CN2816370Y - IC engine exhausting silencer for vehicle - Google Patents
IC engine exhausting silencer for vehicle Download PDFInfo
- Publication number
- CN2816370Y CN2816370Y CN 200520009756 CN200520009756U CN2816370Y CN 2816370 Y CN2816370 Y CN 2816370Y CN 200520009756 CN200520009756 CN 200520009756 CN 200520009756 U CN200520009756 U CN 200520009756U CN 2816370 Y CN2816370 Y CN 2816370Y
- Authority
- CN
- China
- Prior art keywords
- combustion engine
- hush tube
- hush
- pipe
- internal combustion
- Prior art date
- 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
Links
Images
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model relates to an IC engine exhausting silencer for a vehicle, which is characterized in that the pipe walls of all silencing pipes (3, 6, 8, 11) are provided with small holes (12); one end of each of the silencing pipe is provided with an opening, and the other end is closed; partition boards (5, 7) divides the inner part of the silencer into three chambers, wherein the chambers on both ends of the inner part of the silencer are large, the intermediate chamber II is small, and the chamber I on the air inlet end is the largest; the silencing pipes are respectively arranged in each of the chambers; the opening ends of the air inlet silencing pipe and the exhausting pipe extend outside an end cover (10); the exhaust silencing pipe (11) penetrates through all the chambers, and the closed end of the exhaust silencing pipe is fixed on a left end cover (1); the closed ends of other silencing pipes (3, 6, 8) are fixed on the partition boards or the end covers, and the opening ends extend into the previous chamber. The utility model has the advantages of large insertion loss (silencing quantity) and small power loss ratio, and the utility model can meet the requirements of relevant noise standards of China and can also meet the requirements of an automobile manufacturer to installation positions and installation methods.
Description
One, technical field:
The utility model relates to silencing apparatus, especially a kind of Vehicular internal combustion engine exhaust silencer.
Two, background technique:
At present, the sectional area of the exhaust silencer for internal-combustion engine of using on the automobile passenger vehicle, general circle, flat, the ellipse of adopting, but its suction tude and discharge tube all are the shaft axiss along silencing apparatus, from an end (or a side) air inlet, from the other end (or opposite side) exhaust, and less from same end face air inlet and exhaust.Fig. 1 is the conventional construction from same end face turnover.Among Fig. 1,1 and 5 is end caps, the 2nd, and housing, the 3rd, sound-absorbing material, the 4th, have the breathing pipe of many apertures on the tube wall, Fig. 2 is the A-A sectional view of Fig. 1.Traditional exhaust silencer for internal-combustion engine is to reduce noise by sound-absorbing material 3 sound absorptions that are filled between silencing apparatus and the breathing pipe, thereby insert loss (sound deadening capacity) not quite, general only shellfish to tens decibel is not in a measure satisfied the requirement of the relevant noise level limit of present country.
Three, content of the present utility model:
It is big that the purpose of this utility model provides a kind of insertion loss (sound deadening capacity), can satisfy a kind of exhaust silencer for internal-combustion engine that the relevant noise level limit of country requires.
For achieving the above object, concrete scheme of the present utility model is: design a kind of Vehicular internal combustion engine exhaust silencer, comprise end cap, shell, sound-absorbing material layer, hush tube and dividing plate, its main points are: all have aperture on the tube wall of all hush tubes, and all are end openings, the other end sealing; Dividing plate is separated into 3 chambers with silencing apparatus inside, and wherein two head chamber are big, and intermediate cavity II is little, inlet end chamber I maximum; Hush tube is all arranged in each chamber, and the opening end of inlet and outlet hush tube stretches out outside the end cap, and the exhausting silencer pipe runs through all chambers, and its closed end is fixed on the left end cap; Other hush tube closed end is fixed on dividing plate or the end cap, and opening end extends in the last chamber.
The center line of all hush tubes is parallel to the center line of shell.
The gross area of the aperture of opening is greater than the sectional area of this pipe on the described hush tube.Press airflow direction, the gross area of the aperture of opening is greater than the gross area of the aperture of opening on the hush tube of back on the preceding hush tube.
Hush tube is pressed the shell radially direct in the middle of described, and the total sectional area of the middle hush tube of the middle hush tube in same radial cross section is greater than the sectional area of intake noise reduction pipe or exhausting silencer pipe.
All hush tubes all have fixing more than 2.
Described sound-absorbing material layer is positioned at the two end cap inboard, and guard shield is arranged outside sound-absorbing material.
Adopt the beneficial effect of such scheme to be: insert loss (sound deadening capacity) greatly, power loss ratio is little, and it can satisfy the requirement of the relevant noise standard of country, can satisfy the requirement of auto vendor to mounting point and installation method again.
Below in conjunction with accompanying drawing the utility model is further described.
Four, description of drawings:
Fig. 1 is the structural representation of traditional combustion engine exhaust silencer.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 is the A-A sectional view of Fig. 3.
Five, embodiment:
Please see Figure 3, the utility model mainly is made up of left end cap 1, sound-absorbing material layer 2, middle hush tube 3, shell 4, dividing plate 5, middle hush tube 6, dividing plate 7, intake noise reduction pipe 8, sound-absorbing material layer 9, right end cap 10, exhausting silencer pipe 11, wherein: all have aperture 12 on the tube wall of all hush tubes (3,6,8,11), and all are end openings, the other end sealing; Dividing plate 5,7 is separated into 3 chambers with silencing apparatus inside, and wherein two head chamber are big, and intermediate cavity II is little, inlet end chamber I maximum; Hush tube is all arranged in each chamber, and the opening end of inlet and outlet hush tube stretches out outside the end cap 10, and exhausting silencer pipe 11 runs through all chamber I, II, III, IV, and its closed end is fixed on the left end cap 1; Other hush tube (3,6,8) closed end is fixed on dividing plate or the end cap, and opening end extends in the last chamber.
Further see in conjunction with Fig. 4: the center line of all hush tubes (3,6,8,11) is parallel to the center line of shell 4; It is oblate that shell 4 is.
In the utility model on the hush tube gross area of the aperture of opening 12 greater than the sectional area of this pipe.
Press airflow direction, the gross area of the aperture of opening is greater than the gross area of the aperture of opening on the hush tube of back on the preceding hush tube.
Hush tube is pressed shell 4 radially direct in the middle of described, and the middle hush tube 3 in same radial cross section or the total sectional area of middle hush tube 6 are greater than the sectional area of intake noise reduction pipe 8 or exhausting silencer pipe 11.
All hush tubes all have fixing more than 2.
Described sound-absorbing material layer 2,9 is positioned at two end cap 1,10 inboards, and guard shield is arranged outside sound-absorbing material.Be that sound-absorbing material layer is made up of sound-absorbing material and guard shield.
Working principle of the present utility model is: pipe enters silencing apparatus intake noise reduction pipe 8 and sprays from aperture before high temperature that motor is discharged, high speed pulse pneumatic are by silencing apparatus, in the I chamber, expand, cushion, hush tube 6 and from aperture, spraying in the middle of entering then, in the II chamber, expand, cushion, hush tube 3 and from aperture, spraying in the middle of then entering, in the III chamber, expand, cushion, suck by the aperture 12 of discharging hush tube 11 at last, and enter in the atmosphere by tail pipe by discharging hush tube.Because the throttling of intake noise reduction pipe, middle hush tube, exhausting silencer pipe and the effect of the gas storage of each chamber storage pressure, the high speed pulse pneumatic that enters silencing apparatus is transformed into more stable low speed flow, and noise reduces; Owing to adopt micropore jet, the shift frequency effect is arranged, reduce noise; Because air-flow and sound wave during each aperture ejection have phase difference, crest and trough can be offset a part, reduce noise; Because each hush tube all can make the flow direction of air-flow change 90 °, so the air-flow in the silencing apparatus changes 90 ° in direction * 6=540 ° altogether, part air-flow and sound wave is separated, the damping coefficient of sound wave is increased, reduce noise.In addition, in order further to reduce noise.Also be equipped with sound-absorbing material and backplate in the two end cap inboard of silencing apparatus.Make in the noise component of discharge, middle and high audio-frequency noise is further cut down.
Claims (8)
1, a kind of Vehicular internal combustion engine exhaust silencer, comprise end cap (1,10), shell (4), sound-absorbing material layer (2,9), hush tube (3,6,8,11) and dividing plate (5,7), it is characterized in that: all have aperture (12) on the tube wall of all hush tubes (3,6,8,11), and all are end openings, the other end sealing; Dividing plate (5,7) is separated into 3 chambers with silencing apparatus inside, and wherein two head chamber are big, and intermediate cavity II is little, inlet end chamber I maximum; Hush tube is all arranged in each chamber, and the opening end of inlet and outlet hush tube stretches out outside the end cap (10), and exhausting silencer pipe (11) runs through all chambers, and its closed end is fixed on the left end cap (1); Other hush tube (3,6,8) closed end is fixed on dividing plate or the end cap, and opening end extends in the last chamber.
2, Vehicular internal combustion engine exhaust silencer according to claim 1 is characterized in that: the center line of all hush tubes (3,6,8,11) is parallel to the center line of shell (4).
3, Vehicular internal combustion engine exhaust silencer according to claim 1 and 2 is characterized in that: on the hush tube the gross area of the aperture of opening (12) greater than the sectional area of this pipe.
4, Vehicular internal combustion engine exhaust silencer according to claim 3 is characterized in that: press airflow direction, the gross area of the aperture of opening is greater than the gross area of the aperture of opening on the hush tube of back on the preceding hush tube.
5, Vehicular internal combustion engine exhaust silencer according to claim 1 and 2, it is characterized in that: hush tube is pressed shell (4) radially direct in the middle of described, and the total sectional area of the middle hush tube in same radial cross section (3 or 6) is greater than the sectional area of air inlet (8) or exhausting silencer pipe (11).
6, according to claim 1 or 2 or 4 described Vehicular internal combustion engine exhaust silencers, it is characterized in that: all hush tubes all have fixing more than 2.
7, Vehicular internal combustion engine exhaust silencer according to claim 1 is characterized in that: described sound-absorbing material layer (2,9) is positioned at two end cap (1,10) inboard, and guard shield is arranged outside sound-absorbing material.
8, Vehicular internal combustion engine exhaust silencer according to claim 1 is characterized in that: described shell (4) is oblate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009756 CN2816370Y (en) | 2005-08-09 | 2005-08-09 | IC engine exhausting silencer for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009756 CN2816370Y (en) | 2005-08-09 | 2005-08-09 | IC engine exhausting silencer for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816370Y true CN2816370Y (en) | 2006-09-13 |
Family
ID=36996178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009756 Expired - Fee Related CN2816370Y (en) | 2005-08-09 | 2005-08-09 | IC engine exhausting silencer for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816370Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330588A (en) * | 2011-07-08 | 2012-01-25 | 重庆市北碚区枫火机械制造有限公司 | Strip silencer |
-
2005
- 2005-08-09 CN CN 200520009756 patent/CN2816370Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330588A (en) * | 2011-07-08 | 2012-01-25 | 重庆市北碚区枫火机械制造有限公司 | Strip silencer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2921306Y (en) | Impedance composite noise silencer | |
| KR200453213Y1 (en) | A Sub Muffler Sturucture of Vehicles Having the Largest Enging Displacement | |
| CN2809234Y (en) | Exhaust muffler for diesel engine of railway passenger car with air conditioner | |
| CN201021648Y (en) | A novel impedance compound muffling system for car engine air supply system | |
| CN2816370Y (en) | IC engine exhausting silencer for vehicle | |
| CN2816367Y (en) | IC engine exhausting silencer for automobile | |
| CN106285874A (en) | A kind of compound muffler for vehicle | |
| CN2825968Y (en) | Exhausting and purifying muffler for gasoline vehicle with electric fuel injection system | |
| CN203335193U (en) | Noise-reducing silencer and engine exhaust structure using same | |
| CN2816371Y (en) | IC engine exhausting silencer for automobile | |
| CN2816366Y (en) | IC engine exhausting silencer | |
| CN2605384Y (en) | Exhaust silencer for internal combustion engine | |
| CN2869336Y (en) | Exhaust pipe silencer for internal combustion engine | |
| CN2818806Y (en) | Exhaust silencer of IC engine of autmobile | |
| CN201671686U (en) | Automobile silencer | |
| CN2806778Y (en) | Exhaust muffler for diesel engine of railway passenger car with air conditioner | |
| CN2816368Y (en) | Gasoline engine secondary silencer for car | |
| CN2816364Y (en) | Ic engine exhausting silencer for automobile | |
| CN2818804Y (en) | Exhaust silencer of diesel engine of heavy truck | |
| CN2818808Y (en) | Exhaust silencer of IC engine of heavy truck | |
| CN1858412A (en) | Internal combustion engine exhaust silencer with variable exhaust pipe cross section | |
| CN2806779Y (en) | Exhaust muffler for internal combustion engine | |
| CN2818803Y (en) | Exhaust silencer of IC engine of vehicle | |
| CN2816372Y (en) | IC engine exhausting silencer for passenger and goods automobile | |
| CN2611608Y (en) | Novel exhaust silencer of I.C. engine |
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: IC engine exhausting silencer for vehicle Granted publication date: 20060913 License type: Exclusive License Record date: 20100928 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20120809 |