Exhaust gas purification system for diesel engines of commercial vehicles

A technology for diesel engine and exhaust purification, applied in engine components, combustion engines, machines/engines, etc., and can solve problems such as space problems

Active Publication Date: 2011-06-22
EMITEC EMISSIONSTECHNIK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this purpose, a catalytic converter should also be arranged in the exhaust system, where, especially for commercial vehicles, the (larger) exhaust gas volumes generated can cause space problems when integrating (integrating) a relatively large-volume converter

Method used

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  • Exhaust gas purification system for diesel engines of commercial vehicles
  • Exhaust gas purification system for diesel engines of commercial vehicles
  • Exhaust gas purification system for diesel engines of commercial vehicles

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Embodiment Construction

[0035] according to Figure 1-3 The exhaust gas purification system in is used in diesel engines of commercial vehicles, especially for heavy goods vehicles, buses, or ships or aircraft. The power requirements of a commercial vehicle of this size are very high, while at the same time the consumption should be as low as possible. Consequently, the displacement / working volume of such diesel engines for commercial vehicles varies in the range of eg 6 liters to 12 liters or even higher. Such diesel engines are generally equipped with an exhaust-gas turbocharger to increase power and reduce specific consumption. An exhaust-gas turbocharger is understood to be a combination of an exhaust-gas turbine and a turbocompressor, wherein the exhaust-gas turbine is acted upon by the exhaust gas of the diesel engine and the turbocompressor is driven by the exhaust-gas turbine. The intake air to the diesel engine is subjected to an elevated boost pressure by the turbo compressor whereby a gr...

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PUM

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Abstract

Disclosed is an exhaust gas purification system for diesel engines (1) of commercial vehicles, comprising an oxidation catalyst (3) that is arranged in the exhaust gas system (2, 4, 11), a reducing agent-dosing device (5) that is equipped with a reducing agent-spraying mechanism (6), a reducing agent-decomposing device (7), a soot particle separator (8), a reduction catalyst (9), and a muffler (10) for the exhaust gases. The oxidation catalyst (3) is disposed within a minimum distance directly downstream of the discharge valves of the engine (1) and a maximum distance (24) of 0.75 m from an exhaust manifold (13) or an outlet of a turbocharger (23). The reducing agent-decomposing device (7), the soot particle separator (8), and the reduction catalyst (9) are arranged separately from the oxidation catalyst (3).

Description

technical field [0001] The invention relates to an exhaust purification system for a diesel engine of a commercial vehicle, the exhaust purification system comprises an oxidation catalyst (converter) arranged in the exhaust line, a reducing agent with a reducing agent injection (injection) device Agent dosing device, reducing agent decomposition device, carbon black / soot particle separator, reduction catalyst (conversion) device and muffler. Background technique [0002] In the field of exhaust gas treatment of mobile internal combustion engines, catalytic converters and soot particle separators in the form of honeycomb bodies with channel-forming, structured carrier elements (in particular sheet metal, wire non-woven fabrics etc., or ceramic plates, extrudates...), wherein the structure of the carrier element can be given a microstructure which forms openings and flow-guiding surfaces which The partial flow of exhaust gas is directed along the carrier element from the insi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/94F01N3/023F01N3/08
CPCF01N2610/02F01N2340/00B01D2257/404F01N3/0335F01N2610/102F01N3/035Y02T10/24B01D2258/012F01N3/2885F01N13/14B01D2255/91F01N2240/16F01N3/2066F01N2240/20B01D2257/702F01N3/103B01D2251/2062B01D53/9477F01N2240/40F01N2470/20Y02T10/12Y02A50/20
Inventor R·布吕科
Owner EMITEC EMISSIONSTECHNIK
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