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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 installation and welding of the mixing tube assembly, resulting in an increase in cost

Method used

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Examples

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Embodiment Construction

[0033] Specific implementations of the present invention will be described in detail below with reference to the accompanying drawings, wherein if there are several specific implementations, the features in these implementations can be combined with each other if there is no conflict. When the description refers to the drawings, unless otherwise stated, the same numerals or symbols in different drawings indicate the same or similar elements. What is described in the following exemplary detailed description does not represent all implementations of the invention, but rather they are merely examples of products consistent with the invention as recited in the claims of the invention.

[0034] The terminology used in the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the protection scope of the present invention. It should be understood that words such as "first", "second" and similar words used in the description and cla...

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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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