Parallel ignition system for natural gas engine

Abstract

The invention relates to the field of ignition systems, in particular to a parallel ignition system for a natural gas engine, wherein the parallel ignition system can adapt to different working conditions of the natural gas engine. The parallel ignition system comprises an ignition controller, a DC power source, a first ignition coil T1, a second ignition coil T2, a first high-voltage diode D5, a second high-voltage diode D6, a high-voltage ignition wire and a sparking plug. One end of each primary ignition coil of the two ignition coils is connected with the ignition controller and then connected to the positive electrode of the power source, and the other end of each primary ignition coil of the two ignition coils is connected mutually and then connected to the ground together with the negative electrode of the power source; one end of each secondary ignition coil of the two ignition coils is connected with the positive electrodes of the two high-voltage diodes. The parallel ignition system can not only control ignition characteristics in a flexible mode according to the different working conditions of the natural gas engine but also can optimize ignition energy consumption, and improve ignition conditions of different working conditions of the natural gas engine. Meanwhile, the parallel ignition system has the advantages that the structure of the system is simple, ignition is reliable, and an engine body does not need to be altered.

Description

technical field [0001] The invention relates to the field of ignition systems, in particular to a natural gas engine parallel ignition system capable of meeting the ignition requirements of different engine operating conditions. Background technique [0002] With the depletion of traditional fossil energy, natural gas, a resource-rich, efficient and clean oil substitute fuel, is gradually being valued by countries all over the world. However, when natural gas is used as the engine fuel, different types of natural gas engines and operating conditions have different requirements for the discharge characteristics of the ignition system: for example, the engine cold start condition, the temperature of the combustion chamber is low, high-energy ignition and multiple ignitions are conducive to the formation of the initial fire core , reduce the probability of misfire, thereby reducing low-speed emissions; under the condition of lean combustion, the amount of fuel that participates...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a natural gas engine parallel ignition system that solves the ignition requirements of natural gas engines in different working conditions, improves ignition performance, and optimizes ignition energy consumption

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