A refrigerator appliance includes an ice maker provided within a cabinet of the appliance, the ice maker including a plurality of walls forming a receiving space, a conductive ice mold provided within the receiving space, the conductive ice mold defining an internal cavity and an exterior surface, a primary water supply positioned below the conductive ice mold to direct an ice-building spray of water to the conductive ice mold, a heat exchanger disposed on the conductive ice mold to draw heat therefrom, and a secondary water supply provided adjacent the exterior surface of the conductive ice mold. The secondary water supply dispenses ice-melting water over the exterior surface of the conductive ice mold.

A refrigerator appliance includes an ice maker provided within a cabinet of the appliance, the ice maker including a plurality of walls forming a receiving space, a conductive ice mold provided within the receiving space, the conductive ice mold defining an internal cavity and an exterior surface, a primary water supply positioned below the conductive ice mold to direct an ice-building spray of water to the conductive ice mold, a heat exchanger disposed on the conductive ice mold to draw heat therefrom, and a secondary water supply provided adjacent the exterior surface of the conductive ice mold. The secondary water supply dispenses ice-melting water over the exterior surface of the conductive ice mold.

An ice making system for creating clear ice and an associated method are provided. The ice making system employs a first sealed refrigerant system connected to a heat exchanger. A second sealed refrigerant system is also connected to the heat exchanger for cooling a first refrigerant of the first sealed refrigerant system. A heat exchanger heater is at least partially contained with the heat exchanger for heating the first refrigerant. A pump in the first refrigerant system is activated after heat exchanger heater has warmed the first refrigerant, enabling a cooling cycle to begin. Once sufficient clear ice has been generated, the pump is deactivated.

An ice making system for creating clear ice and an associated method are provided. The ice making system employs a first sealed refrigerant system connected to a heat exchanger. A second sealed refrigerant system is also connected to the heat exchanger for cooling a first refrigerant of the first sealed refrigerant system. A heat exchanger heater is at least partially contained with the heat exchanger for heating the first refrigerant. A pump in the first refrigerant system is activated after heat exchanger heater has warmed the first refrigerant, enabling a cooling cycle to begin. Once sufficient clear ice has been generated, the pump is deactivated.

An ice maker (126) including an ice maker frame having an air inlet provided at a first end thereof. An ice tray (144) is rotatably secured to the ice maker frame and configured to form ice pieces therein. An air handler (142) includes an outlet diffuser having a central body defined by a first wall—and a radially spaced apart second wall, wherein a plurality of radially extending fins are disposed between the first and second walls. Each of the fins is spaced apart, one from the other, along an outer peripheral surface of the first wall. In an installed position, the outlet diffuser is disposed directly adjacent the air inlet at the first end of the ice maker frame. A method is provided for synchronizing an ice making cycle of an ice making unit and a defrost cycle of an evaporator.

An ice maker (126) including an ice maker frame having an air inlet provided at a first end thereof. An ice tray (144) is rotatably secured to the ice maker frame and configured to form ice pieces therein. An air handler (142) includes an outlet diffuser having a central body defined by a first wall—and a radially spaced apart second wall, wherein a plurality of radially extending fins are disposed between the first and second walls. Each of the fins is spaced apart, one from the other, along an outer peripheral surface of the first wall. In an installed position, the outlet diffuser is disposed directly adjacent the air inlet at the first end of the ice maker frame. A method is provided for synchronizing an ice making cycle of an ice making unit and a defrost cycle of an evaporator.

An ice maker for a refrigerator includes: an upper assembly including an upper tray forming an upper chamber, which is a portion an ice chamber, and having an upper opening, and a temperature sensor configured to sense temperature of the ice chamber in contact with the upper tray; and a lower assembly being rotatable with respect to the upper assembly and having a lower tray forming a lower chamber that is another portion of the ice chamber, in which a contact portion between the temperature sensor and the upper tray is positioned closer to a contact surface of the upper tray and the lower tray than the upper opening.

An ice maker for a refrigerator includes: an upper assembly including an upper tray forming an upper chamber, which is a portion an ice chamber, and having an upper opening, and a temperature sensor configured to sense temperature of the ice chamber in contact with the upper tray; and a lower assembly being rotatable with respect to the upper assembly and having a lower tray forming a lower chamber that is another portion of the ice chamber, in which a contact portion between the temperature sensor and the upper tray is positioned closer to a contact surface of the upper tray and the lower tray than the upper opening.

An ice cube producing unit comprising an ice cube tray having at least two ice cube compartments, a lid which is suitable for being mounted on the tray to seal water or other liquid inside said at least two ice cube compartments. Said ice cube producing unit further comprises a displacing arrangement connecting the tray and the lid and having two positions: a first position where the lid is held in a position where it abuts the ice cube tray to seal the contents of the at least two ice cube compartment inside the compartment and a second position where the lid is held in a position where it is separated from the tray so that ice cubes formed in the tray can leave the tray.

A refrigerator includes a main body defining a storage compartment, a door, an ice making device, a water tank disposed for supplying water into the ice making device, and an ice bin to receive and store ice pieces made in the ice making device. The ice making device includes an ice making tray having ice making chambers configured to be filled with water for making the ice pieces, and an ejector extending from an upper central portion of the ice making tray in a longitudinal direction of the ice making tray to pass through both ends of the ice making tray. The ejector is configured to be maintained in a fixed state during water supply, ice making, and ice separation processes, and the ice making tray is configured to rotate at an angle of about 360° in one direction with respect to the ejector.