CN207538895U - A kind of novel automobile muffler - Google Patents

Abstract

The utility model discloses a kind of novel automobile mufflers, including air inlet end cap and cylinder, the inlet end, which covers, is installed with air inlet pipe, and the middle part of the air inlet pipe, which is run through, to be equipped with every disk, cylinder is divided into first chamber and second chamber, the outlet side, which covers, is installed with air outlet pipe.The utility model automotive muffler, inner barrel is divided by two chambers every disk using list, silencer cylinder Integral back is pressed with to be declined, bigger cavity volume can improve the low frequency performance muffler of silencer, reduce the pulsation performance of gas, the structure of chamber sound-absorbing material is not provided in inner barrel, it avoids sound-absorbing material and fills uneven the phenomenon that causing performance muffler unstable, air-flow every the venthole on disk by flowing into each chamber, the maximum sound deadening capacity of silencer can be improved, the macropore that at least one aperture is 10 20mm is set in addition, gas is made to be spread when passing through silencer evenly, the present apparatus is simple in structure, cost is lower.

Description

A kind of novel automobile muffler

Technical field

The utility model is related to automotive muffler technical field, specially a kind of novel automobile muffler.

Background technology

Common automotive muffler on the market at present.Since automobile chassis is compact, silencer installation site is limited, silencer The volume of cylinder is also relatively small, to obtain good erasure effect, has a kind of automobile suitable for automobile with small output volumn to disappear at present Sound device, the automotive muffler include being equipped with the noise elimination cylinder into air outlet pipe, the inner space of the noise elimination cylinder along airintake direction by Two are divided into first chamber, second chamber and third chamber every disk.Silencing cotton is provided in second chamber.In inner barrel It is provided with the intermediate tube of connection first chamber and third chamber.This automotive muffler has the following problems in use： For the fixed silencer of volume, if every disk that cylinder is separated by two, each divided cavity volume is smaller；Cylinder Internal portion is set as with inner tube structure, although relatively small by pressing, low frequency order noise is relatively preferable.But for high frequency order The noise reduction of noise is then the silencing cotton that is set by second chamber come noise reduction, and often will appear causes to disappear because silencing cotton filling is uneven The phenomenon that sound performance is unstable.Not only noise elimination effect is poor, but also when engine works, and air-flow is by being equipped with the second chamber of silencing cotton During room, silencing cotton constantly absorbs the vapor in air-flow, and for a long time, moist silencing cotton can corrode cylinder and every disk.Cause Noise elimination cylinder service life shortens.In addition, for for automobile with small output volumn, noise elimination inner barrel is complicated, relative into This is higher.

Utility model content

The purpose of this utility model is to provide a kind of novel automobile mufflers, have the characteristics that noise elimination effect is good, solve The problems of the prior art.

To achieve the above object, the utility model provides following technical solution：A kind of novel automobile muffler, including air inlet End cap and cylinder, one end of the cylinder are installed with air inlet end cap, and the inlet end, which covers, is installed with air inlet pipe, institute The middle part of air inlet pipe is stated through being equipped with every disk, described every being provided with macropore on disk, described every being additionally provided with venthole on disk, institute The middle part for being located at cylinder every disk is stated, cylinder is divided into first chamber and second chamber, the air inlet pipe is located at first chamber First through hole is provided on section tubular wall, the air inlet pipe, which is located on the section tubular wall of second chamber, is provided with the second through-hole, institute The other end for stating cylinder is installed with outlet end cap, and the outlet side, which covers, is installed with air outlet pipe, and the air outlet pipe is passed through It wears every disk.

Preferably, the cylinder is formed by double-deck 0.6mm steel plates eyelet, and cylinder is used with air inlet end cap and outlet end cap Flanging process connects.

Preferably, the outlet end cap edge is provided with 3mm apertures.

Preferably, the tail end plugs of the air inlet pipe.

Preferably, the second number of openings is 2 times of first through hole quantity in the air inlet pipe.

Compared with prior art, the beneficial effects of the utility model are as follows：

Inner barrel is divided into two chambers, first chamber and the second chamber by the utility model automotive muffler using list every disk Room can be pressed with silencer cylinder Integral back and be declined, and make each single chamber volume separated every disk relatively large, more Big cavity volume can improve the low frequency performance muffler of silencer, can also reduce the pulsation performance of gas, there is flow parameter So as to reduce the drag losses of air-flow flowing, the structure of chamber sound-absorbing material is not provided in inner barrel for sufficient balance space, It avoids sound-absorbing material and fills uneven the phenomenon that causing performance muffler unstable, and avoid sound-absorbing material water suction to lead to cylinder Corrosion and every disk corrode the phenomenon that, every being uniformly arranged venthole on disk, air-flow passes through to be flowed into respectively every these ventholes on disk Chamber equivalent to increase the divergence ratio of silencer, can improve the maximum sound deadening capacity of silencer, set at least one hole in addition Diameter is the macropore of 10-20mm, and gas is made to be spread evenly when passing through silencer, muffler volume is made more to make full use of, is made Air pulsing parameter is more stable, and the present apparatus is simple in structure, and cost is lower.

Description of the drawings

Fig. 1 is the overall structure figure of the utility model；

Fig. 2 is the utility model every disk schematic diagram.

In figure：1 air inlet end cap, 2 cylinders, 3 air outlet pipes, 4 lead to every disk, 41 macropores, 42 ventholes, 5 air inlet pipe, 51 first Hole, 52 second through-holes, 6 outlet end caps, 7 first chambers, 8 second chambers.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, a kind of novel automobile muffler, including air inlet end cap 1 and cylinder 2, cylinder 2 is by double-deck 0.6mm Steel plate eyelet forms, and cylinder 2 is connect with air inlet end cap 1 and outlet end cap 6 using flanging process, and peace is fixed in one end of cylinder 2 Equipped with air inlet end cap 1, air inlet pipe 5, the tail end plugs of air inlet pipe 5 are installed on air inlet end cap 1, the middle part of air inlet pipe 5 is passed through It wears and is equipped with every disk 4, every being provided with macropore 41 on disk 4, every being additionally provided with venthole 42 on disk 4, be located in cylinder 2 every disk 4 Cylinder 2 is divided into first chamber 7 and second chamber 8 by portion, and air inlet pipe 5, which is located on the section tubular wall of first chamber 7, is provided with One through-hole 51, air inlet pipe 5, which is located on the section tubular wall of second chamber 8, is provided with the second through-hole 52, the second through-hole 52 in air inlet pipe 5 Quantity is 2 times of 51 quantity of first through hole, and the other end of cylinder 2 is installed with outlet end cap 6, the setting of 6 edge of outlet end cap There are 3mm apertures, air outlet pipe 3 is installed on outlet end cap 6, air outlet pipe 3 runs through every disk 4, the utility model automotive muffler, uses It is single that inner barrel is divided into two chambers, first chamber 7 and second chamber 8 every disk, can be pressed with silencer cylinder Integral back Declined, and make that each single chamber volume separated every disk 4 is relatively large, and bigger cavity volume can improve silencer Low frequency performance muffler can also reduce the pulsation performance of gas, flow parameter is made to have sufficient balance space, so as to reduce air-flow The drag losses of flowing, 5 end of air inlet pipe uses closure form, and 52 quantity of the second through-hole is logical for first on 5 tube wall of air inlet pipe 2 times of 51 quantity of hole, most of air-flow that such set-up mode flows into air inlet pipe 5 pass through air inlet pipe 5 and are located at second chamber 8 The second through-hole 52 flow out, this fraction exclude silencer must by every on disk 4 venthole 42 enter first chamber 7 again It is discharged from air outlet pipe 3, can be very good to reduce part Low Medium Frequency noise every the venthole 42 on disk 4,5 two parts of air inlet pipe are opened Via area causes air flow through the outflow of 5 tube wall aperture of air inlet pipe because of 1.8-2.1 times of 5 circulation area of air inlet pipe, can replace existing There are the structure setting of filling sound-absorbing material in the intermediate cavity in technical solution, high frequency noise of maximumlly decaying, in cylinder 2 Portion is not provided with the structure of chamber sound-absorbing material, avoids sound-absorbing material and fills uneven the phenomenon that causing performance muffler unstable, And avoiding sound-absorbing material water suction causes cylinder to corrode and every disk corrodes the phenomenon that, every being uniformly arranged venthole 42, gas on disk 4 Stream, equivalent to increase the divergence ratio of silencer, can improve noise elimination by flowing into each chamber every these ventholes 42 on disk 4 The maximum sound deadening capacity of device, the macropore 41 that at least one aperture is set to be 10-20mm in addition, makes gas be spread when passing through silencer Evenly, muffler volume is made more to make full use of, makes that air pulsing parameter is more stable, and the present apparatus is simple in structure, cost is lower.

In summary：Inner barrel is divided into two chambers, first chamber by the utility model automotive muffler using list every disk 7 and second chamber 8, it can be pressed with silencer cylinder Integral back and be declined, and make each single chamber volume separated every disk 4 Relatively large, bigger cavity volume can improve the low frequency performance muffler of silencer, can also reduce the pulsation performance of gas, make Flow parameter has sufficient balance space, and so as to reduce the drag losses of air-flow flowing, chamber sound-absorbing is not provided with inside cylinder 2 The structure of material avoids sound-absorbing material and fills uneven the phenomenon that causing performance muffler unstable, and avoid sound-absorbing material Water suction causes cylinder to corrode and every disk corrodes the phenomenon that, and every being uniformly arranged venthole 42 on disk 4, air-flow passes through every on disk 4 These ventholes 42 flow into each chamber, equivalent to increase the divergence ratio of silencer, can improve the maximum sound deadening capacity of silencer, In addition the macropore 41 that at least one aperture is set to be 10-20mm, makes gas be spread evenly when passing through silencer, makes silencer Volume more makes full use of, and makes that air pulsing parameter is more stable, and the present apparatus is simple in structure, and cost is lower.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of novel automobile muffler, including air inlet end cap (1) and cylinder (2), it is characterised in that：The one of the cylinder (2) End is installed with air inlet end cap (1), and air inlet pipe (5) is installed on the air inlet end cap (1), the air inlet pipe (5) Middle part is described every being provided with macropore (41) on disk (4) through being equipped with every disk (4), described every being additionally provided with venthole on disk (4) (42), it is described every disk (4) positioned at the middle part of cylinder (2), cylinder (2) is divided into first chamber (7) and second chamber (8), institute It states air inlet pipe (5) and first through hole (51) is provided on the section tubular wall of first chamber (7), the air inlet pipe (5) is positioned at The second through-hole (52) is provided on the section tubular wall of two chambers (8), the other end of the cylinder (2) is installed with outlet end cap (6), air outlet pipe (3) is installed on the outlet end cap (6), the air outlet pipe (3) is through every disk (4).

2. a kind of novel automobile muffler according to claim 1, it is characterised in that：The cylinder (2) is by double-deck 0.6mm Steel plate eyelet forms, and cylinder (2) is connect with air inlet end cap (1) and outlet end cap (6) using flanging process.

3. a kind of novel automobile muffler according to claim 1, it is characterised in that：Outlet end cap (6) edge is set It is equipped with 3mm apertures.

4. a kind of novel automobile muffler according to claim 1, it is characterised in that：The end envelope of the air inlet pipe (5) It is stifled.

5. a kind of novel automobile muffler according to claim 1, it is characterised in that：Second is logical on the air inlet pipe (5) Hole (52) quantity is 2 times of first through hole (51) quantity.