CN201232578Y - Engine silencer front noise deadener for automobile engine - Google Patents
Engine silencer front noise deadener for automobile engine Download PDFInfo
- Publication number
- CN201232578Y CN201232578Y CNU2008200411583U CN200820041158U CN201232578Y CN 201232578 Y CN201232578 Y CN 201232578Y CN U2008200411583 U CNU2008200411583 U CN U2008200411583U CN 200820041158 U CN200820041158 U CN 200820041158U CN 201232578 Y CN201232578 Y CN 201232578Y
- Authority
- CN
- China
- Prior art keywords
- flange
- core body
- cylindrical shell
- body pipe
- car engine
- 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.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses an exhaust muffler for an automotive engine, comprising an intake flange, an intake pipe, a core pipe, a cylinder body and an outgassing flange. The core pipe is provided with a first narrow fissure and a second narrow fissure which are formed by the outward opening of two guide strips in a V shape and arranged evenly. A metal shock pad is arranged between the cylinder body and the outgassing flange. The intake flange is connected with the intake pipe by welded joint. The intake pipe, the core pipe and the cylinder body are connected by the welded joint. The outgasing end of the core pipe is connected with the cylinder body by compression joint. The cylinder body is connected with the outgassing flange by compression joint. In the narrow slit structure, the staggered air stream direction makes the noise counteract each other; consequently the effect of reducing low frequency noise can be achieved. Therefore, the effect of reducing the low frequency noise of the muffler with the narrow slit structure is more obvious than the muffler with round perforation structure.
Description
Technical field
The utility model relates to a kind of automobile engine to exhaust premuffler, belongs to the automobile chassis annex.
Background technique
The structure of premuffler is that the core body pipe is arranged in the middle of the silencer cylinder in the prior art, core body pipe two ends connect suction tude and steam outlet pipe respectively, suction tude is connected inlet flange respectively and the flange of giving vent to anger again with steam outlet pipe, be evenly distributed with circular hole on the core body pipe, passage as air-flow turnover core body pipe, air-flow flows mutually, collides and reduce acoustic energy, thereby reduce noise in the process by circular hole turnover core body pipe.But the core body pipe of circular hole in use, and sound deadening capacity is little, and low-frequency noise is bigger, influences the travelling comfort of car load.
Summary of the invention
The purpose of this utility model is to solve above-mentioned deficiency, improves the ability of exhaust silencer assembly noise reduction, reduces low-frequency noise, improves the travelling comfort of automobile.
The technical solution of the utility model is a kind of car engine front silencer, comprise inlet flange, suction tude, core body pipe, cylindrical shell, the flange of giving vent to anger, the core body pipe is provided with equally distributed first narrow slit that is made of two V-shaped outside unlatchings of guide plate, second narrow slit.
Cylindrical shell and give vent to anger and be provided with beam between the flange; Described cylindrical shell and the beam material of giving vent to anger between the flange are metal; Adopt welding method to be connected between described gas flange and the suction tude; Adopt welding method to be connected between described suction tude, core body pipe and the cylindrical shell; Adopt between the outlet side of described core body pipe and the cylindrical shell and compress mode and be connected; Described cylindrical shell compresses mode and is connected with giving vent to anger between the flange to adopt.
Beneficial effect: narrow slit structure is to be formed by the development of circular perforations plate structure on the core body pipe, become the form of parallel narrow slit when circular port, when narrow slit length and wave length of sound quite or when longer, be the narrow structure that meets, the slit structure, interlaced because of the direction of air-flow, thereby being cancelled out each other, noise increased the effect that the reduction low frequency is made an uproar, therefore, the silencing apparatus of narrow slit structure is more effective to reducing low-frequency noise than circular perforations structure silencing apparatus.
Description of drawings
Fig. 1 is the utility model car engine front silencer structural drawing;
Fig. 2 is core body tubular construction figure among Fig. 2;
Fig. 3 is the unfolded drawing of Fig. 2
Fig. 4 is that the A of Fig. 2 is to view
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of car engine front silencer comprises inlet flange 1, suction tude 2, core body pipe 3, cylindrical shell 4, the flange 7 of giving vent to anger, and core body pipe 3 is provided with equally distributed first narrow slit, 9, the second narrow slits 10 that are made of two guide plate 8 V-shaped outside unlatchings.
Be provided with beam 6 between the outlet side 11 of core body pipe 3 and the cylindrical shell 4, the beam material is a metal.Adopt between the outlet side 11 of core body pipe 3 and cylindrical shell 4 and the beam 6 and compress mode and be connected.
Adopt welding method to be connected between inlet flange 1 and the suction tude 2, the employing welding method is connected between suction tude 2, core body pipe 3 and the cylindrical shell 4, and described cylindrical shell compresses mode with the employing of giving vent to anger between the flange and is connected.
The premuffler working procedure: air-flow is flow in the core body pipe 3 by suction tude 2, flow in the noise elimination cavity 5 by first slit 9 on the core body pipe 3 and second slit 10 again, flow in the noise elimination cavity 5, turn back in the core body pipe 3 by slit again, flow out premuffler by core body pipe 3, gas has reduced acoustic energy in flowing mutually, colliding.Thereby reduction exhaust sound.
Claims (7)
1, a kind of car engine front silencer comprises inlet flange, suction tude, core body pipe, cylindrical shell, the flange of giving vent to anger, and it is characterized in that: the core body pipe is provided with equally distributed first narrow slit that is made of two V-shaped outside unlatchings of guide plate, second narrow slit.
2, car engine front silencer according to claim 1 is characterized in that: cylindrical shell and give vent to anger and be provided with beam between the flange.
3, car engine front silencer according to claim 2 is characterized in that: described cylindrical shell and the beam material of giving vent to anger between the flange are metal.
4, car engine front silencer according to claim 1 is characterized in that: described gas is sent out and is adopted welding method to be connected between orchid and the suction tude.
5, car engine front silencer according to claim 1 is characterized in that: adopt welding method to be connected between described suction tude, core body pipe and the cylindrical shell.
6, car engine front silencer according to claim 1 is characterized in that: adopt between the outlet side of described core body pipe and the cylindrical shell to compress mode and be connected.
7, car engine front silencer according to claim 1 is characterized in that: described cylindrical shell compresses mode and is connected with giving vent to anger between the flange to adopt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200411583U CN201232578Y (en) | 2008-07-24 | 2008-07-24 | Engine silencer front noise deadener for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200411583U CN201232578Y (en) | 2008-07-24 | 2008-07-24 | Engine silencer front noise deadener for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201232578Y true CN201232578Y (en) | 2009-05-06 |
Family
ID=40618955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200411583U Expired - Fee Related CN201232578Y (en) | 2008-07-24 | 2008-07-24 | Engine silencer front noise deadener for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201232578Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2460889C1 (en) * | 2011-01-20 | 2012-09-10 | Государственное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" | Automotive ice exhaust gas silencer |
| CN104153847A (en) * | 2014-03-18 | 2014-11-19 | 成都陵川常友汽车部件制造有限公司 | Double door-and-window shape silencing barrel single partition plate assembly |
| CN104153848A (en) * | 2014-03-18 | 2014-11-19 | 成都陵川常友汽车部件制造有限公司 | Double-door-window-shaped silencing pot partition plate assembly |
-
2008
- 2008-07-24 CN CNU2008200411583U patent/CN201232578Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2460889C1 (en) * | 2011-01-20 | 2012-09-10 | Государственное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" | Automotive ice exhaust gas silencer |
| CN104153847A (en) * | 2014-03-18 | 2014-11-19 | 成都陵川常友汽车部件制造有限公司 | Double door-and-window shape silencing barrel single partition plate assembly |
| CN104153848A (en) * | 2014-03-18 | 2014-11-19 | 成都陵川常友汽车部件制造有限公司 | Double-door-window-shaped silencing pot partition plate assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |