82results about "Ignition safety means" 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.

The invention discloses a cam shaft box, an engine and a vehicle, the cam shaft box comprises an ignition coil mounting hole, the ignition coil mounting hole is used for mounting an ignition coil, the ignition coil mounting hole comprises a sealing section, and the ignition coil is matched with the inner wall of the sealing section; and the exhaust hole is formed in the side wall of the ignition coil mounting hole and located in the lower side of the sealing section, and the ignition coil mounting hole is communicated with the outside through the exhaust hole. The exhaust hole is formed in the lower side of the sealing section, exhaust does not need to pass through the sealing section, and exhaust is smoother.

The invention provides a motorcycle ignition auxiliary system which comprises a high-energy ignition module, an intelligent ignition time control module, a high-reliability electronic element module, a strong anti-interference module, an intelligent integration and communication module, a compatibility adaptation module and a fault diagnosis and early warning module. Through close cooperative work of all the modules, the ignition performance and reliability are remarkably improved, the ignition time and energy can be accurately controlled, the system adapts to various working conditions and environments, the anti-interference capacity is enhanced, intelligent data interaction and decision making are achieved, all kinds of added equipment are effectively compatible, faults are accurately diagnosed and early warned, and remote maintenance is supported; the power performance, the economical efficiency, the stability, the intelligent level, the use convenience and the safety of the motorcycle are greatly improved, a solid guarantee is provided for high-performance operation and personalized modification of the motorcycle, the technological development of modern motorcycles and multiple requirements of users are met, and the technological progress and the product upgrading of the motorcycle industry are powerfully promoted.

A usage management system includes a use rights management server and a user terminal. A controller of a vessel propulsion apparatus operates a prime mover in a permission mode to permit an output exceeding a predetermined limit output if use permission is provided from the user terminal, and operates the prime mover in a non-permission mode to prohibit an output exceeding the predetermined limit output if use permission is not provided from the user terminal. The user terminal enters an active state to allow issuance of use permission if a use-permission notification is received from the use rights management server, and enters a non-active state to prohibit issuance of use permission if a use-permission notification is not received from the use rights management server. The use rights management server transmits a use-permission notification or a use-non-permission notification in accordance with use rights information concerning the vessel propulsion apparatus.

An ignition resumption control unit (40) is disposed that resumes control of an ignition plug (14) if a first predetermined time has elapsed or if engine rotation number has fallen below a threshold value, after receiving an engine stop signal. The ignition resumption control unit (40) executes the control of the ignition plug (14), based on resumption ignition timings (Tg(R-on)) that are timing deviating from an entire ignition timing range set in a normal working area of an engine body (2).

To provide a technique which can prevent an electric discharge in an ignition plug at an unexpected timing.SOLUTION: An ignition device 1 for an internal combustion engine using a fuel containing hydrogen has an ignition coil 103 including a primary coil L1 and a secondary coil L2, a power supply device 102, a switching element 70, an ignition plug 113, and a limiting diode 114. The switching element 70 make a switch to carrying or interrupting a primary current flowing to the primary coil L1. The ignition plug 113 discharges electric at a gap d on the basis of a high voltage inducted at one end 822 of the secondary coil L2. The limiting diode 114 is a zener diode or an avalanche diode having a forward direction from the one end 822 of the secondary coil L2 to the other end 821. A breakdown voltage of the limiting diode 114 is larger than a maximum value of a voltage in ON, which is calculated by multiplying a direct current voltage value applied to one end 811 of the primary coil L1 by a ratio of a winding number of the secondary coil L2 to a winding number of the primary coil L1.SELECTED DRAWING: Figure 1

The invention relates to a method for detecting replacement of a component of an ignition system of a spark-ignition internal combustion engine. The method comprises the steps of determining at least one parameter indicative of the operation or condition of the ignition system; and detecting replacement of the component based on a comparison of the parameter with at least one reference value.

A high-pressure sheath special for a natural gas engine of a commercial vehicle comprises a high-pressure connecting rod made of plastic materials, a high-pressure sheath body made of Teflon materials and a cylinder head cover sealing cover made of silicone rubber materials, the high-pressure sheath body is connected to the lower end of the high-pressure connecting rod in a sleeved mode, and the cylinder head cover sealing cover is connected to the upper end of the high-pressure connecting rod in a sleeved mode. A high-pressure spring is installed in the high-pressure connecting rod and the high-pressure sheath in the longitudinal direction, the top end of the high-pressure spring is fixed to the upper end of the high-pressure connecting rod through a high-pressure connecting bolt, and a sheath sealing ring is installed in the high-pressure sheath and surrounds the periphery of the lower end of the high-pressure spring. The cylinder head cover sealing cover is provided with a labyrinth type exhaust path so that ionized gas in the spark plug well can be exhausted under the sealed condition. The spark plug effectively reduces product surface corrosion caused by corona discharge, adopts a labyrinth exhaust route, ensures that ozone in a spark plug well can be smoothly discharged, can ensure relative sealing performance, prevents external moisture from immersing, and prevents corrosion insulation.

The utility model relates to an engine with a plurality of ignition devices and a motorcycle with the engine. The engine with the plurality of ignition devices comprises a cylinder, a cylinder head assembly, a first spark plug and a cylinder head cover. The cylinder head assembly comprises a cylinder head, an air inlet rocker arm, an air exhaust rocker arm, an air inlet valve, an air exhaust valve and a cam shaft, the air inlet rocker arm, the air exhaust rocker arm, the air inlet valve, the air exhaust valve and the cam shaft are contained in the cylinder head, the cylinder head is provided with a combination seat face, a combustion chamber, an outer wall portion and a chain chamber, and the outer wall portion is provided with a first installation hole penetrating from the cylinder head to the combustion chamber. The first spark plug is installed in the first installation hole, and the cylinder head cover is locked and attached to the combination seat face. The cylinder head further comprises a second installation hole penetrating from the cylinder head to the combustion chamber and a sleeve communicated with the second installation hole, the second installation hole is located between the air inlet valve and the chain chamber or located between the exhaust valve and the chain chamber, the cylinder head cover further comprises a through hole, and a first end of the sleeve penetrates through the through hole. A second end of the sleeve is assembled on the cylinder head, the engine further comprises a second spark plug, and the second spark plug is assembled in the sleeve and installed in the second installation hole.

The utility model relates to the field of diesel engines, in particular to a spark plug sheath structure for a fuel injector of a high-horsepower diesel engine, which comprises a top and a bottom, a mounting hole is arranged on the upper portion and is a stepped hole, a fuel injector mounting hole is arranged on the lower portion, and the fuel injector mounting hole is communicated with the stepped hole. The top of the spark plug sheath mechanism is divided into an upper portion and a lower portion through a stepped hole, a plurality of wrench installation clamping holes are formed in the step position of the stepped hole and evenly distributed around the annular step of the stepped hole, the size of the wrench installation clamping holes is matched with the size of the working end of a torque wrench, and a sheath bottom installation groove is formed in the air cylinder cover. The spark plug sheath mechanism is mounted in the mounting groove at the bottom of the sheath, so that the problems of cracking of the cylinder cover due to incapability of bearing high temperature, particularly high failure rate and weak reliability of a nose bridge area of the cylinder cover with high temperature and large temperature difference, and cracking of the nose bridge area of the cylinder cover of a diesel engine at the present stage are solved.

The application provides an over-temperature protection device of an igniter control module, comprising a control unit, a voltage stabilizing filter unit connected to a positive voltage input end of the control unit and configured to provide a power supply voltage for the control unit, a first series voltage dividing unit connected to a same-phase input end of the control unit and configured to provide a reference voltage for the control unit, and a second series voltage dividing unit connected to an inverse-phase input end of the control unit and configured to monitor the temperature of an IGBT power tube and convert the temperature into a monitoring voltage; wherein an output end of the control unit is connected to a gate of the IGBT power tube, and the control unit compares the monitoring voltage with the reference voltage and outputs a control signal for controlling the IGBT. The over-temperature protection device of the igniter control module can effectively control the overall temperature of the igniter control module, and can improve the heating condition of the igniter.

The invention relates to a method for managing misfires (1) in a hydrogen internal combustion engine for a motor vehicle, the hydrogen internal combustion engine having at least one cylinder, the method comprising a preliminary step (10) of detecting a misfire in the cylinder, followed by additional steps of: Incrementing (40) a misfire counter associated with the cylinder; Evaluating (42) a hydrogen concentration value at the exhaust from the previously incremented misfire counter; If the hydrogen concentration value is greater than a predetermined threshold value, then the method triggers (44) a cut-off of the injection within the cylinder concerned. Figure 1

A standby generator includes an alternator to produce electricity for distribution to an electrical system, and an air-cooled internal combustion engine driving the alternator. The air-cooled internal combustion engine includes one or more cylinders, one or more spark plugs each configured to initiate combustion in a corresponding cylinder, and one or more ignition coils each coupled to a respective spark plug of the one or more spark plugs to provide a voltage to the respective spark plug. The standby generator also includes a battery system electrically coupled to the one or more ignition coils to provide power thereto, and a digital ignition module wiring the battery system to each of the one or more ignition coils to control operation of the one or more spark plugs.

The utility model relates to an ignition coil control module with monitoring and fault feedback functions, which comprises a power supply circuit, a logic circuit, a feedback circuit, a data processing circuit and a sampling circuit, the power supply circuit respectively supplies power to the logic circuit, the data processing circuit and a primary loop of an ignition coil, an ignition signal pin EST is electrically connected with the logic circuit, and the sampling circuit is electrically connected with the data processing circuit. The output end of the logic circuit controls on-off of a primary loop of an ignition coil through an IGBT Q1, the sampling circuit is connected in series in the primary loop of the ignition coil, the two ends of the sampling circuit are electrically connected with the input end of the data processing module respectively, the output end of the data processing circuit is electrically connected with the feedback circuit, and the feedback circuit is electrically connected with an ignition signal pin EST. The utility model has the advantages that when the current is abnormal, the current of the EST is jumped through the feedback circuit, so that the ECU can analyze the state of the primary loop of the coil and further determine whether a fault exists or not.

The invention discloses a pre-combustion chamber spark plug ignition system and method and related devices, and relates to the field of engines, and the system comprises a spark plug, a spark plug bushing, an air outlet electric control valve, an air inlet electric control valve, a pre-combustion chamber and an engine controller. When condensate water is formed on the spark plug electrode, the air inlet electric control valve is controlled to be opened, the air outlet electric control valve is controlled to be closed, air in the main combustion chamber enters an air cavity of the spark plug lining, when the air in the spark plug lining reaches the air pressure peak value, the air inlet electric control valve is closed, and the air pressure peak value of the air in the spark plug lining is kept unchanged. And when the piston moving part reaches an acting lower dead center, the air outlet electric control valve is controlled to be opened, so that air in the air cavity of the spark plug bushing is blown to the spark plug electrode to purge condensed water. According to the application, the gas in the main combustion chamber flows into the gas cavity of the spark plug bushing, and the gas in the gas cavity of the spark plug bushing is utilized to purge the condensed water on the spark plug electrode, so that the spark plug electrode is recovered to be dry, and the starting of the engine is realized.

A method of operating an internal combustion engine that includes injecting fuel into a combustion chamber to form an air-fuel mixture, where the combustion chamber includes a cylinder head, cylinder sidewalls, and a piston that reciprocates within the cylinder sidewalls is disclosed, wherein the method detects pre-ignition of the air-fuel mixture during a detected intake or compression stroke of the piston, determines that a super knock condition could occur, and mitigates formation of a super knock condition by deploying a super knock countermeasure within the detected compression stroke.

This application can carefully perform maintenance of the engine and the work machine with appropriate evaluation indicators, grasp the operating states of the engine and the work machine respectively, and provide appropriate services to each user on the basis of understanding the operating characteristics of the user. The ignition coil assembly includes: an ignition circuit having a primary coil and a secondary coil; a power generation unit having a power generation coil; a control unit that controls the ignition timing of the ignition circuit according to an input signal generated by the induced voltage of the power generation coil; a sensor that inputs load information to the control unit, and the control unit includes a memory that stores the operating time information corresponding to the operating information and the load information based on the input signal as matrix data composed of operating information, load information, and time data.

A usage management system for vessel propulsion apparatuses includes a use rights management server and a user terminal device. A controller of a vessel propulsion apparatus operates a prime mover in a permission mode to permit an output exceeding a predetermined limit output if use permission is provided from the user terminal device, and operates the prime mover in a non-permission mode to prohibit an output exceeding the predetermined limit output if use permission is not provided from the user terminal device. The user terminal device enters an active state to allow issuance of use permission if a use-permission notification is received from the use rights management server, and enters a non-active state to prohibit issuance of use permission if a use-permission notification is not received from the use rights management server. The use rights management server refers to use rights information concerning the vessel propulsion apparatus, and transmits a use-permission notification or a use-non-permission notification in accordance with use rights information.

The application is suitable for the technical field of vehicle control, and provides a control method and device of an engine in a vehicle, a storage medium and the vehicle.The method comprises the following steps: monitoring the ignition voltage of the engine in the vehicle, and controlling the engine differently according to the size of the ignition voltage; compared with the prior method of directly starting the engine after receiving a starting instruction, the application sets different control strategies for the engine, and determines the control strategy to be used according to the ignition voltage, that is, determines the corresponding control strategy according to the current working condition of the vehicle, so that the control of the engine is more in line with the current working condition, the intelligence of the engine control is improved, and the vehicle failure caused by the engine is naturally reduced.

To provide a technique which can prevent an electric discharge in an ignition plug at an abnormal timing.SOLUTION: An ignition device 1 for an internal combustion engine using a fuel containing hydrogen has an ignition coil 103 including a primary coil L1 and a secondary coil L2, a power supply device 102, a switching element 70, an ignition plug 113, a first backflow prevention diode 111, and a first resistance 112. The switching element 70 make a switch to carrying or interrupting a primary current flowing to the primary coil L1. The ignition plug 113 discharges electric on the basis of a high voltage inducted at one end 822 of the secondary coil L2. Between the other end 821 of the secondary coil L2 and the power supply device 102, two first connection lines 122a, 122b are arranged in parallel. The first backflow prevention diode 111 is inserted in the first connection line 122a, and has a forward direction from the one end 822 of the secondary coil L2 to the other end 821. The first resistance 112 is inserted in the first connection line 122b, and has a resistance value of 1 MΩ or more.SELECTED DRAWING: Figure 1

The present disclosure provides "systems and methods for preventing spark plug fouling in a variable displacement engine". Methods and systems are provided for reducing fouling of spark plugs in cylinders of a variable displacement engine configured to propel a vehicle. In one example, a method includes: in response to deactivation of one or more cylinders of the engine, providing a spark to the one or more cylinders at predefined positions respectively on one or more pistons coupled to the one or more cylinders, wherein the predefined positions include the one or more pistons being within a bottom dead center position threshold. In this way, spark plug fouling can be reduced or eliminated during cylinder deactivation conditions.

The utility model discloses a flip type ignition device, and particularly relates to the technical field of ignition devices, the flip type ignition device comprises an ignition device main body, a protection assembly is arranged on the ignition device main body, the protection assembly comprises a protection cylinder arranged at the top of the ignition device main body and used for protection, and a protection cover used for protection is arranged at the top of the protection cylinder. The protection assembly is arranged, the protection cover can rotate along the axis point of the connecting position of the protection cover and the protection cylinder, so that the function of protecting all structures on the installation plate is achieved, the situation that fuel is ignited by sparks caused by careless touch is prevented, accidental fire is effectively avoided, and the safety is improved; the second ignition coil increases voltage to be high enough voltage, high-voltage current is distributed to the limiting cover through the distributor, the additional resistor and the short-circuit device are arranged to adjust energy of the limiting cover, and meanwhile the ignition wire and other circuits are protected against damage.

The present invention provides an engine ignition circuit, a vehicle and an ignition control method. The engine ignition circuit provided by the present invention comprises: at least two groups of ignition coils, which are arranged in the target cylinder; an ignition control circuit, which is connected to the at least two groups of ignition coils, and is used to provide the same ignition control signal to the at least two groups of ignition coils at the same time. The technical solution of the embodiment of the present invention controls the signal input through a single-channel ignition control circuit, and controls the two-channel output at the same time to control the corresponding two groups of ignition coils to work at the same time, so that there are two ignition points during ignition, which ensures the ignition success rate, and can also make the fuel burn faster and more fully, the engine more powerful, and reduce emission pollution.

The application provides a kind of carburetor type aviation piston engine ignition method: S1, obtains sensor signal A and sensor signal B;S2, according to sensor signal A and sensor signal B and preset calculation rule respectively calculates the ignition pulse width and ignition advance angle of ignition controller A and ignition controller B;S3, ignition controller A and ignition controller B are ignited according to the calculated ignition pulse width and ignition advance angle, and the output of detection is ignited.The application provides a kind of carburetor type aviation piston engine ignition method, and the output voltage value, current value and duration of real-time acquisition are compared with preset value, so as to effectively judge the various faults of ignition output, and protect the ignition driving device of ignition controller.The application compensates the state of missing firepower caused by the failure of ignition controller A by the data interaction of ignition controller A and ignition controller B and the adjusted ignition controller B.

An engine ignition system can include a multifunction controller, and an exciter operatively connected to the multifunction controller. The multifunction controller can be configured to control the exciter to output an ignition voltage. The multifunction controller can be configured to perform at least one other engine control function.

An engine ignition system (100) can include a multifunction controller (101), and an exciter (103) operatively connected to the multifunction controller (101). The multifunction controller (101) can be configured to control the exciter (103) to output an ignition voltage. The multifunction controller (101) can be configured to perform at least one other engine control function.

The invention relates to a wireless lanyard system (10) for a marine vessel (14) propelled by at least one propulsion device (11). The system comprises: i) an operator fob (20) worn by an operator of the marine vessel (14); ii) a helm transceiver (18) at a helm area (15) of the marine vessel (14) configured to receive radio signals from the operator fob (20); iii) a lanyard control module (49) executable on a processor (46) and configured to: a) adjust a radius (R, R1..R4) of the permitted zone (Z, Z1..Z4) based on at least one of the engine rpm or a vessel speed, wherein the radius (R, R1..R4) decreases as the engine rpm increases or the vessel speed increases, or based on an GPS location of the marine vessel (14) that the lanyard control module (49) receives; b) determine based on communications between the operator fob (20) and the helm transceiver (18) whether the operator is within a permitted zone (Z, Z1..Z4) with respect to the helm area (15); c) generate a lanyard event when the operator is not within the permitted zone (Z, Z1..Z4). The system (10) is further configured such that, upon generation of the lanyard event, the propulsion device (11) is controlled to reduce an engine rpm of an engine (60) in the propulsion device (11) to an idle rpm and / or to turn off the propulsion device (11).

The invention provides an ignition gap adjusting device and an ignition gap adjusting method. Remote control equipment automatically controls a motor to act according to an ignition gap detected by a displacement sensor to achieve automatic and efficient adjustment of the ignition gap. A worker checks an image, transmitted by an image acquisition component, of a scale position of a scale indicated by a scale indication component on remote control equipment, so that the ignition gap is intuitively determined; the remote control device controls the motor to act according to an adjusting instruction input by a worker to achieve remote readjustment and calibration of the ignition gap, and therefore the ignition gap can be accurately adjusted to a target value. The displacement sensor, the image acquisition component and the electrode are far away and are powered by the battery, so that the conditions of displacement sensor failure or inaccurate detection, motor false start or overvoltage damage and the like caused by strong electromagnetic interference and high-voltage invasion are not easy to occur, and the device is suitable for scenes with high environmental potential, large potential fluctuation and strong electromagnetic interference.