An integrated high-energy ignition system for an engine

Abstract

The invention discloses an integrated high-energy ignition system used for an engine. The integrated high-energy ignition system can be applied to a piston engine as well as a turbo-jet, and mainly comprises an input socket, a drive circuit, an ignition power switching element, an ignition transformer, a boost switching circuit and an output socket. The components are integrated on a PCB. The input socket is connected with an external power supply and control signals. The drive circuit, the ignition power switching element and the ignition transformer are connected. An ignition transformer magnetic circuit adopts initial reversing magnetic field biasing. An ignition transformer secondary coil and high voltage output are integrally formed, and the output is directly connected with a parkingplug, so that ignition output is achieved. According to the ignition system provided by the invention, primary charging current can be increased, and ignition energy is increased; the ignition powerswitching element breakdown clamp voltage is increased, and the discharging delay time is shortened; and boost conversion lifts up the charging voltage, the charging time is shortened, the ignition cycle time is shortened, the ignition time of duration is long, the combustion performance of the engine is remarkably improved, and performance indexes of the engine are increased.

Description

technical field [0001] The invention belongs to the related technical field of engine ignition systems, and in particular relates to an ignition coil and a drive circuit thereof, an integrated high-energy ignition system that can be used in both piston engine ignition systems and turbojet engine ignition systems. Background technique [0002] The engine ignition system directly determines the starting and performance indicators of the engine, and belongs to the core component of the engine. The current engine ignition system mainly includes two methods, one is capacitor discharge ignition, and the other is inductive discharge ignition. Among them, the advantage of the capacitor discharge ignition system is that the secondary discharge current rises quickly, the discharge delay time is short, and it can quickly break down and discharge even if the spark plug is dirty. It is especially suitable for use in engines that require good starting performance, such as high-speed small...

AI Technical Summary

Problems solved by technology

The disadvantage of the capacitor discharge ignition system is that the discharge duration is short, which is not conducive to the improvement of engine combustion performance, the emission performance is poor, and it cannot better meet the current emission regulations

The inductive discharge ignition system is basically the opposite of the capacitor discharge ignition system. The secondary discharge current rises slowly and the discharge delay time is long, but the discharge lasts for a long time, which is very beneficial to improving engine combustion.

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