CN203114399U - Automobile silencer - Google Patents
Automobile silencer Download PDFInfo
- Publication number
- CN203114399U CN203114399U CN 201320054681 CN201320054681U CN203114399U CN 203114399 U CN203114399 U CN 203114399U CN 201320054681 CN201320054681 CN 201320054681 CN 201320054681 U CN201320054681 U CN 201320054681U CN 203114399 U CN203114399 U CN 203114399U
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- CN
- China
- Prior art keywords
- hole
- outlet pipe
- shell
- pipe
- exhaust 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.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
An automobile silencer comprises an outer shell, an air inlet end cover, an air outlet end cover and at least one exhaust pipe, wherein one end of the outer shell is connected with the air inlet end cover, and the other end of the outer shell is connected with the air outlet end cover. A first through hole is formed in the air inlet end cover. A second through hole is formed in the air outlet end cover. An air inlet of each exhaust pipe stretches out of the outer shell through the first through hole. An air outlet end of each exhaust pipe stretches out of the outer shell through the second through hole. The diameter of the air inlet of each exhaust pipe is equal to that of the first through hole. The diameter of an air outlet of each exhaust pipe is equal to that of the second through hole. The air outlet of each exhaust pipe is higher than the air inlet. Each exhaust pipe is connected with the outer shell through a supporting plate. The sectional area of each exhaust pipe is changed in a similarly conical mode, and a plurality of exhaust pipes are arranged, so that high-temperature and high-pressure air can be interfered differently, sound volume can be further reduced and weakened, and a silencing effect can be greatly improved.
Description
Technical field
The utility model relates to a kind of automobile engine exhaust system silencing apparatus.
Background technique
The huge sound that produces during for the high temperature and high pressure gas after the elimination motor discharge burning, automobile need arrange silencing apparatus at the exhaust duct place; Dissipative muffler absorbs acoustic energy by filling sucting sound material in exhaust duct and reaches the noise elimination purpose; Reactive muffler is in silencing apparatus inside the sectional area of pipeline sharply to be strengthened or dwindles in a certain length part, makes sound wave produce reflection when propagating and destructive interference reaches the noise elimination purpose; Existing silencing apparatus has an inlet end, and the sectional area of outlet pipe is with low uncertainty; This automotive muffler exists noise elimination effect, the particularly relatively poor deficiency of high frequency noise elimination effect.
Summary of the invention
Goal of the invention of the present utility model is to overcome the above-mentioned deficiency of prior art, and provides a kind of low frequency, intermediate frequency and high frequency that the automotive muffler of better noise elimination effect is arranged.
The technical solution of the utility model is: a kind of automotive muffler comprises shell, air inlet end cap, the end cap of giving vent to anger, at least one outlet pipe; Described shell one end is connected with the air inlet end cap; The described shell the other end is connected with the end cap of giving vent to anger; Be provided with first through hole in the described air inlet end cap; Be provided with second through hole in the described end cap of giving vent to anger; The suction port of described outlet pipe stretches out and shell through first through hole; Outlet side second through hole of described outlet pipe stretches out and shell; The suction port diameter of described outlet pipe is identical with first through-hole diameter; The air outlet diameter of described outlet pipe is identical with second through-hole diameter; The height of the air outlet of described outlet pipe is higher than the height of suction port; Described outlet pipe is connected with shell through dunnage; Described enclosure is provided with dunnage, fixedlys connected with outer casing inner wall around the described dunnage; Described dunnage is provided with exhaust port; Described outlet pipe is fixedlyed connected with dunnage; The sectional area of described outlet pipe is changed to the class taper.
The Placement of described dunnage and shell is the mode of screw or adpting flange.
Described outlet pipe is made of downtake pipe and second exhaust pipe, is provided with connecting tube between described downtake pipe and second exhaust pipe, and described connecting tube is communicated with downtake pipe and second exhaust pipe.
Described enclosure parcel sound-absorbing material.
Compare with present technology, the utility model outlet pipe sectional area is the class taper to be changed, add a plurality of outlet pipes are set, make high temperature and high pressure gas obtain different interference, being conducive to sound further reduces and depletion, make the noise elimination effect be greatly improved, low frequency, intermediate frequency and high frequency have better noise elimination effect.
Description of drawings
The embodiment who provides below in conjunction with accompanying drawing further specifies the utility model.
Fig. 1 is structural representation of the present utility model.
Embodiment
Among Fig. 1, a kind of silencing apparatus, shell 5 one ends are connected with air inlet end cap 10, and the other end is connected with the end cap 12 of giving vent to anger; Downtake pipe 3 is connected with the air inlet end cap through first through hole 9, second exhaust pipe 8 is connected with the end cap of giving vent to anger through second through hole 11, downtake pipe 3 was connected with second exhaust pipe 8 through connecting tube 4, dunnage 2, dunnage 6 are provided with exhaust port, dunnage 2, dunnage 6 are used for supporting downtake pipe 3 and second exhaust pipe 8, dunnage 2, dunnage 6 are connected with shell 5, and the suction port 1 of downtake pipe 3 stretches out in outside the housing, and the air outlet 7 of second exhaust pipe 8 stretches out in outside the housing.The sectional area of downtake pipe 3 and second exhaust pipe 8 is changed to the class taper.
Claims (4)
1. an automotive muffler is characterized in that, comprises shell, air inlet end cap, the end cap of giving vent to anger, at least one outlet pipe; Described shell one end is connected with the air inlet end cap; The described shell the other end is connected with the end cap of giving vent to anger; Be provided with first through hole in the described air inlet end cap; Be provided with second through hole in the described end cap of giving vent to anger; The suction port of described outlet pipe stretches out and shell through first through hole; Outlet side second through hole of described outlet pipe stretches out and shell; The suction port diameter of described outlet pipe is identical with first through-hole diameter; The air outlet diameter of described outlet pipe is identical with second through-hole diameter; The height of the air outlet of described outlet pipe is higher than the height of suction port; Described outlet pipe is connected with shell through dunnage; Described enclosure is provided with dunnage, fixedlys connected with outer casing inner wall around the described dunnage; Described dunnage is provided with exhaust port; Described outlet pipe is fixedlyed connected with dunnage; The sectional area of described outlet pipe is changed to taper.
2. require 1 described a kind of automotive muffler according to the plate profit, it is characterized in that, the Placement of described dunnage and shell is the mode of screw or adpting flange.
3. require 1 or 2 described a kind of automotive mufflers according to the plate profit, it is characterized in that, described outlet pipe is made of downtake pipe and second exhaust pipe, is provided with connecting tube between described downtake pipe and second exhaust pipe, and described connecting tube is communicated with downtake pipe and second exhaust pipe.
4. require 1 or 2 described a kind of automotive mufflers according to the plate profit, it is characterized in that, described enclosure parcel sound-absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054681 CN203114399U (en) | 2013-01-31 | 2013-01-31 | Automobile silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054681 CN203114399U (en) | 2013-01-31 | 2013-01-31 | Automobile silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114399U true CN203114399U (en) | 2013-08-07 |
Family
ID=48894757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054681 Expired - Fee Related CN203114399U (en) | 2013-01-31 | 2013-01-31 | Automobile silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368767A (en) * | 2015-07-24 | 2017-02-01 | 长城汽车股份有限公司 | Vehicle and muffler thereof |
-
2013
- 2013-01-31 CN CN 201320054681 patent/CN203114399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368767A (en) * | 2015-07-24 | 2017-02-01 | 长城汽车股份有限公司 | Vehicle and muffler thereof |
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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: 20130807 Termination date: 20180131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |