Low-noise damping exhaust silencer

An exhaust muffler, low-noise technology, applied in muffler devices, machines/engines, engine components, etc., can solve the problems of environmental pollution, high noise, and large vibration of the muffler, and achieves reduced noise pollution, simple and compact structure, and increased manufacturing. cost effect

Inactive Publication Date: 2014-05-07
TIANJIN QIXING PRECISION MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Low-noise damping exhaust silencer

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Example Embodiment

[0016] The attached drawing is a schematic structural diagram of the present invention. As shown in the figure, the low-noise damping exhaust muffler of this embodiment includes a housing 11, an intake pipe 13, an expansion cavity 4, and an exhaust pipe 16, and the expansion cavity 4 A damping plate 2 that is slidably fitted with the wall of the expansion chamber 4 in the longitudinal direction is arranged opposite to the outlet of the intake pipe 13. The damping plate 2 is located on the side opposite to the outlet of the intake pipe 13 and is provided with a damping spring 3; the exhaust pipe 16 passes through the damping plate 2 and its sliding fit;

[0017] It also includes a movable partition 5 with a penetrating resonance through hole 6, the inlet pipe 13 and the exhaust pipe 16 respectively pass through the movable partition 5, the outlet of the inlet pipe 13 and the inlet of the exhaust pipe 16. On both sides of the row of movable partitions 5, the movable partitions 5 ar...

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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...

Claims

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Application Information

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IPC IPC(8): F01N1/16F01N1/02
Inventor 李洪建
Owner TIANJIN QIXING PRECISION MACHINERY
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