Abstract: A heat exchanger is disclosed having a plurality of stacked plate pairs or tubes, each having a predetermined internal cold flow resistance. A bypass conduit is included in the stack of plate pairs or tubes. The bypass conduit includes a central row of spaced-apart, mating dimples defining longitudinal flow channels on either side of the dimples for bypass flow through the bypass conduit under cold flow conditions. The longitudinal flow channels have a height and width such that the cold flow resistance therethrough is less than the cold flow resistance through the stacked plate pairs or tubes. In normal or hot flow conditions, the dimples create flow resistance by forcing the fluid flowing through the bypass conduit to change velocity and direction. This forces more oil to flow through the stacked plate pairs or tubes increasing heat transfer performance.

Abstract: An improved heat sink apparatus that utilizes either natural or forced convection to transfer heat generated by a high temperature medium to a lower temperature medium or converts cold energy from a low temperature fluid or solid medium to a different or higher temperature stage or condition of energy. The apparatus includes a thermally conductive base plate, a plurality of thick corrugated finned assembly components constructed and arranged in abutting relationship and offset from each other so as to cause a circuitous path of fluid flow therethrough. The apparatus also may include the base plate and a plurality of thick, sawtooth shaped, or segmented fins mounted thereon. The length of fluid travel from one finned component to an abutting finned component along the heat transfer surface is controlled in order to prevent development of thermal boundary layer on the inner surface of the finned assembly components.

Abstract: An improved apparatus for dispensing cooled, heated or ambient temperature liquids from a liquid tank which contains therein a cold sink member for maintaining the liquid at a preselected temperature. The cold sink member may be formed in the shape of a cup-like finned member or a tree-like shaped member having outwardly extending fingers in order to greatly increase the transfer of heat energy within the liquid tank and to reduce the thickness of boundary layer formation in the cold sink member. The apparatus includes adapter means operable to supply separately controlled, selective dispensing of any of the chilled, heated, or ambient temperature liquids.

Abstract: An improved heat sink apparatus that utilizes either natural or forced convection to transfer heat generated by a high temperature medium to a lower temperature medium or converts cold energy from a low temperature fluid or solid medium to a different or higher temperature stage or condition of energy. The apparatus includes a thermally conductive base plate, a plurality of thick corrugated finned assembly components constructed and arranged in abutting relationship and offset from each other so as to cause a circuitous path of fluid flow therethrough. The apparatus also may include the base plate and a plurality of thick, sawtooth shaped, or segmented fins mounted thereon. The length of fluid travel from one finned component to an abutting finned component along the heat transfer surface is controlled in order to prevent development of thermal boundary layer on the inner surface of the finned assembly components.

Abstract: An improved heat sink apparatus that utilizes either natural or forced convection to transfer heat generated by a high temperature medium to a lower temperature medium or converts cold energy from a low temperature fluid or solid medium to a different or higher temperature stage or condition of energy. The apparatus includes a thermally conductive base plate, a plurality of thick corrugated finned assembly components constructed and arranged in abutting relationship and offset from each other so as to cause a circuitous path of fluid flow therethrough. The apparatus also may include the base plate and a plurality of thick, sawtooth shaped, or segmented fins mounted thereon. The length of fluid travel from one finned component to an abutting finned component along the heat transfer surface is controlled in order to prevent development of thermal boundary layer on the inner surface of the finned assembly components.

Abstract: A heat exchange device including at least one inner cylinder member and at least one outer cylinder member, defining therebetween one or more annuli through which pressurized heat exchange medium is forced to flow. One or more rotatable members having formed thereon a plurality of finger-like projections that define longitudinal continuous or segmented grooves are disposed within the annuli. The pressurized heat exchange medium imparts angular force to the rotatable member causing it to flow vary rapidly with great vorticity within the grooves and also between the distal ends of the finger members and the adjacent containing circumferential surface of the inner and outer cylinder members. In some cases, angular force is imparted to the rotatable member(s) by external power sources, as a supplement to the flow of the pressurized heat exchange medium.

Abstract: A distributor for feeding the liquid-vapor mixture of refrigerant from the expansion valve to the core elements of an evaporator of an air conditioning system to provide equal distribution of both the liquid and vapor components. The distributor involves either a single header with separate orifices for the liquid and vapor in each core element or a pair of distribution headers to carry the separated component phases from a separator with an orifice for each phase in each core element where the phases would be recombined to pass through the core elements to a common outlet.

Abstract: A heat exchanger having a flow of air therethrough adapted for use in refrigeration systems includes a heat exchange coil and a plurality of sheet-like fins. The coil is formed of a plurality of tubes having a cooling medium flowing therethrough. Each of the fins are provided with openings for receiving the tubes in heat transfer relationship. A plurality of tabs are arranged in a surrounding relationship around the lower portion of the openings on the tubes for preventing the blow-off of condensate drops forming on the underneath side of the tubes.