Working method of igniter with double air inlet eccentric double anode structure

Abstract

The invention discloses a working method of an igniter with a double air inlet eccentric double anode structure. The method specifically includes the following steps that during work, a certain amountof air or fuel is introduced through an air inlet a; meanwhile, firstly, a power supply supplies power to a short anode and a long anode at low voltage; at the lower voltage, dielectric barrier discharging happens between the short anode and an anode insulating positioning sleeve, between the anode insulating positioning sleeve and a grounded electrode, and between the long anode and the anode insulating positioning sleeve separately; the power supply supplies power to the long anode at higher voltage, under action of the higher voltage, arc discharging happens between the grounded electrodeand the long anode, and when the long anode is energized at the higher voltage, air is introduced into an air channel in the long anode. By means of the working method of the igniter with the double air inlet eccentric double anode structure, the advantages of nonequilibrium plasma of a wide lean burn limit and high reaction activity and the advantages of thermal equilibrium plasma of high workingair pressure and the like are combined, so that the purpose of achieving high-energy stable ignition in a wide fuel air ratio range is achieved.

Description

technical field [0001] The invention relates to a working method of a plasma igniter, in particular to a working method of an igniter with a double intake eccentric double anode structure. Background technique [0002] As a clean energy, natural gas has been widely used as engine fuel. In the field of vehicle power, the number of passenger cars and heavy-duty vehicles fueled by CNG is increasing; in the field of ship power, CNG and LNG-powered ships have become the key research direction in the "Made in China 2025" plan. Compared with gasoline, natural gas as a gas fuel requires greater ignition energy, which makes it difficult to use a single spark plug to ignite natural gas even for small-bore vehicle natural gas engines in actual use, so gasoline has to be used to ignite the engine. normal work. This has led to a series of problems such as system complexity, cost increase, and reliability decrease. Therefore, it is necessary to adopt a new ignition technology and adopt...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low ignition energy, poor ignition reliability, and low utilization rate of ignition energy when the existing heat balance plasma igniter technical solution is applied to large-space combustion chamber engines and natural gas engines, this application provides a dual-entry Working method of igniter with gas eccentric double anode structure

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