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.