81results about How to "Transfer of heat" patented technology

A light fixture assembly including an illumination assembly in the form of one or more light emitting diodes is interconnected to an electrical energy source by control circuitry. A mounting assembly supports the illumination assembly and a cover structure is disposed in heat transferring relation to the illumination assembly, wherein the cover structure, which has an enlarged surface area formed of a heat conductive material, defines a decorative exterior of the light fixture and is disposed exterior of a mounting surface, thereby effectively dissipating the heat generated by the LED illumination assembly towards the environment being illuminated by the light fixture.

A wheel motor with an housing enclosing the motor and defining a cylindrical cavity extending into a space at the center of the motor, with the motor and the cavity separated from each other by the housing. The cavity containing, at least in part, a transmission engaging a shaft of the motor, and a wheel bearing supporting the load of a wheel engaging a wheel mount connected to the transmission. The transmission preferably includes a planetary gear surrounded by the motor in the cavity.

A heat transfer system is provided for a turbine engine of the type including an annular casing with an array of generally radially-extending strut members disposed therein. The heat transfer system includes at least one primary heat pipe disposed at least partially inside a selected one of the strut members; at least one secondary heat pipe disposed outside the fan casing and thermally coupled to the at least one primary heat pipe and to a heat source. Heat from the heat source can be transferred through the secondary heat pipe to the primary heat pipe and to the selected strut member.

A light fixture assembly including an illumination assembly in the form of one or more light emitting diodes is interconnected to an electrical energy source by control circuitry. A mounting assembly supports the illumination assembly and a cover structure is disposed in heat transferring relation to the mounting assembly, wherein both the mounting assembly and the cover structure are formed of conductive material, thereby effectively dissipating the heat generated by the LED illumination assembly. The illumination assembly is connected to a source and electric energy by a conductor assembly comprising one or more conductive material connectors mechanically interconnecting components of the light fixture into an assembled orientation. A non-conductive insulation assembly isolates each of the one or more conductive connectors from the mounting assembly to avoid electrical contact there between.

A light fixture assembly including an illumination assembly in the form of one or more light emitting diodes is interconnected to an electrical energy source by a conductor assembly and control circuitry. A mounting assembly supports the illumination assembly and a cover structure is disposed in heat transferring relation to the mounting assembly, wherein both the mounting assembly and the cover structure are formed of heat conductive material, thereby effectively dissipating the heat generated by the LED illumination assembly. The conductor assembly, comprising at least one electrically conductive material connector, mechanically interconnects components, including the illumination source and the mounting assembly, into an assembled orientation. A non-conductive insulation assembly or a predetermined air space isolates the at least one conductive connector from the mounting assembly to avoid electrical contact there between.

A cooling apparatus and method including a plurality of heat-producing devices positioned in a plurality of cabinets arranged in a row that allows flow of a first fluid through the heat-producing devices and cabinets where the flow is directed from an upstream end of the row to a downstream end of the row. The cabinets have a space therebetween wherein a heat exchanger is positioned between and adjacent to the cabinets, thereby the cabinets and heat exchangers alternate in the row. Each heat exchanger allows flow of a second fluid therethrough for cooling the first fluid. A fluid-moving device is positioned adjacent the heat-producing devices for encouraging flow of the first fluid through the cabinets' heat-producing devices and through the heat exchangers, thereby encouraging heat transfer in each of the heat exchangers from the first fluid to the second fluid.

The invention provides systems and methods for cooling and lubrication of high power density electric machines with an enhanced fluid injection system. Multiple fluid flow passages may be provided within the electric machine, which may include a stator fluid flow pathway between the stator and the machine housing. The stator fluid flow pathway may comprise one or more passages which may allow a fluid to directly contact the stator and the rotor. A method for cooling the electric machine may include directing a fluid to flow through one or more passages between the stator and the housing, which may provide the opportunity to transfer heat from the stator and the rotor to the fluid, thereby cooling the stator and the rotor.

A heat transfer system is provided for a turbine engine of the type including an annular casing with an array of thermally conductive, generally radially-extending strut members disposed therein. The heat transfer system includes at least one arcuate heat pipe disposed in contact with an outer surface of the casing within fore-and-aft limits of the axial extent of the strut members. The heat pipe is thermally coupled to a heat source, such that heat from the heat source can be transferred through the heat pipe and the casing to the strut members.

A temperature control device includes: a top plate; a heat exchanger plate; a thermoelectric module including a temperature-control-side electrode disposed near the top plate, a heat-exchanger-side electrode disposed near the heat exchanger plate and a thermoelectric element of which one side is connected with the temperature-control-side electrode and the other side is connected with the heat-exchanger-side electrode; and a polyimide film provided on the thermoelectric module near the top plate. The thermoelectric module is spaced apart from and surrounded by a seal wall having a ceramic outer circumference and disposed between the polyimide film and the heat exchanger plate. An adhesion sheet or an adhesive is interposed between the seal wall and the polyimide film.

A light fixture assembly including an illumination assembly in the form of one or more light emitting diodes is interconnected to an electrical energy source by control circuitry. A mounting assembly supports the illumination assembly and a cover structure is disposed in heat transferring relation to the illumination assembly, wherein the cover structure and / or mounting assembly have enlarged surface areas formed of a heat conductive material, facilitating heat dissipation generated by the illumination assembly into the surrounding environment. At least one connector, formed of an electrically conductive material, is disposed in interconnecting, current conducting relation between a source of electrical energy and the illumination assembly. The mounting assembly is disposed in electrically segregated relation to the connector(s), wherein said interconnecting relation of said one connector at least partially defines an assembled orientation of the illumination assembly and mounting assembly.

A stator of an electrical machine provides a sensor carrier having a spring element that presses the sensor element against one of the coils.

An apparatus and method are disclosed for pre-concentrating gaseous vapors for analysis. The invention finds application in conjunction with, e.g., analytical instruments where low detection limits for gaseous vapors are desirable. Vapors sorbed and concentrated within the bed of the apparatus can be thermally desorbed achieving at least partial separation of vapor mixtures. The apparatus is suitable, e.g., for preconcentration and sample injection, and provides greater resolution of peaks for vapors within vapor mixtures, yielding detection levels that are 10-10,000 times better than for direct sampling and analysis systems. Features are particularly useful for continuous unattended monitoring applications.

a hydrogen refueling system for refueling a vehicle with hydrogen. The system comprises a hydrogen supply, a hydrogen center enclosure comprising a cooling system. The cooling system is arranged for cooling the hydrogen delivered to the vehicle. The system further comprises a dispenser arranged for supplying the hydrogen to the vessel of the vehicle. A supply pipe is arranged for guiding the hydrogen from the center enclosure to the dispenser. The system further comprises a forward path arranged for guiding a supply pipe cooling media from the hydrogen center enclosure towards the dispenser, and a return path arranged for guiding at least a fraction of the supply pipe cooling media back to the hydrogen center enclosure, where at least one of the forward and return paths are thermally connected with the cooling system.

A liquid crystal display device includes a reflection plate; a light guide plate over the reflection plate; a light-emitting diode (LED) assembly including LEDs arranged along a side surface of the light guide plate, an LED flexible printed circuit board (FPCB) having LEDs mounted on its surface. The FPCB includes a bar and a leg portion extending from the body. The bar and the leg portion are integrated into a single body. The leg portion extends from the bar to a circuit for controlling the LEDs. A metallic bar is attached to bar of the LED FPCB to provide rigidity to the FPCB as well as cool the FPCB.

A light fixture assembly including an illumination assembly in the form of one or more light emitting diodes is interconnected to an electrical energy source by control circuitry. A mounting assembly supports the illumination assembly and a cover structure is disposed in heat transferring relation to the mounting assembly, wherein both the mounting assembly and the cover structure are formed of conductive material, thereby effectively dissipating the heat generated by the LED illumination assembly. The illumination assembly is connected to a source and electric energy by a conductor assembly comprising one or more conductive material connectors mechanically interconnecting components of the light fixture into an assembled orientation. A non-conductive insulation assembly isolates each of the one or more conductive connectors from the mounting assembly to avoid electrical contact there between.

Apparatus and process are provided to enable rapid start up of hydrogen generator (1) that use partial oxidation reforming. In the start up processes, a heated oxygen containing gas (110) is passed through the reformer (106) and at least one downstream unit operation (108) to achieve a first temperature regime. Then a heated steam containing gas is used to raise the temperatures of the reformer (106) and at least one downstream unit operation (108) to a second temperature regime at which partial oxidation reforming can be initiated.

The present invention relates to an adhesive coating device for sheet-binding provided with a roller 14, part of which is immersed in adhesive 10 stored in an adhesive reservoir 12, for applying hot-melted adhesive 10 in the above-mentioned adhesive reservoir 12 along the arranged one-side edge of a bundle of sheets 54 while rotating. The device includes an electromagnetic induction heating coil 20 disposed in the vicinity of the above-mentioned roller 14, and a current supply device 5 for supplying a high-frequency current to the above-mentioned electromagnetic induction heating coil 20. The above-mentioned roller 14 is formed of a heating member for generating heat using the Joule heat owing to an eddy current caused by a high-frequency magnetic flux generated by the above-mentioned electromagnetic induction heating coil 20, and the above-mentioned roller 14 is heated by supplying a current from the above-mentioned current supply device 51 to the above-mentioned electromagnetic induction heating coil 20 so that the adhesive 10 stored in the above-mentioned adhesive reservoir 12 is melted.

A heat exchanger includes a heat exchange portion in which at least tubes of refrigerant tubes or coolant tubes are stacked and at least one of refrigerant or coolant exchanges heat with air. An air passage is formed in a space formed between tubes of the refrigerant tubes and the coolant tubes which are adjacent to each other. An upstream heat exchange portion located on an upstream side in a flow direction of air and a downstream heat exchange portion located downstream of the upstream heat exchange portion in the flow direction of air are provided as the heat exchange portion. A ratio of the number of the refrigerant tubes to the total number of tubes of the upstream heat exchange portion is different from a ratio of the number of the refrigerant tubes to the total number of tubes of the downstream heat exchange portion.

A light fixture assembly including an illumination assembly in the form of one or more light emitting diodes is interconnected to an electrical energy source by control circuitry. A mounting assembly supports the illumination assembly and a cover structure is disposed in heat transferring relation to the illumination assembly, wherein the cover structure, which has an enlarged surface area formed of a heat conductive material, defines a decorative exterior of the light fixture and is disposed exterior of a mounting surface, thereby effectively dissipating the heat generated by the LED illumination assembly towards the environment being illuminated by the light fixture.

A cooling apparatus and method including a plurality of heat-producing devices positioned in a plurality of cabinets arranged in a row that allows flow of a first fluid through the heat-producing devices and cabinets where the flow is directed from an upstream end of the row to a downstream end of the row. The cabinets have a space therebetween wherein a heat exchanger is positioned between and adjacent to the cabinets, thereby the cabinets and heat exchangers alternate in the row. Each heat exchanger allows flow of a second fluid therethrough for cooling the first fluid. A fluid-moving device is positioned adjacent the heat-producing devices for encouraging flow of the first fluid through the cabinets' heat-producing devices and through the heat exchangers, thereby encouraging heat transfer in each of the heat exchangers from the first fluid to the second fluid.

A method controls a direct-injection gaseous-fuelled internal combustion engine system to improve the conversion efficiency of an SCR converter that is operative to reduce levels of NOx. The method comprises detecting when the internal combustion engine is idling and timing the injection of a first quantity of fuel to begin injection when the engine's piston is near top dead center; and controlling the temperature of exhaust gas to be above a predetermined temperature that is defined by an operating temperature range that achieves a desired conversion efficiency for the selective catalytic reduction converter, by: (a) timing injection of the gaseous fuel to begin after timing for injection the first quantity of fuel, and (b) increasing exhaust gas temperature by increasing a delay in timing for injecting the gaseous fuel, while limiting the delay to keep concentration of unburned fuel exiting the combustion chamber below a predetermined concentration.

An enzyme fermented and yeast leavened formulation with a specified rheology can be used in a unique process to provide a high quality bread dough. The dough can be topped with a heat transfer modulator and baked to form a quality product with a bready character and a pleasing crust in a short time.

A sealing structure for a refrigerator is provided. The structure includes a gasket formed at a door of the refrigerator and at least two air pockets provided in the gasket. There is at least one connector, which separates the at least two air pockets from each other, and first convection cut-off members provided inside of the at least two air pockets. Additionally, the seal structure includes an inner case provided at an interior side of the refrigerator; a door liner, which lines the door, provided at an interior side of the refrigerator; and an air dam provided between the inner case and the door liner. Further, second convection cut-off members are provided in the air dam.

The invention provides a structural principle wherein a combination fan-heatsink type cooling device transfers a large amount of heat into an ambient while producing minimal acoustic noise. The fan-heatsink has top and bottom cover members with a central power shaft between them, the shaft has fins that rotate around the shaft between the covers to move ambient. The ambient enters the fan-heatsink through inlets through the covers near the central power shaft and is forced out through louvers that make up the peripheral of the fan-heatsink housing. The fan-heatsink cooling device is positioned so that heat radiating from the heat source such as a chip enters the housing through the inlets near the central shaft and heat pipes are arranged to carry heat from the chip source to and through the louvers so that the ambient forced through the louvers absorbs heat transferred to the louvers at the place where it is immediately carried out of the fan-heatsink structure.

A heat transfer system is provided for a turbine engine of the type including an annular casing with an array of thermally conductive, generally radially-extending strut members disposed therein. The heat transfer system includes at least one arcuate heat pipe disposed in contact with an outer surface of the casing within fore-and-aft limits of the axial extent of the strut members. The heat pipe is thermally coupled to a heat source, such that heat from the heat source can be transferred through the heat pipe and the casing to the strut members.

A light fixture assembly including an illumination assembly in the form of one or more light emitting diodes is interconnected to an electrical energy source by control circuitry. A mounting assembly supports the illumination assembly and a cover structure is disposed in heat transferring relation to the mounting assembly, wherein both the mounting assembly and the cover structure are formed of conductive material, thereby effectively dissipating the heat generated by the LED illumination assembly. The illumination assembly is connected to a source and electric energy by a conductor assembly comprising one or more conductive material connectors mechanically interconnecting components of the light fixture into an assembled orientation. A non-conductive insulation assembly isolates each of the one or more conductive connectors from the mounting assembly to avoid electrical contact there between.

A heat conduction system including modular pipes housing a solid heat conductor made of a combination of carbon foam glass and grapheme and, for conductors, insulated from the outermost pipe by an insulating layer and with an annular gas purging gap for high-temperature applications. Also included in the system are thermal valves, manifolds, and heat exchangers to route and use the thermal energy. In an exemplary use, a down-hole heat exchanger, thermally coupled to a string of heat conduction modules, brings geothermal heat up from abandoned oil wells to operate a boiler and steam turbine. In another exemplary use, waste heat is conducted out of slag for conversion into useful energy. In yet another exemplary use, waste heat is conducted away from a nuclear reactor.