CN202970927U - Air cylinder body of motorcycle engine - Google Patents
Air cylinder body of motorcycle engine Download PDFInfo
- Publication number
- CN202970927U CN202970927U CN 201220723749 CN201220723749U CN202970927U CN 202970927 U CN202970927 U CN 202970927U CN 201220723749 CN201220723749 CN 201220723749 CN 201220723749 U CN201220723749 U CN 201220723749U CN 202970927 U CN202970927 U CN 202970927U
- Authority
- CN
- China
- Prior art keywords
- cylinder sleeve
- motorcycle engine
- cylinder body
- casting
- air cylinder
- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an air cylinder body of a motorcycle engine. The air cylinder body of the motorcycle engine comprises a cylinder sleeve (1) and an aluminum casting body (2), and an oil-injecting avoiding notch (3) is arranged at a position, close to the lower end of a right bent shaft box body, of the cylinder sleeve (1). The air cylinder body of the motorcycle engine can keep off an injecting path of an oil injection mouth, ensures that lubricated oil injected by the oil injection mouth can be directly injected on the back portion of a piston, and achieves cooling and lubricating effects, and therefore working time of the piston can be prolonged and service life of a complete machine of the engine can be prolonged. In addition, the cylinder sleeve and the aluminum casting body are enabled to be combined more tightly, and reliability and dynamic property of the engine can be effectively improved.
Description
Technical field
The utility model relates to a kind of cylinder block, particularly relates to a kind of cylinder block for motorcycle engine.
Background technique
Motorcycle engine cylinder body comprises cylinder sleeve and is arranged on the outer aluminium body of casting of cylinder sleeve.At the lower end of right crankcase, cylinder sleeve extends to right crankcase, so cylinder sleeve will stop that oil nozzle sprays to the jet path of the lubricant oil at piston back, thereby affects lubrication effect.On the other hand, in engine working process, piston and piston ring are done to-and-fro motion at a high speed in cylinder sleeve, although oil lubrication is arranged, but will produce larger frictional force between cylinder sleeve and piston, this frictional force will make cylinder sleeve and the aluminium body of casting produce the trend of relative movement, if the combination force between cylinder sleeve and the aluminium body of casting is large not, cylinder sleeve be separated with the aluminium body of casting.
Therefore those skilled in the art are devoted to develop a kind of cylinder block that can make the direct lube pistons of oil nozzle back.
The model utility content
Because the defects of prior art, technical problem to be solved in the utility model is to provide a kind of cylinder block that can make the direct lube pistons of oil nozzle back.
For achieving the above object, the utility model provides a kind of motorcycle engine cylinder body, comprises cylinder sleeve and the aluminium body of casting, and described cylinder sleeve is provided with oil spout near the right crankcase lower end and dodges breach.
Better, it is arc notch that breach is dodged in described oil spout.
Better, the arc size height 3～10mm of described arc notch, width 10～25mm.
For strengthening the combination force between cylinder sleeve and the aluminium body of casting, the junction plane indentation of described cylinder sleeve and the described aluminium body of casting.
Better, the maximum diameter of described cylinder sleeve and described aluminium body of casting junction is 80 ± 2mm, and minimum diameter is 78 ± 2mm.
For improving the power character of motor, the internal diameter of described cylinder sleeve is 69 ± 2mm; Described cylinder sleeve evagination is 75 ± 2mm in the external diameter of the described aluminium body of casting.
The beneficial effects of the utility model are: the utility model can get out of the way the oil nozzle jet path, guarantee that lubricant oil that oil nozzle ejects can be directly injected to the piston back, reach cooling, lubricated effect, thereby can extend the operating time of piston, promote the motor machine life; And can make the tightr of combination between cylinder sleeve and the aluminium body of casting, and can effectively improve reliability and the power character of motor.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, a kind of motorcycle engine cylinder body comprises cylinder sleeve 1 and the aluminium body of casting 2, and cylinder sleeve 1 is provided with the arc oil spout near the right crankcase lower end and dodges breach 3, the arc size height 3～10mm of arc notch, width 10～25mm.
The junction plane indentation of cylinder sleeve 1 and the aluminium body of casting 2.Cylinder sleeve 1 is 80 ± 2mm with the maximum diameter φ 1 of the aluminium body of casting 2 junctions, and minimum diameter φ 2 is 78 ± 2mm.
The internal diameter φ 3 of cylinder sleeve 1 is 69 ± 2mm; Cylinder sleeve 1 evagination is 75 ± 2mm in the external diameter φ 4 of the aluminium body of casting 2.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (6)
1. a motorcycle engine cylinder body, comprise cylinder sleeve (1) and the aluminium body of casting (2), it is characterized in that: described cylinder sleeve (1) is provided with oil spout near the right crankcase lower end and dodges breach (3).
2. motorcycle engine cylinder body as claimed in claim 1, it is characterized in that: it is arc notch that breach (3) is dodged in described oil spout.
3. motorcycle engine cylinder body as claimed in claim 2, is characterized in that: the crown height 3～10mm of described arc notch, width 10～25mm.
4. as claim 1 or 2 or 3 described motorcycle engine cylinder bodies, it is characterized in that: the junction plane indentation of described cylinder sleeve (1) and the described aluminium body of casting (2).
5. motorcycle engine cylinder body as claimed in claim 4 is characterized in that: described cylinder sleeve (1) is 80 ± 2mm with the maximum diameter (φ 1) of the described aluminium body of casting (2) junction, and minimum diameter (φ 2) is 78 ± 2mm.
6. motorcycle engine cylinder body as claimed in claim 5, it is characterized in that: the internal diameter of described cylinder sleeve (1) (φ 3) is 69 ± 2mm; Described cylinder sleeve (1) evagination is 75 ± 2mm in the external diameter (φ 4) of the described aluminium body of casting (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723749 CN202970927U (en) | 2012-12-25 | 2012-12-25 | Air cylinder body of motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723749 CN202970927U (en) | 2012-12-25 | 2012-12-25 | Air cylinder body of motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970927U true CN202970927U (en) | 2013-06-05 |
Family
ID=48512012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220723749 Expired - Fee Related CN202970927U (en) | 2012-12-25 | 2012-12-25 | Air cylinder body of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970927U (en) |
-
2012
- 2012-12-25 CN CN 201220723749 patent/CN202970927U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20171225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |