CN201865728U - Exhaust silencer of gasoline engine - Google Patents
Exhaust silencer of gasoline engine Download PDFInfo
- Publication number
- CN201865728U CN201865728U CN2010206305138U CN201020630513U CN201865728U CN 201865728 U CN201865728 U CN 201865728U CN 2010206305138 U CN2010206305138 U CN 2010206305138U CN 201020630513 U CN201020630513 U CN 201020630513U CN 201865728 U CN201865728 U CN 201865728U
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- CN
- China
- Prior art keywords
- partition board
- outlet pipe
- moveable partition
- baffle plate
- air inlet
- 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
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses an exhaust silencer of a gasoline engine, which comprises an air inlet pipe, an expansion cavity and an exhaust pipe, wherein a movable baffle plate with a perforated resonating through hole is arranged in the expansion cavity, the air inlet pipe and the exhaust pipe respectively penetrate through the movable baffle plate, an air outlet of the air inlet pipe and an air inlet of the exhaust pipe are respectively arranged at both sides of the movable baffle plate, the movable baffle plate is matched with the air inlet pipe and the exhaust pipe by a mode that the movable baffle plate can move along an axial direction, and the side of the movable baffle plate, which is positioned at the air inlet of the exhaust pipe, is provided with a compression spring. The utility model adopts a removable baffle plate structure. When the gasoline engine runs, the buffering effect can be automatically increased according to the exhaust frequency, and the running noise of the gasoline engine can be effectively reduced. Moreover, the noise damping frequency of the silencer is increased along with the increase of the rotating speed of an engine, and the magnitude of exhaust buffering can be changed, thereby realizing the effective damping of the noise and lowering the noise pollution caused because of the running of the gasoline engine; and the exhaust silencer discloses by the utility model has a simple and compact structure and also the manufacturing cost is not increased.
Description
Technical field
The utility model relates to a kind of universal machine parts, particularly a kind of petrol engine exhaust system component.
Background technique
Petrol engine belongs to a kind of universal machine, and miniature gasoline engine obtains using comparatively widely in every field owing to little, the convenient transportation of volume.
Petrol engine is the detonation generation power by gasoline, therefore, can produce bigger noise in the running; Particularly for miniature gasoline engine, owing to easy to use, can be used for any occasion that needs power, adaptability is stronger; And in the practice, for comparatively concentrated residential quarters, residential belt, road maintenance etc., petrol engine has played irreplaceable effect especially.And in the prior art,, causing surrounding resident to enjoy the noise puzzlement for the control of noise and unsuccessful, the environment around the influence causes than serious environmental and pollutes.
For overcoming the above problems, existing petrol engine vent systems has adopted conventional muffler structure, though have certain sound deadening, noise is still bigger, particularly along with the raising of rotating speed, existing baffler does not improve to efficiency the noise pollution that the petrol engine operation causes environment.
Therefore, need improve, can effectively reduce the running noises of petrol engine existing petrol engine vent systems, and increase with engine speed, can change the size of exhaust buffering, thereby realize effectively eliminating the noise, reduce because the noise pollution that the operation of petrol engine causes.
The model utility content
In view of this, the purpose of this utility model provides a kind of petrol engine exhaust silencer, can effectively reduce the running noises of petrol engine, and increase with engine speed, can change the size of exhaust buffering, thereby realize effectively eliminating the noise, reduce because the noise pollution that the operation of petrol engine causes.
Petrol engine exhaust silencer of the present utility model, comprise suction tude, expansion cavity and outlet pipe, be provided with the moveable partition board of the resonance through hole of perforation in the described expansion cavity, described suction tude and outlet pipe pass moveable partition board respectively, the suction port apportion moveable partition board both sides of the air outlet of suction tude and outlet pipe, described moveable partition board cooperates in axially displaceable mode with suction tude and outlet pipe, and the air inlet side that moveable partition board is positioned at outlet pipe is provided with stage clip.
Further, be positioned at the stationary barrier of crossing vent hole that the moveable partition board front side also is provided with perforation in the described expansion cavity, described outlet pipe passes stationary barrier forward, and described suction tude is passed stationary barrier and moveable partition board successively;
Further, also comprise the discharger that is positioned at expansion cavity, described discharger passes stationary barrier and moveable partition board successively and can move vertically with moveable partition board and cooperates;
Further, described stage clip between stationary barrier and moveable partition board, stage clip 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 beneficial effects of the utility model are: petrol engine exhaust silencer of the present utility model, adopt the moveable bulkhead structure, when petrol engine moves, can increase cushioning effect automatically according to the exhaust frequency, can effectively reduce the running noises of petrol engine, and increase, can change the size of exhaust buffering along with engine speed increases the silencing apparatus frequency of noise elimination, thereby realize effectively eliminating the noise, reduce because the noise pollution that the operation of petrol engine causes; The utility model is simple and compact for structure, does not increase manufacture cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
Accompanying drawing is a structural representation of the present utility model, as shown in the figure: the petrol engine exhaust silencer of present embodiment, comprise suction tude 1, expansion cavity 5 and outlet pipe 4, described expansion cavity 5 comprises chamber wall 3, front cover 12 and rear end cover 14, be provided with the moveable partition board 6 of the resonance through hole 7 of perforation in the described expansion cavity 5, described suction tude 1 and outlet pipe 4 pass moveable partition board 6 respectively, suction port apportion moveable partition board 6 both sides of the air outlet of suction tude 1 and outlet pipe 4, described moveable partition board 6 cooperates in axially displaceable mode with suction tude 1 and outlet pipe 4, the air inlet side that moveable partition board 6 is positioned at outlet pipe 4 is provided with stage clip, as shown in the figure, stage clip applies the thrust identical with the suction tude airintake direction to moveable partition board 6.
In the present embodiment, be positioned at the stationary barrier 10 of crossing vent hole 9 that moveable partition board 6 front sides also are provided with perforation in the described expansion cavity 5, described outlet pipe 4 passes stationary barrier 10 forward, and described suction tude 1 is passed stationary barrier 10 and moveable partition board 6 successively; Stationary barrier 10 is set, together support outlet pipe 4 and suction tude 1, and can be used for supporting stage clip, and make whole baffler internal structure stable, and the gas of discharging is had damping function, play the effect of further reduction noise.
In the present embodiment, also comprise the discharger 11 that is positioned at expansion cavity 5, described discharger 11 passes stationary barrier 10 and moveable partition board 6 successively and can move vertically with moveable partition board 6 and cooperates; Discharger 11 available buffer high pressure are discharged the pressure of gas, and pressurized gas are overflowed fast, are beneficial to the elimination noise.
In the present embodiment, described stage clip is between stationary barrier 10 and moveable partition board 6, stage clip quantity and outlet pipe 4, suction tude 1 and discharger 11 corresponding and corresponding one by one being enclosed within on outlet pipe 4, suction tude 1 and the discharger 11, as shown in the figure, be placed in the stage clip 2 on the outlet pipe 4, be placed in the stage clip 13 on the suction tude 1, be placed in the stage clip 8 on the discharger 11; Make the mounting structure of stage clip stable, move smooth and easy.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. petrol engine exhaust silencer, it is characterized in that: comprise suction tude, expansion cavity and outlet pipe, be provided with the moveable partition board of the resonance through hole of perforation in the described expansion cavity, described suction tude and outlet pipe pass moveable partition board respectively, the suction port apportion moveable partition board both sides of the air outlet of suction tude and outlet pipe, described moveable partition board cooperates in axially displaceable mode with suction tude and outlet pipe, and the air inlet side that moveable partition board is positioned at outlet pipe is provided with stage clip.
2. petrol engine exhaust silencer according to claim 1, it is characterized in that: be positioned at the stationary barrier of crossing vent hole that the moveable partition board front side also is provided with perforation in the described expansion cavity, described outlet pipe passes stationary barrier forward, and described suction tude is passed stationary barrier and moveable partition board successively.
3. petrol engine exhaust silencer according to claim 2 is characterized in that: also comprise the discharger that is positioned at expansion cavity, described discharger passes stationary barrier and moveable partition board successively and can move vertically with moveable partition board and cooperates.
4. petrol engine exhaust silencer according to claim 3, it is characterized in that: described stage clip between stationary barrier and moveable partition board, stage clip 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 |
|---|---|---|---|
| CN2010206305138U CN201865728U (en) | 2010-11-29 | 2010-11-29 | Exhaust silencer of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206305138U CN201865728U (en) | 2010-11-29 | 2010-11-29 | Exhaust silencer of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865728U true CN201865728U (en) | 2011-06-15 |
Family
ID=44136885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206305138U Expired - Fee Related CN201865728U (en) | 2010-11-29 | 2010-11-29 | Exhaust silencer of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865728U (en) |
Cited By (4)
| 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 |
| CN107246306A (en) * | 2017-08-09 | 2017-10-13 | 安徽江淮汽车集团股份有限公司 | A kind of muffler ASSY |
| CN109083726A (en) * | 2018-08-16 | 2018-12-25 | 厦门理工学院 | A kind of multi-mode automotive muffler |
| US11319858B2 (en) | 2018-03-30 | 2022-05-03 | Hyundai Motor Company | Muffler having movable baffle and control method of the same |
-
2010
- 2010-11-29 CN CN2010206305138U patent/CN201865728U/en not_active Expired - Fee Related
Cited By (6)
| 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 |
| CN107246306A (en) * | 2017-08-09 | 2017-10-13 | 安徽江淮汽车集团股份有限公司 | A kind of muffler ASSY |
| US11319858B2 (en) | 2018-03-30 | 2022-05-03 | Hyundai Motor Company | Muffler having movable baffle and control method of the same |
| CN109083726A (en) * | 2018-08-16 | 2018-12-25 | 厦门理工学院 | A kind of multi-mode automotive muffler |
| CN109083726B (en) * | 2018-08-16 | 2020-03-27 | 厦门理工学院 | Multi-mode automobile muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20131129 |