Tail gas post-treatment seal

A technology for after-treatment of exhaust gas and installation of covers, which is applied in the direction of exhaust gas treatment, exhaust devices, noise reduction devices, etc., which can solve the problems of cost increase, achieve the effect of reducing coaxiality requirements and improving the convenience of assembly

Pending Publication Date: 2020-07-03
TENNECO SUZHOU EMISSION SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design puts high requirements on the opening size of the baffle, the instal

Method used

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  • Tail gas post-treatment seal
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  • Tail gas post-treatment seal

Examples

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Example Embodiment

[0033] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If there are several specific embodiments, the features in these embodiments can be combined with each other without conflict. When the description refers to the accompanying drawings, unless otherwise specified, the same numbers or symbols in different drawings represent the same or similar elements. The contents described in the following exemplary specific embodiments do not represent all the embodiments of the present invention, on the contrary, they are only examples of products consistent with the present invention described in the claims of the present invention.

[0034] The terms used in the present invention are only for the purpose of describing specific implementations, and are not intended to limit the protection scope of the present invention. It should be understood that the terms "first", "second" and similar words used in the des...

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Abstract

The invention discloses a tail gas post-treatment seal. The tail gas post-treatment seal comprises an outer housing, a first baffle plate and a second baffle plate which are positioned in the outer housing and are arranged in a spaced mode, a first post-treatment carrier assembly positioned in the outer housing, a second post-treatment carrier assembly, a third post-treatment carrier assembly anda mixing tube assembly which is arranged between the second post-treatment carrier assembly and the third post-treatment carrier assembly in a communication mode, and further comprises a first connecting cavity positioned on the fourth side surface of the second baffle plate and a second connecting cavity positioned between the first baffle plate and the second baffle plate; the mixing tube assembly comprises a tail end extending into the second connecting cavity, and the mixing tube assembly is fixed to the second baffle plate; and a gap is formed between the tail end and the first baffle plate. In this way, the tail gas post-treatment seal reduces coaxiality requirements while the mixing tube assembly is assembled, cancels a welding process, and improves assembly convenience of the tailgas post-treatment seal.

Description

technical field [0001] The invention relates to an exhaust gas after-treatment package, which belongs to the technical field of engine exhaust after-treatment. Background technique [0002] As emissions regulations continue to evolve, existing exhaust aftertreatment packages often feature mixer tube assemblies. The ends of the mixing tube assembly are usually welded to corresponding baffles. This design imposes high requirements on the opening size of the baffle plate, the installation and welding of the mixing tube assembly, resulting in an increase in cost. Contents of the invention [0003] The object of the present invention is to provide an exhaust gas after-treatment package that is easy to assemble. [0004] In order to achieve the above object, the present invention adopts the following technical solution: an exhaust gas post-treatment package, which includes an outer shell, a first baffle and a second baffle located in the outer shell and arranged at intervals, ...

Claims

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Application Information

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IPC IPC(8): F01N13/00F01N13/18F01N3/28F01N3/20
CPCF01N3/2066F01N3/2892F01N13/18F01N13/1888F01N2240/20F01N2610/02F01N2610/1453F01N13/0097F01N13/017
Inventor 李伟吕春虎慕玉龙于百战
Owner TENNECO SUZHOU EMISSION SYST
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