Zero emission two-stroke spark ignition type hydrogen oxygen engine and control method

Abstract

The invention provides a zero emission two-stroke spark ignition type hydrogen oxygen engine and a control method, and particularly relates to a fuel feed system, a water spray system and a tail gas energy recovery system of the zero emission two-stroke spark ignition type hydrogen oxygen engine, and control. Hydrogen and oxygen in the zero emission two-stroke spark ignition type hydrogen oxygen engine correspondingly come into an air cylinder by a hydrogen spray nozzle and an oxygen spray nozzle and are ignited quickly after jump spark of an ignition plug to achieve the efficient constant volume burning process. A water spray nozzle, according to the control of an electronic control unit, sprays water and lowers the temperature to the compressing and burning process in the cylinder to make sure combination gas not occur autoignition and an engine body not destroyed because of burning the hydrogen and the oxygen to lead to increase thermal load. A tail gas energy recovery device and aheat exchanger have a second level utilization for high temperature tail gas waste heat generated from burning and increase the efficiency of conversion of heat into power of the technical scheme in the zero emission two-stroke spark ignition type hydrogen oxygen engine and control method. Engine zero hazard emission operation is achieved indeed by adopting burning the hydrogen and the oxygen.

Description

technical field [0001] The invention provides a zero-emission two-stroke ignition-type hydrogen-oxygen engine and a control method, and specifically relates to a fuel supply system, a water spray system, an exhaust energy recovery system and control of a zero-emission two-stroke ignition-type hydrogen-oxygen engine. Background technique [0002] Most current engines use air as the oxidant during combustion, but N2 in the air easily reacts with O2 to generate NOx emissions under the high temperature conditions of the engine combustion chamber, thus causing air pollution when the motor vehicle is running. Although existing three-way catalytic converters and selective catalytic reduction systems can reduce NOx emissions, they cannot completely eliminate NOx emissions generated during engine operation. From the perspective of NOx generation mechanism, if the engine uses pure oxygen as the oxidant and cooperates with N-free fuel combustion, NOx emissions can be completely elimina...

AI Technical Summary

Problems solved by technology

[0008] In view of the low power density, poor efficiency, and high harmful emissions of the current four-stroke engines, when pure hydrogen and oxygen are mixed in the engine cylinder at a stoichiometric ratio and then ignited, the explosion pressure in the cylinder and the combustion temperature of the mixture are too high, and the pure hydrogen and oxygen The invention provides a zero-emission two-stroke ignition-type hydrogen-oxygen engine and its control method to solve the problems of waste heat recovery of high-temperature products after combustion in the engine.

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