CN2890365Y - Exhaust silencer with catalyst - Google Patents
Exhaust silencer with catalyst Download PDFInfo
- Publication number
- CN2890365Y CN2890365Y CN 200620109875 CN200620109875U CN2890365Y CN 2890365 Y CN2890365 Y CN 2890365Y CN 200620109875 CN200620109875 CN 200620109875 CN 200620109875 U CN200620109875 U CN 200620109875U CN 2890365 Y CN2890365 Y CN 2890365Y
- Authority
- CN
- China
- Prior art keywords
- outlet pipe
- catalyst
- silencing apparatus
- exhaust
- silencer
- 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 Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The utility model relates to an exhaust silencer with catalyst comprising a silencer and an exhaust pipe connected with the silencer. A catalyst is arranged in the exhaust silencer. The silencer and the exhaust pipe are mutually lapped, and the lap part is tightly hooped and fixed by a holt hoop iron. The catalysts are respectively arranged in the exhaust silencer at the lap part of the silencer and the exhaust pipe and in the connecting end of the exhaust pipe and the engine exhaust outlet. A flange plate is covered on the connecting part of the exhaust pipe and the engine exhaust outlet, and a retaining ring is also arranged. The exhaust silencer can make the engine waste gas passing through get more effective purification treatment, so as to improve motorcycle engine exhaust emission quality and make the demolition and replacement of the catalyst simple, convenient and reliable.
Description
Technical field
The utility model relates to a kind of exhaust silencer with catalyst.
Technical background
Exhaust muffler for motorcycle is the device that is used to handle the motorcycle engine toxic emission, to reduce noise and the toxic emission pollution on the environment that motor produces.Exhaust silencer is formed by connecting by outlet pipe and silencing apparatus, and in outlet pipe or silencing apparatus catalyst is installed.Catalyst is that the centre is cellular cylindrical body, is used for the purifying engine exhaust gas discharged, and it just can play good waste-gas cleaning effect in the time of must reaching uniform temperature at the waste gas of engine emission, and its catharsis reduces on the contrary when exhaust gas temperature is too high.
The catalyst of installing in the existing exhaust muffler for motorcycle or be installed in the outlet pipe, or be installed in the interior pipe of silencing apparatus.Be installed in the exhaust silencer in the pipe in the silencing apparatus for catalyst, because catalyst is far away apart from engine exhaust port, start working the stage at motor, the temperature of silencing apparatus position, catalyst place waste gas can not be increased to rapidly catalyst can proper functioning temperature, make catalyst carry out effective purified treatment, thereby make this exhaust silencer relatively poor in the start working exhaust emission quality in stage of motor to the waste gas that motor is discharged.Be installed in exhaust silencer in the outlet pipe for catalyst, because catalyst is nearer apart from engine exhaust port, start working the stage at motor, the temperature of outlet pipe position, catalyst place waste gas is higher, so can make catalyst get started the effect of purifying exhaust air, and not have the expense gas discharging of a time period without effective purified treatment.But, along with the work of motor long period, outlet pipe position, catalyst place exhaust gas temperature is too high, will cause the waste-gas cleaning ability of catalyst to reduce, the waste gas that motor is discharged can not get effective purified treatment, so the exhaust emission quality of this exhaust silencer is also relatively poor.
In the motorcycle using process, because working life that is far longer than catalyst working life of exhaust silencer, so often when exhaust silencer still can normally use, catalyst has been scrapped and can not normally have been used.Because existing exhaust silencer catalyst installed position tube and tube (outlet pipe and outlet pipe, or outlet pipe and silencing apparatus) between be to be connected as a single entity by welding, so the catalyst scrapped can not take out in the exhaust silencer and change, like this, owing to causing whole exhaust silencer, scrapping of catalyst scrap, and this moment, silencing apparatus did not also reach working life far away, so the structure of existing exhaust silencer has caused the significant wastage of resource.
The model utility content
Technical problem to be solved in the utility model provides a kind of exhaust silencer with catalyst, makes the engine exhaust through its discharge can access more efficiently purified treatment, to promote the exhaust emission quality of motorcycle engine; Make retracting of catalyst in it change simple and convenient and install reliable simultaneously.
The exhaust silencer of band catalyst described in the utility model, comprise silencing apparatus and the outlet pipe that is connected with silencing apparatus, catalyst is installed in exhaust silencer, silencing apparatus and outlet pipe overlap mutually, and fix with the anchor ear banding in lap-joint, described catalyst is installed in respectively in the exhaust silencer of silencing apparatus and outlet pipe lap-joint and in outlet pipe and the engine exhaust port connecting end; Outlet pipe and engine exhaust port connecting end are set with flange plate, and are provided with back-up ring, and back-up ring can stop that this flange plate breaks away from outlet pipe from this port of outlet pipe.
In the connecting end of outlet pipe and silencing apparatus, be welded with baffle ring, connecting end at silencing apparatus and outlet pipe is provided with a necking segment, catalyst in the described exhaust silencer that is installed in silencing apparatus and outlet pipe lap-joint between this necking segment and baffle ring, thereby realize that the installation of catalyst in exhaust silencer is spacing.Be provided with seal ring between the outlet pipe of outlet pipe and silencing apparatus lap-joint and the silencing apparatus.
Bond end at silencing apparatus and outlet pipe offers groove, and this groove is communicated with the port of this end of silencing apparatus, and this groove helps silencing apparatus and is connected with the banding of outlet pipe under the anchor ear effect, makes silencing apparatus more reliable with being connected of outlet pipe.
Be provided with step in outlet pipe and the engine exhaust port connecting end, be installed in catalyst one end and the conflict of this step in this port, when outlet pipe with after engine exhaust port is connected, can realize that the installation of catalyst in outlet pipe is spacing.
The utility model is in outlet pipe and engine exhaust port connecting end, in silencing apparatus and outlet pipe lap-joint, catalyst is installed all with exhaust silencer, start working the stage at motor, because the catalyst that is installed in outlet pipe and the engine exhaust port connecting end is nearer apart from engine exhaust port, the waste gas that motor is discharged is higher in the temperature at this catalyst place, thereby makes this catalyst can carry out effective purified treatment to waste gas at the engine start initial stage; And in engine operation after a period of time, when catalyst place exhaust gas temperature in outlet pipe and the engine exhaust port connecting end too high and when causing this catalyst that the waste-gas cleaning Processing capacity is reduced, the temperature that is installed in catalyst place waste gas in silencing apparatus and the outlet pipe lap-joint raises, thereby makes the catalyst at this place carry out effective purified treatment to waste gas.So the utility model exhaust silencer begins to start in the entire work process that finishes to operation at motor, all can carry out effective purified treatment, thereby make the exhaust emission quality of motorcycle engine be able to further lifting with this kind exhaust silencer to the waste gas that motor is discharged.
For small-displacement engine of motorcycle, because the big displacement motorcycle engine exhaust gas discharged temperature of its exhaust gas discharged temperature is low, so the mounting point of catalyst should be near apart from engine exhaust port as far as possible in the outlet pipe, so just can make the catalyst in the outlet pipe can play effective waste-gas cleaning effect at the engine start initial stage, so catalyst is installed in outlet pipe and place, engine exhaust port connecting port, is more suitable for the motorcycle engine in little discharge capacity.
Because outlet pipe was realized with being connected by anchor ear of silencing apparatus, made outlet pipe and silencing apparatus be easy to dismounting, thereby was convenient to the dismounting and change of catalyst in silencing apparatus and the outlet pipe lap-joint; Equally, catalyst is installed in outlet pipe and the engine exhaust port connecting end, also is convenient to the dismounting and change of catalyst in the outlet pipe.When catalyst is scrapped, only need to change catalyst, exhaust silencer still can continue to use, so can not cause the waste of resource.
The seal ring that is provided with between the outlet pipe of outlet pipe and silencing apparatus lap-joint and the silencing apparatus can prevent that the waste gas in the exhaust silencer from scurrying out from silencing apparatus and outlet pipe lap-joint, has guaranteed the reliability of silencing apparatus and outlet pipe lap-joint sealing.
The groove of offering at the bond end of silencing apparatus and outlet pipe, be subjected to radial force at the silencing apparatus port and do the time spent, can make the silencing apparatus port to radially shrinking, under the anchor ear effect, be connected, make silencing apparatus more reliable with being connected of outlet pipe with the banding of outlet pipe so this groove helps silencing apparatus.
Catalyst is in the port of outlet pipe and engine exhaust port connecting end, and the one end is spacing with the step in the outlet pipe port, with after motor is connected, promptly can realize the reliable installation of catalyst in outlet pipe at outlet pipe; And, be installed between the baffle ring of catalyst in silencing apparatus necking segment and outlet pipe port in the exhaust silencer of silencing apparatus and outlet pipe lap-joint, can realize that equally the installation of catalyst in exhaust silencer is spacing.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1 looks schematic representation for the master of the exhaust silencer of band catalyst described in the utility model;
Fig. 2 is the partial enlarged drawing at M place among Fig. 1;
Fig. 3 is the partial enlarged drawing at N place among Fig. 1.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the exhaust silencer of this band catalyst comprises silencing apparatus 2 and the outlet pipe 9 that is connected with silencing apparatus 2, silencing apparatus 2 overlaps mutually with outlet pipe 9, be provided with seal ring 3 between the outlet pipe 9 of lap-joint and the silencing apparatus 2, bond end at silencing apparatus 2 and outlet pipe 9 offers groove 8, this groove 8 is communicated with the port of silencing apparatus 2 these ends, fixes by anchor ear 5 bandings with bolt 4 in lap-joint, thereby realizes being connected of silencing apparatus 2 and outlet pipe 9.
Be welded with baffle ring 7 in the connecting end of outlet pipe 9 and silencing apparatus 2, be provided with a necking segment 1 at the connecting end of silencing apparatus 2 and outlet pipe 9, the diameter of this necking segment 1 is littler than the silencing apparatus diameter of its both sides on the silencing apparatus 2.In the exhaust silencer of silencing apparatus 2 and outlet pipe 9 lap-joints a catalyst 6 is installed, this catalyst 6 move axially along exhaust silencer with restriction catalyst 6, thereby the installation of realization catalyst 6 in exhaust silencer is spacing between described necking segment 1 and baffle ring 7.
The also available baffle ring that is welded in outlet pipe 9 ports of the step 11 that is provided with in outlet pipe 9 ports replaces.
Claims (4)
1, the exhaust silencer of band catalyst, comprise silencing apparatus (2) and the outlet pipe (9) that is connected with silencing apparatus, catalyst (6,10) is installed in exhaust silencer, it is characterized in that: silencing apparatus and outlet pipe overlap mutually, and fix with anchor ear (5) banding in lap-joint, described catalyst is installed in respectively in the exhaust silencer of silencing apparatus and outlet pipe lap-joint and in outlet pipe and the engine exhaust port connecting end; Outlet pipe and engine exhaust port connecting end are set with flange plate (13), and are provided with back-up ring (12), and back-up ring can stop that this flange plate breaks away from outlet pipe from this port of outlet pipe.
2, the exhaust silencer of band catalyst according to claim 1, it is characterized in that: in the connecting end of outlet pipe (9) and silencing apparatus (2), be welded with baffle ring (7), connecting end at silencing apparatus (2) and outlet pipe (9) is provided with a necking segment (1), catalyst (6) in the described exhaust silencer that is installed in silencing apparatus and outlet pipe lap-joint is provided with seal ring (3) between the outlet pipe of outlet pipe and silencing apparatus lap-joint and the silencing apparatus between this necking segment and baffle ring.
3, the exhaust silencer of band catalyst according to claim 1 and 2 is characterized in that: the bond end at silencing apparatus (2) and outlet pipe (9) offers groove (8), and this groove is communicated with the port of this end of silencing apparatus (2).
4, the exhaust silencer of band catalyst according to claim 1 is characterized in that: be provided with step (11) in outlet pipe (9) and the engine exhaust port connecting end, catalyst (10) one ends and this step that are installed in this port are conflicted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109875 CN2890365Y (en) | 2006-01-25 | 2006-01-25 | Exhaust silencer with catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109875 CN2890365Y (en) | 2006-01-25 | 2006-01-25 | Exhaust silencer with catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890365Y true CN2890365Y (en) | 2007-04-18 |
Family
ID=38021024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620109875 Expired - Fee Related CN2890365Y (en) | 2006-01-25 | 2006-01-25 | Exhaust silencer with catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890365Y (en) |
-
2006
- 2006-01-25 CN CN 200620109875 patent/CN2890365Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20120125 |