1010 results about "Spark plug" patented technology

The invention discloses an air cooling system of an engine and the engine, the air cooling system comprises an engine body and a cooling system, the cooling system comprises a fan assembly, and the fan assembly comprises a fan and a fan cover provided with an air outlet I; the wind scooper is used for forming a cooling air duct for cooling the engine body, and the cooling air duct communicates with the air outlet I; the flow guide piece is arranged in the cooling air duct and used for forming a cooling air branch air duct to distribute and guide the cooling air to the area, close to the air inlet side, of the cylinder head spark plug I; according to the air cooling system of the engine and the engine, the air guide cover is connected with the fan cover, so that the cooling air channel for cooling the cylinder body and the cylinder head is formed, sufficient cooling of the cylinder body and the cylinder head can be achieved, meanwhile, the cooling effect on a spark plug can be improved by arranging the flow guide piece to guide cooling air to the spark plug area of the cylinder head, and the service life of the engine is prolonged. The utilization rate of cooling air is increased, heat dissipation of all parts of the engine is uniform, and therefore the requirements for dynamic property, economical efficiency and reliability of the engine are met.

A precombustion chamber igniter with a retractable electric glow plug and a cold start control method for a methanol engine are provided. The precombustion chamber igniter includes a fuel injector, a spark plug, and an electric glow plug. The electric glow plug is retractable and has two working positions, at a first position, a heating segment is wholly located in an injection chamber to provide heat energy for the injection chamber, and at a second position, the heating segment is partially located in the injection chamber and passes through a first through hole, and the rest of the heating segment is located in a main combustion chamber of an engine, to provide heat energy for the injection chamber and the main combustion chamber. In a cold start stage of the engine, the heating segment of the electric glow plug is controlled to be located at the second position.

A pre-ignition prevention system for a turbulent jet ignition (TJI) engine having dual spark plugs includes an ion sensing system and a controller configured to receive the ion sense signal from the ion sensing system, detect, using the ion sense signal, a misfire event where a firing of a first spark plug fails to completely combust a fuel / air pre-charge in a pre-chamber of a cylinder of the TJI engine, in response to detecting the misfire event, detect, using the ion sense signal, an exhaust stroke heat release event after a firing of the second spark plug indicative of a remaining portion of a primary fuel / air charge in the main chamber and, in response to detecting the exhaust stroke heat release event, adjust fueling for at least one subsequent combustion cycle to prevent pre-ignition of the remaining portion of the primary fuel / air charge in the main chamber.

Liquefied natural gas brings energy overriding and environmental disruption. However, the liquefied natural gas is a liquid dielectric medium, can be easily liquefied by pressurizing at room temperature, can be expanded by more than 250 times in volume during gasification, and is relatively high in dielectric constant and relatively low in voltage resistance. As a capacitor, such a liquid dielectric is considered; the energy of the liquid dielectric capacitor is consumed inside the capacitor for an engine, welding or buoyancy gas generation, or is consumed outside the capacitor for use as an on-board capacitor for a vehicle. [Solution] A liquid dielectric capacitor is considered as a dielectric breakdown induced igniter that can replace a conventional spark plug. In order to utilize the principle of such an igniter as an energy source for an engine, a welding device or a buoyancy bag for lifting a subsea resource, an electrical charge is applied to the liquid dielectric thin layer, and then the thickness of the liquid dielectric thin layer is made close to zero to cause dielectric breakdown, or the thickness of the liquid dielectric thin layer is increased to cause breakdown of the liquid dielectric thin layer. A high voltage source is established for a vehicle-mounted capacitor of the vehicle. Therefore, a world without environmental damage is realized.

An ammonia-rich combustion coupled dual-mode prechamber ammonia-fueled engine control system is provided, including an ammonia-fueled engine and an electronic control unit. The ammonia-fueled engine includes a combustion chamber, a dual-mode jet ignition device, and an ammonia injector. The dual-mode jet ignition device includes a prechamber, an air injector, and a fuel injector. When the engine operates, ammonia fuel is firstly injected into the combustion chamber by the ammonia injector to form a rich ammonia-air mixture with air in the combustion chamber. During a compression stroke of the engine, the rich ammonia-air mixture in the combustion chamber is entered into the prechamber through a jet hole. The air injector performs scavenging in the prechamber until a equivalence ratio of prechamber gas mixture is less than 1.0, and then the fuel injector injects fuel into the prechamber forming target mixture. Finally, the target mixture is ignited by the spark plug.

The invention provides an injector based on a liquid oxygen methane two-component propellant and an attitude control engine, and the injector comprises an injector body, a centrifugal nozzle assembly and a spark plug; the centrifugal nozzle assembly is arranged on the injector body, and the injector body is provided with a liquid collecting cavity; a propellant in the storage box is guided to the liquid collecting cavity and is sprayed to the spraying pipe through the centrifugal nozzle assembly; the sparking plug is arranged on the injector body, and an ignition part of the sparking plug is arranged close to an outlet of the centrifugal nozzle assembly so as to ignite the propellant sprayed into the spray pipe by the centrifugal nozzle assembly. The injector is more compact in structure, and the working reliability of the injector can be improved.

A system for detecting a source of a misfire for a turbulent jet ignition (TJI) engine having a first ignition device disposed in a pre-chamber of a cylinder head and a second ignition device disposed for communication with a main combustion chamber is presented. The system includes a controller that determines engine operating conditions; generates a first spark from the first ignition device at a first time; generates a second spark from the second ignition device at a second time; activates a skipfire mode based on a determination that the engine operating conditions are satisfactory, wherein in the skipfire mode, the controller generates a modified second spark at a modified second time, the modified second time being later than the second time; and determines a misfire event based on sensing ionization of gasses at the main combustion chamber subsequent to firing the first and second ignition devices.

The invention provides a liquid ammonia in-cylinder direct injection engine combustion system and method with an active pre-combustion chamber, and relates to the technical field of internal combustion engines, the liquid ammonia in-cylinder direct injection engine combustion system comprises a cylinder cover and a cylinder sleeve arranged below the cylinder cover, the pre-combustion chamber is vertically arranged in the center of the cylinder cover, a liquid ammonia injector is arranged on one side of the pre-combustion chamber, and the active pre-combustion chamber is arranged in the cylinder sleeve. A hydrogen ejector and a spark plug are arranged on the pre-combustion chamber; and spraying holes are formed in the pre-combustion chamber and located in the bottom of the pre-combustion chamber, and the spraying holes of the pre-combustion chamber face one side of the liquid ammonia ejector. According to the liquid ammonia in-cylinder direct injection engine combustion system and method with the active pre-combustion chamber, the effect that diffusion combustion is promoted through premixed combustion of ammonia fuel is achieved, accurate control over the combustion initial point and the heat release rate is achieved, and the requirements for the low hydrogen energy ratio, high ignition efficiency and high heat efficiency of an ammonia fuel engine in the full working condition range are met.

The invention relates to the technical field of combustion chambers, and provides a low-pollution combustion chamber which comprises a flame tube head, two sparking plugs, a flame tube outer ring and a flame tube inner ring, and the flame tube head is arranged between the flame tube outer ring and the flame tube inner ring and connected with the flame tube outer ring and the flame tube inner ring. A plurality of lean oil combustion structures and two rich oil combustion structures are arranged on the head portion of the flame tube in the circumferential direction, the two sparking plugs are arranged at different positions of an outer ring of the flame tube respectively, and each sparking plug and the corresponding rich oil combustion structure are located in the same area. Therefore, the ignition and flameout performance of the rich oil combustion structure is improved, flames can be stabilized in a small state, the lean oil combustion structure is responsible for reducing the emission level of the whole combustion chamber, the defects of the lean oil combustion structure and the rich oil combustion structure are overcome, and meanwhile the advantages of the lean oil combustion structure and the rich oil combustion structure are combined.

An avalanche triggering apparatus having a tower, a detonation chamber, and gas supply lines that are configured to deliver fuel gas and oxidizer to the detonation chamber. The flow is gas is controlled remotely, and a spark plug is configured to ignite gases within the detonation chamber based on the flow of fuel gas through a flow switch that acts as a sensor. The detonation chamber has a closed, rounded top and an open bottom end that is configured to face a snow surface. The detonation chamber is connected to the tower via mounting brackets and two pairs of isolator springs. Each isolator spring is comprised of a helical cable isolator that is inserted through a plurality of holes in two aluminum members in a helical configuration. The tower is comprised of at least two sections that are secured together via flanges.

The utility model discloses a combustible gas pulse combustion utilization device which comprises a gas inlet pipe, a Tesla valve, a spark plug, a plurality of front sleeves, a plurality of rear sleeves and a gas exhaust pipe, the number of the front sleeves is the same as that of the rear sleeves, the front sleeves are sequentially sleeved together from inside to outside to form a front sleeve group, the rear sleeves are sequentially sleeved together from inside to outside to form a rear sleeve group, and the gas exhaust pipe is arranged in the rear sleeve group. The tail portion of the front sleeve set is in butt joint with the rear sleeve set, the front sleeves correspond to the rear sleeves in a one-to-one mode, a Tesla valve is fixedly arranged in the front sleeve on the innermost layer, an air inlet of the Tesla valve is communicated with an air inlet pipe, an air outlet of the Tesla valve is provided with a spark plug, and an exhaust pipe is fixedly arranged in the rear sleeve on the innermost layer. A combustion cavity is formed between the front sleeve set and the rear sleeve set, and the longitudinal section of the combustion cavity is T-shaped, square, round or oval.

The invention discloses an integrated insulated and sealed engine semiconductor sparking plug structure, and particularly relates to the field of aviation and airspace engine ignition devices. Comprising a shell in which an insulator is sleeved; a first groove body, a second groove body, a third groove body and a fourth groove body which are communicated with one another are sequentially formed along the axial direction of the insulator; the sealing positioning piece comprises a baffle and a positioning rod which are vertically connected, the baffle is perpendicular to the insulator and located in the first groove body, and the outer diameter of the baffle is larger than the outer diameter of the positioning rod and smaller than the inner diameter of the first groove body; the positioning rod is located in the second groove body, and the outer diameter of the positioning rod is equal to the inner diameter of the second groove body; a positioning groove is inwards formed in the free end of the positioning rod; the central electrode is located in the insulator, one end of the central electrode extends into the positioning groove and is in threaded connection, and the other end of the central electrode is sleeved with a semiconductor block which is located in the fourth groove body. Based on the conductor sparking plug structure, the insulating strength can be improved, and the working performance of the semiconductor sparking plug in the whole life cycle is stable and reliable.

The invention relates to the field of fuel injection systems of internal combustion engines, in particular to a liquid ammonia-hydrogen dual-fuel premixing direct injection combustion chamber which comprises a pre-combustion chamber, an injection end of the pre-combustion chamber is mounted in the combustion chamber, and a spark plug and a mixed fuel injection structure are mounted on the pre-combustion chamber. The inlet end of the mixed fuel injection structure is communicated with a liquid ammonia and hydrogen mixing structure, a hydrogen inlet is formed in the side wall of the liquid ammonia and hydrogen mixing structure, the inlet end of the liquid ammonia and hydrogen mixing structure is communicated with a liquid ammonia injection structure, an ammonia inlet is formed in the side wall of the liquid ammonia injection structure, and a valve structure is arranged in the liquid ammonia injection structure. The problems of fuel injection and ignition in the ammonia-hydrogen fusion engine are solved.

The invention discloses a constant-volume optical test platform suitable for ammonia-hydrogen stratified combustion and a test method. The test platform comprises an experiment bench; the constant-volume combustion bomb is mounted on the experiment bench, and the interior of the constant-volume combustion bomb is divided into a combustion chamber and two heating chambers by two partition pieces; the ejector mounting seat is arranged at the top of the combustion chamber; the hydrogen ejector is mounted on the ejector mounting seat and is arranged towards the center of the combustion chamber; the two spark plugs are respectively arranged on the two separators and are arranged towards the center of the combustion chamber; the ammonia gas-air channel is arranged on the ejector mounting seat; the two first windows are symmetrically arranged on the two side faces, adjacent to the partition piece, of the combustion chamber. The second window is arranged on the bottom surface of the combustion chamber; the optical system is installed on the experiment bench, and the optical system and the constant volume combustion bomb form an optical path position required by a schlieren method and a direct shooting method; and the control system is electrically connected with the hydrogen ejector, the spark plug and the optical system.

The utility model discloses an electric field combustion-supporting jet ignition device and an ammonia fuel engine, and relates to the technical field of internal combustion engines, the electric field combustion-supporting jet ignition device comprises a jet device, an auxiliary electrode, a spark plug and an ammonia sprayer, the jet device comprises a jet device main body and a jet nozzle, and the jet device main body is connected with the jet nozzle to form a pre-combustion chamber; the pre-combustion chamber is communicated with the main combustion chamber; the auxiliary electrode comprises a pre-combustion chamber auxiliary electrode and a main combustion chamber auxiliary electrode, the auxiliary electrode is connected with the control unit through an electrical circuit, and an electric field is formed in the pre-combustion chamber and the main combustion chamber; the spark plug is electrically connected with the control unit through an electrical circuit; and the ammonia spraying device is used for spraying ammonia gas into the pre-combustion chamber through a nozzle outlet of the ammonia spraying device, the ammonia gas is fully mixed with air in the pre-combustion chamber, the mixed gas is ignited at an ignition electrode of the spark plug under the action of an electric field, and the ammonia mixed gas in the main combustion chamber is ignited. Electric field combustion supporting is applied to the jet ignition device, and the combustion reaction rate and the flame propagation speed are increased.

The invention relates to the technical field of engine starting, and provides a cold start auxiliary system of a methanol engine, a control method of the cold start auxiliary system and related equipment. The cold start auxiliary system of the methanol engine comprises an air inlet heater which is assembled on the inner wall of an air inlet pipeline of the methanol engine and used for heating air in the air inlet pipeline; the spark plug heater is assembled on the outer wall of a spark plug of the methanol engine and used for heating the spark plug; the nozzle heater is assembled on the outer wall of a nozzle of the methanol engine and used for heating methanol fuel flowing through the nozzle; the air inlet temperature sensor is assembled on the inner wall of an air inlet pipeline of the methanol engine and is used for detecting the temperature of air in the air inlet pipeline; the control unit is in communication connection with the air inlet heater, the spark plug heater, the nozzle heater and the air inlet temperature sensor and used for controlling the air inlet heater, the spark plug heater and the nozzle heater according to the temperature of cooling liquid of the methanol engine.

The invention discloses a platinum-iridium series electric contact material, and belongs to the technical field of platinum-iridium series electric contact materials. According to the platinum-iridium alloy, alloy elements of Nb, Ru and Re are added into the platinum-iridium alloy, expensive precious metal raw materials of Pt and Ir can be saved, a platinum-iridium alloy ingot blank is prepared through the high-flux electric arc melting technology, and then the platinum-iridium alloy ingot blank is subjected to the machining processes of rolling, drawing, heat treatment and the like to finally form finished products of sheets, wires and the like. The prepared platinum-iridium electric contact material has the characteristics of high melting point, high density, high hardness, wear resistance, high resistivity, stable contact resistance, fusion welding resistance, arc ablation resistance and the like, and can be applied to materials of components such as igniters, spark plugs, relay contacts, transmitting tube filaments and the like.

The utility model provides a gas burning torch which comprises a torch base unit, an outer pipe, an air delivery pipe, a spark plug, a flame monitoring device and a fire observation mirror, the air delivery pipe is located on the inner side of the outer pipe, a gas channel is arranged between the outer pipe and the air delivery pipe, and on the cross section, the air delivery pipe and the outer pipe are eccentrically arranged. The ignition gun is opposite to a conventional ignition gun gas circuit design thought, air is input from the middle, and gas is conveyed by surrounding the air conveying pipe. A flame monitoring device at the rear end of the ignition gun obtains a good flame signal through an air conveying pipe with a relatively large sectional area in the middle, and reliable detection of flames is achieved. The air conveying pipe is eccentrically arranged in the outer pipe, and sufficient space is provided for reliable installation of the spark plug in a compact structure. And meanwhile, a pre-mixing flame stabilizing structure is designed at the front end of the ignition gun, so that ignition and main fire can be stably established, and the ignition success rate is ensured.

The purpose of the present invention is to provide a spark plug (10) configured so that a gasket (24) will not catch on a threaded part (16). This spark plug comprises: a main metal fitting (15) disposed on the outer periphery of an insulator (11) and extending along a center line (C) from the distal end to the proximal end; and a gasket positioned on the outer periphery of the main metal fitting. The main metal fitting includes: a threaded part (16) composed of a male thread centered on a center line; a head part (18) including a seat surface (17) provided toward the proximal end of the threaded part; and a neck part (19) disposed between the head part and the screw part. The neck part includes a flange part (20) protruding radially outward. The gasket is positioned between the head part and the flange part. An outer diameter (D3) of the flange part is lesser than an outer diameter (D2) of the threaded part, but larger than the minimum value of an inner diameter (D6) of the gasket.

An electronic garage shelf is described. The system includes an electronic garage shelf which may be a metaphor for a shelf in a garage that is used to store parts for a vehicle. Merely for example, the electronic garage shelf may store a token part that signifies a part or smart component such as an oil filter, carburetor, spark plug, on a garage shelf in the user's garage. Further, the metaphor for a shelf in the garage may be expanded to include a virtual part that represents a part or smart component the user wants to acquire. Accordingly, the system may include garage shelf information comprised of virtual part information and token part information where the virtual part information may store virtual parts signifying parts that are desirable for acquisition and the token part information may store token parts signifying parts that are in the possession of the user.

Spark plug (1) for a hydrogen-powered internal combustion engine with a longitudinal axis X, comprising • a housing (2), • an insulator (3) arranged within the housing (2) • a central electrode (4) arranged within the insulator (3), • a ground electrode (5), • an ignition gap formed between the ground electrode (5) and the center electrode (4) within the housing, the housing having two opposite bores in which the ground electrode is arranged.

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

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

The invention relates to the field of vehicle control, in particular to a spark plug cleaning method and device, electronic equipment and a vehicle. The method comprises the steps that the current rotating speed and the current load of an engine are obtained; determining the current head temperature of the spark plug according to the current rotating speed and the current load; carbon deposition accumulated data are determined based on the current head temperature, and the carbon deposition condition of the spark plug is judged according to the carbon deposition accumulated data; determining a target rotating speed and a target load of the engine corresponding to the carbon deposition condition; and controlling the engine to operate according to the target rotating speed and the target load to clean deposited carbon. The carbon deposition determining and cleaning process can be achieved without arranging corresponding sensors in the engine for detection, and the method can be suitable for various types of engines and is wide in application range.

The invention provides a pure ammonia engine system and a control method thereof. The pure ammonia engine system comprises a cylinder block; the air cylinder cover covers the air cylinder body, and a combustion chamber is formed between the air cylinder cover and the air cylinder body; the glow plug comprises a heating body which extends into the combustion chamber from the center of the cylinder cover; the controller is configured to regulate and control the temperature of the hot surface of the heating body based on the operation condition of the pure ammonia engine system; the liquid ammonia ejector is inserted into the combustion chamber from the cylinder cover and is positioned on one side of the glow plug; the spark plug is inserted into the combustion chamber from the cylinder cover and is positioned on the other side, radially opposite to the liquid ammonia ejector, of the glow plug; a plurality of spraying hole sets are formed in the side, facing the heating body, of the end, extending into the combustion chamber, of the liquid ammonia ejector, so that part of liquid ammonia mist sprayed out of the liquid ammonia ejector is filled around the heating body to be ignited by a sparking plug.

The present invention relates to the field of metal recovery, and discloses a method for recovering and separating nickel, platinum and iridium from scrapped spark plug electrodes. First, the scrapped spark plug electrodes are melt-cast into Ni-Pt-Ir alloy anode plates, and then electrolyzed to obtain cathode nickel and platinum-iridium anode mud; then aqua regia is used to dissolve the impurity metals and Pt in the platinum-iridium anode mud, and Ir powder and chloroplatinic acid solution are obtained by filtration; then ammonium chloride is added to the chloroplatinic acid solution, and ammonium chloroplatinate powder is obtained by precipitation and filtration; finally, ammonium chloroplatinate is calcined to obtain Pt powder. The present invention realizes efficient recovery and separation of Ni, Pt and Ir from scrapped spark plug electrodes, and has the advantages of short process, low material consumption, high metal recovery rate, high product purity, and easy industrialization, with Ni purity ≥99.0wt%, Pt and Ir purity ≥99.5wt%, and total metal recovery rate ≥98.0%.

The invention relates to the technical field of engines, and discloses a rotor engine without an intake and exhaust overlapping angle, which comprises a cylinder body, two sides of the cylinder body are respectively provided with an end cover I and an end cover II, the inner wall of the cylinder body and two corresponding side surfaces of the end cover I and the end cover II form a combustion chamber, and an eccentric shaft is arranged on the end cover I and the end cover II in a penetrating manner; the surface, located in the combustion chamber, of the eccentric shaft is sleeved with a center gear, a rotor is arranged in the combustion chamber, the inner wall of the rotor is connected with an inner ring gear, and the inner ring gear is meshed with the center gear. The gas inlet and the gas outlet are respectively arranged on the cylinder body and the end cover, and are matched with alternate opening and closing of the door structure, so that a gas inlet and gas outlet overlapping angle is thoroughly eliminated, residual waste gas is prevented from flowing back to the gas inlet, sufficient gas inlet is ensured, sufficient mixed gas supply is combined with efficient ignition of a spark plug, the combustion efficiency can be improved, and fuel oil waste caused by insufficient combustion is reduced; and the power output of the engine is enhanced.

To provide an air-cooled engine with improved cooling efficiency. [Solution] An engine 10 has an engine block 11, valve mounting holes 21, spark plug mounting holes 23, and an air hole 30. A cylinder bore 12 is defined inside the engine block 11. The valve mounting holes 21 are connected to a side surface of the cylinder bore 12, and a valve 25 is disposed therein. The spark plug mounting holes 23 are connected to a side surface of the cylinder bore 12, and a spark plug 22 is disposed therein. The air hole 30 passes through the engine block 11 near the valve mounting holes 21 or the spark plug mounting holes 23.

The invention provides a concentric circle rotor type internal combustion engine and a design method thereof. One or more air cylinders are arranged on the peripheral side of the rotor shell, a main 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 is used for introducing compressed air into the air cylinder; the fuel cylinder is arranged on the rotor shell and communicates with the transition air channel, and an auxiliary fuel injector is arranged in the fuel cylinder; the transition valve is arranged on the side, close to the air cylinder, of the communicating portion of the transition air channel and the rotor shell. When the transition valve is closed, the combustion chamber is divided into an ignition cylinder and a main combustion space, fuel is constantly supplied in the ignition cylinder according to theoretical mixed gas, fuel is supplied in the main combustion space according to lean mixed gas, and the fuel quantity changes along with working conditions. Various fuels can be used, ignition is stable, the multi-rotor type can achieve torque superposition, the anti-overturning performance is improved, and high power and low oil consumption are achieved under the condition that the height is not increased and the rotating speed of an original single rotor is not changed.

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.