CN201041061Y - Petrol engine silencer - Google Patents
Petrol engine silencer Download PDFInfo
- Publication number
- CN201041061Y CN201041061Y CNU2007201240489U CN200720124048U CN201041061Y CN 201041061 Y CN201041061 Y CN 201041061Y CN U2007201240489 U CNU2007201240489 U CN U2007201240489U CN 200720124048 U CN200720124048 U CN 200720124048U CN 201041061 Y CN201041061 Y CN 201041061Y
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- CN
- China
- Prior art keywords
- silencing apparatus
- muffler
- cavity
- communicated
- 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 - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to a general gasoline engine used muffler which comprises a muffler outer shell and an air inlet pipe and an air discharging pipe fixedly arranged on the outer shell and connected with the inner cavity of the muffler, the inner cavity of the muffler is provided with a separation board with an empty cavity to separate the inner cavity of the muffler into the upper, the middle, and the lower three cavities, the separation board part of the formed middle cavity is provided with a through hole to connection the upper, the middle and the lower three cavities, the air inlet pipe is connected with the upper cavity, the air discharging pipe is connected with the lower cavity, the outer shell is of double-layer structure on the bottom surface part of the muffler, and a gap is provided between layers. the muffler has reasonable structure, the performance parameters is in accordance with the national standard, and at the same time the heat radiation of the muffler to the cylinder head and the sparkle cap of the muffler is reduced.
Description
Technical field
The utility model relates to a kind of general gasoline engines silencing apparatus.
Background technique
Silencing apparatus is installed on the general gasoline engines, generally be the housing structure of being made by sheet metal, its shell is provided with suction tude and outlet pipe, and suction tude and outlet pipe are communicated with the silencing apparatus inner chamber, the waste gas that motor is discharged is discharged from outlet pipe after suction tude enters the silencing apparatus inner chamber again.
Enter waste gas in the silencing apparatus inner chamber in the silencing apparatus inner chamber through certain operation back, path outside outlet pipe is discharged silencing apparatus, the design in this path directly has influence on the performance of silencing apparatus, and the formation in path is definite by the structure of silencing apparatus.Because the waste gas path of travel of its formation of silencing apparatus of existing structure is not too reasonable, the performance parameter of silencing apparatus is lost as inserting, power loss ratio is difficult for reaching state specified standards (NBS is: insert loss 〉=15dB (A), power loss ratio≤5%) so cause.
In addition, because silencing apparatus is positioned at engine cylinder head and spark cap top on the general gasoline engines, with cylinder head, spark cap close proximity, the heat that silencing apparatus distributes makes the temperature of cylinder head and spark cap raise easily, thereby may bring influence to the proper functioning of petrol engine.
The model utility content
The purpose of this utility model provides a kind of petrol engine silencing apparatus, makes the structure of silencing apparatus more reasonable, reduces the heat radiation of silencing apparatus to engine cylinder head and spark cap simultaneously.
Petrol engine silencing apparatus described in the utility model, comprise muffler shell and be fixed on suction tude and the outlet pipe that is communicated with the silencing apparatus inner chamber on the shell, the dividing plate that is provided with the band cavity in the silencing apparatus inner chamber is separated into three chambeies, upper, middle and lower with the silencing apparatus inner chamber, offering through hole at the described dividing plate place that forms lumen is communicated with three chambeies, upper, middle and lower, described suction tude is communicated with epicoele, outlet pipe is communicated with cavity of resorption, described shell is a double layer construction at the silencing apparatus underside portion, and has the space between layer and the layer.
Described suction tude penetrates from the muffler shell bottom surface, is communicated with epicoele through cavity of resorption, dividing plate to epicoele.
The silencing apparatus lumen is flat, and its volume is less than the volume in the upper and lower chamber of silencing apparatus.
The high-temp waste gas of discharging from motor enters the silencing apparatus epicoele by the silencing apparatus suction tude, and the through hole on dividing plate enters the silencing apparatus lumen, enters the silencing apparatus cavity of resorption from the through hole of lumen on dividing plate again, discharges from muffler tail pipe at last.
The path of travel of its waste gas of this kind silencing apparatus can effectively improve the performance parameter of petrol engine with silencing apparatus, meets the NBS of inserting loss 〉=15dB (A), power loss ratio≤5%.
Because silencing apparatus is positioned at the petrol engine top, the high-temp waste gas that motor is discharged at first enters the silencing apparatus epicoele by the silencing apparatus suction tude, make the temperature of epicoele the highest, help scattering and disappearing of waste-gas heat like this, and epicoele has been avoided the heat radiation of the highest exhaust flow countercylinder head of temperature and spark cap from engine cylinder head and spark cap farthest; And the double layer construction of silencing apparatus underside portion shell can play good heat-blocking action, the heat radiation that cylinder head and spark cap are subjected to is reduced to minimum, thereby reduced the heat radiation of silencing apparatus effectively, guaranteed the proper functioning of petrol engine engine cylinder head and spark cap.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1 looks generalized section for petrol engine described in the utility model with the master of silencing apparatus;
Fig. 2 is the sectional view of A-A line among Fig. 1.
Embodiment
As depicted in figs. 1 and 2, this petrol engine comprises muffler shell 9 with silencing apparatus and is fixed on suction tude 8 and the outlet pipe 7 that is communicated with the silencing apparatus inner chamber on the shell 9, the dividing plate 1 that is provided with the band cavity in the silencing apparatus inner chamber is separated into three chambeies 2,3,5, upper, middle and lower with the silencing apparatus inner chamber, described cavity is the lumen 3 of silencing apparatus, it is to be fitted mutually by two sheet metals to form, lumen 3 is flat, and its volume is less than the volume in the upper and lower chamber 2,5 of silencing apparatus.Offering through hole 4 at described dividing plate 1 place that forms lumen 3 is communicated with three chambeies 2,3,5, upper, middle and lower.Suction tude 8 penetrates from muffler shell 9 bottom surfaces, be communicated with epicoele 2 through cavity of resorption 5, dividing plate 1 to epicoele 2, and outlet pipe 7 is communicated with cavity of resorption 5, passes from silencing apparatus cavity of resorption 5 shells 9 sides.Shell 9 is a double layer construction at the silencing apparatus underside portion, and has space 6 between layer and the layer.
Claims (3)
1. petrol engine silencing apparatus, comprise muffler shell (9) and be fixed on suction tude (8) and the outlet pipe (7) that is communicated with the silencing apparatus inner chamber on the shell, it is characterized in that: the dividing plate (1) that is provided with the band cavity in the silencing apparatus inner chamber is separated into the silencing apparatus inner chamber, in, following three chambeies (2,3,5), offering through hole (4) at the described dividing plate place that forms lumen will go up, in, three chambeies are communicated with down, described suction tude (8) is communicated with epicoele (2), outlet pipe (7) is communicated with cavity of resorption (5), described shell is a double layer construction at the silencing apparatus underside portion, and has space (6) between layer and the layer.
2. according to the described petrol engine silencing apparatus of claim 1, it is characterized in that: described suction tude (8) penetrates from muffler shell (9) bottom surface, is communicated with epicoele through cavity of resorption (5), dividing plate (1) to epicoele (2).
3. according to claim 1 or 2 described petrol engine silencing apparatuss, it is characterized in that: silencing apparatus lumen (3) is flat, and its volume is less than the volume of the upper and lower chamber of silencing apparatus (2,5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201240489U CN201041061Y (en) | 2007-04-17 | 2007-04-17 | Petrol engine silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201240489U CN201041061Y (en) | 2007-04-17 | 2007-04-17 | Petrol engine silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041061Y true CN201041061Y (en) | 2008-03-26 |
Family
ID=39252766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201240489U Expired - Fee Related CN201041061Y (en) | 2007-04-17 | 2007-04-17 | Petrol engine silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201041061Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876264A (en) * | 2010-03-30 | 2010-11-03 | 宁波大叶园林设备有限公司 | There are five chambeies to contain the silencing apparatus of wedge |
| CN102817687A (en) * | 2012-08-06 | 2012-12-12 | 郭建华 | Novel silencer |
| CN104564238A (en) * | 2013-10-17 | 2015-04-29 | 苏州科瓴精密机械科技有限公司 | Silencer for miniature internal combustion engines |
| WO2018095134A1 (en) * | 2016-11-28 | 2018-05-31 | Compagnie Plastic Omnium | Exhaust tailpipe system |
-
2007
- 2007-04-17 CN CNU2007201240489U patent/CN201041061Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876264A (en) * | 2010-03-30 | 2010-11-03 | 宁波大叶园林设备有限公司 | There are five chambeies to contain the silencing apparatus of wedge |
| CN101876264B (en) * | 2010-03-30 | 2012-10-03 | 宁波大叶园林设备有限公司 | Silencer with wedges and five chambers |
| CN102817687A (en) * | 2012-08-06 | 2012-12-12 | 郭建华 | Novel silencer |
| CN104564238A (en) * | 2013-10-17 | 2015-04-29 | 苏州科瓴精密机械科技有限公司 | Silencer for miniature internal combustion engines |
| CN104564238B (en) * | 2013-10-17 | 2017-12-05 | 苏州科瓴精密机械科技有限公司 | The muffler of compact internal combustion engine |
| WO2018095134A1 (en) * | 2016-11-28 | 2018-05-31 | Compagnie Plastic Omnium | Exhaust tailpipe system |
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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 POWER MACHINE CO., LTD. Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO. LTD. Effective date: 20101115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400039 NO.25, ERLANG ROAD, SHIQIAOPU, HIGH-TECH. ZONE, CHONGQING CITY TO: 400054 CHAOYOUCHANG, BA NAN DISTRICT, CHONGQING CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101115 Address after: 400054 Banan District, Chongqing fried oil field Patentee after: Chongqing Zongshen General Power Machine Co., Ltd. Address before: 400039, No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20140417 |