CN2441976Y - Intaking air silencer - Google Patents
Intaking air silencer Download PDFInfo
- Publication number
- CN2441976Y CN2441976Y CN 00230209 CN00230209U CN2441976Y CN 2441976 Y CN2441976 Y CN 2441976Y CN 00230209 CN00230209 CN 00230209 CN 00230209 U CN00230209 U CN 00230209U CN 2441976 Y CN2441976 Y CN 2441976Y
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- CN
- China
- Prior art keywords
- air
- utility
- model
- filtering core
- cylindrical shell
- 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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Abstract
The utility model relates to an air inflow silencer on a diesel engines, which comprises a waterproof cover arranged on a cylinder body and an air filtering core arranged in the cylinder body. The utility model is characterized in that a silencing plate is separately arranged on the lower part of the filtering core on the cylinder body. An air pressure stabilizing cavity is formed between the silencing plate and the filtering core of the air inflow silencer with the structure. The silencing plates has the function of preventing air from flowing back. Stable air mass and moving direction is formed between the filtering core and the silencing plate. Air convection noises is not generated because of intermittent air suction. The utility model has the advantages of reasonable design, simple structure and easy fabrication. The utility model effectively changes air noises generated by intermittent air suction.
Description
The utility model relates to the intake silencer on a kind of internal-combustion engine that is used for, particularly diesel engine.
The invention of internal-combustion engine brings great convenience for production and life, and power source is provided, and is widely used in fields such as communications and transportation, generating, water conservancy irrigation.Internal-combustion engine can be divided into two big classes, also is gasoline engine and diesel engine, and gasoline engine development is fast, excellent performance, but its manufacture process requirement height, operating cost height, so be difficult to the market of replacement diesel engine.And diesel engine promptly has the characteristics that structure is simple relatively, operating cost is low, but noise is big during operation, has restricted its application, how to overcome the noise of internal-combustion engine, and particularly the noise of diesel engine has become the problem of many mechanisms research.The noise source of internal-combustion engine comprises following several respects at least: the noise that the sound that suction and discharge are sent, combustion explosion sound and mechanical transmission produce.Solving noise, need take all factors into consideration the problem of above several respects, is exhaust noise and study maximum at present, unilaterally solved exhaust noise, but another noise source highlights again.The suction port place of existing diesel is equipped with an air filter, and its structure comprises that water proof cover and that a cylindrical shell, is arranged at cylindrical shell top is located at the filter core of crossing in the cylindrical shell, and noise of air that air inlet produces is not all made noise reduction process.Because the air-breathing of diesel engine be intermittent type, the minibreak after high speed is air-breathing, air produces bigger inertia and refluxes in the suction tude ingress, cause big noise, Here it is air suction and noise source, how noise reduction just becomes the object that everybody studies.
The purpose of this utility model is to reduce the intake silencer that intermittent air circulation produces noise in suction port place design one.
Task of the present utility model is achieved in that a kind of intake silencer, comprises the water proof cover that is arranged on the cylindrical shell and is arranged on the interior air filtering core of cylindrical shell, it is characterized in that on the cylindrical shell below the filter core every being provided with an acoustical panel.The intake silencer of this structure forms an air pressure stabilizing cavity between filter core and acoustical panel, and acoustical panel plays the effect of air backflow resistent, forms a stable air mass and a moving direction between filter core and acoustical panel, not because of the air-breathing cross-ventilation noise that produces at intermittence.
The utility model is reasonable in design, and is simple in structure, easy to manufacture, changes the noise of air that intermittently air inlet produces effectively.
Below in conjunction with concrete legend the utility model is described further:
Fig. 1 intake silencer structural representation
Fig. 2 Figure 1A-A sectional drawing
With reference to Fig. 1 and Fig. 2, intake silencer, comprise water proof cover 1 and air filtering core 2 and cylindrical shell 3, this structure is identical with the conventional air filter, the setting of water proof cover 1 can prevent effectively that rainwater from entering, and filter core 2 can filter airborne dust, wherein on the cylindrical shell below the filter core 23 every being provided with an acoustical panel 4, be laid with into the air flue 5 of taper on the acoustical panel 4,8 of adjacent air flue outlets form smooth curved surface 6, the import 7 of taper air flue 5 is that 2 to 5 times of outlet 8 are big, and the bore of outlet 8 is got between 2 to 4mm, and the air flue height is between 20 to 40mm.When moment was air-breathing, air flue 5 produced earial drainage; And when intermittently air-breathing, the air circulation that the air inlet mouth of pipe 9 places produce is most ofly blocked by acoustical panel 4, and change directions along the smooth curved surface 6 of 8 formation of taper air flue outlet, identical with airintake direction again, replenish in the next charge air flow, and form uniform inflow air-flow at filter core 2 places.Use on the diesel engine of the intake silencer of this structure applicable to models such as GB S195, S1100, S1102, S1110, S1115, S1125.
Claims (3)
1, a kind of intake silencer comprises the water proof cover that is arranged on the cylindrical shell and is arranged on the interior air filtering core of cylindrical shell, it is characterized in that on the cylindrical shell below the filter core every being provided with an acoustical panel.
2, intake silencer according to claim 1 is laid with into the air flue of taper on its feature acoustical panel, form smooth curved surface between adjacent air flue outlet.
3, intake silencer according to claim 2, the suction port that it is characterized in that the taper air flue are that 2 to 5 times of outlet are big, and the bore of outlet is got between 2 to 4mm, and the air flue height is between 20 to 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230209 CN2441976Y (en) | 2000-06-16 | 2000-06-16 | Intaking air silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230209 CN2441976Y (en) | 2000-06-16 | 2000-06-16 | Intaking air silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2441976Y true CN2441976Y (en) | 2001-08-08 |
Family
ID=33593344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230209 Expired - Fee Related CN2441976Y (en) | 2000-06-16 | 2000-06-16 | Intaking air silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2441976Y (en) |
-
2000
- 2000-06-16 CN CN 00230209 patent/CN2441976Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |