Abstract: A refrigerator includes a main body defining a compartment, the compartment having an access opening and a first wall, a door supported by the main body for selectively closing at least part of the access opening, a sub-compartment on the door, the sub-compartment comprising a second wall having an opening, a heat exchanger supported by the first wall and positioned so that when the door is closed the heat exchanger is exposed to an interior of the sub-compartment through the opening, and a refrigeration system having a working medium for cooling the heat exchanger, where the heat exchanger further includes one or more segments of the refrigeration system attached to a heat exchanging plate.

Abstract: A door for an appliance is provided. The door of the appliance includes an outer panel with a rear surface. The door also includes a vacuum insulation panel and a barrier layer. The barrier layer is positioned between the rear surface of the outer panel and the vacuum insulation panel within the door.

Abstract: A method for operating a refrigerator appliance is provided. The method includes selecting a higher humidity setting or a lower humidity setting. A fan of the refrigerator appliance is operated in a first manner if the higher humidity setting is selected, and the fresh food fan is operated in a second, different manner if the lower humidity setting is selected. The method can assist with regulating humidity within a chilled chamber of the refrigerator appliance.

Abstract: A refrigerator appliance is provided. The refrigerator appliance includes an ice maker having a mold body. A temperature sensor is positioned adjacent the mold body of the ice maker. Utilizing measurements from the temperature sensor, a temperature of air within a chilled chamber of the refrigerator appliance and a temperature of the mold body can both be determined, and the use of multiple temperature sensors within the chilled chamber can thereby be eliminated.

Abstract: A refrigerator appliance is provided with a drain pan mounted below a condenser of the refrigerator appliance. The drain pan includes features such as a channel for directing air through the drain pan. The channel can, e.g., increase the efficiency of the condenser and/or promote evaporation of liquid contained within the drain pan.

Abstract: A system for cooling a compressor for an appliance includes a water source, a compressor having an outer shell, the compressor being configured to compress a refrigerant during a cooling cycle of the appliance, and a fluid heat transfer device. The fluid heat transfer device is configured to receive water from the water source and apply the water to the outer shell for rejecting heat from the compressor.

Abstract: A refrigeration system for an appliance includes a compression stage, a condenser stage, and an evaporation stage. The condenser stage includes a first condenser coupled to the compression stage and a pressure restriction device coupled between the first condenser and the evaporation stage.

Abstract: A refrigerator includes a main body defining a compartment, the compartment having an access opening and a first wall, a door supported by the main body for selectively closing at least part of the access opening, a sub-compartment on the door, the sub-compartment comprising a second wall having an opening, a heat exchanger supported by the first wall and positioned so that when the door is closed the heat exchanger is exposed to an interior of the sub-compartment through the opening, and a refrigeration system having a working medium for cooling the heat exchanger, where the heat exchanger further includes one or more segments of the refrigeration system attached to a heat exchanging plate.