298 results about "Ignition system" patented technology

The invention discloses an experimental device and an experimental method for combustible gas explosion discharge of a communicating container, and belongs to the field of combustible gas explosion protection. The experimental device comprises a communicated discharge container, a gas distribution system, a high-voltage ignition system, a data acquisition system, a high-speed schlieren system and a synchronous control system. The experimental device and the experimental method can be used for experimental research on combustible gas explosion release of the communicating container; the influence rules of factors such as static action pressure (Pstat), discharge caliber (Dv), discharge coefficient (Kv), spherical explosion container volume ratio (V1 / V2), communication pipeline length (L), communication pipeline diameter (D), fuel gas equivalence ratio (phi), ignition position (IIn) and ignition energy (E) on flammable gas explosion discharge overpressure and discharge flame are analyzed; and the formation factors of internal and external discharge overpressure peak values (a peak value Pb formed by rupture of a discharge diaphragm, a peak value Pex formed by external secondary explosion, a peak value Ph formed by Helmholtz oscillation, a peak value Pac formed by sound wave coupling and a peak value Pred formed by a maximum flame area), a discharge gas cloud structure, a discharge flame form and an external pressure wave evolution rule are explored.

The invention belongs to the technical field of coal field fire evolutionary analysis, and particularly provides a visual coal field fire evolutionary process analog simulation test device and method. The test device comprises a test bench, a physical similarity model, a fiber bragg grating temperature and stress integrated monitoring system, a multi-gas monitoring system, an image and video monitoring system and a computer analysis system. A plurality of opening frames are sequentially fixed to form test box bodies, the physical similarity model is arranged in the test box bodies, the inclination angle of the test box bodies is adjusted through an inclination angle adjusting mechanism, and the gas supply system and the ignition system are connected between the test box bodies. The fiber bragg grating temperature and stress integrated monitoring system, the multi-gas monitoring system and the image and video monitoring system are respectively in signal connection with the computer analysis system. According to the invention, visualization of coal field fire evolution processes under different conditions can be realized, and real-time monitoring of change rules of a temperature field, a seepage field and a fracture field in the coal field fire evolution processes under different conditions can be realized.

The invention relates to a composite injection hydrogen internal combustion engine and an injection control method thereof, and the composite injection hydrogen internal combustion engine comprises an air inlet system, a low-pressure air inlet channel hydrogen supply system, a high-pressure in-cylinder direct injection hydrogen supply system, an ignition system and a control system, the control system dynamically adjusts the ratio of low-pressure gas inlet channel hydrogen injection to high-pressure cylinder internal direct injection hydrogen by correspondingly controlling the working states of the gas inlet system, the low-pressure gas inlet channel hydrogen supply system and the high-pressure cylinder internal direct injection hydrogen supply system, and specifically, the ratio of low-pressure gas inlet channel hydrogen injection to high-pressure cylinder internal direct injection hydrogen injection is adjusted according to the rotating speed and target power of an engine. The proportion of air inlet channel injection and in-cylinder direct injection is dynamically adjusted. Compared with the prior art, a composite double-injection mode is introduced, more accurate combustion control can be achieved, higher flexibility and adaptability are provided, the performance and combustion efficiency of the hydrogen internal combustion engine can be optimized within a wider working condition range, and the combustion stability and fuel economy of the engine are effectively improved.

The invention discloses a device and a method for preparing silicon nitride powder with high sintering activity by a self-propagating method. The method comprises the following steps: mixing silicon powder and silicon nitride powder to obtain a mixed raw material; putting a porous plate into a crucible, scattering magnesium powder on the porous plate, and stacking the mixed raw material on the magnesium powder; sealing and vacuumizing the crucible, then filling nitrogen, repeating the operation for a plurality of times, and keeping the nitrogen atmosphere and pressure in the crucible; igniting the magnesium powder in the crucible, and starting a self-propagating combustion reaction; and cooling the crucible to obtain the silicon nitride powder with high sintering activity. The device comprises an ignition system, a self-propagating autoclave and a temperature detection module, one end of the ignition system and one end of the temperature detection module extend into the self-propagating high-pressure kettle. According to the method and the device, a continuous ventilation low-pressure self-propagating method is adopted, sufficient nitrogen is ensured to participate in the reaction, the raw materials are completely reacted, the yield and the purity of the product are ensured, the alpha-phase content of the product is relatively high, and the self-propagating device is simple in structure and convenient to operate.

The invention discloses a precise sensing control method for the combustion state of an internal combustion engine. The method comprises the steps that S1, parameters are collected; s2, establishing a neural network model, training the neural network model, and identifying the running state of the internal combustion engine; s3, a fuzzy language is established, and respective fuzzy adjustment amounts of a fuel injection system, a valve transmission system and an ignition system are obtained; s4, self-adaptive control models of the fuel injection system, the valve transmission system and the ignition system are established respectively, and the self-adaptive adjustment amount of the fuel injection system, the self-adaptive adjustment amount of the valve transmission system and the self-adaptive adjustment amount of the ignition system are obtained; and S5, carrying out weighted fusion on the fuzzy adjustment amount and the adaptive adjustment amount to obtain a final adjustment amount. By collecting multi-dimensional operation parameters in real time, extracting time domain and frequency domain features and combining a deep neural network model, precise recognition and early warning of the operation state of the internal combustion engine are achieved, detection and response can be made in time when the working condition of the internal combustion engine changes slightly, and the problem that a traditional control system is lagged in response is solved.

The invention discloses a fire extinguishing water spraying intensity detection method for propellant fire in the field of propellant fire extinguishing. A superspeed deluge system, an ignition system, a charging device and a weighing device are included. The ultra-high-speed deluge system comprises a high-speed detector, a control system, a quick opening valve, a sprinkler head, a water supply pipe, a pressure water supply device and an air supply device; the ignition system comprises a resistance wire, an ignition circuit and an ignition device.The fire extinguishing water spraying intensity detection method for the propellant fire is provided for solving the problems that the propellant fire cannot be extinguished through the water spraying intensity of an existing deluge system, and an ultra-high-speed deluge system cannot be effectively applied to a propellant production site. The problem that an existing propellant powder production place does not have a key parameter of fire extinguishing water spraying intensity is solved, effective application of the ultra-high-speed rain extinguishing technology in the propellant powder production place is achieved, and safety of production personnel and equipment is protected.

The invention discloses a metal product surface sealing device based on an underwater explosion cladding technology, and belongs to the technical field of metal surface treatment. A pressure-resistant cavity is formed in the sealing box body, a buffer supporting structure is arranged at the bottom of the sealing box body, and a fuel tank and a combustion-supporting gas input connector are arranged at the top of the sealing box body; the two oppositely-arranged fixing assemblies are arranged in the pressure-resistant cavity, and a base plate and a covering plate are arranged between the two fixing assemblies; the ignition assembly comprises a mounting shell, a pulse igniter, a safety interlocking module and a power management unit are integrally mounted in the mounting shell, and the gas circuit control system comprises a fuel conveying pipeline and a combustion-supporting gas input pipeline which communicate with a fuel tank. According to the device, efficient and safe operation of underwater explosion compounding is achieved through collaborative innovation of multiple assemblies, the adjustable fixing assembly guarantees the positioning precision of the base plate / covering plate, the intelligent ignition system avoids the ignition failure risk, gas path closed-loop control optimizes the explosion energy stability, and the service life of the device is prolonged through a buffer supporting structure.

The invention discloses an experimental device and an experimental method for gas / dust explosion flame-shock wave superposition coupling effect and combustible medium explosion transition induced by gas / dust explosion flame-shock wave superposition coupling effect under multi-parameter influence. Comprising a visual explosion system, a gas leakage diffusion system, a powder leakage diffusion system, an ignition system, a gas supply system, a powder spraying system, a discharge system, a displacement regulation and control system, a data acquisition system, a synchronous controller and a program control and data acquisition system. According to the experimental device and the experimental method for the gas / dust burning flame-shock wave superposition coupling effect under the influence of the multiple parameters and the induced combustible medium burning explosion transition thereof, the action processes of mutual impact, superposition, coupling and the like of detonation / detonation head-on flame-shock wave under the multiple working condition parameters can be realized; and the experimental study on the process of inducing the leakage diffusion combustible medium explosion transition and the critical condition thereof fills the technical blank of the study on the explosion flame-shock wave coupling effect process and the secondary disaster evolution mechanism induced under the influence of multiple parameters.

An ignition diagnostic system and method for evaluating and optimizing the ignition performance of internal combustion engines (ICEs), such as those that burn hydrogen (H2) and / or other fuels. According to one example, the ignition diagnostic system and method use an artificial intelligence (AI) model with one or more machine learning (ML) algorithm(s) to identify, predict and / or otherwise evaluate abnormal combustion events, and to provide such information to an electronic control unit (ECU) in real-time. The ECU, in turn, can make combustion-related modifications to one or more components of the ignition system to optimize performance. By integrating the AI model into the ignition diagnostic system and method, a fast and simplified solution is provided that can be implemented across a wide variety of ICEs, including those that burn alternative fuels, where detecting abnormal combustion events and monitoring combustion-related parameters can be important.

The present invention relates to a vertically arranged nozzle reaction thrust structure with an array distribution, which includes a cabin section housing, a reaction thrust engine, a connecting rod, and an ignition system; the reaction thrust engines are symmetrically distributed in a circumferential array along the inner wall surface of the cabin section housing, and are connected to the cabin section housing through a connecting rod and a nozzle housing flanging structure; the ignition system is a non-electrically transmitted explosion ignition system, which includes an igniter and detonating cords. The non-electrically transmitted explosion ignition system is connected to the cabin section cable through the igniter end and is connected to the reaction thrust engines one-to-one through multiple detonating cords; the axis of the nozzle assembly is perpendicular to the axis of the combustion chamber; an adiabatic ring is bonded to the inner wall surface of the combustion chamber housing, and a converging ring is bonded to the interface of the combustion chamber housing; a throat liner is bonded to the inlet of the nozzle assembly. The present invention can adapt to the axial layout space of the projectile body, increase the effective payload, and improve the missile range under the strict limitation of the axial dimension.

According to the system and the control method for improving the sinter quality of the sintering machine, the oxygen concentration in ignition combustion-supporting gas is actively and intelligently adjusted, and traditional passive adaptation is converted into active precise adjustment and control. And the mixing flow of the oxygen-enriched gas is dynamically adjusted according to monitored real-time data, so that the constant optimal ignition intensity is maintained. And then an optimized ignition system matched with oxygen-enriched ignition is designed, and generation of high-strength binding phase calcium ferrite is facilitated. And finally, through safety interlocking, when combustion-supporting air is abnormal, the oxygen content is too high and no coal gas is supplied, an oxygen-enriched pipeline stop valve needs to be closed, so that the system safety is guaranteed. The ignition uniformity and stability are improved, the ore return rate is effectively reduced, and a virtuous cycle is formed.

Road vehicle comprising a powertrain system; an ignition system for the powertrain system comprising in turn a slot integral with the passenger compartment of the road vehicle and configured to receive and accommodate a key for the ignition of the road vehicle; wherein the ignition system comprises a detection system, configured to detect the presence or absence of the key at the slot, and a control unit, which is connected to the detection system and to the powertrain system and is configured to enable the power supply to the powertrain system only when the key is detected at the slot.

A heating system that combusts solid fuel includes a firepot configured to hold the fuel to be combusted therein. The heating system also includes a contactless ignition system including a heating element configured to generate heat sufficient to combust the fuel within the firepot, and an element housing interfaced with the firepot. The element housing is configured to at least partially surround the heating element to prevent the heating element from contacting the fuel within the firepot.

The invention discloses a gas-solid two-phase explosion venting dynamic inhibition experiment system and method, and belongs to the field of explosion venting, and the gas-solid two-phase explosion venting dynamic inhibition experiment system comprises an explosion container, a gas distribution system, a dynamic ignition system, a data acquisition system, a dynamic water mist / powder explosion inhibition system and a computer. The dynamic water mist / powder explosion suppression system comprises a water inlet block which is movably clamped on the inner wall of the upper side of the explosion container, can move along a second strip-shaped hole in the wall and is sealed. The flat plate part is connected with a water inlet pipe (extending out of the container), and a cavity is formed in the flat plate part; and a third rubber ring is arranged at the arc plate part to seal the rotator. The water inlet block is communicated with the rotator through a first through hole and a second through hole respectively, and a water mist / powder sprayer is arranged at the lower end of the rotator. The water inlet block is provided with a support which is provided with a driving structure to enable the rotator to rotate. According to the device and the method, the difference between dynamic explosion suppression and static explosion suppression can be explored, and the coupling effect between dynamic explosion suppression and the explosion source position can be explored.

The invention provides an ignition system of a methanol rarefied engine and a vehicle. The system comprises an ignition device and a control system. The ignition device comprises a main combustion chamber and a pre-combustion chamber; the main combustion chamber is provided with an air inlet for introducing air into the chamber and a main ejector for ejecting methanol; the pre-combustion chamber is provided with an ignition injector, a multi-electrode spark plug and a plurality of injection holes communicated with the main combustion chamber; the control system is configured to regulate and control the injection pressure, the injection amount, the injection moment and the ignition moment of the main combustion fuel and the ignition fuel in real time by monitoring the rotating speed, the air inlet amount and the environmental parameters of the engine in real time, so that stable ignition under different working condition parameters is achieved, and the air-fuel ratio under various working conditions is regulated and controlled. By optimizing the ignition system, the engine can be stably ignited and efficiently combusted under different environment working conditions, so that the economic performance of the methanol rarefied engine is further improved on the basis of realizing stable ignition.

The invention provides a rotor type internal combustion engine and a design method thereof, and relates to the technical field of internal combustion engines. One or more air cylinders are arranged on the peripheral side of the rotor shell, an oil sprayer and a spark plug are arranged in each air cylinder, and a transition air channel is arranged between each air cylinder and the rotor chamber; the rotor is arranged in the rotor chamber; the air inlet channel is arranged on the air cylinder and used for introducing compressed air into the air cylinder, and an air inlet valve is arranged at the air inlet channel of the air cylinder; the exhaust passages are arranged on the side wall of the rotor shell and used for exhausting air to the outside from the rotor chamber, the number of the exhaust passages is consistent with that of the cylinders, and exhaust valves are arranged at the exhaust passages of the rotor shell; the fuel supply system is used for supplying fuel into the air cylinder; the ignition system is used for igniting the interior of the air cylinder; and the electric control system is used for controlling start and stop of the air inlet valve, the exhaust valve, the fuel supply system and the ignition system. The invention has the effects of reducing the energy loss of the internal combustion engine and enlarging the application range.

The present invention relates to a traditional cigarette with a heating structure similar to that of a heat-not-burn cigarette, which provides a heat source that utilizes a chemical reaction, and provides convenience to consumers by providing a cigarette stick equipped with an ignition system that can ignite regardless of the environmental conditions of the smoking area.

The present application belongs to the technical field of distributed cooperative control system, and discloses a multi-point high-precision cooperative ignition system for firework display, comprising: a central controller which non-timely distributes delay time stamps to a plurality of distributed ignition modules and broadcasts a content-neutral synchronization event at a starting moment; the distributed ignition module starts a local timer upon detecting the synchronization event and autonomously counts down according to the pre-stored delay time stamp to execute ignition, the present application decentralizes intelligent time decision to the terminal, avoids the interference of signal physical transmission delay on the overall ignition precision of the system, and replaces the complex real-time clock synchronization and delay compensation mechanism in the traditional control system, so that the architecture simplifies the physical design and deployment complexity of the system, and improves the synchronization robustness and scalability when a large number of nodes work cooperatively.

An ignition system for a combustion engine, includes a combustor having an igniter configured to receive a series of electrical current pulses, and, responsive to each electrical pulse, to generate a spark. A sensor is configured to detect each electrical pulse to provide a signal indicative of the electrical pulse to a controller. The controller is configured to determine, prior to an injection of a fuel into the combustor, a spark rate of the igniter, determine whether the spark rate satisfies a spark rate threshold, and in response to a determination that the spark rate satisfies the spark rate threshold, initiate an injection of the fuel into the combustor.

A system and method for operating an ignition system. An ignition transformer has primary and secondary windings. A spark apparatus is connected with the secondary windings of the ignition transformer. One or more characteristics of a spark generated by the spark apparatus is provided. An electronic control unit is adapted to control the ignition transformer, such that, based on an identification of the spark using the one or more characteristics and the spark reference data, the electronic control unit sends control signals to the ignition transformer to modify the one or more characteristics of the spark. Modification of the one or more characteristics may occur in a same spark cycle as measurement of the one or more characteristics.

The utility model discloses a fault frequency counting mechanism for ignition system testing, which belongs to the field of ignition fault testing and is characterized by comprising a body mechanism, a connecting mechanism is mounted at the outer end of the body mechanism, a detection mechanism is mounted at the upper end of the body mechanism, and the connecting mechanism comprises an assembly ring. The assembling ring is located at the outer end of the body mechanism, the inner end of the assembling ring is slidably connected with symmetrically-distributed clamping blocks, the clamping blocks are located at the outer end of the body mechanism, and clamping grooves are formed in the outer ends of the clamping blocks; by arranging the clamping blocks and the positioning rods, when the ignition device needs to be detached from the tester, only the pair of positioning rods needs to be pulled, the positioning blocks release positioning limitation with the clamping blocks, then the clamping blocks are taken out from the interior of the assembly ring at the outer end of the tester, and the ignition device and the tester can be conveniently detached and installed; and the mechanism is more convenient to count and test the number of faults.

This invention discloses a bidirectional controllable heavy-duty gas turbine ignition nozzle, comprising: a cylinder; a bidirectional piston, slidably disposed along the inner wall of the cylinder, dividing the cylinder's air chamber into an upper air chamber and a lower air chamber; an end cap, fixedly connected to one end of the cylinder, the end cap having an interconnected end cap air inlet channel and an end cap high-pressure air nozzle, the end cap high-pressure air nozzle communicating with the upper air chamber; a mounting flange, fixedly connected to the other end of the cylinder, the mounting flange having an interconnected mounting flange air inlet channel and a mounting flange high-pressure air nozzle, the mounting flange high-pressure air nozzle communicating with the lower air chamber, and the mounting flange having a through hole; and an ignition rod, extending and retracting through the end cap into the cylinder and fixedly connected to the bidirectional piston, the ignition rod protruding from the bidirectional piston towards the mounting flange. This reduces the risk of ignition rod ablation.

The invention discloses a solid propellant high-pressure combustion flow field testing device and method based on a particle image velocity measurement technology. The solid propellant high-pressure combustion flow field testing device comprises a visual high-pressure combustion chamber, a solid propellant placement platform, an ignition system, a smoke purging and filtering system, a double-frame high-frequency shooting system and a high-frequency laser system. AlO particles generated by combustion of a solid propellant are used as tracer particles, so that the problem that the tracer particles are difficult to accurately inject in a combustion flow field in a high-pressure environment is solved; strong background radiation caused by combustion of the solid propellant is filtered through a narrow-band filter, and a movement track image of the tracer particles is obtained; by using the smoke purging and filtering system, the removal of AlOparticles during combustion of the solid propellant is realized, and the influence on the observation view and the sheet light source is avoided. The device is convenient to adjust, good in repeatability, low in manufacturing cost and convenient to disassemble and maintain, has high engineering applicability and experiment reliability, and can be suitable for any aluminum-containing solid propellant high-pressure combustion flow field testing experiment.

The utility model discloses a power and lighting system test device, which comprises a rack, a power system, a lighting system and a control system are integrated on the rack, the power system, the lighting system and the control system are connected, the lighting system and the control system are respectively connected with a storage battery, the power system is connected with an oil tank, and the oil tank is connected with the oil tank. The oil tank is connected with the ignition system, and the ignition system is connected with the control system. The device has the advantages that practical operation is carried out on starting, acceleration, deceleration, gear shifting and light switching working conditions of an engine, a gearbox and a light system, and the structure and the working process of vehicle power and light are truly displayed.

1. Name of the designed product: electromagnetic induction instrument. 2. Use of the designed product: for detecting automobile ignition system. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best showing the design points: perspective view.

The invention relates to the technical field of aero-engine fault detection, in particular to a self-detection ignition system for an aero-engine. The invention provides a self-detection ignition system which comprises an ignition exciter, an ignition cable and an ignition electric nozzle. The ignition exciter at least comprises a self-detection module and a fault resistance module. The fault resistor module forms a feedback resistor loop by a plurality of resistors with different resistance values and is used for feeding back a fault state or a normal working state of the ignition exciter; the self-detection module selects a corresponding resistor in the fault resistor module according to a detection result of internal fault information of the ignition exciter to be connected to the feedback resistor loop; and the engine electronic controller identifies and determines a corresponding fault mode according to an acquisition result of the resistance value of the feedback resistance loop. According to the method, the ignition failure reason can be rapidly judged when ignition fails, specific fault components can be accurately positioned when the ignition system breaks down, and the troubleshooting efficiency is improved.

The present invention discloses a device and method for studying the combustion and detonation mechanism of powder and gaseous fuel under different external conditions. The device includes a bomb body, a gas distribution platform, an adjustable energy high-energy ignition system, a combustion and detonation parameter synchronous acquisition system, and an ignition and valve control system. The bomb body is composed of the outer periphery of the bomb body and the upper and lower end surfaces, wherein a plurality of openings are provided on the inner wall of the bomb body for installing a plurality of variable measuring rods, an ignition device, and an intake and exhaust pipe. The present invention ignites a deflagration wave or a detonation wave in the bomb body through an adjustable energy high-energy ignition device, and then monitors the formation, propagation, and failure process of the detonation wave in the bomb body through a combustion and detonation parameter synchronous acquisition system and a smoke film and other means and obtains relevant parameters. Under different environmental conditions, the combustion and detonation mechanism of fuels and oxidizers with different physical and chemical properties sprayed by injectors of different configurations are studied.

The utility model relates to the field of oil and gas exploitation, in particular to a blowout pool for a sulfur-containing gas well, which comprises a combustion cylinder, an ignition system and a spraying system. And the combustion cylinder is arranged in the blowout pool body and is communicated with the tail end of the blowout pipeline. The ignition system comprises a spark plug, and the spark plug is located above the combustion cylinder. The spraying system comprises a spraying pipe, the spraying pipe is located above the open flow pool body, the spraying pipe is used for spraying alkaline liquid, and the spraying range of the spraying pipe can cover the whole open flow pool body. The spraying system capable of spraying the alkaline liquid is arranged above the blowout pool body, so that the alkaline liquid and hydrogen sulfide gas leaked from the combustion cylinder are subjected to neutralization reaction, and leakage and diffusion of the hydrogen sulfide gas can be effectively reduced.

The invention provides an oil injection control method of an ignition system, a storage medium and a vehicle, and belongs to the technical field of vehicles. The method comprises the steps that the current working condition type of an engine is determined based on the engine rotating speed and driver demand torque; an oil injection strategy corresponding to the current working condition type is determined; and based on the fuel injection strategy, the first fuel injector and the second fuel injector are controlled to conduct fuel injection operation. According to the embodiment of the invention, the distances among the first fuel injector, the second fuel injector and the sparking plug are reasonably arranged, and meanwhile, according to the current working condition type of the engine, a proper fuel injection strategy is specifically matched to control the first fuel injector and the second fuel injector to carry out fuel injection matching, so that mixed gas can be distributed more reasonably and ignited more easily; no matter what working condition the engine is in, stable ignition of the engine and stable combustion of flames can be achieved, and meanwhile the lean combustion effect is improved.

A first vehicle configured to jump start a second vehicle is disclosed. The first vehicle may include a first energy storage system, a second energy storage system, and a converter. The first vehicle may further include a switch between the second energy storage system and the converter, and a control unit. The control unit may obtain a user request to activate a jump start mode of the first vehicle, deactivate a vehicle load in the first vehicle, and cause the switch to operate in the ON state. The control unit may further cause the second energy storage system to supply a first amount of current to pre-charge a battery of the second vehicle for a predefined time duration, and cause the second energy storage system to supply a second amount of current to the battery to start a second vehicle ignition system when the battery is pre-charged.