Methanol engine with dual-plasma generator

Abstract

The invention relates to a methanol engine with a dual-plasma generator. According to the technical scheme, the methanol engine comprises an engine air cylinder, an igniter, an ECU, a methanol nozzle,a methanol pressurizing pump and a methanol storage tank, an air inlet manifold and an exhaust pipe communicating with the engine air cylinder are connected to the engine air cylinder, an exhaust gasrecirculation pipeline communicating with the air inlet manifold and the exhaust pipe is arranged between the air inlet manifold and the exhaust pipe, an EGR valve is installed on the exhaust gas recirculation pipeline, the signal input end of the EGR valve is connected with the signal output end of the ECU, a first plasma generator is installed on the air inlet manifold, and a second plasma generator and a three-way catalytic converter are successively installed at a connecting point between the exhaust gas recirculation pipeline and the exhaust pipe along the exhaust pipe at the rear part of the exhaust direction of the exhaust pipe. According to the methanol engine with the dual-plasma generator, the engine ignition delay time is shortened, the flame propagation velocity in the cylinder is increased, thus the combustion efficiency is improved, emission of hydrocarbons is lowered, and the reoxidation temperature of pollutants such as NOx, CO and formaldehyde is lowered, so that theconversion efficiency of the three pollutants is improved.

Description

technical field [0001] The invention relates to a methanol engine, in particular to a methanol engine with dual plasma generators. Background technique [0002] At present, methanol is recognized globally as one of the most promising clean fuels for internal combustion engines. Professor George A. Ola, the American Nobel laureate, clearly declared in his book "Methanol Economy": "After humans have passed the age of oil and gas, The fuel of the future is methanol." [0003] For China, which is "poor in oil and gas, and relatively rich in coal", using clean, efficient, safe and economical methanol as an alternative fuel for vehicles and ships is conducive to national energy security and a road to diversified energy development. [0004] From July 1, 2019, China's engine exhaust emission control requirements have reached the National VI standard. In order to make the methanol engine meet the emission level of China VI and above, the mainstream technology of automobile emissio...

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Problems solved by technology

[0006] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a methanol engine with dual plasma generators, which can effectively solve the problem of the reduction of cylinder combustion stability caused by the introduction of too much exhaust gas in the exhaust gas recirculation system, and the occurrence of hydrocarbons. and the problem of increased emissions of formaldehyde

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