CN207004602U - The new main muffler of automobile using - Google Patents

Abstract

The utility model discloses the new main muffler of automobile using,The front end face of the housing,First partition,Corresponding first through hole is offered respectively on second partition and the 3rd dividing plate,Fixation is set in the first through hole air inlet pipe respectively,The leading section of the air inlet pipe passes from the front end face of housing,The rearward end of air inlet pipe is located in the 4th surge chamber,In the first partition,Second partition,The second corresponding through hole is offered respectively on the rear end face of 3rd dividing plate and housing,Fixation is set in the second through hole the blast pipe respectively,The leading section of the blast pipe is located in the first surge chamber,The rearward end of blast pipe passes from the rear end face of housing,The first bloop is offered in the air inlet pipe in the first surge chamber,The second bloop in row is offered in the air inlet pipe in the second surge chamber,The utility model advantage is：Noise is greatly reduced, serves good erasure effect.

Description

The new main muffler of automobile using

Technical field

The technical field of muffler is the utility model is related to, is led more particularly to the technology of automobile using muffler Domain.

Background technology

Mobile muffler is mounted in the back segment of automobile exhaust pipe, for reducing noise caused by automobile engine work Part.Common mobile muffler is mainly made up of main muffler and secondary silencer on the market at present, common on the market at present Main muffler be broadly divided into two kinds of resistive muffler and resistant noise-reducing device, resistive muffler mainly utilizes sound-absorbing porous material To reduce noise, but this kind of silencer is preferable to the noise erasure effect of medium-high frequency, poor to low frequency noise erasure effect, and The predominantly middle low frequency noise of the noise of engine, therefore be not to be very suitable for being used as mobile muffler.Resistant noise-reducing device is to pass through The muffling units such as the parts such as pipeline, dividing plate composition expansion chambers, make sound wave that reflection and interference occur when propagating, and reduce acoustic energy and reach To noise elimination purpose, and common resistant noise-reducing device structure design is not very rationally, to cause erasure effect not to be on the market at present It is very good.

Utility model content

The purpose of this utility model be exactly in order to solve above-mentioned deficiency and to provide one kind simple in construction, it is reasonable in design, disappear Audio fruit is good, can substantially reduce the new main muffler of automobile using of automobile engine noise.

In order to solve the above-mentioned technical problem technical solution that the utility model uses is as follows：

The new main muffler of automobile using, it mainly include housing, air inlet pipe, blast pipe, first partition, second partition and 3rd dividing plate, the first partition, second partition and the 3rd dividing plate are respectively and fixedly installed in housing, enclosure interior are separated into First surge chamber, the second surge chamber, the 3rd surge chamber and the 4th surge chamber, in the front end face of the housing, first partition, second Corresponding first through hole is offered on dividing plate and the 3rd dividing plate respectively, fixation is set in the first through hole to the air inlet pipe respectively Interior, the leading section of the air inlet pipe passes from the front end face of housing, and the rearward end of air inlet pipe is located in the 4th surge chamber, described One dividing plate, second partition, the 3rd dividing plate and housing rear end face on offer the second corresponding through hole, the blast pipe respectively Fixation is set in the second through hole respectively, and the leading section of the blast pipe is located in the first surge chamber, and the rearward end of blast pipe is from shell The rear end face of body is passed, and the first bloop is offered in the air inlet pipe in the first surge chamber, positioned at the second surge chamber The second bloop in row is offered in interior air inlet pipe, notch is offered in the air inlet pipe in the 3rd surge chamber, The 3rd bloop in row is offered on the blast pipe in the second surge chamber, in the first partition, second partition and the The 4th bloop is also offered on three dividing plates respectively.

It also includes paired pole, and paired supported hole, the paired pole are offered on the second partition Fixation is set in paired supported hole respectively, and its both ends is respectively and fixedly installed in first partition and the 3rd dividing plate.

First bloop is made up of 1 ~ 2 row, and the second bloop is made up of 9 ~ 15 rows, and the 3rd bloop is by 3 ~ 6 row's structures Into.

The beneficial effect that the utility model can be reached using above-mentioned technical solution is：Pass through first partition, second Enclosure interior is separated into the first surge chamber, the second surge chamber, the 3rd surge chamber and the 4th surge chamber by dividing plate and the 3rd dividing plate, and Open up the first bloop, the second bloop and notch respectively in air inlet pipe, the 3rd bloop is opened up on blast pipe, first The 4th bloop is opened up respectively on dividing plate, second partition and the 3rd dividing plate, so as to entering air-flow and sound wave progress in housing Fully buffering, reflection and interference, so as to greatly reduce noise, serve good erasure effect.

Brief description of the drawings

Fig. 1 is cross section structure diagram of the present utility model；

Fig. 2 is Fig. 1 A-A cross section structure diagrams.

Embodiment

As shown in Fig. 1 and Fig. 2, the new main muffler of automobile using, it mainly include housing 1, air inlet pipe 2, blast pipe 3, First partition 4, second partition 5, the 3rd dividing plate 6 and pole 20, the first partition 4, the dividing plate 6 of second partition 5 and the 3rd are distinguished It is fixedly mounted in housing 1, the first surge chamber 7, the second surge chamber 8, the 3rd surge chamber 9 and the 4th will be separated into inside housing 1 Surge chamber 10, offered respectively on the front end face 11 of the housing 1, first partition 4, the dividing plate 6 of second partition 5 and the 3rd relative The first through hole 12 answered, fixation is set in the first through hole 12 air inlet pipe 2 respectively, and the leading section of the air inlet pipe 2 is from shell The front end face 11 of body 1 passes, and the rearward end of air inlet pipe 2 is located in the 4th surge chamber 10.In the first partition 4, second partition 5th, the second corresponding through hole 14 is offered on the rear end face 13 of the 3rd dividing plate 6 and housing 1 respectively, the blast pipe 3 is solid respectively Surely it is set in the second through hole 14, the leading section of the blast pipe 3 is located in the first surge chamber 7, and the rearward end of blast pipe 3 is from housing 1 rear end face 13 passes.The first bloop 15 is offered in the air inlet pipe 2 in the first surge chamber 7, slow positioned at second The second bloop 16 in row is offered in the air inlet pipe 2 rushed in room 8, is opened up in the air inlet pipe 2 in the 3rd surge chamber 9 There is notch 17.The 3rd bloop 18 in row, first noise reduction are offered on the blast pipe 3 in the second surge chamber 8 Hole is made up of 1 ~ 2 row, and the second bloop is made up of 9 ~ 15 rows, and the 3rd bloop is made up of 3 ~ 6 rows, in the first partition 4, The 4th bloop 19 is also offered respectively on two dividing plates 5 and the 3rd dividing plate 6.Paired branch is offered on the second partition 5 Hole 21 is supportted, fixation is set in paired supported hole 21 pole 20 in pairs respectively, and its both ends is respectively and fixedly installed to the On one dividing plate 4 and the 3rd dividing plate 6.

Air-flow and sound wave enter in housing 1 with engine exhaust from air inlet pipe 2, and wherein sub-fraction air-flow and sound wave is from the One bloop 15 enters in the first surge chamber 7, and a part of air-flow and sound wave enter in the second surge chamber 8 from the second bloop 16, Most of air-flow and sound wave enter in the 3rd surge chamber 9 from notch 17, and remainder air-flow and sound wave enter the 4th surge chamber 10 It is interior, pass sequentially through the 4th of the 3rd dividing plate 6, second partition 5 and first partition 4 into the air-flow in the 4th surge chamber 10 and sound wave Bloop 19 enters the 3rd surge chamber 9, in the second surge chamber 8 and the first surge chamber 7, and respectively from the first bloop 15, second Bloop 16 and notch 17 enter the first surge chamber 7, the second surge chamber 8 and air-flow in the 3rd surge chamber 9 and sound wave is done Relate to, then enter blast pipe 3 from the leading section of blast pipe 3, and housing 1 is discharged from the rearward end of blast pipe 3, passing through blast pipe Fraction and sound wave enter in the second surge chamber 8 from the 3rd bloop 18 when 3, further reduce noise.

Claims (3)

1. the new main muffler of automobile using, it is characterised in that：It mainly include housing, air inlet pipe, blast pipe, first partition, Second partition and the 3rd dividing plate, the first partition, second partition and the 3rd dividing plate are respectively and fixedly installed in housing, by housing Inside is separated into the first surge chamber, the second surge chamber, the 3rd surge chamber and the 4th surge chamber, front end face in the housing, Corresponding first through hole is offered on one dividing plate, second partition and the 3rd dividing plate respectively, fixation places the air inlet pipe respectively In the first through hole, the leading section of the air inlet pipe passes from the front end face of housing, and the rearward end of air inlet pipe is positioned at the 4th buffering Interior, it is logical to offer corresponding second respectively on the rear end face of the first partition, second partition, the 3rd dividing plate and housing Hole, fixation is set in the second through hole the blast pipe respectively, and the leading section of the blast pipe is located in the first surge chamber, blast pipe Rearward end passed from the rear end face of housing, the first bloop is offered in the air inlet pipe in the first surge chamber, in place In offering the second bloop in row in the air inlet pipe in the second surge chamber, opened in the air inlet pipe in the 3rd surge chamber Provided with notch, the 3rd bloop in row is offered on the blast pipe in the second surge chamber, in the first partition, the The 4th bloop is also offered respectively on two dividing plates and the 3rd dividing plate.

2. the new main muffler of automobile using according to claim 1, it is characterised in that：It also includes paired pole, Paired supported hole is offered on the second partition, fixation is set in paired supported hole the pole in pairs respectively, Its both ends is respectively and fixedly installed in first partition and the 3rd dividing plate.

3. the new main muffler of automobile using according to claim 1 or 2, it is characterised in that：First bloop is by 1 ~ 2 Row is formed, and the second bloop is made up of 9 ~ 15 rows, and the 3rd bloop is made up of 3 ~ 6 rows.