CN204436527U - Minitruck muffler for internal combustion engine - Google Patents
Minitruck muffler for internal combustion engine Download PDFInfo
- Publication number
- CN204436527U CN204436527U CN201520063956.6U CN201520063956U CN204436527U CN 204436527 U CN204436527 U CN 204436527U CN 201520063956 U CN201520063956 U CN 201520063956U CN 204436527 U CN204436527 U CN 204436527U
- Authority
- CN
- China
- Prior art keywords
- expansion chamber
- pipe
- anger
- interior pipe
- cylindrical shell
- 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 a kind of minitruck muffler for internal combustion engine, comprise baffler cylindrical shell, the two ends of baffler cylindrical shell are provided with end cap, baffler cylinder inboard wall is fixed two pieces of dividing plates and is divided into left expansion chamber, resonant chamber and right expansion chamber three chambers, through there being interior pipe on dividing plate, pipe and interior pipe of giving vent to anger in air inlet, wherein in air inlet, the end cap of pipe from left side is directly communicated to right expansion chamber through two pieces of dividing plates, the right end sidewalls of interior pipe is provided with some inlet holes, its two ends are communicated with left expansion chamber and right expansion chamber respectively, interior pipe left end of giving vent to anger is positioned at left expansion chamber, right-hand member derives the end cap of baffler cylindrical shell right-hand member, give vent to anger an interior Guan San chamber outer wall on be equipped with some perforation, the perforation at dividing plate place that wherein right part is positioned at right side is wrapped with layer of glass.The waste gas that automobile can be sent by the utility model, through multiple denoising structure, effectively reduces the noise of the basic, normal, high each frequency range in engine exhaust gas discharge process, plays good noise reduction.
Description
technical field:
The utility model relates to mobile muffler field, particularly a kind of minitruck muffler for internal combustion engine.
background technique:
Along with country is to the raising day by day of the automobile noise control, automobile is also corresponding more and more higher to the requirement of exhaust sound.
This baffler is exclusively used in a high-end minitruck, the effect that can realize good reduction noise in less vehicle bottom space, simultaneously also sturdy and durable, not fragile.
model utility content:
For solving the deficiencies in the prior art, the utility model provides a kind of minitruck muffler for internal combustion engine.
The technical solution adopted in the utility model is:
Minitruck muffler for internal combustion engine, comprise baffler cylindrical shell, the two ends of baffler cylindrical shell are provided with end cap, it is characterized in that: described baffler cylinder inboard wall is fixed two pieces of dividing plates and is divided into left expansion chamber, resonant chamber and right expansion chamber three chambers, through there being interior pipe on dividing plate, pipe and interior pipe of giving vent to anger in air inlet, wherein in air inlet, the end cap of pipe from left side is directly communicated to right expansion chamber through two pieces of dividing plates, the right end sidewalls of interior pipe is provided with some inlet holes, its two ends are communicated with left expansion chamber and right expansion chamber respectively, interior pipe left end of giving vent to anger is positioned at left expansion chamber, right-hand member derives the end cap of baffler cylindrical shell right-hand member, give vent to anger an interior Guan San chamber outer wall on be equipped with some perforation, the perforation at dividing plate place that wherein right part is positioned at right side is wrapped with layer of glass.
Described minitruck muffler for internal combustion engine, is characterized in that: in described air inlet, the left end of pipe is connected air inlet steel pipe and steel pipe of giving vent to anger respectively with the right-hand member of interior pipe of giving vent to anger.
Compared with prior art, the beneficial effects of the utility model are:
The waste gas that automobile can be sent by the utility model, through multiple denoising structure, effectively reduces the noise of the basic, normal, high each frequency range in engine exhaust gas discharge process, plays good noise reduction.
accompanying drawing illustrates:
Fig. 1 is the utility model structural representation.
embodiment:
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail:
Minitruck muffler for internal combustion engine, comprise baffler cylindrical shell 1, the two ends of baffler cylindrical shell 1 are provided with end cap 2, baffler cylindrical shell 1 inwall is fixed two pieces of dividing plates 3 and is divided into left expansion chamber 1-1, resonant chamber 1-2 and right expansion chamber 1-3 tri-chambers, through there being interior pipe 4 on dividing plate 3, pipe 5 and interior pipe 6 of giving vent to anger in air inlet, wherein in air inlet, pipe 5 is directly communicated to right expansion chamber 1-1 from the end cap 2 in left side through two pieces of dividing plates 3, the right end sidewalls of interior pipe 4 is provided with some inlet holes, its two ends are communicated with left expansion chamber 1-1 and right expansion chamber 1-3 respectively, interior pipe 6 left end of giving vent to anger is positioned at left expansion chamber 1-1, right-hand member derives the end cap 2 of baffler cylindrical shell 1 right-hand member, interior pipe 6 of giving vent to anger is equipped with some perforation on the outer wall of three chambers, the perforation at dividing plate 3 place that wherein right part is positioned at right side is wrapped with layer of glass 7.
Engine exhaust gas enters left expansion chamber 1-1 from pipe in air inlet 5, then dilate suddenly a larger chamber by original pipeline, the acoustic impedance in passage can be undergone mutation, and makes the sound wave of some frequency can't pass silencing apparatus, and be reflected back sound source, thus effectively reduce low-frequency noise;
Then, waste gas enters right expansion chamber 1-3 by interior pipe 4, again the abrupt change of cross-section occurs, and also again reduces a part of low-frequency noise;
Then, waste gas is entered to give vent to anger interior pipe 6, has many apertures, understand some waste gas and enter resonant chamber 1-2 by aperture in the middle part of interior pipe 6 of giving vent to anger.And when airstream vibration, by aperture, making the gas in enclosed cavity also cause vibration, the gas (gas column) in aperture also vibrates simultaneously, and when the vibration frequency in air-flow is identical with the natural frequency of enclosed cavity, resonates, thus reduces noise;
Again then, waste gas flows backward along interior pipe 6 of giving vent to anger, and interior pipe 6 right part of giving vent to anger also has many apertures, and aperture surrounding is filled with glass fibre 7.To be entered by aperture at air-flow in the process of glass fibre 7 and because of friction, the acoustic energy of sound wave can be converted into frictional heat energy, thus reduce medium, high frequency noise;
Finally, waste gas exhaust silencer cylindrical shell 1.
Above-described embodiment is only preferably mode of execution of the present utility model, and in addition, the utility model can also have other implementations.It should be noted that, under the prerequisite not departing from the utility model design, any apparent improvement and modification all should fall within protection domain of the present utility model.
Claims (2)
1. minitruck muffler for internal combustion engine, comprise baffler cylindrical shell, the two ends of baffler cylindrical shell are provided with end cap, it is characterized in that: described baffler cylinder inboard wall is fixed two pieces of dividing plates and is divided into left expansion chamber, resonant chamber and right expansion chamber three chambers, through there being interior pipe on dividing plate, pipe and interior pipe of giving vent to anger in air inlet, wherein in air inlet, the end cap of pipe from left side is directly communicated to right expansion chamber through two pieces of dividing plates, the right end sidewalls of interior pipe is provided with some inlet holes, its two ends are communicated with left expansion chamber and right expansion chamber respectively, interior pipe left end of giving vent to anger is positioned at left expansion chamber, right-hand member derives the end cap of baffler cylindrical shell right-hand member, give vent to anger an interior Guan San chamber outer wall on be equipped with some perforation, the perforation at dividing plate place that wherein right part is positioned at right side is wrapped with layer of glass.
2. minitruck muffler for internal combustion engine according to claim 1, is characterized in that: in described air inlet, the left end of pipe is connected air inlet steel pipe and steel pipe of giving vent to anger respectively with the right-hand member of interior pipe of giving vent to anger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520063956.6U CN204436527U (en) | 2015-01-29 | 2015-01-29 | Minitruck muffler for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520063956.6U CN204436527U (en) | 2015-01-29 | 2015-01-29 | Minitruck muffler for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436527U true CN204436527U (en) | 2015-07-01 |
Family
ID=53604405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520063956.6U Expired - Fee Related CN204436527U (en) | 2015-01-29 | 2015-01-29 | Minitruck muffler for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594977A (en) * | 2015-01-29 | 2015-05-06 | 合肥汇凌汽车零部件有限公司 | Silencer for mini-truck internal combustion engine |
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
-
2015
- 2015-01-29 CN CN201520063956.6U patent/CN204436527U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594977A (en) * | 2015-01-29 | 2015-05-06 | 合肥汇凌汽车零部件有限公司 | Silencer for mini-truck internal combustion engine |
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20190129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |