CN204877699U - Squish face combustion chamber top land structure - Google Patents
Squish face combustion chamber top land structure Download PDFInfo
- Publication number
- CN204877699U CN204877699U CN201520441741.3U CN201520441741U CN204877699U CN 204877699 U CN204877699 U CN 204877699U CN 201520441741 U CN201520441741 U CN 201520441741U CN 204877699 U CN204877699 U CN 204877699U
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- CN
- China
- Prior art keywords
- piston
- combustion chamber
- cylinder cap
- utility
- model
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000000567 combustion gas Substances 0.000 description 3
- 101150054854 POU1F1 gene Proteins 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model provides a squish face combustion chamber top land structure, the problem that solve is that simple flat top formula top land can't satisfy economic nature of internal -combustion engine and dynamic property index, the utility model provides a top land is provided with the valve and keeps away valve hole, and the valve is kept away valve hole and piston edge and is provided with the recess, and the top surface of piston and the distance between the cylinder cap face set up to at 0.4-0.69mm, the piston -top surface diameter is greater than 0.5-1.5mm of cylinder cap face diameter. The utility model has the advantages that this piston combustion chamber can directly cast the shaping, reduces the processing cost. More important is the squish of accomplishing in the combustion chamber piston and cylinder cap, forms the turbulent flow, improves the mixability of gas and air, finally reduces the knockings, improves engine power nature and economic nature.
Description
Technical field
The utility model belongs to field of internal combustion engine, is specifically related to one and realizes combustion gas Thorough combustion, reduces the risk of pinking, provides the squish face piston of combustion chamber top structure of superior performance.
Background technique
At present in the machinery industry such as automobile making, internal-combustion engine, in combustion chambers of internal combustion engines, piston mainly completes thermal energy to dynamic transformation of energy.Simple flat roof type piston head cannot meet internal-combustion engine kinetic and economic indexes.
Summary of the invention
The purpose of this utility model is to provide one and realizes combustion gas Thorough combustion, reduces the risk of pinking, provides the squish face piston of combustion chamber top structure of superior performance.
The purpose of this utility model is achieved in that it comprises: piston, it is characterized in that: piston head is provided with valve valve pit, and valve valve pit and piston ridge place are provided with groove, and the distance between the end face of piston and cylinder cap face is set at 0.4 ~ 0.69mm; Piston-top surface diameter is greater than cylinder cap face diameter 0.5 ~ 1.5mm.
The utility model has the advantages that: this piston combustion bowl can direct casting, reduces processing cost.More importantly complete the squish of piston and cylinder cap in firing chamber, form turbulent flow, improve the mixability of combustion gas and air, finally reduce pinking, improve engine power performance and Economy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view of Fig. 1.
The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example is only the utility model example wherein; do not represent the right protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claims.
Embodiment
example 1
Piston head is provided with valve valve pit 1, and valve valve pit and piston ridge place are provided with groove 2, and the distance between the end face 3 of piston and cylinder cap face 4 is set at 0.4 ~ 0.69mm; Piston-top surface diameter is greater than cylinder cap face diameter 0.5 ~ 1.5mm.
Meeting the intensity of valve valve pit, making itself and piston ridge through.Meeting piston top thickness intensity and ensureing, on the basis of piston combustion bowl constancy of volume, to reduce the distance of cylinder cap face and piston-top surface, between 0.4-0.69mm.The width of piston-top surface is greater than the width in cylinder cap face at 1-3mm, reduces piston combustion bowl bore, increases the overlapping area of piston and cylinder cap, completes squish, forms turbulent flow.
Claims (1)
1. a squish face piston of combustion chamber top structure, it comprises: piston, it is characterized in that: piston head is provided with valve valve pit, valve valve pit and piston ridge place are provided with groove, and the distance between the end face of piston and cylinder cap face is set at 0.4 ~ 0.69mm; Piston-top surface diameter is greater than cylinder cap face diameter 0.5 ~ 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520441741.3U CN204877699U (en) | 2015-06-25 | 2015-06-25 | Squish face combustion chamber top land structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520441741.3U CN204877699U (en) | 2015-06-25 | 2015-06-25 | Squish face combustion chamber top land structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877699U true CN204877699U (en) | 2015-12-16 |
Family
ID=54822081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520441741.3U Expired - Fee Related CN204877699U (en) | 2015-06-25 | 2015-06-25 | Squish face combustion chamber top land structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877699U (en) |
-
2015
- 2015-06-25 CN CN201520441741.3U patent/CN204877699U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 |