CN202690177U - Catalytic muffler capable of reducing temperature of exhaust gas - Google Patents
Catalytic muffler capable of reducing temperature of exhaust gas Download PDFInfo
- Publication number
- CN202690177U CN202690177U CN 201220250293 CN201220250293U CN202690177U CN 202690177 U CN202690177 U CN 202690177U CN 201220250293 CN201220250293 CN 201220250293 CN 201220250293 U CN201220250293 U CN 201220250293U CN 202690177 U CN202690177 U CN 202690177U
- Authority
- CN
- China
- Prior art keywords
- baffler
- exhaust
- exhaust gas
- rear portion
- housing
- 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
Links
Images
Landscapes
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a catalytic muffler capable of reducing the temperature of an exhaust gas. The catalytic muffler comprises a muffler and a shell which encloses the muffler; the muffler is provided with a waste gas port; an exhaust port is formed in the front end of the shell; the waste gas port is formed in the back part of the muffler; an air inlet is formed in the back part of the shell; the air inlet is communicated with a cooling air outlet of an engine; and an exhaust gas mixing channel is formed between the waste gas port and the air inlet, so that the cooling air exhausted from the engine enters the exhaust gas mixing channel, produces a static pressure effect with a high-temperature waste gas exhausted from the waste gas port, and is fully mixed with the high-temperature waste gas, and then the mixed gas is discharged from the exhaust port. According to the catalytic muffler, by utilizing the static pressure effect produced by the cooling air of the engine and the waste gas exhausted by the muffler at a high speed at the tail end of the exhaust gas mixing channel, the air at the normal temperature can be exhausted after entering the exhaust gas mixing channel and being mixed with the high-temperature waste gas, and the temperature of the exhaust gas is effectively reduced, so that the structure is simple, and the cooling effect is good.
Description
Technical field
The utility model relates to the catalyst baffler of the hand-held garden instrument take petrol engine as power.
Background technique
Abroad, the domestic hand-held garden instrument take petrol engine as power of producing of the same trade, in order to reach emission standard, dress adds catalyst in baffler, all faces the difficult problem that temperature of exhaust gas exceeds standard.
Publication number is that the Chinese utility model patent of CN201428497 discloses a kind of catalyst added silencer structure improvement on March 24th, 2010, the suction port of suction chamber is communicated with engine exhaust pipe, be provided with the treatment device that catalyst is housed in the suction chamber, the inlet end of this treatment device is communicated with the suction chamber inner chamber, its outlet side is communicated with the outlet side of suction chamber, the outlet side of suction chamber is communicated with the inlet end of exhaust chamber, the outlet side of exhaust chamber is communicated with the air outlet, waste gas is discharged in the air outlet, suction chamber is nested with at least one hot room, the inlet end of hot room is communicated with the exhaust end for the treatment of device in the suction chamber, the outlet side of hot room is the outlet side of suction chamber, and the high-temp waste gas after processing through catalyst is discharged to exhaust chamber after cooling off through hot room again.It has certain cooling effect, but its complex structure, and cooling-down effect is good not.
The model utility content
Technical problem to be solved in the utility model just provides a kind of catalyst baffler that reduces temperature of exhaust gas, effectively reduces catalyst baffler temperature of exhaust gas.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: the catalyst baffler that can reduce temperature of exhaust gas, the housing that comprises baffler and encirclement baffler, described baffler is provided with exhaust outlet, described housing front end is provided with relief opening, it is characterized in that: described exhaust outlet is located at the baffler rear portion, described housing rear portion is provided with air intlet, described air intlet is communicated with the cooling air outlet of motor, form the exhaust hybrid channel between described exhaust outlet and the air intlet, make the cooling-air of motor enter the exhaust hybrid channel and fully mix afterwards with high-temp waste gas that exhaust outlet is discharged and discharge from relief opening.
Preferably, described relief opening is located at housing front end downside.
Preferably, described baffler is located at forward position in the housing, and baffler and inner walls surround the U-shaped passage.
Preferably, described exhaust outlet be located on the bottom surface, baffler rear portion and exhaust outlet towards the place ahead, described air intlet is located at downside in the housing rear portion.
Preferably, described exhaust outlet is located at baffler rear portion tail end and exhaust outlet towards the below, and described air intlet is located at housing rear portion upside.
Preferably, described baffler is located at medium position in the housing, and baffler and inner walls surround the annular pass.
Preferably, described exhaust outlet be located on the end face of baffler rear portion and exhaust outlet towards the place ahead, described air intlet is located at housing rear portion upside.
The utility model moves after with the relative discharge directions of baffler relief opening, increase the exhaust hybrid channel, housing arranges air intlet at exhaust hybrid channel end, utilize the hydrostatic effects of the cooling air of motor and waste gas terminal formation in the exhaust hybrid channel that baffler is discharged at a high speed, discharge again after making normal temperature air enter the exhaust hybrid channel and high-temp waste gas mixes, effectively reduced temperature of exhaust gas, thus simple in structure, good cooling effect.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described:
Fig. 1 is use schematic representation of the present utility model;
Fig. 2 is the utility model structure principle chart;
Fig. 3 is the utility model embodiment 1 structure principle chart;
Fig. 4 is the utility model embodiment 2 structure principle charts;
Fig. 5 is the utility model embodiment 3 structure principle charts.
Embodiment
The utility model as depicted in figs. 1 and 2 can reduce the catalyst baffler of temperature of exhaust gas, the housing 11 that comprises baffler 1 and encirclement baffler, described baffler is provided with exhaust outlet 13, described housing front end is provided with relief opening 12, described exhaust outlet is located at the baffler rear portion, described housing rear portion is provided with air intlet 14, described air intlet is communicated with the cooling air outlet of motor, forms cooling-air 15 that an exhaust hybrid channel 16 discharges motor between described exhaust outlet and the air intlet and enters the exhaust hybrid channel and produce hydrostatic effects with high-temp waste gas that exhaust outlet is discharged and fully mix and discharge from relief opening afterwards.
Its principle is that petrolic flywheel 2 rotations produce cooling air 3, cooling air enters housing 11 through air intlet 14, cooling-air 15 mixes with the high-temp waste gas of exhaust outlet 13 discharges and discharges from relief opening 12 in the exhaust hybrid channel, the waste gas that utilizes the cooling air of motor and discharge at a high speed is the terminal hydrostatic effects that forms (forming static pressure district 17) in the exhaust hybrid channel, discharge again after making normal temperature air enter the exhaust hybrid channel and high-temp waste gas mixes, effectively reduced temperature of exhaust gas.
Embodiment one:
As shown in Figure 3, move to position A shown in Figure 3 after will being positioned at the relief opening 12 relative discharge directions of baffler 1 front, increase exhaust hybrid channel B, at exhaust hybrid channel end air intlet C(relief opening 12 is set and is located at housing 11 front end downsides, baffler 1 is located at forward position in the housing, baffler and inner walls surround the U-shaped passage, exhaust outlet 13 be located on the bottom surface, baffler rear portion and exhaust outlet towards the place ahead, air intlet 14 is located at downside in the housing rear portion), the waste gas that utilizes the cooling air of motor and discharge at a high speed is the terminal hydrostatic effects that forms in the exhaust hybrid channel, discharge again after making normal temperature air enter the exhaust hybrid channel and high-temp waste gas mixes, effectively reduced temperature of exhaust gas.
Embodiment two:
As shown in Figure 4, move to position D shown in Figure 4 after will being positioned at the relief opening 12 relative discharge directions of baffler 1 front, increase exhaust hybrid channel E, at channel end air intlet F(relief opening 12 is set and is located at housing 11 front end downsides, baffler 1 is located at forward position in the housing, baffler and inner walls surround the U-shaped passage, exhaust outlet 13 is located at baffler rear portion tail end and exhaust outlet towards the below, described air intlet 14 is located at housing rear portion upside), the hydrostatic effects that the waste gas that utilizes the cooling air of motor and discharge at a high speed forms at channel end, discharge again after making normal temperature air enter the exhaust hybrid channel and high-temp waste gas mixes, effectively reduced temperature of exhaust gas.
Embodiment three:
As shown in Figure 5, move to position G shown in Figure 5 after will being positioned at the relief opening 12 relative discharge directions of baffler 1 front, increase exhaust hybrid channel D, at channel end air intlet T(relief opening 12 is set and is located at housing 11 front end downsides, baffler 1 is located at medium position in the housing, baffler and inner walls surround the annular pass, exhaust outlet 13 be located on the end face of baffler rear portion and exhaust outlet towards the place ahead, air intlet 14 is located at housing rear portion upside), the hydrostatic effects that the waste gas that utilizes the cooling air of motor and discharge at a high speed forms at channel end, discharge again after making normal temperature air enter the exhaust hybrid channel and high-temp waste gas mixes, effectively reduced temperature of exhaust gas.
By adjusting the baffler internal structure, exhaust outlet can be set to the position that may need, increase the exhaust hybrid channel, at channel end air intlet is set, the hydrostatic effects that the waste gas that utilizes the cooling air of motor and discharge at a high speed forms at channel end, discharge again after making normal temperature air enter the exhaust hybrid channel and high-temp waste gas mixes, can effectively reduce temperature of exhaust gas.
Structural principle of the present utility model is applicable to all similar machines, has breakthrough important meaning for the emission compliance technology of the hand-held garden instrument take petrol engine as power.
Claims (7)
1. can reduce the catalyst baffler of temperature of exhaust gas, the housing (11) that comprises baffler (1) and encirclement baffler, described baffler is provided with exhaust outlet (13), described housing front end is provided with relief opening (12), it is characterized in that: described exhaust outlet is located at the baffler rear portion, described housing rear portion is provided with air intlet (14), described air intlet is communicated with the cooling air outlet of motor, form exhaust hybrid channel (16) between described exhaust outlet and the air intlet, make the cooling-air (15) of motor enter the exhaust hybrid channel and fully mix afterwards with high-temp waste gas that exhaust outlet is discharged and discharge from relief opening.
2. the catalyst baffler that reduces temperature of exhaust gas according to claim 1, it is characterized in that: described relief opening is located at housing front end downside.
3. the catalyst baffler that reduces temperature of exhaust gas according to claim 2 is characterized in that: described baffler is located at forward position in the housing, and baffler and inner walls surround the U-shaped passage.
4. the catalyst baffler that reduces temperature of exhaust gas according to claim 3 is characterized in that: described exhaust outlet be located on the bottom surface, baffler rear portion and exhaust outlet towards the place ahead, described air intlet is located at downside in the housing rear portion.
5. the catalyst baffler that reduces temperature of exhaust gas according to claim 3 is characterized in that: described exhaust outlet is located at baffler rear portion tail end and exhaust outlet towards the below, and described air intlet is located at housing rear portion upside.
6. the catalyst baffler that reduces temperature of exhaust gas according to claim 2 is characterized in that: described baffler is located at medium position in the housing, and baffler and inner walls surround the annular pass.
7. the catalyst baffler that reduces temperature of exhaust gas according to claim 6 is characterized in that: described exhaust outlet be located on the end face of baffler rear portion and exhaust outlet towards the place ahead, described air intlet is located at housing rear portion upside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250293 CN202690177U (en) | 2012-05-28 | 2012-05-28 | Catalytic muffler capable of reducing temperature of exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250293 CN202690177U (en) | 2012-05-28 | 2012-05-28 | Catalytic muffler capable of reducing temperature of exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690177U true CN202690177U (en) | 2013-01-23 |
Family
ID=47545806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220250293 Expired - Fee Related CN202690177U (en) | 2012-05-28 | 2012-05-28 | Catalytic muffler capable of reducing temperature of exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720568A (en) * | 2012-05-28 | 2012-10-10 | 浙江亚特电器有限公司 | Catalytic silencer capable of reducing temperature of exhaust gas |
| CN103806983A (en) * | 2014-01-23 | 2014-05-21 | 浙江亚特电器有限公司 | Catalyzer silencer |
-
2012
- 2012-05-28 CN CN 201220250293 patent/CN202690177U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720568A (en) * | 2012-05-28 | 2012-10-10 | 浙江亚特电器有限公司 | Catalytic silencer capable of reducing temperature of exhaust gas |
| WO2013177839A1 (en) * | 2012-05-28 | 2013-12-05 | 嘉兴亚特园林机械研究所 | Catalytic muffler capable of reducing temperature of exhaust gas |
| CN103806983A (en) * | 2014-01-23 | 2014-05-21 | 浙江亚特电器有限公司 | Catalyzer silencer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102748169B (en) | Mixing device for vehicle engine exhaust gas recirculation (EGR) | |
| CN202690177U (en) | Catalytic muffler capable of reducing temperature of exhaust gas | |
| CN203476553U (en) | Air inlet manifold structure | |
| CN202628319U (en) | Mixing device for Exhaust Gas Recirculation (EGR) of vehicle engine | |
| CN201581971U (en) | Motorcycle exhaust pipe structure | |
| CN102720568A (en) | Catalytic silencer capable of reducing temperature of exhaust gas | |
| CN203009062U (en) | Cylinder cover integrated with EGR (exhaust gas recirculation) channel | |
| CN102410076B (en) | Turbo-charging system provided with moving part in exhaust pipe | |
| CN203189079U (en) | Triangle rotor engine silencer | |
| CN102444468B (en) | Turbocharging system with moving plate in front of turbine inlet | |
| CN203515741U (en) | Two-stroke gasoline engine silencer | |
| CN205297706U (en) | Engine exhaust apparatus | |
| CN107035463B (en) | Vehicle silencer capable of utilizing waste heat to perform catalytic reaction | |
| CN202431337U (en) | Silencer of 8kW gasoline engine generator | |
| CN203189081U (en) | Rotary exhaust silencer for motorcycle | |
| CN203614188U (en) | Structure assembly of SCR (semiconductor control rectifier) muffler for motor vehicle | |
| CN204691874U (en) | Novel automobile exhaust pipe | |
| CN103670835B (en) | A kind of ultrasound intake duct for petrol engine | |
| CN203463170U (en) | Silencer | |
| CN202718735U (en) | Novel internal silencer | |
| CN201818353U (en) | Silencer for general purpose engine | |
| CN203655393U (en) | Structure assembly of SCR silencer for motor vehicle | |
| CN204225962U (en) | Penetrating type granule capturing post-processor assembly | |
| CN104005827B (en) | Rotational flow exhaust device of automobile | |
| CN202926441U (en) | Silencer capable of reducing exhaust temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140528 |