CN204716340U - Five cavity impedance complex mufflers - Google Patents
Five cavity impedance complex mufflers Download PDFInfo
- Publication number
- CN204716340U CN204716340U CN201520211276.4U CN201520211276U CN204716340U CN 204716340 U CN204716340 U CN 204716340U CN 201520211276 U CN201520211276 U CN 201520211276U CN 204716340 U CN204716340 U CN 204716340U
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- China
- Prior art keywords
- chamber
- steam outlet
- outlet pipe
- tail gas
- suction tude
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Abstract
The utility model discloses a kind of five cavity impedance complex mufflers, comprise housing, suction tude and steam outlet pipe is provided with in housing, suction tude runs through the first to the 5th chamber and arranges, and steam outlet pipe is provided with two, is respectively the first steam outlet pipe and the second steam outlet pipe, also air pipe is provided with in body, air pipe runs through the first chamber and arranges to the 5th chamber, and one end that air pipe is positioned at the first chamber is connected with the resonantron of one end sealing, and one end that air pipe is positioned at the 5th chamber is provided with the opening flowed into for tail gas.Suction tude is provided with at the first chamber place interferes hole, when tail gas fills and interferes ejection in hole, the noise-cancelling theory of spray shift frequency is utilized to strengthen the medium and low frequency acoustical absorptivity of silencing apparatus, simultaneously, interfere the air pipe in hole and the first chamber to form noise reduction of resonating, reduce the medium and low frequency noise in tail gas further; Be filled with silencing cotton in second chamber and the 4th chamber, resistant noise-reducing is carried out to tail gas, effectively absorb the high frequency noise in tail gas, noise reduction can better be carried out to tail gas by the form of resistance compound.
Description
Technical field
The utility model relates to technical field of automobile, and more particularly, it relates to a kind of five cavity impedance complex mufflers.
Background technique
Silencing apparatus is a kind of device stoping sound transmission and allow air-flow to pass through, and is the important measures eliminating air power noise.The device of the reduction noise on the air-flow path being mainly arranged on air powered equipment or in inlet and exhaust system.Along with the progress of science and technology, automobile obtains and applies more and more widely in people's life, people are when selecting automobile, when the comfort level taken and driving, good experience sense has become topmost selection, automotive muffler, effectively can reduce the noise that motor car engine brings and the vibration sense produced vehicle body, therefore, good silencing apparatus is the important auto parts machinery of experience sense of well driving to people's filled band.
At present, Chinese patent 201420581169.6 discloses " a kind of silencing apparatus ", comprise inclusion, the suction tude be arranged in described inclusion, outlet pipe, muffler, the first dividing plate and second partition, it is characterized in that: described inclusion is separated into the first dilatation chamber, resonant cavity and the second dilatation chamber by described first dividing plate and second partition, described suction tude, outlet pipe and muffler and described dividing plate perpendicular be arranged in described inclusion; One end of described suction tude communicates with described inclusion outside, and the other end stretches into the first dilatation chamber, is provided with perforation cone in end, and the tube wall of pipeline section being positioned at described resonant cavity is evenly equipped with air hole; Described second dilatation chamber is stretched in described muffler one end, and the other end stretches into described first dilatation chamber; Described second dilatation chamber is stretched in described outlet pipe one end, and the other end is through described inclusion and ft connection.But this structure, noise elimination form is single, and can only play erasure effect to the noise of characteristic frequency, erasure effect is poor.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is the five cavity impedance complex mufflers providing a kind of centering low frequency noise good muffling effect.
For achieving the above object, the utility model provides following technological scheme: a kind of five cavity impedance complex mufflers, comprise housing, suction tude and steam outlet pipe is provided with in housing, also be provided with four pieces of dividing plates in housing, housing is divided into the first to the 5th chamber from the first end wall to the second end wall by the dividing plate of four pieces successively;
Suction tude runs through the first to the 5th chamber and arranges, and tail gas passes in suction tude from the first chamber, suction tude in the second chamber, the part in the 4th chamber and the 5th chamber offers air hole, suction tude offers on the first position, chamber interferes hole;
Steam outlet pipe is provided with two, is respectively the first steam outlet pipe and the second steam outlet pipe, and one end of the first steam outlet pipe wears to outside the first end wall of body, and the other end is connected in the 3rd chamber through after dividing plate, and offers air hole in the part in the second chamber; Second steam outlet pipe one end wears to outside the second end wall of body, and the other end is connected in the 3rd chamber through after dividing plate, and offers air hole in the part in the 4th chamber;
Also air pipe is provided with in housing, air pipe runs through the first chamber and arranges to the 5th chamber, one end that air pipe is positioned at the first chamber is connected with the resonantron of one end sealing, one end that air pipe is positioned at the 5th chamber is provided with the opening flowed into for tail gas, and the tube wall that air pipe is positioned at the second chamber, the 3rd chamber and the 4th chamber all offers air hole.
Preferably, suction tude comprises intake elbow and air inlet straight tube, and intake elbow one end is connected with suction port, and the other end is connected with air inlet straight tube, and air inlet straight tube is sealed end away from one end of intake elbow.
Preferably, the pipeline of the first steam outlet pipe and the second steam outlet pipe is located along the same line, and air inlet straight tube, the first steam outlet pipe, the second steam outlet pipe and air pipe be arranged in parallel.
Preferably, silencing cotton is filled with in the second chamber and the 4th chamber.
Compared with prior art, enclosure interior becomes the first to the 5th chamber by four pieces of baffle for separatings, and suction tude is provided with interference hole at the first chamber place, when tail gas fills and interferes ejection in hole, the noise-cancelling theory of spray shift frequency is utilized to strengthen the medium and low frequency acoustical absorptivity of silencing apparatus, meanwhile, utilize and interfere the air pipe in hole and the first chamber to form noise reduction of resonating, reduce the medium and low frequency noise in tail gas further; Suction tude, the first steam outlet pipe, the second steam outlet pipe and air pipe all offer air hole in the second chamber and the 4th chamber, silencing cotton is filled with in second chamber and the 4th chamber, make the second chamber and the 4th chamber carry out resistant noise-reducing to tail gas, effectively absorb the high frequency noise in tail gas; Suction tude is arranged in the 5th chamber away from one end of suction port, and end part seal, the sidewall being positioned at the 5th chamber offers air hole, make tail gas from suction tude out time, by the air hole in suction tude, utilize the principle of aperture noise reduction to eliminate the medium and low frequency noise in tail gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model five cavity impedance complex muffler embodiment;
Fig. 2 is the left view of Fig. 1.
Reference character: 1, housing; 2, dividing plate; 3, suction tude; 4, steam outlet pipe; 5, air pipe; 6, silencing cotton; 11, the first end wall; 12, the second end wall; 13, suction port; 14, air outlet; 31, intake elbow; 32, air inlet straight tube; 33, hole is interfered; 51, resonantron.
Embodiment
See figures.1.and.2 and the utility model five cavity impedance complex muffler embodiment is described further.
A kind of five cavity impedance complex mufflers, comprise housing 1, be provided with suction tude 3 and steam outlet pipe 4 in housing 1, housing is divided into the first to the 5th chamber from the first end wall 11 to the second end wall 12 by dividing plate 2 successively that be also provided with 2, four pieces, four pieces of dividing plates in body; Four pieces of dividing plates 2 are arranged in parallel, and the spacing of any two pieces of adjacent dividing plates 2 is equal, and the size in five chambeies can be made close, when tail gas flows through in chamber, and the sound-deadening and noise-reducing process carrying out repeatedly to tail gas.
Suction tude 3 runs through the first to the 5th chamber and arranges, suction tude 3 comprises intake elbow 31 and air inlet straight tube 32, intake elbow 31 one end is connected with suction port 13, the other end is connected with air inlet straight tube 32, and tail gas passes in suction tude 3 by the suction port 13 on the first chamber, preferably, suction port 13 is arranged on the sidewall in the first chamber, tail gas by intake elbow 31, enters in housing 1 from the suction port 13 sidewall, being circulated in the 5th chamber from the first chamber successively by air inlet straight tube 32.Air inlet straight tube 32 in the second chamber, the part in the 4th chamber and the 5th chamber offers air hole, when tail gas stream is passed through in the second chamber, the 4th chamber and the 5th chamber, outwards spilt by the air hole be arranged on tube wall, due to the end part seal of air inlet straight tube 32 in the 5th chamber, tail gas is when spilling from the air hole on tube wall, and what utilize aperture noise reduction carries out sound-deadening and noise-reducing away to tail gas.Further, intake elbow 31 offers on the first position, chamber interferes hole 33, by interfering the setting in hole 33, when tail gas enters in intake elbow 31 from suction port 13, there is partial tail gas to spill from interference hole 33, utilize the noise-cancelling theory of spray shift frequency to strengthen the medium and low frequency acoustical absorptivity of silencing apparatus, simultaneously, interfere hole 33 that tail gas can be made to interfere, utilize interfere type noise elimination structure to strengthen the low frequency acoustical absorptivity of silencing apparatus.
Steam outlet pipe 4 is provided with two, be respectively the first steam outlet pipe and the second steam outlet pipe, the air outlet 14 on the first end wall 11 is passed through in one end of the first steam outlet pipe, with housing 1 turned on outside, the other end is connected in the 3rd chamber through after dividing plate 2, and offers air hole in the part in the second chamber; One end of second steam outlet pipe is by the air outlet 14 on the second end wall 12, and with housing 1 turned on outside, the other end is connected in the 3rd chamber through after dividing plate 2, and offers air hole in the part in the 4th chamber; Tail gas is entering after in housing 1, and noise reduction of circulating in housing 1, finally from the 3rd chamber, is derived by the first steam outlet pipe and the second steam outlet pipe, realize the effect of sound-deadening and noise-reducing in body.
Also be provided with the air pipe 5 for being passed to by the tail gas guide in the 5th chamber in the 3rd chamber in body, air pipe 5 runs through the first chamber and arranges to the 5th chamber, and the tube wall that air pipe 5 is positioned at the second chamber, the 3rd chamber and the 4th chamber all offers air hole.Tail gas is circulated to after in the 5th chamber from suction tude 3, the opening being arranged in the 5th chamber from air pipe 5 enters air pipe 5, then by air pipe 5, to the second chamber, the 3rd chamber and the conveying of the 4th chamber, by the first steam outlet pipe of being connected with the 3rd chamber and the second steam outlet pipe, discharge in housing 1.Simultaneously, one end that air pipe 5 is positioned at the first chamber is connected with the resonantron 51 of one end sealing, acting in conjunction by resonantron 51 and intake elbow 31 between the interference hole 33 in the first chamber, arranged by suction tude 3 pipe bent position and interfere hole 33, and form noise interference between the resonantron 51 on air pipe 5, produce soundproof effect.
Simultaneously, the air hole of silencing cotton 6 tail gas on the tube wall from air inlet straight tube 32, first steam outlet pipe, the second steam outlet pipe and air pipe 5 is filled with when entering the second chamber and the 4th chamber in second chamber and the 4th chamber, effectively absorb the noise in tail gas by silencing cotton 6, resistive effect is carried out to tail gas.
Further, the pipeline of the first steam outlet pipe and the second steam outlet pipe is located along the same line, air inlet straight tube 32, first steam outlet pipe, the second steam outlet pipe and air pipe 5 be arranged in parallel, the inner overall space of silencing apparatus can be made compacter, space utilization more reasonable, the flowing of tail gas in silencing apparatus is more smooth and easy, can realize good erasure effect, be conveniently mounted to vehicle interior in less space range.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a cavity impedance complex muffler, comprise housing, described housing comprises the first end wall and the second end wall, suction tude and steam outlet pipe is provided with in described housing, it is characterized in that: be also provided with four pieces of dividing plates in described housing, housing is divided into the first to the 5th chamber from the first end wall to the second end wall by dividing plate described in four pieces successively;
Described suction tude runs through the first to the 5th chamber and arranges, and tail gas passes in suction tude from the first chamber, described suction tude in the second chamber, the part in the 4th chamber and the 5th chamber offers air hole, described suction tude offers on the first position, chamber interferes hole;
Described steam outlet pipe is provided with two, is respectively the first steam outlet pipe and the second steam outlet pipe, and one end of described first steam outlet pipe wears to outside the first end wall of body, and the other end is connected in the 3rd chamber through after dividing plate, and offers air hole in the part in the second chamber; Described second steam outlet pipe one end wears to outside the second end wall of body, and the other end is connected in the 3rd chamber through after dividing plate, and offers air hole in the part in the 4th chamber;
Also air pipe is provided with in described housing, described air pipe runs through the first chamber and arranges to the 5th chamber, one end that described air pipe is positioned at the first chamber is connected with the resonantron of one end sealing, one end that described air pipe is positioned at the 5th chamber is provided with the opening flowed into for tail gas, and the tube wall that described air pipe is positioned at the second chamber, the 3rd chamber and the 4th chamber all offers air hole.
2. five cavity impedance complex mufflers according to claim 1, it is characterized in that: described suction tude comprises intake elbow and air inlet straight tube, described intake elbow one end is connected with suction port, and the other end is connected with air inlet straight tube, and described air inlet straight tube is sealed end away from one end of intake elbow.
3. five cavity impedance complex mufflers according to claim 2, it is characterized in that: the pipeline of described first steam outlet pipe and the second steam outlet pipe is located along the same line, described air inlet straight tube, the first steam outlet pipe, the second steam outlet pipe and air pipe be arranged in parallel.
4. five cavity impedance complex mufflers as claimed in any of claims 1 to 3, is characterized in that: be filled with silencing cotton in described second chamber and the 4th chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211276.4U CN204716340U (en) | 2015-04-09 | 2015-04-09 | Five cavity impedance complex mufflers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211276.4U CN204716340U (en) | 2015-04-09 | 2015-04-09 | Five cavity impedance complex mufflers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716340U true CN204716340U (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520211276.4U Expired - Fee Related CN204716340U (en) | 2015-04-09 | 2015-04-09 | Five cavity impedance complex mufflers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716340U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927315A (en) * | 2016-06-16 | 2016-09-07 | 沈阳理工大学 | Impedance compound silencer |
| CN107120165A (en) * | 2017-07-11 | 2017-09-01 | 华南理工大学 | A kind of twin exhaust pipes silencer |
-
2015
- 2015-04-09 CN CN201520211276.4U patent/CN204716340U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927315A (en) * | 2016-06-16 | 2016-09-07 | 沈阳理工大学 | Impedance compound silencer |
| CN107120165A (en) * | 2017-07-11 | 2017-09-01 | 华南理工大学 | A kind of twin exhaust pipes 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20170409 |