Abstract: A novel heat transfer element which permits simple, low-cost conversion of energy inefficient electrically heated water heaters to energy efficient potable-water storage tanks for storing water heated by energy-efficient gas-fired water heating systems.

Abstract: A plate type condenser is constituted by a primary condensation section and a secondary condensation section positioned on the downstream side of the primary condenser. The primary condenser comprises a plurality of condensation elements and a plurality of condensate discharge grooves extending along respective condensation elements and inclined in the form of a herringbone with respect to the passages which pass a heated medium to be condensed and a medium to be heated in opposite directions.

Abstract: Heat exchanger for heat-transfer between substances of high pressure difference including a shell, a region through which a cooler substance is conveyed; an inlet for the cooler substance; a bundle of tubes arranged in a cooler substance compartment; and riser conduits operatively connectible to the shell and communicating with the compartment, with the substance to be cooled being passed through the tubes having a high temperature at the inlet of the heat exchanger and at the outlet; a tube bottom of predetermined thickness arranged at the heat exchanger inlet; and a device including a support-grating arranged in the vicinity of the tube bottom, operatively connectible to the shell and extending at least nearly perpendicular to the tube bottom in the region through which the cooler substance is conveyed.

Abstract: The air cooler section of a steam condenser which is normally untubed is provided with tubes thereby increasing the capacity and/or efficiency of the condenser without interfering with the longitudinal flow of vapor.

Abstract: The invention is directed to removable heat exchanger tube assemblies in heavy duty equipment radiators in which the tubes are each separately removable if they become defective in service. An inwardly facing annular ledge or abutment is molded into the inside diameter of each upper and lower sealing member to receive the respective ends of the tubes and prevent vertical movement of the tubes in service. A flange or shoulder is also provided on the lower portions of each tube and engages the inside of the lower sealing member to further restrain downward movement of the tubes in service. Each tube may be removed by pushing the tube upwardly to overcome the upper ledge abutment and thereby lift the tube free of the lower seal. Each tube may then be removed sidewise from the radiator. Variations of the removable sealing arrangement can be made and are described herein.

Abstract: A high-temperature gas exit in the form of a pipe bundle from a pre-stressed cast or concrete pressure container with a first cooling system comprising a sealing skin having cooling pipes arranged on the outside thereof and with a thermal insulation layer arranged on the inner side of the sealing skin. Between the first cooling system and the pipe bundle there is provided a second cooling system comprising a hollow double skin with cooling passages, the first cooling system and the second cooling system being independent of each other.

Abstract: The thermal conduction module for removing heat from one or more chips located therein consists of a housing made of heat conductive materials forming a cap over the chips. The housing contains one or more openings, one opposite each of the chips. More than one heat conductive element is included in each of the openings and are free to move lengthwise within the opening. The heat conductive elements are spring loaded so that the end of each element contacts the associated chip thereby lowering the thermal resistance of the interface therebetween. Side spring means are located between the sides of adjacent heat conductive elements forcing them away from one another and into contact with the opening wall.

Abstract: A condenser/evaporator heat exchanger comprising a plurality of vertically oriented panel units spaced moderately from one another. Each panel unit comprises a pair of thin film plastic sheets bonded to one another along a plurality of vertically extending bond lines transversely spaced from one another at regular intervals. The two sheets form between adjacent pairs of bond lines a plurality of vertical tubular condensing chambers adapted to receive pressurized steam. Brine is directed onto the outer surfaces of the panel units at the upper ends thereof, the brine descending down the outer surfaces of the panel units to be in heat exchange relationship with the steam inside the tubular condensing chambers.

Abstract: A heat exchange panel having a desired system of internal tubular passageways is described, wherein the internal passageways include opposed headers connected by connecting portions of said passageways extending therebetween. The headers are designed to provide uniform fluid distribution and to enable efficient drainage of fluid from the unit, including any entrapped gases.

Abstract: Dissipation of heat from miniature solid-state devices and the like is achieved by a resilient heat-sink structure which opens to receive a tab or other heat-transfer body freely between two relatively-movable oppositely-disposed broad-area portions of the structure and which then closes and yieldingly holds the two portions about the body as shaped end connectors are sprung and locked as the result of simple manipulations.

Abstract: The present invention relates to a heating and cooling system for structures such as residential dwellings. More particularly, the heating and cooling system includes one or more conduits disposed approximately six (6) feet underground and having opposite end extremities communicatively connected to the structure so as to define a closed air circulation system through the structure and one or more conduits. A fan assembly including appropriate controls is provided to induce and circulate air through the structure and through the one or more conduits such that a system of air may be continuously circulated from the structure through the underground disposed conduits and back through the structure.

Abstract: A radiator tank headsheet including an integral ferrule around an elongated tube-receiving opening and method for forming the same wherein the method includes the steps of forming an elongated depression in the sheet material having generally parallel sidewalls, endwalls joining the sidewalls, and a bottomwall, forming a pair of holes in the depression by removing a slug of sheet material from the bottomwall adjacent each of the endwalls, splitting the bottomwall generally along its centerline between the holes to form two bottomwall segments, and forcing the two segments outwardly and into coplanar relationship with the sidewalls of the depression to form an elongated opening including an integral ferrule having generally parallel, relatively high sidewalls and endwalls of lesser height joining the sidewalls.

Abstract: An inner surface substrate of metal tubes is provided with a single layer of randomly distributed metal bodies bonded to the substrate, spaced from each other, and substantially surrounded by the substrate to form body void space.

Abstract: The upper end portion of an upright tubular wall whose inner side is contacted by material requiring to be cooled, is surrounded by an annular receptacle for cooling water. An annular baffle extends from the receptacle towards but not into contact with the exterior of the wall; its free edge defines with the wall an annular gap. This gap is bridged by tufts of fibers which are arranged along the gap in one or more rows, so that water running from the receptacle over the baffle travels along the fibers whose free ends are in contact with the wall, and is applied to the wall of a film of uniform thickness.

Abstract: Method and apparatus for preventing condensate from forming on the inside walls of the heat exchanger of a combination air conditioning and heating unit during the cooling mode of operation. The formation of condensate on the inside surfaces of the heat exchanger is reduced by bleeding a small but sufficient amount of air pressurized by the air blower and conditioned by the evaporator into the combustion chamber and then into the heat exchanger to displace ambient air with high moisture content from the interior of the heat exchanger. A hole or a number of holes is provided in the partition separating the discharge section from the burner control section which is open to atmosphere to allow a portion of conditioned air into the heat exchanger.

Abstract: Apparatus for use in a heat exchanger assembly having wound fin tubing including a spacer member having a structural portion for securing components within the heat exchanger and a series of spaced projections extending therefrom. The spaced projections define a series of U-shaped openings adapted to receive and maintain the wound fin tubing in a fixed relationship. A retainer element is mounted to enclose the openings to secure the wound fin tubing therein. On some of the projections of the spacer member are mounted tabs which are inserted through slots in the retainer element to secure the retainer element to the spacer member such that the wound fin tubing is secured within the spaced openings and such that the structural portion of the spacer member secures various components of the heat exchanger assembly.

Abstract: A heat exchanger is provided for use in a blood handling system whereby the blood may be selectively heated or cooled, as required by the nature and stage of the operation. The heat exchanger, in the preferred embodiment, is in the form of a cylindrical housing having walls defining a helical path for the flow of blood through the exchanger and about the axis of the housing. The heat exchanging medium, typically water, flows separately through a conduit in the housing, the walls of which at least partially define the helical blood conduit for heating or cooling the blood flowing therethrough. The heat exchanger is characterized by a controlled route for the blood so as to uniformly expose the blood to the same type of heating or cooling and without creating dead spots in the blood flow. A long path of blood flow is provided in a small package with a highly efficient thermal transfer.

Abstract: The header delimits a bearing portion 14 against which abuts a partition connected to the inner wall of the header by a gasket 17. A pipe for supplying the liquid to be cooled arrives beneath the partition 8 and a degassing duct 24 arrives above the partition in a compartment closed by a stopper.

Abstract: To prevent the erosion caused by cavitation phenomena between a turbulence member and a tube of a tubular heat exchanger, as well as the corrosion by differential aeration in thin intervals between the tube of aluminum containing alloy and an elastomeric gasket, aluminum silicon platings are provided on the two walls of the tube.

Abstract: A plate type condenser is constituted by a primary condensation section and a secondary condensation section positioned on the downstream side of the primary condenser. The primary condenser comprises a plurality of condensation elements and a plurality of condensate discharge grooves extending along respective condensation elements and inclined in the form of a herringbone with respect to the passages which pass a heated medium to be condensed and a medium to be heated in opposite directions.