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Motor vehicle engine waste gas treatment system integrated with silencing structure

A technology of exhaust gas treatment and engine, applied in the direction of machines/engines, engine components, mufflers, etc.

Pending Publication Date: 2020-10-20
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, there is not enough space left to install the muffler before the rear axle

Method used

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  • Motor vehicle engine waste gas treatment system integrated with silencing structure
  • Motor vehicle engine waste gas treatment system integrated with silencing structure
  • Motor vehicle engine waste gas treatment system integrated with silencing structure

Examples

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Embodiment Construction

[0020] In the various figures of the application, structurally identical or functionally similar features are indicated by the same reference numerals.

[0021] figure 1 An engine exhaust gas treatment system 100 integrated with a sound-absorbing structure according to an embodiment of the present application is schematically shown. In the context of the present application, engine exhaust gas treatment system 100 may be an exhaust gas treatment system of an engine of a motor vehicle, in particular a diesel vehicle. The engine exhaust gas treatment system 100 is connected in series in the exhaust pipe 10 of a motor vehicle, especially a diesel vehicle, and constitutes a part of the exhaust pipe 10 . In the context of this application, the term "connected in series" means that the engine exhaust treatment system 100 has internal passages through which gases can flow in series with the remaining sections of the exhaust pipe so that the engine exhaust gas flows through the entir...

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Abstract

The invention discloses an engine waste gas treatment system integrated with a silencing structure. The engine waste gas treatment system comprises a plurality of waste gas treatment modules, each waste gas treatment module defines an internal channel through which gas flow can pass; the plurality of waste gas treatment modules are sequentially connected in series; the engine waste gas treatment system further comprises an outlet pipe communicating with an internal channel of the most downstream waste gas treatment module in the plurality of waste gas treatment modules, wherein the most downstream waste gas treatment module is provided with a cylindrical shell; the outlet pipe penetrates through a closed end cover of the cylindrical shell, at least part of the silencing structure is arranged in the cylindrical shell, and the silencing structure comprises a silencing baffle, a plurality of silencing through holes for gas flow to pass through are formed in the silencing baffle, and the silencing baffle is fixed to the upstream of the closed end cover in the cylindrical shell.

Description

technical field [0001] The present application relates to an engine exhaust gas treatment system integrated with a sound-absorbing structure, and also relates to a motor vehicle equipped with the engine exhaust gas treatment system. Background technique [0002] Due to the requirements of environmental protection, the engines of motor vehicles, especially diesel vehicles, are usually equipped with exhaust gas treatment systems. The exhaust gas treatment system has several exhaust gas treatment modules in order to reduce the emission of environmentally harmful substances in the exhaust gas of the engine. [0003] Usually, the engine of the motor vehicle is located in the direction of the front of the vehicle, and the engine exhaust pipe extends from the engine to the rear of the vehicle under the chassis of the motor vehicle, wherein the exhaust pipe must also be arranged around the rear wheel axle of the motor vehicle. As motor vehicle engine exhaust gas emission regulation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N1/02F01N1/08F01N3/022F01N13/00
CPCF01N13/007F01N13/009F01N1/023F01N1/082F01N3/022
Inventor 袁磊何源贾克斌武鹏钟警
Owner ROBERT BOSCH GMBH
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