CN203559999U - Piston structure of car engine - Google Patents
Piston structure of car engine Download PDFInfo
- Publication number
- CN203559999U CN203559999U CN201320764671.6U CN201320764671U CN203559999U CN 203559999 U CN203559999 U CN 203559999U CN 201320764671 U CN201320764671 U CN 201320764671U CN 203559999 U CN203559999 U CN 203559999U
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- CN
- China
- Prior art keywords
- face
- groove
- piston structure
- groove bottom
- car engine
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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.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a piston structure of a car engine. The piston structure comprises a body and a top base which are shaped integrally. The piston structure of the car engine is characterized in that the body comprises an upper end face, the top base comprises a taper-shaped top portion and a groove, the top portion converges upwards from the upper end face of the body gradually, the top portion is provided with a top face, the groove with an open facing upwards recesses downwards from the top face and is defined by a groove bottom face and a groove wall extending from the circumference of the groove bottom face to the top face, the groove bottom face is provided with a protruding portion which protrudes upwards and is shaped in a cone with diameters growing larger upwards gradually from the groove bottom face, and the protruding portion is provided with a conical face. By the aid of the piston structure of the car engine, higher compression pressure can be generated, fuel can be combusted fully, and an atomization effect is improved.
Description
Technical field
The utility model relates to a kind of piston structure, especially a kind of piston structure of car engine.
Background technique
At present the automobile of the overwhelming majority is all the upper and lower reciprocating internal combustion engine of adapted piston, utilizes the piston action of rising and falling up and down, through air inlet, compress, fire, the cyclic process such as exhaust produces power.The piston of known butterfly type, because this piston head has the groove moulding of a depression, be usually used in reducing the oil spout scope in compression ratio, the interior air current flow of auxiliary cylinders or restriction cylinder, but the compression pressure that the minimizing of compression ratio causes decline can affect the output of whole internal-combustion engine power.
Summary of the invention
In order to overcome defect of the prior art, the utility model provides a kind of piston structure of car engine.
The utility model solves the technological scheme that its technical problem adopts: the utility model provides a kind of piston structure of car engine, comprises a body and footstock, and body and footstock are made of one piece, and concrete structure is as follows.
Body comprises a upper-end surface; Footstock comprises the top that is taper that upwards restrain gradually a upper-end surface from body, top has an end face, footstock also comprise one from end face the groove to lower recess, groove opening up, groove is defined and is formed by a groove bottom and a trough wall surface that extends to end face by groove bottom periphery, wherein the groove bottom protuberance that raised up.
In the utility model, it is large diameter coniform by the groove bottom flaring that makes progress that protuberance is, and protuberance has a conical surface.
The beneficial effects of the utility model are: produce higher compression pressure, fuel is able to perfect combustion, improve atomizing effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is design principle figure of the present utility model.
1. bodies in figure, 2. footstock, 3. upper-end surface, 4. top, 5. end face, 6. groove, 7. groove bottom, 8. trough wall surface, 9. protuberance, 10. conical surface.
Embodiment
As shown in Figure 1, the utility model provides a kind of piston structure of car engine, comprises a body 1 and footstock 2, and body 1 and footstock 2 are made of one piece, and concrete structure is as follows.
Body 1 comprises a upper-end surface 3, and body 1 is known configurations, at this, does not just repeat; Footstock 2 comprises a top 4 that is taper of upwards restraining gradually from the upper-end surface 3 of body 1, top 4 has an end face 5, footstock 2 also comprise one from end face 5 groove to lower recess 6, groove 6 opening up, groove 6 is defined and is formed by a groove bottom 7 and a trough wall surface 8 that extends to end face 5 by groove bottom 7 peripheries, wherein groove bottom 7 protuberance 9 that raised up, and this protuberance 9 is that upwards flaring is large diameter coniform by groove bottom 7, and therefore protuberance 9 has a conical surface 10.
Because body 1 upper-end surface 3 forms footstock 2, and footstock 2 has the structural design of top 4 and groove 6 simultaneously, and by top, 4 protrusion moulding can be inserted the bags of engine internal and have high compression ratio, to produce higher compression pressure.In addition, the structural design of groove 6 can't cause the dispersion of the atomized fuel of automobile oil nozzle start generation, but can limit the scope after atomized fuel ejection, is more easily lighted a fire, and allows fuel be able to perfect combustion.And the atomized fuel being generated by automobile oil nozzle start, by this cone shape protuberance 9, can allow the cryptomere front end of atomized fuel clash into after the conical tip of this protuberance 9, impels atomized fuel to be broken into less oil droplet, improve atomizing effect.
Claims (2)
1. a piston structure for car engine, comprises a body and footstock, and body and footstock are made of one piece, and it is characterized in that: body comprises a upper-end surface; Footstock comprises the top that is taper that upwards restrain gradually a upper-end surface from body, top has an end face, footstock also comprise one from end face the groove to lower recess, groove opening up, groove is defined and is formed by a groove bottom and a trough wall surface that extends to end face by groove bottom periphery, wherein the groove bottom protuberance that raised up.
2. the piston structure of car engine according to claim 1, is characterized in that: protuberance is large diameter coniform by the groove bottom flaring that makes progress, and protuberance has a conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764671.6U CN203559999U (en) | 2013-11-29 | 2013-11-29 | Piston structure of car engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764671.6U CN203559999U (en) | 2013-11-29 | 2013-11-29 | Piston structure of car engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559999U true CN203559999U (en) | 2014-04-23 |
Family
ID=50509725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320764671.6U Expired - Fee Related CN203559999U (en) | 2013-11-29 | 2013-11-29 | Piston structure of car engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657042A (en) * | 2019-09-23 | 2020-01-07 | 东华大学 | Energy-saving and weight-reducing structure of engine and manufacturing method thereof |
-
2013
- 2013-11-29 CN CN201320764671.6U patent/CN203559999U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657042A (en) * | 2019-09-23 | 2020-01-07 | 东华大学 | Energy-saving and weight-reducing structure of engine and manufacturing method thereof |
| CN110657042B (en) * | 2019-09-23 | 2022-03-22 | 东华大学 | Energy-saving and weight-reducing structure of engine and manufacturing method thereof |
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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: 20140423 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |