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Exhaust gas post processing system

A technology of exhaust gas and main valve, which is applied in the direction of exhaust treatment, electronic control of exhaust treatment devices, exhaust devices, etc., can solve the problems of increased fuel consumption, increased back pressure of exhaust pipelines, and reduced output. Achieves the effect of suppressing output deterioration and reducing fuel consumption

Inactive Publication Date: 2012-05-30
HYUNDAI MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the case where the gasoline particulate filter is placed on the discharge line, the back pressure of the discharge line increases, the output decreases, and the fuel consumption increases

Method used

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  • Exhaust gas post processing system
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  • Exhaust gas post processing system

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Embodiment Construction

[0027] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0028] refer to figure 1 , an exemplary exhaust gas aftertreatment system may include an engine 100 , an exhaust line 110 , a gasoline particulate filter (GPF) 130 , a bypass line 140 , a main valve 120 , a bypass valve 150 and a control part 160 .

[0029] Exhaust gas discharged from ...

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Abstract

An exhaust gas post processing system may include an exhaust line for an exhaust gas exhausted from an engine to pass, a gasoline particulate filter that is disposed on the exhaust line to filter harmful materials included in the exhaust gas, a bypass line that is disposed on the exhaust line such that the exhaust gas bypasses the gasoline particle filter, and a control portion that detects a driving condition of the engine and makes the exhaust gas pass the gasoline particulate filter or makes the exhaust gas bypasses the gasoline particulate filter according to the detected driving condition.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2010-0115634 filed with the Korean Intellectual Property Office on Nov. 19, 2010, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to an exhaust gas aftertreatment system equipped with a gasoline particulate filter (GPF) for filtering particulate matter contained in engine exhaust gas. Background technique [0004] Generally, a gasoline direct injection (GDI) engine such as a diesel engine flows air into a cylinder and directly injects fuel into the cylinder, and a certain amount of particulate matter is discharged along with exhaust gas. [0005] Install a gasoline particulate filter (GPF) to reduce particulate matter. In the case where the gasoline particulate filter is provided on the discharge line, the back pressure of the discharge line increases, the ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N9/00
CPCF01N3/031F01N9/002F01N2410/02Y02T10/47Y02T10/20Y02T10/12Y02T10/40
Inventor 崔茂莹
Owner HYUNDAI MOTOR CO LTD