CN104047677B - Cylinder exhaust muffler pipe - Google Patents
Cylinder exhaust muffler pipe Download PDFInfo
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- CN104047677B CN104047677B CN201410263110.7A CN201410263110A CN104047677B CN 104047677 B CN104047677 B CN 104047677B CN 201410263110 A CN201410263110 A CN 201410263110A CN 104047677 B CN104047677 B CN 104047677B
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- magnetic piece
- slip magnetic
- arm
- anger
- house steward
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Abstract
The present invention provides a kind of cylinder exhaust muffler pipe, and including inlet manifold, it distributes two arms to lateral symmetry；These two arms head-on connect, and collaborate to be the house steward that gives vent to anger；Each arm arranges an air storage chamber in cincture at the house steward that gives vent to anger, and is connected by the through hole on branch pipe wall between air storage chamber with arm；One section of slip magnetic piece is respectively set in two arms, two sections of slip magnetic piece are at the same level relatively, and when two sections of slip magnetic piece mutually compress in the axial location of the house steward that gives vent to anger, slip magnetic piece side surface will give vent to anger house steward closure, and the air-flow in each arm can enter correspondence air storage chamber in；These two pieces of slip magnetic piece are mutually exclusive, and when recessing dorsad at the spacing ring to arm, slip magnetic piece makes the air-flow at arm rear isolate with corresponding air storage chamber.This acoustic filter can be by the continuous impulse air pressure in cylinder exhaust process close to eliminating, and the air-flow making acoustic filter tail end discharge is the gentleest, reduces exhaust noise to a great extent.
Description
Technical field
The present invention relates to silencing equipment field, especially, relate to a kind of acoustic filter carrying out for cylinder exhaust pipe and eliminating the noise.
Background technology
In the exhaust process of automobile engine, continuous print pulse pressure, this pulse gas high-speed punching exhaust mouth will be produced, its pressure and speed differ greatly with outside air, huge noise will be produced, therefore, be typically necessary on the exhaust pipe of engine installation deafener to reduce noise.
Current deafener mainly includes a silencing cavity closed, and is provided with one section of hush pipe being covered with through hole in this silencing cavity, and this hush pipe runs through described silencing cavity, and one termination exhaustor, the other end then leads to the external world；Further, quieter material is filled between described silencing cavity and hush pipe, to promote erasure effect.
In fact, owing to described hush pipe is the most through, therefore, on the path that hush pipe axis extends, exhaust resistance is minimum, therefore, air pulse in exhaust process, a bigger part still direct pulse outwardly environment, and only some is by the through hole on noise reduction tube wall, diffuse to, in silencing cavity, be absorbed by quieter material after interreflection.Further, practice also demonstrates that, current deafener, and during automobile acceleration etc., its actual erasure effect is unsatisfactory, needs to be continually improved.
In view of above-mentioned reason, Application No. 201210267691.2, the patent application of entitled opposite-flushing type muffler, it has been proposed that a kind of the aerofluxus symmetry of exhaustor be divided into two, then bypassing exhaust is allowed mutually to liquidate, to realize the scheme of pressure payment.But, this technical scheme is in process of the test, and technique effect is the most superior；After analysis, think, its reason is, although in cylinder acting exhaust process, compressed air all can produce a high pressure air mass each time, when two high pressure air mass fronts are bumped against, if high pressure air mass itself is little by compression degree, then these two high pressure air mass can be compressed each other easily, and is fused into a strong high pressure air mass；Therefore, the technical scheme of Application No. 201210267691.2, when electromotor full speed running, erasure effect is notable, and when electromotor low dynamics exports, effect will substantially weaken, and therefore, necessary makes improvements, to obtain more preferable soundproof effect.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of cylinder exhaust muffler pipe, this acoustic filter can be by the continuous impulse air pressure in cylinder exhaust process close to eliminating, and the air-flow making acoustic filter tail end discharge is the gentleest, reduces exhaust noise to a great extent.
The present invention solves the first technical scheme that its technical problem used: this cylinder exhaust muffler pipe includes inlet manifold, and this inlet manifold distributes two arms to lateral symmetry；Two described arms head-on connect, and interflow is the house steward that gives vent to anger after connecting；The axis of the described house steward that gives vent to anger and the orthogonal axe of described two arms；Each described arm near described in house steward place of giving vent to anger respectively around arranging an air storage chamber, between described air storage chamber and arm, the through hole realization by being opened on branch pipe wall connects；Described inlet manifold, arm, the house steward that gives vent to anger are constituted by non-ferromagnetic；Respectively setting one section of identical slip magnetic piece in described two arms, two sections of described slip magnetic piece are at the same level relatively；And the size of slip magnetic piece has a characteristic that when two sections of slip magnetic piece mutually compress in the axial location of the described house steward of giving vent to anger, the side surface of slip magnetic piece will give vent to anger house steward closure, and the air-flow in each described arm can enter correspondence air storage chamber in；These two pieces of slip magnetic piece are in its natural state, mutually exclusive, recess at the spacing ring to arm dorsad, and now, slip magnetic piece makes the air-flow at arm rear isolate with corresponding air storage chamber just.
As preferably, described inlet manifold, arm, the house steward that gives vent to anger are made up of austenitic stainless steel, have high intensity, corrosion-resistant a, high-temperature behavior, and not with magnet generation sucking action.
As preferably, the end face that two sections of described slip magnetic piece are facing each other has been sticked respectively one piece of elastic rubbery body high temperature resistant, corrosion resistant；Thus elasticity when improving two sections of slip magnetic piece collisions.
As preferably, described slip magnetic piece surface offers continuous print helicla flute, and this helicla flute makes the air at slip magnetic piece two ends can realize connection；The advantage of this architectural feature is: when the air-flow at slip magnetic piece rear promotes slip magnetic piece to slide, sub-fraction air-flow enters helicla flute flowing, thus slip magnetic piece is applied a rotation torque, make slip magnetic piece can rotate in arm, to promote the sliding axially of slip magnetic piece, be conducive to overcoming the dirty resistance in arm.
The beneficial effects of the present invention is: this cylinder exhaust muffler pipe is in the course of the work, the every stroke of cylinder does work once, produce a pulse pressure, just it is divided into two parts by two described arm symmetries, promote one section of described slip magnetic piece respectively, until two sections of slip magnetic piece head-on collisions, the kinetic energy of pulse pressure is completely converted into the interior energy of slip magnetic piece；And the pulse pressure that is obstructed enters in described air storage chamber, becoming mitigation air-flow, after two sections of slip magnetic piece retreat under repulsion effect and playback, the air-flow in air storage chamber is able to inflow and gives vent to anger house steward, and slowly discharges；For this acoustic filter, regardless of engine running condition, tail gas to be discharged, two described slip magnetic piece must be first made mutually to collide, to unload the kinetic energy of pulse pressure, therefore, the air-flow necessarily making acoustic filter tail end discharge is the gentleest, possesses superior soundproof effect.
Accompanying drawing explanation
Fig. 1 is an embodiment schematic diagram of this cylinder exhaust muffler pipe.
Fig. 2 is in Fig. 1 embodiment, arm tube wall schematic diagram at air storage chamber.
Fig. 3 is the work process schematic diagram of Fig. 1 embodiment.
Fig. 4 is in this cylinder exhaust muffler pipe, an embodiment schematic diagram of slip magnetic piece.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
In the embodiment shown in Fig. 1, Fig. 2, this cylinder exhaust muffler pipe includes inlet manifold 1, and this inlet manifold 1 distributes two arms 21,22 to lateral symmetry；Described two arms 21,22 head-on connect, and interflow is the house steward 3 that gives vent to anger after connecting；The axis of the described house steward 3 that gives vent to anger and the orthogonal axe of described two arms；Each described arm 21,22 near described in give vent to anger respectively around arranging an air storage chamber 211,221 at house steward 3, between described air storage chamber and arm, the through hole by being opened on branch pipe wall 2110,2210 realizes connecting；It should be noted that, in Fig. 1, for prominent just branch pipe wall to air storage chamber 211,221, this section tubular wall 2110,2210 is drawn thin compared with remainder, actually in manufacturing process, in order to conventionally, and each several part tube wall uniform thickness of arm 21,22.Wherein, the expansion schematic diagram of the arm 21,22 tube wall 2110 at air storage chamber 211 is as shown in Figure 2.
Described inlet manifold 1, arm 21,22, the house steward 3 that gives vent to anger constituted by non-ferromagnetic, e.g., austenitic stainless steel, to avoid and magnet generation sucking action, and, there is high intensity, corrosion-resistant, resistance to elevated temperatures；Respectively setting one section of identical slip magnetic piece 41,42 in described two arms 21,22, two sections of described slip magnetic piece are at the same level relatively；And the size of slip magnetic piece has a characteristic that when two sections of slip magnetic piece 41,42 mutually compress in the axial location of the described house steward of giving vent to anger 3, the house steward 3 that will give vent to anger blocks the side surface of slip magnetic piece 41,42, and the air-flow in each described arm 21,22 can enter in the air storage chamber 211,221 of correspondence；These two pieces of slip magnetic piece are in its natural state, mutually exclusive, and at the spacing ring 212,222 recessed dorsad to arm, now, slip magnetic piece 41,42 makes the air-flow at arm rear isolate with corresponding air storage chamber just.
Above-mentioned cylinder exhaust muffler pipe, two sections of described slip magnetic piece 41,42 end faces facing each other can be sticked respectively one piece of elastic rubbery body high temperature resistant, corrosion resistant；Thus elasticity when improving the collision of two sections of slip magnetic piece, not only protect slip magnetic piece, suppress fragmentation, and the quick resilience of beneficially slip magnetic piece.
Above-mentioned cylinder exhaust muffler pipe, for described slip magnetic piece 41,42, one preferred embodiment is, at slip magnetic piece, such as, slip magnetic piece 41 surface shown in Fig. 4, offering continuous print helicla flute 410, this helicla flute 410 makes the air at slip magnetic piece two ends can realize connection；The advantage of this architectural feature is: when the air-flow at slip magnetic piece 41 rear promotes slip magnetic piece to slide, sub-fraction air-flow enters helicla flute 410 and flows, thus slip magnetic piece is applied a rotation torque, make slip magnetic piece can rotate in arm, i.e., make rotation limit, slip magnetic piece limit slide, to promote sliding axially of slip magnetic piece, be conducive to overcoming the dirty resistance in arm.
The work process of above-mentioned cylinder exhaust muffler pipe is as shown in Figure 3, the every stroke of cylinder does work once, produce a pulse pressure, just it is divided into two parts by two described arm 21,22 symmetries, push one section of described slip magnetic piece 41,42 respectively to, now, two sections of slip magnetic piece 41,42 are in the position shown in the image of the leftmost side in Fig. 3；After pulse pressure acts on slip magnetic piece, the head-on collision of two sections of slip magnetic piece 41,42, it is in Fig. 3 the middle position shown in image；By the head-on collision of slip magnetic piece 41,42, the kinetic energy of pulse pressure is completely converted into the interior energy of slip magnetic piece；And the arrow in the image in the middle of in the pulse pressure being obstructed such as Fig. 3 is illustrated, enter in described air storage chamber 211,221, become mitigation air-flow；Then, two sections of slip magnetic piece 41,42 retreat playback under repulsion effect, are in the position shown in the image of the rightmost side in Fig. 3, and the air-flow in air storage chamber 211,221 is able to curve arrow such as and is illustrated, flow into the house steward 3 that gives vent to anger, and slowly discharge；For this acoustic filter, regardless of engine running condition, tail gas to be discharged, two described slip magnetic piece 41,42 must be first made mutually to collide, to unload the kinetic energy of pulse pressure, therefore, the air-flow necessarily making acoustic filter tail end discharge is the gentleest, possesses superior soundproof effect.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (4)
1. a cylinder exhaust muffler pipe, including inlet manifold (1), this inlet manifold distributes two arms (21,22) to lateral symmetry；Two described arms head-on connect, and interflow is a house steward that gives vent to anger (3) after connecting；The axis of the described house steward that gives vent to anger (3) and the orthogonal axe of described two arms (21,22)；It is characterized in that: each described arm near described in house steward place of giving vent to anger respectively around arranging an air storage chamber (211,221), between described air storage chamber (211,221) with arm (21,22), the through hole realization by being opened on branch pipe wall connects；Described inlet manifold (1), arm (21,22), the house steward that gives vent to anger (3) are constituted by non-ferromagnetic；Respectively setting one section of identical slip magnetic piece (41,42) in described two arms, two sections of described slip magnetic piece are at the same level relatively；And the size of slip magnetic piece has a characteristic that when two sections of slip magnetic piece (41,42) mutually compress in the axial location of the described house steward of giving vent to anger (3), the side surface of slip magnetic piece will give vent to anger house steward (3) closure, and the air-flow in each described arm can enter correspondence air storage chamber (211,221) in；These two pieces of slip magnetic piece are in its natural state, mutually exclusive, recess spacing ring (212, the 222) place to arm (21,22) dorsad, and now, slip magnetic piece (41,42) makes the air-flow at arm rear isolate with corresponding air storage chamber (211,221) just.
Cylinder exhaust muffler pipe the most according to claim 1, it is characterised in that: described inlet manifold (1), arm (21,22), the house steward that gives vent to anger (3) are made up of austenitic stainless steel.
Cylinder exhaust muffler pipe the most according to claim 1, it is characterised in that: be sticked on the end face that two sections of described slip magnetic piece (41,42) are facing each other piece of elastic rubbery body high temperature resistant, corrosion resistant respectively.
4. according to the cylinder exhaust muffler pipe described in claim 1 or 3, it is characterised in that: described slip magnetic piece (41,42) surface offers continuous print helicla flute, and this helicla flute makes the air at slip magnetic piece two ends can realize connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263110.7A CN104047677B (en) | 2014-06-14 | 2014-06-14 | Cylinder exhaust muffler pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263110.7A CN104047677B (en) | 2014-06-14 | 2014-06-14 | Cylinder exhaust muffler pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104047677A CN104047677A (en) | 2014-09-17 |
| CN104047677B true CN104047677B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410263110.7A Active CN104047677B (en) | 2014-06-14 | 2014-06-14 | Cylinder exhaust muffler pipe |
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| CN (1) | CN104047677B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10251117A1 (en) * | 2002-11-02 | 2004-05-19 | Deutsche Montan Technologie Gmbh | Device to generate frequency spectrum in pipe in reciprocating piston engine has modified throttle plate with profiling and perforations to improve acoustic characteristics |
| CN102777234A (en) * | 2012-07-30 | 2012-11-14 | 苏州市伦琴工业设计有限公司 | Hedging type exhaust silencer |
| CN204003008U (en) * | 2014-06-14 | 2014-12-10 | 马根昌 | Cylinder exhaust muffler pipe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120425A (en) * | 1998-10-19 | 2000-04-25 | Futaba Industrial Co Ltd | Valve element structure of exhaust system |
| EP1808594A1 (en) * | 2006-01-13 | 2007-07-18 | Denso Corporation | Intake muffler |
| KR101610080B1 (en) * | 2010-12-01 | 2016-04-07 | 현대자동차 주식회사 | Variable flow passage valve for muffler |
-
2014
- 2014-06-14 CN CN201410263110.7A patent/CN104047677B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10251117A1 (en) * | 2002-11-02 | 2004-05-19 | Deutsche Montan Technologie Gmbh | Device to generate frequency spectrum in pipe in reciprocating piston engine has modified throttle plate with profiling and perforations to improve acoustic characteristics |
| CN102777234A (en) * | 2012-07-30 | 2012-11-14 | 苏州市伦琴工业设计有限公司 | Hedging type exhaust silencer |
| CN204003008U (en) * | 2014-06-14 | 2014-12-10 | 马根昌 | Cylinder exhaust muffler pipe |
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| Publication number | Publication date |
|---|---|
| CN104047677A (en) | 2014-09-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Chun Inventor before: Ma Genchang |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160823 Address after: 226600 Haian City, Jiangsu Province Town Industrial Park Applicant after: Jiangsu TianPeng Electromechanical Co., Ltd. Address before: 210000 Nanjing, Jiangsu Province, Yuhuatai District, software Avenue, No. 186 Applicant before: Ma Genchang |