CN2789424Y - Motorycle engine tail gas purifier - Google Patents
Motorycle engine tail gas purifier Download PDFInfo
- Publication number
- CN2789424Y CN2789424Y CN 200520057125 CN200520057125U CN2789424Y CN 2789424 Y CN2789424 Y CN 2789424Y CN 200520057125 CN200520057125 CN 200520057125 CN 200520057125 U CN200520057125 U CN 200520057125U CN 2789424 Y CN2789424 Y CN 2789424Y
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- hole
- tonifying
- head cover
- motorcycle 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
Links
Landscapes
- Exhaust Gas After Treatment (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a motorcycle engine tail gas purifier, which can achieve a secondary air supply effect and can not affect the service life of an air exhaust pipe. The motorcycle engine tail gas purifier comprises a cylinder head, a cylinder head cover and an air exhaust valve. The utility model is characterized in that an air supply hole is arranged on one end of an air exhaust hole adjacent to an air exhaust door in an air exhaust passage of the cylinder head, and the air supply hole is led to the junction surface of the cylinder head and the cylinder head cover; the air supply hole is communicated with an air ventilating hole which is connected with a control valve through a guide pipe or directly connected with the control valve.
Description
Technical field
The utility model relates to a kind of motorcycle engine exhaust gas cleaner.
Background technique
For making motorcycle engine tail gas reach GB14622-2002 standard (being Europe II), prior art adopts outlet pipe front end secondary air compensating combustion method usually, promptly drive a tonifying Qi hole and tonifying Qi conduit near the exhaust pipe end, make a large amount of carbon monoxide and hydrocarbon become harmless carbon dioxide and water discharging at the cylinder head exhaust port.But combustion temperature is too high once more owing to tail gas, and during the engine long time service, this kind secondary air compensating path can cause outlet pipe aging, promptly can't allow the durable use of outlet pipe.
Summary of the invention
The purpose of this utility model provides and a kind ofly can reach the secondary air compensating effect, can not influence the outlet pipe motorcycle engine exhaust gas cleaner in working life again.
Technological scheme
The purpose of this utility model is achieved in that a kind of motorcycle engine exhaust gas cleaner, comprise cylinder head and cylinder head cover, exhaust valve, its special way is: near the exhaust valve end one tonifying Qi hole is arranged in the cylinder head air outlet flue, the tonifying Qi hole communicates with vent on being positioned at cylinder head cover, and the other end of vent directly is connected with control valve.
Its special way is: fill a convex platform at the mating face of cylinder head and cylinder head cover end along tonifying Qi hole direction, it is concordant that raised head face engages face.
Its special way is: cylinder head cover offer with cylinder head on the corresponding vent in tonifying Qi hole, on cylinder head cover, one lower convex platform is arranged towards the tonifying Qi hole direction corresponding with above-mentioned convex platform, it is concordant that raised head face engages face.
Its special way is: vent is connected with control valve by an air pipe.
Beneficial effect:
Owing to adopted technological scheme described in the utility model: in the air outlet flue in cylinder body, mixing with the imperfect combustion tail gas that from the firing chamber, discharges near exhaust valve position from secondary air compensating hole leaked-in air, burning once more in high temperature, the heat major part that burning is distributed is absorbed by cylinder body, remaining fraction heat distributes through outlet pipe again, thereby avoided outlet pipe Yin Wendu too high and premature aging has guaranteed its working life.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structure cut-away view of the present utility model.
Embodiment:
As can be seen from Fig. 1, described motorcycle engine exhaust gas cleaner, be provided with exhaust port 111 in the cylinder head 11, at close exhaust valve 112 ends, offer a tonifying Qi hole 113, tonifying Qi hole 113 directions are led to the mating face 114 of cylinder head 11 and cylinder head cover 12, are filling convex platform 115 by mating face 114 ends along tonifying Qi hole 113 directions, and convex platform 115 end faces are concordant with mating face 114; Cylinder head cover 12 offers the vent 121 corresponding with tonifying Qi hole on the cylinder head 11, sets up lower convex platform 122 towards tonifying Qi hole 113 directions corresponding with above-mentioned convex platform 115 on cylinder head cover 12, and lower convex platform 122 end faces are concordant with mating face 114.
The utility model motorcycle tail gas cleaning device, vent 121 can directly connect with a control valve, also can connect (air pipe, control valve not shown) with control valve by an air pipe, and control valve is a technique known.
Claims (4)
1, a kind of motorcycle engine exhaust gas cleaner, comprise cylinder head and cylinder head cover, exhaust valve is characterized in that: near the exhaust valve end one tonifying Qi hole is arranged in the cylinder head air outlet flue, the tonifying Qi hole communicates with vent on being positioned at cylinder head cover, and the other end of vent directly is connected with control valve.
2, according to the described motorcycle engine exhaust gas cleaner of claim 1, it is characterized in that: fill a convex platform at the mating face of cylinder head and cylinder head cover end along tonifying Qi hole direction, it is concordant that raised head face engages face.
3, according to the described motorcycle engine exhaust gas cleaner of claim 2, it is characterized in that: cylinder head cover offer with cylinder head on the corresponding vent in tonifying Qi hole, towards the tonifying Qi hole direction corresponding with above-mentioned convex platform one lower convex platform is arranged on cylinder head cover, it is concordant that raised head face engages face.
4, according to the described motorcycle engine exhaust gas cleaner of claim 1, it is characterized in that: vent is connected with control valve by an air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057125 CN2789424Y (en) | 2005-04-18 | 2005-04-18 | Motorycle engine tail gas purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057125 CN2789424Y (en) | 2005-04-18 | 2005-04-18 | Motorycle engine tail gas purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789424Y true CN2789424Y (en) | 2006-06-21 |
Family
ID=36789755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057125 Expired - Fee Related CN2789424Y (en) | 2005-04-18 | 2005-04-18 | Motorycle engine tail gas purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789424Y (en) |
-
2005
- 2005-04-18 CN CN 200520057125 patent/CN2789424Y/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: 20060621 Termination date: 20100418 |