150results about How to "Reasonable match" patented technology

The invention discloses a steam turbine blade vibration test method and device. The method steps are that firstly, a blade force vibration status is analyzed and a blade excitation force mathematical model is built. Secondly, an excitation force is imposed on the blade by a vibration source. The frequency of the excitation force is regulated until resonance is generated between the blade and the vibration source. Vibration characteristics parameters values of the blade under the excitation force are measured. Thirdly, blade damping characteristics parameters, including modal damping ratio, damper contact stiffness and blade dynamic stress, are worked out according to the vibration characteristics parameters values. The device includes a test bed, a blade clamping mechanism arranged on the test bed, an excitation generator, a vibration parameter detector and a data processing system. The excitation vibration generator is fixed on the test bed. The excitation vibration head of the excitation vibration generator is fixed with the blade. Corresponding to the blade, the vibration parameter detector transforms the vibration signals of the blade into electric signals, which are input into the data processing system. The invention proves the vibration mechanism of the damping blade. A calculation model of the damping blade is constructed through the test parameters. Experience design is terminated. The blade design is standardized to step into a scientific design orbit.

A method for load control in an electrical distribution system using energy usage profiles based on temporal measurements. A load control unit (10) installed at a customer site profiles equipment (E1-En) directly connected to the load control unit and remotely located equipment (RE1-REn) wirelessly connected to the load control unit using measurements of time rather than energy usage. This reduces the cost and complexity of the load control unit. Profiling is done for individual pieces of load controlled equipment rather than for the site as a whole. This improves data resolution. The load control unit controls the load only when the equipment is powered, and adaptively synchronizes load shedding during this time, so to improve local load control performance. Termination of a load control event results in gradual reduction in load shedding so to control the inrush of demand seen by the distribution system. Performance metrics related to the load control are provided to the utility such that complexity of the system is reduced through decreased computations.

The invention relates to a method and device for matching users in a game application. The method comprises the following steps that the historical primary attribute values of the users are acquired according to the historical game data of the users; the evaluating coefficients of current game running environment parameters of the users are acquired; processing is carried out according to the historical primary attribute values of the users and the evaluating coefficients of the current game running environment parameters, and the current primary attribute values of the users are obtained; the users with the current priamry attribute values meeting set conditions are matched as a group. According to the method and device for matching the users, the current game running environment parameters of the users are estimated, processing is carried out according to the evaluating coefficients of the environment parameters and the historical primary attribute values of the users, the current primary attribute values of the users are obtained, the users meeting the set conditions are matched, obtained matching is more accurate and reasonable, matching accuracy and matching efficiency are improved, the situation that a large number of users not meeting the set conditions are matched is avoided, and network resources are saved.

The present invention belongs to the technical filed of straw or forage harvesting and bundling, especially a dual chain ring driving knotting machine which includes a small chain ring, a knotting machine support, a large chain ring, a knife arm, a winding, buckling, clamping and occluding mechanism R, a rope clamping machine J and a rope clamping machine drive mechanism Q. The small chain ring and the large chain ring are coaxially mounted at both ends of the knotting machine support; the rope clamping machine drive mechanism Q and the winding, buckling, clamping and occluding mechanism R are mounted at different sides of the knotting machine support; in the knotting machine support, a knotting mouth shaft hole shaft axis d presents non-orthogonal concurrent axis arrangement with a knotting machine main shaft axle hole shaft axis a, a worm shaft axle hole shaft axis c presents perpendicular concurrent axis arrangement with the knotting machine main shaft axle hole shaft axis a, a knife arm shaft axle hole shaft axis b presents space orthogonal arrangement with the knotting mouth shaft hole shaft axis d, the knife arm shaft axle hole shaft axis b, the rope clamping plate shaft hole shaft axis e and the knotting machine main shaft axle hole shaft axis a are arranged space perpendicularly to each other; the dual chain ring driving knotting machine has reasonable structure, is easy for processing and assembling, and has low manufacturing cost, and reliable knotting characteristics.

The invention discloses a rotor armed unmanned aerial vehicle which comprises an unmanned gyroplane, an observing and aiming unit, a mounting unit, a weapon unit and a control unit. An unmanned gyroplane body is a bearing platform of the rotor armed unmanned aerial vehicle, and the observing and aiming unit observes, measures and aims at a target. The mounting unit comprises a direction adjustingmechanism, a buffering mechanism, a mounting block and a high-low angle adjusting mechanism. The direction adjusting mechanism comprises a bearing ring and a driving motor. The buffering mechanism isconnected with the rotating bearing ring, and a guide rod penetrates through a guide hole in the upper portion of the mounting block. The two ends of the guide rod are fixed to a supporting seat, andsprings are arranged at the two ends of the guide rod in a sleeving mode to constrain the mounting block to achieve the buffering effect. The upper portion of the mounting block is connected with theguide rod of the buffering mechanism, and the lower portion of the mounting block is provided with the high-low angle adjusting mechanism. According to the rotor armed unmanned aerial vehicle, the mounting mode is simple and convenient, a control mechanism is compact and reliable, and the buffering mechanism is efficient and reliable; through the mounted observing and aiming unit, the all-weatherfighting ability is achieved; through the control unit, the target can be remotely monitored and accurately struck, and thus the safety of obverse shooter is effectively ensured.

The invention provides a concrete block regeneration aggregating processing car, belonging to a special purpose engineering car. The concrete block regeneration aggregating processing car comprises a car body and has a structure that a device used in the concrete mixing waste material processing production is integrally arranged on a frame (10) of a chassis according to the production line in the stone fabrication plant, the power of the processing system is provided by a diesel fuel electric generating set (8); and the production flow line comprises loading, vibrating feeding, jaw smashing, counterattack smashing, vibrating sieving and discharging. The concrete block regeneration aggregating processing car can process the concrete road surface mixing waste material on the spot in the process of paving or overhauling the concrete road and is applied to the building of the road, has good flexibility, high production efficiency, high degree of production automation and low operation cost, can adapt to various working environments and meet various requirements, saves energy resources and protects the environment.

The invention discloses a high-speed railway microwave communication network, which is used for realizing signal relay between a movement carrier internal communication network and a carrier external communication network on high-speed railways. The network comprises a plurality of rail base relay devices and at least one vehicle-mounted relay device, wherein the plurality of rail base relay devices are laid along the high-speed railway rails, are arranged within a rail construction limit and are used for realizing signal relay between the external communication network and the vehicle-mounted relay device; each rail base relay device has a coverage space; the at least one vehicle-mounted relay device is fixed on the carrier and realizes signal relay between a rail base relay device corresponding to the current coverage space and the carrier internal communication network; and the frequency range of the signal is limited in one or more sub-frequency ranges from 4 to 42 GHz. Because microwave frequency ranges are adopted for signal relay of internal and external networks, the microwave communication network has the advantages of stable channel and high communication capacity; and because the system is enclosed in the construction limit of the high-speed railway, the network has the advantages of high reliability, high universality, low cost and the like.

The invention discloses a bone screw of a three-dimensional through porous structure. The porous bone screw comprises a screw head, a screw body and a screw cap. The screw body comprises a porous network composed of the three-dimensional through porous structure. The porous bone screw is made of medical materials which can be implanted into a human body, the three-dimensional through porous structure of the porous bone screw provides more space for the growth of bone cells, the combination between the implanted screw and the bone tissues of the human body is promoted, and the anchoring can be firm.

The invention mainly discloses a mid-size vehicle speed changer with a main tank and an auxiliary tank. In the auxiliary tank, an epicyclic transmission structure is adopted and has a high gear and a lower gear; a locking ring type high-capacity synchronizer is adopted to shift gears and switch between a high-gear area and a low-gear area, and gear shifts are controlled by using a pneumatic gear shift mechanism; and the auxiliary tank is combined with the main tank and can form a plurality gears. The invention has the advantages of large carrying capacity, more gears, total synchronizer gear shift, speed ratio matching distribution according to a bias geometric progression, linkage operation of the main tank and the auxiliary tank, light and convenient gear shift, environmental protection, energy saving, and the like, has stronger adaptability to various working conditions and road conditions and can better meet the development requirements of domestic vehicles at present.

The invention discloses an accurate matching method of an automobile fusible cutout and a connecting wire. The accurate matching method of the automobile fusible cutout and the connecting wire comprises the following steps: firstly, establishing a mathematical model of connecting wire rated operational current according to a heating and heat transfer mechanism of the automobile fusible cutout and the connecting wire in the process of working; secondly, establishing a foundation database of a low voltage wire and the fusible cutout for a national standard automobile; lastly, amending a theoretical matching result of the fusible cutout and the connecting wire in the mathematical model of the connecting wire rated operational current according to the foundation database of the low voltage wire and the fusible cutout for the national standard automobile, and acquiring an accurate matching result of the fusible cutout and the connecting wire designed by an automobile electric system. The accurate matching method of the automobile fusible cutout and the connecting wire ensures that parameter matching accuracy between the automobile fusible cutout and the connecting wire is improved greatly, matching between the automobile fusible cutout and the connecting wire is rational, and development efficiency of the automobile electric system is improved. The accurate matching method of the automobile fusible cutout and the connecting wire has good economic benefit and social benefit.

The invention discloses an optimized configuration method for reentry and return spacecraft propulsion system, which solves a problem that a conventional configuration method is difficult to meet the configuration quality of the small-scale return spacecraft power system configuration. Based on a task analysis, in order to adapt to the characteristics of the small return spacecraft, a type of a propulsion system and a propellant is selected reasonably, a effective propellant weight is calculated, a selection of extrusion gas type is optimized, a rail control engine and a attitude control engine thrust and a number of that is preliminary determined by further analyses, the attitude control engine thrust and cylinder tank layout is determined. According to the calculated control capacity to optimize the attitude control engine thrust until the control requirements to meet the optimal system to achieve optimal configuration.

The invention discloses an agricultural precise planting method based on big data. The big data used by an agricultural precise planting system comprise soil big data, crop growth law big data, water and fertilizer big data and agricultural product market big data. Firstly, according to the previous market sales volume and the price big data of agricultural products, types of crops which are suitable for being planted are selected; then, according to the crop growth stage big data, the sowing time of the crops is planned, and according to the soil temperature and humidity data and the crop big data facilitating soil growth, the soil facilitating crop planting is selected; and finally, according to lighting, watering and fertilizing data needed in each growth stage of the crops, watering and fertilizing data needed by the crops are obtained, and according to water and fertilizer supply big data, the water and fertilizer irrigating time and the irrigating amounts are planned for the crops. The agricultural big data can be used for reasonably matching the soil and the crops, the water and the fertilizer are used high efficiently, and the method of the invention is suitable for precise agriculture.

The invention provides a medium-sized mobile lamp vehicle, which comprises an illuminating light source (1), a lamp projection angle adjusting mechanism (2), a lamp tower (3), a generator set (4), a chassis (5) and supporting legs (6), wherein the illuminating light source (1) and the lamp projection angle adjusting mechanism (2) are arranged on the lamp tower (3); the lamp tower (3) is fixed on the chassis (5) through a fixing seat; the generator set (4) is carried on the chassis (5); and the supporting legs (6) are arranged at the rear end, the left side end and the right side end of the chassis (5). The medium-sized mobile lamp vehicle is compact in structure, low in cost and multifunctional, has reliable windproof and anti-tilting parking stability and a good mobile passing ability, and meets requirements on outdoor emergency or temporary illumination.

The invention discloses a household appliance type rubbish dismantling, sorting and recycling process and equipment. The process comprises the following steps of firstly pre-dismantling special components and harmful substances of household appliances such as a television, a computer, a washing machine and a refrigerator; then crushing by a stirrer, treating at high temperature, carrying out negative pressure-cyclone separation, magnetic force separation, eddy current separation, separation of vibration drive belts with holes and carrying out other processes sequentially, and separating and recycling other materials of light substances after the shells of household appliances are crushed, magnetic metal, nonferrous metal, glass, plastics and the like. According to the household appliance type rubbish dismantling, sorting and recycling process and equipment, the automation degree is high, no dust and waste gas exist, the working environment is friendly; meanwhile, the equipment has high separation and classifying efficiency, is simple and flexible in configuration, and is convenient to mange, repair and maintain. The process and the equipment have important significance on energy conservation, emission reduction, employment of workers, waste material utilization and environmental protection.

The invention discloses a high-quality pavement petroleum asphalt material and a preparation method thereof, belonging to the pavement engineering material technical field. The petroleum asphalt material is prepared from the raw materials according to the parts by weight: 80-95 parts of main asphalt, 5-20 parts of formulated asphalt, 0.01-2 parts of macromolecular crosslinking agent and 0.001-0.25 part of heat stabilizer. The invention adopts chemical crosslinking, heat stabilizer and the combination of cutting and milling to promote the matching of the four components of asphalt to be further optimized and develop in the direction of forming stable colloid structure, improving the pavement performance of the formulated asphalt material and increase the stability of the formulated asphalt product. The invention makes full use of the vacuum residue of residual oil and heavy crude which are treated through vacuum deep extraction and increases the use value so as to reach the effect of resource recycling and environmental protection.

The invention discloses a double-fluted disc driving knotter and relates to the technical field of straws or pasture harvesting bundling. The double-fluted disc driving knotter comprises a small fluted disc, a knotter rack, a large fluted disc, a cutter arm assembled on the knotter rack, a reeling buckling pincer engaging mechanism (R) and a rope clamping device driving mechanism (Q), wherein a composite fluted disc of the double-fluted disc driving knotter is divided into the small fluted disc and the large fluted disc; the small fluted disc and the large fluted disc are coaxially fixed on two ends of a main shaft hole of the knotter, so the knotter main shaft can be stressed in a balanced way and work stability of the knotter can be improved; three rope clamping notches are formed on the rope clamping disc, so the length of a rope cutting sheet slip-cutting a bundling rope can be prolonged and rope cutting action of the knotter is reliable; and a cutter arm roller rolls along a spatial profile curved surface and has a linear contact with the spatial profile curved surface of the surface of a cam, so bearing capacity can be enlarged and wear can be reduced. The double-fluted disc driving knotter is rationally structured and characterized by easy processing and assembling, low manufacturing cost and reliable knotting.

According to one embodiment of the present invention, provided is a method comprising the following steps: (a) matching an image prestored in an image database with a query image so as to detect whether or not an image similar to the query image exists in the image database; (b) storing the query image in an unrecognized image database if an image similar to the query image does not exist; (c) collecting images related to each other based on the similarity between images stored in the unrecognized image database so as to construct an image group; and (d) comparing a portion of an image contained in a specific image group from among the constructed image groups with a specific input image when a specific image and tag information on the specific image are inputted, and, if it is determined that the portion of the image has a similarity that is higher than a preset threshold value, automatically adding the relevant image to the image database together with the input tag information.

The invention discloses a system based on an intelligent manufacturing management service platform and a supply and demand information processing method of the system. The supply and demand information processing method comprises the following steps: acquiring, by the intelligent manufacturing management service platform, user demand information; intelligently processing the acquired user demand information, selecting a plurality of suppliers matched with the user demand information according to the user demand information, and pushing the user demand information to the suppliers; acquiring manufacturing designs made by the suppliers according to the user demand information, and providing customization solution information for intelligent manufacturing according to the designs; feeding back the customization solution information provided by the multiple suppliers to a user. The method helps a customer to contact a proper supplier and select another solution by acquiring customization information of the user, searching and matching a supplier group matched with a customization demand of the user, ranking the supplier group, pushing the user demand, and supervising the suppliers to provide preliminary design solutions and solution quotations, so that the best interest of the user is guaranteed, and the transaction efficiency is improved.

The present invention discloses method of and device for setting carbon, temperature and oxygen detecting probe in steel making converter. Carbon, temperature and oxygen detecting probe is set into steel making converter obliquely via the material feeding pipe in the sealing fume hood. The device includes a frame, a probe bin, a paper tube turning tank, a paper tube guiding board, a paper tube pusher, a probe guide pipe, and a paper tube holder. The present invention has low cost, simple operation and easy application in automatic smelting process, and may be applied in replacing available detection.

Provided is a water cooled steam turbine unit dead steam waste heat recovery heat supply system. The system comprises a steam turbine and a corresponding condenser, by using a dead steam extraction system, a vent hole is formed in the condenser or a steam turbine exhaust pipe for bringing the dead steam out, through a pipeline, the dead steam is transported to a steam generator dead steam recoveryand utilization heat supply system; the steam generator dead steam recovery and utilization heat supply system comprises a steam generator and a steam generator condenser; an absorption or compression type heat pump heat supply system comprises an absorption or compression type heat pump unit, a power steam system of the heat pump unit is connected to a steam turbine medium pressure cylinder to exhaust steam; the steam generator dead steam recovery and utilization heat supply system and the absorption or compression type heat pump heat supply system are connected with each other, and simultaneously connected to a heat supply pipe network. According to the system, the efficient recovery and utilization of dead steam waste heat of the water cooled steam turbine in a thermal power plant is achieved, the utilization amount of dead steam is improved, the heat supply capacity is improved, the loss of a cold end is reduced to the maximum, and the maximum energy saving efficiency is realized.

The invention relates to a ceramic positive temperature coefficient (PTC) thermistor of a variable-frequency air conditioner starter and a manufacturing method thereof. The ceramic PTC thermistor belongs to the (Ba1-xCaX) TiO3+TiO2+Y2O3+SiO2+Mn(NO3)2 series. The ceramic PTC thermistor is prepared by 1.022 mol of TiO2, 0.790 to 0.810 mol of BaCO3, 0.179 to 0.185 mol of CaCO3, 0.022 to 0.023 mol ofSiO2, 0.0021 to 0.0022 mol of Y2O3 and 50 mass percent of Mn(NO3)2 solution at the concentration of 0.005 ml per weight percent by a one-step synthesis method. The raw materials are reasonable; the production process is simple; in the product, the Curie temperature is between 125 and 135 DEG C, the voltage resistance is more than AC800V, and the resistivity at room temperature is 190 to 480 Omegacm; and the ceramic PTC thermistor is particularly suitable for the variable-frequency air conditioner starter.

The invention discloses a tappet device of a fuel injection pump, and particularly relates to a pressure lubricating integral barrel-shaped tappet device of the fuel injection pump. The technical scheme is as follows: the tappet device mainly comprises a supporting sleeve, a guiding key, a tappet body, a roller pin and a roller wheel, wherein the tappet body, the roller pin and the roller wheel are assembled integrally and installed in the supporting sleeve, and realize guiding and limiting in the guiding groove on the wall surface of the tappet body by the guiding key. On one hand, the pressure lubricating oil from an engine is directly injected to the roller wheel and a cam, on the other hand, the pressure lubricating oil reciprocates in the tappet component by building a pressure lubricating oil film between the supporting sleeve and the tappet body, the lubricating oil at the periphery of the tappet component enters the gap between the roller pin and the roller wheel for lubricating, and the lubricating oil on the upper part of the tappet is injected to the roller wheel through two through holes of the tappet body, thus the lubricating and cooling effects are good. The tappet device disclosed by the invention can be widely applied to the fuel injection pump so as to improve the pressure lubricating function and carrying capacity of the fuel injection pump, and has broad application prospects.

The invention relates to suspended mechanical spring in railway carriages for passenger, concrete relates to option processes for suspended mechanical spring in railway carriages for passenger. The invention solves the problem of difficulty in Making sure that carriages for passenger primary pass the test because of lacking of option processes for standard axle box mechanical spring and bolster mechanical spring when carriages for passenger in maintenance. Weighting the body of the carriages for passenger, Gauging partition of load of the four supporting place in the body carriages for passenger, and Ascertaining the heavy end the light end and the heavy side, the light side of the heavy end and the light end according to the partition of load of the four supporting place; gauging the free height and hardness of the vehicle-mounted axle box mechanical spring and bolster mechanical spring, Ordering the axle box mechanical spring and bolster mechanical spring in order of large to small of the product of the free height and the hardness of the mechanical springs; and then optioning in the order of heavy end to light end, heavy side to light side. The invention can reduce the workload of corrective maintenance, improve the success rate of maintenance, essentially make >primary pass the test, and improve maintenance efficiency and quality.

The invention discloses a local oxygen-enriched flame warming lengthening type combustor. The local oxygen-enriched flame warming lengthening type combustor comprises a combustor body, a swirler and oxygen-enriched air pipelines. A fuel gas pipeline and the three oxygen-enriched air pipelines are arranged on the combustor body, the swirler is arranged on one side inside the combustor body, a fuel gas nozzle of the fuel gas pipeline is arranged at the position of the swirler, a combustion supporting air inlet is formed below the combustion body, combustion supporting air is fully mixed with fuel gas at the position of the swirler and then ejected to form a main flame combustion area, and oxygen-enriched nozzles of the three oxygen-enriched air pipelines are located on the upper portion, the middle and the lower portion of the main flame combustion area respectively. The local oxygen-enriched flame warming lengthening type combustor has the advantages that on the basis of the physical principle, oxygen-enriched air is reasonably added in original flames which are not fully combusted for combustion supporting, molecules in the fuel gas and molecules in combustion supporting gas are reasonably matched, the temperature of the original flames rises by reasonably distributing and utilizing added oxygen molecules, fuel is fully combusted, and energy is saved by 25%-45%.

The invention discloses an intelligent device operation and maintenance management system. The intelligent device operation and maintenance management system adopts an intelligent terminal as a carrier, and comprises a login module, which is used for system login of different users; a task management module, which is used for operation and maintenance task management of different industrial devices; an information management module, which is used for information management of personnel information, device information, and enterprise information; a task matching module, which is used to match different operation and maintenance tasks with corresponding users. The intelligent device operation and maintenance management system is advantageous in that the unified operation and maintenance management of the enterprise industrial devices is effectively carried out, and the safety performance of the industrial devices is guaranteed, and the management complexity of the enterprises is reduced.

The present invention discloses one kind of large ground effect flyer flying in the ground effect flying region. The large ground effect flyer includes a fuselage, wings and engines. It has cruising engine in the tail, thrusters in the nosing and wings, and lift boosting air cavities below wings. The present invention leads the jet flow of the thrusters to the lift boosting air cavities with the turning jets and converts airflow kinetic energy into pressure energy to generate great lift. It has cruising engine in the tail and elevators with trimmers to ensure the reasonable matching between the attack angle focus and the height focus and the balancing of the elevator force in long term flying, so as to realize the balancing and maneuvering in the longitudinal plane and to ensure the stable flying of the flyer in the air near water surface.

The invention relates to a dead steam waste heat recovery heat supply system for a water cooling turboset. The system comprises a turbine, a corresponding water-cooled condenser, a dead steam extraction system and a dead steam recycling heat supply system of a double step-up ratio steam increaser. The dead steam extraction system is connected to the water-cooled condenser and dead steam is transported and extracted to the dead steam recycling heat supply system of the double step-up steam increaser through a pipeline; the dead steam recycling heat supply system of the double step-up steam increaser is provided with a first steam increaser, a condenser of the first steam increaser, a second steam increaser and a condenser of the second steam increaser; the first and second steam increasersare different in step-up ratio; a heat net circulating water pipeline is connected to the condenser of the first steam increaser and the condenser of the second steam increaser for heating. Dead steamwaste heat of a water-cooled turbine of a heat-engine plant is recycled efficiently, the utilization amount of dead steam is improved, the heat supply capacity is improved, the cold end loss is reduced to the maximum extent, and the energy-saving benefit is maximized.

The invention discloses rice flour with black rice and relates to rice flour in food. The rice flour with the black rice is characterized by being prepared from the following raw materials in parts by weight: 15-20 parts of black rice, 5-10 parts of rice, 10-15 parts of black soybeans, 10-15 parts of black fungus and 10-15 parts of walnuts. The rice flour with the black rice, which is disclosed by the invention, is reasonable in raw material matching, rich in nutrition and is favorable for mechanical processing; the rice flour tastes delicious and particularly contains much black rice flour, so that the rice flour is suitable for people suffering from juvenile canities, women suffering from postpartum weakness, people with poor health after illness, people suffering from anemia and people suffering from kidney deficiency.

The invention discloses a double-pre-film pneumatic nebulization low pollution combustor head structure. Combustion is organized in a combustor head in a center classification mode. The combustor head structure is divided into a main combustion level and a pre-combustion level. The pre-combustion level is of a double-level swirl cup structure, combustion is organized in a partially premixing mode, and the requirements for combustion stability and pollutant discharge of small working conditions are met. The main combustion level is of an axial swirler double-pre-film structure, combustion is conducted in a combustor in a premixing mode, and combustion pollutants can be effectively reduced through premixing combustion. The double-pre-film type main combustion level structure comprises two stages of independent oil collecting rings, two stages of axial swirlers and two stages of pre-film plate structures. Each stage of independent oil collecting ring is provided with a plurality of beveled fuel injection holes. Each stage of fuel is injected out through the fuel injection holes and then strikes the pre-film plates to be expanded into oil films. The structure is beneficial for fuel classification of the whole combustor under different working conditions, ensures reasonable oil-gas distribution, and further reduces the pollutant discharge level in the whole cycle of landing and taking off of the combustor of an aero-engine.