CN202493318U - Waste gas purifying silencer for lightweight car - Google Patents

Abstract

The utility model discloses an exhaust gas purifying muffler for light-duty automobiles, which comprises a cylindrical muffler pipe, two ends of the muffler pipe are provided with sealing covers, three muffler chambers are arranged inside the muffler pipe, and air intake pipes are arranged at both ends of the muffler pipe. And the air outlet pipe, the air intake pipe and the air outlet pipe pass through three anechoic chambers, and the mouth stretches out to seal the cover. The beneficial effects of the utility model are: a purifying muffler of a different size can be selected according to engines of different displacements, or a plurality of purifying mufflers of the same size can be used in parallel; , the water filtration purification effect is basically the same, the service life is long, the operating cost is low, and the purification effect is good; it not only saves energy, but also reduces environmental pollution, has a large amount of noise attenuation, and a small power loss ratio, meeting the national emission and noise limit requirements.

Description

Exhaust gas purification muffler for light-duty vehicles

technical field

The utility model relates to a muffler, in particular to an exhaust gas purifying muffler for light vehicles, which belongs to the field of auto parts.

Background technique

At present, with the continuous improvement of living standards, the number of motor vehicles is increasing, and the pollution of motor vehicle exhaust to the atmosphere is becoming more and more serious, especially in large and medium-sized cities. one. At present, the existing exhaust muffler mainly adopts the resistant exhaust muffler structure of pipe cross-section expansion and cross-section contraction. Due to the change of acoustic reactance at the sudden change of the section of the sound wave, part of the sound wave is reflected back to the sound source without passing through the muffler. Export, so as to achieve the purpose of noise reduction, but when this type of muffler is applied to miniature vehicles, it has the disadvantage that it cannot effectively eliminate individual high-noise frequency components.

Utility model content

Aiming at the deficiencies in the existing technology, the technical problem to be solved by the utility model is to provide a light-duty automobile exhaust gas purification muffler, which is environmentally friendly, has good noise reduction effect, good purification effect, simple structure, convenient use, and reduces production cost. .

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is that an exhaust gas purifying muffler for light-duty automobiles includes a cylindrical muffler pipe, sealing covers are arranged at both ends of the muffler pipe, and three muffler chambers are arranged inside the muffler pipe. , the two ends of the muffler pipe are provided with an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe pass through three anechoic chambers, and the mouth stretches out to the sealing cover; the air inlet pipe is connected to the exhaust gas purification device, and the exhaust gas purification device includes a purification chamber , both ends of the purification chamber are provided with an exhaust gas inlet and an exhaust gas outlet, and the exhaust gas outlet is connected to the intake pipe; the middle part of the purification chamber is provided with a partition, and the exhaust gas inlet is connected to the space below the partition through a pipeline. Distributed gas ports.

Optimally, the above-mentioned exhaust gas purification muffler for light-duty vehicles has a number of air holes in the air intake pipes inside the three mufflers.

Optimally, the exhaust gas purifying muffler for light-duty vehicles is provided with a number of air holes at the positions inside the three muffler chambers.

Optimally, the above-mentioned exhaust gas purification muffler for light vehicles is provided with a metal mesh at the mouth of the outlet pipe.

The beneficial effects of the utility model are: a purifying muffler of a different size can be selected according to engines of different displacements, or a plurality of purifying mufflers of the same size can be used in parallel; , the water filtration purification effect is basically the same, the service life is long, the operation cost is low, and the purification effect is good; it not only saves energy, but also reduces environmental pollution, has a large amount of noise reduction, and a small power loss ratio, meeting the national emission and noise limit requirements.

Description of drawings

Below in conjunction with accompanying drawing and embodiment thereof the utility model is described in further detail:

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, the utility model is an exhaust gas purifying muffler for light vehicles, which includes a cylindrical muffler pipe 1, sealing covers 2 are arranged at both ends of the muffler pipe 1, and three muffler chambers 11 are arranged inside the muffler pipe 1. , the two ends of the muffler pipe 1 are provided with an air inlet pipe 12 and an air outlet pipe 13, the air inlet pipe 12 and the air outlet pipe 13 pass through three anechoic chambers 11, and the mouth stretches out to the sealing cover 2; the air inlet pipe 12 is connected to the exhaust gas purification device 3. The exhaust gas purification device 3 includes a purification chamber 31, the two ends of the purification chamber 31 are provided with an exhaust gas inlet 32 and an exhaust gas outlet 33, and the exhaust gas outlet 33 is connected to the intake pipe 12; the middle part of the purification chamber 31 is provided with a partition 34 The exhaust gas inlet 32 is connected to the space under the partition 34 through pipelines, and the partition 34 is provided with a number of evenly distributed gas ports 35 . The air intake pipe 12 is provided with several air holes 14 at positions inside the three anechoic chambers 11 . The air outlet pipe 13 is provided with several air holes 14 at positions inside the three anechoic chambers 11 . The mouth of the air outlet pipe 13 is provided with a metal mesh 15 . The beneficial effects of the utility model are: a purifying muffler of a different size can be selected according to engines of different displacements, or a plurality of purifying mufflers of the same size can be used in parallel; , the water filtration purification effect is basically the same, the service life is long, the operation cost is low, and the purification effect is good; it not only saves energy, but also reduces environmental pollution, has a large amount of noise reduction, and a small power loss ratio, meeting the national emission and noise limit requirements.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples. Those of ordinary skill in the art can make changes, modifications, additions or replacements within the essential scope of the present utility model. All should belong to the protection scope of the present utility model.

Claims (4)

1. A light-duty automobile exhaust gas purification muffler, comprising a cylindrical silencing pipe, is characterized in that: the two ends of the silencing pipe are provided with sealing covers, the inside of the silencing pipe is provided with three silencing chambers, and the two ends of the silencing pipe are provided with The inlet pipe and the outlet pipe, the inlet pipe and the outlet pipe pass through three anechoic chambers, and the mouth protrudes to the sealing cover; the inlet pipe is connected to the exhaust gas purification device, and the exhaust gas purification device includes a purification chamber, and the two ends of the purification chamber are provided with Exhaust gas inlet and exhaust gas outlet, the exhaust gas outlet is connected to the intake pipe; the middle part of the purification chamber is provided with a partition, the exhaust gas inlet is connected to the space below the partition through pipelines, and several evenly distributed air ports are arranged on the partition. 2. The exhaust gas purification muffler for light vehicles according to claim 1, characterized in that: the air intake pipe is provided with a number of air holes at the positions inside the three mufflers. 3. The exhaust gas purifying muffler for light-duty vehicles according to claim 1, characterized in that: the outlet pipe is provided with a number of air holes at the positions inside the three mufflers. 4. The exhaust gas purification muffler for light vehicles according to claim 1, characterized in that: the mouth of the outlet pipe is provided with a metal mesh.

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