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Sectionalized electrical heating regeneration device for diesel particulate filter

A particle trap and electric heating device technology, which is applied to exhaust devices, mufflers, machines/engines, etc., can solve problems such as complex structures, and achieve the effects of simple device structure, convenient disassembly and assembly, and low regenerative power.

Active Publication Date: 2014-12-10
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of partition electric heating regeneration technology, General Motors Global Technology Operations Company of the United States has a mature system that uses shutters to realize partitions, but there are defects in complex structures

Method used

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  • Sectionalized electrical heating regeneration device for diesel particulate filter
  • Sectionalized electrical heating regeneration device for diesel particulate filter
  • Sectionalized electrical heating regeneration device for diesel particulate filter

Examples

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Embodiment Construction

[0022] figure 1 A diesel engine particulate filter partition electric heating regeneration device is shown, including an electric heating device, an engine exhaust intake pipe 1 is connected to the small end of a conical intake reducing pipe 2, and a large end of the intake reducing pipe is provided. There is an air inlet flange, the large end of the conical air outlet reducing pipe 5 is provided with an air outlet flange, and the front and rear flanges of the cylindrical packaging shell 4 are respectively larger than the air inlet reducing pipe 2. The air inlet flange on the end and the air outlet flange on the large end of the outlet reducing pipe 5 are connected by bolts. The support plate 3 is composed of a ring and a plurality of spokes arranged radially on the inner port of the ring. See Figure 2a , Figure 2b , the annular part of the support plate 3 is clamped between the air inlet flange on the large end of the air inlet reducing pipe 2 and the front end flange of t...

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Abstract

A sectionalized electrical heating regeneration device for a diesel particulate filter is composed of an engine exhaust and intake tube, an intake reducer large end, a packaging shell and a gas outlet reducer large end in a connected mode in sequence. A supporting disk is composed of a circular ring and a plurality of spokes arranged in the radial direction, a rotary baffle is fixed to the spokes of the supporting disk through a bearing, a shaft of a stepping motor is connected with a shaft sleeve of the rotary baffle through a key, and resistance wires are arranged in a channel of the diesel particulate filter. When regeneration needs to be carried out, the stepping motor drives the rotary baffle to rotate to a regeneration area so that the flow of the regeneration area is immediately reduced, and the resistance wires are powered on at the same time so that the purpose of regeneration is achieved. The sectionalized electrical heating regeneration device for the diesel particulate filter is simple in structure and capable of running for a long time, and has the advantages of being convenient to disassemble and assemble, reliable in performance and the like.

Description

technical field [0001] The invention relates to an automobile exhaust after-treatment system, in particular to a device for performing regional electric heating and regeneration on a diesel engine particle trap. Background technique [0002] Due to its high thermal efficiency and low CO 2 Emissions and other advantages, and is widely used in the transportation industry. However, the emission of particulate matter is large (30 to 80 times that of gasoline engines with the same displacement), which causes serious pollution to the environment and harms human health, thus severely limiting its development. Therefore, stringent emission standards require effective and reliable technologies to reduce particulate emissions. From a technical point of view, it is difficult to meet the current emission standards only by in-flight purification and improvement of fuel quality. At present, diesel engines that meet the "National IV" emission regulations generally use after-treatment te...

Claims

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Application Information

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IPC IPC(8): F01N3/027
Inventor 孟忠伟张靖蒲云飞李路张川杨冬
Owner XIHUA UNIV
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