CN102536386A - Structurally modified automobile exhaust muffler assembly - Google Patents
Structurally modified automobile exhaust muffler assembly Download PDFInfo
- Publication number
- CN102536386A CN102536386A CN2011104531025A CN201110453102A CN102536386A CN 102536386 A CN102536386 A CN 102536386A CN 2011104531025 A CN2011104531025 A CN 2011104531025A CN 201110453102 A CN201110453102 A CN 201110453102A CN 102536386 A CN102536386 A CN 102536386A
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- chamber
- housing
- automobile exhaust
- exhaust muffler
- muffler assembly
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Abstract
The invention relates to a structurally modified automobile exhaust muffler assembly, which comprises a housing (1), an inlet tube (2) and an outlet tube (3). The structurally modified automobile exhaust muffler assembly is characterized in that a first partition (4) and a second partition (5) are arranged inside the housing (1) and divide an inner cavity of the housing (1) into a first chamber (6), a second chamber (7) and a third chamber (8), the inlet tube (2) penetrates through the first chamber (6) and into the second chamber (7) from a first outer end of the housing (1), the outlet tube (3) penetrates through the third chamber (8) and into the other outer end of the housing (1), the first chamber is filled with a sound absorbing material (6) to form a muffling chamber, two parallel pipes (10) are disposed at the connection of the second chamber (7) with the third chamber (8), and the third chamber (8) forms a Helmholtz resonant chamber by the aid of the pipes (10). The structurally modified automobile exhaust muffler assembly is reasonable in structure, convenient in use, high in practicality, and capable of eliminating noise of high, medium and low frequencies, and has a good muffling effect.
Description
Technical field
The present invention relates to a kind of automobile exhaust muffler, especially a kind of automobile exhaust muffler assembly that improves structure.Belong to the auto parts machinery technical field.
Background technique
Motor has two kinds of noises: pure tone with mix sound.Pure tone is the noise of narrow-band, so need to eliminate with reactive muffler; Mixing sound is wide band noise, so need to eliminate with dissipative muffler.Therefore, exhaust silencer need be installed on automobile, the chief component of noise when it is running, its effect is exactly to eliminate noise through the pulsation of reduction, decay exhaust pressure.The silencing apparatus that present automobile is adopted; Usually the structural type that adopts is that dissipative muffler of front end adds the structure that the impedance complex property silencing apparatus in rear end is combined to form; Dissipative muffler is a kind of energy absorption silencing apparatus; It is through fixing sound-absorbing porous material on the approach of crossing in air communication, and handy sound-absorbing porous material is converted into the purpose that heat energy reaches noise elimination to the friction and the damping function of sound wave with acoustic energy, and dissipative muffler is fit to eliminate middle and high audio-frequency noise.Reactive muffler is to be combined by the pipe of abrupt interface and chamber, utilizes reflection and the interference effect of sound wave etc., through changing the propagation characteristic of sound wave, hinders acoustic wave energy and outwards propagates, and mainly is suitable for eliminating narrow frequency band noise low, medium frequency.
Owing to receive the restriction of design size, under the prerequisite that does not influence engine power, the front end silencing apparatus noise reduction of technical pattern is undesirable at present, and for the noise of eliminating below the low-frequency noise, particularly 250Hz, the noise elimination effect is bad.
Summary of the invention
The objective of the invention is in order to solve the unfavorable problem of existing technology silencing apparatus noise reduction, provide a kind of under, can eliminate the automobile exhaust muffler assembly of Multiband noise the less situation of the power loss of motor.
The object of the invention can reach through following technological scheme:
A kind of automobile exhaust muffler assembly that improves structure; Comprise housing, suction tude and steam outlet pipe; Its structural feature is: in housing, be provided with first dividing plate and second partition, through said first dividing plate and second partition the housing inner chamber be separated into first chamber, second chamber and the 3rd chamber; Suction tude is passed in first chamber to the second chamber by an outer end of housing, and steam outlet pipe passes another outer end of the 3rd chamber to housing by second chamber; The part that suction tude is positioned at first chamber is provided with several equally distributed micropores, in first chamber, is filled with sound absorbing material, forms the noise elimination chamber; Be provided with two trunnions that are arranged in parallel in the joint of second chamber and the 3rd chamber, said trunnion passes second partition and connects, and makes the 3rd chamber form the helmholtz resonator chamber through said trunnion.Said second chamber is an expansion chamber.
The object of the invention can also reach through following technological scheme:
Further Technological improvement plan is: said sound absorbing material can be made up of acoustical cotton.
Further Technological improvement plan is: said micropore can formations wait branch to distribute on the radially same circumference of suction tude, this micropore can be on axial each circle of suction tude for being spacedly distributed, thereby formation perforated suction tude.
Further Technological improvement plan is: the length that said suction tude is positioned at second chamber can be positioned at two times of length of second chamber interior branch for steam outlet pipe.
Further Technological improvement plan is: said two trunnions can be arranged with respect to housing (1) parallel to an axis, form relative axis symmetry.
Further Technological improvement plan is: the length of said each trunnion can be L≤150mm.
Further Technological improvement plan is: the length of said each trunnion can L＞150mm, and each trunnion bottom can be provided with the diaphragm that is used to support trunnion.
The present invention has following outstanding beneficial effect:
1, the present invention is owing to be connected with two trunnions that are parallel to each other through second partition between expansion chamber and helmholtz resonator chamber; It is smooth and easy to make that exhaust airstream circulates in silencing apparatus; Therefore, has little, the less outstanding effect of exhaust back pressure to the power loss of motor.
2, the present invention can effectively eliminate the noise of high, medium and low Multiband owing to form resistance noise reduction chamber, three chambers of expansion chamber and helmholtz resonator chamber, particularly less than the noise of 250Hz, good noise elimination effect is arranged.
3, the present invention is rational in infrastructure, and is easy to use, practical, and long service life can reduce the noise pollution of environment, has satisfied vast civic demand.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention 1.
Wherein, 1-housing, 2-suction tude, 3-steam outlet pipe, 4-first dividing plate, 5-second partition, 6-first chamber, 7-second chamber, 8-the 3rd chamber, 9-sound absorbing material, 10-trunnion, 11-micropore.
Embodiment
Specific embodiment 1:
Fig. 1 constitutes specific embodiment 1 of the present invention.
With reference to Fig. 1; Present embodiment comprises housing 1, suction tude 2 and steam outlet pipe 3; Be provided with first dividing plate 4 and second partition 5 axially vertical in the said housing 1 with housing 1; Said first dividing plate 4 is arranged with second partition 5 spaces and housing 1 is separated into first chamber 6, second chamber 7 and the 3rd chamber 8 successively, and said suction tude 2 is passed in first chamber, 6 to second chambers 7 by housing 1 one end outsides, and it is outside that said steam outlet pipe 3 passes the 3rd chamber 8 to housing 1 the other end by second chamber 7; The part that said suction tude 2 is positioned at first chamber 6 offers several equally distributed micropores 11, and first chamber, 6 inside are filled with sound absorbing material 9, form the noise elimination chamber; Said second chamber 7 is an expansion chamber; Be connected with two trunnions that are parallel to each other 10 through second partition 5 between said second chamber 7 and the 3rd chamber 8, make the 3rd chamber 8 form the helmholtz resonator chamber through trunnion 10.
In the present embodiment, said sound absorbing material 9 is made up of the sound absorption cotton.Said suction tude 2 is positioned at a section of first chamber 6 and offers several equally distributed micropores 11, and said micropore 11 five equilibrium on the radially same circumference of suction tude 2 distributes, this micropore 11 on axial each circle of suction tude 2 for being spacedly distributed; Constitute perforated suction tude 2.The length that said suction tude 2 is positioned at second chamber 7 is two times that steam outlet pipe 3 is positioned at second chamber 7 length partly.Said two trunnions 10 are arranged with respect to housing 1 parallel to an axis, and axis is symmetrical relatively.Length L≤the 150mm of said each trunnion 10.
Other specific embodiments:
The main feature of other specific embodiments of the present invention is: the length L＞150mm of said each trunnion 10, each trunnion 10 bottom can be provided with the diaphragm that is used to support trunnion 10.All the other are with specific embodiment 1.
Need to prove; Above-described embodiment is a preferred forms of the present invention; But the technological scheme that the present invention requires to protect is not limited to this specific embodiment, anyly is equal to replacement or changes according to technological scheme of the present invention and design thereof, all belongs to protection scope of the present invention.
Claims (7)
1. automobile exhaust muffler assembly that improves structure; Comprise housing (1), suction tude (2) and steam outlet pipe (3); It is characterized in that: in housing (1), be provided with first dividing plate (4) and second partition (5), housing (1) inner chamber be separated into first chamber (6), second chamber (7) and the 3rd chamber (8) through said first dividing plate (4) and second partition (5); Suction tude (2) is passed first chamber (6) to second chamber (7) by an outer end of housing (1), and steam outlet pipe (3) passes the 3rd chamber (8) to another outer end of housing (1) by second chamber (7); The part that suction tude (2) is positioned at first chamber (6) is provided with several equally distributed micropores (11), in first chamber (6), is filled with sound absorbing material (9), forms the noise elimination chamber; Joint at second chamber (7) and the 3rd chamber (8) is provided with two trunnions that are arranged in parallel (10), and said trunnion (10) passes second partition (5) and connects, and makes the 3rd chamber (8) form the helmholtz resonator chamber through said trunnion (10).
2. a kind of automobile exhaust muffler assembly that improves structure according to claim 1, it is characterized in that: said sound absorbing material (9) is made up of acoustical cotton.
3. a kind of automobile exhaust muffler assembly that improves structure according to claim 1; It is characterized in that: said micropore (11) five equilibrium on the radially same circumference of suction tude (2) distributes, and this micropore (11) is gone up to being spacedly distributed at axial each circle of suction tude (2); Constitute perforated suction tude (2).
4. a kind of automobile exhaust muffler assembly that improves structure according to claim 1 is characterized in that: the length that said suction tude (2) is positioned at second chamber (7) is two times that steam outlet pipe (3) is positioned at second chamber (7) length partly.
5. a kind of automobile exhaust muffler assembly that improves structure according to claim 1 is characterized in that: said two trunnions (10) are arranged with respect to housing (1) parallel to an axis, form relative axis symmetry.
6. a kind of automobile exhaust muffler assembly that improves structure according to claim 1, it is characterized in that: the length of said each trunnion (10) is L≤150mm.
7. a kind of automobile exhaust muffler assembly that improves structure according to claim 1 is characterized in that: the length L＞150mm of said each trunnion (10), each trunnion (10) bottom is provided with the diaphragm that is used to support trunnion (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104531025A CN102536386A (en) | 2011-12-29 | 2011-12-29 | Structurally modified automobile exhaust muffler assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104531025A CN102536386A (en) | 2011-12-29 | 2011-12-29 | Structurally modified automobile exhaust muffler assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536386A true CN102536386A (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104531025A Pending CN102536386A (en) | 2011-12-29 | 2011-12-29 | Structurally modified automobile exhaust muffler assembly |
Country Status (1)
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| CN (1) | CN102536386A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996203A (en) * | 2012-11-29 | 2013-03-27 | 柳州柳工挖掘机有限公司 | Engine silencer |
| CN103615297A (en) * | 2013-11-18 | 2014-03-05 | 无锡红湖消声器有限公司 | Rear silencer assembly |
| CN104153846A (en) * | 2014-07-31 | 2014-11-19 | 柳州利和排气控制系统有限公司 | Auxiliary muffler for automobile engine |
| CN105986853A (en) * | 2015-02-05 | 2016-10-05 | 福特环球技术公司 | Silencer |
| CN106014544A (en) * | 2016-05-31 | 2016-10-12 | 清华大学苏州汽车研究院（相城） | Automobile gas exhaust silencer |
| WO2017144266A1 (en) * | 2016-02-26 | 2017-08-31 | Tenneco Gmbh | Exhaust muffler element and exhaust muffler |
| CN107830590A (en) * | 2017-10-20 | 2018-03-23 | 珠海凌达压缩机有限公司 | Pipeline silencer and air conditioning system |
| CN108386250A (en) * | 2018-02-28 | 2018-08-10 | 成英 | Standing wave tube for vehicle silencing apparatus acquires noise elimination resonant operational method |
| CN108716427A (en) * | 2018-02-28 | 2018-10-30 | 成英 | The integration test cooling work method eliminated the noise for vehicle |
| CN109210754A (en) * | 2018-10-18 | 2019-01-15 | 广东美的制冷设备有限公司 | silencer for air conditioner and air conditioner |
| CN109210755A (en) * | 2018-10-18 | 2019-01-15 | 广东美的制冷设备有限公司 | silencer for air conditioner and air conditioner |
| CN109210756A (en) * | 2018-10-18 | 2019-01-15 | 广东美的制冷设备有限公司 | silencer for air conditioner and air conditioner |
| CN109341051A (en) * | 2018-10-18 | 2019-02-15 | 广东美的制冷设备有限公司 | Silencer for air conditioner and air conditioner |
| CN109424390A (en) * | 2017-08-30 | 2019-03-05 | 湖北福田专用汽车有限公司 | Silencing exhaust pipe device |
| CN111058924A (en) * | 2019-11-25 | 2020-04-24 | 航天时代飞鸿技术有限公司 | Two-stroke aero-engine composite silencer and application |
| CN111878192A (en) * | 2019-05-02 | 2020-11-03 | 埃贝斯佩歇排气技术有限公司 | Exhaust muffler for an exhaust system of an internal combustion engine |
| CN113464258A (en) * | 2021-07-30 | 2021-10-01 | 重庆长安汽车股份有限公司 | Automobile exhaust silencing structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205275A (en) * | 2006-02-02 | 2007-08-16 | Calsonic Kansei Corp | Muffler |
| WO2008150024A1 (en) * | 2007-06-06 | 2008-12-11 | Calsonic Kansei Corporation | Silencer |
| CN201705429U (en) * | 2010-06-09 | 2011-01-12 | 上海天纳克排气系统有限公司 | Multifunctional helmholtz resonator |
| CN102278171A (en) * | 2010-06-09 | 2011-12-14 | 上海天纳克排气系统有限公司 | Helmholtz resonator with variable tuning pipe |
-
2011
- 2011-12-29 CN CN2011104531025A patent/CN102536386A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205275A (en) * | 2006-02-02 | 2007-08-16 | Calsonic Kansei Corp | Muffler |
| WO2008150024A1 (en) * | 2007-06-06 | 2008-12-11 | Calsonic Kansei Corporation | Silencer |
| CN201705429U (en) * | 2010-06-09 | 2011-01-12 | 上海天纳克排气系统有限公司 | Multifunctional helmholtz resonator |
| CN102278171A (en) * | 2010-06-09 | 2011-12-14 | 上海天纳克排气系统有限公司 | Helmholtz resonator with variable tuning pipe |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996203B (en) * | 2012-11-29 | 2014-12-24 | 柳州柳工挖掘机有限公司 | Engine silencer |
| CN102996203A (en) * | 2012-11-29 | 2013-03-27 | 柳州柳工挖掘机有限公司 | Engine silencer |
| CN103615297A (en) * | 2013-11-18 | 2014-03-05 | 无锡红湖消声器有限公司 | Rear silencer assembly |
| CN104153846A (en) * | 2014-07-31 | 2014-11-19 | 柳州利和排气控制系统有限公司 | Auxiliary muffler for automobile engine |
| CN105986853A (en) * | 2015-02-05 | 2016-10-05 | 福特环球技术公司 | Silencer |
| WO2017144266A1 (en) * | 2016-02-26 | 2017-08-31 | Tenneco Gmbh | Exhaust muffler element and exhaust muffler |
| CN106014544A (en) * | 2016-05-31 | 2016-10-12 | 清华大学苏州汽车研究院（相城） | Automobile gas exhaust silencer |
| CN109424390A (en) * | 2017-08-30 | 2019-03-05 | 湖北福田专用汽车有限公司 | Silencing exhaust pipe device |
| CN107830590A (en) * | 2017-10-20 | 2018-03-23 | 珠海凌达压缩机有限公司 | Pipeline silencer and air conditioning system |
| CN107830590B (en) * | 2017-10-20 | 2023-07-21 | 珠海凌达压缩机有限公司 | Pipeline muffler and air conditioning system |
| CN108386250A (en) * | 2018-02-28 | 2018-08-10 | 成英 | Standing wave tube for vehicle silencing apparatus acquires noise elimination resonant operational method |
| CN108716427A (en) * | 2018-02-28 | 2018-10-30 | 成英 | The integration test cooling work method eliminated the noise for vehicle |
| CN109210754A (en) * | 2018-10-18 | 2019-01-15 | 广东美的制冷设备有限公司 | silencer for air conditioner and air conditioner |
| CN109341051A (en) * | 2018-10-18 | 2019-02-15 | 广东美的制冷设备有限公司 | Silencer for air conditioner and air conditioner |
| CN109210756A (en) * | 2018-10-18 | 2019-01-15 | 广东美的制冷设备有限公司 | silencer for air conditioner and air conditioner |
| CN109210755A (en) * | 2018-10-18 | 2019-01-15 | 广东美的制冷设备有限公司 | silencer for air conditioner and air conditioner |
| CN111878192A (en) * | 2019-05-02 | 2020-11-03 | 埃贝斯佩歇排气技术有限公司 | Exhaust muffler for an exhaust system of an internal combustion engine |
| CN111878192B (en) * | 2019-05-02 | 2022-05-31 | 普瑞姆有限公司 | Exhaust muffler for an exhaust system of an internal combustion engine |
| US11643953B2 (en) | 2019-05-02 | 2023-05-09 | Purem GmbH | Exhaust muffler for an exhaust system of an internal combustion engine |
| CN111058924A (en) * | 2019-11-25 | 2020-04-24 | 航天时代飞鸿技术有限公司 | Two-stroke aero-engine composite silencer and application |
| CN113464258A (en) * | 2021-07-30 | 2021-10-01 | 重庆长安汽车股份有限公司 | Automobile exhaust silencing structure |
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Application publication date: 20120704 |