Engine ignition device on basis of microwave plasma

Abstract

The invention relates to an engine ignition device on the basis of a microwave plasma and belongs to the technical field of automobile energy saving. The engine ignition device comprises a controller, two microwave sources and two waveguide resonant cavities. The controller is respectively connected with the two microwave sources. The two waveguide resonant cavities are respectively connected with the two microwave sources. Each waveguide resonant cavity consists of a rectangular linear waveguide and two cylinders. Each rectangular linear waveguide is connected with the corresponding cylinder through a narrow slit. A separation plate and a piston are respectively arranged in each cylinder, wherein the separation plate is arranged in a cylinder cavity; and the piston is arranged at the lower part of the separation plate. In the ignition device, by the arrangement that the waveguides are coupled with the corresponding cylinders, when the pistons reach a certain position, compression ignition is carried out in a combustion chamber so that accurate control of the ignition time in the combustion chamber is realized; by a mode of compressing the pistons to ignite, large-area and large-volume ignition is carried out in the combustion chamber, so that the increment of the fuel efficiency and the reduction of emission of waste gas are realized.

Description

technical field [0001] The invention relates to an engine ignition device based on microwave plasma, which belongs to the technical field of automobile energy saving. Background technique [0002] The most common method currently used for vehicle ignition is spark ignition, which uses a spark plug to ignite the fuel-air mixture in the combustion chamber. These spark plugs have one or several electrodes, each of which produces an ignition spark that directly ignites the fuel-air mixture near the electrode. So combustion starts first in a very small volume around the spark plug and then propagates at a limited speed, so the flame propagates slowly. In this way, a lot of gasoline is discharged from the cylinder before it can be burned, which not only wastes fuel, but also increases environmental pollution. [0003] Plasma contains a lot of high-energy electrons, ion groups, etc. These particles can react quickly with the oil-air mixture, which can make the oil-air mixture bur...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose an engine ignition device based on microwave plasma, change the structure of the existing engine ignition device, utilize mature plasma technology, through the coupling design between the waveguide and the cylinder and the design of the cylinder itself, to overcome the In the prior art, it cannot adapt to high power operation, insufficient combustion of oil-gas mixture during ignition, and serious environmental pollution.

Images