CN208918627U

CN208918627U - The partition of silencer

Info

Publication number: CN208918627U
Application number: CN201821669533.9U
Authority: CN
Inventors: 张佳博; 谢方
Original assignee: Shanghai Tenneco Exhaust System Co Ltd
Current assignee: Shanghai Tenneco Exhaust System Co Ltd
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2019-05-31
Anticipated expiration: 2028-10-15

Abstract

A kind of partition of silencer comprising main part, the main part include the through-hole to core tube feeding insertion.The main part further includes the multi-clove type flange for being centered around the periphery of the through-hole, the flange direction of the multi-clove type flange and the plane at the place of the main part are at an acute angle, in order to increase the flexible contact of the multi-clove type flange and the core pipe when the core pipe is inserted into the through-hole.So set, improving being reliably connected for partition and core pipe.

Description

The partition of silencer

Technical field

The utility model relates to a kind of partitions of silencer, belong to engine exhaust system technical field.

Background technique

In recent years, target for energy-saving and emission-reduction has all been formulated in the multiple countries and regions in the world, and it is riding that China also clearly arrives the year two thousand twenty Vehicle new car average fuel consumption reaches 5L/100km, and the pressure of energy-saving and emission-reduction is larger.In current many energy-saving and emission-reduction modes, Automotive light weight technology is to be easiest to realization, the relatively large mode of potentiality.For riding gasoline car, every reduction 100kg can at most be saved Oily 0.39L/100km.

So-called automotive light weight technology refers to and is guaranteeing that every important indicator such as automotive safety all meets country and professional standard is wanted In the case where asking, in order to increase the utilization efficiency of the energy, make that its is more energy saving, safety, by using various advanced technologies or Special material mitigates the process of car mass as much as possible.In the above context, automobile vendor is to the light-weighted requirement of components It increases year by year.

The components of automobile exhaust system mostly use stainless steel material, realize that the most effective means of its lightweight are maximum limits The wall thickness of the reduction material of degree.But while material wall thickness reduces, increase the difficulty of welding.In the relatively thin situation of base material wall thickness Under, if welding current is big when welding, it is easy to base material burn-through；If welding current is small, base material fusion penetration is small, and welding is strong It spends low, influences product quality.So gap is smaller for the welded connecting of thin-wall part, be more conducive to improve welding quality.

In traditional exhaust system structure, a complete flange is usually directly stamped out on the partition of silencer, The flange of the partition of core pipe and silencer is by being welded and fixed.If the wall thickness of partition is thicker (1.0 ± 0.2mm), contact gap It is of less demanding to welding control because base material wall thickness is thicker although contact gap is larger in ± 1.0mm or so.

But (0.6 ± 0.2mm) then requires the outer wall of core pipe to ensure welding quality in the exhaust system that material is thinned Gap between the inner wall of the flange of partition is the smaller the better, usually controls the machining accuracy of flanging bore, but thus bring Problem is that difficulty of processing increases, and scrappage is higher, and processing cost is high.

Utility model content

The purpose of this utility model is to provide a kind of partitions of silencer that can be realized and be reliably connected with core pipe.

To achieve the above objectives, the present invention adopts the following technical solutions: a kind of partition of silencer comprising main body Portion, the main part include the through-hole to core tube feeding insertion, and the main part further includes the periphery for being centered around the through-hole Multi-clove type flange, the flange direction of the multi-clove type flange and the plane at the place of the main part are at an acute angle, in order in institute When stating the core pipe insertion through-hole, increase the flexible contact of the multi-clove type flange and the core pipe.

As the further improved technical solution of the utility model, the main part be equipped with gas supply stream across several wear Hole.

As the further improved technical solution of the utility model, the partition includes bending from the outer rim of the main part Bending edge, the bending edge to by the partition be fixed to the silencer in.

As the further improved technical solution of the utility model, the multi-clove type flange and the core pipe are interference fitted.

As the further improved technical solution of the utility model, the partition includes being located at the two neighboring multi-clove type Notch between flange.

Compared to the prior art, the utility model passes through setting multi-clove type flange and the institute in flange direction and the main part Plane it is at an acute angle, in order to increase the multi-clove type flange and the core pipe when the core pipe is inserted into the through-hole Flexible contact improves being reliably connected for partition and core pipe.

Detailed description of the invention

The stereoscopic schematic diagram when partition and core pipe that Fig. 1 is the utility model silencer cooperate.

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

Fig. 3 is the diagrammatic cross-section of the line A-A along Fig. 2.

Fig. 4 is the stereoscopic schematic diagram of the partition of the utility model silencer.

Fig. 5 is the main view of Fig. 4.

Fig. 6 is the diagrammatic cross-section of the line B-B along Fig. 5.

Specific embodiment

Please join shown in Fig. 1 to Fig. 6, the utility model discloses a kind of partition 1 of silencer comprising main part 2 and The bending edge 3 bent from the outer rim of the main part 2.The bending edge 3 is to be fixed to the silencer for the partition 1 In.

The main part 2 include to core tube feeding 4 be inserted into through-hole 21 and be centered around the through-hole 21 periphery it is more Flap-type flange 22.The flange direction of the multi-clove type flange 22 and the plane at the place of the main part 2 are at an acute angle, in order to When the core pipe 4 is inserted into the through-hole 21, increase the flexible contact of the multi-clove type flange 22 and the core pipe 4.

The partition 1 includes the notch 23 between the two neighboring multi-clove type flange 22, so that the multi-clove type Flange 22 has certain elasticity.Preferably, the multi-clove type flange 22 is interference fitted with the core pipe 4.

In addition, the main part 2 be additionally provided with gas supply stream across several perforation 24.

Compared to the prior art, the utility model can be realized the joint gap for reducing the core pipe 4 and the partition 1, The processing cost of base material can be not only reduced in this way, but also can promote welding quality, and final realization exhaust system is thinning effective It promotes.

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 partition of silencer comprising main part, the main part include the through-hole to core tube feeding insertion, feature Be: the main part further includes the multi-clove type flange for being centered around the periphery of the through-hole, the flange side of the multi-clove type flange Plane to the place with the main part is at an acute angle, in order to increase more valves when the core pipe is inserted into the through-hole The flexible contact of formula flange and the core pipe.

2. the partition of silencer as described in claim 1, it is characterised in that: the main part be equipped with gas supply stream across it is several Perforation.

3. the partition of silencer as described in claim 1, it is characterised in that: the partition includes the outer rim from the main part The bending edge of bending, the bending edge is the partition to be fixed in the silencer.

4. the partition of silencer as described in claim 1, it is characterised in that: the multi-clove type flange is matched with the core pipe interference It closes.

5. the partition of silencer as claimed in claim 4, it is characterised in that: the partition includes positioned at two neighboring described more Notch between flap-type flange.