independently movable and adjustable. A controller receives an illumination parameter that may indicate a particular region of the grow chamber that should be illuminated, a particular lighting intensity, wavelength, or schedule, or other information related to a preferred lighting condition within the grow chamber. The lighting assembly is operated to illuminate the grow chamber according to the received illumination parameter.