CN210686099U

CN210686099U - Improved automobile exhaust silencer

Info

Publication number: CN210686099U
Application number: CN201921460825.6U
Authority: CN
Inventors: 邓克喜
Original assignee: Suzhou Shida Tongtai Automobile Components Co ltd
Current assignee: Suzhou Shida Tongtai Automobile Components Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-05
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses an improved automobile exhaust silencer, which comprises a silencer cylinder, and an air inlet pipe and an exhaust pipe which are respectively connected with the two ends of the silencer cylinder; the inside of muffler barrel is equipped with the cavity, be equipped with first baffle in the cavity, the second baffle, first pipe and second pipe, first expansion room is separated into with the cavity to first baffle and second baffle, second expansion room and third expansion room, first expansion room, second expansion room and third expansion room are arranged along the axial of muffler barrel in proper order, the one end and the first expansion room intercommunication of intake pipe, the one end of blast pipe runs through second baffle and second expansion room intercommunication, first baffle and second baffle are worn to locate by first pipe, the both ends of first pipe communicate with first expansion room and third expansion room respectively, the second baffle is worn to locate by the second pipe, the both ends of second pipe communicate with second expansion room and third expansion room respectively. The utility model relates to an automobile exhaust muffler of improvement, its is rational in infrastructure, and noise cancelling effect is good.

Description

Improved automobile exhaust silencer

Technical Field

The utility model relates to an automobile exhaust muffler of improvement.

Background

At present, with the progress of automobile manufacturing technology, the number of automobiles is greatly increased every year, the influence brought by automobile exhaust exceeds the advantages brought by the automobile exhaust, such as convenience, rapidness and the like, and researches show that harmful waste gas exhausted by one car every year is 3 times heavier than the own weight, and automobile exhaust gas forms a main pollution source of air pollution. And people are concerned about the pollution caused by the automobile exhaust and also are concerned about the noise problem in the running process of the automobile. The muffler of the automobile exhaust system can be divided into three types, namely a reactive muffler, a resistive muffler and an impedance composite muffler according to principles and structures. However, the automobile silencer on the market at present is complex in structure, inconvenient to install and general in silencing effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile exhaust muffler of improvement, its is rational in infrastructure, and noise cancelling effect is good.

In order to achieve the purpose, the technical scheme of the utility model is to design an improved automobile exhaust silencer, which comprises a silencer cylinder, an air inlet pipe connected with one end of the silencer cylinder, and an exhaust pipe connected with the other end of the silencer cylinder; the utility model discloses a silencer, including silencer barrel, first baffle, second baffle, first pipe and second pipe, first baffle and second baffle are equipped with the cavity in the inside of silencer barrel, are equipped with first baffle, second baffle, first pipe and second pipe in this cavity, first baffle and second baffle separate into first expansion room, second expansion room and third expansion room with the cavity, first expansion room, second expansion room and third expansion room are arranged in proper order along the axial of silencer barrel, the one end and the first expansion room intercommunication of intake pipe, the one end of blast pipe runs through second baffle and second expansion room intercommunication, first baffle and second baffle are worn to locate by first pipe, and the both ends of this first pipe communicate with first expansion room and third expansion room respectively, the second pipe is worn to locate the second baffle, and the both ends of this second pipe communicate with second expansion room and third expansion room respectively.

Preferably, a protective cover is sleeved outside the silencer cylinder.

Preferably, the protection cover comprises a protection cover cylinder, and a plurality of heat dissipation holes are formed in the outer wall of the protection cover cylinder.

Preferably, the outer wall of the protective cover cylinder body is further provided with a plurality of cooling fins.

Preferably, the plurality of cooling fins are arranged along the axial direction of the protective cover cylinder body at equal intervals, and the cooling fins are arranged along the circumferential direction of the protective cover cylinder body.

The utility model has the advantages and the beneficial effects that: the improved automobile exhaust silencer has reasonable structure and good silencing effect. When the expansion silencer is used, noise generated by exhaust enters the first expansion chamber from the air inlet pipe along with airflow to be expanded and silenced, then the airflow enters the third expansion chamber through the first guide pipe to be expanded and silenced again, then the airflow enters the second expansion chamber through the second guide pipe to be expanded and silenced again, and finally the exhaust is exhausted through the exhaust pipe. Moreover, the muffler cylinder can be effectively protected by arranging the protective cover; in addition, through setting up louvre and fin, be favorable to promoting the radiating effect of protection casing barrel.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The utility model discloses the technical scheme who specifically implements is:

as shown in fig. 1, an improved automobile exhaust muffler comprises a muffler cylinder 1, an air inlet pipe 2 connected to one end of the muffler cylinder 1, and an air outlet pipe 3 connected to the other end of the muffler cylinder 2; a cavity is arranged in the silencer cylinder body 1, a first partition plate 4, a second partition plate 5, a first conduit 6 and a second conduit 7 are arranged in the cavity, the first partition plate 4 and the second partition plate 5 divide the cavity into a first expansion chamber 8, a second expansion chamber 9 and a third expansion chamber 10, the first expansion chamber 8, the second expansion chamber 9 and the third expansion chamber 10 are arranged in sequence along the axial direction of the silencer cylinder 1, one end of the air inlet pipe 2 is communicated with a first expansion chamber 8, one end of the exhaust pipe 3 penetrates through a second partition plate 5 to be communicated with a second expansion chamber 9, the first conduit 6 penetrates through the first partition plate 4 and the second partition plate 5, the two ends of the first conduit 6 are respectively communicated with the first expansion chamber 8 and the third expansion chamber 10, the second conduit 7 is arranged through the second partition plate 5, and the two ends of the second conduit 7 are respectively communicated with the second expansion chamber 9 and the third expansion chamber 10.

The silencer cylinder 1 is externally sleeved with a protective cover.

The protective cover comprises a protective cover cylinder 11, and a plurality of heat dissipation holes 12 are formed in the outer wall of the protective cover cylinder 11.

The outer wall of the protective cover cylinder 11 is also provided with a plurality of radiating fins 13.

The plurality of radiating fins 13 are arranged at equal intervals along the axial direction of the protective cover cylinder 11, and the single radiating fin 13 is arranged along the circumferential direction of the protective cover cylinder 11.

The utility model has the advantages and the beneficial effects that: the improved automobile exhaust silencer has reasonable structure and good silencing effect. When the exhaust muffler is used, noise generated by exhaust enters the first expansion chamber 8 from the air inlet pipe 2 along with air flow to be expanded and muffled, then the air flow enters the third expansion chamber 10 through the first guide pipe 6 to be expanded and muffled again, then the air flow enters the second expansion chamber 9 through the second guide pipe 7 to be expanded and muffled again, and finally the air flow is exhausted through the exhaust pipe 3. Moreover, the muffler cylinder 1 can be effectively protected by arranging the protective cover; in addition, through setting up louvre 12 and fin 13, be favorable to promoting the radiating effect of protection casing barrel 11.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An improved automobile exhaust muffler comprises a muffler cylinder, an air inlet pipe connected to one end of the muffler cylinder, and an exhaust pipe connected to the other end of the muffler cylinder, and is characterized in that a cavity is arranged in the muffler cylinder, a first partition plate, a second partition plate, a first conduit and a second conduit are arranged in the cavity, the cavity is divided into a first expansion chamber, a second expansion chamber and a third expansion chamber by the first partition plate and the second partition plate, the first expansion chamber, the second expansion chamber and the third expansion chamber are sequentially arranged along the axial direction of the muffler cylinder, one end of the air inlet pipe is communicated with the first expansion chamber, one end of the exhaust pipe penetrates through the second partition plate and is communicated with the second expansion chamber, the first conduit penetrates through the first partition plate and the second partition plate, two ends of the first conduit are respectively communicated with the first expansion chamber and the third expansion chamber, and the second conduit penetrates through the second partition plate, the two ends of the second conduit are respectively communicated with the second expansion chamber and the third expansion chamber.

2. The improved automobile exhaust muffler according to claim 1, wherein a protective cover is sleeved on the outside of the muffler cylinder.

3. The improved automotive exhaust muffler according to claim 2, wherein said shroud comprises a shroud cylinder having a plurality of louvers in an outer wall thereof.

4. The improved automobile exhaust muffler according to claim 3, wherein a plurality of fins are further provided on the outer wall of the shield cylinder.

5. The improved automobile exhaust muffler according to claim 4, wherein the plurality of fins are arranged at equal intervals in an axial direction of the shroud cylinder, and a single fin is disposed in a circumferential direction of the shroud cylinder.