CN206092115U

CN206092115U - Muffler

Info

Publication number: CN206092115U
Application number: CN201621125252.8U
Authority: CN
Inventors: 樊卉菁; 蔡宇行; 周骁; 印仁军; 施轶; 林绳缤; 马卓; 曹荣勇; 荀正; 吴程明; 黄志伟; 沈鑫; 王明敏; 孙啸; 洪程伟
Original assignee: Shanghai Tenneco Exhaust System Co Ltd
Current assignee: Shanghai Tenneco Exhaust System Co Ltd
Priority date: 2016-10-14
Filing date: 2016-10-14
Publication date: 2017-04-12
Anticipated expiration: 2026-10-14

Abstract

The utility model provides a muffler, its includes casing, first, second end cover, first, second baffle and pipe, is wherein be equipped with first, second and third cavity in the casing. The pipe include first body and with first body cup joints second body together, first body is equipped with the flexion and the flaring of S -shaped. The flexion is equipped with the exit end, first end cover is equipped with accepts the first through -hole of exit end. The second body is equipped with to extend goes into expand intraoral connecting portion and entry end, the second end cover is equipped with accepts the second through -hole of entry end. Muffler still is equipped with the connection and is in pitch pipe on the second body. The utility model discloses a with first body and second body axial slidable link together, can absorb the deformation, in addition, compare in traditional welding, closely the laminating is more convenient in the mode of the inboard of first through -hole / second through -hole with exit end / entry end through the crimping of this kind of hole enlargement.

Description

Acoustic filter

Technical field

This utility model is related to a kind of acoustic filter, belongs to engine exhaust post-processing technology field.

Background technology

High-temperature exhaust air in acoustic filter easily makes element that mechanically deform occurs, so as to cause the cracking of welding position.According to The requirement of durability, requires consideration for how to solve above-mentioned technical problem in muffler desing.

Utility model content

The purpose of this utility model is to provide a kind of can absorption to deform and easily fabricated acoustic filter.

For achieving the above object, this utility model is adopted the following technical scheme that：A kind of acoustic filter, which is included by a nugget category Housing that plate is curled into, the first end cap and the second end cap respectively positioned at the housing two ends, in the housing the One baffle plate and second baffle and the conduit through first end cap and second end cap, wherein being provided with position in the housing The first cavity between first end cap and the first baffle, between the first baffle and the second baffle The second cavity and the 3rd cavity between the second baffle and second end cap, the conduit includes first pipe Body and the second body connected together with first body, first body are axially slidable with second body Link together, first body is provided with bending section and the enlarging of S-shaped, wherein the crooked position is in first chamber In vivo, the enlarging is located in second cavity, and the bending section is provided with the port of export, and it is described that the first end is covered with collecting The first through hole of the port of export, the port of export is by the outside expanding inner side to be fitted tightly over the first through hole；Described second Body is provided with the connecting portion that extends in the enlarging and extends horizontally through in the 3rd cavity from the connecting portion Arrival end, second end cap are provided with the second through hole for housing the arrival end, and the arrival end is by outwards expanding closely pasting Close in the inner side of second through hole；The acoustic filter is additionally provided with the pitch pipe being connected on second body, wherein described Pitch pipe extends through the second baffle with the first baffle to be connected with first cavity from the 3rd cavity.

Used as the further improved technical scheme of this utility model, first body can be axially slided with second body Link together dynamicly, wherein the periphery of the connecting portion is socketed with steel wool, the steel wool mechanical grip is in the enlarging It is interior.

Used as the further improved technical scheme of this utility model, the arrival end is located on the axis of the acoustic filter, The port of export deviates the axis of the acoustic filter.

Used as the further improved technical scheme of this utility model, first body passes through the first baffle, described Second body passes through the second baffle.

Used as the further improved technical scheme of this utility model, the pitch pipe is provided with opening near first end cap Mouthful.

As the further improved technical scheme of this utility model, the acoustic filter be provided be welded on the first baffle with Bracing piece between the second baffle.

As the further improved technical scheme of this utility model, the caliber of the caliber of the arrival end and the port of export It is identical.

Compared to prior art, this utility model is by being axially slidably connected to one by the first body and the second body Rise, deformation can be absorbed；In addition, compared to traditional welding, the port of export/arrival end is brought into close contact by this expanding crimping Mode in the inner side of first through hole/the second through hole is more convenient, and can absorb certain stress to improve the durable of product Property.

Description of the drawings

Fig. 1 is the schematic perspective view of this utility model acoustic filter.

Fig. 2 is the schematic perspective view of another angles of Fig. 1.

Fig. 3 is the part isometric exploded view of Fig. 1.

Fig. 4 is the further three-dimensional exploded views of Fig. 3.

Fig. 5 is to remove the schematic perspective view in Fig. 1 after housing and end cap.

Fig. 6 is the profile of the line A-A along Fig. 1.

Fig. 7 is the partial enlarged drawing of circle B in Fig. 6.

Fig. 8 is the partial enlarged drawing of circle C in Fig. 6.

Specific embodiment

Please join shown in Fig. 1 to Fig. 8, this utility model discloses a kind of acoustic filter 100, which is included by one piece of metal plate coils song The housing 1 of formation, the first end cap 11 and the second end cap 12 respectively positioned at 1 two ends of the housing, in the housing 1 the One baffle plate 21 and second baffle 22, and through the conduit 3 of first end cap 11 and second end cap 12, wherein the shell The first cavity 10 between first end cap 11 and the first baffle 21 is provided with body 1, positioned at the first baffle The second cavity 20 between 21 and the second baffle 22 and it is located between the second baffle 22 and second end cap 12 The 3rd cavity 30.

The second body 32 that the conduit 3 is included the first body 31 and connected together with first body 31.Institute Bending section 311 and enlarging 312 that the first body 31 is provided with S-shaped are stated, wherein the bending section 311 is located at first cavity 10 Interior, the enlarging 312 is located in second cavity 20, and the bending section 311 is provided with the port of export 313, first end cap 11 It is provided with the first through hole 111 for housing the port of export 313.Please join shown in Fig. 7, the port of export 313 is by outwards expanding with tight The inner side of the first through hole 111 is fitted in, wherein dotted line represents the position of the not expanding front port of export 313.Second body 32 are provided with the connecting portion 321 that extends in the enlarging 312 and extend horizontally through the 3rd chamber from the connecting portion 321 Arrival end 322 in body 30, second end cap 12 are provided with the second through hole 121 for housing the arrival end 322.The arrival end 322 by outwards expanding to be fitted tightly over the inner side of second through hole 121 to eliminate gap, wherein dotted line represent it is not expanding before The position of arrival end 322.In this utility model embodiment illustrated, first body 31 and 32 axle of the second body To being slidably connected together, wherein the periphery of the connecting portion 321 is socketed with steel wool 33,33 machinery card of the steel wool Hold in the enlarging 312.It is arranged such, it is possible to use first body 31 is come with sliding axially for second body 32 Absorb the impact produced by deformation.In addition, in this utility model embodiment illustrated, the caliber of the arrival end 322 with The caliber of the port of export 313 is identical.It is arranged such, it is possible to use identical tool is expanded to pipe, reduces cost. Compared to traditional welding, the mode of this expanding crimping is more convenient and can absorb certain stress to improve the resistance to of product Long property.

The arrival end 322 is located on the axis of the acoustic filter 1, and the port of export 313 deviates the axle of the acoustic filter 1 Line.First body 31 passes through the first baffle 21, second body 32 to pass through the second baffle 22.

The acoustic filter 100 is additionally provided with the pitch pipe 4 being connected on second body 32, wherein the pitch pipe 4 is certainly 3rd cavity 30 extends through the second baffle 22 with the first baffle 21 to be connected with first cavity 10. The pitch pipe 4 is provided with the opening 41 near first end cap 11.

The acoustic filter 1 is additionally provided with the bracing piece 5 being welded between the first baffle 21 and the second baffle 22, with Structural strength is improved, deformation is prevented.

In addition, above example is merely to illustrate this utility model and not limits the technical side described by this utility model Case, understanding of this description should be based on persons of ordinary skill in the field, although this specification is with reference to above-mentioned Embodiment has been carried out detailed description to this utility model, but, it will be understood by those within the art that, affiliated skill The technical staff in art field still can modify to this utility model or equivalent, and all are new without departing from this practicality The technical scheme of the spirit and scope of type and its improvement, all should cover in right of the present utility model.

Claims

1. a kind of acoustic filter, it include by one piece of metal plate coils it is curved into housing, respectively positioned at the first of the housing two ends End cap and the second end cap, the first baffle in the housing and second baffle and through first end cap and described the The conduit of two end caps, wherein the first cavity being provided with the housing between first end cap and the first baffle, The second cavity between the first baffle and the second baffle and it is located at the second baffle and second end The 3rd cavity between lid, it is characterised in that：The conduit is included the first body and is connected together with first body The second body, first body axially slidably linked together with second body, and first body is provided with S The bending section of shape and enlarging, wherein the crooked position is in first cavity, the enlarging is located at second cavity Interior, the bending section is provided with the port of export, and the first end is covered with the first through hole for housing the port of export, the port of export quilt The outside expanding inner side to be fitted tightly over the first through hole；Second body is provided with the connection extended in the enlarging Portion and the arrival end in the 3rd cavity is extended horizontally through from the connecting portion, it is described that second end cap is provided with collecting Second through hole of arrival end, the arrival end is by the outside expanding inner side to be fitted tightly over second through hole；The noise elimination Device is additionally provided with the pitch pipe being connected on second body, wherein the pitch pipe extend through from the 3rd cavity it is described Second baffle and the first baffle are being connected with first cavity.

2. acoustic filter as claimed in claim 1, it is characterised in that：The periphery of the connecting portion is socketed with steel wool, the steel Velvet mechanical grip is in the enlarging.

3. acoustic filter as claimed in claim 2, it is characterised in that：The arrival end is located on the axis of the acoustic filter, institute State the axis that the port of export deviates the acoustic filter.

4. acoustic filter as claimed in claim 3, it is characterised in that：First body passes through the first baffle, and described the Two bodys pass through the second baffle.

5. acoustic filter as claimed in claim 4, it is characterised in that：The pitch pipe is provided with opening near first end cap Mouthful.

6. acoustic filter as claimed in claim 5, it is characterised in that：The acoustic filter is provided with and is welded on the first baffle and institute State the bracing piece between second baffle.

7. acoustic filter as claimed in claim 6, it is characterised in that：The caliber phase of the caliber of the arrival end and the port of export Together.