CN104594977A - Silencer for mini-truck internal combustion engine - Google Patents
Silencer for mini-truck internal combustion engine Download PDFInfo
- Publication number
- CN104594977A CN104594977A CN201510046371.8A CN201510046371A CN104594977A CN 104594977 A CN104594977 A CN 104594977A CN 201510046371 A CN201510046371 A CN 201510046371A CN 104594977 A CN104594977 A CN 104594977A
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- Prior art keywords
- pipe
- silencer
- expansion chamber
- anger
- air inlet
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Abstract
The invention discloses a silencer for a mini-truck internal combustion engine. The silencer comprises a silencer barrel, wherein end covers are mounted at the two ends of the silencer barrel; two separating plates are fixed on an inner wall of the silencer barrel, so that the silencer barrel is divided into a left expanding chamber, a resonance chamber and a right expanding chamber; an inner pipe, an inner air inlet pipe and an inner air outlet pipe penetrate through the separating plates; the inner air inlet pipe passes through the two separating plates from the end cover on the left side and is directly communicated with the right expanding chamber; a plurality of air inlets are formed in a side wall at the right end of the inner pipe; the two ends of the inner pipe are respectively communicated with the left expanding chamber and the right expanding chamber; the left end of the inner air outlet pipe is located in the left expanding chamber and the right end is guided out of the end cover at the right end of the silencer barrel; a plurality of penetrating holes are formed in the inner air outlet pipe on the partial outer walls of the three chambers; a layer of glass fiber wraps the penetrating holes of the right part on the separating plate on the right side. According to the silencer provided by the invention, the exhaust gas emitted from the vehicle can pass through a multi-denoising structure, so that the noises in low, intermediate and high frequency bands during the discharging process of the exhaust gas of the internal combustion engine are effectively reduced and an excellent denoising effect is achieved.
Description
technical field:
The present invention 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.
summary of the invention:
For solving the deficiencies in the prior art, the invention provides a kind of minitruck muffler for internal combustion engine.
The technical solution used in the present invention 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 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, beneficial effect of the present invention is:
The waste gas that automobile can be sent by the present invention, 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 structural representation of the present invention.
embodiment:
Below in conjunction with accompanying drawing, by embodiment, the present invention 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 invention, and in addition, the present invention can also have other implementations.It should be noted that, under the prerequisite not departing from the present invention's design, any apparent improvement and modification all should fall within protection scope of the present invention.
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 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 |
|---|---|---|---|
| CN201510046371.8A CN104594977A (en) | 2015-01-29 | 2015-01-29 | Silencer for mini-truck internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510046371.8A CN104594977A (en) | 2015-01-29 | 2015-01-29 | Silencer for mini-truck internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104594977A true CN104594977A (en) | 2015-05-06 |
Family
ID=53120985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510046371.8A Pending CN104594977A (en) | 2015-01-29 | 2015-01-29 | Silencer for mini-truck internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104594977A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640274A (en) * | 2015-10-30 | 2017-05-10 | 埃贝斯佩歇排气技术有限责任两合公司 | Muffler for an exhaust system of an internal combustion engine |
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
| CN108868984A (en) * | 2018-06-19 | 2018-11-23 | 爱驰威汽车零部件（盐城）有限公司 | A kind of effective muffler of automobile exhaust |
| CN111425289A (en) * | 2020-05-22 | 2020-07-17 | 无锡威孚力达催化净化器有限责任公司 | Structure for reducing noise of tail pipe and strengthening tail pipe |
| CN111828130A (en) * | 2020-06-18 | 2020-10-27 | 威迩徕德电力设备(上海)有限公司 | Diesel engine tail gas silencer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124091A (en) * | 1975-12-24 | 1978-11-07 | Toyota Jidosha Kogyo Kabushiki Kaisha | Silencer for an internal combustion engine |
| DE102008022123A1 (en) * | 2007-12-07 | 2009-06-10 | Hyundai Motor Co. Ltd. | Muffler of a motor vehicle and exhaust system using this muffler |
| CN201354664Y (en) * | 2009-01-16 | 2009-12-02 | 杨广洲 | Variable-frequency muffler |
| CN201502422U (en) * | 2009-09-27 | 2010-06-09 | 柳州利和排气控制***有限公司 | Automobile muffler |
| CN202081937U (en) * | 2011-05-05 | 2011-12-21 | 北汽福田汽车股份有限公司 | Muffler for vehicle |
| CN202209199U (en) * | 2011-08-30 | 2012-05-02 | 重庆市北碚区枫火机械制造有限公司 | Muffler |
| CN202732062U (en) * | 2012-09-17 | 2013-02-13 | 湖北通达股份有限公司 | Car exhausting muffler system for broadband frequency noise reduction |
| CN103850769A (en) * | 2014-03-12 | 2014-06-11 | 东风柳州汽车有限公司 | Automobile muffler for controlling airflow regenerated noise |
| CN204436527U (en) * | 2015-01-29 | 2015-07-01 | 合肥汇凌汽车零部件有限公司 | Minitruck muffler for internal combustion engine |
-
2015
- 2015-01-29 CN CN201510046371.8A patent/CN104594977A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124091A (en) * | 1975-12-24 | 1978-11-07 | Toyota Jidosha Kogyo Kabushiki Kaisha | Silencer for an internal combustion engine |
| DE102008022123A1 (en) * | 2007-12-07 | 2009-06-10 | Hyundai Motor Co. Ltd. | Muffler of a motor vehicle and exhaust system using this muffler |
| CN201354664Y (en) * | 2009-01-16 | 2009-12-02 | 杨广洲 | Variable-frequency muffler |
| CN201502422U (en) * | 2009-09-27 | 2010-06-09 | 柳州利和排气控制***有限公司 | Automobile muffler |
| CN202081937U (en) * | 2011-05-05 | 2011-12-21 | 北汽福田汽车股份有限公司 | Muffler for vehicle |
| CN202209199U (en) * | 2011-08-30 | 2012-05-02 | 重庆市北碚区枫火机械制造有限公司 | Muffler |
| CN202732062U (en) * | 2012-09-17 | 2013-02-13 | 湖北通达股份有限公司 | Car exhausting muffler system for broadband frequency noise reduction |
| CN103850769A (en) * | 2014-03-12 | 2014-06-11 | 东风柳州汽车有限公司 | Automobile muffler for controlling airflow regenerated noise |
| CN204436527U (en) * | 2015-01-29 | 2015-07-01 | 合肥汇凌汽车零部件有限公司 | Minitruck muffler for internal combustion engine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640274A (en) * | 2015-10-30 | 2017-05-10 | 埃贝斯佩歇排气技术有限责任两合公司 | Muffler for an exhaust system of an internal combustion engine |
| CN106640274B (en) * | 2015-10-30 | 2022-06-17 | 普瑞姆有限公司 | Muffler for an exhaust system of an internal combustion engine |
| CN108417194A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Muffler |
| CN108868984A (en) * | 2018-06-19 | 2018-11-23 | 爱驰威汽车零部件（盐城）有限公司 | A kind of effective muffler of automobile exhaust |
| CN108868984B (en) * | 2018-06-19 | 2023-05-12 | 爱驰威汽车零部件（盐城）有限公司 | Muffler for automobile exhaust pipe |
| CN111425289A (en) * | 2020-05-22 | 2020-07-17 | 无锡威孚力达催化净化器有限责任公司 | Structure for reducing noise of tail pipe and strengthening tail pipe |
| CN111828130A (en) * | 2020-06-18 | 2020-10-27 | 威迩徕德电力设备(上海)有限公司 | Diesel engine tail gas silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150506 |
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| RJ01 | Rejection of invention patent application after publication |