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Purifying and silencing two-in-one motorcycle silencer

A technology for mufflers and motorcycles, applied in mufflers, machines/engines, engine components, etc., can solve the problems of inability to attenuate, insufficient muffling, and inability to obtain muffling effects, achieving good muffling effects and improving safety. Effect

Inactive Publication Date: 2018-05-01
陶智军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The feature of this structure is that the noise reduction frequency range is wide, but the noise reduction amount is insufficient, and at the same time, it cannot attenuate some noise peak frequencies, so a better noise reduction effect cannot be obtained.

Method used

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  • Purifying and silencing two-in-one motorcycle silencer
  • Purifying and silencing two-in-one motorcycle silencer
  • Purifying and silencing two-in-one motorcycle silencer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment one: see figure 1 , figure 2 As shown, a two-in-one motorcycle muffler for purification and noise reduction includes an exhaust pipe 1, a muffler cylinder 2 and a tailpipe 3, the inner space of the muffler cylinder 2 is a muffler chamber, and the muffler chamber is equipped with There are three baffles 20, namely the first baffle, the second baffle and the third baffle, and the first, second and third baffles divide the anechoic chamber into four chambers arranged in sequence from front to back Chamber 21, respectively the first, second, third and fourth chambers, wherein,

[0041] An installation hole is provided on the first partition, and the rear end of the exhaust pipe 1 is a rear catalyst 4, which extends into the second chamber through the installation hole.

[0042] A first mesh plate is arranged in the second chamber, and the first mesh plate, the second partition plate and the muffler cylinder 2 are surrounded to form a first resonant cavity 22, ...

Embodiment 2

[0050] Embodiment two: if image 3 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that: the rear end cover of the first communicating pipe 23 is provided with a first muffler cover 27, and the rear end cover of the second communicating pipe 25 A second sound-absorbing cover 28 is provided, and a plurality of ventilation holes are provided on the first and second sound-absorbing covers.

Embodiment 3

[0051] Embodiment three: as Figure 4 , Figure 5 As shown, the structure of this embodiment is basically the same as that of Embodiment 2, the difference is that: the rear end cover of the muffler cylinder 2 is provided with a tail cover 7, and the connection between the muffler cylinder 2 and the tail cover 7 A drainage chamber is provided, and a drainage hole 8 is provided at the bottom of the drainage chamber.

[0052] In the present invention, resonant cavities are arranged in the second, third and fourth chambers, the noise elimination frequency range is wide, the noise elimination amount is sufficient, and certain noise peak frequencies can be attenuated to obtain better noise elimination effect.

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Abstract

The invention discloses a purifying and silencing two-in-one motorcycle silencer which comprises an exhaust pipe, a silencer cylinder and a tail pipe, wherein the interior space of the silencer cylinder is a silencing cavity; a first partition board, a second partition board and a third partition board are arranged in the silencing cavity and divide the silencing cavity into a first cavity, a second cavity, a third cavity and a fourth cavity sequentially arranged front to back; a first resonant cavity is formed in the second cavity; a second resonant cavity is formed in the third cavity; and athird resonant cavity is formed in the fourth cavity. According to the purifying and silencing two-in-one motorcycle silencer, the resonant cavities are formed in the second, third and fourth cavities, so that the silencing frequency band is wider, the silencing capacity is high, and certain noise peak frequency can be damped to obtain a better silencing effect.

Description

technical field [0001] The invention relates to a muffler, in particular to a two-in-one purifying and muffler motorcycle muffler. Background technique [0002] Motor vehicle noise is an important source of urban noise pollution and one of the main control objects of environmental protection work. In order to reduce the noise pollution of motor vehicles, various countries have formulated strict regulations to limit the noise of vehicles including motorcycles. With the implementation of motorcycle noise regulation GB4569-2000, a considerable number of domestic motorcycles will be withdrawn from the market because the noise level cannot meet the standard. [0003] A motorcycle muffler is a device that allows airflow to pass through and attenuates noise, and is one of the important parts on a motorcycle. The performance of the muffler not only affects the noise of the motorcycle, but also has a great influence on the performance of the engine, such as power, fuel consumption,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N1/02F01N1/04F01N13/14F01N3/28F01N13/00F01N13/08
CPCF01N1/026F01N1/04F01N3/28F01N3/2885F01N13/007F01N13/08F01N13/14F01N2590/04
Inventor 陶智军
Owner 陶智军
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