CN101793181A - Low backpressure muffler - Google Patents
Low backpressure muffler Download PDFInfo
- Publication number
- CN101793181A CN101793181A CN201010140200A CN201010140200A CN101793181A CN 101793181 A CN101793181 A CN 101793181A CN 201010140200 A CN201010140200 A CN 201010140200A CN 201010140200 A CN201010140200 A CN 201010140200A CN 101793181 A CN101793181 A CN 101793181A
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- China
- Prior art keywords
- rear end
- pipe
- dish
- separation disc
- cylindrical shell
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- 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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- Exhaust Silencers (AREA)
Abstract
The invention discloses a low backpressure muffler comprising a front end cover, a cylinder body, a first separation disc, a second separation disc, an air inlet pipe, inner pipes, an air outlet pipe and a rear end cover. A front end opening of the air inlet pipe is positioned in the front end cover; the rear end of the air inlet pipe passes through the first separation disc and the second separation disc; a rear end opening of the air inlet pipe is positioned in the rear cover; two ends of the cylinder body are in airtight connection with the front end cover and the rear end cover; the first separation disc and the second separation disc are arranged in the cylinder body along the axial direction vertical to the cylinder body; the first separation disc and the second separation disc are in airtight connection with the cylinder body; the air inlet pipe, the inner pipes and the air outlet pipe are arranged in the cylinder body along the axial direction of the cylinder body; a front end opening of one inner pipe is positioned in the first separation disc and a rear end opening of the inner pipe is positioned in the second separation disc; a front end opening of another inner pipe is positioned in the second separation disc and a rear end opening of the another inner pipe is positioned in the rear end cover; and the pipe walls of the air inlet pipe and the inner pipes are provided with a plurality of muffling holes. The invention has the advantages of having simple structure, greatly reducing the exhaust resistance of a finished vehicle and exhaust backpressure, further improving the power of an engine and reducing oil consumption.
Description
Technical field
The present invention relates to a kind of vent systems of automobile, specifically belong to a kind of low back pressure automobile exhaust muffler.
Background technique
During the motor car engine combustion gas, the pressure of waste gas changes rapidly at the exhaust pipe mouth place, produces vibration, and vibration produces noise.In the prior art, install silencing apparatus in the outlet pipe of motor car engine, silencing apparatus is used to consume flowed energy, reduces the pressure surge amplitude of air-flow, can play the effect that reduces noise.But in the silencing apparatus of existing motor car engine, it is big that air communication is crossed resistance, the exhaust back pressure height, and the engine power loss that causes is big, oil consumption increases, and the power performance of automobile is descended.
Summary of the invention
The present invention seeks to: a kind of low backpressure muffler is provided, and the resistance that makes air-flow be subjected in the process by silencing apparatus reduces, and exhaust back pressure reduces, thereby reduces the power loss of motor, reduces the oil consumption of motor.
Technological scheme of the present invention is: a kind of low backpressure muffler, comprise a front cover, cylindrical shell, first every dish, second every dish, suction tude, interior pipe, steam outlet pipe and a rear end cover, the front opening of described suction tude is in front cover, the rear end of suction tude passes first every dish with second every dish, and the open rearward end of suction tude is in rear end cover.
The further technological scheme of the present invention is: a kind of low backpressure muffler, comprise a front cover, cylindrical shell, first every dish, second every dish, suction tude, interior pipe, steam outlet pipe and a rear end cover, the front opening of described suction tude is in front cover, the rear end of suction tude passes first every dish with second every dish, and the open rearward end of suction tude is in rear end cover; Being provided with tightness between the two ends of described cylindrical shell and described front cover and the rear end cover is connected, described first is arranged in the cylindrical shell perpendicular to the cylindrical shell axial direction every the rim every dish and second, first is provided with tightness and is connected every between dish and the cylindrical shell every dish and second, and described suction tude, interior pipe and steam outlet pipe are arranged in the cylindrical shell and are parallel to the axial of cylindrical shell.
The more detailed technological scheme of the present invention is: a kind of low backpressure muffler, comprise a front cover, cylindrical shell, first every dish, second every dish, suction tude, interior pipe, steam outlet pipe and a rear end cover, the front opening of described suction tude is in front cover, the rear end of suction tude passes first every dish with second every dish, and the open rearward end of suction tude is in rear end cover; Being provided with tightness between the two ends of described cylindrical shell and described front cover and the rear end cover is connected, described first is arranged in the cylindrical shell perpendicular to the cylindrical shell axial direction every the rim every dish and second, first is provided with tightness and is connected every between dish and the cylindrical shell every dish and second, and described suction tude, interior pipe and steam outlet pipe are arranged in the cylindrical shell and are parallel to the axial of cylindrical shell; Pipe is two in described, and the front opening of an interior pipe is in first in dish, and open rearward end is in second in dish, and the front opening of pipe is in second in dish in another, and open rearward end is in rear end cover; The tube wall of described suction tude and interior pipe is provided with some sound attenuation holes.
Advantage of the present invention is:
The present invention is simple in structure, has greatly reduced the exhaust resistance of car load, has reduced exhaust back pressure, has further improved the power of motor, has reduced oil consumption.For the silencing apparatus of single-stage expansion cavity configuration, straight-through perforated pipe of the present invention is the most obvious to the influence of the drag losses of silencing apparatus, and its drag losses coefficient is is promptly imported and exported the ratio of total pressure head and import dynamic pressure, than the drag losses coefficient low 78% in simple expansion chamber.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is a structural representation of the present invention.
Wherein: 1 is front cover; 2 is cylindrical shell; 3 is first every dish; 4 is second every dish; 5 is suction tude; 6 is interior pipe; 7 is steam outlet pipe; 8 is rear end cover; 9 is sound attenuation hole.
Embodiment
Embodiment: a kind of low backpressure muffler, as shown in Figure 1, comprise that a front cover 1, cylindrical shell 2, first manage 6, steam outlet pipes 7 and a rear end cover 8 every dish 3, second in 4, suction tude of dish 5, two, the front opening of described suction tude 5 is in front cover 1, the rear end of suction tude 5 passes first every coiling 3 and second every dish 4, and the open rearward end of suction tude 5 is in rear end cover 8.
Being provided with tightness between the two ends of described cylindrical shell 2 and described front cover 1 and the rear end cover 8 is connected, described first every coiling 3 and second every coiling 4 along being arranged in the cylindrical shell 2 perpendicular to cylindrical shell 2 axial directions, first is provided with tightness and is connected every between dish 4 and the cylindrical shell 2 every dish 3 and second, and described suction tude 5, interior pipe 6 and steam outlet pipe 7 are axially disposed within the cylindrical shell 2 along cylindrical shell 2.In one pipe 6 first every dish 3 and second in the cavity of dish between 4, its front opening is in first in dish 3, open rearward end in second in dish 4; Pipe 6 is in second the cavity between dish 4 and ear end face 8 in another, and its front opening is in second in dish 4, and open rearward end is in rear end cover 8.The tube wall of described suction tude 5 and interior pipe 6 is provided with some sound attenuation holes 9.
The quantity of suction tude 5, interior pipe 6 and steam outlet pipe 7 can be adjusted according to actual needs among the present invention, with suction tude 5 lengthenings, most of gas expands without first chamber and directly enters second chamber or the 3rd chamber, thereby transfer the partial shape resistance in straight tube flowing friction resistance, thereby reduce the resistance of whole system.The present invention is simple in structure, has greatly reduced the exhaust resistance of car load, has reduced exhaust back pressure, has further improved the power of motor, has reduced oil consumption.For the silencing apparatus of single-stage expansion cavity configuration, straight-through perforated pipe is the most obvious to the drag losses influence of silencing apparatus, and its drag losses coefficient is is promptly imported and exported the ratio of total pressure head and import dynamic pressure, than the drag losses coefficient low 78% in simple expansion chamber.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other mode of execution.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (4)
1. low backpressure muffler, comprise that a front cover (1), a cylindrical shell (2), first are every coiling (3), second every dish (4), suction tude (5), interior pipe (6), steam outlet pipe (7) and a rear end cover (8), it is characterized in that: the front opening of described suction tude (5) is in front cover (1), the rear end of suction tude (5) passes first every coiling (3) and second every dish (4), and the open rearward end of suction tude (5) is in rear end cover (8).
2. low backpressure muffler according to claim 1, it is characterized in that: be provided with tightness between the two ends of described cylindrical shell (2) and described front cover (1) and the rear end cover (8) and be connected, described first every coiling (3) and second every coiling (4) along being arranged in the cylindrical shell (2) perpendicular to cylindrical shell (2) axial direction, first is provided with tightness every dish (3) and second between dish (4) and cylindrical shell (2) is connected, and it is interior and be parallel to the axial of cylindrical shell that described suction tude (5), interior pipe (6) and steam outlet pipe (7) are arranged on cylindrical shell (2).
3. low backpressure muffler according to claim 1 and 2, it is characterized in that: pipe (6) is two in described, in one the pipe (6) front opening in first every the dish (3) in, open rearward end in second every the dish (4) in, the front opening of pipe (6) is in second in dish (4) in another, and open rearward end is in rear end cover (8).
4. according to claim 1 or 2 or 3 described low backpressure mufflers, it is characterized in that: the tube wall of described suction tude (5) and interior pipe (6) is provided with some sound attenuation holes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140200A CN101793181A (en) | 2010-03-30 | 2010-03-30 | Low backpressure muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140200A CN101793181A (en) | 2010-03-30 | 2010-03-30 | Low backpressure muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101793181A true CN101793181A (en) | 2010-08-04 |
Family
ID=42586067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010140200A Pending CN101793181A (en) | 2010-03-30 | 2010-03-30 | Low backpressure muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101793181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950375A (en) * | 2011-08-18 | 2013-03-06 | 天津力神电池股份有限公司 | Silencer of spot welder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW501664U (en) * | 2001-08-21 | 2002-09-01 | Jr-Jian Jian | Muffler with pressure regulator |
| CN2677628Y (en) * | 2003-12-25 | 2005-02-09 | 良飞工业有限公司 | Exhaust pipe with u-shaped internal pipe |
| CN2682212Y (en) * | 2004-01-12 | 2005-03-02 | 良飞工业有限公司 | Exhaust pipe |
-
2010
- 2010-03-30 CN CN201010140200A patent/CN101793181A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW501664U (en) * | 2001-08-21 | 2002-09-01 | Jr-Jian Jian | Muffler with pressure regulator |
| CN2677628Y (en) * | 2003-12-25 | 2005-02-09 | 良飞工业有限公司 | Exhaust pipe with u-shaped internal pipe |
| CN2682212Y (en) * | 2004-01-12 | 2005-03-02 | 良飞工业有限公司 | Exhaust pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950375A (en) * | 2011-08-18 | 2013-03-06 | 天津力神电池股份有限公司 | Silencer of spot welder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100804 |