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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  • Summary
  • Abstract
  • Description
  • Claims
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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

Method used

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  • Turbulent-flow type Venturi mixer

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[0029] The technical solutions of the present invention will be described below in conjunction with the drawings, as will be described, as described herein is an embodiment of the invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0030] In the description of the invention, it is to be described in the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "within", "outside", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, is merely intended to describe the present invention and simplified description, rather than indicating or implying that the device or component must have a specific orientation. Construct and operation, so it is not understood to be the limitation of the invention. Moreover, the term "first", "second", ...

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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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