CN204082360U - A kind of novel gas machine piston top - Google Patents
A kind of novel gas machine piston top Download PDFInfo
- Publication number
- CN204082360U CN204082360U CN201420496144.6U CN201420496144U CN204082360U CN 204082360 U CN204082360 U CN 204082360U CN 201420496144 U CN201420496144 U CN 201420496144U CN 204082360 U CN204082360 U CN 204082360U
- Authority
- CN
- China
- Prior art keywords
- piston top
- cavity
- ring supporting
- supporting surface
- cooling chamber
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a kind of novel gas machine piston top, comprise columniform piston top body, the sidewall of piston top body is distributed with annular groove, the upper-end surface of piston top body concaves formation first cavity, the lower end surface of piston only concaves formation second cavity, the outer rim of the second cavity continues the formation cooling chamber that concaves, cooling chamber is by the inner ring supporting surface connected successively, junction surface, upper bottom surface and outer ring supporting surface are formed, inner ring supporting surface, the axis being parallel of outer ring supporting surface and piston top body, junction surface is arc surface and the center of circle of junction surface is positioned at inner ring supporting surface side.The utility model gas engine piston top, reduces the volume of cooling chamber, makes piston rate of cooling appropriateness, avoid too fast or excessively slow, and heat loss is little, reduces rate of fuel consumption; After the volume of cooling chamber reduces simultaneously, reduce the oil mass of cold oil, alleviate the consumed power of oil pump, reduce cost; And this piston top structure is simple, is beneficial to processing, reduces processing cost.
Description
Technical field
The utility model relates to a kind of combined piston, particularly a kind of novel gas machine piston top.
Background technique
Traditional combined piston is all designed to the piston with cooling chamber, and its top is made of a steel, and owing to have employed the effective type of cooling, ring district temperature is lower, so do not have the danger of carbon deposit, decreases the wearing and tearing of piston ring simultaneously.And cooling means thermal loss, but this loss ensures that piston reliably and lastingly works necessary.If piston undercooling, a series of harmful effect can be produced.The structure of existing piston top as shown in Figure 1, this cooling chamber 104 ' comprises inner ring supporting surface 1041 ', first inclined-plane 1042 ', bottom surface 1042 ', junction surface 1044 ', the second inclined-plane 1045 ' and the outer ring supporting surface 1046 that connect successively and forms, complex structure, production difficulty is large, increase cost of production, and the volume of this piston cooling chamber is relatively large, the cross-section area of cooling chamber is 1272mm
2, rate of cooling is relatively very fast, and result also in thermal loss too large, rate of fuel consumption increases.
Model utility content
The technical problem that [1] will solve
The technical problems to be solved in the utility model overcomes defect of the prior art, provides that a kind of structure is simple, production difficulty is low, cooling chamber volume is little, is beneficial to the novel gas machine piston top of fuel-economizing.
The technological scheme of [2] dealing with problems
The utility model provides a kind of novel gas machine piston top, comprise columniform piston top body 1, the sidewall of described piston top body 1 has been equally spaced at least two annular grooves 101 in the axial direction, the upper-end surface of described piston top body 1 concaves formation first cavity 102, the lower end surface of described piston only 1 concaves formation second cavity 103, the outer rim of described second cavity 103 continues to concave and forms cooling chamber 104, described cooling chamber 104 is by the inner ring supporting surface 1041 connected successively, junction surface 1042, upper bottom surface 1043 and outer ring supporting surface 1044 are formed, described inner ring supporting surface 1041, the axis being parallel of outer ring supporting surface 1044 and described piston top body 1, described junction surface 1042 is arc surface and the center of circle of described junction surface 1042 is positioned at described inner ring supporting surface side.
Further, described upper bottom surface 1043 is semicircle.
Further, described junction surface 1042 and described inner ring supporting surface 1041 arc transition.
Further, described first cavity 102 is the large cone structure in the little bottom surface of opening, and the sidewall 1021 of described first cavity 102 is connected by the first arc surface 1023 with bottom surface 1022.
Further, described first arc surface 1023 overlaps with the center of circle of described junction surface 1042.
Further, the bottom surface of described first cavity 102 forms the 3rd cavity 105, the bottom surface of described 3rd cavity 105 is cambered outwards arc surface.
[3] beneficial effect
The utility model gas engine piston top, is optimized improvement to the overall structure of piston top and size, particularly redesigns cooling chamber, reduce the volume of cooling chamber, make piston rate of cooling appropriateness, avoid too fast or excessively slow, and heat loss is little, reduce rate of fuel consumption; After the volume of cooling chamber reduces simultaneously, reduce the oil mass of cold oil, alleviate the consumed power of oil pump, reduce cost; And this piston top structure is simple, is beneficial to processing, reduces processing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of piston top of the prior art;
Fig. 2 is the structural representation of the utility model novel gas machine piston top.
Embodiment
Below in conjunction with accompanying drawing, introduce the utility model embodiment in detail.
Consult Fig. 2, the utility model provides a kind of novel gas machine piston top, and comprise columniform piston top body 1, piston top body 1 is of a size of
to be equally spaced in the axial direction at least two annular grooves 101 at the sidewall of piston top body 1, in the present embodiment be three, the cross section of this annular groove is rectangle, concave in the upper-end surface of piston top body 1 formation first cavity 102, this first cavity 102 is the large cone structure in the little bottom surface of opening, and the sidewall 1021 of this first cavity 102 is connected by the first arc surface 1023 with bottom surface 1022, in the present embodiment, also on the bottom surface of the first cavity 102, form the 3rd cavity 105, the bottom surface of the 3rd cavity 105 is cambered outwards arc surface, formation second the cavity 103 and lower end surface of piston only 1 concaves, the outer rim of the second cavity 103 continues to concave and forms cooling chamber 104, this cooling chamber 104 is by the inner ring supporting surface 1041 connected successively, junction surface 1042, upper bottom surface 1043 and outer ring supporting surface 1044 are formed, inner ring supporting surface 1041, outer ring supporting surface 1044 all with the axis being parallel of piston top body 1, junction surface 1042 is for arc surface and its center of circle is positioned at inner ring supporting surface side, namely this junction surface 1042 is protruding to supporting surface side, outer ring, and this junction surface 1042 overlaps with the center of circle of the first arc surface 1023, in order to easy to process and avoid stress to concentrate, the upper bottom surface 1043 of the present embodiment is semicircle, junction surface 1042 and inner ring supporting surface 1041 arc transition simultaneously, inner ring supporting surface in the present embodiment is of a size of
outer ring supporting surface 1044 is of a size of
the width of upper bottom surface is 16mm, and the volume of cooling chamber 104 is 1109mm
2, relative to the cooling chamber of traditional piston top, not only structure changes to some extent, and volume is corresponding reduction also.
The utility model gas engine piston top, is optimized improvement to the overall structure of piston top and size, particularly redesigns cooling chamber, reduce the volume of cooling chamber, make piston rate of cooling appropriateness, avoid too fast or excessively slow, and heat loss is little, reduce rate of fuel consumption; After the volume of cooling chamber reduces simultaneously, reduce the oil mass of cold oil, alleviate the consumed power of oil pump, reduce cost; And this piston top structure is simple, is beneficial to processing, reduces processing cost.
Claims (6)
1. a novel gas machine piston top, it is characterized in that: comprise columniform piston top body (1), the sidewall of described piston top body (1) has been equally spaced at least two annular grooves (101) in the axial direction, the upper-end surface of described piston top body (1) concaves formation first cavity (102), the lower end surface of described piston only (1) concaves formation second cavity (103), the outer rim of described second cavity (103) continues to concave and forms cooling chamber (104), described cooling chamber (104) is by the inner ring supporting surface (1041) connected successively, junction surface (1042), upper bottom surface (1043) and outer ring supporting surface (1044) are formed, described inner ring supporting surface (1041), the axis being parallel of outer ring supporting surface (1044) and described piston top body (1), described junction surface (1042) is for arc surface and the center of circle of described junction surface (1042) is positioned at described inner ring supporting surface side.
2. novel gas machine piston top as claimed in claim 1, is characterized in that: described upper bottom surface (1043) is for semicircle.
3. novel gas machine piston top as claimed in claim 1, is characterized in that: described junction surface (1042) and described inner ring supporting surface (1041) arc transition.
4. novel gas machine piston top as claimed in claim 1, it is characterized in that: described first cavity (102) is the large cone structure in the little bottom surface of opening, and the sidewall (1021) of described first cavity (102) is connected by the first arc surface (1023) with bottom surface (1022).
5. novel gas machine piston top as claimed in claim 4, is characterized in that: described first arc surface (1023) overlaps with the center of circle of described junction surface (1042).
6. novel gas machine piston top as claimed in claim 1, it is characterized in that: the bottom surface of described first cavity (102) forms the 3rd cavity (105), the bottom surface of described 3rd cavity (105) is cambered outwards arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496144.6U CN204082360U (en) | 2014-08-29 | 2014-08-29 | A kind of novel gas machine piston top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496144.6U CN204082360U (en) | 2014-08-29 | 2014-08-29 | A kind of novel gas machine piston top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082360U true CN204082360U (en) | 2015-01-07 |
Family
ID=52175087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420496144.6U Expired - Fee Related CN204082360U (en) | 2014-08-29 | 2014-08-29 | A kind of novel gas machine piston top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343575A (en) * | 2014-08-29 | 2015-02-11 | 大连滨城活塞制造有限公司 | Novel piston top of gas engine |
-
2014
- 2014-08-29 CN CN201420496144.6U patent/CN204082360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343575A (en) * | 2014-08-29 | 2015-02-11 | 大连滨城活塞制造有限公司 | Novel piston top of gas engine |
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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: 20150107 Termination date: 20170829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |