Electronic control mixer and after-treatment system comprising same

A technology of mixers and electronically controlled actuators, which is applied in engine control, machine/engine, noise reduction devices, etc., can solve the problems that the performance of mechanical mixers cannot meet higher and higher performance requirements, so as to reduce the risk of crystallization and reduce the Improve fuel consumption and improve conversion efficiency

Pending Publication Date: 2022-01-25
FAURECIA EXHAUST CONTROL TECH DEVHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide an electronically controlled mixer and a post-processing system including it in order to overcome the defect that various performances of the mechanical mixer in the prior art cannot meet higher and higher performance requirements

Method used

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  • Electronic control mixer and after-treatment system comprising same
  • Electronic control mixer and after-treatment system comprising same
  • Electronic control mixer and after-treatment system comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] figure 2 It is a structural schematic diagram of Embodiment 1 of the electric mixer of the present invention. image 3 It is a schematic structural diagram of the electronic control valve assembly in Embodiment 1 of the electric mixer of the present invention. Figure 4 It is a schematic diagram of Embodiment 1 of the electric mixer of the present invention in the fully closed state of the valve plate. Figure 5 It is a schematic diagram of Embodiment 1 of the electric mixer of the present invention in the fully open state of the valve plate.

[0051] Such as Figure 2 to Figure 5 As shown, the present invention discloses an electronically controlled mixer, which includes a mechanical mixer 10 and an electronically controlled valve assembly 20. The electronically controlled valve assembly 20 is installed at the air inlet of the mechanical mixer 10. By adjusting the electronically controlled The opening size of the valve 20 is used to control the inlet flow rate of t...

Embodiment 2

[0063] Image 6 It is a structural schematic diagram of Embodiment 2 of the electric mixer of the present invention. Figure 7 It is a schematic diagram of the second embodiment of the electric mixer of the present invention in the fully closed state of the valve plate. Figure 8 It is a schematic diagram of the second embodiment of the electric mixer of the present invention in the open state of the valve plate.

[0064] Such as Figure 6 to Figure 8 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that: the valve unit 22 includes a semicircular valve plate 224, the rotating shaft 21 is transversely installed in the mechanical mixer 10, and the semicircular valve The sheet 224 is connected to the rotating shaft 21 and located at the air inlet 12 of the mechanical mixer 10 , and the rotating shaft 21 drives the semicircular valve sheet 224 to open outward.

[0065] Here, the valve plate unit 22 preferably adopts the...

Embodiment 3

[0069] Figure 9 It is a structural schematic diagram of Embodiment 3 of the electric mixer of the present invention. Figure 10 It is a schematic diagram of Embodiment 3 of the electric mixer of the present invention in the fully closed state of the valve plate. Figure 11 It is a schematic diagram of Embodiment 3 of the electric mixer of the present invention in the open state of the valve plate.

[0070] Such as Figure 9 to Figure 11 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that: the valve unit 22 includes a fan-shaped valve 225, the rotating shaft 21 runs through the mechanical mixer 10, and the fan-shaped valve 225 is connected to the rotating shaft 21 , located at the air inlet 12 of the mechanical mixer 10 , the fan-shaped valve plate 225 is driven by the rotating shaft 21 to rotate around the axis of the air inlet of the mechanical mixer 10 .

[0071] Here, the valve unit 22 preferably adopts a fan-...

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Abstract

The invention provides an electronic control mixer and an after-treatment system comprising the same. The electronic control mixer comprises a mechanical mixer and an electronic control valve assembly, wherein the electronic control valve assembly is installed at an air inlet of the mixer, and the flow of the air inlet of the mixer is controlled by adjusting the size of a valve opening of an electronic control valve; and the electronic control valve assembly comprises a rotating shaft, a valve plate unit and an electronic control actuator, the rotating shaft is fixed in the mechanical mixer, the valve plate unit is installed on the rotating shaft and located at the air inlet of the mechanical mixer, the electronic control actuator is connected with one end of the rotating shaft, fixed outside the mechanical mixer and used for controlling the rotating shaft to rotate, and therefore opening and closing of the valve plate unit are controlled. The functional concept of the electronic control valve is applied to the mechanical mixer, so that the mechanical mixer is upgraded into the electronic control mixer. According to the electronic control mixer, the heat management function of the electronic control valve is added to the mechanical mixer, and meanwhile, the functions of the mixer are greatly increased by utilizing the advantages of the electronic control actuator.

Description

technical field [0001] The invention relates to the field of mixers, in particular to an electronically controlled mixer and a post-processing system including the same. Background technique [0002] figure 1 It is a structural schematic diagram of a mechanical mixer in the prior art. [0003] Such as figure 1 As shown, in the prior art, the traditional mechanical mixer 10 is an important component to realize the function of the ammonia oxidation catalyst (SCR), and is packaged in the engine aftertreatment device, before the SCR. In commercial vehicle applications, the urea nozzle 11 is usually integrated on the mixer. [0004] Generally, the functions of a mechanical mixer mainly include the following requirements: [0005] 1. The urea is decomposed into ammonia gas and the exhaust gas of the engine is fully and evenly mixed to improve the conversion efficiency of SCR for nitrogen and oxygen reduction (ammonia uniformity). [0006] 2. The exhaust back pressure caused b...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F01N3/28F02D9/04F02D9/10
CPCF01N3/2892F02D9/04F02D9/109F02D9/101F02D9/1065
Inventor李晓路皮埃尔-伊夫斯·哈利耶王杰
OwnerFAURECIA EXHAUST CONTROL TECH DEVHANGHAI