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33results about How to "Reduce airflow loss" patented technology
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Centrifugal fan and dust collector provided with same
The invention discloses a centrifugal fan and a dust collector provided with the same. The centrifugal fan comprises an impeller and a pressure expander. The pressure expander is arranged on the periphery of the impeller. The pressure expander comprises a plurality of rows of blade sets arranged sequentially from inside to outside. Each row of blade sets comprises a plurality of blades arranged at intervals in the peripheral direction of the impeller. The blades in the multiple rows of blade sets correspond in a one-to-one correspondence mode. At least one row of blades, located on the inner side of the impeller, of the multiple rows of blade sets, deviates from the radial direction of the impeller. The included angles, between the blades in the multiple rows of blade sets and a datum line, from inside to outside are gradually decreased. The datum line is a line connecting the inner ends of the blades in the row, at the innermost side, of the multiple rows of blade sets and the center of the impeller. According to the centrifugal fan, by arranging the multiple rows of blade sets sequentially from inside to outside, the included angles between the blades of the multiple rows of blade sets and the datum line are gradually decreased from inside to outside, airflow can be forced to flow in the radial direction of the impeller, the number of procedures can be decreased, the airflow loss of the centrifugal fan can be reduced, and the efficiency of the centrifugal fan is improved.
Owner:MIDEA GRP CO LTD
Blast protection mixed flow blower for ship
InactiveCN102900685AImprove air intake efficiencyReduce airflow lossPump componentsPump installationsImpellerMotor shaft
The invention relates to a blast protection mixed flow blower for a ship. The blower comprises an air inlet, an axial flow motor, a centrifugal impeller, an inner barrel, an outer barrel, a back-positioned guide vane and an air outlet, wherein the centrifugal impeller is mounted to a motor shaft of the axial flow motor; the axial flow motor is mounted into the inner barrel; the inner barrel and the outer barrel are coupled via the back-positioned guide vane; the air inlet and the centrifugal impeller are cooperatively mounted to one end of the outer barrel; and the air outlet is mounted to the other end of the outer barrel. Through combining the air supply structures of traditional axial flow blower and centrifugal blower, the blast protection mixed flow blower for the ship meets the air quantity and air pressure requirements of the centrifugal blower, and possesses the advantage of installation flexibility of the axial flow blower, and is suitable to be used in ship equipment with high requirement.
Owner:JIANGSU JOSUN AIR CONDITIONER
Range hood, and double-fan system and negative-pressure drainage structure thereof
InactiveCN109425000AImprove the smoke effectReduce lossesDomestic stoves or rangesPump componentsEngineeringAirflow
The invention provides a range hood, and a double-fan system and a negative-pressure drainage structure thereof. The double-fan system comprises a first fan and a second fan, wherein the air inlet ofthe first fan communicates with the inlet of the range hood; the air outlet of the second fan communicates with the outlet of the range hood; the double-fan system also comprises the negative-pressuredrainage structure; the air flow flowing out from the air outlet of the first fan passes through the negative-pressure drainage structure to flow into the air inlet of the second fan; the negative-pressure drainage structure comprises a negative-pressure pressurizing part and a static-pressure forming part; the outlet of the negative-pressure pressurizing part communicates with the inlet of the static-pressure forming part; the air flow flowing out from the air outlet of the first fan flows into the negative-pressure pressurizing part; and the air flow flowing out from the static-pressure forming part enters the air inlet of the second fan. Thus, the range hood provided by the invention has the advantages of good smoke-absorbing effect, low energy consumption and small noise, and can effectively reduce the loss of the air flow during circulation of the air flow between two fans.
Owner:BSH ELECTRICAL APPLIANCES JIANGSU +1
Pneumatic planter uniform low-loss gas path system, and gas distribution method
ActiveCN105359685AReduce lossesReduced Power RequirementsSeed depositing seeder partsRegular seed deposition machinesDistribution methodProcess engineering
The invention belongs to the field of agricultural machine, and relates to a pneumatic planter uniform low-loss gas path system, and a gas distribution method. According to the pneumatic planter uniform low-loss gas path system, gas flow is delivered into a gas inlet pipe (13) of a gas flow distributor (1), and, through a diameter variable joint (12), is divided into a plurality of gas flows with the same gas flow size via a plurality of gas outlet pipes (15) uniformly distributed on a distributor circular plate (11), and then is delivered into a seed outlet pipe (4) via a pneumatic seed discharging unit (3); gas flow is released gradually via gas outlets (41) uniformly arranged on the pipe body of the seed outlet pipe (4) when every certain seed height is reduced, gas flow pressure in the seed outlet pipe (4) is reduced gradually, falling speed of seeds along with gas flow is reduced obviously, and at last the seeds are discharged via a seed outlet pipe seed outlet (42). The pneumatic planter uniform low-loss gas path system is capable of maintaining supply gas pressure of a plurality of lines of seeding unit seed sowing devices to be the same effectively, reducing draught fan power requirements via reducing loss generated in gas distribution process, and reducing pneumatic seed sowing device seed discharging speed obviously via increasing pressure relief of seed discharging process.
Owner:CHINA AGRI UNIV
Radial diffuser and centrifugal compressor
PendingCN110939611APrevent surgeStable structurePump componentsPump controlEngineeringCentrifugal compressor
The invention relates to the technical field of centrifugal compressors, and discloses a radial diffuser and a centrifugal compressor. The radial diffuser comprises a chassis and a plurality of blades, wherein the blades are arranged at intervals along the circumference relative to the center of the chassis. The radial diffuser further comprises a plurality of rotating bodies, wherein each rotating body is provided with a rotating shaft, and the rotating shafts penetrate through the corresponding blades and then are rotationally connected with the chassis; every two adjacent rotating bodies are provided with an adjusting connecting rod therebetween, for each adjusting connecting rod, the rotating bodies located at two ends of the adjusting connecting rod are a first rotating body and a second rotating body respectively, and the adjusting connecting rod is rotationally connected with the first rotating body and the second rotating body respectively; the connecting line between the projection of the rotating shaft on the first rotating body and the projection of the rotating shaft on the second rotating body on the chassis is parallel to and equal to the projection of the adjusting connecting rod on the chassis in length; when one of the adjusting connecting rods is pulled, the rotating body is driven by the adjusting connecting rod to rotate relative to the chassis, and the corresponding blade is enabled to rotate by a set angle.
Owner:新奥能源动力科技(上海)有限公司
Dual-flow-pass fan guide vane adjusting mechanism
ActiveCN108506224AAvoid interferenceReduce airflow lossPump componentsAxial flow pumpsTurbineAirflow
The invention relates to the technical field of aeroturbine engines, in particular to a dual-flow-pass fan guide vane adjusting mechanism. The mechanism is characterized by comprising an acting barrelarranged on an outer casing of an engine, an acting ring is connected with the acting barrel, the acting ring is connected with a dual-flow-pass fan guide vane rotating shaft through a connection rodmechanism, the dual-flow-pass fan guide vane rotating shaft is arranged on the outer casing, dual-flow-pass fan guide vanes are installed on the dual-flow-pass fan guide vane rotating shaft, and theacting barrel drives the acting ring to drive the connection rod mechanism to enable the dual-flow-pass fan guide vane rotating shaft to be rotated so as to rotate the dual-flow-pass fan guide vanes.The fan guide vanes are placed in a regular polygon inner casing annular cavity, interference produced between the fan guide vanes and the inner and outer casings in large-angle range adjustment is avoided, a flow pass can be completely blocked and closed in the 90-degree position, and airflow loss caused by gaps is reduced.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Axial-flow compressor stator blade
InactiveCN102168688AImprove performanceImprove the flow fieldPump componentsPumpsAxial compressorEngineering
The invention relates to an axial-flow compressor stator blade comprising a blade root part, a blade middle part and a blade tip part, wherein the blade root part rightly bends at 15-25 degrees in tangential direction; the stacking line of the blade middle part is a straight line; and the blade tip part rightly bends at 15-25 degrees in tangential direction. The stator blade adopts a three-dimensional design structure with the blade root and the blade tip symmetrical up and down and rightly bending in tangential direction, and can effectively inhibit stalling at a corner area of a hub of a compressor first stage stator with low flow range ahead of a stalling point, on the premise of not reducing efficiency of the compressor and not changing the loss margin of the compressor basically under high flow, thus obviously reducing the air flow loss of the compressor within the range of flow and further improving the efficiency of the compressor well.
Owner:罗钜
General gasoline engine
The invention discloses a general gasoline engine, which comprises a general gasoline engine box body, two general gasoline engine cylinder heads and an upper air passage assembly, wherein the two general gasoline engine cylinder heads are connected with the general gasoline engine box body, the upper air passage assembly surrounds the outside of the general gasoline engine cylinder heads, and comprises a fan cover and a flow guide cover, and the flow guide cover and the fan cover are matched in an inserting connection mode and are used for forming a cooling air passage through which cooling air flows between the two general gasoline engine cylinder heads. Through the inserting and connecting type matching between the flow guide cover and the fan cover, the matching among all components is tighter, the sealing performance of the cooling space is improved, the airflow loss in the cooling space is reduced to the greatest degree, the heat radiation effect is ensured, and the integral structure is compact; in addition, the realization of the structure is simple, the operation is convenient, the dismounting, the mounting and the maintenance are easy, and the replacement is easy.
Owner:LONCIN MOTOR
Brushless motor and impeller thereof
PendingCN113708561AReduce volumeReduce weightMechanical energy handlingElectric equipment installationBrushless motorsImpeller
The invention relates to a brushless motor and an impeller thereof. The brushless motorcomprises a shell, a stator assembly, a rotor assembly, a rear cover, a front bearing, a rear bearing and an air duct system component, wherein the shell is provided with a stator assembly fixing block, the air duct system component comprises a fan cover and the impeller; the fan cover comprises a rear end part provided with a front bearing fixing block, and a front end part; the front end of the stator assembly is fixed on a first central through hole of the stator assembly fixing block of the shell; the rear bearing is arranged in a rear bearing chamber of the rear cover; the rear cover is fixed at the rear end of the shell; the front bearing is arranged in a front bearing chamber of the front bearing fixing block of the fan cover; the rear end part of the fan cover is fixed at the front end of the shell; and the rear end of a rotating shaft of the rotor assembly is inserted from an inner hole of the rear bearing, the front end of the rotating shaft penetrates through an inner hole of the front bearing, and the impeller is fixed to the front end of the rotating shaft and located in a first circular-truncated-cone-shaped containing cavity in the front end of the fan cover. The brushless motor has the advantages of high rotating speed, large suction force, small size, light weight, low noise, high efficiency and the like.
Owner:东莞市驰驱电机有限公司
Dual-drive turbine
InactiveCN111102063ASupercharged quicklyReduce airflow lossInternal combustion piston enginesEngine componentsTurbochargerEngineering
The invention discloses a dual-drive turbine, and belongs to the technical field of turbochargers. The dual-drive turbine comprises a turbine body arranged in a volute, an air inlet channel A and an air inlet channel B which are axially parallel are formed in the volute, the turbine body comprises a closed flow guiding face, a hub and a plurality of blades bent towards the same side, and the lowerends of the blades are fixed to the upper surface of the closed flow guiding face; and a flowing channel interval wall is arranged between the air inlet channel A and the air inlet channel B, a driving face A and a driving face B facing the hub are formed on the surfaces of the blades along air flows flowing out of the air inlet channel A and the air inlet channel B, the edge of the driving faceA abuts against the flowing channel interval wall, the air flow, flowing to the driving face A, of the air inlet channel A forms the air flow A, the air flow, flowing to the driving face B, of the airinlet channel B forms the air flow B, and the air flow A and the air flow B form dual-driving on the turbine. The air flow B can prevent a turbulent flow from being formed at the bottoms of the blades, and the driving force of the turbocharger and the working power of the turbine are increased.
Owner:车行天下网络科技股份有限公司
External coating drying system of non-stick pan production line
PendingCN109107853AImprove efficiencyReduce lossesPretreated surfacesCoatingsProduction lineEngineering
The invention relates to the technical field of non-stick pan production, in particular to an external coating drying system of a non-stick pan production line, the system comprises a high-temperaturefan, a heat preservation box, a gas collecting cavity and an outer coating drying chamber. The heat preservation box is fixedly arranged on the outer coating drying chamber. The high-temperature fanis fixedly installed on one side of the heat preservation box, the other side of the heat preservation box is provided with an air inlet, the gas collecting cavity is fixedly installed on the top of the external coating drying room and communicates with the heat preservation box, a plurality of ventilation holes are uniformly distributed on the bottom plate of the gas collecting cavity, and a flowguide plate is arranged at the ventilation holes. The device provided by the invention has the advantages of small airflow loss, uniform heat distribution, good drying effect and high efficiency.
Owner:YANCHENG FEIYALI MACHINERY
Ventilating machine provided with tight fitting type fan cover
ActiveCN104612803AGuaranteed tightnessCompact structureMachines/enginesEngine cooling apparatusCylinder headAir channel
The invention discloses a ventilating machine provided with a tight fitting type fan cover. The ventilating machine comprises a ventilating machine box body and two side cylinder heads connected with the ventilating machine box body and further comprises the fan cover and an air guide cover module penetrating through an airtight air channel and used for cooling the ventilating machine box body and the two side cylinder heads. Due to the fact that the edge peripheries of the air guide cover module and the fan cover form an airtight through cooling space through right fitting, the leakproofness of the whole cooling space is greatly improved, air flow loss in the cooling space is reduced, and heat dissipation effect is ensured. In addition, in the mode that the fan cover and the air guide cover module form the tight fitting structure, the ventilating machine is more compact in overall structure and capable of saving space.
Owner:LONCIN MOTOR
Gas-leading sealing structure of gas turbine
ActiveCN102889133ASimple sealing structureReduce airflow lossGas turbine plantsJet propulsion plantsGas turbinesEngineering
The invention relates to a gas-leading sealing structure of a gas turbine. The gas-leading sealing structure comprises a shell, a flame barrel, a rotor and a turbine guider hollow blade, wherein an air compressor rotor and a turbine rotor are arranged on the rotor; compressed air channels are formed between the shell and the outer wall of the flame barrel as well as between the shell and the front wall of the flame barrel; and comb tooth sealing structures which are respectively positioned in front of the air compressor rotor, behind the turbine rotor, on the front wall and on the inner wall are arranged on the rotor. Compressed air in the invention can reach the comb tooth sealing structures through the channels and seals lubricating oil and the flame barrel which are arranged behind the air compressor rotor and the turbine rotor, so that the structural design of an engine is simplified and clear; the mass of the engine can be greatly reduced; and therefore, the push ratio optimization is greatly improved, the energy can be effectively saved, and cost can be reduced.
Owner:HARBIN DONGAN ENGINE GRP
Method for mfg. intake manifold for electric injection engine
InactiveCN1435563AImprove sealingReduce processCombustion-air/fuel-air treatmentMachines/enginesAirflowEngineering
A method for manufacturing the intake manifold of electrojet engine includes blanking tube, bending by 180 deg., blanking metal sheet, die pressing, stretching shaping, making pressure-stabilizing box, binding the block with the pressure-stabilizing box, rivetting its periphery, welding the intake manifold to its seat, and welding the holder to the intake manifold. Its advantages are simple technology, good sealing, smooth airflow channel and less loss of airflow.
Owner:哈尔滨志阳汽车电气股份有限公司
Volute, fan and range hood
PendingCN109899322AReduce disturbanceReduce noiseDomestic stoves or rangesPump componentsImpellerRear quarter
The invention provides a volute, a fan and a range hood and relates to the technical field of purification equipment. The volute comprises a coaming and two side plates; the coaming is connected between the two side plates to form an air flue together in an enclosing manner; each side plate is provided with an opening; at least one side plate is provided with a flow guide area; the bottom edge ofthe flow guide area is coincided with the bottom edge of the corresponding side plate; and the flow guide area is inclined inwards from top to bottom. The fan comprises an impeller, a drive device andthe volute; the impeller is installed in the volute; and the drive end of the drive device is connected with the impeller and is used for driving the impeller to rotate. The range hood comprises a box body and the fan; the box body is provided with a smoke suction hole and a smoke exhaust which are mutually communicated; and the fan is installed in the box body. The fan applying the volute is relatively high in performance in the running process and small in generated noise pollution.
Owner:HANGZHOU ROBAM APPLIANCES CO LTD
Cooling duct assembly for general machine
ActiveCN104454112BImprove airtightnessReduce airflow lossMachines/enginesEngine cooling apparatusGasolineAerospace engineering
The invention discloses a cooling air channel assembly for a universal gasoline engine. The cooling air channel assembly comprises a fan cover and a flow guide cover. The flow guide cover and the fan cover are matched with each other in an insertion manner and are used for forming cooling air channels for cooling an engine head of the universal gasoline engine. The cooling air channel assembly has the advantages that the flow guide cover and the fan cover are matched with each other in the insertion manner, so that various components can be closely matched with one another, the airtight property of cooling spaces can be improved, air flow loss in the cooling spaces can be reduced to the greatest extent, radiating effects can be guaranteed, and the cooling air channel assembly is compact in integral structure; the cooling air channel assembly with the structure is easy to implement, detach, mount and maintain and convenient to operate, and is changeable.
Owner:LONCIN MOTOR
Air suction silencer for reciprocating piston type compressor
PendingCN112780525AShorten the lengthShorten the circulation distancePositive displacement pump componentsPositive-displacement liquid enginesPistonEngineering
The invention discloses an air suction silencer for a reciprocating piston type compressor. The air suction silencer comprises a silencing cavity, wherein an air inlet and an air outlet are formed in the silencing cavity, an inner inserting pipe with the two ends communicated with the air inlet and the air outlet correspondingly is arranged in the silencing cavity, and the silencing cavity comprises an expansion cavity and a resonant cavity which are separated; the two ends of the inner inserting pipe are arranged in the expansion cavity and the resonant cavity respectively, the first end located in the expansion cavity directly faces the air inlet or the air outlet, a distance is formed between the air inlet or the air outlet and the first end, and the resonant cavity comprises a first resonant cavity and a second resonant cavity which are separated; and a first silencing hole and a second silencing hole which are respectively communicated with the first resonant cavity and the second resonant cavity are formed in the pipe wall, positioned in the resonant cavity, of the inner inserting pipe, and the time required for airflow to flow to the first silencing hole and the second silencing hole along the inner inserting pipe is the same. According to the air suction silencer, the noise reduction capacity of the air suction silencer is improved while high air conveying efficiency is guaranteed.
Owner:JIAXIPERA COMPRESSOR
A two-component air turbine rocket propulsion system
ActiveCN110131074BBroaden the working Mach numberReduce heat radiationRocket engine plantsCombustion chamberFlight vehicle
The invention relates to an aircraft power system, in particular to a dual-component air turbine rocket propulsion system. The technical problem that existing aircraft power systems cannot meet the requirements of hypersonic aerocrafts for power systems is solved. According to the technical solution, the dual-component air turbine rocket propulsion system comprises an engine shell, a secondary combustion chamber and an exhaust nozzle, all of which are sequentially connected in the gas injection direction; a fairing cone, an axial fan, a connecting shaft, a primary combustion chamber, a gas turbine and a mixing device are arranged in an inner cavity of the engine shell and an inner cavity of the secondary combustion chamber; the outlet end of the fairing cone is connected to an inlet of theaxial fan; the primary combustion chamber is arranged between the axial fan and the gas turbine; an inlet of the primary combustion chamber is connected with a propellant supply pipeline, and an outlet of the primary combustion chamber is connected with an inlet of the gas turbine; an outlet of the gas turbine communicates with an inner runner in the mixing device; and an outer runner formed between the mixing device and the secondary combustion chamber communicates with an outlet of the axial fan.
Owner:XIAN AEROSPACE PROPULSION INST
Fan cover for general gasoline engine
ActiveCN104500205AImproved airtightReduce lossesMachines/enginesEngine cooling apparatusCylinder headGasoline
The invention discloses a fan cover for a general gasoline engine. The fan cover comprises a fan cover body, wherein a base plate used for forming a cylinder head cooling air passage is arranged on the fan cover body through inwards extending in the axial direction. The self structure is compact, the sealing performance of a cooling space is improved, the air flow loss in the cooling space is reduced to the maximum degree, the heat radiation effect is ensured, and in addition, the integral air passage structure is compact. In addition, the fan cover has the advantages that the realization of the structure is simple, the operation is convenient, in addition, the dismounting, the mounting and the maintenance are easy, and the fan cover can be easily replaced.
Owner:LONCIN MOTOR
Forced air cooling general machine housing assembly
ActiveCN104533591BImprove airtightnessAdjustable sizeMachines/enginesEngine cooling apparatusCooling effectForced-air
The invention discloses an outer cover component for a forced cooling ventilator. The outer cover component for the forced cooling ventilator comprises a fan cover and an air director component which is tightly adhered to the circumferential edge of the fan cover to form a through airtight air channel for cooling air circulation; because the air director component is tightly adhered to the circumferential edge of the fan cover to form the airtight through cooling space, the leakproofness of the whole cooling space is greatly improved, and the airflow loss in the cooling space is reduced so as to ensure the cooling effect; in addition, because of the airtight adhering structure of the fan cover and the air director component, the whole structure is more compact, and the space is saved.
Owner:LONCIN MOTOR
A uniform low-loss air path system and air flow organization method for a pneumatic seeder
ActiveCN105359685BReduce lossesReduced Power RequirementsSeed depositing seeder partsRegular seed deposition machinesSeederAgricultural science
The invention belongs to the field of agricultural machinery and relates to a uniform and low-loss air path system and an air flow organization method for a pneumatic seeder. The airflow enters the air inlet pipe (13) of the airflow distributor (1), passes through the reducing joint (12), and is divided into multiple airflow paths with the same size by multiple air outlet pipes (15) evenly distributed on the distributor circular plate (11). The airflow then enters the seeding pipe (4) through the pneumatic seeding device (3). Every time it drops to a certain height, the airflow is gradually discharged from the air vents (41) evenly arranged on the body of the seeding pipe (4), and the seeding pipe (4) The air flow pressure in 4) gradually decreases, and the speed of the seeds falling with the air flow decreases significantly, and is finally discharged from the seed discharging pipe outlet (42). The uniform and low-loss air path system of the pneumatic seeder of the present invention can effectively make the air supply pressure of the individual seed metering devices consistent for each row of seeding, reduce the power demand of the fan by reducing the loss caused by the gas distribution process, and at the same time increase the leakage of the seed metering process. The pressure significantly reduces the seeding speed of the pneumatic seed metering device.
Owner:CHINA AGRI UNIV
Integrated efficient turbine with air outlet constraint structure
InactiveCN108561188AIncreased exhaust back pressureEven airflowStatorsMachines/enginesTurbineAirflow
The invention discloses an integrated efficient turbine with an air outlet constraint structure. The integrated efficient turbine comprises a turbine housing, wherein a turbine and an air outlet diversion trench are arranged in the turbine housing; the air outlet diversion trench is positioned at the air outlet end of the turbine housing, can increase the turbine rear pressure and improves the stability of turbine rear airflow; the initial end of the air outlet diversion trench is close to the turbine; the final end of the air outlet diversion trench extends towards the air outlet end of the turbine housing; and the external diameter of the air outlet diversion trench is gradually increased from the initial end to the tail end. The integrated efficient turbine has the advantages that the turbine front pressure is high, realization of EGR is facilitated, the turbine rear airflow is stable and the turbine is high in efficiency.
Owner:康跃科技(山东)有限公司
A dual channel fan guide vane adjustment mechanism
ActiveCN108506224BAvoid interferenceReduce airflow lossPump componentsAxial flow pumpsEngineeringTurbine
The invention relates to the technical field of aeroturbine engines, in particular to a dual-flow-pass fan guide vane adjusting mechanism. The mechanism is characterized by comprising an acting barrelarranged on an outer casing of an engine, an acting ring is connected with the acting barrel, the acting ring is connected with a dual-flow-pass fan guide vane rotating shaft through a connection rodmechanism, the dual-flow-pass fan guide vane rotating shaft is arranged on the outer casing, dual-flow-pass fan guide vanes are installed on the dual-flow-pass fan guide vane rotating shaft, and theacting barrel drives the acting ring to drive the connection rod mechanism to enable the dual-flow-pass fan guide vane rotating shaft to be rotated so as to rotate the dual-flow-pass fan guide vanes.The fan guide vanes are placed in a regular polygon inner casing annular cavity, interference produced between the fan guide vanes and the inner and outer casings in large-angle range adjustment is avoided, a flow pass can be completely blocked and closed in the 90-degree position, and airflow loss caused by gaps is reduced.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
High-performance long-acting supercharger
InactiveCN111042912AReduce wear consumptionReduce high temperaturePump componentsEngine componentsAir compressionRotational axis
The invention relates to the technical field of internal combustion engines, in particular to a high-performance long-acting supercharger. A rotary shaft is matched with a bearing seat through a thick-film bearing. Annular oil grooves are formed in the inner and outer side walls of a thick film bearing body. Symmetrical oil gathering grooves evenly distributed in the circumferential direction areformed in the annular oil grooves. The rotation direction of the oil gathering groove in the inner side wall is the same as the working rotation direction. The rotation direction of the oil gatheringgroove in the outer side wall is opposite to the working rotation direction. Openings are formed in the ends, connected with the annular oil grooves, of the oil gathering grooves, and the other ends are closed. A main oil channel communicating with a high pressure oil channel of the bearing seat is formed in an air compression cavity. The main oil channel is the fifth channel along with the shapeof the air compression cavity. The main oil channel is further provided with a first channel and a secondary oil channel which communicate with the high pressure oil channel correspondingly. The secondary oil channel and the high pressure oil channel are jointly connected to an oil pan through a communicating part. A lubrication system is redesigned, heat dissipation and coking problems of a traditional turbocharger are solved, and the service life of the supercharger is prolonged while supercharging performance is improved.
Owner:马双斌
General gasoline engine
The invention discloses a general gasoline engine, which comprises a general gasoline engine box body, two general gasoline engine cylinder heads and an upper air passage assembly, wherein the two general gasoline engine cylinder heads are connected with the general gasoline engine box body, the upper air passage assembly surrounds the outside of the general gasoline engine cylinder heads, and comprises a fan cover and a flow guide cover, and the flow guide cover and the fan cover are matched in an inserting connection mode and are used for forming a cooling air passage through which cooling air flows between the two general gasoline engine cylinder heads. Through the inserting and connecting type matching between the flow guide cover and the fan cover, the matching among all components is tighter, the sealing performance of the cooling space is improved, the airflow loss in the cooling space is reduced to the greatest degree, the heat radiation effect is ensured, and the integral structure is compact; in addition, the realization of the structure is simple, the operation is convenient, the dismounting, the mounting and the maintenance are easy, and the replacement is easy.
Owner:LONCIN MOTOR
Gas-gas mixed flame stabilization device
ActiveCN110160083BImprove uniformityImprove flame stabilityContinuous combustion chamberCombustion chamberEngineering
Owner:XIAN AEROSPACE PROPULSION INST
Ventilation cooling device for AC motor
The invention relates to a ventilation and cooling device for an AC motor, which includes a cooling backpack fan, an air duct soft joint and an air duct air collection interface; the cooling backpack fan includes a fan casing, a fan motor installed on the fan casing, and a fan motor installed on the fan casing The inner centrifugal impeller, arc-shaped air collector and air cooling backpack; the centrifugal impeller is installed on the output shaft of the fan motor, the arc-shaped air collector is set on the centrifugal impeller, and the air-cooling backpack is in contact with the arc-shaped collector. The wind device is installed on the outer wall of the air inlet end of the fan casing, the air collection interface of the air duct is installed on the air outlet port of the fan casing, one end of the air duct soft joint is installed on the air collection interface of the air duct, and the other end Connect with the case. The ventilation and cooling device of the AC motor of the present invention can make the temperature rise of the AC motor normal and its winding insulation stable, effectively prevent the insulating material from aging and becoming brittle, prolong the service life of the motor, and the ventilation and cooling device is easy to install, and the ventilation effect is good and stable. High durability and easy maintenance.
Owner:BAOSHAN IRON & STEEL CO LTD
Convection machine with tight-fitting hood
ActiveCN104612803BPass smoothlyImprove airtightnessMachines/enginesEngine cooling apparatusCylinder headEngineering
The invention discloses a ventilating machine provided with a tight fitting type fan cover. The ventilating machine comprises a ventilating machine box body and two side cylinder heads connected with the ventilating machine box body and further comprises the fan cover and an air guide cover module penetrating through an airtight air channel and used for cooling the ventilating machine box body and the two side cylinder heads. Due to the fact that the edge peripheries of the air guide cover module and the fan cover form an airtight through cooling space through right fitting, the leakproofness of the whole cooling space is greatly improved, air flow loss in the cooling space is reduced, and heat dissipation effect is ensured. In addition, in the mode that the fan cover and the air guide cover module form the tight fitting structure, the ventilating machine is more compact in overall structure and capable of saving space.
Owner:LONCIN MOTOR
Semi-Open Centripetal Turbine and Gas Turbine
ActiveCN113062774BImprove performanceImprove reliabilityBlade accessoriesNon-positive displacement enginesEngineeringTurbine
The invention discloses a semi-open centripetal turbine and a gas turbine, which comprise a hub, a disc and blades, the disc is arranged at one end of the hub, the blades are arranged between the hub and the disc, and two adjacent blades form a The turbine airflow passage, the wheel disc includes a wheel back arranged on the hub along the radial direction of the hub, the wheel back is arranged symmetrically along the central axis, a plurality of wheel backs are arranged at intervals along the circumference of the hub, and the wheel backs and blades are arranged in one-to-one correspondence , the wheel back includes a cross-section gradually expanding section, a constant section section and a section tapering section arranged and connected in sequence along the radial direction of the wheel disc. The scraping area dominated by the viscous force at the end blocks the leakage flow dominated by the differential pressure force through the equal section section, thereby reducing the leakage loss of the wheel back. The semi-open centripetal turbine of the present invention has small leakage flow loss and improves the performance and reliability of the semi-open centripetal turbine.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST
Enhanced spraying device of cleaning and sweeping vehicle
ActiveCN113585147AReduce airflow lossImprove spray effectUsing liquid separation agentRoad cleaningAutomotive engineeringMechanical engineering
The invention relates to an enhanced spraying device of a cleaning and sweeping vehicle. The enhanced spraying device comprises a fan connecting pipe, a rear air pipe and a spraying pipe. According to the enhanced spraying device of the cleaning and sweeping vehicle, the air outlet of a fan of the cleaning and sweeping vehicle is guided to the position below the spraying pipe for assisting spraying, the air outlet airflow direction and the spraying direction can be controlled to be consistent all the time when the spraying incidence angle is adjusted, airflow loss is reduced, and the problems that the fixed spraying range of the cleaning and sweeping vehicle is limited and the spraying strength is poor are solved; the spraying effect of the cleaning and sweeping vehicle is effectively improved, and the application range of the cleaning and sweeping vehicle is widened.
Owner:NANJING AEROSUN MORITA ENVIRONMENTAL PROTECTION S&T
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