Abstract: A conveyance vehicle for the transportation of a vessel to be evacuated includes a heat sink in the form of one or more heat pipes located adjacent a seal forming part of a gripper assembly. The heat sink inhibits degradation of the seal when subjected to elevated temperatures consequent to engaging the neck of the vessel to be evacuated.

Abstract: A thermal heating and cooling fan device for providing warm or cool air from the circulation of warm or cool fluid therethrough. The device includes a housing having a pair of opposite open ends. A first transfer coil is provided in the interior of the housing. Intake and output conduits are fluidly connected to opposite ends of the first transfer coil. The distal ends of the intake and output conduits are fluidly connectable to a fluid source. The distal end of the intake conduit is designed for drawing fluid into the intake conduit and the distal end of the output conduit is designed for discharging fluid from the output conduit. A pump is provided for pumping fluid from the input conduit through the first transfer coil to the output conduit. A fan is provided in the housing for moving air from one open end of the housing through the interior of the housing over the first transfer coil to another open end of the housing.

Abstract: The present invention relates to a deodorizing system for reducing the size of a facility and realizing the thermal efficiency much higher than the prior art, wherein a deodorizing furnace 1 is connected with thermal equipment 8 which uses a heated gas current as a heat source through an out-of-furnace circulating path 4 in order to circulate combustion exhaust gas in a deodorizing furnace 2 which has been used for incineration or thermal decomposition of odor components. When the combustion exhaust gas passes through a regenerative bed 5A or 5B on an intake side of the out-of-furnace circulating path, a part of sensible heat of the combustion exhaust gas is recovered in the regenerative bed 5A or 5B and the combustion exhaust gas is turned into a heated gas current that can be used in the thermal equipment 8 to be then supplied to the thermal equipment 8.

Abstract: A directional heat exchanger system dissipates heat generated by components contained within a thermally insulated antenna mounted atop a periscope be. A first wall of thermally conductive material has a first face and a second face with the first face being shaped to substantially contact an internal portion of the periscope tube. A plurality of ribs made from thermally conductive material are fixedly coupled to the second face. A second wall of thermally conductive material opposes the second face of the first wall and is in tangential contact with the ribs to form a fluid seal therewith. At least one channel is formed between the first and second walls. The end of each rib is offset from the end of adjacent ribs such that the channel defines a flow path having a first end and a second end. The components generating heat are thermally coupled to a heat pipe positioned partially in the antenna and partially in the periscope tube.

Abstract: A process and apparatus for heating gas in which a flow rate D0 of a warm fluid is caused in an input line, connected at its upstream portion to a source of warm fluid and at its downstream portion to the inlet of one of the passages of a heat exchanger; a portion of the flow D0 is diverted before it reaches the inlet of the first passage, into a branch line connected at its upstream portion to a so-called primary point of the inlet line located between the source of warm fluid and the inlet of the first passage; the gas to be heated is caused to circulate in another passage of the exchanger, so as to effect heat exchange between the gas to be heated and the warm fluid, thereby to obtain at the outlet of the second passage a warmed gas, and at the outlet of the first passage, a cooled warm fluid; the temperature of the warmed gas is controlled by the aid of a flow rate regulating valve located in a selected position in the inlet or outlet line.

Abstract: A combined power steering hydraulic fluid reservoir and cooling unit (12, 112) includes a housing (14, 114) having a reservoir tank (16, 116) for receiving and collecting hydraulic fluid from a power steering gear (18) and holding the hydraulic fluid in readiness for supply to a hydraulic pump (20). The housing has a heat exchanger (22, 122) with a cooling liquid flow path therethrough in heat transfer relation with the hydraulic fluid, eliminating a hydraulic fluid cooler otherwise connected in series between the power steering gear and the reservoir tank, and eliminating two extra hose connections therefor.

Abstract: A machine for warming and spraying paint comprising a water cooled internal combustion engine, a pump for pumping the paint, a power transfer means linking the engine drive linkage to the pump drive linkage, a heat exchange chamber having an interior channel therethrough enabling heated liquid coolant and paint introduced into the heat exchange chamber to flow therethrough and exchange heat without commingling of the two fluids, a liquid coolant transfer means for carrying the liquid coolant in a circuit path including the internal combustion engine radiator, the internal combustion engine, and the heat exchange chamber, and a paint transfer means allowing paint to travel through an open ended path including the pump and the heat exchange chamber, the paint transfer means allowing the paint to be pumped by the internal combustion engine and the pump and to be simultaneously warmed by heat transferred from the liquid coolant to the paint within the heat exchange chamber.

Abstract: This patent discloses a modular environmental control system for small cleanroom enclosures ("mini-enclosures"). Small environmental control units ("ECUs") are mounted on top of individual mini-enclosures, as near as possible to the process tool within the enclosure. Each ECU has the capability of controlling temperature, humidity, and airflow rate delivered into the enclosure. Temperature is adjusted by first cooling the air inside the ECU followed by reheating it to a selected temperature. The cooling capability is not generated by individual ECUs. Instead, a remote fluid cooling unit supplies chilled fluid to each ECU, which is circulated internally to cool the air. The same remote unit services different ECUs at the same time.

Abstract: A heat exchanger for a furnace flue comprises an outer flue jacket having a plurality of axially parallel exhaust gas passages therethrough. The exhaust gas passage tubes are sealed from the remainder of the interior volume of the jacket by a baffle plate at each end thereof. The outer flue jacket is preferably of the same diameter as the flue pipe in the remainder of the system, e. g., six or eight inches, in order to preclude any requirement for adapters. An inlet pipe and an outlet pipe are affixed to opposite ends of the jacket, at some angle (e. g., normal) thereto. Exhaust gases from the furnace pass through the plurality of pipes within the outer jacket, heating the pipes. Airflow within the jacket and outside the pipes, is warmed by contact with the pipes, and flows from the outlet end to be used for warming the interior of the structure in which the unit is installed.

Abstract: A heat exchange system for cooling a coolant is provided having a pump coupled to the motor to pump coolant, a radiator for cooling the coolant, and a resilient hollow reservoir for holding coolant in the form of a planar base portion and an annular portion integrally coupled to and extending upwards from the base portion.

Abstract: An apparatus for cooling an axle assembly includes a housing defining a chamber having a first fluid contained therein. The apparatus also includes a conduit located within the chamber. The apparatus further includes a fluid source in fluid communication with the conduit, wherein (1) a second fluid located within the fluid source is advanced through the conduit, and (2) the first fluid located within the housing does not intermix with the second fluid being advanced through the conduit. A method of cooling a differential assembly is also disclosed.

Abstract: The invention is directed to apparatus and a method for controlling temperature of lubricant contained in, but not limited to, a differential housing. The apparatus includes a cover plate having an air duct arrangement that includes an intake manifold, a discharge and at least one air conduit that extends between the intake manifold and the discharge. The air conduit communicates with the outside surface of the cover plate, and a temperature responsive fan selectively forces air into the manifold to create an airflow along the air conduit. Heat is transferred from the cover plate surface to the air as the airflow moves through the air conduit and the heated air is expelled at the discharge to lower and control lubricant temperature.

Abstract: The hydraulic pressure to be supplied to a hydraulic actuator mounted on a vehicle, such as a hydraulic cylinder for vehicle height control, is arranged to be generated by utilizing a waste heat of a power source such as an engine of the vehicle or the like. There are provided an oil chamber to be connected to a hydraulic actuator, a pressurizing chamber containing therein, in a sealed manner, a medium which varies between a gaseous state and a liquid state, and a heating device which heats and evaporates the medium inside the pressurizing chamber and through which cooling water for cooling the power source to be mounted on the vehicle flows. The hydraulic pressure is generated by compressing the oil chamber by a vapor pressure of the medium inside the pressurizing chamber. In case the hydraulic actuator is a hydraulic cylinder for a vehicle height control, there is provided a flow control valve which controls the amount of supply of the cooling water to the heating device depending on the vehicle height.

Abstract: An aftercooler apparatus condenses vapor in untreated gas discharged from a compressor of a gas drying system. The apparatus includes a radiator, a bypass line and a bypass valve. The radiator features a first inlet, a second inlet and an outlet. The first inlet connects to the compressor from which it receives the untreated gas. The outlet connects to the next component in the gas drying system. The radiator condenses the vapor suspended in the untreated gas and passes aftercooled gas resulting therefrom via its outlet to the next component. The bypass line, through which the untreated gas may flow, connects at one end between the compressor and the first inlet and at another end to the second inlet. The bypass valve senses the difference in pressure between the first inlet and the outlet. The bypass valve also controls the flow of the untreated gas in response to the difference in pressure.

Abstract: A high efficiency thermal interposer comprising a first hollow disk and second hollow disk, held together by thermally isolating fasteners. The fasteners keep the disks from touching one another. In an illustrative embodiment of the invention, the first disk is the low temperature disk portion and the second disk is the high temperature disk portion of the heat shield. Furthermore, according to a preferred embodiment of the invention, the space between the disks is filled with small thermally conductive particles (e.g., stainless steel spheres) which are in thermal contact with the high temperature disk; but which are not in contact with the low temperature disk. The thermal interposer/heat shield includes means for introducing cold jets of air into the cavity containing the particles, means for circulating the air therebetween, and means through which the air can exit from the cavity to carry away the heat picked up from the particles inside the cavity.

Abstract: A heat exchange jacket for attachment to an external surface of a pump motor having a bottom surface with a shape conforming to a curvature of the housing of the pump motor, a top surface joined to the bottom surface so as to define a heat exchange chamber therebetween, a fluid inlet connected to the top surface and communicating with the chamber, and a fluid outlet communicating with the chamber. The surface of the heat exchange jacket are formed of a polymeric material. The fluid outlet is positioned below the fluid inlet. The bottom surface has a curved shape with the top surface extending in concentric relationship therewith. The fluid inlet is positioned above the top surface and is located between a forward end and a rearward end of the top surface. The fluid outlet includes a first fluid outlet located on one side adjacent to the bottom of the heat exchange jacket and a second fluid outlet positioned on an opposite side of the heat exchange jacket adjacent to a bottom of the jacket.

Abstract: A heat exchanging device absorbs heat from a heat source, in the form of waste fluid, and exchanges the absorbed heat to an object which benefits from warming. The heat exchanging device is coupled to a first structure, the combination of the heat exchanging device and the first structure forming a passage for the waste fluid to flow. Within the passage, absorption fins absorb heat from the waste fluid. The device is also engaged with a second structure which contains the object which benefits from warming. The heat absorb by the fins and the remaining body of the heat exchanging device is exchanged to the second structure, which in turn exchanges the heat to the object contained within the second structure. The heat exchanging device exchanges the heat from the waste fluid to the object in a simple and cost effective manner.

Abstract: An ice dam preventing or melting system relocates warm air from the interior of a building to the eaves of a roof allowing the melting of snow and ice and/or preventing the freezing of ice along the roof edge. The system uses the warm air from the interior of the building by pumping the warm air from the interior of the building to a heat conductive edge member. The edge member dissipates the heat from the warm air to the accumulated ice and snow, causing the ice and snow to melt and leading any runoff water into the gutter. The system utilizes an edge member disposed to be secured to the roof edge which is configured to avoid water and ice backup onto any portions thereof. The system provides an aesthetically appealing addition to any new or existing building.

Abstract: A self-contained camera enclosure provides protection from intermittent exposure to high temperatures and fire. The protection is provided without connection to electricity or water, and is practical for use in remote areas. Protection is provided by a heat-reflecting outer box containing a liner of insulating material and a frozen-liquid cooling system. A double-pane window using an outer heat-resistant glass and an inner hot mirror allow visible light to enter the enclosed camera while simultaneously blocking heat transmission. To accommodate remote camera equipment, a four-ply thermal insulation is used to protect the cable extending from the enclosure. The enclosure can accommodate different models and types of camera equipment.

Abstract: An extraction machine of this invention comprises a main housing. A vacuum pump in the main housing operates to create a vacuum to extract liquid from the surface. A motor in the main housing drives the vacuum pump, the vacuum pump having an exhaust. An exhaust duct conducts exhaust air from the exhaust of the vacuum pump to an opening in the main housing for exhaust to the environment. A constriction in the exhaust duct reduces the pressure of exhaust air flowing through the exhaust duct from a first pressure upstream from the constriction to a second lower pressure in a low pressure zone adjacent the constriction. A compartment has an inlet for entry of ambient air into the compartment and an outlet for exit of air from the compartment. A second motor is located within the compartment. A cooling duct has an inlet communicating with the outlet of the compartment and an outlet communicating with the low pressure zone in the exhaust duct.

Abstract: A heated therapeutic spa which comprises a spa tub containing water and having plumbing attached thereto, the tub having a wall which is a relatively good thermal conductor; a thermally efficient, insulating container comprising a load bearing outer wall, and a bottom wall; a plenum chamber formed between the tub wall and the container wall and extending about the tub wall; a motor and pump supplying circulating water to the tub and extending in the plenum chamber; a fan located to circulate air that converts heat from the motor into hot air exhausted into the plenum chamber; the fan operating to force the hot exhaust air to circulate around the tub wall, whereby the temperature of the air drops in flowing about the tub wall before returning to the motor.

Abstract: A heat recovery device is disclosed which is adapted for use in the drain conduit of standard shower installations having a hot water line, a cold water line, means for mixing water from both lines to deliver water at a suitable temperature to a shower head, and a drain conduit for disposing of waste water passing through the shower installation, the heat recovery device transferring heat from the waste water to cold water flowing to the cold water line. The heat recovery device has a first conduit connected into the drain conduit of the shower installation, and a second conduit connected into the cold water line leading into the shower installation and either wrapped around or inserted within the first conduit so that the second conduit is in operative heat transfer relationship with warm waste water passing through the first conduit, so that the incoming cold water is preheated by heat recovered from the waste water and transferred to the cold water.

Abstract: Hydrogen coolers are provided with a cooler frame; cooling tubes positioned within the cooler frame; a tube bundle: an inlet chamber adjacent to an inlet end of the tube bundle; a reverse chamber adjacent to the reverse end of the tube bundle; and a support bracket adapted to be mounted on a frame of an electric generator. The support bracket defines an opening sized to receive inlet and outlet connections to the inlet chamber. The support bracket includes a shoulder for supporting the inlet chamber. This invention also encompasses the method of assembling these coolers in an electric generator.

Abstract: Heat transfer between a body and its surrounding fluidous environment is reduced by placing at least one baffle-insulator adjacent to the body, such that the baffle-insulator which has a thermal conductivity of less than about 5 watts/meter-.degree.K, disturbs, modifies, and/or weakens fluidous environment flow about the body, thus reducing heat transfer between the body and its environment.

Abstract: Natural gas pipelines typically employ an underground large diameter pipe, on the order of about 42 inches in diameter, to conduct natural gas from a gas field to a place of consumption or to a shipping terminal. Compressor stations disposed along the pipeline compress the gas to maintain an acceptable rate of flow along the line. The compressing process heats the gas in the pipeline, and the heat is gradually lost to the ground along the length of the line. The present invention discloses a system and method for the recovery of such waste heat from a pipeline in which one or more recovery tubes or coils disposed underground, above or alongside the pipeline, carries a heat transfer fluid which collects the waste heat from the pipeline itself by a radiant transfer mechanism. The system may include a manifold and pumping system to utilize the heated heat transfer fluid to heat greenhouses, fish ponds, houses, and other facilities.

Abstract: A system for achieving a high degree of damping in beams and structures made from beam-type elements such as machine tools and automation equipment, although the invention can apply to any type of structure which requires damping and/or temperature control. The invention is also concerned with utilization of the same structure to obtain a high degree of temperature control in some cases. A high degree of damping is obtained by making the beam hollow and inserting one or more structural members inside the beam along its approximate length, and then filling the annulus between the axial internal members and the external surrounding structure with a viscoelastic energy absorbing material such that the inner structures and the outer structure are fully linked in shear by the viscoelastic material so that any bending in the beams results in relative shear displacement between the beams which shears the viscoelastic material and thereby dissipates vibration energy.

Abstract: This invention for use with a water-using system is directed to a heat recovery and storage device adapted to recover heat from warm waste liquid and transfer it to cooler supply water where the flows of both waste liquid and supply water are intermittent and not necessarily contemporaneous, and to store the warmed supply water until required for use.

Abstract: The present invention is an apparatus and system to recover heat from wastewater in a new or existing building comprising a convector heat exchanger with thermal storage that accepts wastewater of any temperature, an in-line separator to direct large solids away from the heat exchanger, a process to create turbulent flow in the tubing from which the heat exchanger is made, an automatically switched vibration base to improve heat transfer, an automatic flush system for the wastewater heat exchanger and a method of installation in slab-built buildings.

Abstract: An improved system and apparatus is provided for cooling the energy source used in powering various types of semiconductor processing devices. The improved cooling system uses a solenoid valve which is electrically controlled by the processing equipment during times in which the energy source is on, or during times in which the user manually or automatically programs valve activation. The solenoid valve can be easily and readily retrofitted to any pre-existing processing device which uses an energy source and which can be electrically activated by the processing device or a user interface panel. An activated solenoid valve allows coolant to flow through the energy source in order to maintain optimal performing temperature of the energy source. An inactive valve will reroute coolant away from the energy source to ensure longevity of the system and to minimize condensation upon the energy source electrical components.

Abstract: A water cooler and dispenser employs a ceramic crock containing a thermoelectric unit and an upwardly directed chilling probe extending into a chilling tank. The chilling probe is in heat-conducting relation to a heat sink, underneath which is a circulating fan. A circulating base is made up of a series of support fins arranged in a radial fashion in the bottom of the crock having a specialized arrangement of inlet and outlet ports. The air is circulated upwardly across the heat sink then circulated downwardly and expelled from the crock. In a conventional manner, water is drawn from the lower end of the chilling tank through a spigot extending to the exterior of the crock.

Abstract: A high efficiency thermal interposer comprising a first hollow disk and second hollow disk, held together by thermally isolating fasteners. The fasteners keep the disks from touching one another. In an illustrative embodiment of the invention, the first disk is the low temperature disk portion and the second disk is the high temperature disk portion of the heat shield. Furthermore, according to a preferred embodiment of the invention, the space between the disks is filled with small thermally conductive particles (e.g., stainless steel spheres) which are in thermal contact with the high temperature disk; but which are not in contact with the low temperature disk. The thermal interposer/heat shield includes means for introducing cold jets of air into the cavity containing the particles, means for circulating the air therebetween, and means through which the air can exit from the cavity to carry away the heat picked up from the particles inside the cavity.

Abstract: A power electronics package includes a heat exchanger having a plurality of faces, a plurality of semiconductor devices mounted on the plurality of faces and at least one bus structure for interconnecting electrodes of the semiconductor devices. The package is enclosed by a cover and structure is provided to connect other electrodes of the semiconductor devices to an external circuit.

Abstract: A power fluid heating system according to this invention includes a heating apparatus positioned within a power fluid container having a first power fluid pickup conduit, a second power fluid pickup conduit positioned within the first power fluid pickup conduit, and a heat exchanger for directly heating both the power fluid in the container and the power fluid in the first and second pickup conduits. The power fluid heating system also includes a water separating device. The water separating device includes a power fluid reservoir and a heat exchanger inside the reservoir. The power fluid heating system also includes a heat exchanger having heat exchange fluid medium passages for the flow of a heatable fluid through the passages so that the heated power fluid exiting the water separating device provides heat transfer to the heatable fluid.

Abstract: An apparatus for preventing thermal deformation of a machine tool has a feed unit which heats a heat transfer fluid and pumps it out to a heat exchanging portion. The heat exchanging portion has at least one heat exchanging unit capable of being expanded and shrunk in accordance with the heat transfer fluid therein. The heat exchanging unit is arranged in a prescribed portion of a machine tool. The portion of the machine tool is heated by the heat exchanging unit arranged therein, whereby thermal distribution of the machine tool is equalized and heat deformation thereof is suppressed. The heat transfer fluid passed through the heat exchanging unit is recovered by a discharging portion and fed back to the feed unit. The heat exchanging unit is maintained in an expanded state by controlling the flow rate of the fluid passing therethrough by a flow control valve, so that heat exchanging operation can be carried out effectively.

Abstract: A method of cooling the coil of an electromagnetic riveter includes bringing a transducer into contact with the coil and transferring heat from the coil to the transducer by conduction. The heat is removed from the transducer by unconditioned plant air blown across a set of fins in the sides of the transducer.

Abstract: A liquid cooled cooling device wherein occurrence of vibrations is controlled, the power for feeding water is lowered, and further, temperature variations around a heat generating section are prevented.

Abstract: A heat-dissipating extender is provided in a joint between a sealed-gas burner having a burner fitting and a gas supply tube having a tube fitting. The heat-dissipating extender includes a body having a first end, a second end, and an interior passage extending between the first end and the second end for passage of the gas from the tube to the burner. The first end has a first fitting interfitting with the burner fitting to provide a seal against leakage of fluid pressure. The second end has a second fitting interfitting with the tube fitting to provide a seal against leakage of fluid pressure. The body is adapted for dissipating heat to provide a substantial temperature differential between the first end and the second end when heat is applied to the burner fitting at the first end during operation of the burner so that the tube connection at the second end remains sealed.

Abstract: A passive injector including, a flow generator having a first inlet for gas or vapor at a first pressure and an outlet for gas or vapor, a mixing region having an inlet for the gas or vapor leaving the flow generator at supersonic velocity and a second inlet for a liquid at a second pressure, wherein liquid is incorporated into the flow of gas or vapor while maintaining supersonic velocity and a primary flow tube section aligned with an outlet of the mixing region and having an inlet and an injector outlet, the inlet of the flow tube being preceded by a gap surrounded by a cavity, wherein the flow velocity of the mixture is supersonic at the inlet of the primary flow tube section and the supersonic flow changes to subsonic flow within the primary flow tube section.

Abstract: The purpose of regenerative heat exchangers is to transfer the heat from one step or process of a cycle or system to an earlier step or process in the cycle or system such that the transferred heat is usefully absorbed rather than being discarded. The gas being heated is moved in a counter flow relative to the hotter fluid while being trapped between moving partitions (vanes) such that the gas so trapped is heated with a fixed volume with an increase in pressure as well as temperature. In some embodiments, the hotter as well as the cooler fluid is moved while trapped between moving partitions (vanes) so, as the cooler fluid being heated is thermally pressurized, the hotter fluid being cooled with a fixed volume is thermally pressurized. Materials and design details are selected to enhance the heat transfer between the two streams.

Abstract: A freeze-thawing tank assembly includes an upright vessel having a hollow defined therein for accommodating therein a quantity of fluid medium to be treated. The vessel is closed at an upper end by a lid and at a lower end by a normally closed discharge valve. A plurality of double-walled structures are accommodated within the hollow of the vessel in equally spaced and parallel relation with each other. Each of the double-walled structures has a fluid passage defined therein for the flow of a heat-exchanging fluid medium and also has a fluid inlet and outlet communicated with the fluid passage. The fluid medium to be treated may be alternately frozen and thawed by passing the heat-exchanging medium through the fluid passages in the double-walled structures.

Abstract: This invention provides a package-type oil-cooled air compressor in which the housing is divided into two chambers, in one of which, a first chamber, are located the compressor unit, motor used to drive the compressor unit, air intake filter and intake regulator valve connected to the compressor unit, and in the other of which, a second chamber, are located the oil cooler and sirocco fan. An air duct connects the two chambers. Air outlets are formed in each of the chambers and an air inlet is formed in the second chamber. Air is introduced through the rotation of the sirocco fan into the second chamber via the air inlet. A portion of this air is directed into the first chamber via the air duct where a part is used to supply the compressor unit and the remainder flows over the components located in the first chamber to cool them and leaves via the outlet formed in the first chamber.

Abstract: Conduit structure is in pneumatic communication with a dwelling furnace of a forced hot-air variety to direct such forced hot air through a first conduit, through a control valve, and subsequently to a second conduit that is directed to a downspout that is in turn secured to a manifold positioned onto the gutter trough of the dwelling and to the bottom wall thereof.

Abstract: A heat exchanger includes a long, thin-shelled heat transfer tube closed at one end and secured at the other end to a manifold collar which has an exhaust tube extending from the center thereof and a manifold housing extending from the collar side opposite that from which the heat transfer tube extends. A plurality of longitudinally extending distributor tubes extend from the heat transfer tube through the collar in fluid communication with a sealed manifold chamber and a plurality of orifices spaced at longitudinal increments along the length of each distributor tube permits the wind mass in the manifold chamber to exit the orifices as high speed, free-standing gas jets for impingement against the interior of the heat transfer tube so that the heat transfer tube acts either as a heat source or as a heat sink.

Abstract: Heat exchanger, particularly for use as a rack evaporator in refrigerators or freezers, and process for manufacturing it. The heat exchanger is composed of a plurality of stacked shelves and comprises, for each shelf, at least one coil constituted by a tubular body extending along a path in which bends alternate with straight and substantially mutually co-planar portions, and a supporting and/or heat-exchange enhancing structure. In the heat exchanger according to the invention, the coils of two contiguous shelves are mutually connected by a tubular portion arranged transversely with respect to the direction along which the various shelves are stacked, starting from one corner of the overlying shelf down to one of the corners contiguous to the corresponding corner of the underlying shelf. The supporting and/or heat-exchange enhancing structure is disconnected from the branches of the coils joined to the tubular portion that mutually connects two coils in two different shelves.

Abstract: A control system for effecting ultra-precision temperature control for a controlled system having large load fluctuations or including a dead time component. A control unit (5) instructs a high-precision PID temperature controller (10) to renew and correct a control target value T.sub.0,NEW for the supply fluid temperature T.sub.0 only by a temperature difference .DELTA.T=T.sub.C -T.sub.2 between a set value T.sub.C for the return fluid temperature T.sub.2 of a heat transfer fluid and the actually controlled return fluid temperature T.sub.2. In response to the instruction, the high-precision PID temperature controller (10) controls the heating power of a heater (17) for heating control through a constant-power thyristor phase controller (16). The heater (17) heats the heat transfer fluid and sends it to a machining apparatus (1) through a closed damping tank (21). The heat transfer fluid exchanges heat with the machining apparatus (1) and is then returned to a precooling means.

Abstract: A process for the air conditioning of a weaving machine includes generating, for the weaving machine, at least one conditioning air stream spaced from a warp of the weaving machine and directed towards the warp, and distributing the conditioning air stream in stages so as to form a downwardly directed displacement-type flow towards threads of the warp. The displacement-type flow is a non-turbulent, uniform flow over a cross-sectional profile of the flow.

Abstract: An apparatus for cooling an engine or component in a vehicle which employs an air conditioning unit such that the condensate which naturally forms on the evaporator during air conditioner unit operation is collected and directed to the transmission pan to enhance cooling.

Abstract: A microencapsulated phase change material comprising a microcapsule wall former encapsulating a phase change material as an internal phase, said phase change material being inherently resistant or a flame retardant being admixed with said phase change material.

Abstract: An improved heat exchanger containing a hollow cylindrical pipe casing having a plurality of apertures formed on the surface. A lower elbow pipe is secured to a stove outlet pipe and to the hollow cylindrical pipe casing. The lower elbow pipe functions to receive hot air discharged from a stove. A plurality of receiving elbow pipes are positioned within the apertures that are formed in the hollow cylindrical pipe casing that function to receive cool air from an outside source. A plurality of inner U-shaped pipes are positioned within the hollow cylindrical pipe casing and are secured to a corresponding receiving elbow pipe. Each inner U-shaped pipes is positioned within one of the plurality of apertures that is formed in the hollow cylindrical pipe casing. A plurality of outlet pipes are also contained in the device and are secured to a one of the corresponding plurality of inner U-shaped pipes. Each outlet pipes functions to release warmed air into a room.

Abstract: Cooling liquid flowing through cooling-liquid passages cools in heat-transmission manner an inner layer on an inner surface of an impermeable intermediate layer and is directed through a piping to an interface between the intermediate and outer layers, whereby the porous outer layer is cooled by latent heat generated by evaporation of the cooling liquid infiltrated into the porous outer layer.