CN204239016U - A kind of enhancement mode reactive muffler for automobile - Google Patents
A kind of enhancement mode reactive muffler for automobile Download PDFInfo
- Publication number
- CN204239016U CN204239016U CN201420525787.9U CN201420525787U CN204239016U CN 204239016 U CN204239016 U CN 204239016U CN 201420525787 U CN201420525787 U CN 201420525787U CN 204239016 U CN204239016 U CN 204239016U
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- Prior art keywords
- chamber
- baffle
- suction tude
- hole
- outlet pipe
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Abstract
The utility model provides a kind of enhancement mode reactive muffler for automobile, comprise the closed inner chamber and suction tude, outlet pipe, interpolation pipe and connecting plate that are made up of shell and front cover and rear end cover, inner chamber comprises the first chamber, the second chamber, the 3rd chamber and the 4th chamber that are separated successively by the first baffle plate, second baffle and third gear plate; First chamber and the second chamber by suction tude and on the first punch block be in communication with the outside, 3rd chamber is in communication with the outside by the second punch block on outlet pipe, first chamber by described interpolation pipe and on the 3rd punch block interconnect with the 3rd chamber and the 4th chamber respectively, connecting plate is connected to described second baffle and third gear plate.The utility model arranges by chamber and dividing plate the discharge stroke increasing waste gas, and the size rationally arranging inner chamber and suction tude, outlet pipe and interpolation pipe weakens mid-frequency noise further, make soundproof effect outstanding when controlling cost.
Description
Technical field
The utility model relates to silencing apparatus field, more specifically, particularly relates to a kind of enhancement mode reactive muffler for automobile.
Background technique
Exhaust sound is as a chief component of automobile noise, remarkable on the impact of car load, and silencing apparatus is the major control means of exhaust sound.In automotive muffler field, mainly contain three kinds of common silencing apparatuss, i.e. dissipative muffler, reactive muffler and impedance composite muffler.
Wherein, dissipative muffler mainly utilizes sound-absorbing porous material (being commonly called as acoustical cotton) to reduce noise, arranges in the duct, just constitute dissipative muffler on inwall sound-absorbing material being fixed on air-flow path or according to certain way.When sound wave enters dissipative muffler, a part of acoustic energy rubs and changes into thermal energy consumption and dissipates in the hole of porous material, makes to be weakened by the sound wave of silencing apparatus.Dissipative muffler just looks like the pure resistor element circuit in electricity, and sound-absorbing material is similar to resistance.Therefore, people just call dissipative muffler this silencing apparatus, and dissipative muffler is good to medium-high frequency soundproof effect, poor to low frequency soundproof effect.
Reactive muffler (being also referred to as reflective) is primarily of dividing plate, expansion chamber composition.Utilize waste gas to reflect in these chambers, mutually interfere (friction) and reach soundproof effect, large chamber is comparatively conducive to its process noise.In addition, working method is different, and the volume ratio of reactive muffler is resistive wants large, is also thus installed in tailstock place more.Centering, the obvious feature of low-frequency noise inhibition.
And impedance composite muffler, as its name suggests, its structure incorporates the feature of first two silencing apparatus, not only be existing acoustical cotton but also have expansion chamber, dissipative muffler and reactive muffler two kinds of silencing apparatuss mutual length when corresponding engine speed, impedance composite muffler then balances two kinds of characteristics well, and corresponding scope is wide, volume is more flexible, but cost is also relatively high.
In prior art and practical field, reactive muffler is extensive use the most, and this is too busy to get away to its manufacture cost and corresponding erasure effect.
For reactive muffler, in the prior art, although its noise-cancelling theory is all similar, is all utilize chamber and dividing plate (also becoming baffle plate) to carry out roundtrip to waste gas, reaches soundproof effect.But, if a high performance reactive muffler only has chamber and dividing plate to be far from being enough, for the design of different chamber design and the quantitative design of dividing plate and the thickness of material etc., different soundproof effects can be brought.So, this is also the art one of reason doing constantly research and development improvement at antagonism silencing apparatus always, although various big and small, panoramic reactive muffler is hundreds and thousands of, but between the reactive muffler of different internal structure design, its soundproof effect brought also has notable difference.
Particularly, existing general silencing apparatus, make improvements in the quantity of chamber and dividing plate often, if and when considering cost and other parameter indexs, its soundproof effect is unsatisfactory, especially its other except dividing plate and chamber are not such as bored a hole, intubate and taking into consideration in factors such as length sizes.Therefore, the silencing apparatus how production department's soundproof effect is more excellent when cost is lower is then the required problem improved of current silencing apparatus technician.
Model utility content
In view of the above, the purpose of this utility model is to provide a kind of enhancement mode reactive muffler for automobile, for solving the dissatisfactory problem of silencing apparatus soundproof effect that silencing apparatus in prior art is produced when cost is limited.
For achieving the above object and other relevant objects, the utility model provides following technological scheme:
A kind of enhancement mode reactive muffler for automobile, comprise: the closed inner chamber be made up of shell and front cover and rear end cover, comprises the first chamber, the second chamber, the 3rd chamber and the 4th chamber that are separated successively by the first baffle plate, second baffle and third gear plate in described inner chamber; Suction tude; Described suction tude successively vertical tube runs through described front cover and the first baffle plate, the tube wall being positioned at the described suction tude of the first chamber offers the first punch block, and described second chamber is in communication with the outside; Outlet pipe; Described outlet pipe vertically runs through described rear end cover and third gear plate and second baffle successively, the tube wall being positioned at the described outlet pipe of the 3rd chamber offers the second punch block, and the described outlet pipe one end being positioned at the second chamber is provided with the inner cap for sealing described outlet pipe, described 3rd chamber is in communication with the outside; And interpolation pipe, described interpolation pipe vertically runs through described first baffle plate, second baffle and third gear plate successively, and the tube wall being positioned at the described interpolation pipe of described 3rd chamber offers the 3rd punch block, described first chamber by described interpolation pipe and on the 3rd punch block interconnect with described 3rd chamber and the 4th chamber respectively; Connecting plate, two ends are connected to described second baffle and third gear plate, and described connecting plate and described suction tude are located along the same line.
Preferably, described first baffle plate is provided with the first through hole and the second through hole, and wherein, described first through hole is for connecting one end of described interpolation pipe, and described second through hole is for connecting described suction tude.
Preferably, described second baffle is provided with third through-hole and fourth hole, and wherein, described third through-hole is for connecting the other end of described interpolation pipe, and described fourth hole is for connecting described outlet pipe.
Preferably, the length of described inner chamber is set to 525mm ± 5mm, and external diameter is 180mm, and the thickness of shell is about 10mm, wherein, the first chamber is 105mm ± 2mm, second chamber is 200mm ± 3mm, and the 3rd chamber is 120mm ± 2mm, and the 4th chamber is 100mm ± 2mm.
As mentioned above, the utility model has following beneficial effect: a kind of enhancement mode reactive muffler for automobile of the utility model arranges by chamber and dividing plate the discharge stroke increasing waste gas, simultaneously by rationally arranging inner chamber and suction tude, outlet pipe and interpolation pipe size weaken mid-frequency noise further, simultaneously also by structure that Reasonable Arrangement is bored a hole, effectively regulate the expansion pressure of waste gas in individual chamber, make soundproof effect seem outstanding under limited cost control.
Accompanying drawing explanation
In order to be illustrated more clearly in the scheme in the utility model embodiment, be briefly described to describing the required accompanying drawing used in specific embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of enhancement mode reactive muffler for automobile of the utility model.
Fig. 2 is shown as the sectional view in A-A direction in Fig. 1.
Fig. 3 is shown as the sectional view in B-B direction in Fig. 1.
Fig. 4 is the schematic diagram of the planar development on half tube wall of a kind of the second punch block in the enhancement mode reactive muffler of automobile of the utility model.
Fig. 5 is the schematic diagram of the planar development on half tube wall of a kind of the first punch block in the enhancement mode reactive muffler of automobile of the utility model.
Fig. 6 is the schematic diagram of the planar development on half tube wall of a kind of the 3rd punch block in the enhancement mode reactive muffler of automobile of the utility model.
Drawing reference numeral explanation
1 shell
2 front covers
3 rear end covers
4 inner chambers
41 first chambers
42 second chambers
43 the 3rd chambers
44 the 4th chambers
5 first baffle plates
51 first through holes
52 second through holes
6 second baffles
61 third through-holes
62 fourth holes
7 third gear plates
8 suction tude
81 first punch blocks
9 outlet pipes
91 second punch blocks
92 inner caps
10 interpolation pipes
101 the 3rd punch blocks
11 connecting plates
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on embodiment of the present utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, belong to the scope of the utility model protection.
Please refer to Fig. 1 and composition graphs 2 and Fig. 3, show the structural representation of a kind of enhancement mode reactive muffler for automobile of the utility model, from figure, described a kind of enhancement mode reactive muffler for automobile comprises the closed inner chamber 4 be made up of shell 1 and front cover 2 and rear end cover 3, and described inner chamber 4 comprises the first chamber 41, second chamber 42, the 3rd chamber 43 and the 4th chamber 44 that are separated successively by the first baffle plate 5, second baffle 6 and third gear plate 7; Described reactive muffler also comprises suction tude 8, outlet pipe 9, interpolation pipe 10 and connecting plate 11, wherein, described suction tude 8 successively vertical tube runs through described front cover 2 and the first baffle plate 5, the tube wall being positioned at the described suction tude 8 of the first chamber 41 offers the first punch block 81, and described second chamber 42 is in communication with the outside; Described outlet pipe 9 vertically runs through described rear end cover 3 and third gear plate 7 and second baffle 6 successively, the tube wall being positioned at the described outlet pipe 9 of the 3rd chamber 43 offers the second punch block 91, and described outlet pipe 9 one end being positioned at the second chamber 42 is provided with the inner cap 92 for sealing described outlet pipe 9, described 3rd chamber 43 is in communication with the outside; Described interpolation pipe 10 vertically runs through described first baffle plate 5, second baffle 6 and third gear plate 7 successively, and the tube wall being positioned at the described interpolation pipe 10 of described 3rd chamber 43 offers the 3rd punch block 101, described first chamber 41 by described interpolation pipe 10 and on the 3rd punch block 101 interconnect with described 3rd chamber 43 and the 4th chamber 44 respectively
In addition, described connecting plate 11 two ends are connected to described second baffle 6 and third gear plate 7, and described connecting plate 11 and described suction tude 8 are located along the same line.
Particularly, a kind ofly have in the reactive muffler of inner tube structure above-mentioned, because the waste gas that enters from suction tude 8 uses engine direct to run in, therefore its pressure is larger, and the second baffle 6 relative with suction tude 8 after being in of long duration easily distortion even come off, in order to avoid above-mentioned situation, above-mentioned connecting plate 11 is adopted to connect described second baffle 6 and third gear plate 7, wherein, the mounting point of connecting plate 11 should relative with suction tude 8 (namely described connecting plate 11 be located along the same line with described suction tude 8), disperse the waste gas entered by suction tude 8 to the impact force of second baffle 6 with this, reach the object comprising silencing apparatus internal structure.
Particularly, referring to figs. 2 and 3, can find out, the first baffle plate 5 is provided with the first through hole 51 and the second through hole 52, and wherein, described first through hole 51 is for connecting one end of described interpolation pipe 10, and described second through hole 52 is for connecting described suction tude 8; In addition, second baffle 6 is provided with third through-hole 61 and fourth hole 62, and wherein, described third through-hole 61 is for connecting the other end of described interpolation pipe 10, and described fourth hole 62 is for connecting described outlet pipe 9.Should be appreciated that third gear plate 7 should have identical structure with second baffle 6, therefore repeat no more here.
More specifically, above-mentioned reactive muffler operationally, its working principle is: waste gas enters from suction tude 8, then the first chamber 41 and the second chamber 42 is entered by the first punch block 81 on suction tude 8 and tube wall thereof, then waste gas enters the 3rd chamber 43 and the 4th chamber 44 by the second punch block 91 on interpolation pipe 10 and tube wall thereof from the first chamber 41 again, and last waste gas directly discharges the external world by the punch block on outlet pipe 9 and tube wall thereof in the 3rd chamber 43.A kind of enhancement mode reactive muffler for automobile of the utility model passes through waste gas from the second chamber 42 to the first chamber 41, again from the first chamber 41 to the 3rd chamber 43 and the 4th chamber 44, finally discharged after the 4th chamber 44 by the 3rd chamber 43 again, the roundtrip distance of waste gas is increased, relatively existing directly by gas being done in same chamber the rear scheme of discharging of expansion, the soundproof effect of the technical program is better.
Further, in order to provide the soundproof effect of above-mentioned a kind of enhancement mode reactive muffler for automobile, following advantageous embodiment can be done to above-mentioned technical characteristics.Such as:
The first, the length of inner chamber 4 is set to 525mm ± 5mm, and external diameter is about 180mm, and the thickness of shell 1 is about about 10mm, wherein, the first chamber 41 is 105mm ± 2mm, second chamber 42 is 200mm ± 3mm, and the 3rd chamber 43 is 120mm ± 2mm, and the 4th chamber 44 is 100mm ± 2mm.Because the second chamber 42 is communicated with the external world by suction tude 8, after waste gas enters, although its some enter the first chamber 41 by the first punch block 81, when most gas enters the second chamber 42, so arrange the longest by the length of the first chamber 41, so it can make the waste gas entering inner chamber 4 have enough buffer spaces.
Second, on the tube wall of the wherein half of outlet pipe 9, see Fig. 4, the schematic diagram of described second planar development of punch block 91 on half tube wall is shown, described second punch block 91 is laid on the grid zone of 11 × 11, comprise 8 row 8 row, altogether comprise 32 perforation, wherein, described 8 leus time are symmetrical arranged described perforation according to the one-tenth of 6,2,4,4,4,4,2,6, described 8 row successively according to 2,2,6,6,6,6,2,2 be symmetrical arranged described perforation.
3rd, on the tube wall of the wherein half in suction tude 8, see Fig. 5, the schematic diagram of described first planar development of punch block 81 on half tube wall is shown, described first punch block 81 is laid on the grid zone of 11 × 11, comprise 9 row 5 row, altogether comprise 23 perforation, wherein, described 9 leus time are symmetrical arranged described perforation according to the one-tenth of 3,2,3,2,3,2,3,2,3, described 5 row successively according to 5,4,5,4,5 be symmetrical arranged described perforation.
4th, on the tube wall of the wherein half on interpolation pipe 10, see Fig. 6, the schematic diagram of described 3rd planar development of punch block 101 on half tube wall is shown, described 3rd punch block 101 is laid on the grid zone of 11 × 11, comprise 11 row 3 row, altogether comprise 17 perforation, wherein, described 11 leus time are symmetrical arranged described perforation according to the one-tenth of 2,1,2,1,2,1,2,1,2,1,2, described 3 row successively according to 6,5,6 be symmetrical arranged described perforation.
Should be appreciated that in above first punch block 91, punch block 81, second and in the 3rd punch block 101, on it, set perforation is identical perforation, and the size of namely boring a hole is identical, and its diameter is about 5mm.In addition, on second half tube wall of suction tude 8, outlet pipe 9 and interpolation pipe 10, corresponding should be provided with the perforation laying structure identical with above-mentioned Fig. 4 to Fig. 6.
By the laying of above-mentioned punch block, the peak value of mid-frequency noise can be eliminated well, to weaken waste gas noise further, make a kind of enhancement mode reactive muffler for automobile of the utility model have better soundproof effect.
In sum, a kind of enhancement mode reactive muffler for automobile of the utility model arranges by chamber and dividing plate the discharge stroke increasing waste gas, simultaneously by rationally arranging inner chamber 4 and suction tude 8, outlet pipe 9 and interpolation pipe 10 size weaken mid-frequency noise further, simultaneously also by structure that Reasonable Arrangement is bored a hole, effectively regulate the expansion pressure of waste gas in individual chamber, make soundproof effect seem outstanding under limited cost control.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Claims (4)
1., for an enhancement mode reactive muffler for automobile, it is characterized in that, comprising:
The closed inner chamber be made up of shell and front cover and rear end cover, described inner chamber comprises the first chamber, the second chamber, the 3rd chamber and the 4th chamber that are separated successively by the first baffle plate, second baffle and third gear plate;
Suction tude; Described suction tude successively vertical tube runs through described front cover and the first baffle plate, the tube wall being positioned at the described suction tude of the first chamber offers the first punch block, and described second chamber is in communication with the outside;
Outlet pipe; Described outlet pipe vertically runs through described rear end cover and third gear plate and second baffle successively, the tube wall being positioned at the described outlet pipe of the 3rd chamber offers the second punch block, and the described outlet pipe one end being positioned at the second chamber is provided with the inner cap for sealing described outlet pipe, described 3rd chamber is in communication with the outside; And
Interpolation pipe, described interpolation pipe vertically runs through described first baffle plate, second baffle and third gear plate successively, and the tube wall being positioned at the described interpolation pipe of described 3rd chamber offers the 3rd punch block, described first chamber by described interpolation pipe and on the 3rd punch block interconnect with described 3rd chamber and the 4th chamber respectively
Connecting plate, two ends are connected to described second baffle and third gear plate, and described connecting plate and described suction tude are located along the same line.
2. the enhancement mode reactive muffler for automobile according to claim 1, it is characterized in that, described first baffle plate is provided with the first through hole and the second through hole, wherein, described first through hole is for connecting one end of described interpolation pipe, and described second through hole is for connecting described suction tude.
3. the enhancement mode reactive muffler for automobile according to claim 2, it is characterized in that, described second baffle is provided with third through-hole and fourth hole, wherein, described third through-hole is for connecting the other end of described interpolation pipe, and described fourth hole is for connecting described outlet pipe.
4. the enhancement mode reactive muffler for automobile according to claim 1, it is characterized in that, the length of described inner chamber is set to 525mm ± 5mm, external diameter is 180mm, and the thickness of shell is about 10mm, wherein, first chamber is 105mm ± 2mm, second chamber is 200mm ± 3mm, and the 3rd chamber is 120mm ± 2mm, and the 4th chamber is 100mm ± 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525787.9U CN204239016U (en) | 2014-09-15 | 2014-09-15 | A kind of enhancement mode reactive muffler for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525787.9U CN204239016U (en) | 2014-09-15 | 2014-09-15 | A kind of enhancement mode reactive muffler for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239016U true CN204239016U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420525787.9U Expired - Fee Related CN204239016U (en) | 2014-09-15 | 2014-09-15 | A kind of enhancement mode reactive muffler for automobile |
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| CN (1) | CN204239016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165698A (en) * | 2017-07-07 | 2017-09-15 | 爱驰威汽车零部件（盐城）有限公司 | A kind of automobile exhaust muffler |
-
2014
- 2014-09-15 CN CN201420525787.9U patent/CN204239016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165698A (en) * | 2017-07-07 | 2017-09-15 | 爱驰威汽车零部件（盐城）有限公司 | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20160915 |