Hybrid hydrogen and oxygen compression ignition-type diesel oil internal combustion engine and control method thereof

Abstract

The invention relates to a hybrid hydrogen and oxygen compression ignition-type diesel oil internal combustion engine and a control method thereof. The system retains an original engine body and an original control system, with the addition of a vehicle-mounted hydrogen and oxygen production, storage and supply device. The vehicle-mounted hydrogen and oxygen production, storage and supply device mainly comprises a hydrogen and oxygen production machine, an oxygen storage tank and a hydrogen storage tank connected with the hydrogen and oxygen production machine, an oxygen storage tank pressuresensor, a hydrogen storage tank pressure sensor, a hydrogen nozzle, an oxygen nozzle and an electronic control unit. The hydrogen and oxygen electronic control unit judges the working condition of the engine according to the pressure signal of the gas intake manifold, sends the signal to control the time and the pulse width of hydrogen and oxygen injection, and achieves the effect of oxygen mixing during the acceleration process and the cold start process of the engine and simultaneous operation of oxygen mixing and hydrogen mixing when the engine is in the steady-state condition, so as to greatly reduce the particulate emissions during the cold start process and the acceleration process of the diesel engine and improve the heat efficiency and the emission level of the engine in the steady-state condition.

Description

technical field [0001] The invention provides a compression ignition internal combustion engine in which hydrogen and oxygen are mixed in a diesel engine and a control method thereof, and specifically relates to a fuel storage and supply system, fuel ratio distribution and combustion process control of a compression ignition diesel internal combustion engine in which hydrogen and oxygen are mixed . Background technique [0002] Diesel engines are widely used in passenger cars, heavy-duty trucks and construction machinery due to their high thermal efficiency and large output torque. However, the traditional diesel engine adopts diffusion combustion, and the mixing time of air and fuel is short, resulting in a rich mixture area, and a large amount of soot is generated in these areas, causing the diesel engine to start and accelerate to smoke. Although technologies such as high-pressure common rail, multi-injection diesel and exhaust after-treatment can solve the problem of in...

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