The present invention is a high-performance ultra-low temperature chest freezer capable of reaching temperatures as low as 160 C. within several hours with the capability to automatically and continually defrost and dehumidify its payload bay before, during, and after a door open event without needing to cease freezing operations or raise the setpoint.

A refrigerator includes a main body that has a storage chamber and a drying chamber; a thermoelectric module that includes a heat absorber and a heat dissipater; a cooling fan that circulates air in the storage chamber to the heat absorber and the storage chamber; a heat-dissipating fan that blows air to the heat dissipater; an air guide that has a passage for guiding air heated by the heat dissipater to the drying chamber; a heater that is disposed in the passage; and a damper that controls a flow of air in the passage between the heat-dissipating fan and the heater. Heat of the heat dissipater transfers to the drying chamber through the passage of the air guide and the damper, thereby being able to dry an object to be dried.

A Transport Refrigeration Unit (TRU) includes one or more evaporators inside the TRU each containing two manifold tubes located at opposite ends of the evaporator and a multiplicity of cooling tubes traversing between the manifold tubes; one or more super-insulated vacuum tanks located in front of, beneath or inside the TRU, filled with liquid nitrogen, carbon dioxide or a cryogenic coolant connected to the one or more evaporators using vacuum-insulated pipes; a solenoid or pneumatic valve located upstream or downstream of the evaporator to meter a flow of nitrogen through the evaporator; a temperature controlling circuit that operates the solenoid or pneumatic valve; a flow restricting device that limits the flow of the cryogenic coolant through the evaporator; a vent pipe to vent the spent coolant outside the TRU; and a multiplicity of fans located adjacent to and above the evaporators that distribute the cooled air uniformly throughout the TRU.

An alcohol-based solvent chiller includes an insulated vessel; a spiral-shaped heat exchanger designed specifically to chill alcohol-based solvents that become viscous at low temperatures within the insulated vessel; a cryogenic tank with pressure building capability that will force coolant through the heat exchanger at a specific pressure; and a cryogenic pump to circulate viscous cryogenic temperature liquids within the insulated vessel.

A freezer includes a grinder to obtain a ground meat; a mixer to add fat to the ground meat; a payload bay to receive the ground meat; a plurality of evaporators coupled to the payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators; and a processor with code for: chopping the ground meat and during chopping, adding salt and ice to the ground meat being chopped and adding liquid nitrogen to maintain the temperature of the meat being chopped below 5 C. to obtain a chopped meat product; adding fat to the chopped meat product and then chopping the fat and adding liquid nitrogen to maintain the temperature of the chopped meat product and fat being chopped between 1 C. and 10 C. to obtain a chopped meat and fat product, wherein the ground meat, added fat, ice and salt are present in amounts so that the chopped meat and fat product has a fat content of from 1% to 20% by weight based upon the weight of the chopped meat and fat product.

The present invention is a high-performance ultra-low temperature chest freezer capable of reaching temperatures as low as 160 C. within several hours with the capability to automatically and continually defrost and dehumidify its payload bay before, during, and after a door open event without needing to cease freezing operations or raise the setpoint.

The invention relates to a device for injecting a fluid, in particular a cryogenic fluid, the device comprising a fluid feed head and a fluid dispenser body, detachably mounted on said feed head, said feed head comprising a groove for circulating the fluid fed to said body, said groove being closed when the body is mounted on the feed head and said groove being open when the feed head and the body are detached from one another.

An autonomous cooling vest to cool its user by evaporating a coolant in contact with the user's skin surface is described. Multifunctional panels attached to the vest in the parts corresponding to the human body are permeable to ambient air and contain a liquid retaining screen kept in contact with the user's skin. The cooling support system automatically controls the transfer of the coolant liquid contained in a reservoir to each screen and allows the user to adjust the operation of the system to activate and deactivate the ventilation on the liquid retained in the screens and adjust the amount of liquid dispersed over the screens as needed. The flow of air ventilated by the fans and the air that permeates through the referred multifunctional panels favor the evaporation of the liquid retained in the screens, promoting the user's cooling.

An apparatus for reducing a temperature of products includes a housing having a chamber within, wherein the chamber has upper and lower regions; a conveyor for transporting the products through the chamber, the conveyor constructed for substantial gas flow to pass through the conveyor without substantially reducing the ability of the conveyor to transport the products; an agitator associated with the conveyor for selective, intermittent contact with the conveyor to displace the conveyor from a plane of travel, thereby displacing the products on the conveyor to substantially prevent the products from adhering to the conveyor and other of the products; a gas circulation device disposed within the chamber to generate circulating gas flow within the chamber; and a shroud disposed within the chamber for coacting with the conveyor to provide an interface between the upper and lower regions, the shroud constructed and arranged to guide the circulating gas flow from the lower region through the conveyor to the upper region, and thereby facilitating displacement of the products on the conveyor to increase exposed surface area of said products. A related method is also provided.

The present disclosure relates to a novel vapor compression refrigeration system, and the methods of making and using the vapor compression refrigeration system.