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car muffler

A muffler, automobile technology, applied in the direction of mufflers, machines/engines, mechanical equipment, etc., to achieve the effect of convenient tuning and avoiding noise pollution

Active Publication Date: 2019-03-01
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned problems in the existing technology, and proposes a muffler for automobiles. The technical problem solved by the present invention is how to make the exhaust volume of the automobile exhaust pipe adaptively adjusted according to different vehicle conditions so as to meet the needs of use. The demand can also avoid the purpose of causing noise pollution to the environment

Method used

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Examples

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Effect test

Embodiment 1

[0020] The muffler of this automobile comprises housing 3, cavity 31, upper chamber 31a, lower chamber 31b, movable sound insulation board 4, guide hole 41, spring 5, metal shrapnel 6, fixed sound insulation board 7, vent hole 71, give way hole 72.

[0021] Specifically, the automobile includes an exhaust pipe column one 1 communicated with the outlet of the automobile engine and an exhaust pipe column two 2 communicated with the outside world, and the exhaust pipe column one 1 and the exhaust pipe column two 2 are connected through a muffler. The gas in the exhaust pipe column one 1 enters the exhaust pipe column two 2 through the muffler, and then is discharged to the outside by the exhaust pipe column two 2 . Such as figure 1 As shown, the muffler includes a cylindrical housing 3 with a cavity 31 , and a movable sound insulation board 4 is slidably connected to the housing 3 . The movable sound insulation board 4 divides the cavity 31 into an upper cavity 31a and a lower ...

Embodiment 2

[0024] The technical solution in this embodiment is basically the same as the technical solution in Embodiment 1, the difference is that, as figure 2 As shown, in this embodiment, the elastic member is a wave-shaped metal shrapnel 6, one end of the metal shrapnel 6 is fixed on the lower surface of the movable sound insulation board 4, and the other end of the metal shrapnel 6 is fixed on the bottom of the lower chamber 31b.

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Abstract

The invention provides an automobile silencer, and belongs to the technical field of automobiles. The automobile silencer solves the problem about how to adjust the exhaust volume of an automobile exhaust pipe according to different automobile conditions in an adaptation manner. An automobile comprises a first exhaust pipe column communicated with the air outlet end of an automobile engine and a second exhaust pipe column communicated with the outside. The first exhaust pipe column and the second exhaust pipe column are connected through the silencer. The silencer comprises a cylindrical shell. A cavity is formed in the shell. A movable sound isolation plate is in sliding connection in the shell. The cavity is divided into an upper cavity body and a lower cavity body through the movable sound isolation plate. The air outlet end of the first exhaust pipe column and the air inlet end of the second exhaust pipe column are both located in the lower cavity body. An elastic piece is fixedly connected between the lower surface of the movable sound isolation plate and the bottom of the lower cavity body. According to the silencer, by means of the exhaust amount of the exhaust pipe columns, the exhaust volume of the automobile can be adjusted according to the different automobile conditions in the adaptation manner, so that the using requirements of consumers for the exhaust volume are met, and the noise pollution to the environment is avoided.

Description

technical field [0001] The invention belongs to the technical field of automobiles and relates to a muffler for automobiles. Background technique [0002] The automobile exhaust system is located at the bottom of the vehicle, connecting the engine outlet and the atmosphere. Its main function is to discharge the exhaust gas generated by the engine, purify the exhaust gas, and reduce noise. Its structure is mainly composed of three-way catalytic converter, pipe, rubber lifting lug, muffler and so on. During the exhaust process of the automobile 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] For example, the Chinese patent [Application No.: 201310391008.0; Application Publication No.: CN 103452623A] discloses a muffler, including a housing, and the housing is provided with a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N1/00F01N13/00
Inventor 刘锋徐州雷
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD