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Trapezoidal exhaust gas filter

An exhaust filter, trapezoidal technology, applied in exhaust devices, machines/engines, mufflers, etc., can solve problems such as environmental pollution, muffler sheets are easy to loosen and fall off, and cannot effectively filter black smoke particles, etc., to increase the contact area, The effect of improving the exhaust gas purification effect

Inactive Publication Date: 2017-03-08
华玉娣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

[0034] see Figure 1-5 , the present invention relates to a trapezoidal exhaust gas filter, which includes a filter box 1, a filter screen 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 filter screen 2 and ceramic honeycomb The carrier 3 is arranged in the filter box 1, and the filter screen 2 is close to the exhaust gas inlet 4. The filter box 1 includes a first arc edge 1.1, a second arc edge 1.2, a first hypotenuse 1.3 and a second hypotenuse 1.4, The first arc side 1.1, the second hypotenuse 1.4, the second arc side 1.2 and the first hypotenuse 1.3 are connected end to end in sequence, and the joints adopt rounded transitions. The shape of the ceramic honeycomb carrier 3 is similar to that 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 th...

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Abstract

The invention relates to a trapezoidal exhaust gas filter. The trapezoidal exhaust gas filter comprises a filter box (1), wherein a filter net (2) and a ceramic honeycomb carrier (3) are arranged in the filter box (1), a silencing pipe (7) is arranged in the filter box (1), and a branch pipe (8) with holes in the wall is arranged on the silencing pipe (7). According to the trapezoidal exhaust gas filter, by the two-stage filtering of the filter net and the ceramic honeycomb carrier, exhaust gas mainly comprising CO, HC and NOx reacts to form CO2, H2O, N2 and O2; at the same time, tiny holes in partition walls can effectively filter black smoke particles in waste gas, and the black smoke particles are burnt under the action of a catalyst coating, so that the exhaust gas purifying effect is further improved; and besides, the silencing effect of the filter is great.

Description

technical field [0001] The invention relates to a trapezoidal exhaust gas filter, which is used for purifying automobile exhaust gas. 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, provi...

Claims

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Application Information

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IPC IPC(8): F01N3/033F01N3/035F01N3/04F01N3/08
Inventor 华玉娣
Owner 华玉娣
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