22 results about "Dual injection" patented technology

This application discloses a method for manufacturing a single-dual injection die casting machine, which includes a head plate, a lower material injection frame, and an injection unit. The head plate and the lower material injection frame are fixed at a distance from each other. When there is one injection unit, the injection unit is attached to the center of the lower material injection frame so that it connects to the connection port in the center of the head plate. When there are two injection units, the injection units are symmetrically attached to both sides of the lower material injection frame so that they connect to the connection ports on both sides of the head plate. The head plate design method can be used to design head plates used in manufacturing the above-mentioned single-dual injection die casting machine. A beneficial effect of this application is that, compared to the conventional two independent methods of single die casting and dual die casting, this application can achieve two modes, single injection and dual injection, by simply changing the number of injection units, which can be independently adjusted according to actual production needs. This effectively broadens the application scope of this application and effectively reduces production costs.

The utility model relates to the field of injection molding machine discloses a kind of double-injection structure of automatic translation switching, including fixed mould plate and bearing platform, two injection platforms are arranged in parallel on bearing platform, and two injection platforms are each guided and slippage on bearing platform along injection direction, bearing platform is guided and slippage on body along perpendicular to injection platform injection direction, the movement of injection platform is controlled to whole shift oil cylinder, the movement of bearing platform is controlled to translation oil cylinder, positioning module for realizing accurate positioning when injection platform switching is arranged between body, bearing platform, fixed mould plate and injection platform, positioning module includes translation limiting block being arranged on the both sides of bearing platform on body, on-off structure being connectable or disconnectable between the piston rod end of whole shift oil cylinder and fixed mould plate and whole shift limiting block being arranged on bearing platform and limiting the maximum stroke of injection platform retreat, the double-injection structure can be automatically and accurately switched in subsequent after completing initial debugging, time-saving and labor-saving.

The invention discloses a multi-point single-point gas-liquid double-injection methanol engine. The multi-point single-point gas-liquid double-injection methanol engine is characterized in that an inlet of a gas inlet channel methanol gas rail is communicated with a first outlet of a methanol pump; the multi-point methanol nozzle group is arranged at the methanol gas rail of the gas inlet channel, and is used for spraying methanol liquid to a plurality of cylinder cover gas inlet channels corresponding to the multi-point methanol nozzle group; an inlet of the methanol evaporator is communicated with a second outlet of the methanol pump; an inlet of the gas methanol common rail is communicated with an outlet of the methanol evaporator; an inlet of the single-point methanol nozzle is communicated with an outlet of the gas methanol common rail; the single-point methanol nozzle is arranged on the methanol-air mixer and is used for spraying methanol gas into the methanol-air mixer, and the gas inlet end of the methanol-air mixer is communicated with the gas outlet end of the throttle valve; and the control system is in electrical data connection with the components. The methanol evaporation level can be improved by adjusting the injection amount of single-point injection of the air inlet channel, and the problem that the power and torque of a traditional methanol engine are difficult to improve due to insufficient evaporation heat is solved.

The invention relates to an SCR double-spraying system and a cooperative control method thereof, and relates to the technical field of automobile and engine aftertreatment. The system comprises a first urea nozzle, a first selective catalytic reducer, an ammonia escape catalyst, an oxidation catalyst, a particulate matter trap, a second urea nozzle, a second selective catalytic reducer and another ammonia escape catalyst which are arranged behind an engine and in the airflow direction. The first urea nozzle is arranged at the front end of the first selective catalytic reducer and is of a tight coupling structure with the engine. By combining the ammonia storage capacity and catalytic efficiency of the first selective catalytic reduction device and the second selective catalytic reduction device, the injection proportion of the first urea nozzle and the second urea nozzle is distributed so as to control the urea injection amount. According to the method, the urea injection proportion of the upstream and downstream urea nozzles can be reasonably distributed under different exhaust flow and exhaust temperature conditions, it is ensured that generation of N2O is restrained while the NOx emission target is achieved, cooperative control over NOx and N2O emission is achieved, and the requirements of future emission regulations are met.

We provide a magnesium-aluminum dual injection die-casting machine and injection system. [Solution] The magnesium-aluminum dual injection die-casting machine includes a die-casting machine body, an injection module, and a melting module, wherein the injection module is mounted on the side of the die-casting machine body so as to be aligned linearly with the die-casting machine body, and the melting module is provided perpendicular to the die-casting machine body so as to be connected to the injection module, and the magnesium-aluminum dual injection system uses the magnesium-aluminum dual injection die-casting machine described above.

This invention provides a raw material addition mechanism for canned pork small intestine, relating to the field of raw material addition technology. It includes a feeding pipe with a spiral conveying rod rotatably connected inside. A motor is located on one side of the feeding pipe, and the motor's output end is fixedly connected to one end of the spiral conveying rod. An inlet pipe is located on the side wall of the feeding pipe. It also includes an injection mechanism, with two sets symmetrically arranged about the feeding pipe, each including a protective shell containing a flexible tube. A material extrusion ring is rotatably connected inside the protective shell, and the extrusion ring abuts against the surface of the flexible tube. Furthermore, it includes a start-stop mechanism, with two sets symmetrically arranged about the feeding pipe, each including a push rod with a push spring connected inside. This mechanism, through its alternating operation design of the dual injection mechanisms and start-stop control system, solves the efficiency bottleneck problem of traditional single-station intermittent production, achieving continuous and efficient raw material addition.

The application discloses a novel double-injection system for a hydrogen internal combustion engine and belongs to the technical field of internal combustion engine injection, and solves the technical problem that the fast combustion speed of hydrogen often leads to early combustion, knocking or backfire. The application comprises an internal combustion engine body, a water tank, a hydrogen tank and a hydrogen-water double nozzle, the hydrogen-water double nozzle is installed in the combustion chamber of the internal combustion engine body, the water tank is connected with the water inlet hole of the hydrogen-water double nozzle through a water pipe, the hydrogen tank is connected with the hydrogen inlet hole of the hydrogen-water double nozzle through a hydrogen pipe, the water pipe is provided with a water pipe electromagnetic valve, the hydrogen pipe is provided with a hydrogen pipe electromagnetic valve, and the controller of the internal combustion engine body determines the hydrogen injection amount and the water injection amount according to a hydrogen-water mixing amount model and controls the water pipe electromagnetic valve and the hydrogen pipe electromagnetic valve to work according to the hydrogen injection amount and the water injection amount. The hydrogen-water mixing can lower the ignition point of hydrogen, realize the effect of controlling the combustion temperature, lowering the emission, improving the combustion product, reducing the knocking, improving the thermal efficiency and reducing the noise.

The double-injection methanol engine comprises a supercharger, an intercooler, an air inlet manifold and an air cylinder, the pressure end of the supercharger is connected with the intercooler through an intercooling front air inlet pipe, the intercooler is connected with the air inlet manifold through an intercooling rear air outlet pipe, and the air inlet manifold is connected with the air cylinder through a plurality of cylinder cover air inlet channels; the device further comprises a first methanol gas rail, a second methanol gas rail, a first nozzle, a second nozzle, a gas rail branch pipe, a methanol pump and a controller. A part of methanol is injected before intercooling, and the methanol is heated by utilizing the heat energy of gas before intercooling of a supercharger, so that the methanol entering a cylinder is completely vaporized, and the vaporization rate of methanol fuel is realized. And the economical efficiency and reliability of the engine are improved. According to the methanol engine, the injection amount of the methanol nozzles of the intake manifold can be reduced, large-flow or methanol double-nozzle arrangement does not need to be achieved, the methanol nozzles can be better arranged in the effective space of the intake manifold, and therefore the mixing uniformity in an engine cylinder is improved, and the economical efficiency of the whole engine is improved.

Provided are a dual injection system and a synchronization control method thereof. The system includes a primary injection system and a secondary injection system, where the primary injection system and the secondary injection system each include a speed injection oil circuit and a booster oil circuit; the speed injection oil circuit of the primary injection system and the speed injection oil circuit of the secondary injection system are arranged independently of each other; and the booster oil circuit of the primary injection system and the booster oil circuit of the secondary injection system each include an A-bridge valve group and are arranged in coordination with each other. The method is configured to perform a synchronization control on the primary injection system and the secondary injection system of the system.

The disclosure provides a double injection planar magnetic control injection electron gun, which comprises a focusing electrode, two strip-shaped cathodes, an anode and a magnetic field generating assembly. The focusing electrode comprises two inclined surfaces extending in the Z-axis direction and arranged oppositely, the two strip-shaped cathodes are respectively installed on the inclined surfaces of the focusing electrode in parallel with each other, and the inclined surfaces are introduced with clockwise or counterclockwise rotation, and the cathodes are configured to respectively emit electrons after being heated; the anode forms an electric field with the two strip-shaped cathodes to accelerate the emitted electrons to form an electron beam; the electron beam rotates under the action of the magnetic field generated by the magnetic field generating assembly to form two strip-shaped electron beams, and reduce the included angle between the cross section of the motion trajectory of the two strip-shaped electron beams in the XY plane and the ZX plane.

A thermoplastic elastomer composition exhibiting improved dual injection moldability with PP, lower hardness, and reduced low-temperature storage modulus change is produced by blending appropriate proportions of a siloxane-based additive, a lubricant, and a thermoplastic vulcanizate (TPV). The siloxane-based additive and lubricant are optimized to enhance processability and mechanical properties, while the TPV component, which includes an ethylene propylene diene monomer (EPDM) and polypropylene resin, contributes to increased elasticity and stability. The formulation balances flexibility and strength, with the siloxane additives improving surface properties and the lubricant reducing friction.This composition is suitable for various applications requiring robust elastomer performance, particularly in molded parts where low-temperature resilience and high processability are crucial. The total polypropylene content is controlled to a maximum of 5% by weight to ensure optimal performance.

The utility model provides a kind of tight coupling SCR mixer, including mixing pipe, mixing pipe includes air inlet, gas outlet and barrel pipe body, air inlet is located at one end of barrel pipe body, air inlet is used to be connected with supercharger gas outlet end, gas outlet is located at the other end of the barrel pipe body, the pipe wall of the barrel pipe body is provided with nozzle seat installation mouth, nozzle seat installation mouth is used to install nozzle seat, the inner chamber of the barrel pipe body is provided with flow guide baffle and cyclone vane, flow guide baffle is located between the air inlet and the nozzle seat installation mouth, cyclone vane is located between the flow guide baffle and the gas outlet, so that the airflow entering from the air inlet is first adjusted airflow direction by flow guide baffle to prevent airflow from blowing injection droplet to the inner wall of the barrel pipe body, then after forming cyclone gas by the cyclone vane and mixing with injection droplet, discharge from the gas outlet.The utility model also provides corresponding double-injection aftertreatment system.

The present application provides a urea supply and injection system with dual injection function and a control method thereof, wherein the system includes a urea supply device, an air-assist device and a mixing chamber, wherein the urea supply device and the air-assist device are respectively connected to the inlet end of the mixing chamber; the urea supply device is used to provide urea liquid into the mixing chamber; the air-assist device is used to provide compressed air into the mixing chamber to assist in the injection of urea liquid; the outlet end of the mixing chamber is connected to two injection pipelines, which are arranged in parallel and are respectively connected to the ccSCR device and the SCR device; a constant pressure reducing valve and a second solenoid valve are sequentially arranged on the injection pipeline from the end close to the mixing chamber to the end away from the mixing chamber, and the constant pressure reducing valve is used to control the pressure in the injection pipeline. The urea supply and injection system with dual injection function provided by the present application has a simple structure and can realize that the two injection pipelines can independently and accurately meet various working conditions.

The application discloses a double-injection-port injection molding machine and relates to the technical field of injection molding machines.The application comprises a machine body, and further comprises an injection mechanism, wherein the injection mechanism comprises two sliding seats symmetrically and slidingly arranged on the machine body, a screw extrusion rod is horizontally and rotatably arranged on each of the two sliding seats, two transmission pipes are symmetrically arranged on the machine body, and one end of each of the transmission pipes, which is away from the sliding seat, is an injection port.The application adjusts the initial position of the sliding seat through an adjusting assembly, and after the adjustment, the two sliding seats are simultaneously and oppositely moved through a driving assembly, so that the screw extrusion rod moves in the transmission pipe, the screw extrusion rod extrudes the raw material in the transmission pipe in the moving process, the raw material in the transmission pipe is extruded into the mold from the injection port, and the batch injection of two molds is simultaneously realized, so that the working efficiency is improved.

This invention relates to the field of engine technology and discloses a high thermal efficiency, large-angle engine assembly, including a gasoline engine body, an intake manifold assembly, a throttle body assembly, dual injection rails, an exhaust manifold assembly, an EGR cooler, a water pump assembly, an EGR system, a cooling system, a bypass cooling system, and a front-end wheel train. The EGR system includes an EGR pipe assembly, an EGR valve, an EGR cooler, an EGR temperature sensor, and an EGR intake pipe. The gasoline engine body is arranged at an angle of 45°–60°. In this invention, the engine adopts an overall layout structure with a large tilt angle of 45°–60°. By employing advanced technologies such as dual-port injection, centrally located DVVT, an oil cooler, a cooled EGR, and an integrated exhaust manifold in the cylinder head, combined with multiple friction-reducing technologies such as DLC-coated tappets, the engine's thermal efficiency is improved, and its fuel consumption is reduced. Furthermore, by optimizing the layout and compacting the component design, the engine's overall dimensions are reduced, effectively solving the problem of insufficient space in small engine compartments.

The invention provides a thermoplastic elastomer composition, a molded product containing the thermoplastic elastomer composition, a vehicle exterior mirror and a vehicle. Thermoplastic elastomer compositions exhibiting higher dual injection performance with PP, lower hardness, and lower storage modulus variation at lower temperatures are prepared by mixing appropriate amounts of a siloxane-based additive, a sliding agent, and a thermoplastic vulcanizate (TPV) in a thermoplastic elastomer. Siloxane-based additives and sliding agents are optimized to improve processability and mechanical properties while TPV components, including ethylene propylene diene monomer (EPDM) and polypropylene resin, contribute to enhanced elasticity and stability. The formulation balances flexibility and strength, wherein the siloxane additive improves surface properties and the sliding agent reduces friction. The composition is suitable for use in various applications requiring robust elastomer properties, especially in moldings in which low temperature resilience and high processability are critical. The total polypropylene content is controlled to ensure the optimal performance, and the optimal performance does not exceed 5wt%.

Provided are a dual injection system and a synchronization control method thereof. The system includes a primary injection system and a secondary injection system, where the primary injection system and the secondary injection system each include a speed injection oil circuit and a booster oil circuit; the speed injection oil circuit of the primary injection system and the speed injection oil circuit of the secondary injection system are arranged independently of each other; and the booster oil circuit of the primary injection system and the booster oil circuit of the secondary injection system each include an A-bridge valve group and are arranged in coordination with each other. The method is configured to perform a synchronization control on the primary injection system and the secondary injection system of the system.

This application discloses a magnesium aluminum dual injection die casting machine and injection system, the magnesium aluminum dual injection die casting machine including a die casting machine body, an injection module, and a melting module, the injection module is attached to the side of the die casting machine body so as to be aligned in a straight line with the die casting machine body, the melting module is installed perpendicular to the die casting machine body so as to be connected to the injection module, and the magnesium aluminum dual injection system uses the above-mentioned magnesium aluminum dual injection die casting machine.

The invention discloses a control circuit and a power converter thereof, the control circuit is used for the power converter, the power converter is provided with an input voltage and an output voltage, and the control circuit comprises a ramp generator, an operational circuit and a comparator. The ramp generator is used for receiving the input voltage or the output voltage to generate a ramp voltage. The operation circuit is used for generating a second error voltage according to a first error voltage and an operation result of the input voltage, and the first error voltage is generated by the output voltage. The comparator is coupled to the ramp generator and the operational circuit and is used for comparing the second error voltage with the ramp voltage to generate a control signal.

The application provides a diagnosis method, device and vehicle for an SCR double-injection urea equipment, which comprises the following steps: in the case that the change rate of the pressure value of the pumping equipment is less than a first preset value, closing two nozzles, adjusting the pressure value of the pumping equipment, and obtaining the change rate of the pressure value in the adjustment process to obtain a first change rate; in the case that the first change rate is not located in a first predetermined range, determining that a flow structure has a fault; in the case that the flow structure has no fault and the change rate of the pressure value is less than a second preset value, opening a target nozzle to spray urea, the target nozzle being one of the two nozzles; obtaining the change rate of the pressure value in the process of spraying urea by the target nozzle to obtain a second change rate; and determining whether the target nozzle has a fault according to the second change rate, and in the case that the second change rate is not located in a second predetermined range, determining that the target nozzle has a fault. The application solves the problem of difficult and timely discovery of the fault of the SCR double-injection urea equipment.

The invention provides a two-material injection molded part. The double-material injection molding part comprises a first material part and a second material part, the first material part is provided with a groove and a through hole, the groove has caliber change, and the through hole is located in the groove and penetrates through the groove; the second material piece is provided with a first bearing part, a second bearing part, a first connecting part and a second connecting part, the first bearing part leans against the inner surface of the first material piece, the second bearing part leans against the outer surface of the first material piece, and the first connecting part is connected with the first bearing part and the second bearing part from the upper edge of the first material piece; and the second connecting part penetrates through the through hole and is connected with the first bearing part and the second bearing part.

An engine and control method, electronic device, storage medium, and vehicle, wherein the control method includes: obtaining an engine operating condition; obtaining an alcohol ratio in the engine; determining a fuel injection mode and injection ratio based on the operating condition and the alcohol ratio; controlling engine operation based on the fuel injection mode and injection ratio; determining the injection mode to be a direct injection mode; determining the injection mode to be a dual injection mode and determining the injection ratio to be a first injection ratio; determining the injection mode to be a dual injection mode and determining the injection ratio to be a second injection ratio; determining the injection mode to be a dual injection mode and determining the injection ratio to be a third injection ratio. This application can alleviate the problems of cold start difficulty, poor low-temperature operating performance, knock, and pre-ignition that arise when using only port injection mode, as well as the problems of insufficient injection duration and high rail pressure corrosion that arise when using only direct injection mode.