CN2705604Y - Exhaust muffler - Google Patents
Exhaust muffler Download PDFInfo
- Publication number
- CN2705604Y CN2705604Y CN 03214981 CN03214981U CN2705604Y CN 2705604 Y CN2705604 Y CN 2705604Y CN 03214981 CN03214981 CN 03214981 CN 03214981 U CN03214981 U CN 03214981U CN 2705604 Y CN2705604 Y CN 2705604Y
- Authority
- CN
- China
- Prior art keywords
- noise elimination
- noise
- inner tube
- outer tube
- eliminating
- 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
- 230000008030 elimination Effects 0.000 claims abstract description 49
- 238000003379 elimination reaction Methods 0.000 claims abstract description 49
- 230000003584 silencer Effects 0.000 claims description 14
- 239000002912 waste gas Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of engine exhaust muffler, it mainly comprises the interior pipe of noise elimination (3) of noise elimination outer tube (2) and band air hole, the two-port of its noise elimination outer tube (2) is shunk and interior pipe (3) closed end of eliminating the noise, the stage casing of pipe (3) is added with two or more internal baffles (5) in eliminating the noise, and manages in eliminating the noise between (3) and the noise elimination outer tube (2) corresponding to being provided with exterior siding (4) in the middle part of adjacent per two internal baffles (5).Since waste gas is wanted in discharge process twice or repeatedly more than pass the tube wall of noise elimination inner tube (3), increased the absorbed number of times of the vibrational energy in the waste gas, prolonged simultaneously the discharge route, thereby can effectively reduce noise.
Description
Technical field
The utility model relates to engine exhaust muffler, particularly a kind of agricultural vehicle exhaust silencer of single cylinder diesel.
Background technique
The engine exhaust muffler of commonly using at present, especially the exhaust silencer of the single cylinder diesel used of agricultural vehicle, generally all comprise noise elimination outer tube and noise elimination inner tube, with air-vent, be connected with anechoic sheet in the rear end of the inner noise elimination inner tube of noise elimination outer tube on its noise elimination inner tube.When engine exhaust passes through this exhaust silencer, its part directly sees through anechoic sheet and discharges, all the other can enter noise elimination inner tube outside by the air-vent of noise elimination inner tube, perhaps enter again the noise elimination inner tube and discharge from the air-vent on the anechoic sheet, even discharge to the back and forth final air-vent from anechoic sheet that repeatedly passes the noise elimination inner tube through one again.This exhaust silencer is more direct relatively owing to the waste gas discharge process, and the engine luggine power absorption is few, so the noise elimination effect is not ideal, the ambient noise that causes is too big, is unfavorable for people's health, also incompatible current more and more tighter environmental requirement.
Summary of the invention
The purpose of this utility model is to solve the unfavorable problem of noise elimination effect of above-mentioned exhaust silencer, and a kind of exhaust silencer of the better effects if of eliminating the noise is provided.
The utility model exhaust silencer comprises the noise elimination outer tube and with the noise elimination inner tube of air-vent, the two-port of its noise elimination outer tube is shunk and noise elimination inner tube closed end, is added with Internal baffle in noise elimination inner tube stage casing.
The utility model when the interior plate washer of exhaust silencer can be when two or more, can be in eliminating the noise between pipe and the noise elimination outer tube corresponding to establishing exterior siding in the middle part of adjacent per two internal baffles.Here saidly a plurality ofly can specifically adopt number, can require to determine according to concrete ambient noise by test for three, four, five or more.
The utility model is owing to increased internal baffle, or also increased exterior siding, after waste gas enters the interior pipe of eliminating the noise like this, be subjected to the obstruction of first internal baffle, be forced through in eliminating the noise the air hole on the pipe enter into eliminate the noise in the pipe outside move on, after being intercepted once more, be forced through again in eliminating the noise the hole on the pipe enter into again eliminate the noise in pipe move on; Or because the obstruct of internal baffle and exterior siding, waste gas through several times from interior pipe to outer tube, again by outer tube to repeatedly interior, pipe discharge in eliminate the noise at last.In a word, waste gas wants to pass more than twice the tube wall of noise elimination inner tube in discharge process, has increased the absorbed number of times of the vibrational energy in the waste gas, has prolonged simultaneously the discharge route, thereby can effectively reduce noise.
Description of drawings
This Figure of description is a kind of embodiment's of the utility model a structural representation.
Embodiment
In the accompanying drawing illustrated embodiment, the utility model exhaust silencer comprises air inlet pipe 1, its port and noise elimination outer tube 2 and link with closed mouthful of the noise elimination inner tube 3 of air-vent, closed mouthful of the other end of noise elimination outer tube 2 and noise elimination inner tube 3 links with blast pipe 6, be added with two Internal baffles 5 in noise elimination inner tube 3 stage casings, the middle part corresponding to two Internal baffles 5 between noise elimination inner tube 3 and noise elimination outer tube 2 is provided with outer baffle 4.
The utility model is owing to increased by two Internal baffles 5 and an outer baffle 4, after so waste gas enters noise elimination inner tube 3, be subjected to the obstruction of first Internal baffle 5, be forced through the outside that air-vent on the noise elimination inner tube 3 enters into noise elimination inner tube 3, after being subjected to outer baffle 4 obstructs, entering noise elimination inner tube 3 inside through the air-vent on the noise elimination inner tube 3 again and move on; After be subjected to second Internal baffle 5 the air-vent that again passes on the noise elimination inner tube 3 that stops enter into the outside of noise elimination inner tube 3, the outer tube 2 closing end places that are subjected to eliminating the noise stop and enter noise elimination inner tube 3 inside, discharge from blast pipe 6 at last.Waste gas successively passes the tube wall of noise elimination inner tube 3 four times in discharge process like this, has increased the absorbed number of times of the vibrational energy in the waste gas, has prolonged simultaneously it and has discharged route, thereby can greatly reduce engine noise.
Undoubtedly, the utility model exhausting silencer mechanism also can have multiple conversion and remodeling, is not limited to the concrete structure of above-mentioned embodiment, needs not to be very uniformly distribution such as Internal baffle 5 and outer baffle 4 in noise elimination inner tube 3 and noise elimination outer tube 2; The shape of air-vent is not limited to circle on the noise elimination inner tube 3, and can be triangle fully, polygon and star etc.In a word, so long as conspicuous for a person skilled in the art conversion all belongs to the scope of the utility model protection.
Claims (3)
1. exhaust silencer, mainly comprise noise elimination outer tube (2) and with the noise elimination inner tube (3) of air-vent, the two-port of its noise elimination outer tube (2) is shunk and noise elimination inner tube (3) closed end, it is characterized in that: be added with Internal baffle (5) in the stage casing of noise elimination inner tube (3).
2. exhaust silencer as claimed in claim 1 is characterized in that: interior plate washer (5) is two or more, and manages in eliminating the noise between (3) and the noise elimination outer tube (2) corresponding to being provided with exterior siding (4) in the middle part of adjacent per two internal baffles (5).
3. exhaust silencer as claimed in claim 1, it is characterized in that: the air-vent on the noise elimination inner tube (3) is star.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214981 CN2705604Y (en) | 2003-01-25 | 2003-01-25 | Exhaust muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214981 CN2705604Y (en) | 2003-01-25 | 2003-01-25 | Exhaust muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2705604Y true CN2705604Y (en) | 2005-06-22 |
Family
ID=34842724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03214981 Expired - Fee Related CN2705604Y (en) | 2003-01-25 | 2003-01-25 | Exhaust muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2705604Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032145A (en) * | 2011-09-30 | 2013-04-10 | 上海通用汽车有限公司 | Vehicle exhaust system |
| CN105091298A (en) * | 2015-09-17 | 2015-11-25 | 珠海格力电器股份有限公司 | Silencer and air conditioner |
| CN105508012A (en) * | 2015-12-28 | 2016-04-20 | 中国煤炭科工集团太原研究院有限公司 | Inlaid exhaust sound attenuation device used for coal mine underground vehicle |
| CN115419492A (en) * | 2022-08-12 | 2022-12-02 | 成都天地直方发动机有限公司 | Explosion-proof diesel engine noise eliminator |
-
2003
- 2003-01-25 CN CN 03214981 patent/CN2705604Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032145A (en) * | 2011-09-30 | 2013-04-10 | 上海通用汽车有限公司 | Vehicle exhaust system |
| CN105091298A (en) * | 2015-09-17 | 2015-11-25 | 珠海格力电器股份有限公司 | Silencer and air conditioner |
| WO2017045406A1 (en) * | 2015-09-17 | 2017-03-23 | 珠海格力电器股份有限公司 | Silencer and air conditioner |
| CN105508012A (en) * | 2015-12-28 | 2016-04-20 | 中国煤炭科工集团太原研究院有限公司 | Inlaid exhaust sound attenuation device used for coal mine underground vehicle |
| CN115419492A (en) * | 2022-08-12 | 2022-12-02 | 成都天地直方发动机有限公司 | Explosion-proof diesel engine noise eliminator |
| CN115419492B (en) * | 2022-08-12 | 2024-01-26 | 成都天地直方发动机有限公司 | Anti-explosion diesel engine muffler device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20051125 Pledge (preservation): Preservation |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yongzhong Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |