CN201891468U - Automobile impedance composite muffler with inner heat insulation - Google Patents
Automobile impedance composite muffler with inner heat insulation Download PDFInfo
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- CN201891468U CN201891468U CN 201020610926 CN201020610926U CN201891468U CN 201891468 U CN201891468 U CN 201891468U CN 201020610926 CN201020610926 CN 201020610926 CN 201020610926 U CN201020610926 U CN 201020610926U CN 201891468 U CN201891468 U CN 201891468U
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- cylinder body
- heat insulation
- cylindrical shell
- automobile
- end cover
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Abstract
The utility model relates to an automobile impedance composite muffler with inner heat insulation. The automobile impedance composite muffler comprises a gas inlet pipe, a gas outlet pipe, a cylinder body, a front end cover and a rear end cover, wherein the gas inlet pipe is arranged on the cylinder body, the gas outlet pipe is arranged on the rear end cover, the front end cover and the rear end cover are arranged at the two ends of the cylinder body respectively, the cylinder body includes an inner cylinder body and an outer cylinder body, a heat-insulating and muffling layer is arranged between the inner cylinder body and the outer cylinder body, partition boards are arranged in the cylinder body, and muffling pipes are arranged on the partition boards. The cylinder body of the muffler adopts the double-layer structure (i.e. the inner cylinder body and the outer cylinder body), and the heat-insulating and muffling layer is arranged between the inner cylinder body and the outer cylinder body, so that the heat-insulating and muffling layer can be combined with the reactive muffling structure (the muffling pipes in the cylinder body) to form an impedance composite muffling structure. Therefore, the automobile impedance composite muffler can reduce the low-frequency, medium-frequency and high-frequency noises of an engine when used for eliminating the noises of the engine, and repress the heat radiation of high-temperature engine exhaust on surrounding parts, so as to reduce the temperature of the whole cabin body and improve the cooling performance of the engine.
Description
Technical field:
The utility model relates to a kind of passenger vehicle silencing equipment technical field, is specifically related to the heat insulation impedance composite muffler of a kind of automobile-used internal layer.
Background technique:
The acoustic wave filter structure that present passenger vehicle vent systems is used: most is reactive muffler, reactive muffler is to cause that by sudden change place of pipeline section or the other resonant cavity etc. of connecing the change of impedance produces the reflection of acoustic energy, interference in the propagation of sound process, thereby reduce by silencing apparatus to extraradial acoustic energy, to reach the silencing apparatus of noise elimination purpose.Reactive muffler is suitable for the narrow band noise and the medium and low frequency noise of control motor, but relatively poor to the high-frequency noises control effect of motor; It is not suitable for the control of the medium-high frequency noise of motor, simultaneously, silencing apparatus is connected with the vent systems of passenger vehicle, be in the hot environment for a long time, the temperature of passenger car exhaust gases can make the silencing apparatus temperature raise, and the outer surface of silencing apparatus can be as its peripheral component heat radiation, to exerting an influence in working life of peripheral component, for reducing the thermal radiation of silencing apparatus outer surface to peripheral component, method commonly used is at the peripheral thermal shield of installing of silencing apparatus at present; This structure just makes silencing apparatus need bigger installing space, makes passenger vehicle increase these component of thermal shield more, is unfavorable for car load layout and Security, increase cost, increase the process step that passenger vehicle is produced, and then increase cost of production, and its effect of heat insulation is also bad.
The model utility content:
In sum, in order to overcome the deficiency of prior art problem, the utility model provides a kind of automobile-used internal layer heat insulation impedance composite muffler, it is a double layer construction of the cylindrical shell of silencing apparatus being arranged to inner barrel and outer cylinder body, and heat insulation noise reduction layer is set between inner barrel and outer cylinder body, the reactive muffling textural association of heat insulation noise reduction layer and inner barrel band hush tube is the impedance composite noise elimination structure.When eliminating engine noise, can take into account the basic, normal, high audio-frequency noise that lowers motor.Can check simultaneously of the thermal radiation of engine exhaust high temperature again, reduce the temperature of car load warehouse, be of value to the cooling performance of motor peripheral component.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The heat insulation impedance composite muffler of a kind of automobile-used internal layer, it comprises suction tude, steam outlet pipe, cylindrical shell, front cover and rear end cover, suction tude is arranged on the cylindrical shell, steam outlet pipe is arranged on the end cap, front cover and rear end cover are separately positioned on the two ends of cylindrical shell, and wherein: described cylindrical shell comprises inner barrel and outer cylinder body, are provided with the heat insulation noise reduction layer of cylindrical shell between inner barrel and the outer cylinder body, be provided with dividing plate in the described cylindrical shell, dividing plate is provided with hush tube.
Further, be provided with two dividing plates in the described cylindrical shell, two dividing plates are divided into air-inlet cavity, noise elimination cavity and outlet chamber with cylindrical shell, and air-inlet cavity, noise elimination cavity and outlet chamber are communicated with by hush tube, and noise elimination cavity is communicated with steam outlet pipe.
Further, described front cover is identical with the rear end cover structure, includes inwall and outer wall, is provided with the heat insulation noise reduction layer of end cap between inwall and the outer wall.
Further, the fixed interface of described outer cylinder body and front cover and rear end cover all adopts the seaming edge sealing.
Further, heat insulation noise reduction layer of described cylindrical shell and the heat insulation noise reduction layer of end cap are heat insulation noise reduction cotton.
The beneficial effects of the utility model are:
1, stuffed heat insulated muffler material between the internal and external layer cylindrical shell of the utility model silencing apparatus and between the inwall of front and rear cover and the outer wall, with the reactive muffling textural association of inside band noise elimination core pipe be the impedance composite noise elimination structure.When eliminating engine noise, can take into account the basic, normal, high audio-frequency noise that lowers motor on the one hand.Play again on the other hand and check of the thermal radiation of engine exhaust high temperature, reduce the temperature of car load warehouse, be of value to the cooling performance of motor peripheral component.The compact structure of this silencing apparatus, have the height integrated.In addition, the air inlet/outlet of this silencing apparatus adopts flange-type to be connected with gas exhaust piping, can avoid rocking, throwing off between silencing apparatus air inlet/outlet and gas exhaust piping, and reliability is higher.
2, the body of the utility model silencing apparatus adopts the cold drawing molding, makes simply, is fit to produce in batches, has reduced a large amount of annexes, low cost of manufacture.
3, the utility model silencing apparatus has low cost, high strength, and advantages such as high integration, simple and reasonable, safe and reliable, be fit to the mass production requirement.Be used for the passenger vehicle vent systems, be better than existing product.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of the utility model Fig. 1;
Fig. 3 is the utility model scheme of installation on engine exhaust system.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, shown in Figure 3, the heat insulation impedance composite muffler of a kind of automobile-used internal layer, it comprises suction tude 1, steam outlet pipe 8, cylindrical shell, front cover 15 and rear end cover 7, suction tude 1 is arranged on the cylindrical shell, steam outlet pipe 8 is separately positioned on the rear end cover 7, front cover 15 and rear end cover 7 are separately positioned on the two ends of cylindrical shell, front cover 15 and rear end cover 7 structures are identical, include inwall 11 and outer wall 9, be provided with the heat insulation noise reduction layer 10 of end cap between inwall 11 and the outer wall 9, the heat insulation noise reduction layer 10 of end cap is heat insulation noise reduction cotton, cylindrical shell comprises inner barrel 4 and outer cylinder body 2, be provided with the heat insulation noise reduction layer 3 of cylindrical shell between inner barrel 4 and the outer cylinder body 2, the heat insulation noise reduction layer 3 of cylindrical shell is heat insulation noise reduction cotton, be provided with two dividing plates 5 in the cylindrical shell, dividing plate 5 is provided with hush tube 6, two dividing plates 5 are divided into air-inlet cavity 14 with cylindrical shell, noise elimination cavity 13 and outlet chamber 12, air-inlet cavity 14, noise elimination cavity 13 and outlet chamber 12 are communicated with by hush tube 6, noise elimination cavity 13 is communicated with steam outlet pipe 8, outer cylinder body 2 all adopts the seaming edge sealing with the fixed interface of front cover 15 and rear end cover 7, and the mouth of pipe of suction tude 1 and steam outlet pipe 8 is provided with adpting flange.
As shown in Figure 3, suction tude 1 of the present utility model is connected with motor by connecting tube 16, steam outlet pipe 8 of the present utility model is connected with outlet pipe 17, during use, the waste gas that motor produces enters air-inlet cavity 14 of the present utility model by connecting tube 16, enters hush tube 6 inside then, enters noise elimination cavity 13 from hush tube 6 after hush tube 6 noise reductions, flow out the utility model from steam outlet pipe 8 again, discharge from outlet pipe 17 at last.
The end cap noise reduction layer that is provided with in heat insulation noise reduction layer 3 of cylindrical shell that is provided with between inner barrel 4 of the present utility model and the outer cylinder body 2 and the forward and backward end cap can stop the thermal radiation of engine exhaust high temperature to peripheral component, reduce the temperature of car load warehouse, the cooling performance that is of value to motor, the hush pipe of heat insulation noise reduction layer and inner barrel is combined as the impedance composite noise elimination structure, can lower the basic, normal, high audio-frequency noise of motor.
Be noted that, the foregoing description is to the explanation of technical solutions of the utility model and unrestricted, other modification that is equal to replacement or makes of affiliated technical field those of ordinary skill according to prior art, as long as do not exceed the thinking and the scope of technical solutions of the utility model, all should be included within the desired interest field of the utility model.
Claims (5)
1. impedance composite muffler that automobile-used internal layer is heat insulation, it comprises suction tude (1), steam outlet pipe (8), cylindrical shell, front cover (15) and rear end cover (7), suction tude (1) is arranged on the cylindrical shell, steam outlet pipe (8) is arranged on the rear end cover (7), front cover (15) and rear end cover (7) are separately positioned on the two ends of cylindrical shell, it is characterized in that: described cylindrical shell comprises inner barrel (4) and outer cylinder body (2), be provided with the heat insulation noise reduction layer of cylindrical shell (3) between inner barrel (4) and the outer cylinder body (2), be provided with dividing plate (5) in the described cylindrical shell, dividing plate (5) is provided with hush tube (6).
2. the heat insulation impedance composite muffler of automobile-used internal layer according to claim 1, it is characterized in that: be provided with two dividing plates (5) in the described cylindrical shell, two dividing plates (5) are divided into air-inlet cavity (14), noise elimination cavity (13) and outlet chamber (12) with cylindrical shell, air-inlet cavity (14), noise elimination cavity (13) and outlet chamber (12) are communicated with by hush tube (6), and noise elimination cavity (13) is communicated with steam outlet pipe (8).
3. the heat insulation impedance composite muffler of automobile-used internal layer according to claim 1, it is characterized in that: described front cover (15) is identical with rear end cover (7) structure, include inwall (11) and outer wall (9), be provided with the heat insulation noise reduction layer of end cap (10) between inwall (11) and the outer wall (9).
4. the heat insulation impedance composite muffler of automobile-used internal layer according to claim 1 is characterized in that: described outer cylinder body (2) all adopts the seaming edge sealing with the fixed interface of front cover (15) and rear end cover (7).
5. the heat insulation impedance composite muffler of automobile-used internal layer according to claim 1 is characterized in that: the heat insulation noise reduction layer of heat insulation noise reduction layer of described cylindrical shell (3) and end cap (10) is heat insulation noise reduction cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020610926 CN201891468U (en) | 2010-11-17 | 2010-11-17 | Automobile impedance composite muffler with inner heat insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020610926 CN201891468U (en) | 2010-11-17 | 2010-11-17 | Automobile impedance composite muffler with inner heat insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891468U true CN201891468U (en) | 2011-07-06 |
Family
ID=44220946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020610926 Expired - Fee Related CN201891468U (en) | 2010-11-17 | 2010-11-17 | Automobile impedance composite muffler with inner heat insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891468U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984229A (en) * | 2010-11-17 | 2011-03-09 | 郑州精益达汽车零部件有限公司 | Vehicle inner layer heat-insulation resistance compound silencer |
| CN102410063A (en) * | 2011-10-18 | 2012-04-11 | 宁波神丰汽车部件有限公司 | Automobile muffler |
| CN102748094A (en) * | 2012-07-18 | 2012-10-24 | 绍兴文理学院 | Exhaust silencer for automobile |
| CN103696828A (en) * | 2014-01-04 | 2014-04-02 | 诸城市海得威机械有限公司 | High-frequency noise eliminating silencer for engineering vehicle |
| CN107587927A (en) * | 2017-09-22 | 2018-01-16 | 江苏江海船舶设备制造有限公司 | One kind can cooling, silencing device |
| CN114165312A (en) * | 2021-11-12 | 2022-03-11 | 沈阳航天新光集团有限公司 | Full water-cooling impedance composite exhaust silencer |
-
2010
- 2010-11-17 CN CN 201020610926 patent/CN201891468U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984229A (en) * | 2010-11-17 | 2011-03-09 | 郑州精益达汽车零部件有限公司 | Vehicle inner layer heat-insulation resistance compound silencer |
| CN102410063A (en) * | 2011-10-18 | 2012-04-11 | 宁波神丰汽车部件有限公司 | Automobile muffler |
| CN102410063B (en) * | 2011-10-18 | 2013-03-13 | 宁波神丰汽车部件有限公司 | Automobile muffler |
| CN102748094A (en) * | 2012-07-18 | 2012-10-24 | 绍兴文理学院 | Exhaust silencer for automobile |
| CN103696828A (en) * | 2014-01-04 | 2014-04-02 | 诸城市海得威机械有限公司 | High-frequency noise eliminating silencer for engineering vehicle |
| CN107587927A (en) * | 2017-09-22 | 2018-01-16 | 江苏江海船舶设备制造有限公司 | One kind can cooling, silencing device |
| CN114165312A (en) * | 2021-11-12 | 2022-03-11 | 沈阳航天新光集团有限公司 | Full water-cooling impedance composite exhaust silencer |
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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: 20110706 Termination date: 20171117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |