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41results about How to "Does not affect cooling effect" patented technology

Integral cylinder cover of water-cooled four-valve diesel engine and corresponding diesel engine water cooling method

The invention discloses an integral cylinder cover of a water-cooled four-valve diesel engine and a corresponding diesel engine water cooling method based on the cylinder cover. According to the cylinder cover, a partition plate for partitioning a water cooling cavity into an upper cavity and a lower cavity is arranged in the water cooling cavity, wherein a water feeding passage for communicating the upper cavity and the lower cavity is formed on one side of the partition plate; a bottom plate is provided with an exhaust duct side exhaust hole corresponding to the water feeding passage; and a water inlet hole and an intake duct side exhaust hole which are communicated with the lower cavity are formed on the other side of the bottom plate. The diesel engine water cooling method comprises the following steps of: circulating water cooling outside a diesel engine cylinder from one side to the other side through a circulating water pump; and flowing the cooling water into the lower cavity from the water inlet hole on the bottom plate of the cylinder cover, then flowing to the upper cavity through the water feeding passage from the lower cavity and flowing out from the water outlet. By arranging the partition plate in the cylinder cover, forced cooling water passes through a nose bridge region so as to guarantee a cooling effect of the noise bridge region and the bottom plate of the cylinder cover; and bubbles produced on the outer wall of the cylinder can be quickly washed away and vapor can be discharged, so that cooling water of high water temperature does not easily occur in the diesel engine.
Owner:GUANGXI YUCHAI MASCH CO LTD

Noise reducing and anti-freezing device outside power plant cooling tower

InactiveCN101377387AStrong sound absorption and noise reduction abilityImprove noise reductionSound producing devicesTrickle coolersCooling towerAnti freezing
The invention provides a noise reducing and antifreezing device used outside a power plant. One of two adjacent noise absorbing plates is fixed with and has an included angle with a horizontal beam, while the other one is arranged in a rotatable way; the cross-sections of the two noise absorbing plates are in a bullet-shape, the effective size of noise absorption is larger, and the gap between the two noise absorbing plates is adjustable, therefore, sound waves produced by a noise source are attenuated repeatedly when passing between the two noise absorbing plates arranged in a slanted way, and the attenuating path is increased; under the conditions of the same distribution density, the effect of noise reduction is more ideal; compared with the prior vertical arrangement proposal, under the same noise reduction conditions, the number of noise absorbing plates adopted by the slanted arrangement proposal of the invention can be reduced by 20 to 40 percent, therefore, the proposal is an ideal proposal to reduce production cost; as the included angle between the two noise absorbing plates is adjustable, the effect of noise reduction can be improved, the cooling tower has antifreezing effect, and the safe and normal operation of the cooling tower in winter is ensured.
Owner:常州金坛塑料厂

Internal core-pulling mechanism for inclined hole of injection-molded plastic piece

The invention provides an internal core-pulling mechanism for an inclined hole of an injection-molded plastic piece. The internal core-pulling mechanism comprises an upper mold plate and a lower mold plate; the upper template is connected with a cavity; a top plate and a mold foot are arranged on the lower mold plate; a mold core is arranged on the mold foot; the mold core and the cavity form a mold cavity; a molded plastic piece is arranged in the mold cavity; a straight top rod is arranged on the top plate; the straight top rod passes through the mold core to contact the plastic piece; an internal pulling block is arranged in the mold core; the internal pulling block is matched with the inclined hole of the plastic piece; the internal core-pulling mechanism is characterized in that: an inclined sliding seat is arranged on the top plate; an inclined chute is made in the inclined sliding seat; a rolling pin is arranged in the inclined chute; an inclined top rod is arranged on the rolling pin; and the inclined top rod passes through the mold core and is connected with the internal pulling block. According to the technical scheme, the internal core-pulling mechanism for the inclinedhole of the injection-molded plastic piece is ingenious in idea and simple in structure, reduces the production cost without additionally applying power, and has no interference in a water path hole of the mold and no influence on the cooling effect of the mold; moreover, the internal core-pulling mechanism can be used for processing all the injection-molded plastic pieces with the inclined holesor inclined blind holes, and has wide applicability and remarkably active effect.
Owner:ZHEJIANG KAIHUA MOLDS

Electronic device cooling system with auxiliary cooling device

ActiveCN103037665ASolve the problem of not getting effective coolingSolve the problem of overheating caused by high temperatureCooling/ventilation/heating modificationsEngineeringElectronic equipment
An embodiment of the invention discloses an electronic device cooling system with an auxiliary cooling device. The electronic device cooling system is used for cooling devices with high heating value in an electronic device machine case. The electronic device cooling system with the auxiliary cooling device comprises a machine cabinet, at least one electronic device machine case which is installed in the machine cabinet, and the auxiliary cooling device. The auxiliary cooling device comprises an air supercharging device, an air supply static pressure box and an air guide device. The air supply static pressure box is arranged on the inner side of the machine cabinet. The air supercharging device is arranged at the top or the bottom of the machine cabinet, and an air outlet on a lateral wall of the air supercharging device is communicated with a corresponding air inlet on a lateral wall of the air supply static pressure box. The air guide device is installed in the electronic device machine case, an air inlet of the air guide device is communicated with an air outlet of the air supply static pressure box, and an air outlet of the air guide device is aligned at the devices in the electronic device machine case.
Owner:深圳市新凯来技术有限公司

Forced circulation evaporation cooling device of hydro-generator stator busbar

Provided is a forced circulation evaporation cooling device of a hydro-generator stator busbar. The stator busbar (12), a condenser (21), a liquid storage tank (30), a cooling device (32), a pump (1), a pressure stabilizing tank (2), a flowmeter (6), a liquid dividing pipe (8), a gas collecting pipe (16), a liquid supply main pipe (3), a gas outlet pipe (18), a liquid return main pipe (27), a total liquid return main pipe (37), a by-pass pipe (4) and an electro-liquid separation joint are connected to form an evaporative cooling circulation loop. An evaporative cooling medium in the loop is driven by a pump. The stator busbar includes one or a plurality of busbar branches, an inlet and an outlet of each busbar branch are respectively connected with the liquid dividing pipe and the gas collecting pipe through the electro-liquid separation joint and an insulation guide pipe, the busbar branches are connected in parallel, and the stator busbar is connected with the pump, the condenser, the cooling device and the like to form the independent evaporative cooling circulation loop. The forced circulation evaporation cooling device enables a plurality of busbars to be combined to form a unified parallel-connection pipeline and builds the independent evaporative cooling circulation loop.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Energy recovery system and method for automobile engine

The invention discloses an energy recovery system and method for an automobile engine. The energy recovery system for the automobile engine comprises an electric-control pump, a steam turbine, a condenser, a liquid storage tank, a controller, a pressure-limiting valve, an energy recovery mechanism, a first heat exchanger, a coolant temperature sensor, a second heat exchanger and a working medium temperature sensor. The coolant temperature sensor, the working medium temperature sensor and the electric-control pump are electrically connected with the controller. The energy recovery mechanism is installed on an output shaft of the steam turbine. The liquid storage tank, the electric-control pump, the first heat exchanger, the second heat exchanger, the pressure-limiting valve, the steam turbine and the condenser form a circuiting flow channel for working media. In the flowing process of the working media, heat of the engine is absorbed through the first heat exchanger and the second heat exchanger, and the energy recovery mechanism is driven by the steam turbine to recover energy. According to the energy recovery system and method, redundant heat of a cooling system and an exhausting system can be fully recovered, the energy utilization rate of fuel oil is increased, and meanwhile normal cod starting of the engine is prevented from being affected.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Machining method of friction welding of forged steel piston

The invention provides a machining method of friction welding of a forged steel piston. The concrete steps are as follows: (1) dividing the steel piston into a piston head and a piston skirt which are respectively machined to be semi-finished products, wherein the shape of an inner cooling oil channel, an oil inlet and an oil outlet of the piston head and the piston skirt are machined to be in the sizes of a finished product, clearance of 1.5-4mm is reserved in the height direction, and a gap is reserved in the position, on one side of the inner-cooling oil channel, on the welding surface of the piston head and the piston skirt; and (2) combining the piston head and the piston skirt into a whole through the friction welding, wherein the gap is right filled with the turnup edge of a friction welding seam, and then carrying out other machining on the piston. The turnup edge is prevented from occurring on the inner side of the cooling oil channel, cooling effect of cooling oil on the top of the piston can not be affected, no turnup edges exist in the inner cooling oil channel, the weight of the piston can be reduced, the load of a connecting rod mechanism can be lightened, due to the fact that the turnup edge is embedded, the phenomenon that the inner turnup edge is scoured by the cooling oil to fall off to form hard particles, and risks including engine scraping and the like are caused is avoided.
Owner:DONGFENG PISTON & BEARING

Method for confirming damage of cooling water pipe of blast furnace cooling wall

InactiveCN102840953AQuick searchQuick and efficient searchMeasurement of fluid loss/gain rateCooling effectAir pump
The invention relates to a method for confirming damage of a cooling water pipe of a blast furnace cooling wall. The method comprises the following steps of: 1) preparing a wind belt before damping down a blast furnace, one end of the wind belt is connected with a blast furnace compressed air pump, the other end of the wind belt is connected with a three-way joint through a valve, a pressure meter is arranged at one side of the three-way joint and a connector is arranged at the other side of the three-way joint; 2) leading out each section of cooling water pipe which needs to be molded after damping down the blast furnace and when the furnace body has no coal gas; 3) utilizing water draining valves of the cooling water pipe to connect the wind belt onto the water draining valves of the cooling water pipe, and molding section by section according to the molding requirements; 4) confirming the damaged cooling water pipe after the molding, changing the pipe to communicate with industrial clean circulation water. Compared with the prior art, the method disclosed by the invention has the beneficial effects that the method has the characteristics of low cost, simple structure, reasonable design, convenience in use, high accuracy and high practicability; and moreover, cooling effects of other cooling walls are not affected, at the same time, the damaged cooling wall can be checked rapidly and effectively, and corresponding measures can be taken in time, so as to improve working efficiency.
Owner:ANGANG STEEL CO LTD

Series type air cylinder cover water channel structure

The invention provides a series type air cylinder cover water channel structure which comprises multiple cylinder covers. The interior of each cylinder cover is provided with a water passage. The positions, used for supporting mold cores, at the two ends of each water passage are provided with series water gaps. The water passages of every two adjacent cylinder covers are communicated through the series water gaps in the corresponding two ends. Annular grooves are formed in the outer edges of the series water gaps. O-shaped rubber sealing rings are embedded in the annular grooves. When the cylinder covers are assembled together, a general series water return channel is formed. The series type air cylinder cover water channel structure has the following beneficial effects that the general water return channel is naturally formed through the water passages in the cylinder covers, the number of components is reduced, cost is saved, compactness is improved, and the installation and operation intensity is lowered. Through reasonable design, the water return channel arranged in the cylinder covers and cooling water sleeves of the cylinder covers are formed into a whole, extra occupation of the internal spaces of the cylinder covers is avoided, and the cooling effect of the cylinder covers cannot be affected.
Owner:CHINA NORTH ENGINE INST TIANJIN

Temperature and pressing measuring device on water-cooling wall surface of combustion chamber and machining method thereof

The invention discloses a temperature and pressing measuring device on a water-cooling wall surface of a combustion chamber and a machining method thereof. The device comprises a pressure-measuring pipe, a temperature-measuring pipe, a temperature-measuring joint nozzle, and a pressure-measuring joint nozzle, the temperature-measuring joint nozzle and the temperature-measuring pipe are integrally welded, the pressure-measuring joint nozzle and the pressure-measuring pipe are integrally welded, the temperature-measuring pipe and the pressure-measuring pipe are welded with a combustion chamber inner wall, a combustion chamber interlayer, and a block together, and the block and a cavity arranged on a combustion chamber jacket are welded together. The machining method includes: finishing of the external surface of the combustion chamber inner wall is performed; temperature-measuring holes and pressure-measuring holes are machined on the combustion chamber inner wall, the combustion chamber interlayer, and the block; the temperature-measuring pipe and the pressure-measuring pipe are welded with the combustion chamber inner wall and the combustion chamber interlayer together; the temperature-measuring pipe and the pressure-measuring pipe penetrate through the temperature-measuring hole and the pressure-measuring hole on the block and are welded with the block together, and the block is welded with the cavity on the combustion chamber jacket together. According to the device and the machining method thereof, the cooling effect of a measuring point area and the structural intensity of the combustion chamber are not affected, and the leakage of cooling media to the inner side of the combustion chamber and the outside of the combustion chamber interlayer is avoided.
Owner:NAT UNIV OF DEFENSE TECH

cooling engine block

The invention discloses a cylinder body structure of a heat engine, and particularly relates to an efficient cooling engine cylinder. The efficient cooling engine cylinder comprises a cylinder body with high-pressure working medium gas expansion inside, an inner cavity of the cylinder body is provided with a jacket embedded on the inner wall of the cylinder body, the jacket is provided with a fluid inner cavity, and a cooling flow way is formed in the fluid inner cavity and is connected with a high-pressure oil cooler and a pressurizing device. By the adoption of the structure, the jacket with a circular cooling channel is arranged in the inner cavity of the cylinder body, the circular cooling channel is sequentially in series connection with a high-pressure oil cooler and the pressurizing device or directly connected with the high-pressure oil cooler and the pressurizing device, and accordingly through introducing of high-pressure cooling oil into the circular cooling flow way, the oil pressure and the pressure of high-pressure working media in the inner cavity of the cylinder body are equivalent; thus, the thickness of the inner cylinder wall can be smaller, the temperature brought by wear between a piston ring and the inner cylinder wall can be absorbed, and according to the efficient cooling cylinder body of the heat engine, no matter how much the thickness of the cylinder body is increased, the cooling effect is not affected.
Owner:太仓市海丰金属制品有限公司

Forced circulation evaporation cooling device of hydro-generator stator busbar

Provided is a forced circulation evaporation cooling device of a hydro-generator stator busbar. The stator busbar (12), a condenser (21), a liquid storage tank (30), a cooling device (32), a pump (1), a pressure stabilizing tank (2), a flowmeter (6), a liquid dividing pipe (8), a gas collecting pipe (16), a liquid supply main pipe (3), a gas outlet pipe (18), a liquid return main pipe (27), a total liquid return main pipe (37), a by-pass pipe (4) and an electro-liquid separation joint are connected to form an evaporative cooling circulation loop. An evaporative cooling medium in the loop is driven by a pump. The stator busbar includes one or a plurality of busbar branches, an inlet and an outlet of each busbar branch are respectively connected with the liquid dividing pipe and the gas collecting pipe through the electro-liquid separation joint and an insulation guide pipe, the busbar branches are connected in parallel, and the stator busbar is connected with the pump, the condenser, the cooling device and the like to form the independent evaporative cooling circulation loop. The forced circulation evaporation cooling device enables a plurality of busbars to be combined to form a unified parallel-connection pipeline and builds the independent evaporative cooling circulation loop.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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