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Water absorption silencer

A muffler and water absorption technology, applied in the direction of mufflers, machines/engines, engine components, etc., can solve problems such as unsatisfactory muffler effect, large noise irregularities, and difficulty in absorbing low-frequency noise, and achieve superior muffler effects

Inactive Publication Date: 2011-12-14
胡洪霞
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For resistive mufflers, the absorption of sound waves by the sound-absorbing cotton is mainly realized by the friction and heat generation of the sound-absorbing cotton itself, that is, the sound energy is converted into the internal energy of the sound-absorbing cotton. Since the temperature of the sound-absorbing cotton cannot rise too high, its The degree of friction is limited, so the sound absorption capacity is also relatively limited, and the noise cannot be quickly weakened, and it is even difficult to absorb low-frequency noise; It is difficult to design the size of the anechoic cavity that can perfectly meet the interference conditions of various wavelengths, so the anechoic effect is not ideal

Method used

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0019] exist figure 1 In the shown embodiment, the water absorption muffler includes an outer cavity 1, a sound-absorbing floating cavity 4, an air intake pipe 2, and an exhaust pipe 3;

[0020] The air inlet pipe 2 and the exhaust pipe 3 are arranged on both sides of the outer cavity 1, and there are three sound-absorbing floating chambers 4, the inner surface of which is covered with sound-absorbing cotton 41, and the passage between each of the sound-absorbing floating chambers 4 The high temperature resistant rubber hose 40 is connected in series with the intake pipe 2 and the exhaust pipe 3;

[0021] Water is filled between the sound-absorbing floating chamber 4 and the outer chamber 1;

[0022] In the above-mentioned water-absorbing muffler, the muffler floating chamber 4 is made of high-temperature-resistant plastic;

[0023] In the above-mentioned water...

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Abstract

The invention provides a water absorption silencer which is used in various engines. The water absorption silencer comprises an outer cavity, at least one sound attenuation floating cavity, an air inlet pipe and an exhaust pipe, wherein the air inlet pipe and the exhaust pipe are arranged at two sides of the outer cavity, sound attenuation cotton covers the inner surfaces of the sound attenuation floating cavities, and the sound attenuation floating cavities are communicated with the air inlet pipe and the exhaust pipe after serially connected; and water bodies are filled between the sound attenuation floating cavities and the outer cavity. The water absorption silencer can ensure that noise flow enters inside and then is rapidly weakened in noise energy, and has better sound attenuation on various frequencies of noise.

Description

Technical field [0001] The present invention relates to a muffler, in particular, to a water absorption muffler for various engines. Background technique [0002] During the exhaust process of the engine, the gas rushes out of the exhaust port quickly. Due to the great difference between the pressure and speed and the outside air, it will generate huge noise. Therefore, it is generally necessary to install a muffler to reduce the noise. [0003] The current mufflers mainly include resistive mufflers and resistive mufflers. The main principle of the resistive muffler is to use the sound-absorbing cotton to absorb the sound waves, so as to achieve the sound-absorbing effect; Reflection and interference, thereby gradually weakening the sound intensity. [0004] For resistive mufflers, the absorption of sound waves by the sound-absorbing cotton is mainly realized by the frictional heat generation of the sound-absorbing cotton itself, that is, the sound energy is converted into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N1/20F01N13/00
Inventor 胡洪霞
Owner 胡洪霞
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