CN106014577A - Internal combustion engine silencer used for pickup truck - Google Patents
Internal combustion engine silencer used for pickup truck Download PDFInfo
- Publication number
- CN106014577A CN106014577A CN201610580680.8A CN201610580680A CN106014577A CN 106014577 A CN106014577 A CN 106014577A CN 201610580680 A CN201610580680 A CN 201610580680A CN 106014577 A CN106014577 A CN 106014577A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- inner tube
- chamber
- reduction cylinder
- steel pipe
- 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.)
- Pending
Links
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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/02—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate silencers in series
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- 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
-
- 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
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
-
- 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
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- 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
- F01N2210/00—Combination of methods of silencing
- F01N2210/04—Throttling-expansion and resonance
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
Landscapes
- 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 internal combustion engine silencer used for a pickup truck. The internal combustion engine silencer comprises a pre-level noise reduction cylinder and a post-level noise reduction cylinder. An air inlet steel pipe and an air outlet steel pipe are arranged at the left end and the right end of the pre-level noise reduction cylinder correspondingly. Two partition plates are arranged in the pre-level noise reduction cylinder and divide an inner cavity of the pre-level noise reduction cylinder into a first cavity, a second cavity and a third cavity from left to right. An air outlet tail pipe is arranged at the right end of the post-level noise reduction cylinder, and a first partition plate, a second partition plate, a third partition plate and a fourth partition plate are arranged in the post-level noise reduction cylinder from left to right and divide an inner cavity of the post-level noise reduction cylinder into a third expansion room, a second resonance room, a first expansion room, a first resonance room and a second expansion room from left to right. The internal combustion engine silencer is specially used for the gasoline internal combustion engine pickup truck, a good noise reduction effect is achieved in small vehicle bottom space, a double-level silencer structure is adopted, noise reduction can be conducted for different frequency bands, in addition, the internal combustion engine silencer is firm, durable, not likely to be damaged and suitable for severe bottom working environments of pickup trucks.
Description
Technical field
The present invention relates to picking-up vehicle internal combustion engine noise reduction technical field, particularly relate to a kind of picking-up vehicle muffler for i. c. e.
Background technology
Along with country's raising day by day to the automobile noise control, people's lifting day by day to quality of the life, automobile is also more and more higher to the requirement of exhaust noise.And using suitable deafener is to reduce the effective means that car combustion engine burning causes.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of picking-up vehicle muffler for i. c. e.
The present invention is achieved by the following technical solutions:
A kind of picking-up vehicle muffler for i. c. e, include prime noise reduction cylinder and rear class noise reduction cylinder, left and right end at prime noise reduction cylinder is respectively equipped with air inlet steel pipe and steel pipe of giving vent to anger, it is provided with two dividing plates in the inside of prime noise reduction cylinder, prime hush pipe intracoelomic cavity is from left to right divided into chamber one by two dividing plates, chamber two and chamber three, resistive sound absorption material it is equipped with inside chamber one and chamber three, left porous inner tube and right porous inner tube it is respectively equipped with in chamber one and chamber three, it is equipped with multiple aperture on left porous inner tube and right porous inner tube, the right-hand member of left porous inner tube and the left end of right porous inner tube all extend in chamber two, the air inlet steel pipe described in left end connection of left porous inner tube, the steel pipe of giving vent to anger described in right-hand member connection of right porous inner tube；nullRight-hand member at described rear class noise reduction cylinder is provided with outlet tail piece，Inside is from left to right provided with dividing plate one、Dividing plate two、Dividing plate three and dividing plate four，The inner chamber of rear class noise reduction cylinder is from left to right divided into expansion chambers three by four dividing plates、Resonant chamber two、Expansion chambers one、Resonant chamber one and expansion chambers two，Air inlet pipe is arranged below in expansion chambers one，Air inlet pipe connects air inlet sleeve pipe，The other end of air inlet sleeve pipe connects the steel pipe of giving vent to anger on prime noise reduction cylinder，Inner tube with holes is further respectively had in rear class noise reduction inner barrel、Porous inner tube one and porous inner tube two，Inner tube with holes and porous inner tube one sequentially pass through four dividing plates，And two ends, left and right lay respectively in expansion chambers three and expansion chambers two，The outlet tail piece described in right-hand member connection of inner tube with holes，Inner tube with holes be positioned at resonant chamber two one section is provided with multiple aperture，Porous inner tube one is positioned on two sections of resonant chamber two and resonant chamber one and is equipped with multiple aperture，Described porous inner tube two is through dividing plate three and dividing plate four，Two ends, left and right lay respectively in expansion chambers one and expansion chambers two.
Described air inlet steel pipe and a diameter of 64mm of steel pipe of giving vent to anger, and without the bending of zig zag, while reducing engine exhaust gas flowing speed, it also avoid the exhaust resistance because pipeline section is too small and racing bend causes big, affect the situation of engine output.
Described rear class noise reduction cylinder is flat structure.The space less for adapting to vehicle bottom, increases the road clearance, ensures there is sufficiently large volume simultaneously, and the rear class deafener barrel designs that volume is bigger becomes flat structure.
In the end of air inlet steel pipe, inlet flange is installed.
Left and right end at air inlet steel pipe, give vent to anger steel pipe and rear class noise reduction cylinder is respectively equipped with installation suspension hook.
Described resistive sound absorption material is glass mat.
The invention have the advantage that the present invention is exclusively used in a gasoline engine picking-up vehicle, the good effect reducing noise is realized in less vehicle bottom space, have employed twin-stage noise eliminating device structure, can be for different frequency range noise reduction respectively, the most sturdy and durable, it is hardly damaged, is suitable for the bottom working environment that picking-up vehicle is severe.
Accompanying drawing explanation
Fig. 1 is prime hush pipe external body structure chart of the present invention.
Fig. 2 is rear class hush pipe external body structure chart of the present invention.
Fig. 3 is prime noise reduction inner barrel structure chart of the present invention.
Fig. 4 is rear class noise reduction inner barrel structure chart of the present invention.
Detailed description of the invention
nullSuch as Fig. 1、2、3、Shown in 4，A kind of picking-up vehicle muffler for i. c. e，Include prime noise reduction cylinder 1 and rear class noise reduction cylinder 2，Left and right end at prime noise reduction cylinder 1 is respectively equipped with air inlet steel pipe 3 and steel pipe 4 of giving vent to anger，It is provided with two dividing plates 5 in the inside of prime noise reduction cylinder 1，Prime noise reduction cylinder 1 inner chamber is from left to right divided into chamber 1 by two dividing plates 5、Chamber 27 and chamber 38，Resistive sound absorption material 9 it is equipped with inside chamber 1 and chamber 38，Left porous inner tube 10 and right porous inner tube 11 it is respectively equipped with in chamber 1 and chamber 38，It is equipped with multiple aperture on left porous inner tube 10 and right porous inner tube 11，The right-hand member of left porous inner tube 10 and the left end of right porous inner tube 11 all extend in chamber 27，The air inlet steel pipe 3 described in left end connection of left porous inner tube 10，The steel pipe 4 of giving vent to anger described in right-hand member connection of right porous inner tube 11；nullRight-hand member at described rear class noise reduction cylinder 2 is provided with outlet tail piece 12，Inside is from left to right provided with dividing plate 1、Dividing plate 2 14、Dividing plate 3 15 and dividing plate 4 16，The inner chamber of rear class noise reduction cylinder 2 is from left to right divided into expansion chambers 3 17 by four dividing plates、Resonant chamber 2 18、Expansion chambers 1、Resonant chamber 1 and expansion chambers 2 21，Air inlet pipe 22 is arranged below in expansion chambers 1，Air inlet pipe 22 connects air inlet sleeve pipe 23，The other end of air inlet sleeve pipe 23 connects the steel pipe 4 of giving vent to anger on prime noise reduction cylinder 1，Inner tube 24 with holes is further respectively had inside rear class noise reduction cylinder 2、Porous inner tube 1 and porous inner tube 2 26，Inner tube 24 with holes and porous inner tube 1 sequentially pass through four dividing plates，And two ends, left and right lay respectively in expansion chambers 3 17 and expansion chambers 2 21，The outlet tail piece 12 described in right-hand member connection of inner tube 24 with holes，Inner tube 24 with holes be positioned at resonant chamber 2 18 one section is provided with multiple aperture，Porous inner tube 1 is positioned on two sections of resonant chamber 2 18 and resonant chamber 1 and is equipped with multiple aperture，Described porous inner tube 2 26 is through dividing plate 3 15 and dividing plate 4 16，Two ends, left and right lay respectively in expansion chambers 1 and expansion chambers 2 21.
Described air inlet steel pipe 3 and a diameter of 64mm of steel pipe 4 of giving vent to anger, and without the bending of zig zag, while reducing engine exhaust gas flowing speed, it also avoid the exhaust resistance because pipeline section is too small and racing bend causes big, affect the situation of engine output.
Described rear class noise reduction cylinder 2 is flat structure.The space less for adapting to vehicle bottom, increases the road clearance, ensures there is sufficiently large volume simultaneously, and the rear class deafener barrel designs that volume is bigger becomes flat structure.
In the end of air inlet steel pipe 3, inlet flange 27 is installed.
Left and right end at air inlet steel pipe 3, give vent to anger steel pipe 4 and rear class noise reduction cylinder 2 is respectively equipped with installation suspension hook 28.
Described resistive sound absorption material 9 is glass mat.
Prime noise reduction process:
Engine exhaust gas enters prime muffler cavity 1 by left porous inner tube 10, then being dilated suddenly a bigger chamber by original pipeline, the acoustic impedance in passage can be undergone mutation, and makes the sound wave of some frequency can't pass acoustic filter, and be reflected back sound source, thus effectively reduce low-frequency noise；
And owing to a large amount of aperture being distributed on left porous inner tube 10, understand some air-flow and enter chamber by aperture, produce vibrations, and when airstream vibration, by aperture, make the gas in closing chamber also cause vibration, gas (gas column) in aperture vibrates the most simultaneously, and when the frequency of vibration in air-flow is identical with the natural frequency closing chamber, resonates, thus reduce noise；
Simultaneously because chamber is filled with substantial amounts of glass fibre, the acoustic energy of sound wave can be converted into frictional heat energy because of friction, thus reduces medium, high frequency noise during air-flow enters glass fibre by aperture.
Then, air-flow flows out prime muffler chamber by right porous inner tube below, meanwhile, then produces vibrations friction by the aperture in inner tube and the glass fibre in chamber, reduces noise.
Rear class noise reduction process:
Combustion in IC engine waste gas, by after prime deafener cylinder 1, continues flowing along pipeline, is entered the expansion chambers 1 of rear class deafener cylinder 2 by recent inner tube.
During again, pipeline originally dilates suddenly a bigger chamber, and the acoustic impedance in passage can be undergone mutation, and makes the sound wave of some frequency can't pass acoustic filter, and is reflected back sound source, thus effectively reduces low-frequency noise；
Then, air-flow enters expansion chambers 2 21 from expansion chambers 1 by porous inner tube 2 26, again expands, reduces a part of low-frequency noise；In the process, owing to having many apertures on porous inner tube 2 26, understand some air-flow and enter chamber by aperture, produce vibrations, and when airstream vibration, pass through aperture, making the gas in closing chamber also cause vibration, the gas (gas column) in aperture vibrates the most simultaneously, and when the frequency of vibration in air-flow is identical with the natural frequency closing chamber, resonate, thus reduce noise；
Followed by, air-flow by porous inner tube 1 from expansion chambers 2 21, enters expansion chambers 3 17, again expands, reduce a part of low-frequency noise；In the process, owing to also having many apertures on porous inner tube 1, understand some air-flow and enter resonant chamber 1 and resonant chamber 2 18 by aperture, again occur resonance to reduce a part of noise.
Finally, engine exhaust gas is discharged by outlet tail piece.
Sum up: through repeatedly the dilating of the double deafener of front stage, resonate, the effect such as friction, significantly reduce basic, normal, high each frequency noise of this picking-up vehicle gasoline engine；And muffler desing is flat structure, it is ensured that also improve the road clearance of car load while volume.
Claims (6)
1. a picking-up vehicle muffler for i. c. e, it is characterized in that: include prime noise reduction cylinder and rear class noise reduction cylinder, left and right end at prime noise reduction cylinder is respectively equipped with air inlet steel pipe and steel pipe of giving vent to anger, it is provided with two dividing plates in the inside of prime noise reduction cylinder, prime hush pipe intracoelomic cavity is from left to right divided into chamber one by two dividing plates, chamber two and chamber three, resistive sound absorption material it is equipped with inside chamber one and chamber three, left porous inner tube and right porous inner tube it is respectively equipped with in chamber one and chamber three, it is equipped with multiple aperture on left porous inner tube and right porous inner tube, the right-hand member of left porous inner tube and the left end of right porous inner tube all extend in chamber two, the air inlet steel pipe described in left end connection of left porous inner tube, the steel pipe of giving vent to anger described in right-hand member connection of right porous inner tube；nullRight-hand member at described rear class noise reduction cylinder is provided with outlet tail piece，Inside is from left to right provided with dividing plate one、Dividing plate two、Dividing plate three and dividing plate four，The inner chamber of rear class noise reduction cylinder is from left to right divided into expansion chambers three by four dividing plates、Resonant chamber two、Expansion chambers one、Resonant chamber one and expansion chambers two，Air inlet pipe is arranged below in expansion chambers one，Air inlet pipe connects air inlet sleeve pipe，The other end of air inlet sleeve pipe connects the steel pipe of giving vent to anger on prime noise reduction cylinder，Inner tube with holes is further respectively had in rear class noise reduction inner barrel、Porous inner tube one and porous inner tube two，Inner tube with holes and porous inner tube one sequentially pass through four dividing plates，And two ends, left and right lay respectively in expansion chambers three and expansion chambers two，The outlet tail piece described in right-hand member connection of inner tube with holes，Inner tube with holes be positioned at resonant chamber two one section is provided with multiple aperture，Porous inner tube one is positioned on two sections of resonant chamber two and resonant chamber one and is equipped with multiple aperture，Described porous inner tube two is through dividing plate three and dividing plate four，Two ends, left and right lay respectively in expansion chambers one and expansion chambers two.
A kind of picking-up vehicle muffler for i. c. e the most according to claim 1, it is characterised in that: described air inlet steel pipe and a diameter of 64mm of steel pipe of giving vent to anger, and without the bending of zig zag.
A kind of picking-up vehicle muffler for i. c. e the most according to claim 1, it is characterised in that: in the end of air inlet steel pipe, inlet flange is installed.
A kind of picking-up vehicle muffler for i. c. e the most according to claim 1, it is characterised in that: the left and right end at air inlet steel pipe, give vent to anger steel pipe and rear class noise reduction cylinder is respectively equipped with installation suspension hook.
A kind of picking-up vehicle muffler for i. c. e the most according to claim 1, it is characterised in that: described rear class noise reduction cylinder is flat structure.
A kind of picking-up vehicle muffler for i. c. e the most according to claim 1, it is characterised in that: described resistive sound absorption material is glass mat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580680.8A CN106014577A (en) | 2016-07-22 | 2016-07-22 | Internal combustion engine silencer used for pickup truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580680.8A CN106014577A (en) | 2016-07-22 | 2016-07-22 | Internal combustion engine silencer used for pickup truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014577A true CN106014577A (en) | 2016-10-12 |
Family
ID=57116268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610580680.8A Pending CN106014577A (en) | 2016-07-22 | 2016-07-22 | Internal combustion engine silencer used for pickup truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014577A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004324622A (en) * | 2003-04-30 | 2004-11-18 | Honda Motor Co Ltd | Exhaust pipe device of vehicle |
| CN204716365U (en) * | 2015-04-09 | 2015-10-21 | 北京市通州迪拉汽车附件有限公司 | A kind of silencing apparatus for double-exhaust structure |
| CN205805670U (en) * | 2016-07-22 | 2016-12-14 | 合肥汇凌汽车零部件有限公司 | A kind of picking-up vehicle muffler for i. c. e |
-
2016
- 2016-07-22 CN CN201610580680.8A patent/CN106014577A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004324622A (en) * | 2003-04-30 | 2004-11-18 | Honda Motor Co Ltd | Exhaust pipe device of vehicle |
| CN204716365U (en) * | 2015-04-09 | 2015-10-21 | 北京市通州迪拉汽车附件有限公司 | A kind of silencing apparatus for double-exhaust structure |
| CN205805670U (en) * | 2016-07-22 | 2016-12-14 | 合肥汇凌汽车零部件有限公司 | A kind of picking-up vehicle muffler for i. c. e |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |