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1710 results about "Supercharger" patented technology

A supercharger is an air compressor that increases the pressure or density of air supplied to an internal combustion engine. This gives each intake cycle of the engine more oxygen, letting it burn more fuel and do more work, thus increasing power.

Welding fixture for machining turbine shell

The invention discloses a welding fixture for machining a turbine shell, which belongs to the technical field of turbocharger machining and comprises a turntable and adjustable welding clamping mechanisms uniformly distributed in the circumferential direction of the turntable, the adjustable welding clamping mechanism comprises a fixed rack, a movable machine base, an inner supporting type clamping assembly for clamping the turbine shell, an adjustable limiting assembly for positioning the end face of an air inlet of the turbine shell and an adjustable shifting assembly for pushing the turbine shell to rotate. According to the welding clamp for machining the turbine shell, automatic and rapid positioning of the turbine shell can be achieved so that a rocker arm can be welded conveniently, and the welding clamp can adapt to turbine shells of different models.
Owner:FENGCHENG PACIFIC SHENLONG TURBOCHARGER CO LTD

Supercharger rotors for increased engine power output

An apparatus and methods for a rotor pack are provided for a positive displacement supercharger that produces greater engine power output without loss of best seal between the rotors or between the rotors and an interior surface of an enclosing case. The rotors include relief zones and cupped portions at an intake airflow side of each lobe comprising the rotors. The relief zones allow additional airflow to enter the rotor pack while the cupped portions scoop additional airflow into the rotor pack during operation of the supercharger. Tapered radius portions of an enclosing case allow additional airflow to be dragged into the rotor pack. Pressure relief portions on a rotor bearing plate and angled portions on each lobe extend compression events during operation of the rotor pack. The angled portions reduce a margin of the lobes to sharpened edges without affecting the diameter of the margin.
Owner:BRIAN TOOLEY RACING LLC

Turbocharger device

A turbocharger device relates to the technical field of internal combustion engine supercharging devices and comprises a bearing body, an oil supply pipeline and an integrated bearing. The integrated bearing comprises a pressing end integrated bearing and a vortex end integrated bearing which are arranged in parallel in the axial direction, the bearing body comprises a bearing seat inner wall face, a supporting sleeve is rotationally arranged in the bearing seat inner wall face, and the pressing end integrated bearing and the vortex end integrated bearing are located on the two sides of the supporting sleeve; the pressure end integrated bearing and the vortex end integrated bearing are correspondingly connected with a first oil supply pin and a second oil supply pin which are communicated with inner cavities of the pressure end integrated bearing and the vortex end integrated bearing in the radial direction, and the first oil supply pin and the second oil supply pin are fixed to the bearing body. The split type bearing system is used for solving the problems that although a split type bearing system in the prior art avoids the influence of high temperature, engine oil consumption is large, inner oil film lubrication is insufficient, and cost is high; although an integrated bearing system realizes low cost and structure simplification, the key problems of sufficient lubrication of an inner oil film, high-temperature reliability of a thrust surface and oil control capacity of a gas compressor side are obviously short.
Owner:WEIFANG UNIVERSITY

Exhaust turbocharger

An exhaust turbocharger has a housing, in which a shaft is mounted by bearings, which carries a turbine wheel, on the one hand, and a compressor wheel, on the other hand. An electric machine has a rotor and a stator. The rotor is secured on the shaft for conjoint rotation therewith and the stator surrounds the rotor radially on the outside. A sleeve, which supports the rotor radially and axially, is arranged between the stator and the rotor. The sleeve has at least one fluid duct, by way of which a cooling fluid can be guided toward the bearings of the shaft.
Owner:DR ING H C F PORSCHE AG

Internal combustion engine compressed air and electric supercharger ship bubble anti-drag air supply control system

The invention relates to the technical field of power energy and ship resistance reduction, and discloses an internal combustion engine compressed air and electric supercharger ship bubble resistance reduction air supply control system which comprises an internal combustion engine set, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger and an electric supercharger, and the internal combustion engine set serves as a power source of the whole system and generates excessive compressed air by delaying the closing moment of an intake valve during conventional operation; the gas-liquid separator is arranged on one side of the internal combustion engine set and used for separating liquid impurities of the compressed air and discharging the liquid impurities regularly; the filter is arranged on the side, away from the internal combustion engine set, of the gas-liquid separator and used for further filtering the compressed air; the first gas storage tank is arranged on the side, away from the gas-liquid separator, of the filter. Compressed air of the internal combustion engine and exhaust gas of the internal combustion engine are used for replacing traditional independent air compression equipment, the effect of reducing the requirement for additional compression equipment is achieved, the problem that a traditional ship bubble drag reduction air supply system is high in energy consumption is solved, the energy utilization efficiency of ship operation is improved, and the overall energy consumption cost is reduced.
Owner:HARBIN ENG UNIV

Intelligent integrated oxygen production and cooperative regulation and control method for micro-pressure oxygen cabin

The invention relates to the technical field of micro-pressure oxygen cabins, in particular to an intelligent integrated oxygen generation and coordinated regulation and control method for a micro-pressure oxygen cabin, which comprises the following steps: supplying air to a cabin body of the micro-pressure oxygen cabin by adopting an air compressor, stably increasing the pressure in the micro-pressure oxygen cabin and stabilizing the pressure at a preset treatment pressure of 30kPa-50kPa through an intelligent pressure regulation and control system, high-pressure air in the micro-pressure oxygen cabin body serves as an oxygen production source and is conveyed to the VPSA oxygen production main machine; the VPSA oxygen production main machine adsorbs nitrogen through a zeolite molecular sieve filled in the VPSA oxygen production main machine and collects oxygen; s2, pressurizing the oxygen collected in the step S2 to 0.1-0.4 MPa or above through a supercharger, conveying the oxygen back into the micro-pressure oxygen cabin body, and allowing the user to breathe through an oxygen supply device; an intelligent cooperative control system is constructed, integrated management is carried out on the whole process of pressure boosting, pressure stabilization, oxygen generation, oxygen supply, safety and environment regulation and control, the occupied area and the purchase cost of equipment are reduced, the human error risk is reduced, and the micro-pressure oxygen treatment requirement under multiple scenes is met.
Owner:WEIHAI BERLIN VONCON OXYGEN TECHNOLOGY CO LTD +1

Automatic welding equipment for turbocharger machining

The invention relates to the technical field of turbocharger welding, and discloses turbocharger machining automatic welding equipment which comprises a welding table and further comprises a driving clamping mechanism, an automatic welding mechanism, an automatic welding mechanism and an automatic welding mechanism. The two driven clamping mechanisms are arranged on the welding table, located on the two sides of the driving clamping mechanism and used for clamping the two turbines; the two sets of positioning mechanisms are arranged on the two sides of the welding table and used for positioning the turbine; wherein the driving clamping mechanism comprises two fixing seats. Through cooperation of the driving clamping mechanism and the driven clamping mechanism, automatic centering and positioning of a turbine shaft and a turbine are achieved, an adjusting ring in the driving clamping mechanism pushes a sliding rod through an arc-shaped hole, so that multiple clamping rods synchronously move in the radial direction, automatic centering and clamping of the turbine shaft are achieved, and due to the design of an arc-shaped extension clamping plate of the driven clamping mechanism, the clamping efficiency is improved. And when the turbine is clamped, accurate centering with the turbine shaft is completed, the clamping precision and efficiency are remarkably improved, and the error problem existing in traditional manual centering is effectively avoided.
Owner:YANGZHOU HENGDALI POWER CO LTD

Turbocharger capable of improving local oil supply and negative pressure oil leakage capacity

A turbocharger capable of improving local oil supply and negative pressure oil leakage capacity relates to the technical field of turbochargers and comprises a thrust bearing plate arranged between a shaft seal and a thrust sleeve. Thrust oil wedges are arranged on the opposite side walls of the thrust bearing plate, an oil supply channel is formed in the thrust bearing plate and comprises a first oil collection cavity and a second oil collection cavity which are sequentially and annularly arranged from outside to inside, and first oil collection cavity oil outlet holes communicated with the first oil collection cavity are formed in the opposite side walls of the thrust bearing plate correspondingly. And the second oil collecting cavity oil outlet hole is communicated with the second oil collecting cavity. The thrust bearing solves the problem that in the prior art, oil supply is relatively thin in the area with high bearing capacity on the thrust surface of the thrust bearing; and in order to avoid the reliability problem of dynamic and static interference, a gap between a dynamic piece and a static piece forming a labyrinth structure needs to be designed to be large enough, so that the negative pressure resistance oil leakage of the labyrinth structure is limited.
Owner:WEIFANG UNIVERSITY

Pipeline system for improving self-pressurization speed of gas vehicle and reducing inlet gas temperature rise and vehicle

The invention discloses a pipeline system for improving the self-pressurization speed of a gas vehicle and reducing the inlet gas temperature rise and a vehicle, and relates to the technical field of vehicle power system heat dissipation, the pipeline system for improving the self-pressurization speed of the gas vehicle and reducing the inlet gas temperature rise comprises an LNG vaporization pipeline, the LNG vaporization pipeline comprises a gas cylinder and a vaporizer, and the LNG vaporization pipeline is used for outputting vaporized LNG to an engine; the supercharging pipeline comprises a supercharger and an intercooler and is used for supercharging outside air to form high-temperature and high-pressure gas and cooling the high-temperature and high-pressure gas so as to convey the high-temperature and high-pressure gas to an engine intake manifold; the cold and heat energy coupling area, a channel between the gas cylinder and the vaporizer and a channel between the supercharger and the intercooler penetrate through the cold and heat energy coupling area so that heat exchange can be conducted between the high-temperature and high-pressure air and LNG. Cold and heat exchange can be achieved through LNG cold energy and the pressurization pipeline, meanwhile, the vaporization efficiency is improved, and the heat dissipation burden of the intercooler is relieved.
Owner:DONGFENG COMML VEHICLE CO LTD

Air control system and air inlet control method and device of fuel cell

The invention discloses an air control system, an air inlet control method and an air inlet control device for a fuel cell. The system comprises a pressure sensor, a supercharger, an air compressor, a first throttle valve, a second throttle valve, a third throttle valve, a humidifier and a fuel cell stack, the pressure sensor is used for detecting the air pressure value of the air inlet; the first throttle valve and the second throttle valve are opened or closed according to the air pressure value detected by the pressure sensor; and the supercharger is used for supercharging the air at the air inlet and transmitting the air to the air compressor when the air pressure value detected by the pressure sensor does not meet the preset threshold value. Throttle valve control can be carried out according to the pressure detected by the environment pressure sensor, air inlet control treatment is achieved, the air compressor can adapt to different environment pressures, the situation that the air compressor cannot operate normally due to continuous surge caused by insufficient air inlet amount is avoided, it is ensured that the air compressor can operate under the normal condition, and the service life of the air compressor is prolonged. Therefore, the fuel cell stack is ensured to have sufficient oxygen for electrochemical reaction.
Owner:GUANGZHOU GUOHONG HYDROGEN ENERGY TECH CO LTD +1

Engine supercharging system and vehicle

The embodiment of the invention provides an engine supercharging system and a vehicle, and relates to the technical field of vehicle manufacturing. The electronic supercharger is constructed into a two-stage supercharger, the electronic supercharger is provided with a first-stage compressed air flow channel and a second-stage compressed air flow channel, a turbine compressed air flow channel is formed in the turbocharger, and the first-stage compressed air flow channel, the second-stage compressed air flow channel and the turbine compressed air flow channel are distributed in series. And the three-stage compressed air inlets are communicated with the air inlet to form three-stage compressed air inlet to the air inlet. According to the engine supercharging system provided by the embodiment of the invention, gas can be supercharged for three times through the first-stage compressed air flow channel, the second-stage compressed air flow channel and the turbine compressed air flow channel, so that the air compression ratio can be increased, the turbine hysteresis phenomenon is avoided, the air inlet pressure response speed is increased, and transient air supply to an engine is ensured; the operation stability and combustion efficiency of the engine are guaranteed, the fuel economy of the engine is improved, and the driving experience is improved.
Owner:HONEYCOMB WEILING POWER TECH (JIANGSU) CO LTD

Device and method for compressing a medium

A device for compressing a medium is equipped with a compressor unit (2) for compressing a drive medium and with a pressure intensifier (13) operatively connected to the compressor unit, in which a drive piston (15) driven by the drive medium and a high-pressure piston (18a, 18b) cooperating with the drive piston (15) for compressing the medium to be compressed is arranged. According to the invention, hydrogen is used as the drive medium, and the compressor unit (2) comprises a hydrogen storage system (3a, 3b) which has a pressure vessel (4a, 4b) equipped with a metal hydride storage medium (7a, 7b) with at least one supply line (5a, 5b, 6a, 6b) for supplying and / or removing hydrogen into or from the pressure vessel (4a, 4b) and a heating device (8a, 8b) for heating the metal hydride storage medium (7a, 7b) in the pressure vessel (4a, 4b).
Owner:MESSER SCHWEIZ

Apparatuses and methods for a closed crankcase ventilation system of an internal combustion engine

Described herein are engine systems, closed crankcase ventilation systems, and hot filter assemblies that are configured to filter out contaminants from the closed crankcase ventilation system prior to being returned to an air intake of the engine system. In some examples, a closed crankcase ventilation system can include an engine comprising a crankcase, an oil separator coupled to the crankcase, and a hot filter assembly coupled to the oil separator and mounted to an exhaust manifold of the engine or a turbine housing of a turbocharger. The hot filter assembly comprises a housing defining a cavity, a gas inlet fluidly coupled between the oil separator and the cavity, a gas outlet fluidly coupled between the cavity and an air intake of the engine, and at least one baffle extending across the cavity and defining a first and second gas pathways on opposite sides of the baffle.
Owner:DAIMLER TRUCK NORTH AMERICA LLC

Multifunctional Battery Booster

A battery booster for jumpstarting a vehicle having an external battery. The battery booster may include a processor, a set of terminal connectors, a power supply, and a power-management circuit. The set of terminal connectors may be configured to couple with the external battery or an engine that is electrically coupled with the external battery. The power supply may include a lithium battery configured to supply a starting current to jump start an engine. The external battery may have a first nominal voltage, while the lithium battery may have a second nominal voltage that is greater than the first nominal voltage. The power-management circuit operatively coupled with the at least one processor, wherein the at least one processor is configured to transfer power selectively between the external battery and the power supply. The processor is configured to perform a pre-charge function and / or a back-feed function via the power-management circuit, which may employ a pulse width modulation (PWM) driver.
Owner:SCHUMACHER ELECTRIC CORP

Machining device for turbine shaft of turbocharger

The invention relates to the technical field of turbine shaft machining, and discloses a turbocharger turbine shaft machining device which comprises a machining bin and further comprises a visual door plate installed at an open hole formed in the front face of the machining bin and used for opening and closing the visual door plate and taking and placing the turbine shaft. The machining table is fixedly connected to the interior of the machining bin and used for machining the turbine shaft; the clamping mechanism is arranged above the machining table and used for clamping the turbine shaft; and the moving mechanism is arranged above the processing table. By arranging the clamping mechanism and adopting the scheme that a conical groove pushes a plurality of sets of push rods and clamping blocks to synchronously and radially move, high-precision automatic centering of the turbine shaft is achieved, it is guaranteed that the rotation center of a workpiece and the machining center strictly coincide, the machining roundness is guaranteed from the source, meanwhile, a first spring provides uniform clamping force, and the machining precision is improved. And deformation or surface damage of the thin-wall part possibly caused by a traditional rigid clamp is avoided, and rigid-flexible precise clamping is achieved.
Owner:YANGZHOU HENGDALI POWER CO LTD

Time window dynamic adjustment method and system for fault diagnosis of diesel engine supercharger

The invention relates to the technical field of internal combustion engine superchargers, and discloses a time window dynamic adjustment method and system for fault diagnosis of a diesel engine supercharger, and the method comprises the steps: extracting time sequence data of key characteristic parameters of the diesel engine supercharger through mechanism analysis when the fault diagnosis of the diesel engine supercharger is carried out based on deep learning; after preprocessing, inputting into a fault diagnosis model; and adaptively adjusting a time window of the fault diagnosis model based on the principal component analysis result, so that the time window is adjusted according to the fluctuation change of the feature data. According to the method, the time window of the turbocharger in the actual working condition data can be dynamically adjusted, the concept of time domain-feature domain double closed-loop control is utilized, principal component analysis is improved from a traditional dimension reduction tool to a dynamic system regulator, a quantitative mapping model of the window length and the working condition data is established, and on the premise that feature information is guaranteed, the real-time performance of the turbocharger is improved. And the data processing amount of the window can be effectively reduced.
Owner:CRRC ZIYANG CO LTD +1

Improved pneumatic actuator

The improved pneumatic actuator comprises a first shell and a second shell which are detachably assembled together, and an inner cavity is formed after the first shell and the second shell are assembled; the air tap is arranged on the first shell and partially extends into the inner cavity; the device further comprises a driving rod, the driving rod extends into the inner cavity from one side of the second shell, the part, located in the inner cavity, of the driving rod is provided with a piston, the side, facing the second shell, of the piston is provided with a spring, and at least one end of the spring is arranged on an adjusting gasket. A diaphragm is arranged on the side, facing the first shell, of the piston, a sealed air cavity is formed between the diaphragm and the first shell, and the inner end of the air nozzle is communicated to the air cavity. According to the improved pneumatic actuator, the main shell is of a two-half type detachable assembly structure, the main shell can be conveniently disassembled to replace and adjust the internal structure, springs with different elastic coefficients can be conveniently replaced, and therefore the improved pneumatic actuator can be better matched with different operation target working conditions of a supercharger.
Owner:NINGBO WEIFU TIANLI TURBOCHARGING TECH

Turbine and turbocharger

This turbine comprises: a first housing that has a scroll passage; a first platelike member that includes an annular first plate; a second platelike member that includes an annular second plate forming a gas passage between the first plate and the second plate; a second housing that has a facing surface facing the back surface, of the first plate, on a side opposite to the gas passage across a first space; an annular member that is disposed in the first space and that rotates with respect to the first platelike member; a link member coupled at one end to the annular member and coupled at the other end to a variable nozzle vane; a positioning pin fitted at one end in a first hole formed in the back surface of the first plate and fitted at the other end in a second hole formed in the facing surface of the second housing; and a stopper configured such that a first gap is formed between the facing surface, or the first plate, and the stopper, and the first gap is smaller than a second gap between the annular member and the facing surface, and than a third gap between the link member and the facing surface.
Owner:MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD

A decoupling type biomass gasification power generation system and a multi-parameter collaborative control method

The present application belongs to the technical field of biomass energy power generation, and particularly relates to a decoupling type biomass gasification power generation system and a multi-parameter collaborative control method, which comprises the following steps: 1) biomass raw materials are fed into a vertical multi-stage decoupling gasification furnace for gasification, a gasification agent and water vapor are introduced into the decoupling gasification furnace, the amount of the gasification agent and water vapor introduced is adjusted, and the temperature in the reduction zone is controlled at 700-900 DEG C; 2) the gasification products of the decoupling gasification furnace are cooled by a heat exchanger, then filtered by a filter I for the first time, water is removed by a steam-water condenser separator, pressurized by a Roots blower, filtered by a filter II for the second time, and then fed into an internal combustion engine for power generation; and 3) the gas discharged from the internal combustion engine is pressurized by an exhaust gas turbocharger, then compressed by a compressed air generator, and then fed into the decoupling gasification furnace as a gasification agent. The present application has the advantages that the present application can realize in-situ high-temperature catalytic cracking of tar, efficient utilization of waste heat, and stable operation of the system, thereby improving the power generation efficiency and reducing the equipment cost.
Owner:ANSHAN HONGYUAN ENVIRONMENT ENERGY TECH CO LTD

Supercharger performance control method and device of hybrid power system and vehicle

The invention relates to the technical field of vehicle supercharging control, in particular to a supercharger performance control method and device of a hybrid power system and a vehicle. The method comprises the steps that a plateau ignition angle MAP table and a plateau air inlet VVT angle MAP table of the vehicle in a high altitude mode are obtained; a plateau air inlet VVT angle MAP table is corrected, meanwhile, the knocking thrust angle condition of the hybrid power system is checked, and the maximum performance of a current supercharger is determined so as to correct the exhaust gas recirculation rate; calibration limits are generated based on at least part of detonation, preignition, the highest rotating speed of turbine hardware, the combustion center of gravity, the combustion boundary and the HCU series-parallel economic line, and comprehensive test check is conducted based on the calibration limits so that performance optimization can be conducted on the engine. Therefore, the problems that in the related technology, due to the fact that the performance and the response speed of the supercharger in the plateau area are reduced, the actual torque of an engine cannot meet the requirement of a hybrid power system, and then the series-parallel connection switching and electricity protection capacity of the vehicle is affected are solved.
Owner:CHINA FAW CO LTD

Drainage gas recovery device for natural gas extraction

The invention discloses a water drainage and gas recovery device for natural gas extraction, and relates to the technical field of water drainage and gas recovery. The drainage gas recovery device for natural gas extraction comprises a drainage pipe and a drainage pipe, a supercharger is fixedly connected to the upper portion of the box body, an air inlet pipeline is fixedly connected to the lower portion of the supercharger, a drainage pipeline is fixedly connected to the right portion of the box body, a partition plate is fixedly connected to the interior of the box body, a drainage bin is formed below the partition plate, a first hydraulic rod is fixedly connected to the lower portion of a sliding plate, and a second hydraulic rod is fixedly connected to the lower portion of the sliding plate. A first hydraulic pipe is connected to the upper portion of the first hydraulic rod, a second hydraulic rod is fixedly connected to the inner wall of the pressurizing bin, the first hydraulic pipe is connected to the second hydraulic rod, and a first sliding groove is formed in the side of the first hydraulic rod. According to the drainage and gas production device for natural gas extraction, transportation and self-cleaning of natural gas are achieved through the filtering and exhausting assembly, the knocking assembly and the cleaning assembly, and the filtering effect of the natural gas is guaranteed.
Owner:CHANGCHUN XIANGLI TECHNOLOGY CO LTD

System and method of CO2 thermal swing adsorption with wet regeneration and hot drying

A carbon capture system for carbon dioxide (CO2)-thermal swing adsorption (TSA) includes an engine configured to produce a hot exhaust; a plurality of capture vessels that are configured to be respectively cycled through a plurality of stages of a CO2-TSA process; an N2 heat exchanger configured to receive the hot exhaust; and an N2 turbocharger coupled to the N2 heat exchanger. The N2 turbocharger is configured to receive N2 gas from a first capture vessel, heat the N2 gas via the N2 heat exchanger through a thermal exchange with the hot exhaust to produce a heated N2 gas, and provide the heated N2 gas to a second capture vessel in order to dry capture media of the second capture vessel.
Owner:ENHANCED ENERGY GRP

Method, device and equipment for controlling turbocharger and readable storage medium

Embodiments of the present application provide a turbocharger control method, device, equipment and readable storage medium. The method comprises: obtaining a running condition corresponding to a vehicle; determining a surge line corresponding to a turbocharger, the surge line being used to represent airflow oscillation phenomenon of gas along the axial direction of the compressor; in the case that the running condition and the surge line meet a preset relationship, adjusting a first opening angle of a waste gate valve, or adjusting a second opening angle of a vehicle power pedal. The purpose of making the running condition of the vehicle away from the surge line is achieved, and then the turbocharger is in a normal working state, avoiding the turbocharger emitting high-frequency Hiss noise to bring negative driving experience to the driver.
Owner:WUHU ACTECO POWERTRAIN CO LTD +1

Device for increasing temperature of tail gas of hydrogen internal combustion engine and enhancing pressurization

The utility model relates to the technical field of hydrogen internal combustion engines, in particular to a device for increasing tail gas temperature of a hydrogen internal combustion engine and enhancing pressurization. Comprising the steps that an exhaust hydrogen combustion device and an electronic control unit are additionally arranged on an original exhaust manifold of an internal combustion engine, an auxiliary combustion chamber is installed on the upstream of a turbocharger, the oxygen exhaust flow is calculated through an exhaust flow sensor and an oxygen concentration sensor, the hydrogen spraying flow of a hydrogen nozzle is determined, and hydrogen-air mixed gas is ignited through a sparking plug; therefore, the tail gas enthalpy value of an inlet of the turbocharger is increased through combustion of hydrogen in the auxiliary combustion chamber, the supercharge ratio is increased, and then the inflation efficiency and the power density of the hydrogen internal combustion engine are improved.
Owner:CRRC QISHUYAN CO LTD

Method for rapidly predicting performance of gas compressor of vehicle turbocharger

The invention is suitable for the technical field of turbochargers, and provides a method for rapidly predicting the performance of a gas compressor of a vehicle turbocharger, which comprises the following steps of: obtaining a gas compressor performance MAP graph and structural parameters through a test; the performance of the gas compressor is predicted through the one-dimensional prediction model; obtaining the pressure ratio and efficiency deviation of the model prediction value and the test value under different working conditions; carrying out dimensionless conversion on the pressure ratio and the efficiency deviation through design point data, and constructing a machine learning training data set; training and verifying the dimensionless deviation by using machine learning; new compressor geometric parameters are calculated through a one-dimensional design program according to new design point requirements; performing performance prediction on the new gas compressor through the one-dimensional prediction model; and the new compressor performance predicted value is corrected through a machine learning model, and an accurate compressor performance MAP graph is obtained. According to the method, machine learning and a physical model are combined, and the performance characteristics of the turbocharger compressor can be accurately obtained under the condition that a large amount of workload is saved.
Owner:JILIN UNIVERSITY

Design method of supercharger guide vane with adjustable vortex cross section

The invention discloses a supercharger guide vane design method with an adjustable vortex cross section, and relates to the technical field of turbochargers, the method comprises the following steps: constructing a multi-objective optimization model, and adopting a non-dominated sorting genetic algorithm to search a Pareto optimal solution; defining a parameterized section model composed of a leading edge ellipse-smooth transition structure, a segmented cubic Bezier mean camber line and a variable trailing edge; a multi-degree-of-freedom linkage mechanism comprising a miniature shape memory alloy driver array is designed, and the overall deflection and local deformation of the blade are cooperatively adjusted; establishing a real-time feedback control logic based on an engine working condition signal, and dynamically outputting a target flow area and a section form parameter; the vortex intensity and the vortex core position are actively controlled by synchronously adjusting the throat position, the width and the airflow emergence angle; and carrying out verification and iterative optimization in combination with high-fidelity transient CFD simulation. According to the method, the isentropic efficiency of the turbine under all working conditions is remarkably improved through multi-dimensional cooperative regulation and control, and the flow stability and the system reliability are enhanced.
Owner:WUXI KAILITE POWER TECH CO LTD

Air purifier

The air purifier of the present disclosure includes: a body having an inlet formed on an circumference surface thereof and an outlet formed on an upper surface thereof; and a booster disposed at an upper side of the body, and discharging air in one direction on the circumference surface through a booster outlet. The body includes a fan disposed inside the body and making air flow from the inlet to the outlet, a fan housing having a space in which the fan is disposed, a filter disposed at a lower side of the fan housing, and filtering air introduced through the inlet, and a filter frame extended to a lower side from the fan housing, and supporting a space in which the filter is disposed. The filter frame is disposed to withdraw the filter in a direction faced by the booster outlet.
Owner:LG ELECTRONICS INC

Turbocharger overspeed protection system

The invention relates to the technical field of automobile superchargers, and particularly discloses a turbocharger overspeed protection system which is characterized in that an air mass flow meter is connected to the air inlet end of an air compressor, a turbine is connected to the exhaust end of an engine, and the turbine is connected with the air compressor through a transmission shaft; the waste gas bypass mechanism is arranged at the air inlet end and the exhaust end of the turbine in parallel. The rotating speed sensor is used for detecting the rotating speed of the transmission shaft. Based on a safety overspeed area range preset by an electronic control unit, the fuel injection quantity of an engine and the opening degree of a waste gas bypass mechanism are dynamically adjusted according to data parameters fed back by a first detection unit, an air mass flow meter and a rotating speed sensor; namely, the exhaust state of the engine is actively intervened by regulating and controlling the oil injection quantity and precisely distributing waste gas, so that the energy for driving the turbine is indirectly controlled, the rotating speed of the turbocharger is always within a safe set range, and the running reliability and stability of the turbocharger are improved.
Owner:JIANGSU EASYLAND AUTOMOTIVE CORP

Full-automatic machining system and method for turbocharger impeller

The turbocharger impeller full-automatic machining system comprises a feeding mechanism, outer contour machining equipment, blade machining equipment and cleaning equipment, feeding and discharging of material blanks sent by the feeding mechanism and position switching between the outer contour machining equipment are achieved through clamping jaws on a transfer cross beam, and the machining efficiency of the turbocharger impeller is improved. The reversing mechanism is used for conducting automatic reversing outline machining operation on a blank, the clamping jaw can be matched with the cleaning box and the outer diameter detection chamber to achieve detection of the outer diameter, and a workpiece meeting the size requirement is fed into blade machining equipment for blade machining. When the blade is machined, the blowing and sucking workbench is adopted to fix a workpiece and clean a profiling surface, the quality problems such as dents on the bottom cambered surface of the workpiece are avoided, and full-automatic machining operation of the impeller is finally completed through automatic cleaning of the cleaning equipment.
Owner:MAANSHAN FANGYUAN POWER TECH

Exhaust temperature increasing method, system and equipment and computer readable storage medium

The invention discloses an exhaust temperature increasing method, system and device and a computer readable storage medium, and relates to the technical field of internal combustion engine tail gas treatment, and the method specifically comprises the steps that target conversion efficiency corresponding to the real-time exhaust temperature is determined according to the exhaust temperature and a preset mapping relation table between the exhaust temperature and the conversion efficiency; when it is detected that the target vehicle is in the low-load working condition, the target opening degree of an inter-cooling throttle valve is determined based on the target conversion efficiency, the real-time supercharger outlet temperature and the real-time supercharger flow; and the opening degree of the intercooling throttle valve is controlled according to the target opening degree, so that the exhaust temperature is increased. The exhaust temperature can be increased on the premise that the energy utilization efficiency and hardware safety are guaranteed.
Owner:DONGFENG AUTOMOBILE COMPANY