CN207686792U - A kind of automobile-used impedance composite clampshell silencer - Google Patents

A kind of automobile-used impedance composite clampshell silencer Download PDF

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Publication number
CN207686792U
CN207686792U CN201721828871.8U CN201721828871U CN207686792U CN 207686792 U CN207686792 U CN 207686792U CN 201721828871 U CN201721828871 U CN 201721828871U CN 207686792 U CN207686792 U CN 207686792U
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CN
China
Prior art keywords
pipe
partition
clam shell
hole
chamber
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Expired - Fee Related
Application number
CN201721828871.8U
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Chinese (zh)
Inventor
马相雪
陈增响
吕纪威
郭鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Weifu Lida Catalytic Converter Co Ltd
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Wuxi Weifu Lida Catalytic Converter Co Ltd
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Priority to CN201721828871.8U priority Critical patent/CN207686792U/en
Application granted granted Critical
Publication of CN207686792U publication Critical patent/CN207686792U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to a kind of automobile-used impedance composite clampshell silencer, the upper piece clam shell outside silencer is vertically connected with composition clam shell with bottom sheet clam shell, and clam shell is interior to be separated into three chambers by the first and second partition boards;First bend pipe is connect with the second bend pipe, and the second bend pipe is connect with the first hole pipe, and the first hole pipe runs through the first, second partition board;U-shaped bend pipe is placed in first chamber, and first partition is run through at both ends, and wherein one end is connect with straight tube, and the other end is connect with second hole pipe one end, and the second hole pipe runs through second partition, and is connect with tail pipe;Third hole pipe runs through the first, second partition board;High frequency silencing cavity is managed by the second hole, left end cap, cylinder and right end cap are constituted;The utility model is by improving acoustic wave filter structure, acoustic attenuation performance is improved, noise elimination frequency band is widened, overcomes the shortcomings that current silencer can only eliminate Middle and low frequency noise or high-frequency noise, it realizes the control to the entire band noise of engine, vehicle noise can be controlled rational horizontal.

Description

A kind of automobile-used impedance composite clampshell silencer
Technical field
The utility model is related to a kind of silencer for automobile, especially a kind of automobile-used impedance composite clampshell silencer belongs to In gasoline engine exhaust aftertreatment technical field.
Background technology
It is gradually increased with the requirement of environmental regulation, requirement of the people to vehicle noise is also higher and higher.The row of engine Gas noise is one of Main Noise Sources of vehicle, is had for improving vehicle noise abatement level to effective control of exhaust noise Important influence.
It is the effective measures for reducing vehicle noise that exhaust silencer is installed after engine.Reactive muffler and resistance noise reduction Device is most widely used noise elimination structure in silencer, and reactive muffler applies in general to the noise of middle low-frequency range, and resistive Silencer applies in general to the noise of high band.
Under different operating modes, the entire frequency range of engine breathing noise covering from low to high is single to use resistance Silencer or dissipative muffler cannot meet the needs of reducing all band noises, and the control of vehicle Induction and exhaust noises can not be made to exist It is rational horizontal.
Invention content
The purpose of this utility model is the defect for existing silencer, provides a kind of automobile-used impedance composite clampshell Silencer, the silencer realize the control to the entire band noise of engine, make vehicle noise control rational horizontal.
For the above technical purpose of realization, the technical solution adopted in the utility model is:A kind of automobile-used impedance composite clam shell Formula silencer, the outside of the silencer include the first bend pipe, the second bend pipe, upper piece clam shell, bottom sheet clam shell and tail pipe, feature It is, the upper piece clam shell is vertically connected with composition clam shell with bottom sheet clam shell, passes through first partition and second partition in the clam shell It is separated into three chambers, respectively first chamber, second chamber and third chamber;
The air inlet of first bend pipe is connect with inlet flange, and gas outlet is connect with one end of the second bend pipe, and second is curved The other end of pipe is inserted into clam shell, and connect with one end of the first hole pipe in clam shell, and the first hole pipe runs through first partition and the Two partition boards, the other end are sealed by plug;
Further include U-shaped bend pipe, the U-shaped bend pipe is placed in first chamber, and first partition, wherein one end are run through in both ends It is connect with straight tube, the other end is connect with one end of the second hole pipe, and the other end of second hole pipe runs through second partition, and is pierced by Clam shell is connect with tail pipe;
Further include third hole pipe, the third hole pipe runs through first partition and second partition, and is placed in first chamber one end Port be connected with blanking cover;
Further include high frequency silencing cavity, the high frequency silencing cavity includes the second hole pipe, left end cap, cylinder and right end cap, described Cylinder left end is sealed by left end cap, and right end is sealed by right end cap, and left end cap and right end cap are connect with the second hole pipe, and high Frequency silencing cavity runs through second partition.
Further, the first partition and second partition are vertically connected in clam shell.
Further, the pipe end of the tail pipe is bell shape.
Further, several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture are provided in the first partition.
Further, first hole pipe is placed on first chamber and the indoor side wall of third chamber and is provided with several apertures, A diameter of 2.5mm ~ 4.5mm of the aperture.
Further, it constitutes and is provided with several apertures, the diameter of the aperture on the second hole pipe of high frequency silencing cavity side wall For 2.5mm ~ 4.5mm.
Further, third hole pipe, which is placed on the side wall in second chamber, is provided with several apertures, the aperture A diameter of 2.5mm ~ 4.5mm.
From the above, it can be seen that the utility model has technical effect that:The impedance composite freshwater mussel of the utility model Shell-type silencer improves the acoustic attenuation performance of silencer by the improvement of structure, has widened the noise elimination frequency band of silencer, has overcome Current most of silencers can only eliminate Middle and low frequency noise, or the shortcomings that can only eliminate high-frequency noise, realize whole to engine The control of a band noise can control vehicle noise rational horizontal.
Description of the drawings
Fig. 1 is that the utility model removes the structural schematic diagram after clam shell.
Fig. 2 is the part-structure schematic diagram of the utility model high frequency silencing cavity.
Fig. 3 is the structural schematic diagram of the utility model clam shell.
Reference sign:1- inlet flanges, the first bend pipes of 2-, the second bend pipes of 3-, the first holes 4- pipe, 5- plugs, 6- are straight Pipe, 7-U types bend pipe, the second holes 8- pipe, 9- left end caps, 10- cylinders, 11- right end caps, 12- tail pipes, 13- blanking covers, 14- thirds hole Pipe, 15- first partitions, 16- second partitions, upper clam shell of 17-, 18- bottom sheet clam shell, 19- first chambers, 20- second chambers and 21- third chambers.
Specific implementation mode
With reference to specific drawings and examples, the utility model is described in further detail.
With reference to the accompanying drawings shown in 1 ~ 3, a kind of automobile-used impedance composite clampshell silencer, the outside of the silencer includes the One bend pipe 2, the second bend pipe 3, upper piece clam shell 17, bottom sheet clam shell 18 and tail pipe 12, which is characterized in that upper piece clam shell 17 is under Piece clam shell 18 is vertically connected with composition clam shell, and the clam shell is interior to be separated into three chambers by first partition 15 and second partition 16, Respectively first chamber 19, second chamber 20 and third chamber 21, the first partition 15 and second partition 16 are vertically connected on In clam shell;
The air inlet of first bend pipe 2 is connect with inlet flange 1, and gas outlet is connect with one end of the second bend pipe 3, and second The other end of bend pipe 3 is inserted into clam shell, and is connect with one end of the first hole pipe 4 in clam shell, and the first hole pipe 4 runs through first partition 15 and second partition 16, the other end sealed by plug 5;
Further include U-shaped bend pipe 7, the U-shaped bend pipe 7 is placed in first chamber 19, and first partition 15 is run through at both ends, Middle one end is connect with straight tube 6, and the other end is connect with one end of the second hole pipe 8, the other end of second hole pipe 8 through second every Plate 16, and be pierced by clam shell and connect with tail pipe 12, the pipe end of the tail pipe 12 is bell shape;
Further include third hole pipe 14, third hole pipe 14 runs through first partition 15 and second partition 16, and is placed in first The port of 19 one end of chamber is connected with blanking cover 13;
Further include high frequency silencing cavity, the high frequency silencing cavity is by the second hole pipe 8,11 structure of left end cap 9, cylinder 10 and right end cap At 10 left end of the cylinder is sealed by left end cap 9, and right end is sealed by right end cap 11, and left end cap 9 and right end cap 11 are with Two hole pipes 8 connect, and high frequency silencing cavity runs through second partition 16.
Several apertures are provided in the present embodiment in first partition 15, a diameter of 2.5mm ~ 4.5mm of the aperture is described Be provided with several apertures on the side wall that first hole pipe 4 is placed in first chamber 19 and third chamber 21, the aperture it is a diameter of 2.5mm ~ 4.5mm is constituted and is provided with several apertures on the second hole pipe 8 of high frequency silencing cavity side wall, the aperture it is a diameter of 2.5mm ~ 4.5mm, is provided with several apertures on the side wall that third hole pipe 14 is placed in second chamber 20, the aperture it is straight Diameter is 2.5mm ~ 4.5mm.
The operation principle of the utility model is that the air-flow of motor exhaust is curved through the first bend pipe 2, second by inlet flange 1 Pipe 3 enters clam shell, and air-flow enters the first hole pipe 4, the first hole pipe 4 in first chamber 19 and third chamber 21 through the second bend pipe 3 On be provided with the aperture that several diameters are about 3.5mm, the pipe end of the first hole pipe 4 connects plug 5, and air-flow enters the first hole pipe 4 Afterwards, first chamber 19 and third chamber 21 are respectively enterd from the aperture on the first hole pipe 4, the gas of first chamber 19 is from passing through Aperture on one partition board 15 enters second chamber 20, and the gas in third chamber 21 is from the right end air inlet of third hole pipe 14 through Three hole pipes 14 are entered second chamber 20, and the gas in second chamber 20 enters U-shaped bend pipe 7 through straight tube 6, enter the through U-shaped bend pipe 7 Two hole pipes 8 enter high frequency silencing cavity by aperture on the second hole pipe 8, high frequency noise are eliminated by high frequency silencing cavity, finally by tail Motor exhaust is discharged pipe 12.
The utility model and embodiments thereof are described above, description is not limiting, shown in attached drawing Also it is one of the embodiment of the utility model, actual structure is not limited to this.If the ordinary skill people of this field Member is enlightened by it, without deviating from the purpose of the present invention, is not inventively designed and the technical solution Similar frame mode and embodiment, all should belong to the protection range of the utility model.

Claims (7)

1. the outside of a kind of automobile-used impedance composite clampshell silencer, the silencer includes the first bend pipe(2), the second bend pipe (3), upper piece clam shell(17), bottom sheet clam shell(18)And tail pipe(12), which is characterized in that upper piece clam shell(17)With bottom sheet clam shell (18)It is vertically connected with composition clam shell, passes through first partition in the clam shell(15)And second partition(16)Three chambers are separated into, Respectively first chamber(19), second chamber(20)With third chamber(21);
First bend pipe(2)Air inlet and inlet flange(1)Connection, gas outlet and the second bend pipe(3)One end connection, the Two bend pipes(3)The other end be inserted into clam shell in, and in clam shell the first hole manage(4)One end connection, the first hole pipe(4)Run through First partition(15)And second partition(16), the other end passes through plug(5)Sealing;
It further include U-shaped bend pipe(7), the U-shaped bend pipe(7)It is placed in first chamber(19)It is interior, and first partition is run through at both ends (15), wherein one end and straight tube(6)Connection, the other end and the second hole are managed(8)One end connection, second hole pipe(8)It is another Second partition is run through in one end(16), and it is pierced by clam shell and tail pipe(12)Connection;
It further include third hole pipe(14), the third hole pipe(14)Through first partition(15)And second partition(16), and be placed in First chamber(19)The port of one end is connected with blanking cover(13);
Further include high frequency silencing cavity, the high frequency silencing cavity is managed including the second hole(8), left end cap(9), cylinder(10)And right end cap (11), the cylinder(10)Left end passes through left end cap(9)Sealing, right end pass through right end cap(11)Sealing, left end cap(9)And right end Lid(11)Managed with the second hole(8)Connection, and high frequency silencing cavity runs through second partition(16).
2. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that:Described first every Plate(15)And second partition(16)It is vertically connected in clam shell.
3. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that:The tail pipe (12)Pipe end be bell shape.
4. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that:Described first every Plate(15)On be provided with several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture.
5. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that:First hole Pipe(4)It is placed in first chamber(19)With third chamber(21)Be provided with several apertures on interior side wall, the aperture it is a diameter of 2.5mm~4.5mm。
6. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that:High frequency is constituted to disappear It manages in second hole of sound chamber side wall(8)On be provided with several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture.
7. a kind of automobile-used impedance composite clampshell silencer according to claim 1, it is characterised in that:The third hole Pipe(14)It is placed in second chamber(20)Several apertures, a diameter of 2.5mm ~ 4.5mm of the aperture are provided on interior side wall.
CN201721828871.8U 2017-12-23 2017-12-23 A kind of automobile-used impedance composite clampshell silencer Expired - Fee Related CN207686792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721828871.8U CN207686792U (en) 2017-12-23 2017-12-23 A kind of automobile-used impedance composite clampshell silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721828871.8U CN207686792U (en) 2017-12-23 2017-12-23 A kind of automobile-used impedance composite clampshell silencer

Publications (1)

Publication Number Publication Date
CN207686792U true CN207686792U (en) 2018-08-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721828871.8U Expired - Fee Related CN207686792U (en) 2017-12-23 2017-12-23 A kind of automobile-used impedance composite clampshell silencer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114382698A (en) * 2022-01-28 2022-04-22 杰锋汽车动力系统股份有限公司 Fuel cell air compressor silencer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114382698A (en) * 2022-01-28 2022-04-22 杰锋汽车动力系统股份有限公司 Fuel cell air compressor silencer
CN114382698B (en) * 2022-01-28 2024-04-09 杰锋汽车动力系统股份有限公司 Muffler of fuel cell air compressor

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180803

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