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: 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 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.

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. The grow module defines a root chamber and a plurality of apertures for positioning a root end of the plant pod in the root chamber. A resonator may be positioned on each plant pod or at each of the plurality of apertures for generating a unique sound signature when a specific plant pod is inserted into a specific aperture. A detection device, such as a microphone, measures the sound waves generated by the resonator and a controller determines a location and/or a type of the plant pod based on the unique sound signature.

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: 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 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 mounted within the grow chamber for receiving a plurality of plant pods. A nutrient dosing system is positioned within a root chamber and includes a plurality of nozzles. A nutrient cartridge and a water supply are fluidly coupled to a dilution tank and are independently regulated to control the flow rate of nutrients and water that are mixed to create a flow of diluted nutrient mixture. A pump system selectively discharges the flow of diluted nutrient mixture to desired locations within the root chamber.

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 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 method of operating a refrigerator, as provided herein, may include initiating a first image capture sequence at a camera module and identifying a first stored item based on a first two-dimensional image of the first image capture sequence. The method may further include determining an internal location of the first stored item within a chilled chamber or generating an expanded image of the first stored item and a second stored item spaced apart from the first stored item.

Abstract: A refrigerator appliance or a variable shelf assembly, as provided herein, may include a selectively-sealed shelf tube, a support piston, a shelving bracket, a first valve, and a second valve. The selectively-sealed shelf tube may define a fluid inlet to receive water therethrough and a fluid outlet to exhaust water therethrough. The support piston may be slidably disposed within the selectively-sealed shelf tube to move between a top position and a base position according to a volume of water within the selectively-sealed shelf tube. The shelving bracket may be fixed to the support piston to move therewith. The first valve may be upstream from the fluid inlet to selectively permit water thereto. The second valve may be downstream from the fluid outlet to selectively permit water from the variable shelf assembly.

Abstract: A method for forming a caloric regenerator includes depositing layers of additive material. The additive material includes a caloric material. The method also includes joining the layers of additive material to one another. After joining the layers of additive material, the caloric regenerator includes a regenerator body that extends longitudinally between a hot end portion and a cold end portion. A working fluid is flowable through the regenerator body between the hot and cold end portions of the regenerator body. The layers of additive material are deposited such that one or more of a cross-sectional area of the regenerator body, a void fraction of the regenerator body, a characteristic size of the caloric material, and a composition of the caloric material varies along a length of the regenerator body between the hot and cold end portions of the regenerator body.

Abstract: A method for operating an elasto-caloric heat pump includes running the elasto-caloric heat pump with a pre-strain in an elasto-caloric stage of the elasto-caloric heat pump set to an initial pre-strain setting, and gradually shifting the pre-strain in the elasto-caloric stage of the elasto-caloric heat pump set away from the initial pre-strain setting and towards a final pre-strain setting over a time interval.

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 refrigerator, including a sealed refrigeration system, is provided herein. The sealed refrigeration system may include a compressor, a phase separator, and a rotatable heat exchanger. The phase separator may be in fluid communication with the compressor and include a separator body defining an inner face and an outer face. The inner face may define a refrigerant cavity. The outer face may be directed away from the refrigerant cavity opposite the inner face. The rotatable heat exchanger may include a thermally conductive body and a plurality of spaced planar fins. The thermally conductive body may be positioned about the outer face along a rotation axis. The planar fins may extend from the thermally conductive body in a radial direction away from the phase separator. The plurality of spaced planar fins may define an axial intake channel extending parallel to the rotation axis through one or more planar fins.

Abstract: A magneto-caloric thermal diode assembly includes a magneto-caloric cylinder. Each of a 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. A variable speed motor is coupled to one of the magneto-caloric cylinder and the plurality of thermal stages. The variable speed motor is operable to rotate the one of the magneto-caloric cylinder and the plurality of thermal stages relative to the other of the magneto-caloric cylinder and the plurality of thermal stages.

Abstract: A refrigerator, including a sealed refrigeration system, is provided herein. The sealed refrigeration system may include a compressor, a phase separator, and a rotatable heat exchanger. The compressor may compress a refrigerant fluid through the sealed refrigeration system. The phase separator may be in fluid communication with the compressor. The phase separator may include a separator body defining an inner face and an outer face. The inner face may define a refrigerant cavity within the phase separator body. The outer face may be directed away from the refrigerant cavity opposite the inner face. The rotatable heat exchanger may include a thermally conductive body defining a dynamic shear surface directed toward the outer face of the separator body. Moreover, a set fluid gap may be defined between the dynamic shear surface and the outer face.

Abstract: A caloric heat pump includes a plurality of elasto-caloric stages. The plurality of elasto-caloric stages is distributed between along an axial direction within a chamber of a housing. Each elasto-caloric stage includes a hub, a rim and a plurality of elasto-caloric spokes. The plurality of elasto-caloric spokes extend between the hub and the rim along a radial direction. The plurality of elasto-caloric stages is rotatable about the axial direction.

Abstract: A rotating heat carrier system includes a barrier having a first side portion and a second side portion. A plurality of disks is mounted to a shaft. A motor is coupled to the shaft. The motor is operable to rotate the shaft and the plurality of disks. The plurality of disks is at least partially positioned within the barrier. A first portion of each of the plurality of disks extends along a radial direction away from the first side portion of the barrier. A second portion of each of the plurality of disks extends along the radial direction away from the second side portion of the barrier.