Diesel particulate filter

A filter, diesel engine technology, applied in the direction of dispersed particle filtration, machine/engine, mechanical equipment, etc., can solve the problems of DPF damage, rising combustion temperature, etc., to avoid the deterioration of working state and fuel consumption rate.

Inactive Publication Date: 2006-10-25
HEESUNG ENGELHARD CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the combustion temperature of the deposited PM increases as the amount of the deposited PM increases, so that the DPF may be damaged due to the thermal stress generated by the temperature increase

Method used

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  • Diesel particulate filter
  • Diesel particulate filter
  • Diesel particulate filter

Examples

Experimental program
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Embodiment Construction

[0030] image 3 is a cross-sectional view of a housing with a filter structure according to the present invention.

[0031]In a cylindrical filter structure, one end of the cylindrical filter structure from which the discharge enters is completely open, and the other end of the cylindrical filter structure from which the discharge exits is partially sealed. The plurality of penetrating cells 12 are composed of sealed cells 15 and open cells 16 . All permeable cells are open at their entry ends. Half of the permeable cells are sealed at their outflow ends by sealant 14 and the remaining half of the permeable cells are open at their outflow ends. The open cells 16 and the sealed cells 15 are provided in substantially equal numbers, and the open cells may be arranged adjacent to the sealed cells so that they form a checkerboard pattern in the cross-section of the filter structure. Alternatively, the open cells may be arranged in a circle around the center of the filter structu...

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Abstract

Disclosed is a particulate collecting filter structure for a diesel engine. The filter structure includes a plurality of through cells axially and regularly arranged therein. The through cells are partitioned by thin cell walls. Half of the through cells are sealed by a sealant at outflow ends thereof, and the remaining half of the through cells are opened at outflow ends thereof. The filter structure is provided in the diesel engine to solve conventional problems caused by pressure loss. It is possible to avoid the problems in which operating conditions and fuel consumption efficiency are worsened, convenience of operation is reduced, and, at worst, operation of the engine is stopped, because overstrain is applied to the mechanically controlled diesel engine.

Description

technical field [0001] Generally, the present invention relates to a diesel engine particulate filter structure, and more particularly, to a diesel engine particulate filter structure comprising a ceramic sintered body that minimizes pressure drop. Background technique [0002] In recent years, in proportion to the rapid increase in the number of automobiles, the amount of emissions from internal combustion engines of automobiles has also increased significantly. In particular, various substances contained in exhaust from diesel engines become sources of pollution and exert a very adverse influence on the global environment. Additionally, it has been reported that particulates in the excretion (diesel particles) may cause allergies and lower sperm counts. Therefore, the removal of particles in effluent has become a very urgent research goal. The term "particulate" (hereinafter referred to as "PM") as used herein is a general term for carbon-containing particles, sulfur-con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/021B01D46/24B01J23/40B01J35/04F01N3/022
CPCB01D46/247B01J23/40B01J35/04F01N3/0222F01N2330/06Y02T10/12B01D46/2496B01D46/249B01D46/2492F01N3/021B01D46/2455
Inventor 韩贤植裴宰皓李泰旴
Owner HEESUNG ENGELHARD CORP
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