Abstract: A cooler for mixtures of crystals and crystallizing liquid in the production of sugar and related products comprises a bundle of vertical pipes for the passage of such a mixture from a bottom chamber to a top chamber. The vertical pipes are surrounded by a cooling medium, and in the interior of the pipes plungers are provided which have a somewhat smaller diameter than the inner wall of the pipes so as to form a slot-like passage along the inner wall of each pipe. The plungers are moved up and down through the pipes. The cooler is especially adapted for promoting crystallization by a rapid drop of temperature.

Abstract: A built-in oil cooler, comprising an outer tube and an inner tube, the latter tube is provided with a plurality of dent and projection portions alternately formed on its surface in axial direction thereof. Said inner tube is inserted in said outer tube to keep its outside face having no dent portion in contact with inside face of said outer tube, forming oil space between both of said tubes. Oil within said oil space flows zigzag to assure very good heat transfer rate.

Abstract: The present invention constitutes an electrical mounting and conduction means having a support element having a generally U-shaped interior surface, the base of the exterior of the support element being in thermal contact with a heat dissipating surface; a carrier element having a generally U-shaped exteriorsurface, the surface having a cross-section of smaller dimension than that of the U-shaped surface of the support element, the carrier element being nestable within the support element; and locking means removably securable to adjacent arm members of each of the support and carrier elements for maintaining the support and carrier elements in selective securement to each other.

Abstract: A heat exchanger for cooling system compressed air dehumidifiers includes an inner body forming a dehumidifying passage provided with a cooler, an outer body surrounding the inner body and forming a precooling passage along the outer periphery of the inner body, an air supply port opened in the outer body through which compressed air is led into the precooling passage from one end thereof, a communicating hole opened in the inner body to guide the air led into the precooling passage out through its other end into the dehumidifying passage through one end thereof, and a plurality of heat transmitting pipes extending through the precooling passage in order to form an air-flow passage which guides the compressed air out of the other end of the dehumidifying passage to an air discharge port provided in the outer body.

Abstract: An improved conduction cooled module of the type having at least one chip mounted on a substrate and having a housing surrounding the chips and sealed to the substrate. The housing having cylinders therein opposite the chips for containing pistons which are resiliently urged against the chip surface. Each piston has an opening extending from the top to the bottom surface and has at least one circumferential groove located in the outer wall of the piston. The opening and circumferential grooves are preloaded with a low melt point heat conductive material which is reflowed after assembly into the module to fill the interfaces formed between the piston and chip and the piston and cylinder. Grooves are located in the piston walls forming the interfaces which facilitate the flow of the molten material into the interfaces.

Abstract: A motor-containing device, particularly a submersible pump of the type including a sealed housing and motor mounted within the housing, includes a heat conducting filler material disposed in the gap between the motor and internal surface of the housing walls to improve the transfer of motor-generated heat from the motor to the housing walls. The filler material is such that it can be disposed in the gap in an initial form or state without concern for matching the exact dimensions of the gap and subsequently transformed while in the gap to provide a layer that fills the gap and provides a path for heat conduction to the housing walls. In one form, the filler material comprises a high memory thermoplastic that is mechanically prestretched into relatively thin sheet form, added to the gap during assembly of the pump, and then expanded in the gap by the application of heat thereto. In another form, the filler material comprises a thermoplastic material exhibiting high thermal expansion.

Abstract: Apparatus for reducing the heat flux in a localized area of a heat exchange tube, by placing a sleeve inside of the tube, creating a gap, or dead space, which fills with stagnant water, between the sleeve and inner tube wall. This reduced heat transfer will considerably reduce or prevent steaming on the outer side of the tube, thereby minimizing or preventing any solids from separating out at this location.

Abstract: A heat exchanger having one or more cooling cores connected between an inlet manifold tank and an outlet manifold tank is provided with a resilient element for mounting the cooling cores to the manifold tanks and sealing the connection therebetween. The resilient mounting and sealing element is formed so as to have a strip portion with at least one opening formed therein to receive the tube of a cooling core and a raised lip portion around the strip portion to provide a damped soft mount. The resilient element also includes a grommet portion around the opening which deforms to provide a liquid or fluid-tight seal between the outside of cooling core tubes and the inside of the manifold tank bores which are adapted to receive the tubes.

Abstract: The invention provides an elastic interface between a cooler dewar and an electronic cold finger which utilizes multitudinous conduction paths consisting of specialized bent fibers.

Abstract: An air cooled condenser installation comprising a first group of heat exchange elements including a plurality of rows of upright tubes impinged by a stream of cooling air and connected at upper and lower open ends by an upper manifold respectively, a lower collecting chamber to each other, and a steam conduit communcating with the upper manifold so that the steam flows in downward direction through the tubes and partly condenses therein with the condensate flowing in the same direction, and a second group of heat exchange elements including a second plurality of upright tubes impinged by a second stream of cooling air and connected at upper and lower open ends respectively by an upper chamber and a lower chamber, and a conduit connecting said lower collecting chamber of said first group of heat exchange elements with the lower chamber of the second group of heat exchange elements so that steam which has not been condensed in the first group of heat exchange elements will flow in upward direction through the s

Abstract: A device for cooling a multiplicity of solid state components which are attached to a printed circuit board comprises a formed profile member of high thermal conductivity material having a pair of longitudinally connected sides which form a geometrically shaped channel extending along its entire length for dissipation of thermal energy away from the components. The sides of the device are formed to provide a resilient springlike characteristic for frictionally engaging and holding the device in intimate contact with the surfaces of the solid state components to be cooled. This same characteristic facilitates manual installation and removal of the cooling device without the need for or use of special tools.

Abstract: A collector for radiant heat energy is disclosed, containing a radiation-absorbing heat-conducting panel in thermal contact with a series of "riser" tubes, through which a working fluid flows, thereby carrying away the radiant heat incident on the panel and absorbed by the fluid. A pair of larger diameter "header" pipes are connected to opposite ends of the riser tubes, providing access for the working fluid to and from the risers, and conducting the fluid to the pump driving the fluid motion and to the thermal "load" or object desired to be heated. Each riser tube intersects and passes through the interior of each header pipe, and the short end of the riser tube emerging from the opposite side of the header pipe is sealed by means of a cap which may be removed to facilitate cleaning of the riser tubes. Fluid passes between the risers and headers through a series of "metering holes" which are drilled through the walls of the riser tubes and located in the interior of the header pipes.

Abstract: A plurality of electronic circuit cards are edge mounted in heat transfer lation to a pair of spaced parallel card mounting plates extending from a bulkhead of an underwater instrumentation vehicle hull having a tubular cover section adapted to be moved into and out of covering relation to the cards and mounting plates. Spring biased slip plates provide heat transfer paths from the mounting plates to the cover section for dissipation to ambient water.

Abstract: A plate type condenser comprising a plurality of heat transmitting plates which are assembled in side-by-side contacted relation and enclosed in a container or shell, with a gasket disposed between adjacent heat transmitting plates in such a manner that suitably opened steam passages and closed cooling liquid passages are alternately defined in the internal clearances of the plate assembly. The plate type condenser is constructed to improve the heat transmitting performance in that the pressure loss of steam at the steam inlet opening in the side-by-side contacted plates is reduced and the gaskets for preventing leakage of cooling liquid are fixed; that short pass between the plates and the shell is prevented to limit the flow of steam to a given direction; and that the influences of uncondensable gases contained in the steam on the heat transmitting performance of the condenser are minimized with due consideration given thereto.

Abstract: A cooling system for rejecting waste heat consists of a cooling tower incorporating a plurality of coolant tubes provided with cooling fins and each having a plurality of cooling channels therein, means for directing a heat exchange fluid from the power plant through less than the total number of cooling channels to cool the heat exchange fluid under normal ambient temperature conditions, means for directing water through the remaining cooling channels whenever the ambient temperature rises above the temperature at which dry cooling of the heat exchange fluid is sufficient and means for cooling the water.

Abstract: A heat exchanger having a desired system of tubular passageways for a heat exchange medium defining opposed headers connected by connecting portions of said passageways extending therebetween, said passageways having entry and exit portions extending from said headers to provide ingress and egress openings for said heat exchange medium, wherein said tubular passageways comprise a plurality of island-like distentions connected by a plurality of tubular channels passing therebetween, said tubular channels positioned with their longitudinal axes at an angle to both the longitudinal and transverse dimensions of said panel, said distentions and tubular channels serving to enhance resistance to bending under mechanical stress and reduce the incidence of failure at fluid temperature near or at their freezing point.

Abstract: A heat exchanger assembly comprising a stacked array of heat exchange channel elements, having first fluid entrance and exit faces at opposite ends of the array. The improved headering arrangement includes sealing members each having a bearing surface with a generally corrugated contour which is bonded to the correspondingly contoured edge walls of the channel elements along a side of the stacked array and header tank means joined to the sealing members so as to leak-tightly enclose the associated face of the stacked array of heat exchange channel elements.

Abstract: A tube sheet construction for heat exchangers, particularly those of the type which utilize immiscible fluid heat exchange media, is formed with a tube sheet base plate and with a plurality of heat exchange tubes extending along at least a portion of their lengths in sealed fluid-tight engagement through the tube sheet base plate. The base plate is provided with a series of internal ducts extending in flow communication with the exterior of the tubes at the portion of the length thereof in sealed engagement with the base plate. The ducts are in flow communication with the exterior of the base plate and permit leaking fluid heat exchange media to be detected and exhausted from the heat exchanger. The tube ends extend beyond the base plate and a tube sheet cover plate extends over the base plate and is rigidly connected thereto with the cover plate having the projecting ends of the tubes fixed thereto by welding or the like.

Abstract: Heat exchange apparatus including a toroidal-type radiator having radially extending cooling air passage-ways formed through the core thereof, a rotary fan positioned radially inwardly of the radiator core, fan shroud means shaped and positioned with respect to the radiator core and the blades of the fan whereby the air stream induced by the fan during operation has a major component in a radial direction, and an auxiliary radiator structure axially spaced from the rotary fan.

Abstract: A heat exchanger for refrigerator evaporators of the type consisting of helically coiled refrigerant-carrying tubing with radially inward extending fins formed along the length of the coiled tubing, with the air to be refrigerated directed across the axis of the coil turns. The coil turns are skewed from the helix angle to expose a greater proportion of the fins into the air flow path between the coil turns so as to increase the air flow contact with the fins. The skewing is created by relatively offsetting opposite portions of the coil turns along the air flow path across the helical coil to increase the obliqueness of a portion of each coil turn with respect to the direction of air flow.