A portable refrigerator includes a main housing, a refrigerator cover, a cooling mechanism, a rechargeable battery pack and a control unit. The cooling mechanism includes heat exchanging tubes, a compressor, an evaporator and a condenser connected to the evaporator and the compressor. The rechargeable battery pack is detachably attached on a power compartment of the main housing. The control unit is supported in the main housing and electrically connected to the rechargeable battery pack and the cooling mechanism for centrally controlling an operation of the cooling mechanism. A predetermined amount of refrigerant is arranged to controllably pass through the heat exchanging tubes, the condenser, the evaporator and the compressor for extracting heat from the accommodating cavity.

A portable refrigerator includes a main housing, a refrigerator cover, a cooling mechanism, a rechargeable battery pack and a control unit. The cooling mechanism includes heat exchanging tubes, a compressor, an evaporator and a condenser connected to the evaporator and the compressor. The rechargeable battery pack is detachably attached on a power compartment of the main housing. The control unit is supported in the main housing and electrically connected to the rechargeable battery pack and the cooling mechanism for centrally controlling an operation of the cooling mechanism. A predetermined amount of refrigerant is arranged to controllably pass through the heat exchanging tubes, the condenser, the evaporator and the compressor for extracting heat from the accommodating cavity.

Disclosed are a robot cleaner, a refrigerator, a container transfer system, and a method of transferring and retrieving a container using the robot cleaner. The method of transferring a container include returning a robot cleaner to a position guide device installed at a refrigerator, mounting the robot cleaner on the position guide device, transferring, by the refrigerator, a container built in the refrigerator to mount the container on the robot cleaner, and moving the robot cleaner on which the container is mounted to a target position.

A system for temperature-controlled transport of food on a vehicle includes food carts including an opening for ingress of air and an opening for egress of air and a refrigeration system including air ducts configured to convey pressurized air from the refrigeration unit to the food carts, including air outlets configured to interface with the food carts, air ducts configured to convey air from the food carts to the refrigeration unit, including air inlets configured to interface with the food carts, wherein the air outlets and air inlets include a spring-loaded valve configured for automatically opening when a food cart rests against the valve, and for automatically closing when said food cart no longer rests against the valve, one or more fans configured for circulating air within the air ducts, and, an ultraviolet (UV) light sterilization system located within the air ducts.

A mobile beverage dispenser comprises a wheelable platform having mounted thereon a chillable chamber connected to a refrigerated cooling coil for removing heat from a beverage in a bulk storage container placed therein for cooling; and a beverage dispensing tap connectable to the container in fluid communication with the beverage, and mounted in thermally conductive relationship with the chillable chamber, whereby the chamber when chilled removes heat from the dispenser in preparation for dispensing of the beverage, by virtue of the conductive relationship.

A supply system with a plurality of consumers, which can be supplied with a minimum volumetric flow by the supply system to ensure their operational function, wherein the supply system exhibits a network of lines with a plurality of lines, which are each hooked up to the consumers, and a pump connected to the lines for generating a volumetric flow of supply fluid in the lines, wherein the supply system incorporates a network of lines in which consumers are fluidically connected in parallel in relation to the pump arrangement, and wherein each consumer has allocated to it at least one flow control valve functionally placed upstream from the respective consumer in the cooling circulation as viewed from the position of the pump in the direction of flow.

An aircraft galley with a main body formed with walls and a cover plate which form a stowage space for catering containers and have trolley berths arranged next to one another. The stowage space is configured as a cooling chamber, and at least one cooling apparatus introduces cooling air into the stowage space via cooling air outlets in the upper region of the catering containers and extracts heated cooling air via return air inlets in the lower region of the catering containers. A drip pan is substantially perpendicularly below the cooling apparatus, which drip pan has, in the edge region of at least one side, a transition portion to a seal, and a collecting portion. This advantageously achieves a situation where the condensed water is collected and discharged, and accumulations of water are avoided on the floor of the galley in the working area of the flight attendants.

A refrigeration system having an airflow supply system having a supply duct providing cooled air from a refrigeration unit to a plurality of galley carts received in one or more cart compartments includes a plurality of valves coupled in the airflow supply system for controlling flows of the cooled air to the plurality of galley carts in the one or more cart compartments, where each valve of the plurality of valves is associated with a respective galley cart. The refrigeration system includes a plurality of primary valve control actuators each coupled to a respective valve and configured to reposition the respective valve during a first mode of operation. The refrigeration system includes a backup valve control actuator coupled to at least one of the plurality of valves and configured to reposition the at least one of the plurality of valves during a second mode of operation.

A refrigeration system having an airflow supply system having a supply duct providing cooled air from a refrigeration unit to a plurality of galley carts received in one or more cart compartments includes a plurality of valves coupled in the airflow supply system for controlling flows of the cooled air to the plurality of galley carts in the one or more cart compartments, where each valve of the plurality of valves is associated with a respective galley cart. The refrigeration system includes a plurality of primary valve control actuators each coupled to a respective valve and configured to reposition the respective valve during a first mode of operation. The refrigeration system includes a backup valve control actuator coupled to at least one of the plurality of valves and configured to reposition the at least one of the plurality of valves during a second mode of operation.

A mobile refrigeration cabinet that includes a refrigerated section, a non-refrigerated section that has an aperture in a side thereof, and an opening between the refrigerated and non-refrigerated section. The aperture allows access to the non-refrigerated section. The cabinet may include a movable tray disposed in the non-refrigerated section that is movable through the aperture, and a refrigeration system removably mounted on the movable tray. A biasing system is configured to engage the movable tray so as to bias the refrigeration system towards the opening between the refrigerated section and the non-refrigerated section such that a portion of the refrigeration system sealingly engages the opening.