CN208918659U

CN208918659U - Muffler assembly

Info

Publication number: CN208918659U
Application number: CN201821655043.3U
Authority: CN
Inventors: 宣琪馨; 张涛; 陶玉
Original assignee: Tenneco FAWSN Changchun Automobile Parts Co Ltd
Current assignee: Tenneco FAWSN Changchun Automobile Parts Co Ltd
Priority date: 2018-10-12
Filing date: 2018-10-12
Publication date: 2019-05-31
Anticipated expiration: 2028-10-12

Abstract

A kind of muffler assembly comprising a preceding muffler, two middle mufflers and two after silencers.Each after silencer includes upper housing, lower case and core component.The core component includes third inlet tube, U-shaped connecting tube and the third outlet being connected with the U-shaped connecting tube.The U-shaped connecting tube includes the upper tube half and lower tube half being mutually stitched together, wherein two ends of the U-shaped connecting tube are circular hole, the intermediate tube that the U-shaped connecting tube connects the two ends is flat tube.Compared to the prior art, the utility model is provided with three kinds of mufflers, improves silencing function.Connection by setting circular hole for two ends of U-shaped connecting tube, convenient for the entrance of air-flow and with third outlet；In addition, improving acoustical behavior by setting flat tube for intermediate tube and advantageously reducing the height of product.

Description

Muffler assembly

Technical field

The utility model relates to a kind of muffler assemblies, belong to motor exhaust post-processing technology field.

Background technique

Muffler and after silencer before exhaust muffler component in the prior art generally includes.However, as noise reduction is wanted How the continuous improvement asked realizes that better silencing function is the industry technical issues that need to address.

Utility model content

The purpose of this utility model is to provide a kind of preferable muffler assemblies of silencing function.

To achieve the above objectives, the present invention adopts the following technical solutions: a kind of muffler assembly comprising one After a preceding muffler, two middle mufflers being connect with the preceding muffler and two be correspondingly connected with the middle muffler Muffler；The preceding muffler include first shell, positioned at intracorporal two first entrance pipes being parallel to each other of the first shell, And positioned at intracorporal two first outlet pipes being parallel to each other of the first shell, the first entrance pipe goes out with corresponding first Mouth pipe is axially aligned and is spaced apart from each other a certain distance；Muffler includes second shell, is located at the second shell in each In second entrance pipe and second outlet pipe；Each after silencer include upper housing, lower case and be located at the upper casing Core component between body and the lower case, the core component include third inlet tube, U-shaped connecting tube and with the U The connected third outlet of shape connecting tube, the U-shaped connecting tube includes the upper tube half and lower tube half being mutually stitched together, Described in U-shaped connecting tube two ends be circular hole, the U-shaped connecting tube connect the two ends intermediate tube be flat tube.

As the further improved technical solution of the utility model, the lower case is equipped with to match with the third inlet tube The first positioning hole of conjunction；The second positioning matched with the third outlet is collectively formed with the lower case for the upper housing Hole.

As the further improved technical solution of the utility model, each after silencer include be located at the upper housing with First baffle and second baffle in the lower case, to form the first cavity, the position of the side for being located at the first baffle The second cavity between the first baffle and the second baffle and the third positioned at the other side of the second baffle Cavity, the third inlet tube passes through the second baffle and first baffle is connected with first cavity；Described first Baffle is equipped with several first perforation for being connected to first cavity and second cavity.

As the further improved technical solution of the utility model, two ends of the U-shaped connecting tube are respectively positioned on described In second cavity, the U-shaped connecting tube is mutually welded with the second baffle.

As the further improved technical solution of the utility model, the intermediate tube is located in the third cavity, each A after silencer further includes the silencing cotton being filled in the third cavity.

As the further improved technical solution of the utility model, each after silencer further includes exporting with the third Two connected tail pipes of pipe, each tail pipe is made of upper and lower half-shell structure.

As the further improved technical solution of the utility model, the second entrance pipe is located at the one of the second shell A corner, the second outlet pipe are located at another corner of the second shell.

As the further improved technical solution of the utility model, the muffler assembly includes respectively with described the The middle part of the first connected tube body of one inlet tube, first tube body is equipped with the first flexible hinge.

As the further improved technical solution of the utility model, first tube body is equipped with to by the exhaust noise silencing Device assembly is installed to the suspension hook on automobile chassis.

As the further improved technical solution of the utility model, the muffler assembly includes connection described second Second tube body of outlet and the third inlet tube, second tube body are equipped with to pacify the muffler assembly The lifting lug being attached on automobile chassis.

Compared to the prior art, the utility model disappears after being provided with a preceding muffler, two middle mufflers and two Sound device, improves silencing function.By setting circular hole for two ends of U-shaped connecting tube, convenient for air-flow entrance and with The connection of third outlet；In addition, improving acoustical behavior by setting flat tube for intermediate tube and advantageously reducing product Highly.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of the utility model muffler assembly.

Fig. 2 is the main view of Fig. 1.

Fig. 3 is the stereoscopic schematic diagram of preceding muffler.

Fig. 4 is the cross-sectional view of Fig. 3.

Fig. 5 is the stereoscopic schematic diagram of middle muffler.

Fig. 6 is the cross-sectional view of Fig. 5.

Fig. 7 is the stereoscopic schematic diagram of after silencer.

Fig. 8 is the main view of Fig. 7, wherein part third inlet tube and third outlet are shown.

Fig. 9 is the top view removed in Fig. 7 after upper housing.

Figure 10 is the diagrammatic cross-section of the line A-A along Fig. 8.

Figure 11 is the diagrammatic cross-section of the line B-B along Fig. 8.

Figure 12 is the top view of the core component of after silencer.

Figure 13 is the main view of Figure 12.

Figure 14 is the diagrammatic cross-section of the line C-C along Figure 12.

Figure 15 is the diagrammatic cross-section of the line D-D along Figure 12.

Specific embodiment

It please join shown in Fig. 1 to Figure 15, the utility model discloses a kind of muffler assembly 100, starts to handle The exhaust of machine.The muffler assembly 100 includes a preceding muffler 1, disappears in connect with the preceding muffler 1 two Sound device 2 and two after silencers 3 being correspondingly connected with the middle muffler 2.

It please join shown in Fig. 3 and Fig. 4, the preceding muffler 1 includes first shell 11, two in the first shell 11 A first entrance pipe 12 being parallel to each other and two first outlet pipes being parallel to each other in the first shell 11 13.A certain distance is axially aligned and be spaced apart from each other to the first entrance pipe 12 with corresponding first outlet pipe 13, for beating Broken standing wave.

It please join shown in Fig. 5 and Fig. 6, muffler 2 includes second shell 21, in the second shell 21 in each Second entrance pipe 22 and second outlet pipe 23.Preferably, the second entrance pipe 22 is located at one of the second shell 21 Corner, the second outlet pipe 23 is located at another corner of the second shell 21, in order to arrange.

It please join shown in Fig. 7 to Figure 15, each after silencer 3 includes upper housing 31, lower case 32 and is located on described Core component between shell 31 and the lower case 32.The core component include third inlet tube 33, U-shaped connecting tube 34 with And the third outlet 35 being connected with the U-shaped connecting tube 34, the U-shaped connecting tube 34 include the upper half being mutually stitched together Pipe 341 and lower tube half 342, wherein two ends 343 of the U-shaped connecting tube 34 are circular hole, the U-shaped connecting tube 34 is connected The intermediate tube 344 of the two ends 343 is flat tube.By setting circular hole for two ends 341 of U-shaped connecting tube 34, it is convenient for The entrance of air-flow and the connection with third outlet 35；In addition, improving acoustics by setting flat tube for intermediate tube 344 Performance and the height for advantageously reducing product.

The lower case 32 is equipped with the first positioning hole 321 matched with the third inlet tube 33；The upper housing 31 The second location hole 322 matched with the third outlet 35 is collectively formed with the lower case 32.

Each after silencer 3 includes positioned at the upper housing 31 and the first baffle 36 and the in the lower case 32 Two baffles 37, with formed be located at the first baffle 36 side the first cavity 10, be located at the first baffle 36 with it is described The second cavity 20 between second baffle 37 and the third cavity 30 positioned at the other side of the second baffle 37.Described Three inlet tubes 33 pass through the second baffle 37 and first baffle 36 is connected with first cavity 10；The first baffle 36 are equipped with several first perforation 361 for being connected to first cavity 10 with second cavity 20.

Two ends 341 of the U-shaped connecting tube 34 are respectively positioned in second cavity 20, the U-shaped connecting tube 34 with 37 phase of the second baffle welding.

The intermediate tube 344 is located in the third cavity 30, each after silencer 3 further includes being filled in the third Silencing cotton 40 in cavity 30.

Each after silencer 3 further includes two tail pipes 38 being connected with the third outlet 35.Each tail pipe 38 It is to be made of upper and lower half-shell structure

The muffler assembly 100 further includes the first tube body 4 being connected respectively with the first entrance pipe 12, described The middle part of first tube body 4 is equipped with the first flexible hinge 41 and the muffler assembly 100 is installed to automobile chassis On suspension hook 42.

The muffler assembly 100 includes connect the second outlet pipe 23 and the third inlet tube 33 the Two tube bodies 5, second tube body 5 are equipped with the lifting lug 51 to be installed to the muffler assembly 100 on automobile chassis.

Above embodiments are merely to illustrate the utility model and not limit technical solution described in the utility model, right The understanding of this specification should be based on person of ordinary skill in the field, although this specification is referring to the above embodiments Detailed description is had been carried out to the utility model, still, those skilled in the art should understand that, technical field Technical staff still the utility model can be modified or replaced equivalently, and all do not depart from the essence of the utility model The technical solution and its improvement of mind and range, should all cover in the scope of the claims of the utility model.

Claims

1. a kind of muffler assembly comprising a preceding muffler, two middle mufflers being connect with the preceding muffler And two after silencers being correspondingly connected with the middle muffler；It is characterized by: the preceding muffler include first shell, Positioned at intracorporal two first entrance pipes being parallel to each other of the first shell and it is located at intracorporal two of the first shell mutually Parallel first outlet pipe, the first entrance pipe axially aligned with corresponding first outlet pipe and be spaced apart from each other it is certain away from From；Muffler includes second shell, second entrance pipe and second outlet pipe in the second shell in each；Often One after silencer includes upper housing, lower case and the core component between the upper housing and the lower case, institute Stating core component includes third inlet tube, U-shaped connecting tube and the third outlet being connected with the U-shaped connecting tube, the U-shaped Connecting tube includes the upper tube half and lower tube half being mutually stitched together, wherein two ends of the U-shaped connecting tube are circular hole, The intermediate tube that the U-shaped connecting tube connects the two ends is flat tube.

2. muffler assembly as described in claim 1, it is characterised in that: the lower case is equipped with and the third entrance The first positioning hole that pipe matches；Matched with the third outlet is collectively formed with the lower case for the upper housing Two location holes.

3. muffler assembly as claimed in claim 2, it is characterised in that: each after silencer includes being located on described First baffle and second baffle in shell and the lower case, to form the first chamber of the side for being located at the first baffle Body, the second cavity between the first baffle and the second baffle and positioned at the other side of the second baffle Third cavity, the third inlet tube passes through the second baffle and first baffle and is connected with first cavity；Institute It states first baffle and is equipped with several first perforation for being connected to first cavity and second cavity.

4. muffler assembly as claimed in claim 3, it is characterised in that: the equal position in two ends of the U-shaped connecting tube In second cavity, the U-shaped connecting tube is mutually welded with the second baffle.

5. muffler assembly as claimed in claim 4, it is characterised in that: the intermediate tube is located at the third cavity In, each after silencer further includes the silencing cotton being filled in the third cavity.

6. muffler assembly as claimed in claim 5, it is characterised in that: each after silencer further includes and described Two connected tail pipes of three outlets, each tail pipe is made of upper and lower half-shell structure.

7. muffler assembly as described in claim 1, it is characterised in that: the second entrance pipe is located at the second shell One corner of body, the second outlet pipe are located at another corner of the second shell.

8. muffler assembly as described in claim 1, it is characterised in that: the muffler assembly include respectively with The middle part of the first connected tube body of the first entrance pipe, first tube body is equipped with the first flexible hinge.

9. muffler assembly as claimed in claim 8, it is characterised in that: first tube body is equipped with to by the row Gas muffler assembly is installed to the suspension hook on automobile chassis.

10. muffler assembly as claimed in claim 8, it is characterised in that: the muffler assembly includes connection Second tube body of the second outlet pipe and the third inlet tube, second tube body are equipped with to by the exhaust noise silencing Device assembly is installed to the lifting lug on automobile chassis.