Abstract: A thermosiphon cooling assembly includes a refrigerant disposed in a lower portion of a housing for undergoing a liquid-to-vapor-to-condensate cycle. A mixing device is disposed within the lower portion of the housing for increasing the transfer of heat from the electronic device during the liquid-to-vapor-to-condensate cycle. The mixing device may include a vapor stirrer disposed above the liquid of the refrigerant and/or a liquid stirrer disposed in the liquid of the refrigerant for moving the liquid of the refrigerant over a boiler plate.

Abstract: An heat exchanger assembly includes a plurality of tubes defining a plurality of parallel refrigerant passages therein carrying a refrigerant longitudinally from an inlet header to an outlet header. Water flows from a reservoir through a distributor apparatus to provide even wetting between the ends of the tubes as the water flows laterally over the tubes between an entry edge and an exit edge. A screen is provided adjacent the exit edge to collect excess water to be deposited into a water tray provided beneath and spaced from the exit edge of the tubes. A pump is provided to move water from the water tray to the reservoir to preserve water. If excess water is lost, such as through evaporation, a supplemental water feed line provides supplemental water to the system.

Abstract: A thermosiphon cooling assembly for dissipating heat generated by an electronic device includes a housing having a housing top, housing bottom and opposing sides. The opposing sides extend between the housing top and the housing bottom to define a low profile entrance and a low profile exit. A refrigerant is disposed within one or more boiling chambers. Heat generated by the electronic device is transferred to the refrigerant by the boiling chambers for liquid-to-vapor transformation. Condenser tubes having a bottom end and a top end extend from the boiling chambers at a diagonally upward angle across the sides between the housing bottom and housing top. The condenser tubes receive and condense vapor boiled off from the refrigerant. Air moving devices axially move air through the housing. Air is flowed across the condenser tubes to facilitate condensation.

Abstract: An integrated liquid cooling unit comprising a liquid pump and a U-shaped flat tube. An adapter rigidly connects and establishes fluid communication between the pump and the tube creating an integrated unit for cooling an electronic chip via a closed loop. Heat is rejected from the coolant through cooling fins disposed between the legs of the U-shaped tube to passing air being propelled by a blower assembly.

Abstract: A thermosiphon cooling assembly cools an electronic device with a conical condensing tube disposed about a curved central axis curving upwardly from a top of the evaporating unit to an upper distal end and a shroud disposed outward of an exterior surface of the condensing tube at the upper distal end extending axially along the central axis from the upper distal end to a lower edge spaced from the top defining an air opening. An air moving device moves air about the central axis within the shroud to the air opening. A plurality of condensing fins are disposed in the condensing tube and each condensing fin forms a pair of corners with an interior surface of the condensing tube and a wick material is disposed in each of the corners to return condensed vapor to the evaporating unit.

Abstract: A plurality of tubes define refrigerant passages extending vertically from a lower end to an upper end for condensing a superheated refrigerant to a subcooled liquid. A bottom header is in fluid communication with the lower end of the tubes, and a top header is in fluid communication with the upper end of the tubes. A plurality of fins extend back and forth between a plurality of apexes joined to the tubes by a connector with a plurality of gaps defined between the fins and the sides of the tubes to allow water to flow through the gaps for greater heat transfer. Methods of fabricating and a method of operating the heat exchanger are also described.

Abstract: A hermetically sealed housing includes a plurality of inner walls extending radially from a central post to a circular outer wall, thereby defining a plurality of pie shaped chambers, each independently containing a refrigerant. At least one of the chambers is always in position to remove heat from an electronic device regardless of the orientation of the heat exchanger assembly. A plurality of side fins are disposed on the outer wall of the housing, and a plurality of top fins extend radially from a central axis (A) and are disposed on top of the housing. A wicking material is disposed on the interior of each chamber. A fan assembly is disposed on top of the top fins to blow air radially down into the fins.

Abstract: The heat exchanger of the present invention provides a plurality of tubes defining refrigerant passages extending vertically from a lower end to an upper end. According to an exemplary embodiment, the refrigerant passages carry superheated refrigerant. A bottom header is in fluid communication with the passage at the lower end of the tube, and a top header is in fluid communication with the passage at the upper end of the tube. A plurality of plates extend rearwardly from the tubes to a distal edge. Adjacent plates extending from adjacent tubes are closed off at the distal edges by a connector, and adjacent plates extending from the same tube have a rear opening between the distal edges for receiving air into the assembly. A plurality of orifices are disposed along the plates to allow air from the rear opening to flow downstream between the tubes. A water tank and wicking material are provided for wetting the plates. The water abstracts heat from air passing over the plates and evaporates into the airstream.

Abstract: A water desalinator includes a plurality of spaced tubes for establishing wet channels with fins extending between adjacent tubes for establishing a plurality of dry channels. A blower blows air through the dry channels, and air is bled from the dry airstreams to form wet airstreams flowing through the wet channels. A saline water tank is in fluid communication with the tubes to introduce saline water into the wet channels. Heat is extracted from the dry airstreams and transferred to the saline water, causing it to evaporate into the wet airstreams. By rejecting the heat out of the wet airstream in a condensation chamber, fresh water condenses out of the wet airstream and deposits into a water tank.

Abstract: A portable evaporative cooler includes a first reservoir for holding a working fluid and having an air inlet and an air outlet. A partition separates the first reservoir from a second reservoir which stores a reserve fluid. A chute curved from the partition through the second reservoir directs the flow of air from the air outlet through a curved path. A valve in the partition replenishes the working fluid from the reserve fluid in the second reservoir and is responsive to a sensor disposed within the first reservoir.

Abstract: A cooling assembly includes a housing supporting a nozzle for directing cooling air over an electronic component. A casing rotatably supports a shaft, which in turn, supports a compressor, an expander, and an electric motor, for circulating air and delivering the cooling air to the nozzle. The assembly is distinguished by air bearings supporting the shaft in the casing on a thin film of air, thereby maintaining a contaminate free housing.

Abstract: A heat sink removes heat from an electronic device and comprises a base, a lid. An inner ring of first fins extend radially outwardly first length from an inner circle and extend axially a first height from the top surface of the base, and an outer ring of second fins extend radially inwardly a second length from an outer periphery and extend axially a second height from the top surface of the base. A confining plate extends radially above the fins and is spaced below the bottom surface of the lid whereby coolant fluid flows from an inlet opening of the lid through the center opening of the confining plate and radially outwardly through the fins and upward around the outer edge of the confining plate and into the space above the confining plate to an outlet opening. A nozzle having a throat is disposed above the lid and extends below the lid to the confining plate. A flow diverter extends upwardly from the top surface of the base and into and through the throat of the nozzle.

Abstract: The invention provides a heat sink for flowing coolant into inlet manifold channels extending into a inlet edge of a manifold where the flow is forced downward into parallel and spaced micro-channels extending across the manifold channels and re-directing the coolant up into and out of outlet manifold channels extending into an outlet edge of the manifold and interleaved with the inlet manifold channels, and by maintaining a base-width of the micro-channels in the range of forty microns to one hundred microns, maintaining a base-height of the micro-channels in the range of two hundred microns to four hundred microns, maintaining a manifold-height through of the manifold channels in the range of one thousand microns to three thousand microns, and maintaining a manifold-width of the manifold channels in the range of three hundred and fifty microns to one thousand microns.

Abstract: A heating and ventilating and air conditioning system includes an evaporative cooler positioned upstream from an evaporator. The evaporative cooler defines a primary airstream and a secondary airstream flowing transversely to the primary airstream. The output temperature To of the primary airstream is maintained by controlling the mass flow rate ratio of the secondary airstream to the primary airstream. By controlling the mass flow rate ratio, cooler air from the primary airstream is provided to the evaporator, thereby improving the efficiency of the overall system.

Abstract: A cooling assembly includes a plate having a center portion for engaging and transferring heat from the electronic device and a peripheral portion surrounding the center portion. A heat sink overlies the plate and receives heat from the plate. A thermoelectric module is disposed between the peripheral portion of the plate and the heat sink for pumping heat laterally from the center portion of the plate to the peripheral portion of the plate and then to the heat sink.

Abstract: A modular CPU cooling unit designed to fit within the available space within an existing box or cabinet containing a CPU. The fan, pump and liquid to air cross flow heat exchanger are fitted within the available volume with the fan spaced away from the heat exchanger a suitable distance to pull air through the entire face area of the heat exchanger, even though it is considerably larger than the fan.

Abstract: The invention provides a heat exchanger assembly having a housing which defines a boiling chamber extending along an axis between opposite ends. A plurality of first condensing tubes extend axially and downwardly in one direction at a first predetermined angle to and below the axis (A) from the housing and a plurality of second condensing tubes extend axially and upwardly in the opposite direction at the same predetermined angle to and above the axis (A) from the housing. The volume of refrigerant in the housing is greater than the volume of the second condensing tubes and the volume of the boiling chamber.

Abstract: A heat exchanger assembly for cooling an electronic device comprises a flange, a dome, a plurality of condensing tubes, a shroud and a boiler plate. The dome is semi-cylindrical in shape with flat axial ends. A plurality of spaced condensing tubes is disposed in a plurality of fan rows with each fan row being in a fan plane to facilitate more-efficient heat transfer. The distal ends of each of the condensing tubes are elongated along the associated fan plane to define the fan rows in a fan shape. In other words, each fan row contains one elongated, fan-shaped condensing tube. The condensing tubes in adjacent fan planes terminate in an arch extending concentrically about the center axis at the flat axial ends of the semi-cylindrical dome. The pattern of the elongated condensing tubes resembles the erectile ribs of an igloo.

Abstract: Three embodiments of a heat exchanger assembly for cooling an electronic device are shown respectively in FIGS. 1-2, 3 and 4 and each comprises a flange, a dome, a plurality of condensing tubes, a shroud, and a boiler plate. In the first embodiment shown in FIG. 1, the dome is semi-spherical in shape and the distance measured axially along the center axis equals the distance measured laterally from or perpendicular to the center axis. In the second and third embodiments shown in FIGS. 3 and, 4, respectively, the distance measured axially along the center axis is greater than the distance measured laterally from or perpendicular to the center axis. The domes in the second and third embodiments are an ellipsoid and a semi-logarithmic body, respectively. In all embodiments, a plurality of condensing tubes aligned in fan rows and arced rows extend from the dome to distal ends to facilitate more-efficient heat transfer.

Abstract: The invention provides an apparatus for moving thermal energy with respect to at least one of a beverage and a food product positioned in a vehicle or a stationary beverage machine. The apparatus includes a vortex tube positionable in a vehicle or a stationary beverage machine. The vortex tube includes an inlet and a cold outlet and a hot outlet. The vortex tube divides a primary air stream received in the inlet into a cold air sub-stream exiting the cold outlet and an a hot air sub-stream exiting the hot outlet. The apparatus also includes a containing member having a first wall with an inner surface for receiving a product. The containing member also includes a second wall surrounding the first wall to define a first cavity. The apparatus also includes a first fluid line extending between the first cavity and one of the cold and hot outlets for communicating one of the cold and hot air sub-streams to the first cavity.