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696results about How to "Increase air intake" patented technology

Engine cooling system and cooling method

The invention discloses an engine cooling system and a cooling method. The cooling system comprises a water pump, a double-valve temperature regulator, a machine oil cooler, a water jacket of a cylinder body, a water jacket of a cylinder cover, a water tank radiator and an EGR cooler. The cooling system adopts a water passage circulation as follows: when the engine is started, the water pump begins to work; cooling liquid firstly flows into the machine oil cooler and enters in the water jacket of the cylinder cover to cool the key area of the cylinder cover, and then enters in the water jacket of the cylinder body from a gasket circulating hole of the cylinder cover to cool the cylinder body and the EGR cooler. The cooling liquid in the cooling system firstly cools the cylinder cover to reduce the temperature of the cylinder cover by 10 DEG C to 15 DEG C, enhance aeration efficiency, enlarge air inlet quantity, promote complete combustion, reduce the formation of discharge objects andenhance output efficiency; After cooling the cylinder cover, the cooling liquid enters in the cylinder body for cooling the cylinder body; the higher temperature of the cylinder body can reduce friction, improve fuel efficiency, enhance the output efficiency and reduce peak value pressure and temperature in the cylinder.
Owner:CHERY AUTOMOBILE CO LTD

Low-pollution combustion chamber adopting fuel-grading and three-stage cyclone air inlet

The invention discloses a low-pollution combustion chamber adopting fuel-grading and three-stage cyclone air inlet. The low-pollution combustion chamber comprises an on-duty oil supply nozzle, a primary-combustion oil supply nozzle, three-stage cyclones and a flame tube. Fuel is respectively provided for the on-duty oil supply nozzle and the primary-combustion oil supply nozzle in two ways, and the three-stage coaxial cyclones supply air to the head of a combustion chamber. The two stages of cyclones on the inner side of the combustion chamber refer to an oblique-cutting hole cyclone and a radial cyclone, cyclone of the two-stage cyclones are in opposite directions. A centrifugal atomizing nozzle is arranged at the center of the oblique-cutting hole cyclone, and the second-stage cyclone on the inner side are combined and matched with a center on-duty nozzle. The cyclone on the outside of the combustion chamber is a radial cyclone with cyclone direction opposite to that of a second-stage cyclone. Primary combustion fuel enters a cyclone blade channel from small holes of a front wall surface of a third-stage cyclones by way of multipoint direct injection and is accelerated to be crushed and atomized in a cyclone channel to be mixed with the air, and forms premixed or partly premixed fuel-air mixture at an exit of the tertiary swirling influx to enter a primary combustion zone to be combusted. The low-pollution combustion chamber is applicable to aircraft engine combustion chambers or industry fuel turbine combustion chambers.
Owner:中科航空动力(株洲)装备制造研究院有限公司

Air intake manifold with integrated air track

The invention relates to an air intake manifold with an integrated air track, which comprises an air throttle (1) of an air inlet of an engine, a resonant cavity (2) of the air intake manifold, a plurality of branch pipes (3) of the air intake manifold, and a connecting flange (4), wherein the air throttle (1) at the upper end of each branch pipe (3) of the air intake manifold is communicated with the resonant cavity (2) of the air intake manifold; and air outlets at the lower parts of the branch pipes (3) of the air intake manifold are respectively connected with cylinder covers through the connecting flange (4). The air intake manifold is characterized in that the air intake manifold further comprises the air track (5) and a plurality of air track connecting branch pipes (6), wherein the air track connecting branch pipes (6) are corresponding to the branch pipes (3) of the air intake manifold one to one; and the air track (5) is communicated with the lower end of each branch pipe (3) of the air intake manifold through the corresponding air track connecting branch pipe (6). When the air intake manifold is fully loaded, resonance effects achieved at low rotating speeds and trough rotating speeds can be optimized, so that the air intake quantity is increased; when the air intake manifold is partially loaded, pumping loss of the engine is decreased, the fuel consumption rate is reduced, and the requirements for buses in different working conditions can be satisfied.
Owner:CHERY AUTOMOBILE CO LTD

Rotary gas valve control mechanism

The invention discloses a rotary gas valve control mechanism and belongs to the technical field of mechanical design. The rotary gas valve control mechanism comprises a gas compressor, an engine, a turbine, connecting pipes, a valve seat, a valve body, a rotary shaft, an accommodating cavity, a rotator and an elastic component, wherein the rotator is mounted in the accommodating cavity and is in sealed contact with the inner wall face of the accommodating cavity, the lower wall face of the rotator is connected with the lower wall face of the accommodating cavity through the elastic component, two ends of a first connecting pipe are communicated with gas inlets of an engine exhaust pipe and an accommodating chamber respectively, and two ends of a third connecting pipe are communicated with the engine exhaust pipe and the upper wall face of the accommodating cavity. When the engine exhaust pipe is high in pressure, the rotator drives the valve body to rotate clockwise, exhaust gas recirculation rate of the engine is large, and the engine is low in explosion pressure; and when the engine exhaust pipe is low in pressure, the rotator drives the valve body to rotate anticlockwise, the exhaust gas recirculation rate of the engine is small, and oil consumption of the engine is low. The rotary gas valve control mechanism is reasonable in design, simple in structure and applicable to an exhaust gas recirculation system of the supercharged engine.
Owner:SHANGHAI JIAO TONG UNIV

Rotor clutch type motor-driven power generation turbocharger and auxiliary control circuit and control method thereof

The invention relates to a rotor clutch type motor-driven power generation turbocharger and an auxiliary control circuit and a control method thereof. A motor-generator, an electromagnetic clutch device and the auxiliary control circuit are installed on a turbine rotor of the turbocharger, wherein the electromagnetic clutch device and the auxiliary control circuit can control combination and separation between the motor-generator and the turbine rotor, and the motor-generator and the electromagnetic clutch device are both connected with the auxiliary control circuit through conductive wires. Under the control of the auxiliary control circuit, the turbocharger is respectively in three working states of motor-driven auxiliary supercharging, outage no-load and power generation energy storage. The electromagnetic clutch device is installed to achieve timely combination or separation between the motor-generator and the turbine rotor of the turbocharger. Rotational inertia of the turbine rotor is reduced, energy loss is reduced, stability and reliability of operation of the turbocharger are improved, fuel energy is effectively utilized, and efficient distribution and utilization of energy of the turbocharger are achieved. The rotor clutch type motor-driven power generation turbocharger has the advantages of being flexible and accurate to control.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Water-circulating-type thermal energy comprehensive utilization thermal management system for electric vehicle

The invention relates to a water-circulating-type thermal energy comprehensive utilization thermal management system for an electric vehicle, the vehicle comprising the thermal management system and an operation method of the thermal management system. The water-circulating-type thermal energy comprehensive utilization thermal management system for the electric vehicle comprises a refrigerant circulating loop and further comprises a water circulating loop. The refrigerant circulating loop comprises a refrigerant circulating primary road and two refrigerant circulating branches; an electronic compressor and a water-cooled condenser are arranged on the refrigerant circulating primary road; the first refrigerant circulating branch is provided with an evaporator electronic expansion valve andan air conditioning evaporator; and the second refrigerant circulating branch is provided with a water-cooled heat exchanger electronic expansion valve and a water-cooled heat exchanger. The water circulating loop comprises a water circulating primary road and at least two water circulating branches; the first water circulating branch conducts heat exchange with the water-cooled heat exchanger forcooling a battery pack; and the second water circulating branch conducts heat exchange with the water-cooled condenser for heating a passenger compartment. The water circulating loop is additionallyarranged in the thermal management system, the two branches of the water circulating loop conduct heat exchange with a refrigerant of an air conditioning system, thus the advantage of the high air conditioning refrigeration efficiency can be given into full play, thermal energy generated by other parts of the vehicle is fully utilized, and energy is saved.
Owner:贾宏涛

Vehicular diesel engine highland second-stage adjustable pressurization system and control method thereof

The invention discloses a vehicular diesel engine highland second-stage adjustable pressurization system and method. The system comprises a high-pressure stage supercharger, a low-pressure stage supercharger and an electronic control unit; a middle cooler is arranged between a high-pressure stage gas compressor and a low-pressure stage gas compressor; a middle cooler is arranged behind the high-pressure stage gas compressor; the high-pressure stage gas compressor is connected with the high-pressure stage supercharger; the low-pressure stage gas compressor is connected with the low-pressure stage supercharger; the high-pressure stage supercharger and the low-pressure stage supercharger are connected in series; the turbine side of the high-pressure stage supercharger is provided with a containment high-pressure regulating valve; the turbine side of the low-pressure stage supercharger is provided with a low-pressure regulating valve; the gas compressor side of the low-pressure stage supercharger is provided with a gas compressor by-pass valve; the high-pressure regulating valve, the low-pressure regulating valve, the by-pass valve and a turbine blade regulating mechanism of the high-pressure stage supercharger are controlled by an electronic control unit. a secondary middle cooling technology (the middle cooler is arranged between the high-pressure stage gas compressor and the lower-pressure stage gas compressor and the middle cooler is arranged behind the high-pressure stage gas compressor) is adopted, so that the air temperature after pressurization is reduced, the air input is improved, and the power performance and economical efficiency of an diesel engine are ensured.
Owner:MILITARY TRANSPORTATION UNIV PLA

Chinese mugwort leaf pipe cigarette and manufacture method thereof

The invention discloses a Chinese mugwort leaf pipe cigarette and a manufacture method thereof. A cigarette body (1) is in a hollow cylinder shape formed by pressing purely natural Chinese herbal medicine plant powder, and a hollow pipeline (2) is arranged in the cigarette body. The cigarette body comprises the following components: Chinese mugwort leaves, rhizoma atractylodis, ginseng, edible adhesive and natural edible essence. The manufacture method comprises the following steps of: fine selecting and weighing a medicament; pulverizing the rhizoma atractylodis and the ginseng into powder of 80-100 meshes to uniformly mix with the Chinese mugwort leaves which is pulverized into 70-90 meshes according to the proportion; adding the edible adhesive and the natural edible essence; then adding water till the mixture is clustered; placing the mixture into a die; pressing, molding and then taking out to dry in the air or dry at 35-45 DEG C. The common tobacco is replaced by Chinese herbal medicine, and the cigarette body is made into the hollow cylinder shape to improve the air inflow during suction; by utilizing a traditional Chinese medicine treating principle and smelling and sucking a human body, the absorption of the human body is more direct; a plant in the cigarette can fully play a medicament effect during burning, and the aims of inflammation elimination, sterilization, prevention and treatment of diseases and smoking quitting are achieved.
Owner:天威英利

Lean-burn gas duel-fuel spark-ignition-type internal combustion engine based on EGR system and control method

The invention relates to a lean-burn gas duel-fuel spark-ignition-type internal combustion engine based on EGR (Exhaust Gas Recirculation) system and a control method, and can solve the problems of unstable combustion, high NOx emission and the like of a gas fuel spark-ignition-type internal combustion engine caused during lean burn. Based on the in-fuel-gas-cylinder direct injection and inlet duct spray combined duel-fuel spark-ignition-type internal combustion engine technology and the EGR technology, the internal combustion engine and the control method ensure that the duel-fuel spark-ignition-type internal combustion engine can realize stable and efficient lean burn and reduce the phenomena of cyclical variation and fire accident at a high compression ratio; meanwhile, part of exhaust gas is re-guided into the cylinder to participate in combustion, the EGR ratio is changed according to the requirements of working conditions, the in-cylinder combustion temperature is lowered, and the generation of NOx is inhibited; and besides, as lean burn and EGR co-exist, the opening degree of a throttle valve can be increased and the pumping loss is reduced. In conclusion, reduction of energy consumption and super-low emission of pollutants can be fundamentally realized.
Owner:JILIN UNIV

Dual-fuel spark-ignition internal combustion engine based on variable air channel, and control method

The invention designs a dual-fuel spark-ignition internal combustion engine based on a variable air channel, and a control method, aims at solving the problem that effective adjustment cannot be carried out on an intake flow and an airflow direction in an air channel, of an internal combustion engine adopting the traditional intake structure, and in particular, an internal combustion engine adopting a four-valve structure, and solving the problems of instable combustion, difficult ignition, fire and the like generated during lean combustion, and develops a dual-fuel spark-ignition internal combustion engine based on a variable air channel, and a control method. The invention provides a variable intake system. According to the variable intake system, the optimal airflow movement under different working conditions is obtained through control for the opening and closing of a swirl control valve, and in combination with a piston top surface with a special shape. The invention discloses a combined internal combustion engine technology for carrying out in-cylinder direct injection and intake channel injection respectively on the basis of two fuels. The different combustion modes of an in-cylinder mixed gas are realized through control for an injection time and an injection pulse width, and in combination with an airflow movement, and then the working efficiency of the internal combustion engine under different working conditions is improved, and oil consumption and emission are reduced.
Owner:JILIN UNIV

Air purification equipment using liquid reducing agent and working and applying method of air purification equipment

The invention discloses air purification equipment using a liquid reducing agent. The air purification equipment is characterized by comprising a polluted gas suction opening, a polluted gas purification cavity and a clean gas discharging opening, wherein the polluted gas purification cavity is divided into a plurality of cavities by a plurality of half-surface multihole type pollution particle vertical baffles; pollution cleaning liquid is contained in the polluted gas purification cavity; one end of each half-surface multihole type pollution particle vertical baffle is closed, and the other end of each half-surface multihole type pollution particle vertical baffle is used for communicating two adjacent cavities through multiple holes; the polluted gas suction opening and the clean gas discharging opening are respectively formed in the two cavities at the head and the tail. The air purification equipment has the advantages that polluted air enters the pollution cleaning liquid, so that all particulate matters entering pollution cleaning equipment can be humidified to gain the weight and basically retained; by the adding of a feldspar aqueous solution component, carbon elements in carbon dioxide and other elements in the feldspar aqueous solution are combined to generate carbonate type substances, and sucked carbon dioxide components can be eliminated.
Owner:段洪池 +1

Electronic vacuum pump for new energy vehicle brake vacuum booster

The invention discloses an electronic vacuum pump for a new energy vehicle brake vacuum booster. The electronic vacuum pump comprises a motor assembly, a supporting base, a pump chamber lower cover, a driving sleeve, a pump rotor, blades, a pump chamber, a pump chamber upper cover, a pump body cover and fixing pins, wherein a left side air feeding slot of the pump chamber lower cover, a left side air feeding through hole of the pump chamber and a left side air feeding slot of the pump chamber upper cover are communicated with one another to form an air passageway; a right side air feeding slot of the pump chamber lower cover, a right side air feeding through hole of the pump chamber and a right side air feeding slot of the pump chamber upper cover are communicated with one another to form an air passageway; a flow guide slot of the pump chamber lower cover is communicated with an inner cavity of the pump chamber; an air discharging slot of the pump chamber upper cover is communicated with the inner cavity of the pump chamber; the flow guide slot of the pump chamber lower cover and the air discharging slot of the pump chamber upper cover are symmetric. When the vacuum pump works, an air path with four air inlets and two air outlets is formed; therefore, the air feeding resistance is greatly reduced, and the air feeding amount of the pump chamber is increased; under the equal energy consumption, the vacuumizing efficiency of the vacuum pump provided by the invention is higher.
Owner:常州市东南电器电机有限公司

Electricity-auxiliary two-stage supercharging system capable of reusing exhaust gas

The invention relates to an electricity-auxiliary two-stage supercharging system capable of reusing exhaust gas, belonging to the technical field of waste gas turbine supercharging. The electricity-auxiliary two-stage supercharging system specifically comprises the first-stage booster of an electricity-auxiliary turbine, the second-stage booster of a waste gas turbine, an electromagnetic three-way valve, an inlet and outlet pipeline system, a supercharging control circuit and an engine system. In the electricity-auxiliary two-stage supercharging system, the flexible control of opening and closing the three-way electromagnetic valve is used for further improving engine intake pressure by a second-stage supercharging system while solving the problem of waste gas turbine supercharging delaying, thereby realizing the high-pressure ratio of the engine supercharging, and improving the power and the emission performance of the engine under the whole working condition; the waste gas applying work in the second-stage booster of a waste gas turbine can be further utilized in the first-stage booster of an electricity-auxiliary turbine; and a storage battery is charged by power generation to fully utilize waste gas energy and effectively utilize fuel energy. Thus, the electricity-auxiliary two-stage supercharging system has an important energy-saving meaning.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Electric-assistance variable nozzle turbocharging system and control method thereof

ActiveCN105781716AImprove transient response characteristicsMeet the performance requirements of working conditionsInternal combustion piston enginesElectricityTurbocharger
The invention provides an electric-assistance variable nozzle turbocharging system, and belongs to the technical field of turbochargers. The electric-assistance variable nozzle turbocharging system and the control method thereof aim at enabling a motor and a turbine variable nozzle ring to be coordinated through the influences of the motor and the turbine variable nozzle ring on performance of an engine. A diesel engine cylinder is directly connected between a gas inlet branch pipe and an exhaust branch pipe of the system. A gas inlet pipe is connected to the gas inlet branch pipe. An exhaust pipe is connected to the exhaust branch pipe. An intercooler is installed on the gas inlet pipe. An electric-assistance variable nozzle turbocharger is installed at an inlet of the gas inlet pipe and an outlet of the exhaust pipe. According to the electric-assistance variable nozzle turbocharging system and the control method, the high-speed motor is controlled on the basis of the air-fuel ratio of a diesel engine and the state of a storage battery, the gas inflow amount of the cylinder can be effectively and rapidly regulated so as to be matched with the changes of the oil spray amount, coordinated synchronization of oil and gas is achieved, it is ensured that the diesel engine keeps an appropriate air-fuel ratio value under various working conditions, and meanwhile it is ensured that the battery works in a high-efficiency area.
Owner:JILIN UNIV

Variable valve timing device

The invention discloses a variable valve timing device used for controlling opening and closing timing of a valve of a vehicular engine. The variable valve timing device comprises a camshaft, a rotary driving part and a phase adjusting mechanism, wherein the camshaft is used for driving opening and closing of the valve, the rotary driving part for driving the camshaft is capable of rotating with an engine crankshaft synchronously and capable of rotating relative to the camshaft, and the phase adjusting mechanism is used for changing a relative rotary phase between the rotary driving part and the camshaft so as to allow adjustment of the opening timing of the valve at the least. Besides, the phase adjusting mechanism comprises a motor which is only in drive connection with the camshaft, and when the valve needs to be opened in advance, the motor drives the camshaft to rotate forwards relative to the rotary driving part, so that the valve is opened in advance. By the aid of the variable valve timing device, the valve can be opened continuously, and the variable valve timing device is larger in air inflow as compared with that in the prior art under the high-rotational-speed high-load working condition. The overall weight of a valve timing mechanism can be reduced, arrangement of the valve timing mechanism is realized by making small modifications on a cylinder head system, and accordingly the variable valve timing device is high in universality.
Owner:HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2

Air valve throat area control system

The invention relates to an air valve throat area control system and relates to the technical field of mechanical design. The air valve throat area control system comprises an air compressor, an engine, a turbine, connecting pipes, a valve seat, a valve block, a rotary shaft, a volumetric cavity, a rotor and an elastic part. The rotor is mounted in the volumetric cavity and is in hermetic contact with the inner wall of the volumetric cavity. The lower wall of the rotor is connected with the lower wall of the volumetric cavity through the elastic part. Two ends of the first connecting pipe are communicated with an air inlet of a turbine exhaust pipe and an air inlet of the volumetric cavity respectively. Two ends of the third connecting pipe are communicated with the upper wall of an engine exhaust pipe and the upper wall of the volumetric cavity respectively. When the pressure of the engine exhaust pipe is high, the rotor drives the valve block to rotate clockwise, emission recirculation rate of the engine is high, and denotation pressure of the engine is low; when the pressure of the engine exhaust pipe is low, the rotor drives the valve block to rotate anticlockwise, emission recirculation rate of the engine is low, and oil consumption of the engine is low. The air valve throat area control system is reasonable in design, simple in structure, and applicable to exhaust recirculation systems for supercharged engines.
Owner:SHANGHAI JIAO TONG UNIV

Water circulation type thermal management and air conditioning system for electric vehicle

The invention relates to a water circulation type thermal management and air conditioning system for an electric vehicle, a vehicle including the thermal management and air conditioning system and anoperation method of the thermal management and air conditioning system. The water circulation type thermal management and air conditioning system for the electric vehicle comprises a refrigerant circulation loop and a water circulation loop. The water circulation type thermal management and air conditioning system for the electric vehicle is characterized in that the refrigerant circulation loop comprises an electronic compressor, a water-cooled condenser, a water-cooled heat exchanger electronic expansion valve and a water-cooled heat exchange; the water circulation loop comprises a water circulation trunk road and at least two water circulation branches, wherein the circulating water of one water circulation branch is heat exchanged with the water-cooled heat exchanger for cooling a passenger compartment and/or a battery pack, and the circulating water of the other water circulation branch is heat exchanged with the water-cooled condenser for heating the passenger compartment; and apart which cools the passenger compartment is a refrigerator, a part which heats the passenger compartment is a heater, and the refrigerator and the heater form a water-cooled air conditioning system.Different from a traditional vehicle air conditioner, the water circulation type thermal management and air conditioning system for the electric vehicle adopts the water-cooled air conditioning system and utilizes the refrigerator and the heater which are arranged in series to refrigerate and/or heat the passenger compartment, the advantage of high refrigeration efficiency of an air conditioner is fully achieved, the heat energy generated by other parts of the vehicle is fully utilized, and energy is saved.
Owner:贾宏涛

Adjustable constant speed sampling system

The invention relates to an adjustable constant speed sampling system, which includes a cabin plate, a bracket fixed below the cabin plate, a constant speed sampling device mounted on the bracket, a main sampling pipe communicated with the constant speed sampling device, and a particulate matter monitoring sampler communicated with a constant speed pipe. The main sampling pipe is composed of a plurality of pipe sections that are equipped with constant speed sampling joints, and the constant speed sampling joints are connected to the particulate matter monitoring sampler through a multi-branch pipe. The vertical pipe of the constant speed pipe passes through the bracket and is mounted on the bracket by a mounting base. A first motor on the bracket drives the vertical pipe to rotate around the axis of itself. A second motor on the cabin plate drives the vertical pipe to swing around the straight line where the intersection point of the mounting base and the vertical pipe. In the flying process of an aircraft, the position and angle of the horizontal pipe of the constant speed pipe can be adjusted to make the horizontal pipe over against an air flow according to pressure taps' (pairwise symmetry) static pressure measured by a speed measurement pipe, and the internal pressure can be adjusted by a regulating device, thus ensuring the accuracy of value measured by the sampling device.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Petrol engine with turbo charging

The invention relates to a petrol engine with turbo charging, which comprises a cylinder body, a cylinder sleeve, an intake valve, a spark plug hole, an exhaust valve, a combustion chamber, a crankshaft, a connecting rod, a piston, an intake manifold, an exhaust manifold and a turbo charging device. The petrol engine also comprises a twin cam shaft valve timing adjusting structure arranged above a cylinder head; the twin cam shaft valve timing adjusting structure ensures that an admission cam shaft and an exhaust cam shaft is in transmission connection with the crankshaft through a timing chain; and the twin cam shaft valve timing adjusting structure is used for continuously and changeably adjusting the opening times of the intake valve and the exhaust valve of the combustion chamber, therefore, the fuel utilization and the rotation speed and the output power of the engine can be improved. The turbo charging device can increase the intake pressure of the engine, and quicken the combustion of the fuel of the engine, so as to enable the combustion to be more sufficient, therefore, the output power of the engine is improved, and the exhaust emissions are reduced. A three-way catalysis device is arranged on the exhaust manifold, therefore, the harmful gas emissions can be reduced.
Owner:苏州益方动力机械有限公司

Symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator

The invention discloses a symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator. A motor fixed on a weight beam transmits power to a hollow shaft through a chain, and an internally helical blade conical air compression wheel with a through hole at bottom is arranged on the upper end face of the hollow shaft. A hollow sleeve is sleeved outside the hollow shaft, the upper end face of the hollow sleeve is connected with the weight beam, the other end of the weight beam is fixed with a floater, the lower end face of the hollow sleeve is connected with an air suction chamber, the tail end of the hollow sleeve is provided with a driving bevel gear, and two driven bevel gears are arranged on respective hollow output shafts respectively. The other ends of the hollow output shafts extend out of the air suction chamber, the tail ends of the hollow output shafts are provided with an impeller and a diffuser, and the extended part comprises the impeller and the diffuser and is enclosed by a deflector fixed on the air suction chamber. The water suction pipe, after entering from the bottom face of the air suction chamber, is divided into two parts, and the divided two pipes extend into the hollow output shafts respectively. In the invention, the air compression wheel is used for compressing air, the impeller is used for air suction, and the air intake volume is high; the adoption of the air suction pipe increases the air and liquid mixing and shearing action; and the aeration capacity is increased.
Owner:ZHEJIANG SCI-TECH UNIV

Electronic cigarette oil leakage preventing device adopting light-induced reversible deformation layer and oil leakage preventing method

The invention provides an electronic cigarette oil leakage preventing device adopting a light-induced reversible deformation layer. The electronic cigarette oil leakage preventing device comprises a housing (12), a light source accommodation cavity (2) provided with a light source (1) in the inside and provided with a transparent light outlet wall (2-1), a light-induced reversible deformation layer (5) provided with a lighted side surface and a back-lighted side surface, and an elastic layer (6) tightly attached to the back-lighted side surface of the light-induced reversible deformation layer (5), wherein the lighted side surface faces the light source (1), an airflow outlet channel is defined between the lighted side surface of the light-induced reversible deformation layer (5) and the light outlet wall (2-1) and the housing (12), and an air inlet hole (8) and an air outlet hole (3) of the airflow channel are respectively formed in the housing (12), one end of every one of the two holes is fixedly connected with the light outlet wall (2-1) or the housing (12), the other end of every one of the two holes is attached to the lighted side of the light-induced reversible deformation layer (5), and therefore blocking of the airflow channel is formed.
Owner:CHINA TOBACCO YUNNAN IND

Ten-hole total temperature measuring probe

The invention belongs to the technical field of testing of total temperature of an aero-engine, and discloses a ten-hole total temperature measuring probe. The ten-hole total temperature measuring probe comprises a stagnation cover, a heat insulation sealing part, a probe support rod, a temperature sensor, convection heat exchange holes and a temperature measuring lead wire, wherein the stagnation cover is connected with the probe support rod, and is in an L shape; an air inlet hole with larger diameter is formed in the head part of the stagnation cover, and is provided with a chamfer to increase an insensitive angle of air flow; nine convection heat exchange holes are formed in the side wall of the stagnation cover, and are used for air flow to flow in and out; the temperature sensor can adopt various types of thermocouples or thermal resistances; the temperature measuring lead wire is led out of the back part of the probe. The ten-hole total temperature measuring probe has the advantages that the air intake amount is larger; the heat exchange at the surface of the temperature sensor is quick, the insensitive angle range of the air flow is large, the total temperature of a flow field with larger air flow deflection angle and larger working condition change can be measured, and the total temperature of the flow field can be measured at low speed.
Owner:BEIHANG UNIV

Pneumatic-control valve lift regulating mechanism

The invention relates to a pneumatic-control valve lift regulating mechanism and relates to the technical field of mechanical design. The pneumatic-control valve lift regulating mechanism comprises an air compressor, an engine, a turbine, connecting pipes, a valve seat, a valve block, a rotary shaft, a volumetric cavity, a rotor and an elastic part. The rotor is mounted in the volumetric cavity and hermetically contacts with the inner wall of the volumetric cavity. The lower wall of the rotor is connected with the lower wall of the volumetric cavity through the elastic part. Two ends of the first connecting pipe are communicated with an air inlet of a turbine exhaust pipe and an air inlet of the volumetric cavity. Two ends of the third connecting pipe are communicated with the upper wall of an engine exhaust pipe and the upper wall of the volumetric cavity. When the pressure of an engine intake pipe is high, the rotor drives the valve block to rotate clockwise, emission recirculation rate of the engine is high, and denotation pressure of the engine is low; when the pressure of the engine intake pipe is low, the rotor drives the valve block to rotate anticlockwise, emission recirculation rate of the engine is low, and oil consumption of the engine is low. The pneumatic-control valve lift regulating mechanism is reasonable in design, simple in structure, and applicable to exhaust recirculation systems for supercharged engines.
Owner:SHANGHAI JIAO TONG UNIV

Rotary exhaust gas flow rate regulating system

The invention relates to a rotary exhaust gas flow rate regulating system and belongs to the technical field of mechanical design. The rotary exhaust gas flow rate regulating system comprises a gas compressor, an engine, a turbine, connecting pipes, a valve seat, a valve body, a rotary shaft, an accommodating cavity, a rotator and an elastic component, wherein the rotator is mounted in the accommodating cavity and is in sealed contact with the inner wall face of the accommodating cavity, the lower wall face of the rotator is connected with the lower wall face of the accommodating cavity through the elastic component, two ends of a first connecting pipe are communicated with gas inlets of an engine exhaust pipe and an accommodating chamber respectively, and two ends of a third connecting pipe are communicated with an engine intake pipe and the upper wall face of the accommodating cavity respectively. When the engine intake pipe is high in pressure, the rotator drives the valve body to rotate clockwise, exhaust gas recirculation rate of the engine is large, and the engine is low in explosion pressure; and when the engine intake pipe is low in pressure, the rotator drives the valve body to rotate anticlockwise, the exhaust gas recirculation rate of the engine is small, and oil consumption of the engine is low. The rotary exhaust gas flow rate regulating system is reasonable in design, simple in structure and applicable to an exhaust gas recirculation system of the supercharged engine.
Owner:SHANGHAI JIAO TONG UNIV
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