CN204877593U - It outes circular amortization of single tail drum singly to flow back while advancing - Google Patents
It outes circular amortization of single tail drum singly to flow back while advancing Download PDFInfo
- Publication number
- CN204877593U CN204877593U CN201520538380.4U CN201520538380U CN204877593U CN 204877593 U CN204877593 U CN 204877593U CN 201520538380 U CN201520538380 U CN 201520538380U CN 204877593 U CN204877593 U CN 204877593U
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- China
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- chamber
- pipe
- cavity
- net dish
- dividing plate
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Abstract
The utility model discloses an it outes circular amortization of single tail drum singly to flow back while advancing, including the columniform casing, be equipped with baffle and net dish in the casing, pass through the baffle, baffle and net dish are with being divided into first cavity in the casing, second cavity and third cavity, eccentric settings has the hush pipe on the baffle of left side, its pipe shaft passes behind first cavity and the baffle, stretch into to the second cavity in, eccentric settings has the blast pipe on the baffle of right side, the pipe shaft passes third cavity and net dish back, stretch into to the second cavity in, the distribution of staggering of head end that hush pipe and blast pipe stretched into the second cavity, be equipped with the amortization cotton in the first cavity outside the hush pipe pipe shaft and in the third cavity outside the blast pipe pipe shaft, wherein be equipped with the wedge bloop on the hush pipe, the inlet end of blast pipe is described for loudspeaker, the edge of baffle and net dish is turned over respectively presses into the arc surface. To sum up, the utility model discloses has the power that can promote car when starting engine, beneficial effect that noise cancelling effect is good.
Description
Technical field
The utility model relates to a kind of automobile silencing drum, and particularly a kind of single backflow is entered while go out the circular noise reduction drum of single tail.
Background technique
Single backflow is entered while go out the circular noise reduction drum of single tail to be also called variable back pressure noise reduction drum, it can regulate the size of back pressure according to the rotating speed of motor car engine, certain lifting can be had to the power of automobile, simultaneously, itself or a kind ofly stop sound transmission and the device that allows air-flow to pass through, be the important measures eliminating car hollow aerodynamic force noise.But, in prior art, automobile silencing drum all adopts in line hush pipe, carries out noise reduction by the through hole on hush pipe tube wall and the silencing cotton outside tube wall, due in line hush pipe smooth in exhaust, without back pressure chamber in drum, castering action be there is no to the power of motor during vehicle starting, simultaneously, through hole in prior art on hush pipe tube wall is manhole, noise reduction resistance is little, and erasure effect is not obvious, and noise is large.In sum, also there is following shortcoming in prior art: do not have power-lift to motor; Erasure effect is not obvious.
Summary of the invention
The purpose of this utility model is, provides a kind of single backflow to enter while go out the circular noise reduction drum of single tail.The utility model has the power of motor when can promote vehicle starting, the feature of good muffling effect, in addition, also has smooth in exhaust, stabilized structure, the feature that silencing cotton not easily loosens.
The technical solution of the utility model: a kind of single backflow is entered while go out the circular noise reduction drum of single tail, include columniform housing, two head ends of housing are respectively provided with 1 piece of baffle plate, enclosure interior is provided with dividing plate, dividing plate is connected with establishing meshed net dish through connecting rod, pass through baffle plate, dividing plate and net dish will be divided into the first chamber in housing, second chamber and the 3rd chamber, on the baffle plate of left side, eccentric setting has hush pipe, its pipe shaft is through after the first chamber and dividing plate, its head end stretches in the second chamber, on right-hand apron, eccentric setting has outlet pipe, its pipe shaft is through after the 3rd chamber and net dish, its head end stretches in the second chamber, the head end that hush pipe and outlet pipe stretch into the second chamber is in staggered distribution, silencing cotton is provided with in the 3rd chamber in the first chamber outside hush pipe pipe shaft and outside outlet pipe pipe shaft, wherein said hush pipe is provided with and caves inward and the wedge shape bloop distributed in the shape of a spiral, and the opening direction of wedge shape bloop is contrary with airflow direction, the inlet end of described outlet pipe is horn-like, the edge of described dividing plate and net dish is respectively by the arc surface turned over into perpendicular to dividing plate and net dish, the pipe shaft of the described hush pipe being positioned at the first chamber and the outlet pipe being positioned at the 3rd chamber is provided with steel wire.
Aforesaid single backflow is entered while go out the circular noise reduction drum of single tail, and the described hush pipe distance put between one end of the second chamber and net dish is 2-3cm, and the outlet pipe distance put between one end of the second chamber and dividing plate is 2-3cm.
Compared with prior art, the utility model carries out a point chamber by adopting net dish and dividing plate in housing, hush pipe and outlet pipe converge at the second chamber, second chamber is back pressure chamber, then air-flow discharges from the outlet pipe shifted to install with it after entering back pressure chamber from hush pipe, air-flow forms back pressure in back pressure chamber, promotes torsion during low engine speeds.Simultaneously, by the bloop on hush pipe to be changed into the wedge shape bloop of spiral distribution from traditional circular bloop, wedge shape bloop is by carrying out HALF OPENING rolling to noise reduction tube wall, the ramp shaped guiding gutter making it be formed to cave inward, the opening direction of all wedge shape bloops is consistent, and its opening direction is contrary with airflow direction, and noise reduction resistance is larger, air-flow very easily flows out hush pipe through hush pipe and enters silencing cotton layer, good muffling effect.In addition, the inlet end of the utility model outlet pipe is horn-like, smooth in exhaust; The edge of net dish and dividing plate designs for arc surface, and rouse the area of contact of inwall more greatly with noise reduction, be easier to weld, structure is more firm; Hush pipe and outlet pipe are provided with steel wire, and silencing cotton is more easily twined and ties up, silencing cotton not easily loosens.In sum, the utility model has the power of motor when can promote vehicle starting, the beneficial effect of good muffling effect.
Compared with flat noise reduction drum, profile of the present utility model is cylindrical, and the volume of cylindrical chamber is less, airflow smooth degree is lower, the back pressure formed is comparatively large, promotes comparatively obvious, but promote less to the horsepower of rev-happy engine to the torsion of motor during vehicle starting; The utility model is specially adapted to the automobile that travelling speed is comparatively slow, starting power demand is higher.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is shell construction schematic diagram;
Accompanying drawing 3 is hush pipe sectional view.
Description of reference numerals: 1-housing, 2-baffle plate, 3-dividing plate, 4-net dish, 5-first chamber, 6-second chamber, 7-the 3rd chamber, 8-hush pipe, 9-outlet pipe, 10-wedge shape bloop, 11-connecting rod, 12-mesh, 13-inlet end, 14-steel wire.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation limited the utility model.
Embodiment of the present utility model: a kind of single backflow is entered while go out the circular noise reduction drum of single tail, as illustrated in the accompanying drawings from 1 to 3, include columniform housing 1, two head ends of housing 1 are respectively provided with 1 piece of baffle plate 2, housing 1 inside is provided with dividing plate 3, dividing plate 3 is connected with the net dish 4 being provided with mesh 12 through connecting rod 11, by baffle plate 2, dividing plate 3 and net dish 4 will be divided into the first chamber 5 in housing 1, second chamber 6 and the 3rd chamber 7, on left side baffle plate 2, eccentric setting has hush pipe 8, its pipe shaft is through after the first chamber 5 and dividing plate 3, its head end stretches in the second chamber 6, on right-hand apron 2, eccentric setting has outlet pipe 9, its pipe shaft is through after the 3rd chamber 7 and net dish 4, its head end stretches in the second chamber 6, the head end that hush pipe 8 and outlet pipe 9 stretch into the second chamber 6 is in staggered distribution, silencing cotton is provided with in the 3rd chamber 7 in the first chamber 5 outside hush pipe 8 pipe shaft and outside outlet pipe 9 pipe shaft, wherein said hush pipe 8 is provided with and caves inward and the wedge shape bloop 10 distributed in the shape of a spiral, and the opening direction of wedge shape bloop 10 is contrary with airflow direction, the inlet end 13 of described outlet pipe 9 is horn-like, the edge of described dividing plate 3 and net dish 4 is respectively by the arc surface turned over into perpendicular to dividing plate 3 and net dish 4, the pipe shaft of the described hush pipe 8 being positioned at the first chamber 5 and the outlet pipe 9 being positioned at the 3rd chamber 7 is provided with steel wire 14.
Described hush pipe 8 distance put between one end of the second chamber 6 and net dish 4 is 2-3cm, and outlet pipe 9 width put between one end of the second chamber and dividing plate 3 is 2-3cm.
Working principle of the present utility model: air-flow enters in the housing 1 of noise reduction drum from hush pipe 8, when through hush pipe 8, because the noise reduction resistance of wedge shape bloop 10 is larger, air-flow is easy to flow out hush pipe 8 after wedge shape bloop 10 water conservancy diversion, enter the silencing cotton layer outside hush pipe 8, good muffling effect, air-flow flows through hush pipe 8 and enters the second chamber 6, fraction enters the silencing cotton layer in the 3rd chamber 7 by the mesh 12 on net dish 4, further raising erasure effect, residual gas stream discharges noise reduction drum through outlet pipe 9, because hush pipe 8 and outlet pipe 9 shift to install, air-flow forms back pressure in the second chamber 6, improve the power of motor during vehicle starting.
As preferably, described hush pipe 8 distance put between one end of the second chamber 6 and net dish 4 is 2-3cm, and outlet pipe 9 width put between one end of the second chamber 6 and dividing plate 3 is 2-3cm.Because when apart from time too far away, air-flow is easy to enter outlet pipe 9 thus derives noise reduction drum, and the back pressure of formation is not obvious; When distance is too near, air-flow is difficult to enter outlet pipe 9, affects the discharge of air-flow.
Claims (2)
1. a single backflow is entered while go out the circular noise reduction drum of single tail, it is characterized in that: include columniform housing (1), the two ends of housing (1) are respectively provided with 1 piece of baffle plate (2), housing (1) inside is provided with dividing plate (3), dividing plate (3) is connected with the net dish (4) being provided with mesh (12) through connecting rod (11), baffle plate (2), dividing plate (3) and net dish (4) are divided into the first chamber (5) by housing (1), second chamber (6) and the 3rd chamber (7), hush pipe (8) is had at the upper eccentric setting of a lateral retaining plate (2), its pipe shaft is through after the first chamber (5) and dividing plate (3), its head end stretches in the second chamber (6), outlet pipe (9) is had at the upper eccentric setting of opposite side baffle plate (2), its pipe shaft is through after the 3rd chamber (7) and net dish (4), its head end stretches in the second chamber (6), the head end that hush pipe (8) and outlet pipe (9) stretch into the second chamber (6) is in staggered distribution, silencing cotton is provided with in the 3rd chamber (7) in the first chamber (5) outside hush pipe (8) pipe shaft and outside outlet pipe (9) pipe shaft, wherein said hush pipe (8) is provided with and caves inward and the wedge shape bloop (10) distributed in the shape of a spiral, and the opening direction of wedge shape bloop (10) is contrary with airflow direction, the inlet end (13) of described outlet pipe (9) is for horn-like, the edge of described dividing plate (3) and net dish (4) is respectively by the arc surface turned over into perpendicular to dividing plate (3) and net dish (4), the pipe shaft of the described hush pipe (8) being positioned at the first chamber (5) and the outlet pipe (9) being positioned at the 3rd chamber (7) is provided with steel wire (14).
2. single backflow according to claim 1 is entered while go out the circular noise reduction drum of single tail, it is characterized in that: described hush pipe (8) distance put between one end of the second chamber (6) and net dish (4) is 2-3cm, outlet pipe (9) distance put between one end of the second chamber and dividing plate (3) is 2-3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538380.4U CN204877593U (en) | 2015-07-23 | 2015-07-23 | It outes circular amortization of single tail drum singly to flow back while advancing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538380.4U CN204877593U (en) | 2015-07-23 | 2015-07-23 | It outes circular amortization of single tail drum singly to flow back while advancing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877593U true CN204877593U (en) | 2015-12-16 |
Family
ID=54821976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520538380.4U Expired - Fee Related CN204877593U (en) | 2015-07-23 | 2015-07-23 | It outes circular amortization of single tail drum singly to flow back while advancing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877593U (en) |
Cited By (2)
| 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 |
| CN109339921A (en) * | 2018-11-16 | 2019-02-15 | 蚌埠学院 | A kind of automobile exhaust muffler |
-
2015
- 2015-07-23 CN CN201520538380.4U patent/CN204877593U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN109339921A (en) * | 2018-11-16 | 2019-02-15 | 蚌埠学院 | A kind of automobile exhaust 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: 20151216 Termination date: 20170723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |