Low-noise damping exhaust silencer

Abstract

The invention discloses a low-noise damping exhaust silencer. The low-noise damping exhaust silencer comprises a housing, an intake pipe, an expansion chamber and an exhaust pipe, and also a series of damping structures such as a movable separator with penetrating resonance through hole, wherein the front end face of the housing is in smooth transition with the sidewalls of the housing. The low-noise damping exhaust silencer is provided with a damping plate-movable separator combined structure, so that when the engine operates, the size of the intake space can be changed through two-way expansion of the damping plate and the movable separator when the exhaust pipe of the silencer exhausts gas, and simultaneously, the front end face of the housing is in smooth transition with the sidewalls of the housing so that adverse early noise caused by gas shock can be avoided, and moreover, the running noise of the engine can be further reduced and the vibration of the silencer can be reduced, and noise pollution caused by the operation of the engine is greatly reduced. The low-noise damping exhaust silencer is simple and compact without increase in the manufacturing cost.

Description

technical field [0001] The invention relates to a general mechanical component, in particular to an engine exhaust system component. Background technique [0002] The engine generates power through the deflagration of oil, so there will be a lot of noise during operation; especially for general-purpose engines, because it is easy to use, it can be used in any occasion that requires power and has strong adaptability; in practice, For residential areas where residential areas are relatively concentrated, road maintenance, etc., the engine plays an irreplaceable role. However, in the prior art, the control of the noise is not successful, causing the surrounding residents to be troubled by the noise, affecting the surrounding environment and causing serious environmental pollution. [0003] In order to solve the above problems, the existing engine exhaust system adopts a conventional muffler structure. Although it has a certain noise reduction effect, the noise is still relativ...

AI Technical Summary

Problems solved by technology

However, in the prior art, the control of noise is not successful, causing surrounding residents to suffer from noise disturbance, affecting the surrounding environment, and causing serious environmental pollution.

[0003] In order to solve the above problems, the existing engine exhaust system adopts a conventional muffler structure. Although it has a certain noise reduction effect, the noise is still relatively large, especially as the speed increases. At the same time, the muffler is caused by the exhaust frequency. The vibration is also relatively large, so it can be seen that the existing muffler cannot effectively improve the noise pollution caused by the engine operation to the environment

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