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Gasoline engine tail gas catalytic purifying system conforming to China VI emission standard

An emission standard and catalytic purification technology, which is applied in the direction of exhaust treatment, exhaust equipment, and electronic control of exhaust treatment equipment, etc., can solve the problems of assembly and distribution design influence, inconvenient volume, vehicle layout and installation, etc., to achieve improved purification effect of effect

Inactive Publication Date: 2020-02-11
ZHEJIANG DA FENG AUTOMOBILE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, when some manufacturers produce exhaust gas purification systems that can meet the National VI emission standards, they simply increase the volume of the catalytic converter. Although it can meet the requirements numerically, its large volume is not convenient for layout and installation on vehicles. Impact on assembly and distribution design

Method used

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  • Gasoline engine tail gas catalytic purifying system conforming to China VI emission standard
  • Gasoline engine tail gas catalytic purifying system conforming to China VI emission standard
  • Gasoline engine tail gas catalytic purifying system conforming to China VI emission standard

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Embodiment Construction

[0024] The present invention is described in detail below in conjunction with accompanying drawing:

[0025] Such as figure 1 , 2 , 3 and 4 show a gasoline engine tail gas catalytic purification system that meets the National VI emission standards, including an exhaust assembly 1, a pre-catalyst 2, a first connecting pipeline 3, The main catalyst 4 and the second connecting pipeline 5, the pre-catalyst 2 and the main catalyst 4 are respectively embedded with catalytic carriers 6 . The second connecting line 5 is connected downstream to a muffler in the rear exhaust system. Exhaust assembly 1 is composed of the exhaust manifold on the exhaust side of the vehicle engine, which is welded at the edge of the upper and lower components to form a pipe connecting the corresponding number of cylinders of the gasoline engine (a 4-cylinder engine corresponds to 4 exhaust pipes, so that By analogy), the exhaust manifold is sealed and connected with the exhaust side of the engine throug...

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Abstract

The invention aims at providing a gasoline engine tail gas catalytic purifying system conforming to a China VI emission standard. The gasoline engine tail gas catalytic purifying system is used for solving the problems existing in the prior art. The gasoline engine tail gas catalytic purifying system comprises an exhaust assembly, a pre-catalyst, a first connecting pipeline, a main catalyst and asecond connecting pipeline which are sequentially connected towards the downstream part in the exhaust direction of a gasoline engine. Catalytic carriers are embedded in the pre-catalyst and the maincatalyst correspondingly. The gasoline engine tail gas catalytic purifying system conforming to the China VI emission standard has a reasonable structure facilitating assembling and chassis space arrangement, a reasonable tail gas fluid moving path is provided, the catalytic performance can be obviously improved, and the emission standard is met.

Description

technical field [0001] The invention relates to the field of vehicle gasoline engine tail gas purification equipment, in particular to a gasoline engine tail gas catalytic purification system that meets the National VI emission standards. Background technique [0002] An important condition for the approval of an access application is that the exhaust emissions meet the requirements of the national emission regulations. Due to the high original exhaust of the engine, for traditional fuel-type vehicles, the use of automotive exhaust catalytic converters is an essential part for automotive exhaust emissions to meet the requirements of national emission standards. From July 1, 2020, all light vehicles sold and registered in my country are required to meet the requirements of the sixth stage of emission standards. Compared with the National V emission standard, the new standard significantly reduces the allowable emission values ​​of harmful components CO, NOx, THC, and NMHC in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/28F01N13/00F01N11/00
CPCF01N3/28F01N3/2828F01N3/2853F01N11/002F01N13/0093Y02T10/40
Inventor 王秋艳乔锋华王伟殷超李光凤姬欢欢徐志聪戈大朋
Owner ZHEJIANG DA FENG AUTOMOBILE TECH
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