Supercharger, exhaust aftertreatment system and control method thereof

An exhaust aftertreatment and supercharger technology, applied in the field of vehicles, can solve the problems of shortened, insignificant, and unsatisfactory emission effect of the catalytic converter, so as to shorten the light-off time, reduce temperature loss, and reduce exhaust gas. The effect of emissions

Pending Publication Date: 2022-01-28
NINGBO GEELY ROYAL ENGINE COMPONENTS +2
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Problems solved by technology

With this solution, the light-off time of the catalytic converter is not significantly shortened, and the effect of reducing emissions is not ideal

Method used

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  • Supercharger, exhaust aftertreatment system and control method thereof
  • Supercharger, exhaust aftertreatment system and control method thereof
  • Supercharger, exhaust aftertreatment system and control method thereof

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Embodiment Construction

[0027] The technical solutions herein will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific embodiments described here are only used for explaining the text, rather than limiting the text.

[0028] Existing superchargers for automobiles are a technology that pre-compresses air before it is supplied into cylinders to increase air density and intake air volume. The purpose is to increase the inflation volume, increase power, improve economy, and improve emissions.

[0029] Superchargers can be divided into three categories according to the different power sources provided, exhaust gas turbocharger, mechanical turbocharger, and electric auxiliary turbocharger. Compress air through the supercharger to increase the air intake density of the engine, thereby increasing the engine's power per liter. At the same time, because the mixed combustion regulation of the engine has been improved...

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Abstract

The invention provides a supercharger, an exhaust aftertreatment system and a control method thereof. The supercharger comprises a volute and a turbine, wherein the volute is provided with an air inlet and an air outlet, and the turbine is arranged in the volute. The supercharger further comprises an auxiliary catalyst, and the auxiliary catalyst is installed at the position, between the air inlet and the turbine, in the volute. The auxiliary catalyst is arranged in the volute of the supercharger, and the auxiliary catalyst is arranged at the position close to the air inlet of the volute, so that a carrier of the auxiliary catalyst is completely surrounded by exhaust gas. In addition, the distance between the air inlet of the volute and the exhaust port of the engine is short, so that the ignition time of the auxiliary catalyst is effectively shortened, and the exhaust emission of the vehicle is effectively reduced.

Description

technical field [0001] This article relates to but not limited to the technical field of vehicles, and in particular relates to a supercharger, an exhaust aftertreatment system and a control method thereof. Background technique [0002] With the development of society, the penetration rate of automobiles is increasing day by day, and the pollutants emitted by automobiles are also further increased. In order to achieve energy saving and emission reduction, the country has implemented the National VI emission standard ahead of schedule, and has begun to plan the National VII emission regulation. On the other hand, for vehicle manufacturers, it is necessary to invest a lot of manpower and material resources in the research and development of new technologies to reduce vehicle emissions. After analysis, the emission of pollutants exceeding the standard is mainly concentrated in the cold start stage of the engine. [0003] At present, in order to shorten the light-off time of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/00F01N3/10F01N9/00F01N3/28
CPCF02B37/00F01N3/101F01N9/00F01N3/28Y02A50/20Y02T10/12Y02T10/40
Inventor 李荣平宋志辉张亚洲杨建牟宗宝夏玉茗夏英子王瑞平肖逸阁
Owner NINGBO GEELY ROYAL ENGINE COMPONENTS
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