CN2849175Y - Noise reducer - Google Patents
Noise reducer Download PDFInfo
- Publication number
- CN2849175Y CN2849175Y CN 200520010299 CN200520010299U CN2849175Y CN 2849175 Y CN2849175 Y CN 2849175Y CN 200520010299 CN200520010299 CN 200520010299 CN 200520010299 U CN200520010299 U CN 200520010299U CN 2849175 Y CN2849175 Y CN 2849175Y
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- CN
- China
- Prior art keywords
- pipe
- cavity
- housing
- relief opening
- outlet
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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.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a silencer for minitype universal gasoline generators. A cavity chamber composed of a casing body in the prior art is provided with an exhaust air inlet and an exhaust air outlet. A resonance cavity and an attenuation cavity are isolated with a partitioning plate in the cavity chamber. The air inlet, the air outlet, the resonance cavity and the attenuation cavity are connected with pipes. A connecting pipe at the air outlet position in the casing body is made into a honeycomb-shaped outlet. An outer layer pipe covers the honeycomb-shaped outlet outside. One end of the outer layer pipe is sealed on the connecting pipe and the other end is connected with the air outlet. A simple pipe cavity is formed by simply using the arranged honeycomb-shaped outlet and the outer layer pipe. The utility model overcomes the defect of poor sound reducing effect in the prior art because a plurality of resonant cavities are inconvenient to install due to the limitation of the space structure. On the basis of not influencing the power of the engine and fundamentally not changing the structure of the prior art, the utility model has the advantages of the reduction of noise, simple structure, convenient manufacture, use and maintenance and low cost.
Description
Technical field
The utility model relates to a kind of silencing apparatus, in particular for the silencing apparatus of Small Universal gasoline engine generator air outlet flue.
Technical background
In order to reduce the noise of Small Universal gasoline engine generator, silencing apparatus generally is set on waste pipe, usually the silencing apparatus principle that adopts is to allow the tail gas of sounding through pipe or a chamber bigger than outlet pipe, in pipe or the chamber resonant cavity and damping chamber are arranged, sound reduces through resonance and decay back successively, generally need the pipe of certain-length or chamber to decay in this process, for minitype gas dynamotor, structural requirement is very compact, silencing apparatus must be small and exquisite, do not allow long pipe, and in a bigger pipe or chamber, isolate resonant cavity and damping chamber with dividing plate usually, overlapped arrangement and be together in series between these chambeies with pipe, so that can save the length direction space, owing to be subjected to the restriction of spatial structure, resonant cavity is generally only established one, the resonant cavity coupling also is not easy to reach best, thereby it is bad to cause sound to reduce effect; Also have, because the engine power of small generator is little, exhaust pressure is little, silencing apparatus is very near apart from the engine exhaust port distance, if adopt the method that increases resonant cavity and damping chamber, can cause exhaust pressure wave in advance, make waste gas be not easy to drain only, easily cause defectives such as underpower.
The model utility content
The purpose of this utility model provides a kind of silencing apparatus, overcome the above-mentioned defective that is applied to the reduction noise difficulty of the prior art existence on the Small Universal gasoline engine generator, not influencing engine power and not changing substantially on the basis of prior art constructions, effectively reduce noise.
Silencing apparatus described in the utility model, on the chamber of forming by housing of prior art, waste gas inlet and relief opening are set, the chamber inner-use clapboard isolates resonant cavity and damping chamber, use between suction port, relief opening, resonant cavity and the damping chamber on the pipe connection basis, the connecting tube of relief opening position in the housing is arranged to the honeycombed outlet, external pipe covers on outside the honeycombed outlet, and an end seals the other end connection relief opening on connecting tube.Honeycombed outlet and external pipe are formed an easy tube chamber and are played certain resonance effect, make the rapider decay of noise, objectively be equivalent to eliminate the noise once more, simultaneously, said structure is simple, the external pipe size is smaller, does not increase the volume of silencing apparatus, does not just change prior art constructions, the chamber of forming is very little to the exhaust pressure influence, can not cause exhaust pressure wave in advance, just not influence engine power, and reduced noise.
The front end suction port position of housing described in the scheme can be provided with mounting flange, is used for engine exhaust pipe and connects suction port; Relief opening is arranged on the rear end of housing; The side of housing is provided with the installation hanger.Hanger is installed is used for bearing laying of whole silencing apparatus.The connection of convenient and motor and on small generator, arranging.
Described installation hanger is a T-shape steel, and T-shape steel base is welded on the housing, is provided with on the T-shape web hangers hole is installed.Make manufacturing, use, easy to maintenance, cost is low.
Comprehensively above-mentioned, silencing apparatus described in the utility model, the simple honeycombed outlet and the external pipe that are provided with utilized formed an easy tube chamber, overcome prior art owing to be subjected to the restriction of spatial structure, more resonant cavity inconvenience is established and is caused sound to reduce the bad problem of effect, is not influencing engine power and is not changing substantially on the basis of prior art constructions, reduced noise, and simple in structure, manufacturing, use, easy to maintenance, cost is low.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1 is the structural representation of silencing apparatus described in the utility model;
Fig. 2 is the sectional view of A-A line among Fig. 1.
Embodiment
As shown in Figure 1-Figure 3, silencing apparatus described in the utility model, form chamber by housing 1, waste gas inlet 2 and relief opening 3 are set on it, suction port 2 is arranged on the front end 11 of housing 1, also be provided with mounting flange 12 in front end 11 suction ports 2 positions, mounting flange 12 is used for suction port 2 and is connected with engine exhaust pipe, relief opening 3 is arranged on the rear end 21 of housing 1, the chamber inner-use clapboard 4 of housing 1 isolates resonant cavity and damping chamber, suction port 2, relief opening 3, connect with pipe 6 between resonant cavity and the damping chamber, so that engine exhaust comes out through having reduced sound behind resonant cavity and the damping chamber successively, and in housing 1 inside, the connecting tube of relief opening 3 positions is arranged to honeycombed outlet 8 for 6 one sections, covers on honeycombed with one than connecting tube 6 big external pipe 7 and exports 8 outsides, and external pipe 7 one ends seal on connecting tube 6, the other end connects relief opening 3, honeycombed outlet 8 and external pipe 7 are formed an easy tube chamber and are played certain resonance effect, make the rapider decay of noise, objectively are equivalent to eliminate the noise once more;
The side of housing 1 is provided with installs hanger 30, it is a T-shape steel that hanger 30 is installed, and T-shape steel base is welded on the housing 1, is provided with two on the T-shape web hangers hole 31 is installed, hangers hole 31 is installed wears bolt, whole silencing apparatus is connected and fixed in the generator frame.
Claims (3)
1, a kind of silencing apparatus, waste gas inlet (2) and relief opening (3) are set on the chamber of being made up of housing (1), chamber inner-use clapboard (4) isolates resonant cavity and damping chamber, connect with pipe (6) between suction port, relief opening, resonant cavity and the damping chamber, it is characterized in that: the connecting tube (6) of the interior relief opening of described housing (1) (3) position is arranged to honeycombed outlet (8), external pipe (7) covers on outside the honeycombed outlet (8), and one end go up sealing at connecting tube (6), the other end connects relief opening (3).
2, silencing apparatus according to claim 1 is characterized in that, front end (11) suction port (2) position of described housing (1) is provided with mounting flange (12).Be used for engine exhaust pipe and connect suction port (2); Relief opening (3) is arranged on the rear end (21) of housing (1); The side of housing (1) is provided with installs hanger (30).
3, silencing apparatus according to claim 2 is characterized in that, described installation hanger (30) is a T-shape steel, and T-shape steel base is welded on the housing (1), is provided with on the T-shape web hangers hole (31) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010299 CN2849175Y (en) | 2005-11-14 | 2005-11-14 | Noise reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010299 CN2849175Y (en) | 2005-11-14 | 2005-11-14 | Noise reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849175Y true CN2849175Y (en) | 2006-12-20 |
Family
ID=37521659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010299 Expired - Fee Related CN2849175Y (en) | 2005-11-14 | 2005-11-14 | Noise reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849175Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482045A (en) * | 2009-02-03 | 2009-07-15 | 重庆隆鑫机车有限公司 | Silencer of all-terrain vehicle |
-
2005
- 2005-11-14 CN CN 200520010299 patent/CN2849175Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482045A (en) * | 2009-02-03 | 2009-07-15 | 重庆隆鑫机车有限公司 | Silencer of all-terrain vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING ZONGSHEN GENERAL DYNAMICS MACHINERY CO. Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO., LTD. Effective date: 20080307 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080307 Address after: Banan District, Chongqing oil field, zip code: 400054 Patentee after: Chongqing Zongshen General Power Machine Co., Ltd. Address before: No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu, 400039 Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061220 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |