CN2816364Y - Ic engine exhausting silencer for automobile - Google Patents
Ic engine exhausting silencer for automobile Download PDFInfo
- Publication number
- CN2816364Y CN2816364Y CN 200520009713 CN200520009713U CN2816364Y CN 2816364 Y CN2816364 Y CN 2816364Y CN 200520009713 CN200520009713 CN 200520009713 CN 200520009713 U CN200520009713 U CN 200520009713U CN 2816364 Y CN2816364 Y CN 2816364Y
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- Prior art keywords
- chamber
- hush tube
- tube
- pipe
- aperture
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000003584 silencer Effects 0.000 title claims abstract description 27
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000011358 absorbing material Substances 0.000 claims description 4
- 230000030279 gene silencing Effects 0.000 abstract description 13
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 3
- 238000009423 ventilation Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses an IC engine exhausting silencer for an automobile, which comprises a shell body, a left and a right end covers and silencing pipes, wherein the inner part of the shell body 2 is divided into chambers by transverse and vertical partition boards, and the sizes of the chambers are not equal to each other; the chambers are all provided with the silencing pipes; the chambers are communicated with each other through the silencing pipes or/and ventilation pipes 14 on the partition boards, and the air inlet chamber and the exhaust chamber are respectively communicated with the outer part of the shell body through an air inlet silencing pipe and an exhaust silencing pipe; one end of an intermediate silencing pipe is provided with an opening, the other end is closed, and the opening end of the intermediate silencing pipe passing through the partition boards extends into the chamber adjacent to the chamber which the intermediate silencing pipe is arranged in; the wall pipe of the intermediate silencing pipe is provided with small holes (13). Due to the adoption of the proposal, the IC engine exhausting silencer for an automobile has the characteristics that the insertion loss (silencing quantity) is large, and the silencing quantity can reach more than 25 db (A); the power loss ratio is small and is only 1.5 to 2% in general; the exhaust pressure loss is small and is only 5 to 6 K Pa in general. In addition, the utility model has the advantages of reasonable design and easy implementation, and the utility model is suitable for large-scale popularization and application.
Description
Technical field
The utility model relates to a kind of silencing apparatus, particularly the exhaust silencer for internal-combustion engine used of automobile.
Background technique
The exhaust silencer for internal-combustion engine of using on the automobile mainly adopts expanding and resonance type muffler device at present, and hush tube all is a both ends open generally, has many apertures on the tube wall.The insertion of this silencing apparatus loss (sound deadening capacity) is generally all smaller, and only shellfish to tens decibel is not in a measure satisfied the requirement of relative national standards.
The model utility content
At the defective and the deficiency of prior art, the purpose of this utility model is to provide a kind of can effectively improve sound deadening capacity and the little automobile engine exhaust silencer of power loss ratio.
The technical solution of the utility model is as follows: a kind of automobile engine exhaust silencer, comprise housing, left and right sides end cap and hush tube, its key is: enclosure interior is separated into the chamber that differs in size by horizontal, vertical dividing plate, hush tube all is housed in each chamber, between each chamber by hush tube or/and breathing pipe on the dividing plate is communicated with, and air inlet chamber and exhaust chamber are communicated with outside by the inlet and outlet hush tube respectively; Middle hush tube one end opening, the other end sealing, its opening end passes dividing plate and extend in the adjacent chamber of its place chamber, has aperture on the tube wall of middle hush tube.
Hush tube in the middle of the hush tube and second in the middle of described enclosure interior is provided with first, this centre hush tube and inlet and outlet hush tube are an end opening, and the other end sealing has aperture on the tube wall of each hush tube; Diaphragm and vertical clapboard are divided into four chambers with enclosure interior, and intake noise reduction pipe and exhausting silencer pipe place air inlet chamber I and the IV of exhaust chamber respectively, and its opening end stretches out outside the housing; And hush tube places II, III chamber respectively in the middle of the first middle hush tube and second, its closed end and left end cap welding, and opening end passes dividing plate and extend into respectively in I, the IV chamber; On diaphragm, be provided with the breathing pipe that II, III chamber are communicated with.
The center line of described intake noise reduction pipe and the axis parallel of housing, the center line of exhausting silencer pipe is vertical with the shaft axis of housing.
The gross area of the aperture of opening is greater than the sectional area of this pipe on described each tube wall, and the gross area of aperture is greater than the gross area of aperture on the hush tube tube wall in the middle of hush tube in the middle of first or second on the intake noise reduction tube wall, and in the middle of first in the middle of the hush tube or second on the hush tube tube wall gross area of aperture greater than the gross area of the aperture of opening on the exhausting silencer tube wall.
Described diaphragm and vertical clapboard are orthogonal, and diaphragm is parallel to the shaft axis of housing.
It is I chamber volume＞II chamber volume＞IV chamber volume＞III chamber volume that the volume of four chambers of described enclosure interior sorts by size.
Described right end cap inboard is provided with backplate, between backplate and right end cap sound-absorbing material is housed.
Adopt the beneficial effect of such scheme to be: the insertion loss (sound deadening capacity) of car combustion engine exhaust silencer is big, can reach more than the 25db (A); Power loss ratio is little, generally has only 1.5～2%; The exhaust pressure loss is little, generally has only 5～6KPa.In addition, the utility model is reasonable in design, implements to be suitable for large-scale promotion application easily.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Embodiment
Please see Figure 1, Fig. 2 and Fig. 3, the utility model comprises housing 2, left end cap 1, right end cap 11, intake noise reduction pipe 8 and exhausting silencer pipe 5, housing 2 inside are separated into the chamber that differs in size by horizontal, vertical dividing plate, hush tube all is housed in each chamber, between each chamber by hush tube or/and the breathing pipe 14 on the dividing plate is communicated with, and air inlet chamber and exhaust chamber are communicated with outside by the inlet and outlet hush tube respectively; Middle hush tube one end opening, the other end sealing, its opening end passes dividing plate and extend in the adjacent chamber of its place chamber, has aperture 13 on the tube wall of middle hush tube.
In the present embodiment, hush tube 3 in the middle of the hush tube 12 and second in the middle of housing 2 inside are provided with first, this centre hush tube and inlet and outlet hush tube are an end opening, and the other end sealing has aperture 13 on the tube wall of each hush tube; Diaphragm 6 and vertical clapboard 4,7 are divided into four chambers with enclosure interior, and intake noise reduction pipe 8 places air inlet chamber I, its closed end and vertical clapboard 7 welding, and opening end reaches right end cap 11 outsides; Hush tube 12 places the II chamber in the middle of first, its closed end and left end cap 1 welding, and opening end passes vertical clapboard 7 and extend in the I chamber; Hush tube 3 places the III chamber in the middle of second, its closed end and left end cap 1 welding, and opening end passes vertical clapboard 4 and extend in the IV chamber; And exhausting silencer pipe 5 places the IV of exhaust chamber, its closed end and diaphragm 6 welding, and opening end reaches housing 2 outsides; On diaphragm 6, be provided with the breathing pipe 14 that II, III chamber are communicated with.
Also can further find out from Fig. 1, Fig. 2 and Fig. 3: the gross area of the aperture of opening is greater than the sectional area of this pipe on each tube wall, and the gross area of aperture is greater than the gross area of aperture on hush tube 3 tube walls in the middle of hush tube 12 in the middle of first or second on intake noise reduction pipe 8 tube walls, and in the middle of first in the middle of the hush tube 12 or second on hush tube 3 tube walls gross area of aperture greater than the gross area of the aperture of opening on exhausting silencer pipe 5 tube walls.The axis parallel of the center line of intake noise reduction pipe 8 and housing 2, the center line of exhausting silencer pipe 5 is vertical with the shaft axis of housing 2.It is I chamber volume＞II chamber volume＞IV chamber volume＞III chamber volume that the volume of housing 2 inner four chambers sorts by size.Described diaphragm 6 is orthogonal with vertical clapboard 4,7, and diaphragm 6 is parallel to the shaft axis of housing 2.Right end cap 11 inboards are provided with backplate 9, between backplate 9 and right end cap 11 sound-absorbing material 10 are housed.
Working principle: after high temperature, high speed pulse pneumatic that motor is discharged entered intake noise reduction pipe 8 of the present utility model, the aperture ejection of being opened from this tube wall was expanded in air inlet chamber I, buffering, and airflow direction changes 90 °; Then, gas in the I chamber enters from the opening end of the first middle hush tube 12, and the aperture from first middle hush tube 12 tube walls sprays, in the II chamber, expand, cushion, enter in the III chamber by two breathing pipes 14 on the diaphragm 6 then and expand, cushion, aperture on hush tube 3 tube walls sucks in the middle of two second again, enter the IV of exhaust chamber expansion, buffering from the opening end of the second middle hush tube 3, suck and be drained in the atmosphere by the aperture on exhausting silencer pipe 5 tube walls at last.Because inlet and outlet hush tube, middle hush tube and breathing pipe are connected or part relation in parallel with four chambers formations in the housing, under the throttling action of aperture on breathing pipe, hush tube and the tube wall thereof, each chamber has " holding the gas pressure accumulation " effect, therefore, the high speed pulse pneumatic that enters in the housing is transformed into more stable low speed flow, has reduced noise.Each hush tube changes 90 ° with the flow direction of air-flow, thereby the air current flow direction of the housing of flowing through changes 90 ° * 5=450 ° altogether.The direction of air-flow and acoustic streaming constantly changes, and air-flow and acoustic streaming partly break away from, and phase difference is arranged, and the damping coefficient of sound wave increases, and noise descends; Hush tube all adopts spray to inhale flow structure, and the shift frequency effect is arranged, and can make low-frequency noise move to middle and high audio-frequency noise, is convenient to eliminate the noise, and will moves to the unheard ultra-high frequency of people's ear on the middle and high audio-frequency noise, plays the effect that reduces noise.Because middle hush tube and inlet and outlet hush tube are dispersed into hundreds of thigh little airflow with one big strand of air-flow, sound wave is subjected to the rubbing action of hole wall when transmitting; Simultaneously, the air-flow and the acoustic streaming of aperture ejection is poor if having time on each hush tube, thereby crest and the trough part of can also cancelling each other, and makes noise reduce greatly.In order to reduce middle and high audio-frequency noise better, also be equipped with the cotton sound-absorbing material of the ultra-fine glass of alkali-free at housing 2 inlet ends, further reduced noise.
Claims (7)
1, a kind of automobile engine exhaust silencer, comprise housing, left and right sides end cap and hush tube, it is characterized in that: housing (2) is inner to be separated into the chamber that differs in size by horizontal, vertical dividing plate, hush tube all is housed in each chamber, between each chamber by hush tube or/and the breathing pipe on the dividing plate (14) is communicated with, and air inlet chamber and exhaust chamber are communicated with outside by the inlet and outlet hush tube respectively; Middle hush tube one end opening, the other end sealing, its opening end passes dividing plate and extend in the adjacent chamber of its place chamber, has aperture (13) on the tube wall of middle hush tube.
2, automobile engine exhaust silencer according to claim 1, it is characterized in that: hush tube (3) in the middle of the hush tube (12) and second in the middle of described housing (2) inside is provided with first, this centre hush tube and inlet and outlet hush tube are an end opening, the other end sealing has aperture (13) on the tube wall of each hush tube; Diaphragm (6) and vertical clapboard (4,7) are divided into four chambers with enclosure interior, and intake noise reduction pipe (8) and exhausting silencer pipe (5) place air inlet chamber I and the IV of exhaust chamber respectively, and its opening end stretches out outside the housing (2); And hush tube (3) places II, III chamber respectively in the middle of the first middle hush tube (12) and second, its closed end and left end cap (1) welding, and opening end passes dividing plate and extend into respectively in I, the IV chamber; On diaphragm (6), be provided with the breathing pipe (14) that II, III chamber are communicated with.
3, automobile engine exhaust silencer according to claim 1 is characterized in that: the axis parallel of the center line of described intake noise reduction pipe (8) and housing (2), the center line of exhausting silencer pipe (5) is vertical with the shaft axis of housing (2).
4, automobile engine exhaust silencer according to claim 2, it is characterized in that: the gross area of the aperture of opening is greater than the sectional area of this pipe on described each tube wall, and the gross area of aperture is greater than the gross area of aperture on hush tube (3) tube wall in the middle of hush tube (12) in the middle of first or second on intake noise reduction pipe (8) tube wall, and in the middle of first in the middle of the hush tube (12) or second on hush tube (3) tube wall gross area of aperture greater than the gross area of the aperture of opening on exhausting silencer pipe (5) tube wall.
5, automobile engine exhaust silencer according to claim 2 is characterized in that: described diaphragm (6) is orthogonal with vertical clapboard (4,7), and diaphragm (6) is parallel to the shaft axis of housing (2).
6, automobile engine exhaust silencer according to claim 2 is characterized in that: it is I chamber volume＞II chamber volume＞IV chamber volume＞III chamber volume that the volume of inner four chambers of described housing (2) sorts by size.
7, automobile engine exhaust silencer according to claim 1 is characterized in that: described right end cap (11) inboard is provided with backplate (9), between backplate (9) and right end cap (11) sound-absorbing material (10) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009713 CN2816364Y (en) | 2005-08-01 | 2005-08-01 | Ic engine exhausting silencer for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009713 CN2816364Y (en) | 2005-08-01 | 2005-08-01 | Ic engine exhausting silencer for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816364Y true CN2816364Y (en) | 2006-09-13 |
Family
ID=36996172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009713 Expired - Fee Related CN2816364Y (en) | 2005-08-01 | 2005-08-01 | Ic engine exhausting silencer for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816364Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321716A (en) * | 2013-07-08 | 2013-09-25 | 山东大学 | Reactive muffler structure with combination of perforated pipes and narrow-slit resonant cavities |
| CN109209566A (en) * | 2018-09-12 | 2019-01-15 | 重庆隆鑫机车有限公司 | A kind of silencer and motorcycle |
-
2005
- 2005-08-01 CN CN 200520009713 patent/CN2816364Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321716A (en) * | 2013-07-08 | 2013-09-25 | 山东大学 | Reactive muffler structure with combination of perforated pipes and narrow-slit resonant cavities |
| CN103321716B (en) * | 2013-07-08 | 2015-09-16 | 山东大学 | The reactive muffler structure that a kind of perforated pipe and narrow slit resonant cavity combine |
| CN109209566A (en) * | 2018-09-12 | 2019-01-15 | 重庆隆鑫机车有限公司 | A kind of silencer and motorcycle |
| CN109209566B (en) * | 2018-09-12 | 2024-04-30 | 重庆隆鑫机车有限公司 | Muffler and motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Xiaoying Muffler Development Co., Ltd. Assignor: Lin Huijiang Contract record no.: 2010500000064 Denomination of utility model: Exhaust silencer of IC engine of vehicle Granted publication date: 20060913 License type: Exclusive License Record date: 20100928 |
|
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING XIAOYING MUFFLER DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: LIN HUIJIANG Effective date: 20110809 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400042 YUZHONG, CHONGQING TO: 400900 SHUANGQIAO, CHONGQING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110809 Address after: 400900 in Shuangqiao District of Chongqing City City Industrial Park D3-1 Patentee after: Chongqing Xiaoying Muffler Development Co., Ltd. Address before: 400042, No. 147, No. two, 34 Changjiang Road, Yuzhong District, Chongqing, attached to unit two Patentee before: Lin Huijiang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20140801 |
|
| EXPY | Termination of patent right or utility model |