CN203067059U - Silencer for exhaust system of automobile engine - Google Patents
Silencer for exhaust system of automobile engine Download PDFInfo
- Publication number
- CN203067059U CN203067059U CN 201320047715 CN201320047715U CN203067059U CN 203067059 U CN203067059 U CN 203067059U CN 201320047715 CN201320047715 CN 201320047715 CN 201320047715 U CN201320047715 U CN 201320047715U CN 203067059 U CN203067059 U CN 203067059U
- Authority
- CN
- China
- Prior art keywords
- section
- sound
- diffuser
- contraction section
- silencing apparatus
- 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 provides a silencer for an exhaust system of an automobile engine. A shell is sequentially provided with a diffusion section, a sound adsorption section and a contraction section; the diffusion section, the sound adsorption section and the contraction section are mutually communicated to form an exhaust passage; the sound adsorption section is provided with a sound adsorption device; the sound adsorption device is formed by coating a perforated tube with a sound adsorption material; one end of the perforated tube is connected with the diffusion section; the other end of the perforated tube is connected with the contraction section; the diffusion section, the sound adsorption section and the contraction section which are formed on the shell are symmetrical about an axis; the contraction section is connected with one end of a gas inlet of the silencer; the other end of the gas inlet is connected with an engine exhaust pipe; and the diffusion section is connected with a gas outlet of the silencer. The utility model provides the silencer which has higher silencing efficiency and has higher output than an existing silencer.
Description
Technical field
The utility model relates to a kind of automobile engine exhaust system silencing apparatus.
Background technique
Silencing apparatus is mounted in the outlet pipe back that is connected with the outlet pipe of engine, reduces the device of exhaust sound for reducing the exhaust pressure face of discharging from engine.Adopt next door formula silencing apparatuss at present in the luxury car more, next door formula silencing apparatus is in the most next doors of the inner installation of silencing apparatus, exhaust is by between the next door, its next door absorbs exhaust sound and the principle of noise reduction, but this noise reduction mode has the next door to the shortcoming of exerting oneself and reducing of the very big engine of opposing of exhaust stream, and tail gas and engine are exerted oneself sound also without any hindering release in the existing silencing apparatus, because the sound of exerting oneself is very big, cause harmful 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 a kind of higher acoustical absorptivity is provided, than the existing silencing apparatus automobile engine exhaust system silencing apparatus of high output more.
The technical solution of the utility model is: housing forms diffuser, sound-absorbing section and contraction section successively; Described diffuser, sound-absorbing section and the mutual breakthrough form of contraction section become exhaust passageway; Described sound-absorbing section is provided with sound arrester, and described sound arrester is wrapped up in sound absorbing material outward by perforated pipe and formed; Described perforated pipe one end is connected with diffuser; The described perforated pipe the other end is connected with contraction section; Diffuser, sound-absorbing section and contraction section that described housing forms are along the axis symmetry; Described contraction section connects suction port one end of silencing apparatus; The other end of described suction port is connected with engine exhaust pipes; Described diffuser connects the air outlet of silencing apparatus.
Described perforated pipe is tool with the cylindrical in a plurality of holes; The diameter in described hole does not wait; Described perforated pipe is formed by metal or resin.
Described sound absorbing material is sponge, pottery or glass wool.
Compared with prior art, the utility model arranges diffuser, sound-absorbing section and contraction section at exhaust passageway, make tail gas improve exerting oneself of engine at exhaust passageway direction emission surface, simultaneously tail gas and the engine sound of exerting oneself also obtains release through diffuser, sound-absorbing section and contraction section, thereby has improved acoustical absorptivity.
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, housing 6 forms diffuser 2, sound-absorbing section 4 and contraction section 3 successively; Diffuser 2, sound-absorbing section 4 and contraction section 3 mutual breakthrough forms become exhaust passageway; Sound-absorbing section 4 is provided with sound arrester, and sound arrester is formed by wrapping up in sound absorbing material sponge 7 outside the perforated pipe 5; Described perforated pipe 5 one ends are connected with diffuser 2; Described perforated pipe 5 the other ends are connected with contraction section 3; Diffuser 2, sound-absorbing section 4 and contraction section 3 that housing 6 forms are along axis 9 symmetries; Contraction section 3 connects suction port 1 one ends of silencing apparatus; Suction port 1 an other end is connected with engine exhaust pipes; Diffuser 2 connects the air outlet 8 of silencing apparatus.
Claims (3)
1. an automobile engine exhaust system silencing apparatus is characterized in that, housing forms diffuser, sound-absorbing section and contraction section successively; Described diffuser, sound-absorbing section and the mutual breakthrough form of contraction section become exhaust passageway; Described sound-absorbing section is provided with sound arrester, and described sound arrester is wrapped up in sound absorbing material outward by perforated pipe and formed; Described perforated pipe one end is connected with diffuser; The described perforated pipe the other end is connected with contraction section; Diffuser, sound-absorbing section and contraction section that described housing forms are along the axis symmetry; Described contraction section connects suction port one end of silencing apparatus; The other end of described suction port is connected with engine exhaust pipes; Described diffuser connects the air outlet of silencing apparatus.
2. automobile engine exhaust system silencing apparatus according to claim 1 is characterized in that, described perforated pipe is tool with the cylindrical in a plurality of holes; The diameter in described hole does not wait; Described perforated pipe is formed by metal or resin.
3. automobile engine exhaust system silencing apparatus according to claim 1 is characterized in that, described sound absorbing material is sponge, pottery or glass wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320047715 CN203067059U (en) | 2013-01-29 | 2013-01-29 | Silencer for exhaust system of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320047715 CN203067059U (en) | 2013-01-29 | 2013-01-29 | Silencer for exhaust system of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067059U true CN203067059U (en) | 2013-07-17 |
Family
ID=48765868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320047715 Expired - Fee Related CN203067059U (en) | 2013-01-29 | 2013-01-29 | Silencer for exhaust system of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067059U (en) |
-
2013
- 2013-01-29 CN CN 201320047715 patent/CN203067059U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20180129 |