CN208486964U - Muffler and engine - Google Patents

Abstract

The utility model relates to technical field of engines, more particularly, to a kind of muffler and engine.Muffler includes shell, the first pipeline and the second pipeline, and multiple partitions with holes are arranged in enclosure interior, and the inner cavity of shell is divided into multiple cavities by multiple partitions；First pipeline extend into enclosure interior from the first side of shell, and sequentially passes through multiple partitions, and the second pipeline extend into enclosure interior from second side of shell；Multiple first through hole are arranged in the side wall of the first pipeline between two partitions, and multiple second through-holes are arranged on the second pipeline.Engine includes above-mentioned muffler.The utility model solves technical problem undesirable to high frequency noise noise elimination effect in the prior art.

Description

Muffler and engine

Technical field

The utility model relates to technical field of engines, more particularly, to a kind of muffler and engine.

Background technique

Engine be it is a kind of can the machine that can be converted into mechanical energy of other forms, including as internal combustion engine, external-combustion engine, Motor etc..If internal combustion engine is usually that chemical energy is converted into mechanical energy.Engine is not only suitable for power generating apparatus, also can refer to Entire machine including power device.A wherein important component of the gas handling system as engine accessory system, mainly Function is as much as possible and as homogeneously as possible to the gaseous mixture of cylinder supply air and fuel oil.In order to improve the seating of passenger Experience, vehicle designers generate structure for different noises and optimize to reduce the output of noise, and gas handling system is exactly wherein One part.

Existing gas handling system is all made of silencer, but muffler mainly uses pipeline section expansion and cross-sectional constriction Resistance exhaust silencer structure, using sound wave due to the variation of acoustic reactance at the abrupt change of cross-section, some sound wave is reflected to sound source It goes back, without the outlet by silencer, to achieve the purpose that noise elimination.It is this resistance exhaust silencer centering, low-frequency Silencing noise effect is preferable, but not satisfactory for high frequency noise noise elimination effect.

The information disclosed in the background technology section is intended only to deepen the reason to the general background technology of the utility model Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form Technology.

Utility model content

The first of the utility model is designed to provide a kind of muffler, solves and disappears in the prior art to high frequency noise The undesirable technical problem of sound effective value.

Muffler provided by the utility model, comprising: shell, the first pipeline and the second pipeline, the enclosure interior setting The inner cavity of the shell is divided into multiple cavities by multiple partitions with holes, multiple partitions；

First pipeline extend into the enclosure interior from the first side of the shell, and sequentially pass through it is multiple it is described every Plate, second pipeline extend into the enclosure interior from second side of the shell；

Multiple first through hole, second pipeline is arranged in the side wall of first pipeline between two partitions Upper multiple second through-holes of setting.

In any of the above-described technical solution, further, positioned at an end seal of first pipeline of the enclosure interior Setting is closed, positioned at the setting closed at one end of second pipeline of the enclosure interior.

In any of the above-described technical solution, further, the enclosure interior is provided with third pipeline, the third pipeline Through the two neighboring partition, and the third pipeline is located at same chamber with first pipeline for being provided with first through hole Body.

In any of the above-described technical solution, further, multiple third through-holes are arranged in the side wall of the third pipeline.

In any of the above-described technical solution, further, the shell two sides are provided with detachable end.

In any of the above-described technical solution, further, the partition is set as at least two.

In any of the above-described technical solution, further, when the partition is set as three, three partitions will be described Shell is divided into four cavitys.

In any of the above-described technical solution, further, close to the first pipeline import partition be located in the middle Multiple first through hole are arranged in the first pipeline side wall between partition；

The second pipeline side wall setting multiple the between the partition and the end cap of second tube outlet Two through-holes；

The partition of the close first pipeline import and the third pipeline side wall being located in the middle between partition are arranged Multiple third through-holes.

In any of the above-described technical solution, further, noise reduction is provided on the inner wall of the shell and the partition Layer.

The second of the utility model is designed to provide a kind of engine, solves and disappears in the prior art to high frequency noise The undesirable technical problem of sound effective value.

Engine provided by the utility model, comprising: muffler described above.

Compared with the existing technology, muffler and engine provided by the utility model have the advantage that

Muffler provided by the utility model, comprising: shell, the first pipeline and the second pipeline, enclosure interior setting are multiple The inner cavity of shell is divided into multiple cavities by partition with holes, multiple partitions；First pipeline extend into described from the first side of shell Enclosure interior, and multiple partitions are sequentially passed through, the second pipeline extend into the enclosure interior from second side of shell；Positioned at two Multiple first through hole are arranged in the side wall of the first pipeline between partition, and multiple second through-holes are arranged on the second pipeline.In use, making an uproar Sound enters shell by the first pipeline, is then discharged by the second tube body；Due to the setting of the first through hole on the first pipeline, energy So that sound is entered inside cavity, realize level-one expansion, eliminate in part, low frequency noise, at the same the transformation in noise direction with And the vibration friction in first through hole, part high-frequency noise can be eliminated；Then sound enters other chambers by partition with holes Second level expansion can be achieved after body, eliminated in part again, low frequency noise, simultaneously because sound and partition with holes shake and rub, Part high-frequency noise is eliminated again；Sound obtains noise well repeatedly to the noise elimination of high frequency by repeatedly steering and through-hole It eliminates；Therefore the utility model solves technical problem undesirable to high frequency noise noise elimination effect in the prior art.

Engine provided by the utility model, including above-mentioned muffler.Due to the setting of muffler, so starting equipment Have all advantages of above-mentioned muffler, can eliminate in, low, high frequency noise, solve and disappear in the prior art to high frequency noise The undesirable technical problem of sound effective value.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of muffler provided by the embodiment of the utility model；

Fig. 2 is the schematic diagram of internal structure of muffler provided by the embodiment of the utility model；

Fig. 3 is the sectional view of muffler provided by the embodiment of the utility model；

Fig. 4 is the structural schematic diagram of the third partition of muffler provided by the embodiment of the utility model.

Icon:

100- shell；The first pipeline of 200-；The second pipeline of 300-；400- third pipeline；

The 4th cavity of 101-；102- third partition；103- third cavity；104- second partition；The second cavity of 105-；106- First partition；The first cavity of 107-；108- end cap.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.

Embodiment one

As shown in Figs 1-4, muffler provided in this embodiment, including shell 100, the first pipeline 200 and the second pipeline 300；Multiple partitions with holes are set inside shell 100, and the inner cavity of shell 100 is divided into multiple cavities by multiple partitions；First pipe Road 200 is extend into inside shell 100 from the first side of shell 100, and sequentially passes through multiple partitions, and the second pipeline 300 is from shell 100 second side is extend into inside shell 100；The side wall setting multiple first of the first pipeline 200 between two partitions Multiple second through-holes are arranged on the second pipeline 300 in through-hole.

Have in design, original muffler mainly uses the resistance exhaust silencer of pipeline section expansion and cross-sectional constriction Structure, using sound wave due to the variation of acoustic reactance at the abrupt change of cross-section, some sound wave is reflected back to sound source, without by disappearing The outlet of sound device, to achieve the purpose that noise elimination；This resistance exhaust silencer centering, low-frequency silencing noise effect compared with It is good, but it is not satisfactory for high frequency noise noise elimination effect.And muffler provided in this embodiment passes through on the first pipeline The setting of first through hole can make sound enter inside cavity, realize level-one expansion, eliminate in part, low frequency noise, simultaneously The transformation in noise direction and vibration friction in first through hole, can eliminate part high-frequency noise；Then sound passes through with holes Partition enter other cavitys after can be achieved second level expansion, again eliminate part in, low frequency noise, simultaneously because sound with it is with holes Partition shake friction, again eliminate part high-frequency noise.

Specifically, the setting closed at one end for the first pipeline 200 being located inside shell 100, therefore sound can only be by the One through-hole enters cavity；The setting closed at one end of the second pipeline 300 inside shell 100, the sound after noise reduction can only lead to It crosses the second through-hole to enter in second pipe, then be discharged by second pipe.

Further, shell 100 is internally provided with third pipeline 400, and third pipeline 400 runs through two neighboring partition, and Third pipeline 400 and the first pipeline 200 for being provided with first through hole are located at same cavity, third pipeline 400 improve cavity it Between erasure effect.

Further, multiple third through-holes are arranged in the side wall of third pipeline 400, can change the transformation of audio direction with And vibration friction, part high-frequency noise can be eliminated.

It should be noted that 100 two sides of shell are provided with detachable end 108；The disassembly of muffler can be facilitated, side Just the internal structure of muffler is replaced.

It should be noted that sound is brought into inside muffler by air-flow.

It should also be noted that, the second pipeline 300 is protruded into from second side of shell 100, and multiple partitions are sequentially passed through, it will The purpose that long reason is arranged in second pipeline 300 is can to alleviate the pressure of air-flow.

In the present embodiment optinal plan, partition is set as at least two.

When partition is set as three, three partitions divide shell 100 for four cavitys；Wherein close to the first pipeline import Partition and the first pipeline side wall for being located in the middle between partition multiple first through hole are set；Close to second tube outlet every Multiple second through-holes are arranged in the second pipeline side wall between plate and end cap；Close to the first pipeline import partition be located in the middle Multiple third through-holes are arranged in third pipeline side wall between partition.

It should be noted that three partitions include first partition 106, second partition 104 and third partition 102, four chambers Body includes the first cavity 107, the second cavity 105, third cavity 103 and the 4th cavity 101；And it is located at first partition 106 and the Multiple first through hole are arranged in 200 side wall of the first pipeline between two partitions 104；Positioned at first partition 106 and second partition 104 it Between 400 side wall of third pipeline multiple third through-holes are set；Second pipe side between third partition 102 and end cap 108 Multiple second through-holes are arranged in wall.

Specifically, it is provided with muffle coating on inner walls and partition, part high-frequency noise can be sponged, further Improve erasure effect.

Further, flared tube is provided on second partition 104, sound can enter third cavity 103 by flared tube In, second level expansion is carried out to gas.

It should be noted that sound passes through after sound enters 100 inside of shell by the first pipeline 200 with air-flow First through hole is diffused into the second cavity 105, realizes level-one expansion, is eliminated in part, low frequency noise, while turn in noise direction Become and first through hole vibration friction, part high-frequency noise can be eliminated；Then pass through first partition 106 and second respectively Hole on partition 104 enters the first cavity 107 and third cavity 103, carries out second level expansion, while the first cavity 107 to gas After internal sound carries out noise reduction, it can also enter the second cavity 105；Simultaneously because the third pipeline with third through-hole is set It sets, erasure effect can be further increased；When sound by repeatedly turn to and repeatedly eliminate the noise after, finally by third with holes every Plate 102 carries out last expansion into the 4th cavity 101, and then greatly improves erasure effect.

In conjunction with can be seen that muffler provided in this embodiment, including shell to the detailed description of the utility model above 100, the first pipeline 200 and the second pipeline 300, the inner wall of shell 100 are provided with noise reduction layer；Multiple bands are set inside shell 100 The inner cavity of shell 100 is divided into multiple cavities by the partition in hole, multiple partitions；First pipeline 200 is protruded into from the first side of shell 100 To inside shell 100, and multiple partitions are sequentially passed through, the second pipeline 300 is extend into shell 100 from second side of shell 100 Portion；Multiple first through hole are arranged in the side wall of the first pipeline 200 between two partitions, are arranged on the second pipeline 300 multiple Second through-hole.In use, noise enters shell 100 by the first pipeline 200, then it is discharged by the second tube body；Due to first The setting of first through hole on pipeline 200 can make sound enter inside cavity, realize level-one expansion, eliminate in part, is low Frequency noise, while the transformation in noise direction and the vibration friction in first through hole, can eliminate part high-frequency noise；Then sound Sound is entered after other cavitys by partition with holes can be achieved second level expansion, be eliminated in part again, low frequency noise, simultaneously because Sound and partition with holes, which shake, to rub, and eliminates part high-frequency noise again；Sound is by repeatedly steering and through-hole repeatedly to height The noise elimination of frequency, eliminates noise well；Again due to being provided with noise reduction layer on 100 inside of shell, so further mentioning The erasure effect of high muffler；Therefore the utility model solves undesirable to high frequency noise noise elimination effect in the prior art Technical problem.

Embodiment two

Engine provided in this embodiment, comprising: above-mentioned muffler.

Engine provided in this embodiment, including above-mentioned muffler.Due to the setting of muffler, so engine has All advantages of above-mentioned muffler, can eliminate in, low, high frequency noise, solve in the prior art to high frequency noise eliminate the noise The undesirable technical problem of effect.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is practical new in this Within the scope of type and form different embodiments.For example, in claims above, embodiment claimed It is one of any can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen Understanding to the general background technology of the utility model, and be not construed as recognizing or implying in any form that the information is constituted The prior art known to those skilled in the art.

Claims (10)

1. a kind of muffler, comprising: shell, the first pipeline and the second pipeline, which is characterized in that the enclosure interior setting is multiple The inner cavity of the shell is divided into multiple cavities by partition with holes, multiple partitions；

First pipeline extend into the enclosure interior from the first side of the shell, and sequentially passes through multiple partitions, Second pipeline extend into the enclosure interior from second side of the shell；

Multiple first through hole are arranged in the side wall of first pipeline between two partitions, set on second pipeline Set multiple second through-holes.

2. muffler according to claim 1, which is characterized in that positioned at the one of first pipeline of the enclosure interior End seal closes setting, positioned at the setting closed at one end of second pipeline of the enclosure interior.

3. muffler according to claim 1, which is characterized in that the enclosure interior is provided with third pipeline, and described Three pipelines run through the two neighboring partition, and the third pipeline is located at together with first pipeline for being provided with first through hole One cavity.

4. muffler according to claim 3, which is characterized in that it is logical that multiple thirds are arranged in the side wall of the third pipeline Hole.

5. muffler according to claim 4, which is characterized in that the shell two sides are provided with detachable end.

6. muffler according to claim 5, which is characterized in that the partition is set as at least two.

7. muffler according to claim 6, which is characterized in that when the partition is set as three, three partitions The shell is divided into four cavitys.

8. muffler according to claim 7, which is characterized in that close to the first pipeline import partition and be located at Between partition between the first pipeline side wall multiple first through hole are set；

The second pipeline side wall setting multiple second between the partition and the end cap of second tube outlet is logical Hole；

The partition of the close first pipeline import and the third pipeline side wall setting being located in the middle between partition are multiple Third through-hole.

9. muffler according to claim 1-8, which is characterized in that on the inner wall of the shell and the partition It is provided with noise reduction layer.

10. a kind of engine characterized by comprising the described in any item mufflers of claim 1-9.