Abstract: Disclosed herein is a fanless high-efficiency cooling device that is applicable to electronic products having heat sources, such as plasma display panel (PDP) televisions, liquid crystal display (LCD) televisions, and liquid crystal display (LCD) monitors. The fanless high-efficiency cooling device using ion wind comprises a heat sink having a fixing part fixedly attached to a heat-generating part of an electronic product and a plurality of protrusions extending a predetermined height from a bottom surface of the fixing part, a cover that covers the upper part of the heat sink, at least one electric wire for generating ion wind between the corresponding protrusions when high voltage is applied to the electric wire, an electric wire-supporting member that supports both ends of the electric wire, and a power supply that connects a high-voltage terminal to the electric wire and connects a ground terminal to the heat sink to supply high voltage to the electric wire.

Abstract: The invention relates to a calender bowl which can be heated by means of a heating medium that is in a liquid or gaseous state of matter. The calender bowl comprises a roll body (1) that is provided with peripheral bores (4) and flange journals (2, 3) comprising supply and discharge conduits for the heating medium. Thermal insulating bushes (8) are mounted on the end areas of the peripheral bores. The heating medium flows through the peripheral bores. The aim of the invention is to adapt the heat transfer from said bores to the lateral surface of the roll body to the respective heat requirements in such a way that the harmful measured differences stay within limits so that the product is not impaired. To this end, adjusting devices are allocated to the flange journals for controllably turning and/or axially displacing the insulating bushes.

Abstract: An electrohydrodynamically enhanced heat transfer system (EHD) includes an electrode completely encapsulated in an insulating material and coupled to a power supply to generate an electric field between a heat transfer surface and the encapsulated electrode when energized for interacting with the heat exchange surface and the working media to reduce frost formation on the heat transfer surface and to enhance heat transfer. The power supply may be completely encapsulated and immersed into the working media. In order to reduce accumulation of condensed liquid onto the electrode, the surface of the insulating material of the encapsulated electrode is either covered with a water repellent, or heated a few degrees above the dew point temperature of the air surrounding the heat transfer surface. The encapsulated electrode can be energized by an AC or DC electric field through a controlling switch.

Abstract: A heat exchanger integrated into the transmission oil pan transfers heat from post-catalyst exhaust gases to the transmission oil. Inlet and outlet ducts route exhaust gas between the heat exchanger and an exhaust pipe located downstream of the catalyst. The exhaust pipe accommodates a control valve that diverts exhaust gas flow to the heat exchanger during the warm-up phase, or to the tailpipe during steady state operation. A control function is provided to monitor transmission oil temperature and engine operating conditions and to control actuation of the valve. The main input parameter to the control function is the transmission oil temperature.

Abstract: A tank for storing a cryo fuel in a vehicle with an internal storage container, an external container enveloping the internal container, and an electromagnetically switch selectable thermal bridge element which can produce or interrupt a heat conducting connection between the wall of the internal container and the wall of the external container. The thermal bridge element may be designed such that in the closed state a spatial contact area is formed between a receiving element of the thermal switch affixed to the internal container and an output element of the thermal switch affixed to the outer container. The receiving element may have a smaller thermal capacity and/or size than the output element. Either the thermal bridge or a second thermal bridge element may be adapted to cool the internal container.

Abstract: An electronic device has at least one component that is capable of generating a quantity of heat. The electronic device further has an air-moving device and an air duct. The air moving device is capable of creating a flow of air that removes a portion of the quantity of heat. The flow of air enters the air duct. The air duct has a restriction chamber that includes a venturi vent in which the flow of air into the duct and through the restriction chamber creates a new flow of air into the venturi vent. The new flow of air into the venturi vent does not pass over the at least one component in the electronic device.

Abstract: A high tension electrical equipment cooling structure for cooling batteries which supply electricity to the operating motor via an inverter, and the inverter using cooling air, and includes an equipment box for guiding cooling air introduced from a cooling air inlet port into a cooling air outlet port, and a fan for introducing cooling air from the cooling air inlet port. A shutter that includes an elastic material is disposed inside the intake duct. The shutter closes off the cooling air flow path, and when negative pressure is generated downstream of the shutter due to the operation of the fan, the shutter undergoes elastic deformation, and as a result, the cooling air flow path is opened.

Abstract: An electrode configuration for use in association with a heat transfer member provided in a thermal energy transfer system. Separate multiple electrical conductors are each received on a respective first surface alteration. Each of the multiple conductors is connected to a different terminal of a multiphase alternating power source so that an electric traveling wave moves in a longitudinal direction of the heat transfer member so as to induce pumping of at least the liquid phase in the longitudinal direction to thereby enhance the thermal energy transfer characteristics of the thermal energy transfer system. In a preferred embodiment, the aforementioned heat transfer members are provided inside of an outer conduit.

Abstract: An apparatus includes heat-generating structure disposed in an environment having an ambient pressure, and a cooling system for removing heat from the heat-generating structure. The cooling system includes a fluid coolant, structure which reduces a pressure of the coolant to a subambient pressure at which the coolant has a boiling temperature less than a temperature of the heat-generating structure; and structure which directs a flow of the liquid coolant at the subambient pressure so that it is brought into thermal communication with the heat-generating structure, the coolant then absorbing heat and changing to a vapor. A method for cooling heat-generating structure disposed in an environment having an ambient pressure includes providing a fluid coolant and reducing a pressure of the coolant to a subambient pressure at which the coolant has a boiling temperature less than a temperature of the heat-generating structure.

Abstract: The invention concerns a supply air terminal device (10) including side plates (12) and an air guiding part (13). A heat exchanger (14) is fitted in the device below a supply air chamber (11) for supply air in between air guiding parts (13) located on both sides of the central axis (Y1) of the device. In the device, the supply air chamber (11) includes nozzle apertures (12a1, 12a2, . . . , 12b1, 12b2 . . . ) to conduct fresh supply air into a side chamber (B1) and to induce a flow of circulated air (L2) from the room space through the heat exchanger (14) into the side chamber (B1). Using the heat exchanger (14) the circulated air may be either cooled or heated. The equipment includes a control device (15) for the induction ratio of the supply air flow (L1) and the circulated air flow (L2) for controlling in which ratio there is fresh air (L1) and circulated air (L2) in the combined air flow (L1+L2).

Abstract: A heat exchanger for both sensible and latent energy, enthalpy, has walls or plates that extend between two air streams that also permit and assist recirculation and filtration. The walls between air streams consist of a substrate with a coating on the substrate. The coating, in combination with the substrate material original porosity, is used to control final porosity and hydrophilic/oleophilic characteristics. By control of the pore size and surface material characteristics, there can be almost a total recirculation, a recirculation of only gases (filtering out solid particles), a transfer of only moisture and heat, or a transfer of only heat. The pore size and characteristics of the coating along the path of the air streams can be varied so that different types of exchange can be obtained along the path of the air streams.

Abstract: A thermal control device for controlling the temperature of a craft/spacecraft is an electrostatic switch causing a large change in apparent emissivity. A flexible covering has a high emissivity and makes close contact with the surface of the spacecraft when electrostatically attracted thereto, when the covering is out of contact, the spacecraft surface emissivity controls radiation. The device can operate with moderate levels of DC voltages. Application of voltage results in high emissivity while removal of voltage allows a separator to move the covering out of contact and thus results in low emissivity.

Abstract: A fluid flow distribution device (10) is provided for use in a heat exchanger (12) having multiple heat exchange units (14) that receive a fluid flow (18) from an fluid inlet (16). The device includes a plurality of tortuous flow paths (31) to direct distributed portions of the fluid flow (18) from the inlet (16) to the heat exchange units (14). Each tortuous flow path (31) is defined by a pair of flow chamber plates (24,26), and an orifice plate (28) sandwiched between the flow chamber plates (24,26). Each tortuous flow path (31) includes a series (34) of orifices (36) extending through the orifice plate (28), a first pattern (38) of first flow chambers (40) formed in one of the flow chamber plates (24,26) and aligned with sequential pairs of the orifices (36), and a second pattern (42) of second flow chambers (44) formed in the other of the flow chamber plates (24,26) and offset with respect to the first pattern (38) and the pairs of orifices (36).

Abstract: An air guide for a cooling tower that prevents the air discharged from the cooling tower from flowing back into the cooling tower, and facilitates smooth circulation of outside air inside the cooling tower. The air guide is coupled to a side surface of the cooling tower, and has a length corresponding to a width of the side surface. The air guide includes an air-inflow prevention wall having a curved cross section extending downwardly and outwardly. The air guide further includes an air inlet portion defined at a lower end of the air-inflow prevention wall, and an extension portion extending from the lower end of the air-inflow prevention wall toward the cooling tower.

Abstract: The invention concerns a heat transfer device comprising an insulating module (12) designed to be inserted between a first wall (14) and a second wall (16) to define a closed loop wherein flows a heating medium (FC) which comprises a first channel (28) extending substantially vertically along the first wall (14) and a second channel (30) extending substantially vertically along the second wall (16), the first channel and the second channel being mutually offset in the vertical direction to define a low channel and a high channel, as well as an upper channel (32) and a lower channel (34) linking the first channel and the second channel, such that heating medium (FC) flows freely or is blocked naturally in the loop when on the basis of the respective temperatures of the high channel and the low channel. The invention is particularly useful for heating or cooling buildings.

Abstract: A damper system for air handling systems the manipulation or control of air in an enclosure such as a building, a room of a structure such as a residence, and the like.

Abstract: A system for of aligning a mask to a substrate comprising: a fixture for holding the mask and the substrate in fixed positions relative to each other; means for holding the substrate, the means for holding the substrate protruding through openings in a table and the fixture, the means for holding fixedly mounted on a stage, the stage moveable in first and second directions and rotatable about an axis relative to the table; means for affixing the fixture containing the mask and the substrate to the table; means for controlling the means for temporarily affixing so as to generate a uniform force around a perimeter of the fixture to effectuate the temporarily affixing; means for aligning the mask to the substrate, the means for aligning controlling movement of the stage in the first and second directions and rotation about the axis; and means for fastening the fixture together.

Abstract: A refrigerator with an evaporator and at least one preservation compartment, in which the evaporator is formed from extendable spiral-wound tube of engineering polymer.

Abstract: Both an air mixing door (9) for the cold air for adjusting a passage area of the cold air passage (6); and an air mixing door (10) for the hot air for adjusting a passage area of the hot air passage (7) are composed of a sliding door for adjusting the passage area when the air mixing door (9) for the cold air and the air mixing door (10) for the hot air are slid in a direction perpendicular to the flow of air in both the passages (6, 7), and while one of the air mixing door (9) for the cold air and the air mixing door (10) for the hot air is maintaining one of the passages (6, 7) in a fully opened state, an operating position of the other door is adjusted so that a passage area of the other passage is adjusted and a temperature of the air blowing out into a vehicle compartment is adjusted.

Abstract: A manually switchable corona electrode array and method of operation for use in a corona treater station. The preferred embodiment of the present invention contemplates an electrode array which incorporates in its structure a low pressure conduit system for providing a low pressure field in the vicinity of the corona field, in order to remove ozone and other contaminants generated by the corona field. The electrode array further includes means to quickly and easily urge the array from a first position, wherein the array is situated adjacent to the treatment area, to a second position, removed from the treatment area, so as to facilitate maintenance and spooling of the material to the treated therethrough. The present invention provides a more compact footprint than traditional systems, as well as providing an ozone removal system requiring a cheaper, less powerful exhaust blower for providing the low pressure differential to remove the pollutants, including ozone, from the treatment area.

Abstract: A futon has cooling flow passages that are provided in a substantially parallel and planar manner. Air at a temperature lower than the body temperature is blown through the cooling flow passages substantially parallel to the body surface of a person lying on the futon. As a result, the temperature gradient near the body surface is increased so as to release heat from the body, resulting in a feeling of coolness.

Abstract: A heat exchanger assembly for use in an HVAC system is provided. The heat exchanger assembly includes: a shell-type casing; a plurality of tubes located inside the shell-type casing, each of the tubes having an outer surface and an irregular inner surface; and a plurality of electrodes. Each electrode is located inside one of the corresponding tubes to create a space between the electrode and the inner surface of the tube. A first fluid is located in each space between the electrodes and the inner surfaces of the tubes. A second fluid is located in a space between the tubes and the shell-type casing to flow across the outer surfaces of the tubes. A voltage is applied on the electrodes in order to increase the rate of heat transfer between the first fluid and the second fluid. The invention also includes a method of exchanging heat between a heat transfer fluid and a refrigerant in a shell and tube heat exchanger.

Abstract: An apparatus (100) controls the temperature of air flow from a temperature control system (10) The apparatus (100) includes a blend door (150), an output gear (140), and a biasing mechanism (124) The biasing mechanism (124) facilitates rotation of the output gear (140) in a first rotation direction (136) and impedes rotation of the output gear (140) in a second rotation direction (138) opposite the first rotation direction (136) This results in the torque necessary to rotate the output gear (140) in the first rotation direction (136) being substantially equal to the torque necessary to rotate the output gear (140) in the second rotation direction (138).

Abstract: An enhanced heat transfer device with electrodes is provided, which is applied to a heat exchanger with a plurality of fluid channels and includes a plurality of electrodes mounted in the fluid channels of the heat exchanger; a plurality of sensor units mounted in the fluid channels of the heat exchanger for measuring mass flow rates of fluids in the fluid channels; and a power source for providing voltage to the electrodes. The power source is used to drive the electrodes to produce turbulence to fluids passing through the fluid channels according to measured mass flow rates from the sensor units, so as to facilitate uniform fluid flows in the plurality of fluid channels and reduce effect of thermal boundary layer in the fluid channels to thereby enhance heat transfer performance for the heat exchanger.

Abstract: A vehicle air conditioning system secures an appropriate temperature difference in the air blown through vertically arranged air ducts when the system is in a bi-level mode. A hot air inlet is disposed above a cool air inlet. A face opening is disposed at an upper location while foot openings are disposed at a lower location. A blow mode-changing door for opening and closing both the openings is a butterfly type door. The blow mode-changing door is pivotally disposed in a door housing. In the bi-level mode in which the blow mode-changing door opens both the foot openings and the face opening, a bi-level mode bypass passageway for introducing cool air from the cool air inlet into the face opening is defined between an extremity of the blow mode-changing door and the inner wall surface of the door-housing portion.

Abstract: The invention concerns a supply air terminal device (10) including a supply chamber (11) for the supply air and in the supply chamber (11) nozzles (12a1, 12a2 . . . ; 12b1, 12b2 . . . ), through which the supply airflow (L1) is conducted into a side chamber (B1) of the supply air terminal device, which side chamber is a structure open at the top part and at the bottom part. The supply air terminal device (10) includes a heat exchanger (14), which can be used either to cool or to heat the circulated airflow (L2). In the device solution, fresh supply air, which is conducted through the nozzles to the side chamber (B1), induces the circulated airflow (L2) to flow through the heat exchanger (14). The combined airflow (L1+L2) of supply airflow (L1) and circulated airflow (L2) is conducted out of the supply air terminal device (10). The supply air terminal device includes an induction ratio control device (15), which is used to control how much circulated airflow (L2) joins the supply airflow (L1).

Abstract: A method and system are disclosed for cooling a heat generating object. A coolant is passed through a heat exchanger so that heated air passing through a first portion of the heat exchanger is cooled. A fan unit is selectively positioned relative to the heat exchanger. When activated, the fan unit draws the cooled air through a second portion of the heat exchanger and directs the twice cooled air towards the heat generating object. The fan unit may be repositioned along a different portion of the heat exchanger so as to redefine the flow of air drawn from and directed towards the heat generating object.

Abstract: A cooling device for an electronic apparatus, comprising: a heat generating element attached within a first housing; a heat receiving jacket, being connected with said heat generating element, and being attached within said first housing; a second housing being rotatably supported on said first housing; a first heat exchanger attached within said second housing, for exchanging heat between an outside; and a liquid driving means for supplying a cooling liquid to said heat receiving jacket, wherein a portion of a pipe for connecting between said heat receiving means, said first heat exchanger, and said liquid driving means is made of a flexible tube made of a resin, and further wherein, a second heat exchanger and an ion exchanger are provided in a part of said pipe, said second housing is received within said second housing, and said ion exchanger is received within said second housing.

Abstract: A coil modulator apparatus for use in connection with heat transfer coil assemblies found in commercial heating and air conditioning units is used to limit the number of active tube sections in cooling coil assemblies. The two port modulator apparatus comprises an inner valve, having valve ports in the sides of the valve, that rotates within an outer housing having openings that correspond to those ports in the inner valve. Apertures in the outer housing connect with upstream and downstream tube sections in the bank of tubes. As the actuator arm of the coil assembly is rotated this rotates one of the valves changing the orientation of the outer and inner valve ports and so cutting off water flow in various tubes depending upon how far the actuator is moved.

Abstract: A heat management system is capable of managing unlimited hydronic heat sources and unlimited heating zones, each located within a desired area and each controlled by temperature sensors. The system uses plural system heating sources to heat a heating solution (preferable glycol-based) that is either heated directly or through a liquid-to-liquid heat exchanger. The heating solution is passed through various plumbing configurations to heat domestic water for users and to heat zones or areas in which user will live. The heat management system of the invention may be used for several applications including RV, marine and home hot water and heating applications.

Abstract: A pivot assembly for the damper vane of a hot water baseboard heater has a base which slides into the channels of the damper vane and a projection which snaps into a hole on a respective support bracket of the baseboard so that fingers of the projection spread on one side of the bracket while a pair of resilient arms are braced against the other side.

Abstract: A heat exchanger includes a plurality of spaced-apart plates and a plurality of spacers that separate the plates. The plates and spacers cooperate to form hot-side and cold-side passageways. The plates are made of a thermally and electrically conductive material, and the spacers are made of an electrically non-conductive material. A voltage is applied across the plates to electro-hydrodynamically increase heat transfer efficiency of the heat exchanger.

Abstract: A heat transfer array is presented which includes one or more pouch flexors that press down on a fluid product containing pouch and facilitate heat exchange by mixing the pouch contents while the exterior of the pouch is contacted by a heat exchange medium. The pouch flexors are arranged in an array of three wheels, and the pouches are subjected to a number of wheel arrays in order to exchange heat from the pouch contents. The pouch flexors are stationary and a conveyor belt moves the pouch product under the wheel arrays.

Abstract: A coil modulator apparatus for use in connection with heat transfer coil assemblies found in commercial heating and air conditioning units is used to divert passage of water flow in certain sections of each tube in the coil assembly. The coil modulator apparatus comprises an inner valve, having valve ports in the sides of the valve, that rotates within an outer housing. Apertures in the outer housing connect with each tube in the bank of tubes so that there is an aperture in the outer housing that connects with both the downstream tube section and the upstream tube section of each tube. A portion of the water that collects in the modulator then flows back out of the modulator and into each of the downstream sections of every tube in the coil assembly. Another portion of the water in the modulator is diverted from the bank of tubes so that it flows out of the bypass tube of the modulator and directly back to the return feed of the coil assembly unit.

Abstract: An interruptible thermal bridge system including: a first thermally conductive surface positioned proximate an object which absorbs energy; a second thermally conductive surface thermally connected to the first conductive surface positioned proximate to an object which dissipates energy, a thermal switch positioned between the first and second conductive surfaces for regulating a thermal connection between the first and second surfaces by alternatively switching between a first position, blocking the conductive path and thermally insulating the first conductive surface from the second conductive surface, and a second position, opening the conductive surface with the second conductive surface.

Abstract: A coil modulator apparatus for use in connection with heat transfer coil assemblies found in commercial heating and air conditioning units is used to divert passage of water flow in certain sections of each tube in the coil assembly. The coil modulator apparatus comprises an inner valve, having valve ports in the sides of the valve, that rotates within an outer housing. Apertures in the outer housing connect with each tube in the bank of tubes so that there is an aperture in the outer housing that connects with both the downstream tube section and the upstream tube sections of each tube. A portion of the water that collects in the modulator then flows back out of the modulator and into each of the downstream sections of every tube in the coil assembly. Another portion of the water in the modulator is diverted from the bank of tubes so that it flows out of the bypass tube of the modulator and directly back to the return feed of the coil assembly unit.

Abstract: A means for thermal maintenance of industrial pipe by virtue of a working medium passing through at least one prefabricated hollow element attachable to the outside surface of the pipe wall is disclosed. The hollow element comprises an outer cover defined by an inner portion, facing the external surface of the pipe wall, an outer portion, situated opposite the inner portion and facing outwardly and transition portions connecting the inner portion with the outside portion. The inner portion is provided with concave configuration defined by radius R1 and closely matching the curvature of the pipe. The inner portion encloses about 180 degrees of the pipe's external surface and the transition portions are rounded by radius r, wherein r<R1.

Abstract: An electrode configuration for use in association with a heat transfer member provided in a thermal energy transfer system. Separate multiple electrical conductors are each received on a respective first surface alteration. Each of the multiple conductors is connected to a different terminal of a multiphase alternating power source so that an electric traveling wave moves in a longitudinal direction of the heat transfer member so as to induce pumping of at least the liquid phase in the longitudinal direction to thereby enhance the thermal energy transfer characteristics of the thermal energy transfer system. In a preferred embodiment, the aforementioned heat transfer members are provided inside of an outer conduit.

Abstract: Faults occurring in the operation of a rapid thermal process system are detected and dynamically controlled in-situ. A data set is generated which represents the power applied to heating elements which are spatially arranged in a plurality of zones. The data is converted to a sequence of fractions respectively representing the power applied to each zone relative to the total applied power. The fractions are sequentially arranged and a least squares straight line fit for the fractions is calculated. The slope of the calculated straight line fit is used in a statistical process control system to determine whether a fault has occurred, and to make appropriate corrections in process control parameters, such as the length of time the process is carried out.

Abstract: A thermal panel (10) for passive temperature control includes a cell (28) having a transparent side (14) and a base side (24). The cell (28) has a heatable plate (12) contained therein. The heatable plate (12) is passively disposable between a warming position and a cooling position. The heatable plate (12) is heated by a plurality of light waves (34) when the plate (12) is passively disposed in the warming position. Further, the cell also has an insulating medium (30) contained therein. The insulating medium (30) shields the heatable plate (12) from the light waves (34) when the heatable plate (12) is in the cooling position.

Abstract: A device and a method are provided for heating and cooling a compartment of a motor vehicle powered by an internal combustion engine. The device has a coolant circuit with a compressor, an ambient heat exchanger, at least one expansion device, an interior heat exchanger, and an exhaust heat exchanger that can be heated by exhaust gases from the engine. During heating, a coolant is guided through the compressor and through the interior heat exchanger connected downstream from the compressor, releasing heat. The compressor, interior heat exchanger, expansion device, ambient heat exchanger, and heat exchanger are connected in series so that the coolant is expanded in the expansion device to a temperature below an intake temperature of coolant into the compressor, exposed in the ambient heat exchanger to warmer ambient air, heated in the heat exchanger by the exhaust gases from the engine, and compressed in the compressor.

Abstract: A heat exchanger has a core provided with passages for a liquid to keep cool and passages for a cooling medium, a first collection tank for supplying the liquid, a second collection tank for withdrawing the liquid, at least one third collection tank, the core being divided into at least two sections through which the liquid successively flows and which are interconnected by the at least one third collection tank, one of the sections being connected with the first collection tank, while the other of the sections being connected with the second collection tank, a bypass line connected with the third collection tank and in parallel with the other sections, and structure for activating and deactivating the bypass lines.

Abstract: An electronic device has at least one component that is capable of generating a quantity of heat. The electronic device further has an air-moving device and an air duct. The air moving device is capable of creating a flow of air that removes a portion of the quantity of heat. The flow of air enters the air duct. The air duct has a restriction chamber that includes a venturi vent in which the flow of air into the duct and through the restriction chamber creates a new flow of air into the venturi vent. The new flow of air into the venturi vent does not pass over the at least one component in the electronic device.

Abstract: A cooling device for an electronic component is specified, which is built up from a stack (1) of profiled plates (2a; 2b) lying on one another and connected to one another and, at the end of the stack, termination plates (3) are provided in the stacking direction (x), at least one of the termination plates (3) being designed to make extensive contact with the electric component. Furthermore, at least one of the profiled plates (2a) has a flexible extension (4), the extension (4) projecting beyond the cross section of the stack (1). In addition, a cooling system with at least two such cooling devices is disclosed.

Abstract: The invention relates to an exhaust gas cooler for an internal combustion engine, preferably in a motor vehicle, with a housing through which exhaust gas can flow in the longitudinal direction and in which a partition extends in the longitudinal direction and separates a first chamber from a second chamber, with an inlet which communicates in the housing with a first chamber and through which the exhaust gas flows into the housing, with an outlet which communicates in the housing at least with the second chamber and via which the exhaust gas flows out of the housing, and wherein the partition has at least one overflow opening through which the first chamber communicates with the second chamber.

Abstract: A roll for thermal and mechanical treatment of a web-shaped product, for example paper, comprises a roll body (1), thermal treatment conduits (2), insulating devices (4, 5; 4a, 5), a trunnion flange (3), and actuators (8). The insulating devices are capable of elongation in the thermal treatment conduits in the longitudinal direction of the conduits. The treatment conduits are for a thermal treatment fluid and are oriented in the roll body in the vicinity of the surface of the roll body. The trunnion flange is applied to the roll body, and the actuators are mounted in the trunnion flange and connected to the insulating devices. The actuators are mounted shiftable and fixable in the longitudinal direction of the thermal treatment conduits and are connected to the insulating devices for joint shifting.

Abstract: A heat pipe and method that utilizes a multi-layered shape memory alloy (SMA) as the wick structure. Each layer has a different transformation temperature. The inner layer of the SMA begins contracting first when heat is applied along the surface of the heat pipe. The contraction reduces the effective capillary radius rc of the wick, thereby maintaining or increasing the capillary pumping pressure and thus the ability to remove heat. As the temperature of the heat pipe continues to rise, the outer layer begins contracting to reduce the capillary radius further. As a result, the local pumping pressure is maintained or even increased to accommodate higher local heat flux and remove the heat to prevent “dry-out.

Abstract: The invention describes a heat exchanger that continuously and passively regulates the transfer of heat across each part of the heat exchanger's partitions. Such partitions composed of typically two tubes, one inside the other's bore, that at various points, contact each other or separate from each other, thereby increasing or decreasing heat transfer across their walls at those points. Such separations and contacts being spontaneously effected by changes in the shape of at least one of the tubes which is driven by elements connected to that tube and which change their shape in response to temperature changes, such as shape memory alloys (SMA's) or bi-metal strips.

Abstract: A system (and accompanying method) for reducing thermal shock in a physical device includes: a gas inlet portion; and an ablator material positioned in the gas inlet portion to reduce a temperature differential at a surface between the gas inlet portion and a gaseous material propelled through the gas inlet portion. The gas inlet portion can include: a first material; and a second material having a boundary with the first material, where the ablator material is positioned at the boundary. The first material is not sensitive to thermal shock, and the second material is sensitive to thermal shock. The ablator material can be housed in a recess at the boundary. The first material can be a manifold. The second material can be a portion of a control valve for controlling the direction and amount of a hot gas emitted therefrom. The manifold can include a bypass slot connecting a main inlet gas chamber of the manifold with a surface of the ablator material.

Abstract: A bipolar collector-heat exchanger is shown which combines, at the same time, a main structure made of an electronically and thermally conducting material, discrete collection of the charges and the heat, carried out by metal contacts which are distributed uniformly at the surface of the electrodes and penetrate into the main structure, but which do not pass fully through it, and the use of non-conductive open structures which homogenise the flow of the gaseous reactants.