Engine system and engine fuel injection method

Abstract

The invention provides an engine system and an engine fuel injection method. A hydrogen supply device and a water supply device are directly connected with a combustion chamber to directly inject hydrogen and water into the combustion chamber correspondingly, hydrogen is injected into the combustion chamber at least two times so that the concentration of hydrogen in the combustion chamber can be distributed in a gradient manner, in this way, the over-high combustion rate of hydrogen can be controlled, then knocking is prevented, and therefore an engine can work in a large-load working environment; and furthermore, water is directly injected into the combustion chamber through a water injection device, so that the combustion speed of hydrogen is controlled, the combustion speed of hydrogen is prevented from being too high, knocking is further prevented, the combustion temperature can be reduced, and therefore generation of nitrogen oxide pollution gas is reduced, and meanwhile the engine system and the engine fuel injection method are beneficial to enhancing expansion acting and improving heat efficiency.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine system and an engine fuel injection method. Background technique [0002] With the increase of global car ownership, environmental pollution, especially greenhouse gases (CO 2 ) emissions have increasingly become the focus of public opinion. Traditional internal combustion engines use carbon-containing fossil fuels (mainly petroleum products) as their energy source, which inevitably produces a large amount of CO 2 emission. Due to its own characteristics, hydrogen energy has many advantages compared to traditional fossil energy, such as no carbon atoms, so no CO will be produced during the combustion process 2 and other emissions. [0003] There are two main applications of hydrogen as a vehicle energy source, namely fuel cells and hydrogen engines. Fuel cells cannot be applied on a large scale at this stage due to the high purity of hydrogen and high requirements ...

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide an engine system to solve the problems of knocking and power limitation of hydrogen engines in the prior art

[0006] Another object of the present invention is to provide an engine system to solve the problem in the prior art that the combustion temperature is too high to produce a large amount of nitrogen oxide polluting gases

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