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139results about How to "Heat transfer" patented technology

Vehicle drive device

A vehicle drive device includes: a torque converter having an input-side rotating member to which power from a prime mover is input and an output-side rotating member outputting power to drive wheels; an electric motor coupled to the input-side rotating member; a transmission coupled to the output-side rotating member of the torque converter; and a case member housing the torque converter, the electric motor, and the transmission, the case member having an air chamber and an oil chamber, the prime mover and the electric motor being disposed at positions with the torque converter interposed therebetween in an axial direction, the torque converter being housed in the air chamber, the electric motor being housed in the oil chamber the vehicle drive device further comprising a second electric motor coupled to the output-side rotating member of the torque converter, the second electric motor being disposed between the electric motor and the transmission in the axial direction in the oil chamber, an oil pressure generating device being disposed between the electric motor and the second electric motor in the axial direction in the oil chamber, and a drive gear of the oil pressure generating device being coupled to the input-side rotating member of the torque converter via a first shaft disposed in parallel with an axis on an inner circumferential side of the electric motor, a second shaft parallel to the axis being disposed on an inner circumferential side of the first shaft, a stator impeller of the torque converter being coupled via a one-way clutch and the second shaft to a cover member that is a non-rotating member of the oil pressure generating device, and the second shaft and the cover member being coupled, and an oil passage for supplying an operating oil to the torque converter being made up of a gap formed between an inner circumferential surface of the first shaft and an outer circumferential surface of the second shaft.
Owner:TOYOTA JIDOSHA KK

LED light-emitting module with liquid metal heat dispersion heat sink

The invention relates to a light-emitting module with a liquid metal heat dispersion heat sink, comprising a heat sink flat sheet, an LED light-emitting module arranged on the heat sink flat sheet and at least one driving pump, wherein at least one hollow flow passage is arranged in the heat sink flat sheet, and liquid metal fluid flows in the hollow flow passage; the LED light-emitting module isformed by integrating 1-5000 light-emitting chips; the driving pump consists of a pair of electrode plates respectively installed on a wall surface opposite to each hollow flow passage and a pair of permanent magnet sheets respectively and horizontally arranged on the upper surface and the lower surface of the heat sink flat sheet opposite to each hollow flow passage; the large planes of the pairof electrode plates are perpendicular to the large planes of the pair of permanent magnet sheets; and electrode leads of the pair of electrode plates are led out through pinholes in the wall surface of the hollow flow passage and are electrically connected with an external delay switch module. The electromagnetic pump drives the liquid metals in the hollow flow passage to flow so that LED heat can be transferred to the periphery of the heat sink to be discharged and dissipated. The LED light-emitting module has the advantages of high reliability, no need of maintenance, low noise, energy saving, environmental protection, and the like.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Battery electrode, preparation method of battery electrode and battery

The embodiment of the invention provides a battery electrode. The battery electrode comprises a current collector and an electrode material layer, wherein the electrode material layer is arranged on the current collector; the electrode material layer comprises an electrode active material and sheet-structure graphene; the surface of the graphene is modified with magnetic response nanodots; in thegraphene, more than 50% mass ratio of the graphene is arranged in the orientation with an angle of 45-90 degrees with the surface of the electrode material layer arranged on the current collector so as to form a heat conduction path with the specific orientation. According to the battery electrode, a battery cell material of the battery electrode is provided with the fast heat conduction path withthe specific orientation, so that heat in a battery cell can be effectively transferred outwards to the current collector and then is transferred to the peripheral environment from the current collector, and therefore the problem that in the prior art, the high-temperature performance of a battery is poor due to the fact that the heat generated in a single battery cell cannot be transferred fromthe interior to the environment in time can be solved. The embodiment of the invention further provides a preparation method for the battery electrode and a battery comprising the battery electrode.
Owner:HUAWEI TECH CO LTD

Method for cooling turbine disc and moving blade of combustion gas turbine

The invention relates to a method for cooling a turbine disc and a moving blade of a combustion gas turbine. High-temperature high-pressure air pumped out by an air compressor is divided into two air flows by a sealing structure after being cooled by an intercooler, wherein the two air flows are a cooling air flow and a sealing air flow; the cooling air flow is used for cooling a one-stage turbine moving blade and a one-stage turbine disc respectively, the other sealing air flow enters a channel between the one-stage turbine moving blade and a one-stage static blade to prevent gas from flowing backwards. According to the method, the one-stage turbine disc and the moving blade can be effectively cooled and the sealing effect of the front end of the one-stage turbine disc is achieved; besides, a radial channel in the one-stage turbine disc can achieve a rotary pump effect and a heat-exchange function of the cooling air, so that the cooling method can cool the one-stage turbine disc while performing pressurization and temperature rise on the cooling gas, the cooling air flow rate needed by the one-stage turbine disc and the one-stage turbine moving blade can be ensured, and the thermal stress of the one-stage turbine moving blade is reduced.
Owner:BEIJING HUAQING GAS TURBINE & INTEGRATED GASIFICATION COMBINED CYCLE ENG TECH

Industrial secondary refrigerant

The invention relates to an industrial secondary refrigerant. The industrial secondary refrigerant is composed of, by weight, 80 to 99% of glycol alkyl ether or propylene glycol alkyl ether compounds, 0.1 to 5% of a corrosion scale inhibitor and 0.9 to 10% function-adjusting liquid. According to the invention, the secondary refrigerant is added with the environment-friendly corrosion scale inhibitor which is harmless to the environment and human body, and the corrosion scale inhibitor can adsorb on metal surface and forms a physical adsorption protective film, so dissolved oxygen is blocked from diffusion to the metal surface; meanwhile, a compact passivation antirust film is generated through oxidation reduction reaction of the corrosion scale inhibitor with the metal surface, so metal oxidation is inhibited; moreover, the industrial secondary refrigerant provided by the invention also selects and uses the glycol alkyl ether or propylene glycol alkyl ether compounds with low viscosity, so effects of cold carrying and heat exchanging are guaranteed. The industrial secondary refrigerant in the invention is suitable for being used as the secondary refrigerant applied in industry under minus 80 to 200 DEG C, and an indirect heat transfer system in chemical industrial production and medicinal synthesis process. The secondary refrigerant is non-toxic and harmless, has excellent and safe heat transfer property and good fluidity at low temperature, does not precipitate and scale, and has the characteristics of environmental protection, cold carrying, heat transfer, corrosion inhibition, bacterial inhibition, low viscosity, corrosion resistance, etc.
Owner:CHAOYANG GUANGDA CHEM

Boiler flue gas purifying and heat exchanging device and application method thereof

The invention relates to a boiler flue gas purifying and heat exchanging device. The boiler flue gas purifying and heat exchanging device comprises a boiler, a flue gas purifying chamber, a first heat exchanger, a second heat exchanger and a reverse osmosis membrane set, wherein the boiler is communicated with a flue inlet in the flue gas purifying chamber through a flue gas pipeline, a flue gas outlet in the flue gas purifying chamber is communicated with the second heat exchanger, a liquid outlet in the flue gas purifying chamber is communicated with the first heat exchanger, the first heat exchanger is communicated with the reverse osmosis membrane set, and the reverse osmosis membrane set is communicated with a liquid inlet in the flue gas purifying chamber; the flue gas purifying chamber comprises a casing, a flue inlet pipe, a DC power supply, a negative electrode, a positive electrode, an activated carbon layer and a flue exhausting pipe; circulation liquid is stored in the casing; a coil pipe is arranged on the first heat exchanger, a heat exchanging flue pipe is arranged on the second heat exchanger, and an outlet in the heat exchanging flue pipe is communicated with a chimney. According to the boiler flue gas purifying and heat exchanging device disclosed by the invention, when flue gas is purified through the flue gas purifying chamber, the circulation liquid in the flue gas purifying chamber directly performs heat exchange with the flue gas; the circulation liquid is in direct contact with the flue gas, so that the heat exchanging efficiency is high, and the heat loss is low.
Owner:JIANGSU JINYUAN TENGFENG HEAT EXCHANGE EQUIP CO LTD
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