44results about How to "Increased heat exchange surface" patented technology

A device which is used to cool the power electronics of a vehicle, by circulating a liquid through a cooling circuit which is mounted under a plate bearing the power electronics. According to the invention, the cooling circuit can include deflectors and / or turbulators in order to increase the exchange coefficient between the cooling circuit and the cooling liquid. The invention also relates to a method of producing the device.

A disc brake pad including a brake lining having at least one friction surface, and provided with a heat dissipating structure which circulates the heat to be dissipated in one or more directions substantially parallel to the plane of the friction surface. The structure is arranged in the lining and / or in a carrier plate if there is one, or at the interface. The structure may be formed from cylindrical holes with axes following one or more directions substantially parallel to the friction surface. These holes are through holes, such that the air can freely pass therethrough. The structure may also be formed from projections at the periphery of the carrier plate, optionally fitted with cooling fins, or bars which are good heat conductors enclosed a component of the pad.

The invention concerns a current-rectifying arrangement for rotary electrical machines of the type comprising a support (50, 51, 51') for a plurality of positive diodes (66), a support for a plurality of negative diodes, forming part of the rear bearing of the machine, and a device for cooling by the creation of a forced axial flow of a cooling fluid through the rectifying arrangement, the support for the positive diodes carrying radial cooling fins (60) on its front face oriented towards the axis of the machine; the positive diode support device (66) being produced in the form of at least one moulded piece (50, 51, 51'), whose face oriented towards the aforementioned axis carries fine cooling fins (60). The invention can be used in alternators for motor vehicles.

A thruster for exo-atmospheric vehicles with electro-thermal thrust augmentation and having internally embedded heating elements for direct contact heating of gaseous products released by a propellant, particularly hydrazine, so as to increase the Specific Impulse (Isp) of the thruster. The electrical heating elements are resistant to hydrazine products. The thruster is configured as a closed sealed chamber divided into a decomposition section upstream and a heating section downstream. At least one heating element is disposed in the heating section, directly in a mixture catalyst forming a porous bed, or within a concentric ceramic tube operative as a heat exchanger, to heat the gaseous products by direct contact. The heater indirectly heats the catalyst in the decomposition section and directly heats the heating section. The thruster is operable both in space and at sea-level gravity and barometric pressure.

The invention relates to a temperature exchanging element made by extrusion and able to receive a heating element and / or heat conducting element, and radiation fins. It is constituted of a single-piece base incorporating an external face equipped with means to receive the radiation fins, and an inner face equipped with at least one means to integrate the heating and / or heat conducting element, said reception and integration means being made during the extrusion of the base. Application to the manufacture of a radiation module, a dryer, an air conditioner, a solar energy collection device.

The present invention discloses a heat exchanger tube for a heating system, which is suitable for any kinds of heating systems mounted in doors. The heat exchanger tube comprises a tube body, in which a plurality of lobes are formed on an outside surface of the tube body around the peripheral of the tube body and a plurality of ribs are formed on an outside surface of the tube body along the length of the tube body. Each of the ribs is inclined with respect to the longitude axis of the tube body by an angle of about 15 degree. The advantages of the present invention are in that: 1. the ribs could increase the heat exchanging surface; 2. the lobes could increase the heat radiating surface; and 3. as the heat exchanger tube is made of aluminum or aluminum alloy, the heating medium would not be polluted by rust generated in iron tubes.

A refrigeration circuit (3) for household appliances comprises a first heat exchanger (5) or condenser in fluid communication with a compressor (4) for allowing the cooling and the consequent condensation of the cooling fluid going through, and a second heat exchanger (7) or evaporator in fluid communication with the first exchanger (5) through a circuit with a special device (6) suitable for decreasing the pressure of the cooling fluid at a space (2) to be cooled. The second exchanger (7) allows the cooling fluid to evaporate, absorbing heat, thus cooling the space (2) and returning through the tubing (17) to the compressor (4). At least one of the heat exchangers (5, 7) comprises a plastic tubing (9), at least a portion whereof exhibits such corrugated profile as to impart flexibility thereof and / or increase the thermal exchange surface.

The invention discloses a flexibly-packaged cell water-cooling module mechanism of a flexibly-packaged battery cooling system used for an electric vehicle, and aims to solve the problems of high probability of puncturing, large dimensional tolerance, complex assembling process, difficulty in dissipating single cell heat, and the like when an aluminum plastic film is used as external protection in an assembling process. The flexibly-packaged cell water-cooling module mechanism is characterized in that each flexibly-packaged cell is protected by a frame; an insulating water-cooling heat dissipation sheet is arranged on one side of each flexibly-packaged cell; capillary holes are formed in the insulating water-cooling heat dissipation sheet for performing heat exchange with the surface of the flexibly-packaged cell; a foaming plate with buffering and damping effects is arranged on the other side of the flexibly-packaged cell to eliminate expansion of the flexibly-packaged cell; a group of the flexibly-packaged cells are connected in series and in parallel to form a cycling structure of the insulating water-cooling heat dissipation sheet plus the flexibly-packaged cell plus the foaming plate and plus the insulating water-cooling heat dissipation sheet and the like; a cell tab is connected with a current converging plate through an ultrasonic wave welding way; coolant liquid and outlet are formed in end plates; and a liquid flow loop is formed in a module by the coolant. By virtue of the flexibly-packaged cell water-cooling module mechanism, a good heat dissipation effect and long service life of the battery are realized.

The invention discloses an adjustable solar street lamp illuminating system. The adjustable solar street lamp illuminating system includes a lamp post, the top of the lamp post is provided with a horizontal support seat which is provided with two linear sliding rails in parallel, the same one double-shaft air cylinder is horizontally arranged between the two linear sliding rails, and two piston rods of the double-shaft air cylinder separately and horizontally extend out to be fixedly connected with location sliding blocks of the linear sliding rails; and the location sliding rails are vertically connected with frame body support seats, the upper portions of the frame body support seats are movably connected with solar panel mounting frames, a post body of the lamp post is provided with a wind power generation device, and the lamp post is internally provided with an accumulator and a microcontroller. Compared with the prior art, according to the adjustable solar street lamp illuminatingsystem, the inclined angles of the solar panel mounting frames and the overturn angles of solar panels are regulated to improve the use ratio of the solar panels, and the wind-collecting area is improved through a wind wheel unit; many a little makes a mickle, so that the generating efficiency is improved, the assembly and the maintenance of modularity lamp holders are convenient, and the numberof the lamp holders can be regulated according to the need; and through the regulation of the lamp holder angle, the illumination demands for various roads can be achieved.

The present invention concerns a heat exchanger (1; 1') comprising a device (2) for circulating a first heat-transfer fluid having an inlet (3) for first heat-transfer fluid and an outlet (4) for first heat-transfer fluid, between which a first heat-transfer fluid is intended to circulate, characterised in that the heat exchanger comprises a housing (5) receiving the device (2) for circulating a first heat-transfer fluid, the housing (5) comprising: - at least one opening (7) for inserting the inlet and outlet (3, 4) for first heat-transfer fluid of the device (2) for circulating a first heat-transfer fluid, - an inlet (8) for second heat-transfer fluid and an outlet (9) for second heat-transfer fluid, between which a second heat-transfer fluid is intended to circulate. The present invention also concerns a thermal management facility (100) for batteries of electric or hybrid vehicles.

The invention discloses an efficient flue heat exchanger which comprises an exchange core (1), an outer pipe (2), a left end box (3) and a right end plate (4), wherein the exchange core is a rectangular pipeline made of square pipe steel through welding in a surrounding manner; heat dissipation convex ribs made of flat steel are welded at the periphery of the outer wall of the exchange core; heat absorption convex ribs made of the flat steel are welded at the periphery of the inner wall of the exchange core; the outer pipe is a rectangular pipe formed by an inner layer and an outer layer; the exchange core is fixed in the pipe cavity of the outer pipe; the channel formed by the inner wall of the outer pipe and the outer wall of the exchange core in a surrounding manner is called an outer channel; the inner pipe cavity of the exchange core is called an inner channel; during the operation, the exchange core is heated by incandescent flue gas through the inner channel, air used for air blasting and combustion supporting is heated to be hot air by the exchange core; by using the technical scheme that the heat exchange surface of the exchange core is enlarged through the large surfaces of the square pipe steel and the flat steel to improve the heat exchange efficiency, the purposes of enlarging the heat exchange surface and improving the heat exchange efficiency of the flue heat exchanger are achieved.

A ventilated braking band for brake disc having a first plate and a second plate; the first plate has at least a first inner surface, and the second plate has a second inner surface. The first inner surface defines a first inner surface plane or level (z1-z1) coinciding with said first inner surface, and the said second inner surface defines a second inner surface plane or level (z2-z2) coinciding with the second inner surface. The ventilated braking band has connecting elements which extend in an axial direction between the first inner surface and the second inner surface. The ventilated braking band has at least one bulge. The at least one bulge is partially interpenetrated with: at least one portion of the first foot, thus forming a structural continuity with the first foot, thus avoiding the first inner surface level from being reached; or at least one portion of a second foot, thus forming a structural continuity with the second foot, thus avoiding the second inner surface level from being reached.

This invention proposes a domestic apparatus for water purification, which is based on evaporation-condensation principle and operates under atmospheric pressure. Evaporation process is performed in this apparatus by simple evaporation from the surface of hot tap water without boiling process. The purifier can be easily disassembled and cleaned from scaling.

The invention discloses a washing machine with a heat exchanger. The washing machine comprises an external barrel; a first permanent magnet is arranged at the upper end of the outer side of the external barrel; and a second permanent magnet is arranged at the inner side of a case correspondingly. In addition, a heat exchanger is arranged at the inner side of the case and is provided with a hot and humid air inlet, a cold air outlet, a hot and humid air outlet, and a cold air inlet; the cold air outlet, a fan, and an electric heater are connected by a pipeline to form a first air duct; and the first air duct is connected with the space at the inner side of an internal barrel by a warm air supply inlet. A hot and humid air exhaust port is formed in an external barrel cover; the hot and humid air exhaust port is connected with the hot and humid air inlet by a pipeline; the hot and humid air outlet is connected with a three-way unit by a pipeline; and another two connecting ends of the three-way unit are connected with an air outlet and a draining pipe. The cold air inlet, a filter, and an air suction inlet are connected by a pipeline to form a second air duct.

The invention discloses an ultrasonic nanometer cooling device for a computer mainboard. The device comprises a bearing plate, an air inlet fan, an exhaust fan, an ultrasonic conduction device and a CPU cooling device, a left ventilation hood and a right ventilation hood are arranged on one side wall of the bearing plate, fixing plates are welded to the inner side wall of the left ventilation hoodand the inner side wall of the right ventilation hood, the air inlet fan is installed in the left ventilation hood through the fixing plates, and the exhaust fan is installed in the right ventilationhood through the fixing plates. An aluminum alloy sliding sleeve sealing cover on a nanometer heat conductor on one side of an aluminum alloy heat dissipation plate is attached to the back face of aCPU; heat generated by the CPU is transferred to the metal nanoparticles in the metal nano box through the aluminum alloy sliding sleeve sealing cover; due to the fact that the ultra-thin vibration piece on the aluminum alloy sliding sleeve sealing cover receives sound waves emitted by the ultrasonic vibrator to generate the resonance phenomenon, the ultra-thin vibration piece can enable the metalnanoparticles to vibrate, the heat exchange surface between the metal nanoparticles is enlarged, and then the heat is completely transmitted to the aluminum alloy heat dissipation plate and dissipated.

The invention discloses a heat exchanger for a washing machine. The heat exchanger comprises a shell and one or more heat exchange tubes, wherein the heat exchange tubes are arranged in the shell, a damp and hot air inlet and a cold air outlet are formed in the upper side of the shell, and a damp and hot air outlet and a cold air inlet are formed in the lower side of the shell. According to the washing machine additionally provided with the heat exchanger, damp and hot air can be led into the heat exchanger after being used for drying clothes, an inner cylinder and an outer cylinder, then the damp and hot air preheats cold air to be heated by an electric heater in the heat exchanger, and in this way, the heat energy utilization rate of the washing machine can be increased; meanwhile, electricity consumption is reduced in the drying process of the washing machine.