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A technology of engine and muffler, which is applied in the direction of engine components, machines/engines, noise reduction devices, etc. It can solve the problems that the working principle does not change much, the sound absorption and noise reduction effect is not obvious, and the sound waves cannot be effectively removed, etc., to achieve good sound absorption effect , change the effect of singleness
Active Publication Date: 2019-09-24
泉州市知产茂业工业设计有限公司
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[0002] The muffler is a device installed on the airflow channel of the aerodynamic equipment or in the intake and exhaust system to reduce noise. Its function is to absorb the strong noise generated by the exhaust gas, so as to eliminate and reduce the impact of noise on the environment. There are many types of mufflers. However, the structure and working principle of these mufflers have not changed much, and they often cannot effectively remove the sound waves in various frequency bands in the noise, resulting in insignificant sound absorption and noise reduction effects. In view of this, we propose a new type of muffler for engines
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] see Figure 1-3 , the present invention provides a technical solution: a novel muffler for an engine, comprising a cavity 1, an outer casing 2, an inner wall 3, a glass fiber cotton 4, an intake pipe 5, a damping orifice 6, a first chamber 7, a first Partition 8, central partition 9, second chamber 10, air duct 11, micro-perforated plate 12, peak sound-absorbing sponge 13, second partition 14, third chamber 15, porous expanded perlite layer 16, closed-c...
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Abstract
The invention discloses a novel silencer for an engine. The novel silencer comprises a cavity, an outer shell, an inner wall, glass fiber cotton, an air inlet pipe, a damping hole plate, a first cavity, a first partition, a center partition, a second cavity, an air guiding pipe, a micro perforated plate, wave crest sound absorption sponge, a second partition, a third cavity, a porous expansion perlite layer, a closed hole type foam plastic layer, a porous asbestos cement plate layer, an air outlet pipe, micro through holes and micro small holes. The cavity comprises the outer shell and the inner wall. The cavity is internally provided with the damping hole plate, the first partition, the second partition, the first cavity, the second cavity and the third cavity. According to the novel silencer for the engine, simplicity of the noise reduction theory and method adopted by existing noise reduction equipment is changed, the beneficial effects of damping noise reduction, resistance noise reduction, micro perforated plate noise reduction and small hole noise reduction are integrated, the low frequency sound wave, the intermediate frequency sound wave, the high frequency sound wave and the ultrahigh frequency sound wave in noise can be effectively absorbed, pollution caused by noise is reduced to the maximum degree, and the health of the human body is protected.
Description
technical field [0001] The invention relates to the field of mufflers, in particular to a novel muffler for engines. Background technique [0002] The muffler is a device installed on the airflow channel of the aerodynamic equipment or in the intake and exhaust system to reduce noise. Its function is to absorb the strong noise generated by the exhaust gas, so as to eliminate and reduce the impact of noise on the environment. There are many types of mufflers. However, the structure and working principle of these mufflers have not changed much, and they often cannot effectively remove the sound waves in various frequency bands in the noise, resulting in insignificant sound absorption and noise reduction effects. In view of this, we propose a new type of muffler for engines. Contents of the invention [0003] The object of the present invention is to provide a novel muffler for an engine to solve the problems raised in the above-mentioned background technology. [0004] In o...
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