CN103775169A - Low-noise damping exhaust silencer - Google Patents
Low-noise damping exhaust silencer Download PDFInfo
- Publication number
- CN103775169A CN103775169A CN201210394125.8A CN201210394125A CN103775169A CN 103775169 A CN103775169 A CN 103775169A CN 201210394125 A CN201210394125 A CN 201210394125A CN 103775169 A CN103775169 A CN 103775169A
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- CN
- China
- Prior art keywords
- outlet pipe
- partition board
- suction tude
- moveable partition
- housing
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- Exhaust Silencers (AREA)
Abstract
The invention discloses a low-noise damping exhaust silencer. The low-noise damping exhaust silencer comprises a housing, an intake pipe, an expansion chamber and an exhaust pipe, and also a series of damping structures such as a movable separator with penetrating resonance through hole, wherein the front end face of the housing is in smooth transition with the sidewalls of the housing. The low-noise damping exhaust silencer is provided with a damping plate-movable separator combined structure, so that when the engine operates, the size of the intake space can be changed through two-way expansion of the damping plate and the movable separator when the exhaust pipe of the silencer exhausts gas, and simultaneously, the front end face of the housing is in smooth transition with the sidewalls of the housing so that adverse early noise caused by gas shock can be avoided, and moreover, the running noise of the engine can be further reduced and the vibration of the silencer can be reduced, and noise pollution caused by the operation of the engine is greatly reduced. The low-noise damping exhaust silencer is simple and compact without increase in the manufacturing cost.
Description
Technical field
The present invention relates to a kind of universal machine parts, particularly a kind of engine exhaust system parts.
Background technique
Motor is to produce power by the detonation of oil plant, therefore, in running, can produce larger noise; Particularly, for general purpose engine, due to easy to use, can be used for any occasion that needs power, adaptability is stronger; And in practice, residential quarters, the road maintenance etc. comparatively concentrated for residential belt, motor has played irreplaceable effect especially.And in prior art, also unsuccessful for the control of noise, cause surrounding resident to enjoy noise puzzlement, impact environment around, causes more serious environmental pollution.
For overcoming the above problems, existing engine exhaust system has adopted conventional muffler structure, although there is certain sound deadening, but noise is still larger, particularly, along with the raising of rotating speed, meanwhile, silencing apparatus is because the vibration that exhaust frequency causes is also larger, as can be seen here, existing baffler does not improve to efficiency motor and moves the noise pollution that environment is caused.
Therefore, need to improve existing engine exhaust system, can effectively reduce the running noises of motor, and with the increase of engine speed, can change the size of exhaust buffering, effectively eliminate the noise and reduce vibration thereby realize, reduce the noise pollution causing due to the operation of motor.
Summary of the invention
In view of this, the object of this invention is to provide a kind of low noise damp type exhaust silencer, can effectively reduce the running noises of motor, and with the increase of engine speed, can change the size of exhaust buffering, eliminate the noise thereby realize effectively, reduce the noise pollution causing due to the operation of motor.
Low noise damp type exhaust silencer of the present invention, comprise housing, suction tude, expansion cavity and outlet pipe, in described expansion cavity, just suction tude outlet is arranged to the damping plate being longitudinally slidably matched with expansion cavity wall, described damping plate is positioned at suction tude and exports a relative side damping spring is set; Described outlet pipe passes damping plate and is slidably matched with it;
Also comprise the moveable partition board with the resonance through hole connecting, described suction tude and outlet pipe are respectively through moveable partition board, the suction port apportion moveable partition board both sides of the air outlet of suction tude and outlet pipe, described moveable partition board coordinates in axially displaceable mode with suction tude and outlet pipe, and the air inlet side that moveable partition board is positioned at outlet pipe arranges return spring;
The suction port of described outlet pipe is just to housing front-end face, rounding off between the front-end face of described housing and housing sidewall.
Described damping spring be at least 3 so that the mode of damping plate producing balanced forces distribute; Wherein a damping spring is coated at outlet pipe.
Also comprise the discharger and the fixed plate that are positioned at expansion cavity, described fixed plate is positioned at moveable partition board front side and the vent hole of crossing of perforation is set, and described outlet pipe is forward through stationary barrier, and described suction tude is successively through stationary barrier and moveable partition board; Described discharger passes successively stationary barrier and moveable partition board and can move and coordinate vertically with moveable partition board.
Described return spring between stationary barrier and moveable partition board, return spring quantity and one by one corresponding be enclosed within outlet pipe, suction tude and discharger on corresponding with outlet pipe, suction tude and discharger.
Described return spring between stationary barrier and moveable partition board, return spring quantity and one by one corresponding be enclosed within outlet pipe, suction tude and discharger on corresponding with outlet pipe, suction tude and discharger.
The invention has the beneficial effects as follows: low noise damp type exhaust silencer of the present invention, adopt the structure of damping plate and moveable bulkhead combination, in the time that motor moves, in the time of silencer air inlet pipe exhaust, by the two-way expansion of damping plate and moveable bulkhead, change the size of admission space, simultaneously, rounding off between the front-end face of housing and housing sidewall, avoid gas shock to produce bad morning of noise, further reduce the running noises of motor the vibration that can alleviate silencing apparatus, greatly reduce the noise pollution causing due to the operation of motor, the present invention is simple and compact for structure, do not increase manufacture cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing is structural representation of the present invention.
Embodiment
Accompanying drawing is structural representation of the present invention, as shown in the figure: the low noise damp type exhaust silencer of the present embodiment, comprise housing 11, suction tude 13, expansion cavity 4 and outlet pipe 16, described expansion cavity 4 is interior, and just to suction tude 13, outlet arranges the damping plate 2 being longitudinally slidably matched with expansion cavity 4 walls, and described damping plate 2 is positioned at suction tude 13 and exports a relative side damping spring 3 is set; Described outlet pipe 16 passes damping plate 2 and is slidably matched with it;
Also comprise the moveable partition board 5 with the resonance through hole 6 connecting, described suction tude 13 and outlet pipe 16 are respectively through moveable partition board 5, suction port apportion moveable partition board 5 both sides of the air outlet of suction tude 13 and outlet pipe 16, described moveable partition board 5 coordinates in axially displaceable mode with suction tude 13 and outlet pipe 16, and the air inlet side that moveable partition board 5 is positioned at outlet pipe 16 arranges return spring;
The suction port of described outlet pipe 16 is just to housing 11 front-end faces, and rounding off between the front-end face of described housing and housing 11 sidewalls, forms rounding off structure 11a.
Described damping spring 3 at least 3 so that the mode of damping plate 2 producing balanced forces distribute; Wherein a damping spring is coated at outlet pipe 16; The present embodiment is 3 distributions triangular in shape, makes the damping plate can producing balanced forces.
Also comprise the discharger 10 and the fixed plate 9 that are positioned at expansion cavity 4, described fixed plate 9 is positioned at moveable partition board 5 front sides and the vent hole 8 excessively of perforation is set, described outlet pipe 16 is forward through stationary barrier 9, and described suction tude 13 is successively through stationary barrier 9 and moveable partition board 5; Described discharger 10 passes successively stationary barrier 9 and moveable partition board 5 and can move and coordinate vertically with moveable partition board 5, by common outlet pipe 16 and the suction tude 13 of supporting of stationary barrier 9, and can be used for supporting return spring, make whole baffler internal structure stable, and the gas of discharging is had to damping function, play and further fall low noise effect; The pressure of discharger available buffer high pressure Exhaust Gas, overflows pressurized gas fast, is beneficial to elimination noise.
Described return spring is between stationary barrier 9 and moveable partition board 5, return spring quantity and one by one corresponding be enclosed within outlet pipe 16, suction tude 13 and discharger 10 on corresponding with outlet pipe 16, suction tude 13 and discharger 10, as shown in the figure, be placed on the return spring 14 on outlet pipe 16, be placed on the return spring 12 in suction tude 13, be placed on the return spring 7 on discharger 10; Make the mounting structure of return spring stable, move smooth and easy.
For the present invention can be clearly described; above embodiment makes specifically clearly explanation to the present invention, can not limit protection scope of the present invention, therefore; the apparent modification that those of ordinary skill in the art carries out the present invention, all drops in the middle of claim scope of the present invention.
Claims (5)
1. a low noise damp type exhaust silencer, it is characterized in that: comprise housing, suction tude, expansion cavity and outlet pipe, in described expansion cavity, just suction tude outlet is arranged to the damping plate being longitudinally slidably matched with expansion cavity wall, described damping plate is positioned at suction tude and exports a relative side damping spring is set; Described outlet pipe passes damping plate and is slidably matched with it;
Also comprise the moveable partition board with the resonance through hole connecting, described suction tude and outlet pipe are respectively through moveable partition board, the suction port apportion moveable partition board both sides of the air outlet of suction tude and outlet pipe, described moveable partition board coordinates in axially displaceable mode with suction tude and outlet pipe, and the air inlet side that moveable partition board is positioned at outlet pipe arranges return spring;
The suction port of described outlet pipe is just to housing front-end face, rounding off between the front-end face of described housing and housing sidewall.
2. low noise damp type exhaust silencer according to claim 1, is characterized in that: described damping spring be at least 3 so that the mode of damping plate producing balanced forces distribute; Wherein a damping spring is coated at outlet pipe.
3. low noise damp type exhaust silencer according to claim 2, it is characterized in that: also comprise the discharger and the fixed plate that are positioned at expansion cavity, described fixed plate is positioned at moveable partition board front side and the vent hole of crossing of perforation is set, described outlet pipe is forward through stationary barrier, and described suction tude is successively through stationary barrier and moveable partition board; Described discharger passes successively stationary barrier and moveable partition board and can move and coordinate vertically with moveable partition board.
4. low noise damp type exhaust silencer according to claim 3, it is characterized in that: described return spring between stationary barrier and moveable partition board, return spring quantity and one by one corresponding be enclosed within outlet pipe, suction tude and discharger on corresponding with outlet pipe, suction tude and discharger.
5. low noise damp type exhaust silencer according to claim 4, it is characterized in that: described return spring between stationary barrier and moveable partition board, return spring quantity and one by one corresponding be enclosed within outlet pipe, suction tude and discharger on corresponding with outlet pipe, suction tude and discharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210394125.8A CN103775169A (en) | 2012-10-17 | 2012-10-17 | Low-noise damping exhaust silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210394125.8A CN103775169A (en) | 2012-10-17 | 2012-10-17 | Low-noise damping exhaust silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103775169A true CN103775169A (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210394125.8A Pending CN103775169A (en) | 2012-10-17 | 2012-10-17 | Low-noise damping exhaust silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103775169A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240089A (en) * | 2015-10-29 | 2016-01-13 | 浙江吉利汽车研究院有限公司 | Automobile silencer |
| CN106499465A (en) * | 2016-11-11 | 2017-03-15 | 成都陵川特种工业有限责任公司 | It is based on aerodynamic noise reduction improved structure |
| CN107420156A (en) * | 2016-05-23 | 2017-12-01 | 现代自动车株式会社 | Slidingtype active noise controlling silencer and its control method |
| CN110593988A (en) * | 2019-09-29 | 2019-12-20 | 重庆千能实业有限公司 | Frame assembly with sound-absorbing structure |
| CN110593989A (en) * | 2019-09-29 | 2019-12-20 | 重庆千能实业有限公司 | Vehicle frame assembly |
-
2012
- 2012-10-17 CN CN201210394125.8A patent/CN103775169A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240089A (en) * | 2015-10-29 | 2016-01-13 | 浙江吉利汽车研究院有限公司 | Automobile silencer |
| CN105240089B (en) * | 2015-10-29 | 2019-03-01 | 浙江吉利汽车研究院有限公司 | A kind of muffler of automobile |
| CN107420156A (en) * | 2016-05-23 | 2017-12-01 | 现代自动车株式会社 | Slidingtype active noise controlling silencer and its control method |
| CN107420156B (en) * | 2016-05-23 | 2020-12-25 | 现代自动车株式会社 | Sliding type active noise control silencer and control method thereof |
| CN106499465A (en) * | 2016-11-11 | 2017-03-15 | 成都陵川特种工业有限责任公司 | It is based on aerodynamic noise reduction improved structure |
| CN110593988A (en) * | 2019-09-29 | 2019-12-20 | 重庆千能实业有限公司 | Frame assembly with sound-absorbing structure |
| CN110593989A (en) * | 2019-09-29 | 2019-12-20 | 重庆千能实业有限公司 | Vehicle frame assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |