CN203403971U - Light-weight steel piston skirt structure - Google Patents
Light-weight steel piston skirt structure Download PDFInfo
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- CN203403971U CN203403971U CN201320343562.7U CN201320343562U CN203403971U CN 203403971 U CN203403971 U CN 203403971U CN 201320343562 U CN201320343562 U CN 201320343562U CN 203403971 U CN203403971 U CN 203403971U
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- face
- thrust face
- piston
- thickness
- port
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Abstract
A light-weight steel piston skirt structure relates to a piston and comprises a surface window part, a main push force surface part, and an auxiliary push force surface part, wherein the included angle between the outer edge of the surface window part near to the main push force surface part and the piston axle is not smaller than 13 degree. The stress of the inner side of the skirt part and the surface window transition part is furthermore reduced, and higher load can be supported in the case of certain thickness of the surface window part near to the main push force surface part; and the thickness of the surface window part near to the main push force surface part is reduced as much as possible in the case of certain load.
Description
Technical field
The utility model relates to engine art, is specifically related to piston.
Background technique
Along with the high speed development of automotive field, the requirement of engine performance is more and more higher, thereby also piston is had higher requirement.
Piston skirt is as the part below last one annular groove of piston, and the contact guidance piston of it and cylinder wall is reciprocating in cylinder, and bears cylinder wall to its side-thrust.The form structure of piston skirt can directly affect weight and the structural strength of piston.
Model utility content
The purpose of this utility model is to provide a kind of lightweight steel pistons skirt section structure, to solve the problems of the technologies described above.
The technical problem that the utility model solves can realize by the following technical solutions:
Lightweight steel pistons skirt section structure, piston skirt comprises face-port part, Main thrust face part, secondary thrust face part, it is characterized in that, near the outer edge line of Main thrust face face-port part partly and the angle of piston axis, is not less than 13 °.Can further reduce like this stress of inner side, skirt section and face-port transition region, in the situation that can bear higher load near Main thrust face face-port partly thickness is partly certain; Or in the situation that load is certain, near Main thrust face face-port partly thickness partly, can reduce as far as possible.
Because secondary thrust face is stressed less, when guaranteeing that piston move and commutate in cylinder body steadily, near the angle of outer edge line partly of secondary thrust face face-port partly and piston axis, be not more than 10 ° and be not less than 0.Can increase as far as possible like this width of secondary thrust face part, make near the thickness of secondary thrust face face-port part partly as much as possible little simultaneously.
Minimum thickness near Main thrust face face-port part is partly greater than the minimum thickness near the face-port part of secondary thrust face part.
The thickness of Main thrust face part is less than the thickness of secondary thrust face part.So that piston operation is more steady.
Beneficial effect: adopt above design, can be so that the weight saving of steel pistons promotes and structural strength acquisition is further.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
Lightweight steel pistons skirt section structure, piston skirt comprises face-port part, Main thrust face part, secondary thrust face part.
In Fig. 1, Main thrust face is partly positioned at left side, near the outer edge line of Main thrust face face-port part partly and the angle of piston axis, is β, β >=13 °; Can further reduce like this stress of inner side, skirt section and face-port transition region, in the situation that can bear higher load near Main thrust face face-port partly thickness is partly certain; Or in the situation that load is certain, near Main thrust face face-port partly thickness partly, can reduce as far as possible.
Secondary thrust face is partly positioned at right side because secondary thrust face is stressed less, when guaranteeing that piston move and commutate in cylinder body steadily, near outer edge line partly of secondary thrust face face-port partly and the angle of piston axis, be a, 0≤a≤10 °.Can increase as far as possible like this width of secondary thrust face part, make near the thickness of secondary thrust face face-port part partly as much as possible little simultaneously.
Minimum thickness near Main thrust face face-port part is partly m, and the minimum thickness of the face-port part of close secondary thrust face part is n.Thickness m > n.The thickness of Main thrust face part is greater than the thickness of secondary thrust face part.So that piston operation is more steady.Adopt above design, can be so that the weight saving of steel pistons promotes and structural strength acquisition is further.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. lightweight steel pistons skirt section structure, piston skirt comprises face-port part, Main thrust face part, secondary thrust face part, it is characterized in that, near the outer edge line of the face-port part of Main thrust face part and the angle of piston axis, is not less than 13 °.
2. lightweight steel pistons according to claim 1 skirt section structure, is characterized in that: near the outer edge line of face-port part of secondary thrust face part and the angle of piston axis, be not more than 10 ° and be not less than 0.
3. lightweight steel pistons according to claim 2 skirt section structure, is characterized in that: the minimum thickness near Main thrust face face-port part is partly greater than the minimum thickness near the face-port part of secondary thrust face part.
4. according to the lightweight steel pistons skirt section structure described in claim 2 or 3, it is characterized in that: the thickness of Main thrust face part is less than the thickness of secondary thrust face part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343562.7U CN203403971U (en) | 2013-06-17 | 2013-06-17 | Light-weight steel piston skirt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343562.7U CN203403971U (en) | 2013-06-17 | 2013-06-17 | Light-weight steel piston skirt structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403971U true CN203403971U (en) | 2014-01-22 |
Family
ID=49939911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320343562.7U Expired - Lifetime CN203403971U (en) | 2013-06-17 | 2013-06-17 | Light-weight steel piston skirt structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405517A (en) * | 2014-11-19 | 2015-03-11 | 山东滨州渤海活塞股份有限公司 | Lightweight noise-reducing piston for gasoline engine |
| CN108661819A (en) * | 2018-05-30 | 2018-10-16 | 宁波市鄞州德来特技术有限公司 | Lightweight low-friction piston |
-
2013
- 2013-06-17 CN CN201320343562.7U patent/CN203403971U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405517A (en) * | 2014-11-19 | 2015-03-11 | 山东滨州渤海活塞股份有限公司 | Lightweight noise-reducing piston for gasoline engine |
| CN108661819A (en) * | 2018-05-30 | 2018-10-16 | 宁波市鄞州德来特技术有限公司 | Lightweight low-friction piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CX01 | Expiry of patent term |