CN202402121U - Exhaust muffler outer cover of petrol engine - Google Patents
Exhaust muffler outer cover of petrol engine Download PDFInfo
- Publication number
- CN202402121U CN202402121U CN2011205326220U CN201120532622U CN202402121U CN 202402121 U CN202402121 U CN 202402121U CN 2011205326220 U CN2011205326220 U CN 2011205326220U CN 201120532622 U CN201120532622 U CN 201120532622U CN 202402121 U CN202402121 U CN 202402121U
- Authority
- CN
- China
- Prior art keywords
- muffler outer
- outer cover
- muffler
- outer hood
- petrol 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 - Lifetime
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- Exhaust Silencers (AREA)
Abstract
An exhaust muffler outer cover of a petrol engine is characterized in that the muffler outer cover is double-layered and sleeved in a riveted manner, and an interlayer is formed in the middle of the muffler outer cover. According to the utility model, the muffler outer cover is double-layered and sleeved in a riveted manner; the original muffler reinforcing plate is substituted by a layer of muffler outer cover; the two layers of muffler outer covers are similar in structure and shape, and the problems of deformation of a welding piece and difficulty in positioning the welding piece during the welding caused by the conventional welding manner are solved, so that the positioning function is guaranteed while the direct heat-conducting range is enlarged at the same time, and while the improvement on the heat radiating efficiency can be guaranteed, the manufacturing consistency of products is improved, the manufacturing technology is simplified, and the appearance quality is excellent.
Description
Technical field
The utility model relates to a kind of muffler outer hood, relates in particular to a kind of petrol engine exhaust silencer outer cover.
Background technique
Existing petrol engine exhaust silencer comprises silencing apparatus, muffler outer hood and be welded on the stiffening plate on the muffler outer hood.After the waste gas of motor is discharged from exhaust outlet of combustion chamber, via the silencing apparatus noise reduction of decaying, at last waste gas is entered in the air again.Owing to flow through the high temperature air of silencing apparatus the silencing apparatus temperature is raise; In case silencing apparatus exposes at external engine, just might cause the accident, therefore; The petrol engine exhaust silencer covers with the silencing apparatus of muffler outer hood with high temperature usually, directly exposes in air to avoid silencing apparatus.Consideration to complete machine outward appearance, compactness normally muffler outer hood is assemblied on the silencing apparatus, and the effect of stiffening plate is exactly to locate muffler outer hood, makes it to be covered in outside the silencing apparatus, prevents that the silencing apparatus of high temperature from exposing in air.Existing muffler outer hood adopts welding manner to be connected with stiffening plate usually; And in the welding process of muffler outer hood and stiffening plate; The solder joint that stress deformation that stiffening plate location difficulty, welding produce and welding produce, welding slag or the like all can cause the muffler outer hood distortion.Not only make appearance quality poor, and influence the usability of motor, also influence radiating efficiency simultaneously.
The model utility content
The purpose of the utility model is to provide a kind of petrol engine exhaust silencer outer cover that can simplify production technology, improve the function of conformity of production and satisfied heat radiation.
The purpose of the utility model is achieved in that a kind of petrol engine exhaust silencer outer cover, it is characterized in that: said muffler outer hood is bilayer and riveted suit, the middle interlayer that forms.
In order to make two muffler outer hoods just can accomplish riveted through simple frock clamping, above-mentioned two-layer muffler outer hood comprises muffler outer hood I and muffler outer hood II, and its structure and shape is similar and be provided with the installing and locating hole in same position.
In order to improve radiating efficiency, above-mentioned muffler outer hood I (1) and muffler outer hood II (2) are provided with radiation hole.
The utlity model has following beneficial effect; The utility model muffler outer hood is bilayer and riveted suit; Replace original silencing apparatus stiffening plate with one deck muffler outer hood; And two-layer silencer outer cover structure shape is similar, has overcome the difficulty of weldment location in the weldment that existing welding manner caused distortion, the welding process, when guaranteeing locating function, has extended the scope of direct heat conduction; When guaranteeing that radiating efficiency improves, the conformity of production, simplification production technology and the appearance quality that have improved product are good.
Description of drawings
Fig. 1 is the utility model embodiment muffler outer hood I structural representation;
Fig. 2 is the utility model embodiment muffler outer hood II structural representation;
Fig. 3 assembles schematic representation for the utility model embodiment.
Embodiment
Embodiment, a kind of petrol engine exhaust silencer outer cover comprises the muffler outer hood that silencing apparatus 6 is outer with being arranged on silencing apparatus 6, muffler outer hood is that bilayer comprises that muffler outer hood I 1 is with muffler outer hood II 2 and locate the riveted suit on the edge of, the middle interlayer 5 that forms; Muffler outer hood I 1 and same position in bottom similar with muffler outer hood II 2 structure and shape is provided with the size positioning hole 3 identical with shape, on the sidewall of muffler outer hood I 1, muffler outer hood II 2, is provided with radiation hole 4.
The heat part that the rising of silencing apparatus 6 temperature is produced is diffused in the air through muffler outer hood I 1 and muffler outer hood II 2, and another part passes through the outer surface radiation of silencing apparatus 6 outer surfaces, muffler outer hood I 1 and muffler outer hood II 2 to air.
Claims (3)
1. petrol engine exhaust silencer outer cover, it is characterized in that: said muffler outer hood is bilayer and riveted suit, the middle interlayer (5) that forms.
2. petrol engine exhaust silencer outer cover as claimed in claim 1 is characterized in that: said double-deck muffler outer hood comprises muffler outer hood I (1) and muffler outer hood II (2), and its structure and shape is similar and in same position positioning hole (3) is set.
3. petrol engine exhaust silencer outer cover as claimed in claim 2 is characterized in that: said muffler outer hood I (1) and muffler outer hood II (2) are provided with radiation hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205326220U CN202402121U (en) | 2011-12-19 | 2011-12-19 | Exhaust muffler outer cover of petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205326220U CN202402121U (en) | 2011-12-19 | 2011-12-19 | Exhaust muffler outer cover of petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402121U true CN202402121U (en) | 2012-08-29 |
Family
ID=46699772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205326220U Expired - Lifetime CN202402121U (en) | 2011-12-19 | 2011-12-19 | Exhaust muffler outer cover of petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131899A (en) * | 2014-07-22 | 2014-11-05 | 柳州柳工挖掘机有限公司 | Engine hood |
| CN107165722A (en) * | 2017-07-19 | 2017-09-15 | 重庆宗申通用动力机械有限公司 | A kind of universal petrol engine silencer outer cover |
-
2011
- 2011-12-19 CN CN2011205326220U patent/CN202402121U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131899A (en) * | 2014-07-22 | 2014-11-05 | 柳州柳工挖掘机有限公司 | Engine hood |
| CN104131899B (en) * | 2014-07-22 | 2016-08-31 | 柳州柳工挖掘机有限公司 | Hood |
| CN107165722A (en) * | 2017-07-19 | 2017-09-15 | 重庆宗申通用动力机械有限公司 | A kind of universal petrol engine silencer outer cover |
| CN107165722B (en) * | 2017-07-19 | 2023-09-08 | 重庆宗申通用动力机械有限公司 | Muffler outer cover of general gasoline engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |