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Exhaust catalyst

A catalyst and exhaust pipe technology, applied in exhaust devices, machines/engines, air quality improvement, etc., can solve problems such as increasing the difficulty of exhaust catalyst layout

Inactive Publication Date: 2014-06-11
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of the distance between the exhaust catalytic converter and the engine manifold and the external factors of the small floor space of the car, the difficulty of the exhaust catalytic converter layout is greatly increased during the development of the car

Method used

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0015] An exhaust catalytic converter described in the figure includes a catalytic converter housing 1, one end of the catalytic converter housing 1 is connected to an exhaust pipe 4 through a first housing end cone 2, and the first housing end cone 2 The first end 2.1 connected to the catalytic converter housing 1 is concentric with the catalytic converter housing 1, and the central axis of the second end 2.2 connected to the exhaust pipe 4 of the first housing end cone 2 deviates from the catalytic converter housing The central axis of 1, that is, the central axis of the second end 2.2 and the central axis of the catalytic converter housing 1 can be designed at a certain angle according to the actual distance between the exhaust ...

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Abstract

The invention discloses an exhaust catalyst which comprises a catalyst shell. One end of the catalyst shell is communicated with an exhaust pipeline via a first shell-end cone, a first end of the first shell-end cone is connected with the catalyst shell and is coaxial with the catalyst shell, a second end of the first shell-end cone is connected with the exhaust pipeline, and the central axis of the second end of the first shell-end cone is deviated from the central axis of the catalyst shell. The exhaust catalyst has the advantages that the distance from the exhaust catalyst to a manifold of an engine can be guaranteed, the flowing smoothness of gas in the exhaust pipeline further can be guaranteed, the exhaust catalyst can be easily used by different types of vehicles and is simple in structure, the development cycle can be effectively shortened, and the development cost can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of automobile engines, in particular to an exhaust catalytic converter which is applied in the automobile exhaust pipe and arranged in the space of the automobile chassis. Background technique [0002] In the original automobile development, the distance between the exhaust catalytic converter of the automobile and the engine manifold is less required. Therefore, the arrangement of the exhaust catalytic converter under the floor has a certain degree of randomness, and with the new emission standards Released, for better light-off, the catalytic converter needs to be as close as possible to the engine manifold, and at the same time, in order to reduce the development cost and shorten the development cycle, it is necessary to meet the requirements of equal distance between the catalytic converter and the engine manifold between different models, so as to achieve the same distance between different models. Gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/28F01N13/08
CPCY02A50/20
Inventor 韩昌孟建军
Owner DONGFENG MOTOR CORP HUBEI