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Plasma burner and diesel particulate filter trap

A particle filter, diesel engine technology, applied in the direction of machines/engines, chemical instruments and methods, mechanical equipment, etc., can solve the problems of electric heater consumption, large power, etc., and achieve the effect of simplifying the structure and simplifying the preheating structure

Active Publication Date: 2009-02-25
KOREA INST OF MASCH & MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In this forced regeneration method, the electric heater has the disadvantage of consuming a large amount of power
Since the burner uses oxygen in the exhaust gas, the burner makes it difficult to perform operation control in accordance with the changing condition of oxygen in the exhaust gas according to the operating state
Throttling reduces the oxidation temperature of PM in the oxidation catalyst, but there is a drawback in that the device for throttling should be connected to the air inflow pipe and the air outflow pipe

Method used

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  • Plasma burner and diesel particulate filter trap
  • Plasma burner and diesel particulate filter trap
  • Plasma burner and diesel particulate filter trap

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Embodiment Construction

[0075] Hereinafter, the present invention will be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present invention are shown. As those skilled in the art will recognize, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. The drawings and description are to be shown as illustrative rather than restrictive. The same reference numerals are used to denote the same elements throughout the specification.

[0076] figure 1 It is a block diagram of a diesel particulate filter according to the first exemplary embodiment of the present invention. Reference figure 1 The diesel particulate filter is a device that traps and oxidizes PM contained in the exhaust gas discharged through an exhaust pipe 40, which is connected to the engine 20.

[0077] The diesel particulate filter includes an oxidation catalyst 60 for mainly oxidizing PM, a filter 80 that traps re...

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Abstract

A plasma burner and a diesel particulate filter (DPF) trap that can effectively oxidize and remove a particulate material (PM) within an exhaust gas by preheating fuel and mixing the fuel with the exhaust gas are provided. The DPF includes: a filter that is connected to an exhaust conduit at a side opposite to that of an engine; the plasma burner that is provided within the exhaust conduit between the engine and the filter and includes a fuel inlet that supplies fuel and a flame vent that projects a flame by a plasma discharge; and a fuel inflow conduit that connects the fuel inlet and a fuel tank.

Description

Technical field [0001] The invention relates to a plasma burner and a diesel engine particle filter trap. More specifically, the present invention relates to a plasma burner and a diesel particulate filter trap capable of effectively oxidizing and removing particulate material (PM) in exhaust gas by preheating fuel and mixing the fuel with exhaust gas. [0002] The present invention relates to a plasma burner and a diesel particulate filter trap. The plasma burner and diesel particulate filter trap can effectively oxidize and remove waste gas by installing and preheating the plasma burner in an exhaust gas pipe PM, and can maximize the use of the space around the exhaust pipe. Background technique [0003] The PM of motor vehicle exhaust is mainly discharged from diesel engines. Diesel engines use the mixing ratio of air and fuel to adjust their output. In order to quickly output high power, the fuel supply relative to a predetermined amount of air should be increased. In this ca...

Claims

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Application Information

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IPC IPC(8): F01N3/025F01N3/027
CPCB01D53/32F01N3/01F01N3/20F01N2240/28F01N2610/107F01N2610/1453
Inventor 李大勋金冠泰宋永焄车旻锡李载玉
Owner KOREA INST OF MASCH & MATERIALS
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