CN204283645U - Cylinder head - Google Patents
Cylinder head Download PDFInfo
- Publication number
- CN204283645U CN204283645U CN201420650149.XU CN201420650149U CN204283645U CN 204283645 U CN204283645 U CN 204283645U CN 201420650149 U CN201420650149 U CN 201420650149U CN 204283645 U CN204283645 U CN 204283645U
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- CN
- China
- Prior art keywords
- cylinder head
- top board
- air inlet
- hole
- lubricating oil
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- 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.)
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of cylinder head, comprise cylinder head top board, cylinder head bottom surface, cylinder head front end, described cylinder head top board central position is provided with oil injector hole, described cylinder head has exhaust side and air inlet side, described exhaust side is provided with push-rod hole, and described air inlet side is provided with independently lubricating oil return hole; One end, described lubricating oil return hole passes to cylinder head top board, and the other end passes to cylinder head bottom surface; Described cylinder head top board formed stepwise, the top plate portion around described push-rod hole is higher than other parts.The utility model improves the intensity of cylinder head well, avoid the phenomenon that cylinder head ftractures under heat load, and effectively organize more lubricant oil to get back to crankcase by air inlet side lubricating oil return hole, effectively reduce the heating of exhaust side high temperature to lubricant oil.
Description
Technical field
The utility model relates to technical field of engines, especially a kind of cylinder head.
Background technique
The cylinder head of current multi-cylinder engine is flat, top board is not provided with separately lubricating oil return passage, the multifarious push-rod hole by exhaust side of lubricant oil above top board gets back to crankcase, and this just brings problem, because the push-rod hole temperature of exhaust side is very high, can by high-temperature heating when lubricant oil flows through, lubricating oil temperature rises, and accelerate oil ageing, such flat board easily easily produces cracking under heat load, movable members wearing and tearing are accelerated, and working life reduces.
Usually can add muscle in the place of cracking again for solving cracking, such muscle is arranged in water jacket and produces adverse influence to current, and such muscle can not tackle the problem at its root.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provides a kind of cylinder head, effectively solves the defect that existing cylinder cap exists.Reduce the temperature of lubricant oil, improve intensity and the performance of cylinder cap, cost-saving, compact attractive in appearance.
The utility model solves the technological scheme that its technical problem adopts: a kind of cylinder head, comprise cylinder head top board, cylinder head bottom surface, cylinder head front end, described cylinder head top board central position is provided with oil injector hole, described cylinder head has exhaust side and air inlet side, described exhaust side is provided with push-rod hole, and described air inlet side is provided with independently lubricating oil return hole; One end, described lubricating oil return hole passes to cylinder head top board, and the other end passes to cylinder head bottom surface; Described cylinder head top board formed stepwise, the top plate portion around described push-rod hole is higher than other parts.This kind of structure improves the intensity of cylinder head well, avoid the phenomenon that cylinder head ftractures under heat load, and effectively organize more lubricant oil to get back to crankcase by air inlet side lubricating oil return hole, effectively reduce the heating of exhaust side high temperature to lubricant oil.
Further, described lubricating oil return hole wall has at least a part to be connected with described air inlet sidewall, effectively avoids the impact of high temperature on lubricant oil.
Further, circular arc smooth transition sentenced by described cylinder head top board step.
Further, integrated short circle chamber, described cylinder head front end, one end, described short circle chamber is connected with the thermostat casing being set in described cylinder head front end, the other end is connected with cylinder head bottom surface, and such layout reaches highly integrated effect, brings conveniently to the layout of other pipelines, improve reliability, reduce cost, outward appearance is compacter, attractive in appearance.
Further, described cylinder head air inlet side is provided with return flow oil road, and one end, described return flow oil road passes to described cylinder head front end, and the other end connects a return tube.This structure manufactures simple, decreases the oil duct of the complexity in cylinder head and coordinates requirement, reducing the height of cylinder head, saved cost.
The beneficial effects of the utility model are: a kind of engine cylinder cap that the utility model improves, and effectively reduce the temperature of lubricant oil, improve intensity and the performance of cylinder head, saved cost, compact appearance is attractive in appearance.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is plan view of the present utility model;
Fig. 2 is the A-A direction view of Fig. 1;
Fig. 3 is the B-B direction view of Fig. 1;
Fig. 4 is the C-C direction view of Fig. 1;
Wherein, 1, cylinder head top board; 2, cylinder head bottom surface; 3, cylinder head front end; 4, exhaust side; 5, air inlet side; 6, oil injector hole; 7, push-rod hole; 8, lubricating oil return hole; 9, step; 10, short circle chamber; 11, return flow oil road.
Embodiment
By reference to the accompanying drawings the utility model is further described now.These accompanying drawings only illustrate basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of cylinder head as depicted in figs. 1 and 2, comprise cylinder head top board 1, cylinder head bottom surface 2, cylinder head front end 3, described cylinder head top board 1 central position is provided with oil injector hole 6, described cylinder head has exhaust side 4 and air inlet side 5, described exhaust side 4 is provided with push-rod hole 7, and described air inlet side 5 is provided with independently lubricating oil return hole 8; One end, described lubricating oil return hole 8 passes to cylinder head top board 1, and the other end passes to cylinder head bottom surface 2; Described cylinder head top board 1 formed stepwise 9, the top plate portion around described push-rod hole 7 is higher than other parts.This kind of structure improves the intensity of cylinder head well, avoid the phenomenon that cylinder head ftractures under heat load, and effectively organize more lubricant oil to get back to crankcase by air inlet side 5 lubricating oil return hole, effectively reduce exhaust side 4 high temperature to the heating of lubricant oil.Described lubricating oil return hole 8 wall has at least a part to be connected with described air inlet side 5 wall, effectively avoids the impact of high temperature on lubricant oil.
As described in Figure 3, integrated short circle chamber 10, described cylinder head front end 3, one end, described short circle chamber 9 is connected with the thermostat casing (not shown in FIG.) being set in described cylinder head front end 3, the other end is connected with cylinder head bottom surface 2, and such layout reaches highly integrated effect, brings conveniently to the layout of other pipelines, improve reliability, reduce cost, outward appearance is compacter, attractive in appearance.
As shown in Figure 4, described cylinder intake side 5 is provided with return flow oil road 11, and one end, described return flow oil road 10 passes to described cylinder head front end 3, and the other end connects a return tube (not shown in FIG.).This structure manufactures simple, decreases the oil duct of the complexity in cylinder head and coordinates requirement, reducing the height of cylinder head, saved cost.
Above-mentioned mode of execution is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. a cylinder head, comprise cylinder head top board, cylinder head bottom surface, cylinder head front end, described cylinder head top board central position is provided with oil injector hole, and described cylinder head has exhaust side and air inlet side, described exhaust side is provided with push-rod hole, and described air inlet side is provided with independently lubricating oil return hole; One end, described lubricating oil return hole passes to cylinder head top board, and the other end passes to cylinder head bottom surface; Described cylinder head top board formed stepwise, the top plate portion around described push-rod hole is higher than other parts.
2. a kind of cylinder head according to claim 1, is characterized in that, described lubricating oil return hole wall has at least a part to be connected with described air inlet sidewall.
3. a kind of cylinder head according to claim 1, is characterized in that, circular arc smooth transition sentenced by described cylinder head top board step.
4. a kind of cylinder head according to claim 1, is characterized in that, integrated short circle chamber, described cylinder head front end, and one end, described short circle chamber is connected with the thermostat casing being set in described cylinder head front end, and the other end is connected with cylinder head bottom surface.
5. a kind of cylinder head according to claim 1, is characterized in that, described cylinder head air inlet side is provided with return flow oil road, and one end, described return flow oil road passes to described cylinder head front end, and the other end connects a return tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650149.XU CN204283645U (en) | 2014-11-03 | 2014-11-03 | Cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650149.XU CN204283645U (en) | 2014-11-03 | 2014-11-03 | Cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283645U true CN204283645U (en) | 2015-04-22 |
Family
ID=52866812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420650149.XU Active CN204283645U (en) | 2014-11-03 | 2014-11-03 | Cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329180A (en) * | 2014-11-03 | 2015-02-04 | 常州常发动力机械有限公司 | Air cylinder cover |
-
2014
- 2014-11-03 CN CN201420650149.XU patent/CN204283645U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329180A (en) * | 2014-11-03 | 2015-02-04 | 常州常发动力机械有限公司 | Air cylinder cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160106 Address after: 213176 Chang FA Industrial Park, Wujin Road, Wujin District, Jiangsu, Changzhou Patentee after: Jiangsu Changfa Agricultural Equipment Co., Ltd. Address before: 213176 Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: Changfa Power Machinery Co., Ltd., Changzhou City |