CN105569775A - Exhaust muffler and vehicle with same - Google Patents
Exhaust muffler and vehicle with same Download PDFInfo
- Publication number
- CN105569775A CN105569775A CN201610128995.9A CN201610128995A CN105569775A CN 105569775 A CN105569775 A CN 105569775A CN 201610128995 A CN201610128995 A CN 201610128995A CN 105569775 A CN105569775 A CN 105569775A
- Authority
- CN
- China
- Prior art keywords
- hole
- exhaust pipe
- exhaust
- pipe
- noise elimination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
- F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses an exhaust muffler. The exhaust muffler comprises a muffler shell, a first partition plate, a first exhaust pipe and a second exhaust pipe, wherein the muffler shell is divided into a first muffling cavity and a second muffling cavity by the first partition plate; the first exhaust pipe is located in the first muffling cavity; the second exhaust pipe sleeves the first exhaust pipe, and capable of sliding along the axis direction of the first exhaust pipe; a section of sleeving area is formed between the first exhaust pipe and the second exhaust pipe; one end away from the sleeving area, of the second exhaust pipe, stretches into the second muffling cavity; the end part of one end located in the second muffling cavity, of the second exhaust pipe, is sealed, and connected with the exhaust muffler through an elastic element; second through holes and third through holes are arranged in pipe walls relative to the sleeving area, of the first exhaust pipe and the second exhaust pipe respectively; and fourth through holes are arranged in the pipe wall located in the second muffling cavity, of the second exhaust pipe. The exhaust muffler disclosed by the invention is capable of changing the superposed areas of the first through holes and the second through holes according to the quantity of air flow, and then automatically adjusting muffling frequency; and the exhaust muffler has a good muffling effect.
Description
Technical field
The present invention relates to technical field of vehicle, especially a kind of exhaust silencer and there is its vehicle.
Background technique
Automobile exhaust system is the important component part of automobile, vent systems also can take combustion noise to vehicle tail while combustion gas, this just makes vehicle tail create the very high order noise of sound pressure level and frictional noise, noise transfer is to passenger cabin, the spectrogram parameter of passenger cabin likely can be encouraged to cause passenger cabin's operatic tunes to resonate, have a strong impact on the NVH (Noise, Vibration, Harshness noise, vibration, sound vibration roughness) of car load.Along with growth in the living standard, people become comfortable household requisites to the requirement of car load from initial means of transportation, so Consumer is except requiring comparatively strictly the power character of vehicle, also more and more higher to the noise requirements of car load, car load all must possess comparatively quietly noise when traveling, acceleration, idling.
Silencing apparatus in current most of low and middle-end vehicle is that flow area amasss immutable silencing apparatus, and silencing apparatus noise elimination CF center frequency is fixed, along with engine speed raise time, noise frequency raise, silencing apparatus soundproof effect reduce, only has the silencing apparatus that the high-end car of small part uses frequency of noise elimination variable, Fig. 1 is the structural representation of frequency of noise elimination variable muffler in prior art, as shown in Figure 1, this silencing apparatus comprises muffler tail pipe 111, end cap 112 and torsion spring 113, end cap 112 is positioned at the outlet port of muffler tail pipe 111, and be connected with muffler tail pipe 111 by torsion spring 113, when the engine is not operating, in muffler tail pipe 111, airspeed is zero, now, end cap 112 gets lodged on muffler tail pipe 111 in the effect of torsion spring 113, when the engine operates, air-flow flows along muffler tail pipe 111, reopen the end cap 112 originally closed, along with the rotating speed of motor increases, air displacement increases, airspeed increases, the power that end cap 112 is subject to also can increase, end cap 112 is positioned at the aperture at muffler tail pipe 111 air outlet place also can be increasing, the sectional area of air-flow becomes large, thus the frequency of noise elimination of silencing apparatus also becomes large thereupon.
In prior art, the outlet pipe of the silencing apparatus that frequency of noise elimination is variable only has a hole, namely only has the area in a hole to change, and then regulates frequency of noise elimination, do not reach good soundproof effect.
Summary of the invention
The object of the present invention is to provide a kind of exhaust silencer and have its vehicle, this exhaust silencer has the adjustable exhaust port of multiple sectional area, automatically can regulate frequency of noise elimination, have good soundproof effect according to the situation of motor.
The invention provides a kind of exhaust silencer, comprise suppressor case, first dividing plate, downtake pipe and second exhaust pipe, described suppressor case is divided into the first noise elimination cavity and the second noise elimination cavity by described first dividing plate, described downtake pipe is positioned at described first noise elimination cavity, described second exhaust pipe is socketed on described downtake pipe, and can slide along the axial direction of described downtake pipe, one section of socket region overlapped is formed between described downtake pipe and described second exhaust pipe, described second exhaust pipe stretches in described second noise elimination cavity away from the one end in described socket region, described second exhaust pipe is positioned at the end part seal of one end of described second noise elimination cavity, and be connected with described exhaust silencer by elastic component, at described downtake pipe and described second exhaust pipe, the tube wall relative to described socket region place is respectively equipped with the second through hole and third through-hole, the tube wall being positioned at described second noise elimination cavity at described second exhaust pipe is provided with fourth hole.
Further, the outer wall of described second exhaust pipe is provided with the first baffle plate and second baffle, and described first baffle plate and described second baffle lay respectively at the both sides of described first dividing plate.
Further, described second through hole and described third through-hole are multiple, and lay along the axial direction of described downtake pipe and described second exhaust pipe respectively, and described second through hole is identical with the shape of described third through-hole.
Further, when described second exhaust pipe is in non-extended configuration, in described socket region, described second through hole and described third through-hole interval are arranged, described second through hole does not overlap completely with described third through-hole, when described second exhaust pipe is in full extension state, in described socket region, described second through hole overlaps completely with described third through-hole.
Further, described second through hole and described third through-hole are waist-shaped hole.
Further, the distance of two adjacent the second through holes is more than or equal to the length of described third through-hole, and the distance of two adjacent third through-holes is more than or equal to the length of described second through hole.
Further, described first baffle plate and be equipped with damping pad between described second baffle and described first dividing plate, is also provided with damping net between described second baffle and described first dividing plate.
Further, described downtake pipe is also provided with fifth hole away from the tube wall of the one end in described socket region.
Further, described gas-discharging silencer also comprises second partition, described suppressor case is divided into described first noise elimination cavity, described second noise elimination cavity and the 3rd noise elimination cavity by described first dividing plate and described second partition, described 3rd noise elimination cavity is provided with the first through hole, and described elastic component is arranged between the end of described second partition and described second exhaust pipe.
Present invention also offers a kind of vehicle, there is gas-discharging silencer provided by the invention.
In sum, the present invention is by the setting of the first dividing plate, downtake pipe, second exhaust pipe, the first through hole, the second through hole and elastic component, the overlapping area of the first through hole and the second through hole can be changed according to the size of air-flow, thus make this exhaust silencer have the adjustable exhaust port of multiple sectional area, automatically can regulate frequency of noise elimination according to the situation of motor, there is good soundproof effect.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of frequency of noise elimination variable muffler in prior art
The structural representation of the exhaust silencer that Fig. 2 provides for the embodiment of the present invention.
Fig. 3 is the plan view of exhaust silencer in Fig. 1.
Fig. 4 is the STRUCTURE DECOMPOSITION figure of exhaust silencer in Fig. 1.
Fig. 5 is the schematic cross-section that in Fig. 1, second exhaust pipe is in contraction state.
Fig. 6 is the schematic cross-section that in Fig. 1, second exhaust pipe is in extended configuration.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, it is as follows that the present invention is described in detail.
The invention provides a kind of exhaust silencer, the structural representation of the exhaust silencer that Fig. 2 provides for the embodiment of the present invention, Fig. 3 is the plan view of exhaust silencer in Fig. 1, Fig. 4 is the STRUCTURE DECOMPOSITION figure of exhaust silencer in Fig. 1, as shown in Figures 2 to 4, this exhaust silencer comprises suppressor case 10, first dividing plate 21, second partition 22, downtake pipe 31 and second exhaust pipe 32.
Suppressor case 10 is divided into the first noise elimination cavity 41, second noise elimination cavity 42 and the 3rd noise elimination cavity 43 by the first dividing plate 21 and second partition 22 successively, second partition 22 is provided with the first through hole 221, air-flow in second noise elimination cavity 42 can enter in the 3rd noise elimination cavity 43 by the first through hole 221, and the end that suppressor case 10 is positioned at the 3rd noise elimination cavity 43 side is provided with air outlet 11.
Downtake pipe 31 is fixed on the end that suppressor case 10 is positioned at the first noise elimination cavity 41 side, and be communicated between suppressor case 10 outside and the first noise elimination cavity 41, second exhaust pipe 32 is socketed on downtake pipe 31, and can slide along the axial direction of downtake pipe 31, one section of socket region overlapped (see downtake pipe in Fig. 4 and Fig. 5 and second exhaust pipe lap) is formed between downtake pipe 31 and second exhaust pipe 32, second exhaust pipe 32 stretches in the second noise elimination cavity 42 away from the one end in socket region, second exhaust pipe 32 be positioned at one end of the second noise elimination cavity 42 end part seal, and by elastic component 50, as spring, be connected with exhaust silencer.In the present embodiment, elastic component 50 is located between the end of second exhaust pipe 32 and second partition 22.Second exhaust pipe 32 under the effect of air-flow and elastic component 50, can do relative to downtake pipe 31 and stretches (namely to the direction motion that socket zone length reduces) or shrink (namely to the direction motion that socket zone length increases) motion.At downtake pipe 31 and second exhaust pipe 32, the tube wall relative to socket region place is respectively equipped with the second through hole 311 and third through-hole 321, the tube wall being positioned at the second noise elimination cavity 42 at second exhaust pipe 32 is provided with fourth hole 322, downtake pipe 31 is provided with fifth hole 312 away from the tube wall of the one end in socket region.
In the present embodiment, the second through hole 311 is multiple with third through-hole 321, and lays along the axial direction of downtake pipe 31 and second exhaust pipe 32 respectively, and the second through hole 311 is equal with the shape of third through-hole 321.
Particularly, the second through hole 311 can be all waist-shaped hole with third through-hole 321, and the distance of two adjacent the second through holes 311 is more than or equal to the length of third through-hole 321, and the distance of two adjacent third through-holes 321 is more than or equal to the length of the second through hole 311.When second exhaust pipe 32 is in non-extended configuration, in socket region, second through hole 311 and third through-hole 321 interval are arranged, second through hole 311 does not overlap completely with third through-hole 321, namely each second through hole 311 is located between two adjacent third through-holes 321, and each third through-hole 321 is located between two adjacent the second through holes 311.
The outer wall of second exhaust pipe 32 is also provided with the first baffle plate 323 and second baffle 324, first baffle plate 323 and second baffle 324 lay respectively at the both sides of the first dividing plate 21, second exhaust pipe 32 can be stoped to continue to stretch under the effect of air-flow and elastic component 50 when the first baffle plate 323 contacts with the first dividing plate 21, second exhaust pipe 32 can be stoped to continue to shrink under the effect of air-flow and elastic component 50 when second baffle 324 contacts with the first dividing plate 21, namely the first baffle plate 323 can make second exhaust pipe 32 move within the specific limits with second baffle 324.In the present embodiment, the movable distance of second exhaust pipe 32 should be not less than the length of the first through hole 221 and the second through hole 311, namely when second baffle 324 contacts with the first dividing plate 21, second exhaust pipe 32 is in complete contraction state, second through hole 311 does not overlap completely with third through-hole 321, when the first baffle plate 323 contacts with the first dividing plate 21, second exhaust pipe 32 is in full extension state, and the second through hole 311 overlaps completely with third through-hole 321.
Further, be equipped with damping pad 325 at the first baffle plate 323 and between second baffle 324 and the first dividing plate 21, between second baffle 324 and the first dividing plate 21, be also provided with damping net 326.
Fig. 5 is the schematic cross-section that in Fig. 1, second exhaust pipe is in contraction state, Fig. 6 is the schematic cross-section that in Fig. 1, second exhaust pipe is in extended configuration, as shown in Figures 5 and 6, when off-gas flows is without exhaust silencer provided by the invention, second exhaust pipe 32 is in contraction state, second baffle 324 is resisted against on the first dividing plate 21, when air-flow enters silencing apparatus from downtake pipe 31, part air-flow enters the first noise elimination cavity 41 from fifth hole 312, acoustic energy weakened through first time, another part air-flow enters second exhaust pipe 32, then discharge from the fourth hole 322 second exhaust pipe 32, acoustic energy weakens through second time.Due to the end seal of second exhaust pipe 32, under the effect of gas entering second exhaust pipe 32, second exhaust pipe 32 compression elastic piece 50, and start to do extending movement (namely moving upward in Fig. 4 and Fig. 5) to second partition 22 direction, the second through hole 311 originally do not overlapped is made to start to overlap with third through-hole 321, air-flow enters the first noise elimination cavity 41 by the second through hole 311 with the intersection of third through-hole 321, intersection and first noise elimination cavity 41 of the second through hole 311 and third through-hole 321 together form a resonant cavity, less and the constancy of volume of the first noise elimination cavity 41 of the area overlapped with third through-hole 321 due to now the second through hole 311, now silencing apparatus has good soundproof effect to low-frequency noise, along with engine speed increases, the also increase thereupon of air-flow and noise frequency, air-flow continues to promote second exhaust pipe 32 and moves to second partition 22 direction, second through hole 311 constantly increases with the overlapping area of third through-hole 321, when the first baffle plate 323 abuts on the first dividing plate 21, when second exhaust pipe 32 is in extended configuration, in socket region, second through hole 311 overlaps completely with third through-hole 321, because when air-flow increases, the second through hole 311 also constantly increases with the overlapping area of third through-hole 321, therefore, now can there is good soundproof effect to the noise of upper frequency.
Present invention also offers a kind of vehicle, there is above-mentioned exhaust silencer, about the further feature of this automobile, refer to prior art, do not repeat them here.
In sum, the present invention is by the setting of the first dividing plate, downtake pipe, second exhaust pipe, the first through hole, the second through hole and elastic component, the overlapping area of the first through hole and the second through hole can be changed according to the size of air-flow, thus make this exhaust silencer have the adjustable exhaust port of multiple sectional area, automatically can regulate frequency of noise elimination according to the situation of motor, there is good soundproof effect.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. an exhaust silencer, it is characterized in that: comprise suppressor case (10), first dividing plate (21), downtake pipe (31) and second exhaust pipe (32), described suppressor case (10) is divided into the first noise elimination cavity (41) and the second noise elimination cavity (42) by described first dividing plate (21), described downtake pipe (31) is positioned at described first noise elimination cavity (41), described second exhaust pipe (32) is socketed on described downtake pipe (31), and can slide along the axial direction of described downtake pipe (31), one section of socket region overlapped is formed between described downtake pipe (31) and described second exhaust pipe (32), described second exhaust pipe (32) stretches in described second noise elimination cavity (42) away from the one end in described socket region, described second exhaust pipe (32) is positioned at the end part seal of one end of described second noise elimination cavity (42), and be connected with described exhaust silencer by elastic component (50), at described downtake pipe (31) and described second exhaust pipe (32), the tube wall relative to described socket region place is respectively equipped with the second through hole (311) and third through-hole (321), the tube wall being positioned at described second noise elimination cavity (42) at described second exhaust pipe (32) is provided with fourth hole (322).
2. exhaust silencer according to claim 1, it is characterized in that: the outer wall of described second exhaust pipe (32) is provided with the first baffle plate (323) and second baffle (324), and described first baffle plate (323) and described second baffle (324) lay respectively at the both sides of described first dividing plate (21).
3. exhaust silencer according to claim 2, it is characterized in that: described second through hole (311) and described third through-hole (321) are multiple, and lay along the axial direction of described downtake pipe (31) and described second exhaust pipe (32) respectively, described second through hole (311) is identical with the shape of described third through-hole (321).
4. exhaust silencer according to claim 3, it is characterized in that: when described second exhaust pipe (32) is in non-extended configuration, in described socket region, described second through hole (311) and described third through-hole (321) interval are arranged, described second through hole (311) does not overlap completely with described third through-hole (321), when described second exhaust pipe (32) is in full extension state, in described socket region, described second through hole (311) overlaps completely with described third through-hole (321).
5. exhaust silencer according to claim 3, is characterized in that: described second through hole (311) and described third through-hole (321) are waist-shaped hole.
6. exhaust silencer according to claim 5, it is characterized in that: the distance of two adjacent the second through holes (311) is more than or equal to the length of described third through-hole (321), the distance of two adjacent third through-holes (321) is more than or equal to the length of described second through hole (311).
7. exhaust silencer according to claim 2, it is characterized in that: described first baffle plate (323) and be equipped with damping pad (325) between described second baffle (324) and described first dividing plate (21), between described second baffle (324) and described first dividing plate (21), be also provided with damping net (326).
8. exhaust silencer according to claim 1, is characterized in that: on described downtake pipe (31), be also provided with fifth hole (312) away from the tube wall of the one end in described socket region.
9. exhaust silencer according to claim 1, it is characterized in that: described gas-discharging silencer also comprises second partition (22), described suppressor case (10) is divided into described first noise elimination cavity (41), described second noise elimination cavity (42) and the 3rd noise elimination cavity (43) by described first dividing plate (21) and described second partition (22), described 3rd noise elimination cavity (43) is provided with the first through hole (221), and described elastic component (50) is arranged between the end of described second partition (22) and described second exhaust pipe (32).
10. a vehicle, is characterized in that: comprise exhaust silencer as in one of claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128995.9A CN105569775B (en) | 2016-03-07 | 2016-03-07 | Exhaust silencer and with its vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128995.9A CN105569775B (en) | 2016-03-07 | 2016-03-07 | Exhaust silencer and with its vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105569775A true CN105569775A (en) | 2016-05-11 |
| CN105569775B CN105569775B (en) | 2018-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610128995.9A Active CN105569775B (en) | 2016-03-07 | 2016-03-07 | Exhaust silencer and with its vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105569775B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499465A (en) * | 2016-11-11 | 2017-03-15 | 成都陵川特种工业有限责任公司 | It is based on aerodynamic noise reduction improved structure |
| CN107288786A (en) * | 2017-06-16 | 2017-10-24 | 上海斯瑞佛汽车零部件有限公司 | A kind of silencer of air inlet pipe and the application air inlet pipe |
| CN107731216A (en) * | 2017-11-15 | 2018-02-23 | 苏州岸肯电子科技有限公司 | A kind of drawing and pulling type silencer |
| CN109083726A (en) * | 2018-08-16 | 2018-12-25 | 厦门理工学院 | A kind of multi-mode automotive muffler |
| CN110686398A (en) * | 2019-09-25 | 2020-01-14 | 珠海格力电器股份有限公司 | Silencer with adjustable length and system pressure capable of being automatically adapted and air conditioner |
| CN115013624A (en) * | 2022-05-31 | 2022-09-06 | 中国船舶重工集团公司第七一九研究所 | Pressure reducing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190827340A (en) * | 1908-01-02 | 1909-06-03 | Pierre Ajasson De Grandsagne | Silencer for Explosion Engines. |
| JPS5776220A (en) * | 1980-10-29 | 1982-05-13 | Nippon Radiator Co Ltd | Muffler |
| US5477015A (en) * | 1991-05-03 | 1995-12-19 | Maremont Corporation | Vehicular muffler with improved mechanical lock joints |
| US6332510B1 (en) * | 1996-09-30 | 2001-12-25 | Silentor Holding A/S | Gas flow silencer |
| US6913112B2 (en) * | 2003-02-05 | 2005-07-05 | Arvin Technologies, Inc. | Noise attenuation assembly |
| CN203906048U (en) * | 2014-05-08 | 2014-10-29 | 北汽福田汽车股份有限公司 | Exhaust silencer for test vehicle |
| CN105156176A (en) * | 2014-06-04 | 2015-12-16 | 埃贝赫排气技术股份有限公司 | Muffler |
| CN204900194U (en) * | 2015-07-16 | 2015-12-23 | 上海齐耀螺杆机械有限公司 | Anti formula muffler of adjustable cavity length |
-
2016
- 2016-03-07 CN CN201610128995.9A patent/CN105569775B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190827340A (en) * | 1908-01-02 | 1909-06-03 | Pierre Ajasson De Grandsagne | Silencer for Explosion Engines. |
| JPS5776220A (en) * | 1980-10-29 | 1982-05-13 | Nippon Radiator Co Ltd | Muffler |
| US5477015A (en) * | 1991-05-03 | 1995-12-19 | Maremont Corporation | Vehicular muffler with improved mechanical lock joints |
| US6332510B1 (en) * | 1996-09-30 | 2001-12-25 | Silentor Holding A/S | Gas flow silencer |
| US6913112B2 (en) * | 2003-02-05 | 2005-07-05 | Arvin Technologies, Inc. | Noise attenuation assembly |
| CN203906048U (en) * | 2014-05-08 | 2014-10-29 | 北汽福田汽车股份有限公司 | Exhaust silencer for test vehicle |
| CN105156176A (en) * | 2014-06-04 | 2015-12-16 | 埃贝赫排气技术股份有限公司 | Muffler |
| CN204900194U (en) * | 2015-07-16 | 2015-12-23 | 上海齐耀螺杆机械有限公司 | Anti formula muffler of adjustable cavity length |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499465A (en) * | 2016-11-11 | 2017-03-15 | 成都陵川特种工业有限责任公司 | It is based on aerodynamic noise reduction improved structure |
| CN107288786A (en) * | 2017-06-16 | 2017-10-24 | 上海斯瑞佛汽车零部件有限公司 | A kind of silencer of air inlet pipe and the application air inlet pipe |
| CN107288786B (en) * | 2017-06-16 | 2019-05-21 | 上海斯瑞佛汽车零部件有限公司 | A kind of air inlet pipe and the silencer using the air inlet pipe |
| CN107731216A (en) * | 2017-11-15 | 2018-02-23 | 苏州岸肯电子科技有限公司 | A kind of drawing and pulling type silencer |
| CN109083726A (en) * | 2018-08-16 | 2018-12-25 | 厦门理工学院 | A kind of multi-mode automotive muffler |
| CN109083726B (en) * | 2018-08-16 | 2020-03-27 | 厦门理工学院 | Multi-mode automobile muffler |
| CN110686398A (en) * | 2019-09-25 | 2020-01-14 | 珠海格力电器股份有限公司 | Silencer with adjustable length and system pressure capable of being automatically adapted and air conditioner |
| CN115013624A (en) * | 2022-05-31 | 2022-09-06 | 中国船舶重工集团公司第七一九研究所 | Pressure reducing device |
| CN115013624B (en) * | 2022-05-31 | 2023-09-08 | 中国船舶重工集团公司第七一九研究所 | Pressure reducing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105569775B (en) | 2018-06-19 |
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