Tail gas aftertreatment box with tail gas treatment elements arranged side by side

An exhaust gas post-treatment and exhaust gas technology, which is applied in exhaust treatment, exhaust devices, engine components, etc., can solve the problems of difficult layout of volume components, limited space, and increased volume of the treatment box, so as to improve the mixing uniformity and improve the Conversion rate, easy installation effect

Active Publication Date: 2018-07-06
博世汽车系统(无锡)有限公司
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Problems solved by technology

[0003] In order to meet higher levels of exhaust emission requirements, such as Euro VI and Real Driving Emissions (RDE) test requirements, on the one hand, it is necessary to increase the exhaust treatment components, which will lead to an increase in the volume of the entire exh

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  • Tail gas aftertreatment box with tail gas treatment elements arranged side by side
  • Tail gas aftertreatment box with tail gas treatment elements arranged side by side
  • Tail gas aftertreatment box with tail gas treatment elements arranged side by side

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[0034] The present application generally relates to an exhaust gas after-treatment box for processing engine exhaust, and the exhaust gas after-treatment box is suitable for being installed on both sides of the chassis of the entire vehicle. The exhaust gas aftertreatment box of the present application is typically suitable for treating exhaust gas of diesel engines; however, the exhaust gas aftertreatment box may also be suitable for engines that consume other types of fuel (some components in the exhaust gas aftertreatment box may need to be modified accordingly ).

[0035] Hereinafter, an integrated exhaust gas aftertreatment box according to possible embodiments of the present application will be described with reference to the accompanying drawings. It should be noted that the terms "upstream" and "downstream" used in the following description to indicate relative positions are defined relative to the flow direction of the exhaust gas.

[0036] Figure 1 to 6 The integrated e...

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Abstract

The invention discloses a tail gas aftertreatment box. The tail gas aftertreatment box comprises a box body (1), a diesel oxidation catalyst (2), a reductant mixer (3), selective catalytic reducers (4,5) and a reductant injector (9), wherein the box body (1) defines a box body inner space, tail gas sequentially flows through the diesel oxidation catalyst (2), the reductant mixer (3) and the selective catalytic reducers (4,5), the diesel oxidation catalyst (2), the reductant mixer (3) and the selective catalytic reducers (4,5) are born by the box body (1) and are arranged substantially parallelto each other, the reductant injector (9) is configured to eject a reductant into the reductant mixer (3), and a rotational flow guiding element (35) is arranged in the reductant mixer (3) and is used for generating a rotational flow of a mixture of the reductant and the tail gas in the reductant mixer (3).

Description

technical field [0001] The present application relates to an integrated exhaust gas after-treatment box for treating exhaust gas emitted by an engine. Background technique [0002] Engine exhaust contains harmful components. In order to reduce the emission of harmful components in exhaust gas, various after-treatment technologies have been developed. A typical integrated exhaust aftertreatment box for diesel engines suitable for installation on both sides of the vehicle chassis includes a diesel oxidation catalyst (DOC), a selective catalytic reduction (SCR) and a diesel particulate filter (DPF). ). [0003] In order to meet higher levels of exhaust emission requirements, such as Euro VI and Real Driving Emissions (RDE) test requirements, on the one hand, it is necessary to increase the exhaust treatment components, which will lead to an increase in the volume of the entire exhaust aftertreatment box. Due to the limited space on both sides of the vehicle chassis for arran...

Claims

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Application Information

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IPC IPC(8): F01N3/10F01N3/20F01N3/28F01N3/035
CPCF01N3/035F01N3/106F01N3/20F01N3/2066F01N3/28F01N2570/14Y02T10/12
Inventor 丁宁宁亓平肖浩栋M·艾尔玛诺坦C·德林
Owner 博世汽车系统(无锡)有限公司
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