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Plasma burner and diesel particulate filter trap

A particulate filter and trap technology, which is applied in the field of ion burners and diesel particulate filter traps, can solve the problems of electric heater consumption and large power, and achieve the effect of simplifying the structure and simplifying the preheating structure

Active Publication Date: 2011-04-13
KOREA INST OF MACHINERY & 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] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. The drawings and description are to be regarded as illustrative rather than restrictive. The same reference numerals are used to refer to the same elements throughout the specification.

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

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

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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 trap 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 present invention relates to a plasma burner and a diesel particulate filter trap. More particularly, the present invention relates to a plasma burner and a diesel particulate filter trap capable of efficiently oxidizing and removing particulate material (PM) within exhaust gas by preheating fuel and mixing the fuel with the exhaust gas. [0002] The present invention relates to a plasma burner and a diesel particulate filter trap capable of efficiently oxidizing and removing the PM and enables maximum use of the space around the exhaust pipe. Background technique [0003] PM in motor vehicle exhaust is mainly emitted from diesel engines. A diesel engine uses the mixing ratio of air and fuel to adjust its output. In order to output high power quickly, the supply of fuel should be increased relative to a predetermined amount of air. In this case, due to the insufficient amount of air, some of the fuel is incompletely combusted, thereby generating...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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 MACHINERY & MATERIALS