32results about How to "Large heat flow" patented technology

A wave-fan comprises a wavy surface, generally sinusoidal in the direction of rotation, which rotates in close proximity to the fins of a heat sink. The wave-plane fan is suitable for use with a flat heat sink, and a wave-ring fan is suitable for use with a cylindrical heat sink. There are no airfoils as in a prior art fan. Instead, the ridges of the wave-fan agitate the air between the fins of the heat sink as each ridge passes, breaking down the boundary layer and effecting good heat flow into the air. In some embodiments of the wave-fan, the outer surfaces are smooth, so it is not a hazard to intruding fingers, so in many applications it may be used without a guard or enclosure. Incidental centrifugal force provides some airflow through the fan to transport the heated air away from the fan. Also, the configuration of the fan tends to keep contamination in the air out of the heat sink fins, so an inlet air filter may not be needed. Because the net airflow through the fan is low, less power is required and it is very quiet.

The present invention relates to a cooling device, in particular for cooling of components of power electronics, using a coolant which flows through a micro heat exchanger (10) having a good heat contact with the component (1), and wherein the coolant is selected in such a way that it evaporates in the micro heat exchanger (10) at the desired component temperature.

A silicone composition contains I) a shrink additive and II) a curable polyorganosiloxane composition. A method for fabricating an electronic device includes the steps of: 1) interposing the silicone composition between an IHS and a substrate, 2) curing the curable polyorganosiloxane composition to form a cured silicone product, and 3) removing the shrink additive during and/or after step 2), thereby compressing the IHS to the substrate. Compressing occurs as thickness of the cured silicone product decreases, as compared to thickness of the silicone composition interposed in step 1).

A component defines a blade or a vane for a rotor rotatable about a rotary axis (x). An inner space (10) of the component is limited by first and second walls (12), and forms a passage for a cooling fluid. First and second ribs (21, 22) project form the first and second walls, respectively, and extend in parallel to each other to form channels for the fluid from a leading end to a trailing end of the ribs. The ribs extend along a first and a third direction, respectively, in the proximity of the leading end and along a second direction and fourth direction, respectively, in the proximity of the trailing end. The first direction is inclined in relation to the second direction. The third direction is inclined in relation to the fourth direction. The first direction intersects with the third direction. The ribs extend from the leading end to the trailing end along a continuously curved path.

According to the disclosed embodiments, an advanced crucible support system is described that allows for greater heat flow to and from the bottom of a crucible, preferably while also preventing excessive heat from reaching a heat exchanger. In particular, a support base is described that includes one or more vents enabling improved heat flow throughout the system. Also, according to one or more additional embodiments, the functionality of the crucible support is adapted to be leveraged by a crucible manipulating device. For example, the support plate may have a plurality of slots for insertion of a “lifting arm”, such that the entire support plate assembly, as well as the crucible itself while on the support assembly, may be lifted and transported as a single unit.

A water redispersible polymer powder is produced by drying an aqueous mixture of a low carboxylation, low Tg, large average particle size water insoluble film-forming polymer latex or emulsion and a colloidal stabilizer. The latex polymer may have an average particle size of 2000 Å to 5,000 Å, and an amount of carboxylation of 0.1% to 2.75% by weight of at least one ethylenically unsaturated dicarboxylic acid, salts or mixtures thereof, based upon the weight of the polymer. Dispersions containing the polymer and a polyvinyl alcohol as a colloidal stabilizer exhibit an unexpectedly low viscosity which facilitates spray drying and permits use of high solids content dispersions with low pressure spray drying to increase production efficiency. Cement compositions such as mortars, which contain the redispersible polymer powder exhibit unexpectedly lower rates of viscosity buildup for better workability or troweling, faster set time, and superior heat flow characteristics.

A piston rod for piston compressors, wherein the piston rod has a base body with one end facing the piston, one end away from the piston, and at least one cavity. The cavity is filled with a solid, whose specific thermal conductivity is greater than that of the base body.

Furthermore, the invention concerns a piston compressor with a piston and a nonlubricated piston rod seal, wherein the piston is connected to the described piston rod.

A method for reducing the pollutant emissions in the exhaust gas in a start/catalytic converter heating phase of an internal combustion engine featuring externally supplied ignition and having at least one catalytic converter in an exhaust gas tract of the internal combustion engine, and for adapting a catalytic converter heating strategy to suitable state variables of the internal combustion engine and the catalytic converter as well as to the fuel quantity, the aging state and ambient conditions. The internal combustion engine is operated in a first phase of the start/catalytic converter heating phase using a lean air-fuel mixture in a range between a lambda value of 1.05 and at a lean misfire limit of the internal combustion engine that lies at a higher lambda value, and/or in a second phase of the start/catalytic converter heating phase, initially using a rich air-fuel mixture.

A pyrolysis heater has the inlet sections of the process coils grouped together and the outlet sections of these same process coils also grouped together. High heat liberation hearth burners are located adjacent to the inlet sections of the coils and lower heat liberation burners are located adjacent to the outlet sections. The secondary fuel tips of the burners are inclined toward the adjacent, heater wall. The high heat liberation hearth burners adjacent to the inlet coils are arranged in spaced apart pairs with the secondary burner tips of each of the pair being inclined toward the other burner of the pair.

A bearing ring with integrated cooling channels and a method for producing a bearing ring with integrated cooling channels are provided.

The invention provides a heater. The heater comprises a housing, a heating body, a first fan and a second fan. An air inlet and an air outlet are formed in the housing, and the air outlet is formed around the circumference of the housing; the heating body is disposed in the housing, located between the air inlet and the air outlet and used for heating air in the housing; the first fan is disposedbetween the air inlet and the heating body and used for blowing the air entering from the air inlet to the heating body; the second fan is disposed between the heating body and the air outlet and usedfor blowing the air heated by the heating body to the air outlet. The air enters the housing from the air inlet, the first fan blows the air entering from the air inlet to the heating body, the heating body heats the air, and the second fan blows the air heated by the heating body to the air outlet. Since the air outlet is formed around the circumference of the housing, the heat flow rate of theair outlet is large, heating can be performed around the circumference of the housing, and the heating range is wide.

The invention discloses a smelting electric furnace waste heat recycling and recirculation system. The smelting electric furnace waste heat recycling system comprises a dust remover, a waste heat boiler, an induced draft fan and a recirculation draft fan. A smoke outlet of the dust remover is connected with a smoke inlet of the waste heat boiler through a smoke-air pipeline. A smoke outlet of the waste heat boiler, a smoke inlet of the induced draft fan and a smoke inlet of the recirculation draft fan are connected through the smoke-air pipeline. The smoke outlet of the recirculation draft fan is connected with a smoke inlet of the dust remover through the smoke-air pipeline. The invention discloses a smelting electric furnace waste heat recycling and recirculation method simultaneously. The recirculation draft fan with appropriate parameters is selected by calculating; and part of low-temperature smoke is extracted from the smoke outlet of the waste heat boiler and led in the smoke inlet of the dust remover. The heat flow of smoke at the smoke inlet of the waste heat boiler is increased, the recovery efficiency of the waste heat boiler is improved, the material heat resistant class is lowered, and the engineering cost is reduced.

The invention discloses a radiator of an infrared radiation gas stove. The radiator comprises a ceramic base plate (1), wherein a plurality of fire outlet holes (11) are formed in the base plate (1). The radiator is characterized by also comprising burners (2), wherein connecting holes (12) are formed in the base plate (1); the connecting holes (12) and the fire outlet holes (11) are formed at intervals in a staggered mode; the burners (2) are inserted into the connecting holes (12) and are protruded out of the upper surface of the base plate (1). The burners form an uneven concave-convex structure, so that the effective radiation area is increased, and the radiation strength is effectively improved.

The invention discloses air vents manufactured in a mode of forming branch air passages on the side wall of a main air passage. The geometric characteristics and quantity of inlets and outlets of the air vents are completely different, but the circulation capability of the inlets and outlets are approximately same. The air vent is characterized in that a plurality of branch air passages are formed on the side wall of the main air passage, thus the air vent taking the plurality of branch air passages as the inlets, taking the main air passage as a transfer passage, and taking openings at the upper end of the main air passage as the outlets are formed, the air vent has the characteristics of high heat flow rate and use safety, can be used for producing a combustor with high heat flow rate, high combustion intensity and centralized flame, and is good for improvement of the combustion reaction temperature and heat transfer intensity.

A heating coil welding fitting comprising a cylindrical coupling body for welding pipelines made of thermoplastics or other weldable plastics, containing at least two heating wire windings, each with a plurality of turns which are at any desired distance from one another, and contacts for feeding the electric current, wherein the heating wire winding is wavy, preferably sinusoidal, and the coupling can be deformed as a result.