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 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: 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 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 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 closed loop liquid cooling unit for dissipating heat from an electronic device includes a housing having a bottom and a top. Opposing sides extend along a housing axis (AH) between an open entrance end and an open exit end. The cooling unit further includes a cold-plate and a heat exchanger having a plurality of cooling tubes that extend between headers. A pump and a plurality of hoses circulate liquid. A heat exchanger axis (AHEX) extends diagonally across the housing at an acute angle to the housing axis (AH). The heat exchanger axis (AHEX) defines a wedge-shaped entrance air plenum and a wedge-shaped exit air plenum. The headers are sealed for directing air through the air passages and across the cooling tubes. The pump is disposed within the wedge-shaped entrance air plenum.

Abstract: A heat exchanger assembly is provided including a primary housing having a plurality of primary condensing fingers extending upwardly from and perpendicular to a horizontal axis and disposed circumferentially about a primary axis. A tube extends radially from the primary axis along the horizontal axis toward a remote housing including remote condensing fingers extending downwardly from and perpendicular to the horizontal axis. The remote condensing fingers are disposed circumferentially about a remote axis extending vertically through the remote housing. The tube interconnects the primary housing and the remote housing and is flexible to facilitate movement of the housings relative to one another.

Abstract: A portable air conditioner comprises a tank for storing a liquid therein, a plurality of tubes, and at least one fin disposed between adjacent tubes. The tubes are spaced from one another defining an air passageway therebetween having an air inlet and a dry air outlet. Each tube has a first end extending into the tank in fluid communication with the liquid and a second end extending opposite the tank defining a wet air outlet and a wicking material disposed therein and in fluid communication with the liquid. A sheet valve sealingly engages the dry air outlet and the wet air outlet and is moveable for adjusting an amount of air flow exiting from the dry air outlet and the wet air outlet. At least one aperture is defined within each of the tubes between the ends to divert air flowing through the air passageway into the tubes.

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 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: The invention provides a heat exchanger assembly for cooling an electronic device wherein the upper portion of the housing includes a plurality of condensing tubes extending upwardly from the lower portion of the housing. A plurality of air heat transfer fins zigzag transversely to a primary axis (A) between adjacent ones of the condensing tubes for dissipating heat from vapor boiled off of the refrigerant. At least two next adjacent condensing tubes of the plurality diverge upwardly from the bottom ends toward the top distal ends thereof. Accordingly, the space containing the air heat transfer fins between the two next adjacent condensing tubes is greater at the top distal ends than at the bottom ends of the condensing tubes. The condensing tubes can either have a constant cross-section with diverging tube axes or can have a decreasing cross-section from bottom to top with parallel tube axes.

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 orientation insensitive heat exchanger assembly includes a housing having an upper portion including condensing tubes extending upwardly and intersecting a top wall of the lower portion. The condensing tubes are spaced equally from one another circumferentially and radially from the central axis and extend outwardly at a predetermined angle from the central axis. A fan assembly is disposed along a central axis extending upwardly from a center of the housing wherein the condensing tubes surround the fan assembly and the fan moves air radially out through the spaces between the condensing tubes.