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Turbulent-flow type Venturi mixer

A Venturi mixer and Venturi technology, applied in fluid mixers, mixers, machines/engines, etc., can solve problems such as low engine output power, small effective flow area, and insufficient engine air intake, and achieve The effect of improving mixing uniformity, avoiding uneven distribution and reducing the risk of icing

Pending Publication Date: 2021-09-21
DONGFENG COMML VEHICLE CO LTD
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  • Abstract
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Problems solved by technology

However, the impeller of this patent solution is arranged upstream of the core, which will cause the core to damage the cyclone formed by the impeller, and the streamline shape of the impeller is relatively poor, and the pressure loss is relatively high, which will lead to insufficient air intake of the engine and low engine output power. , the square pores will lead to high addition cost and small effective flow area

Method used

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  • Turbulent-flow type Venturi mixer

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Embodiment Construction

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to a Turbulent-flow type Venturi mixer. The Venturi mixer comprises an outer shell, an EGR cross beam and an EGR impeller, wherein the EGR cross beam and the EGR impeller are sequentially arranged along a gas channel in the outer shell, and the EGR cross beam and the EGR impeller are fixed to form an EGR core with a Venturi structure, and then fixed to the outer shell; and air enters the gas channel from an inlet, to-be-mixed gas enters the gas channel through a wall-surface round hole of the EGR core and a central air hole and then is mixed with the air in the gas channel, the flow speed of the gas is increased by means of the Venturi structure, mixing is promoted by means of the relationship between the flow speed and pressure, and after passing through the EGR impeller, the gas rotates to further promote mixing in a follow-up pipeline.

Description

technical field [0001] The invention relates to the technical field of natural gas engine intake systems, in particular to a turbulent flow Venturi mixer. Background technique [0002] Exhaust Gas Recirculation (EGR for short) refers to the technology that the internal combustion engine separates a part of the exhaust gas after combustion, and introduces it into the intake side to make it burn again. The main purpose is to reduce the nitrogen oxides (NOx ) and partial load sharing can increase the fuel consumption rate. The oxygen content in the exhaust gas after combustion of the internal combustion engine is extremely low or even non-existent. After the exhaust gas is mixed with the inhalation air, the oxygen concentration in the inhalation air will be reduced, so the following phenomena will occur: the oxygen content lower than the atmosphere is burning When the temperature is lowered, the generation of nitrogen oxides (NOx) will be suppressed. When the combustion tempe...

Claims

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Application Information

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IPC IPC(8): F02M26/19B01F5/04
CPCF02M26/19
Inventor 徐敏徐恩泽陈功军殷勇李平邓磊
Owner DONGFENG COMML VEHICLE CO LTD
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