High-speed diesel electronic control transverse currents continuousvariable mechanical installation

Abstract

The invention relates to an electronic control vortex continuous variable mechanical device unit used for a high-speed diesel engine, comprising a shell. The shell is provided with an air inlet; the rear end of the air inlet is provided with two air inlet passages; one is an air inlet vortex continuous variable passage and the other is an EGR wasted gas recycle passage; the air inlet vortex continuous variable passage is internally provided with a throttle valve. The invention successfully implements the sufficient mixing of the fuel and the air, improves the economic and exhaust of the fuel; the lowest fuel consumption rate of a diesel engine after the variable vortex control is adopted reaches 205g / kWh, which reaches the European standard IV; furthermore, the casting, processing and assembling of the invention are simple, and the cost is low.

Description

technical field [0001] The invention relates to an electronically controlled swirl continuously variable mechanical device unit for high-speed diesel engines, belonging to the technical field of diesel engine intake swirl systems. Background technique [0002] Diesel engines are compression ignition engines. For most diesel engines, especially high-speed diesel engines, it is difficult to ensure good mixing of fuel and air only by fuel atomization, so air vortex is used to promote mixing. Good mixture formation can shorten the ignition delay period and combustion duration, make the diesel engine work softly, complete combustion, reduce harmful emissions, especially reduce NOX content and exhaust smoke, so as to obtain good economy, power and emissions index. However, the intake vortex intensity is not as high as possible, which is not only restricted by the charging performance of the engine, but also limited by the mutual interference between adjacent oil jets. For an eng...

AI Technical Summary

Problems solved by technology

Generally speaking, increasing the swirl ratio can accelerate and complete the combustion, which can lead to an increase in the maximum combustion pressure and temperature in the cylinder, thereby significantly increasing the emission of NOX; if the intensity of the intake swirl is reduced, the emission of NOX can be reduced , but it is bound to sacrifice the power and economy of the diesel engine

The traditional diesel engine has no control over the intake vortex, so that the power and economy of the diesel engine are not very good, and the emission is poor.

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