722 results about "Spark plug" patented technology

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.

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.

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.

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 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 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.

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 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.

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 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.

SOLUTION: A spark plug (1) having a longitudinal axis X, comprising: a housing (2) having a longitudinal bore parallel to the longitudinal axis X of the spark plug (1), whereby the housing (2) has a housing wall (20) and an internal space (21); an insulator (3) disposed inside the housing (2); a center electrode (4) disposed inside the insulator (3); and an overall length L MaEI and D MaEI a ground electrode (5) having a diameter of D Bohr The hole (50) in the housing wall (20) has a diameter of 1.5 mm, and the ground electrode (5) has a length L Bohr The ground electrode (5) is disposed in the hole (50) with a length L em The housing wall (20) projects from the inner surface (20a) of the housing wall (20) into the interior space (21) of the housing (2) with a thickness D Wall and a spark gap (45) formed between the ground electrode (5) and the center electrode (4), and a length L of the ground electrode (5) in the hole (50). Bohr The total length L of the ground electrode (5) MaEI is greater than or equal to 1.8 and less than or equal to 2.2, and / or the thickness L of the housing wall (20) Wall The length L of the ground electrode (5) projecting into the internal space (21) of the housing (2) relative to the em The ratio is greater than or equal to 0.2 and less than or equal to 3, and the length or thickness extends perpendicular to the major axis X of the spark plug (1).

To provide a spark plug that can extend time until a fusion part is exposed.SOLUTION: In a cross section of an electrode including an axial line and a center of gravity of a discharge surface of a chip in a spark plug, when the length in a direction orthogonal to the axial line of the discharge surface is D, the length of a line obtained by cutting the axial line by a border of the chip is L1, the length of a line whose distance from the axial line is D / 4 and that is obtained by cutting a first line parallel to the axial line by the border of the chip is L2, and the length of a line whose distance from the axial line is 3D / 8 and that is obtained by cutting a second line parallel to the axial line by the border of the chip is L3, the relation of L1<L2<L3 is satisfied.SELECTED DRAWING: Figure 2

The present application relates to a kind of fuel power device, the center wheel is connected by output shaft in the center through hole of shell, the circumference of center wheel is equipped with several power blocks;Several rotors are equipped on the outer periphery of center wheel, each rotor is matched with the independent space of shell by bearing seat, each rotor is linked with output shaft by transmission mechanism I;Several oblique tooth grooves are equipped on the rotor, power block passes from tooth groove when rotor is tangent with center wheel and runs, the shell corresponding to each rotor, power block and air inlet forms explosion chamber when power block passes from tooth groove, spark plug is provided at air inlet, so that explosion chamber is filled with a certain proportion of air and fuel gas and produces blasting, and power block is pushed;Several exhaust ports are provided on the surface of shell, and exhaust port is staggered with explosion chamber.This power device forms closed chamber by carousel transmission structure, and makes fuel mixture gas blast production power, so as to realize the production of power source.

The application discloses a device and method for adjusting the radial installation angle of the jet hole of a precombustion chamber spark plug, which comprises a sleeve, a sleeve extension rod and a torque wrench, the sleeve extension rod is connected with the sleeve, the torque wrench is arranged on the upper portion of the sleeve extension rod, the sleeve is an outer hexagonal sleeve, and the device further comprises an angle pointer and an angle scale dial, the angle scale dial is fixed on a cylinder head, and the angle pointer is buckled on the sleeve extension rod and located above the angle scale dial. The device increases the angle pointer and the angle scale dial on the basis of the sleeve extension rod and the torque wrench, can adjust the jet hole angle of the precombustion chamber spark plug, and makes the jet hole of the precombustion chamber spark plug be at an angle more favorable to the combustion in the cylinder.

The utility model relates to the technical field of spark plug detection, in particular to a spark plug detection device which comprises a base, a detection frame is fixedly connected to the right side of the top of the base, a transmission case is fixedly connected to the right side of the detection frame, and a visual camera is fixedly connected to the top of the detection frame. A limiting seat is fixedly connected to the middle of the top of the base, a connecting seat is arranged on the left side of the limiting seat, a control table is fixedly connected to the middle of the front side of the base, an inserting mechanism is arranged on the left side of the base, and a position correcting mechanism is arranged in the transmission box. According to the utility model, plug-in power supply and rotation correction of the spark plug are realized, and the convenience and high efficiency of the device are improved.

The invention discloses a staged cracking ammonia internal combustion engine system which comprises an ammonia supply system, a first-stage catalytic cracker and a combustion chamber, the combustion chamber is connected with an air inlet channel and an exhaust channel, and a spark plug is installed on the combustion chamber; the ammonia supply system is used for providing low-pressure gaseous ammonia, the ammonia supply system is connected with an inlet of the first-stage catalytic cracker, and an outlet of the first-stage catalytic cracker is connected with the gas inlet channel; the first-stage catalytic cracker is connected with the exhaust passage through an exhaust branch pipe, a low-temperature catalyst for catalyzing ammonia to be decomposed into hydrogen and nitrogen is arranged in the first-stage catalytic cracker, and the inner wall of the combustion chamber is coated with a second-stage ammonia catalyst coating. Staged ammonia cracking is carried out at low temperature and high temperature, a small amount of ammonia is decomposed by the first-stage catalytic cracker to generate hydrogen, the ignition energy of the ammonia can be remarkably reduced by the small amount of hydrogen, and the flame propagation speed of ammonia combustion is increased; the secondary cracking in the combustion chamber efficiently decomposes ammonia through a catalyst coating, so that the oxidation rate and the combustion efficiency of ammonia are improved, and the emission of unburned ammonia is reduced.

The invention relates to the field of mower control systems, and discloses a gasoline mower cutter soft start control system which comprises an engine, a spark plug, a cutter and an electromagnetic clutch coil which are arranged in a mower shell. The input signal acquisition module, the level conversion and shaping circuit, the single chip microcomputer and the power driving execution module are electrically connected with the spark plug. The single chip microcomputer comprises a rotating speed calculation unit and a core control unit, the rotating speed calculation unit is used for calculating the rotating speed of an engine according to digital pulses output by the level conversion and shaping circuit, and the core control unit selects a soft start control parameter set according to the rotating speed of the engine and outputs a multi-stage PWM control signal to the power driving execution module; the working current of the electromagnetic clutch coil is adjusted by the power driving execution module in stages, soft starting of the cutting knife from a static state to a working rotating speed is achieved, and mechanical impact and vibration in the starting process are reduced.

A spark plug (1, 201, 301, 401, 501, 601) comprising: a cylindrical insulator (10, 210, 410, 510) with an axially extending axial hole (20, 220, 520) and a rearwardly directed surface (22A) formed in the axial hole (20, 220, 520); a cylindrical metal casing (30, 330, 630) arranged on an outer periphery of the insulator (10, 210, 410, 510); and a central electrode (50) arranged at a front end in the axial hole (20, 220, 520), wherein the central electrode (50) has a large-diameter section (52) with an outer diameter that is the largest in the central electrode (50), the large-diameter section (52) being held at the rearward-facing surface (22A), and wherein the metal shell (30, 330, 630) has a diameter-enlarged section (36) at a rear end with respect to the central electrode (50),wherein the enlarged diameter section (36) has an inner diameter that is enlarged towards the rear end, wherein the insulator (10, 210, 410, 510) has a first section (70, 270, 470, 570) which is a section of the insulator (10, 210, 410, 510) in a region (AR) from a rear end of the rearward-facing surface (22A) to a front end of the enlarged diameter section (36), the first section (70, 270, 470, 570) having a thickness (X1) which is the greatest in the region (AR), and is arranged at least on an outer periphery of the large-diameter section (52), the insulator (10, 210, 410, 510) being connected to the metal shell (30, 330, 630) by a seal (45) is held at the front face with respect to the first section (70, 270, 470, 570) and the insulator (10, 210, 410, 510) has a second section (80, 280, 480, 580) at the rear end face with respect to the first section (70, 270, 470, 570) in the area (AR),wherein the second section (80, 280, 480, 580) has an outer diameter (B) that is smaller than an outer diameter (A) of the first section (70, 270, 470, 570), wherein the first section (70, 270, 470, 570) is arranged at least at an outer periphery of an entire region in the axial direction of a section of the central electrode (50) that is arranged in the region (AR).

To provide a cylinder heater capable of easily securing an installation place of an electrode for causing an electric current to flow in a cylinder liner.SOLUTION: A cylinder heater includes: an electric power conversion device that converts a DC electric current output from a DC power source into a high-frequency AC electric current; and a transformer having a primary side coil electrically connected to the electric power conversion device and a secondary side coil electrically connected to electrodes provided to correspond to one side and the other side of a cylinder liner, respectively in an axial direction of a cylinder of a cylinder block provided in an internal combustion engine. In the cylinder heater, the electrode on one side is electrically connected to a lower part of the cylinder block and the electrode on the other side is a grounding electrode of an ignition plug.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of fuel gas generators, and discloses a combustion chamber of a fuel gas generator. The gas generator combustion chamber comprises a combustion chamber front section and a combustion chamber rear section which are sequentially connected from front to back through a flange plate. A hydrogen spray hole and a spark plug are arranged at the front section of the combustion chamber, the spark plug ignites hydrogen, an oxidizing agent and fuel in main flow are ignited through hydrogen flames, and the hydrogen flow is controlled to be suitable for different ignition working conditions; two paths of body air are arranged at the rear section of the combustion chamber, and flame stability in the combustion chamber is achieved through flow matching of the two paths of body air; meanwhile, the ignition function of the igniter and the flame stabilizing function of the flame stabilizer are integrated on the combustion chamber of the fuel gas generator, the complexity of the fuel gas generator is reduced, the space size is reduced, and the fuel gas generator can be suitable for application scenes with the limited installation space size. The flow calculation method is simple and reliable and has engineering practical value.

A spark plug (38) includes: a spark plug housing (40); a cathode (62) including at least one electrode fork (64) and formed primarily of iridium; and an anode (72) formed at least predominantly of iron or steel. The material composition of the cathode and anode provides extended spark plug service life, especially in high power density applications employing pre-chamber spark plugs. Related methods are also disclosed.

The utility model belongs to the technical field of motorcycle engines, and relates to an air cylinder head structure of a motorcycle engine, which comprises an air cylinder head, a cam shaft is arranged at the top of the air cylinder head, a timing chain wheel is sleeved on the cam shaft, a combustion chamber is arranged below the cam shaft, and a decompression ejector rod for ejecting an exhaust valve open is arranged in the cam shaft in a sliding mode. A centrifugal mechanism for driving the decompression ejector rod to slide is arranged on the timing chain wheel, a first sparking plug and a second sparking plug which are inclined are arranged on the left side and the right side of the combustion chamber respectively, and the included angle between the second sparking plug and the bottom plane of the air cylinder head is smaller than that between the first sparking plug and the bottom plane of the air cylinder head. The air cylinder head is provided with an avoiding groove for avoiding the timing chain wheel and a sleeve base extending in the direction of the avoiding groove, and a sleeve for installing a second spark plug is arranged in the sleeve base. The cylinder head structure of the motorcycle engine is compact in layout, stable in structure and capable of achieving the purpose of further saving energy and reducing consumption.

The utility model relates to the technical field of motorcycle part machining, in particular to motorcycle cylinder head spark plug tapping equipment. Comprising a tapping machine body and a material receiving mechanism, and the material receiving mechanism comprises a belt conveyor, a material receiving barrel, an inclined guide plate, a first limiting block, a second limiting block, a positioning plate, a clamp table, a limiting plate, a receiving device and a limiting device. A spark plug is clamped and conveyed to a clamp of the clamp table through the feeding robot to be fixed, then a part can be subjected to tapping machining through the tapping machine body after being fixed, the part is taken through the feeding robot after tapping is completed, the workpiece is placed on a conveying belt of the belt conveyor, the workpiece is conveyed into the material receiving barrel through the belt conveyor, and the material receiving barrel is used for receiving the spark plug. And then the parts fall onto the inclined guide plate and slide into the receiving device to be automatically collected, feeding machining can be carried out during collection, and therefore the machining efficiency can be improved when motorcycle cylinder head sparking plug tapping machining is carried out.

The invention relates to the field of power engineering. The present internal combustion engine comprises a housing in which a drum and a rotor are rotatably disposed. The rotor comprises a hollow shaft and an impeller wheel. The axis of rotation of the rotor is upwardly offset from the axis of rotation of the drum, the latter providing for the formation of an annular liquid seal by means of a working fluid during rotation. The impeller wheel is configured to be capable of forming alternating combustion and compression chambers. The hollow shaft has a stator arranged coaxially therein such that the cavity between the shaft and the stator can be divided into a fuel mixture supply zone and coolant supply and discharge zones. Mounted in the combustion chambers are spark plugs, each of which comes into contact with a capsule which is spring-loaded by a high-voltage contact and is fastened in a vertical upward position to the cylindrical surface of a rod arranged inside the hollow stator such as to permit regulation of the ignition timing. The rotor and the stator are configured with channels, baffles, ports and a plate, which provide for the supply and discharge of coolant to and from an annular cavity. The technical result is an increase in the efficiency and service life of the engine.

The invention discloses an ignition control method, device and equipment for a dual-fuel engine and a storage medium. The ignition control method comprises the steps that the engine rotating speed and the engine torque are obtained; determining engine working conditions according to the engine speed or the engine torque; and controlling a spark plug and / or a dual-fuel injector to start according to the engine working condition, the engine rotating speed and the engine torque. According to the technical scheme, the engine rotating speed and the engine torque are obtained, the engine working conditions are determined according to the engine rotating speed or the engine torque, the spark plug and / or the dual-fuel injector are / is controlled to be started according to the different engine working conditions, and different ignition strategies are executed; flexible switching of different ignition modes of spark plug ignition and compression ignition is achieved, and the abnormal combustion problems of CO2 emission, early-burning explosion and the like of the dual-fuel engine are effectively solved.

A gasket (20) configured to be positioned between a spark plug and a cylinder head of an internal combustion engine when a threaded section of the spark plug is screwed to the cylinder head. The gasket includes an annular body (23) and projections (25). The annular body is arranged around a threaded relief section of the spark plug where no threads are formed near the threaded section. Each of the projections extends radially inward from the annular body.The annular body, the thread relief section and the threaded section are shaped such that they satisfy a relationship of φb mm ≤ φa mm ≤ φc mm - 0.9 mm, where φa is an inner diameter of a circle (S1) defined to extend along the inner surfaces of the projecting ends (26a) of the inclined sections and centered on an annular center point (Cp) of the annular body, φb is the outer diameter of the thread relief section and φc is the nominal thread diameter of the threaded section.