CN201723279U

CN201723279U - Muffler tail pipe

Info

Publication number: CN201723279U
Application number: CN2010202360901U
Authority: CN
Inventors: 毛松杰
Original assignee: NINGBO SIMING AUTO PARTS CO Ltd
Current assignee: NINGBO SIMING AUTOMOBILE TECHNOLOGY CO., LTD.
Priority date: 2010-06-24
Filing date: 2010-06-24
Publication date: 2011-01-26
Anticipated expiration: 2020-06-24

Abstract

A muffler tail pipe comprises a housing and an inner container body, wherein the inner container body comprises a connecting section and a muffling section; 8 to 30 1.5 to 5 mm muffling through holes are formed on the circumferential wall of the muffling section, are uniformly distributed at the periphery of the muffling section and are arrayed in the axial direction of the muffling section at equal intervals, and the center distance between every two axially adjacent muffling through holes is 6 to 20 mm; a stainless steel wool layer is wound on the circumferential wall of the muffling section, the axial length of the stainless steel wool layer is larger than the length of axial arrangement of the muffling through holes, and the stainless steel wool layer is 1 to 6 mm in thickness; the housing is sleeved outside the stainless steel wool layer, the left inner wall of the housing is tightly clamped onto the circumferential wall of the connecting section, and the right end of the housing is connected with the right end of the muffling section; and an asbestos layer is filled between the housing and the stainless steel wool layer. The utility model has the advantage that when an automobile steps up suddenly, the muffler tail pipe can assist a muffler in further weakening the exhaust noise of the engine.

Description

Muffler tail pipe

Technical field:

The utility model relates to a kind of silencing apparatus of motor, specifically is a kind of component of silencing apparatus.

Background technique:

As everyone knows, silencing apparatus all is installed in the rear portion of automobile engine exhaust pipe usually, be mainly used to reduce the exhaust sound of motor, in order to make the silencing apparatus afterbody that is exposed to the car body outside seem more attractive in appearance, generous, one all is connected with a muffler tail pipe existing silencing apparatus afterbody.Because one plays decorating action existing muffler tail pipe, and when the driver when automobile is quickened suddenly, can produce moment exhaust high pressure in the silencing apparatus, this exhaust high pressure then is the generating noise source, though existing silencing apparatus has the effect that reduces engine exhaust noise, but, in this case, moment exhaust high pressure in the silencing apparatus still can some spray because of not having enough time to be weakened from muffler tail pipe, thereby generation noise, therefore, the noise elimination effect of above-mentioned silencing apparatus still need be improved.

The model utility content:

The technical problems to be solved in the utility model is, provides a kind of when automobile quickens suddenly, can rosonator further weakens the muffler tail pipe of engine exhaust noise.

Technical solution of the present utility model is, provide a kind of muffler tail pipe: comprise housing and inner bag body with following structure, wherein, the inner bag body is made up of linkage section and muffler section two-part, the muffler section perisporium is provided with a plurality of noise elimination through holes, the noise elimination through hole is axially equidistantly arranged along the even distribution of muffler section circumference and along muffler section, the diameter of noise elimination through hole is 1.5mm～5mm, centre distance between the axially adjacent noise elimination through hole is 6～20mm, the quantity of the noise elimination through hole that the every circle of muffler section circumference distributes is 8～30, be wrapped with stainless steel silk flosssilk wadding layer on the muffler section periphery wall, the axial length of stainless steel silk flosssilk wadding layer is longer than the length of noise elimination through hole axially-aligned, the thickness of stainless steel silk flosssilk wadding layer is 1～6mm, housing is enclosed within stainless steel silk flosssilk wadding layer outside, housing left part inwall is clamped on the periphery wall of linkage section, and the housing right-hand member is connected with the muffler section right-hand member, is filled with asbestos layer between housing and the stainless steel silk flosssilk wadding layer.

After adopting above structure, compared with prior art, the utility model muffler tail pipe has the following advantages: only to play decorating action different with the prior art muffler tail pipe, because the utility model muffler tail pipe muffler section perisporium is provided with a plurality of noise elimination through holes, be wrapped with stainless steel silk flosssilk wadding layer on the muffler section periphery wall, and be filled with asbestos layer between stainless steel silk flosssilk wadding layer and the housing, therefore, when the gas high pressure that has noise of being discharged by silencing apparatus enters in the muffler section by linkage section, gas can expand because of the unexpected increase in cross section, in the process that gas expands, understand some gas in the noise elimination through hole is diverted to stainless steel silk flosssilk wadding layer, these be diverted to gas in the stainless steel silk flosssilk wadding layer with noise then can be and the reflection of asbestos wall in the slit of stainless steel silk flosssilk wadding layer, absorb down and weakened, thereby reach the purpose that rosonator further weakens engine exhaust noise.

Description of drawings:

Fig. 1 is the interior sectional structure schematic representation that flows when gas is arranged of the utility model muffler tail pipe.

Embodiment:

Below in conjunction with the drawings and specific embodiments the utility model muffler tail pipe is described in further detail:

As shown in Figure 1, in this embodiment, the utility model muffler tail pipe comprises housing 5 and inner bag body, the inner bag body is made up of linkage section 1 and muffler section 6 two-part, linkage section 1 left part is connected with silencing apparatus tail end (not shown), muffler section 6 perisporiums are provided with 40 noise elimination through holes 3, these 40 noise elimination through holes 3 are axially-aligned four circles on the peripheral wall of muffler section 6, every circle has ten noise elimination through holes 3, noise elimination through hole 3 is axially equidistantly arranged along the even distribution of muffler section 6 circumference and along muffler section 6, the diameter of noise elimination through hole 3 is 3mm, centre distance between the axially adjacent noise elimination through hole 3 is 12mm, be wrapped with stainless steel silk flosssilk wadding layer 2 on muffler section 6 periphery walls, the axial length of stainless steel silk flosssilk wadding layer 2 is longer than the length of noise elimination through hole 3 axially-aligned, the thickness of stainless steel silk flosssilk wadding layer 2 is 2mm, housing 5 is enclosed within stainless steel silk flosssilk wadding layer 2 outside, housing 5 left part inwalls are clamped on the periphery wall of linkage section 1, housing 5 right-hand members and the welding of muffler section 6 right-hand members are filled with asbestos layer 4 between housing 5 and the stainless steel silk flosssilk wadding layer 2.In this embodiment, stainless steel silk flosssilk wadding layer 2 and asbestos layer 4 are the commercially available prod.

The working principle of the utility model muffler tail pipe is: when the driver when automobile is quickened suddenly, the moment exhaust high pressure that produces in the silencing apparatus (not shown) can enter in the muffler section 6 by linkage section 1, at this moment, gas can expand because of the unexpected increase in cross section, in the process that gas expands, understand some gas in noise elimination through hole 3 is diverted to stainless steel silk flosssilk wadding layer 2, these be diverted to gas in the stainless steel silk flosssilk wadding layer 2 with noise then can under the reflection of the slit of stainless steel silk flosssilk wadding layer 2 and asbestos layer 4 and absorption, be weakened.

Claims

1. muffler tail pipe, comprise housing (5) and inner bag body, it is characterized in that: described inner bag body is made up of linkage section (1) and muffler section (6) two-part, described muffler section (6) perisporium is provided with a plurality of noise elimination through holes (3), described noise elimination through hole (3) evenly distributes and axially equidistantly arranges along muffler section (6) along muffler section (6) circumference, the diameter of described noise elimination through hole (3) is 1.5mm～5mm, centre distance between the described axially adjacent noise elimination through hole (3) is 6～20mm, the quantity of the noise elimination through hole (3) that the every circle of described muffler section (6) circumference distributes is 8～30, be wrapped with stainless steel silk flosssilk wadding layer (2) on described muffler section (6) periphery wall, the axial length of described stainless steel silk flosssilk wadding layer (2) is longer than the length of noise elimination through hole (3) axially-aligned, the thickness of described stainless steel silk flosssilk wadding layer (2) is 1～6mm, described housing (5) is enclosed within stainless steel silk flosssilk wadding layer (2) outside, described housing (5) left part inwall is clamped on the periphery wall of linkage section (1), described housing (5) right-hand member is connected with muffler section (6) right-hand member, is filled with asbestos layer (4) between described housing (5) and the stainless steel silk flosssilk wadding layer (2).