CN202108562U

CN202108562U - Exhaust muffler

Info

Publication number: CN202108562U
Application number: CN2011201886083U
Authority: CN
Inventors: 姜夏冰
Original assignee: WUWI HONGHU MUFFLER CO Ltd
Current assignee: WUWI HONGHU MUFFLER CO Ltd
Priority date: 2011-06-07
Filing date: 2011-06-07
Publication date: 2012-01-11
Anticipated expiration: 2021-06-07

Abstract

The utility model discloses an exhaust muffler. The exhaust muffler comprises a cylinder body, a gas inlet end cover plate and a gas outlet end cover plate, wherein the gas inlet end cover plate and the gas outlet end cover plate are arranged at two ends of the cylinder body. Two core pipes are parallelly arranged in the cylinder body along the axial direction of the cylinder body; and three separating disks are arranged in the cylinder body along the axial direction of the cylinder body, so that the inside of the cylinder body is separated into four cavity bodies, wherein one end of a second core pipe is connected with the gas outlet end cover plate, and the other end of the second core pipe sequentially passes through a first separating disk, a second separating disk and a third separating disk and then is arranged corresponding to the gas inlet end cover plate; and one end of a first core pipe is connected with the gas inlet end cover plate, and the other end of the first core pipe sequentially passes through the third separating disk, the second separating disk and the first separating disk and then is arranged corresponding to the gas outlet end cover plate. According to the utility model, a gas flow flows into the first core pipe through a gas inlet pipe; part of the gas flow flows into a cavity body I through a small hole group (1) on the core pipe; part of gas flows into a resistive muffling cavity body II through a small hole group (2) on the core pipe; and further part of the gas flows into a cavity body III through a hole group (3) and then flows into a cavity body IV. The gas flows into through a plurality of groups of small holes on the core pipe 2 and finally flows out of the muffler.

Description

A kind of exhaust silencer

Technical field

The utility model relates to vehicle, relates in particular to the vent systems of automobile, particularly a kind ofly is used for petrolic exhaust silencer.

Background technique

The effect of automotive muffler is the noise that reduces engine producing, reduces vibration, improves the travelling comfort that automobile uses; The protection environment, the structure of silencing apparatus is in the middle of the silencer cylinder core body pipe to be arranged in the existing technology, core body pipe two ends connect steam outlet pipe and suction tude respectively; Suction tude is connected inlet flange more respectively and gives vent to anger flange with steam outlet pipe, is uniformly distributed with circular hole on the core body pipe, and air communication is crossed circular hole turnover core body pipe; Flow each other, collide and reduce acoustic energy, but the core body pipe is single in the existing technology, the air current flow collisional quenching is little; Thereby cause sound deadening capacity little, low-frequency noise is bigger, influences the travelling comfort of car load.

The model utility content

The utility model purpose is to the defective that existing technology exists a kind of exhaust silencer to be provided.

The utility model adopts following technological scheme for realizing above-mentioned purpose:

A kind of exhaust silencer of the utility model; The inlet end cover plate and the outlet side cover plate that comprise cylindrical shell and be arranged at the cylindrical shell two ends; In cylindrical shell along drum shaft to being set up in parallel two core pipes; And to three separated dishes are set barrel is divided into four cavitys along drum shaft in the cylindrical shell, wherein an end of the second core pipe is connected with the outlet side cover plate, and the other end passes first, second and the 3rd corresponding setting with the inlet end cover plate behind dish successively; One end of the first core pipe is connected with the inlet end cover plate, and the other end passes the 3rd, second, first successively at a distance from the dish corresponding setting with the outlet side cover plate in back.

The second core pipe along the circumferential direction evenly is provided with a plurality of apertures at outlet side cover plate and first on the core pipe between the dish.

The second core pipe along the circumferential direction evenly is provided with a plurality of apertures at a distance from dish and second first on the core pipe between the dish.

The first core pipe along the circumferential direction evenly is provided with a plurality of apertures at inlet end cover plate and the 3rd on the core pipe between the dish.

The said first core pipe along the circumferential direction evenly is provided with a plurality of apertures at a distance from dish and second the 3rd on the core pipe between the dish.

Around the said aperture sleeve pipe is set, the cotton of eliminating the noise is set between sleeve pipe and the aperture.

The said first core pipe along the circumferential direction evenly is provided with a plurality of apertures at a distance from dish and first second on the core pipe between the dish.

The utility model air-flow flows into two core pipes, and in four Seal cages back and forth in the process of flowing, air-flow bumps against, and produces friction with pipe fitting, attenuating acoustic energy, thereby reducing noise.

Description of drawings

Fig. 1: the utility model structural drawing.

Embodiment

As shown in Figure 1; A kind of exhaust silencer; The inlet end cover plate 10 and outlet side cover plate 1 that comprise cylindrical shell 2 and be arranged at cylindrical shell 2 two ends axially are set up in parallel two core pipes 4,5 along cylindrical shell 2 cylindrical shell 2 in, and axially are provided with three along cylindrical shell 2 in the cylindrical shell 2 and at a distance from coiling 3,6,9 cylindrical shell 2 inside are divided into four cavitys; Wherein an end of the second core pipe 5 is connected with outlet side cover plate 1, and the other end passes first, second and the 3rd separated dish 3,6,9 back and the 10 corresponding settings of inlet end cover plate successively; One end of the first core pipe 4 is connected with inlet end cover plate 10, and the other end passes the 3rd, second, first successively at a distance from dish 9,6,3 backs and the 1 corresponding setting of outlet side cover plate.

The second core pipe 5 along the circumferential direction evenly is provided with a plurality of apertures at outlet side cover plate 1 and first on the core pipe between the dish 3.

The second core pipe 5 along the circumferential direction evenly is provided with a plurality of apertures at a distance from dish 3 and second first on the core pipe between the dish 6.

The first core pipe 4 along the circumferential direction evenly is provided with a plurality of apertures at inlet end cover plate 10 and the 3rd on the core pipe between the dish 9.

The said first core pipe 4 along the circumferential direction evenly is provided with a plurality of apertures at a distance from dish 9 and second the 3rd on the core pipe between the dish 6.

Around the said aperture sleeve pipe 7 is set, is provided with between sleeve pipe 7 and the aperture and eliminates the noise cotton 8.

The said first core pipe 4 along the circumferential direction evenly is provided with a plurality of apertures at a distance from dish 6 and first second on the core pipe between the dish 3.

The utility model working principle: air inlet is got into by an end of the first core pipe 4; The aperture and the other end through its setting gets into four cavitys respectively; In the airtight cavity of inlet end cover plate 10 and the 3rd separated dish 9 formations; Through the second core pipe 5 get into first at a distance from dish 3, second in the cavity that dish 6 and outlet side cover plate 1 constitute and discharge silencing apparatus; The first core pipe 4 adopts sleeve pipes 7 cotton 8 to eliminate noises with eliminating the noise, and the second core pipe 5 is discharged gas in gas and other cavity through the aperture of its setting and interfered and eliminated noise.

Claims

1. exhaust silencer; The inlet end cover plate (10) and the outlet side cover plate (1) that comprise cylindrical shell (2) and be arranged at cylindrical shell (2) two ends; It is characterized in that in cylindrical shell (2), axially being set up in parallel two core pipes (4,5) along cylindrical shell (2); And along cylindrical shell (2) three separated dishes (3,6,9) are set axially in the cylindrical shell (2) cylindrical shell (2) inside is divided into four cavitys; Wherein an end of the second core pipe (5) is connected with outlet side cover plate (1), and the other end passes first, second and the 3rd separated dish (3,6,9) back and the nearly corresponding setting of gas end casing (10) successively; One end of the first core pipe (4) is connected with outlet side cover plate (10), and the other end passes the 3rd, second, first successively at a distance from dish (9,6,3) back and the corresponding setting of outlet side cover plate (1).

2. a kind of exhaust silencer according to claim 1 is characterized in that the second core pipe (5) is positioned at outlet side cover plate (1) and first and on the core pipe between the dish (3), along the circumferential direction evenly is provided with a plurality of apertures.

3. a kind of exhaust silencer according to claim 1 is characterized in that the second core pipe (5) is positioned at first and on the core pipe between the dish (3) and the second separated dish (6), along the circumferential direction evenly is provided with a plurality of apertures.

4. a kind of exhaust silencer according to claim 1 is characterized in that the first core pipe (4) is positioned at inlet end cover plate (10) and the 3rd and on the core pipe between the dish (9), along the circumferential direction evenly is provided with a plurality of apertures.

5. a kind of exhaust silencer according to claim 4 is characterized in that the said first core pipe (4) is positioned at the 3rd and on the core pipe between the dish (9) and the second separated dish (6), along the circumferential direction evenly is provided with a plurality of apertures.

6. a kind of exhaust silencer according to claim 4 is characterized in that around the said aperture sleeve pipe (7) being set, and eliminate the noise cotton (8) are set between sleeve pipe (7) and the aperture.

7. a kind of exhaust silencer according to claim 4 is characterized in that the said first core pipe (4) is positioned at second and on the core pipe between the dish (6) and the first separated dish (3), along the circumferential direction evenly is provided with a plurality of apertures.