A composite air intake system for real-time realization of oxygen-enriched combustion in internal combustion engines

Abstract

The invention discloses a compound air intake system capable of realizing oxygen-enriched combustion in a combustion motor in real time. Oxygen-enriched combustion is an important way to improve combustion efficiency of the combustion motor and reduce harmful emissions, but because of the source of oxygen enrichment and the problem of nitric oxide (NOX) discharge, the technology cannot be realized on the combustion motor so far. The invention discloses a new method for realizing oxygen generation in the combustion motor in real time by jointly using the technologies of exhaust turbocharging and pressure swing absorption oxygen generation, designs a corresponding compound air intake system and discloses an air intake protocol for realizing oxygen-enriched combustion. The air intake protocol is as follows real-time injecting oxygen of different qualities according to the working situation in the combustion motor in real time, and introducing wasted gas and fresh air of different qualities; and preparing intake air with different oxygen concentrations in an air inlet to realize clean oxygen-enriched combustion in a cylinder and inhibit the generation of harmful emission, such as soot, NOX and the like while improving the combustion efficiency. The greatest advantage of the compound air intake system capable of realizing the oxygen-enriched combustion in the combustion motor in real time is that real-time oxygen generation on the combustion motor can be realized by combining the technology of exhaust turbo-charging to realize 'using oxygen while generating' so as to provide basal guarantee for the oxygen-enriched combustion technology using on the combustion motor. The compound air intake system capable of realizing the oxygen-enriched combustion in the combustion motor, in real time disclosed by the invention, has a wider application prospect.

Description

technical field [0001] The patent of the present invention relates to the development of a composite air intake system for realizing oxygen-enriched combustion in real time on an internal combustion engine. It is a combination of exhaust gas turbocharging technology of internal combustion engine and pressure swing adsorption gas separation technology to design a set of oxygen generator to solve the problem of oxygen source of internal combustion engine oxygen-enriched combustion. It injects the oxygen produced by the pressure swing adsorption oxygen production system into the intake pipe in real time, and introduces a certain amount of exhaust gas and fresh air to form intake air with different oxygen concentrations to provide intake air for the oxygen-enriched combustion organization of the internal combustion engine. This kind of composite air intake system can realize the "preparation and use" of oxygen on the internal combustion engine, providing a basic guarantee for the ...

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Problems solved by technology

[0007] The present invention proposes a new scheme for real-time oxygen production on the internal combustion engine by combining exhaust gas turbocharging and pressure swing adsorption oxygen production technology, and designs a corresponding composite intake system to solve the current technology that cannot realize real-time oxygen production on the internal combustion engine provide an important guarantee for the engineering realization of oxyfuel combustion technology on internal combustion engines

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