Internal rotational flow cross hole double-air-assisted ejector

Abstract

The invention discloses an internal rotational flow cross hole double-air-assisted ejector which comprises a body, the body is provided with a first cavity, a second cavity, a first channel, a second channel and a third channel, the first cavity is arranged on the first end face of the body and is a blind hole formed in the axis of the body, the second cavity is arranged on the periphery of the first cavity in a sleeving mode, and the third channel is arranged on the second end face of the body. The first cavity and the second cavity are coaxially arranged, the side wall of the first cavity is communicated with the side wall of the second cavity through the first channel, the third channel is arranged on the second end face of the body and communicated with the first cavity, and the second cavity is communicated with the third channel through the second channel. The jet device has the beneficial effects that fluid is introduced into the first cavity and the second cavity respectively, then turbulence disturbance in the jet holes of the jet device can be enhanced, better mixing and jetting characteristics are obtained, meanwhile, the high-disturbance jet device enhances the solution atomization effect, the spray particle size is reduced by 25% or above under the same jetting pressure, and the spraying effect is improved. And the fluid evaporation, atomization and mixing efficiency is improved by more than 50%.

Description

technical field [0001] The invention relates to the technical field of ejectors, and more particularly to an internal swirl cross-hole double gas-assisted ejector. Background technique [0002] At present, the ejector is used in many kinds of spraying, spraying, oil spraying, sandblasting, spraying and other equipment, plays an important role, and is a very critical component that affects the effect of fluid atomization. Injectors are widely used in the industry, but still have the following shortcomings: [0003] For example: First, in the field of internal combustion engine in-cylinder fuel atomization, the atomization effect of fuel has a great influence on the fuel combustion effect, which directly affects the emission of pollutants. With the increasingly stringent national emission regulations, The requirements for fuel injectors are becoming more and more stringent; secondly, in order to reduce NOx emissions in the engine after-treatment system, a reducing agent is in...

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Problems solved by technology

[0005] In view of this, the present invention provides an internal swirl cross-hole double air-assisted injector, aiming to solve the problems of poor atomization effect of fuel injectors in the prior art, poor disturbance after mixing of various fluids, etc.

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