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Exhausted gas filter

An exhaust filter and filter box technology, which is applied to exhaust devices, machines/engines, mufflers, etc., can solve the problems of easy loosening and falling off of mufflers, environmental pollution, inability to effectively filter black smoke particles, etc., to improve exhaust purification. effect, the effect of increasing the contact area

Inactive Publication Date: 2017-03-15
华玉娣
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary automobile exhaust filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to produce CO 2 and N 2 These two kinds of non-polluting gases, but the cars equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; the existing tail gas silencer is It is realized by setting the sound-absorbing sheet, but the sound-absorbing sheet is easy to loosen and fall off, and it is difficult to achieve a good sound-absorbing effect

Method used

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Embodiment Construction

[0036] see Figure 1-6 , the present invention relates to an exhaust gas filter, which comprises a filter box 1, a purifier 2 and a ceramic honeycomb carrier 3, the left end of the filter box 1 is an exhaust gas inlet 4, and the right end is an exhaust gas outlet 5, the purifier 2 and the ceramic honeycomb carrier 3 is set in the filter box 1, the ceramic honeycomb carrier 3 is close to the tail gas inlet 4, the purifier 2 is close to the tail gas outlet 5, the filter box 1 is in the shape of a round tube, and the ceramic honeycomb carrier 3 is connected to the inner wall of the filter box 1 Correspondingly, the ceramic honeycomb carrier 3 is densely covered with air holes 3.1 along the axial direction, one end of the air holes 3.1 is an opening 3.6, and the other end is provided with a sealing surface 3.2, the sealing surface 3.2 and the opening 3.6 are arranged at intervals, and the adjacent The two pores 3.1 are provided with a partition wall 3.3, and the partition wall 3.3...

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Abstract

The invention relates to an exhausted gas filter, which comprises a filter box (1). A purifier (2) and a ceramic honeycomb carrier (3) are arranged in the filter box (1), a hush pipe (7) is arranged in the filter box (1), and a branch pipe (8) with pores in the wall is arranged on the hush pipe (7). Through the two-stage filtration of the ceramic honeycomb carrier and the purifier, the exhausted gas filter makes the exhausted gas with CO, HC and NOx as major components react into CO2, H2O, N2 and O2, meanwhile, the micropores at the adjoining wall can effectively filter out black smoke particles in the exhausted gas, the black smoke particles are burned off under the effect of catalyst coating, and the effect of exhausted gas purification is further improved; meanwhile, the filter is good in noise reduction effect.

Description

technical field [0001] The invention relates to an exhaust gas filter, which is used for purifying the exhaust gas of automobiles. It belongs to the technical field of automobile equipment. Background technique [0002] At present, ordinary automobile exhaust filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to form CO 2 and N 2 These two kinds of non-polluting gases, but the cars equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; the existing tail gas silencer is It is realized by setting the sound-absorbing sheet, but the sound-absorbing sheet is easy to loosen and fall off, and it is difficult to achieve a good sound-absorbing effect. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned deficiency, provides...

Claims

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Application Information

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IPC IPC(8): F01N3/035F01N3/022F01N13/00F01N3/023
Inventor 华玉娣
Owner 华玉娣
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