CN202250450U - Anti-expansion cylinder piston - Google Patents
Anti-expansion cylinder piston Download PDFInfo
- Publication number
- CN202250450U CN202250450U CN201120351529XU CN201120351529U CN202250450U CN 202250450 U CN202250450 U CN 202250450U CN 201120351529X U CN201120351529X U CN 201120351529XU CN 201120351529 U CN201120351529 U CN 201120351529U CN 202250450 U CN202250450 U CN 202250450U
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- CN
- China
- Prior art keywords
- piston
- hole
- pin hole
- cylinder
- piston pin
- 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 - Lifetime
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides an anti-expansion cylinder piston, which comprises a piston head portion and a piston edge portion. A piston pin hole is arranged in the middle of the piston edge portion transversely, and a through hole is arranged on the lateral portion of the piston pin hole at the piston edge portion and in penetrating connection with the piston pin hole. By means of the through hole arranged at the piston edge portion and a penetrating-connecting channel arranged between the through hole and the piston pin hole, on the premise that mechanical performance is mot influenced of the piston, heated deformation of the piston in working can be relieved through the through hole and by applying simple processing, heat dissipation can be facilitated, piston weight is lightened, and contact area of the piston and a cylinder is decreased. Lubricating agent can be added into the piston pin hole through groove or holes which are in penetrating connection with each other, accordingly friction is reduced, and the lubricating agent can bring heat out and facilitate heat dissipation so as to play an anti-expansion role.
Description
Technical field
The utility model relates to a kind of piston, particularly a kind ofly can resist bloated cylinder, the piston of good cooling results.
Background technique
Piston at high temperature, high pressure, at a high speed, work under the condition of insufficient lubrication; At present; Because piston portion rapid movement in the internal combustion engine operation process, because the limitation of radiation system, piston for IC engine is attended expand cylinder, pull-cylinder phenomena through regular meeting; Thereby cause to change piston or cylinder body, both caused economic loss also to influence the normal operation of internal-combustion engine.
The model utility content
In order to overcome the deficiency of existing technology, the utility model provides a kind of anti-cylinder piston that expands.
The utility model solves the technological scheme that its technical problem adopted:
A kind of anti-cylinder piston that expands comprises piston crown and piston skirt, and the piston skirt intermediate lateral is provided with piston pin hole, and said piston skirt upper piston pin-and-hole sidepiece is provided with through hole, runs through between through hole and the piston pin hole to be connected.
As the improvement of such scheme, described through hole is perpendicular to processed surface, piston skirt;
As the further improvement of such scheme, piston crown is provided with circular groove;
Further, described through hole is symmetrically distributed in the both sides of piston pin hole;
Further, run through between said through hole and the piston pin hole be connected can be groove or hole;
Further, the bottom of described piston skirt has groove.
The beneficial effect of the utility model is: the utility model is through stamping through hole in the piston skirt, and between through hole and piston pin hole, is provided with and runs through connecting passage, under the prerequisite of the mechanical property that does not influence piston; The simple processing of utilization, temperature distortion can be alleviated through through hole when pistons work, can help heat radiation; Alleviated the weight of piston; And reduced the area of contact of piston and cylinder, can in piston pin hole, add oiling agent through groove or the hole of running through connection, thereby reduce friction; Oiling agent also can be taken heat out of and help heat radiation, thereby plays anti-anti-effect of expanding.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is that the axle that waits of the utility model is surveyed view;
Fig. 2 is the polycrystalline substance schematic representation of the utility model;
Fig. 3 is the plan view of the utility model.
Embodiment
With reference to Fig. 1 ~ 3,, a kind of anti-cylinder piston that expands, comprise piston crown 1 and piston skirt 2; Piston skirt 2 intermediate lateral are provided with piston pin hole 21; Said piston skirt 2 upper piston pin-and-holes, 21 sidepieces are provided with through hole 3, run through between through hole 3 and the piston pin hole 21 to be connected, and the thermal distortion that produces in the pistons work can be alleviated through through hole 3; Piston crown 1 is provided with circular groove 11; Described through hole 3 is symmetrically distributed in the both sides of piston pin hole 21, and has reduced the area of contact of piston and cylinder, thereby has reduced friction.
Described through hole 3 is perpendicular to processed surface, piston skirt.
Run through between said through hole 3 and the piston pin hole 21 be connected can be groove or hole; Certainly; The utility model is not limited to above-mentioned mode of execution, as long as it reaches the technique effect of the utility model with essentially identical means, all should belong to the protection domain of the utility model.
The bottom of described piston skirt has groove 5, can alleviate the weight of piston, reduces the area of contact of piston and cylinder, thereby reduces friction.
The utility model is through stamping through hole 3 in the piston skirt, and between through hole 3 and piston pin hole 2, is provided with and runs through connecting passage 4, under the prerequisite of the mechanical property that does not influence piston; The simple processing of utilization, temperature distortion can be alleviated through through hole 3 when pistons work, can help heat radiation; Alleviated the weight of piston; And reduced the area of contact of piston and cylinder, can in piston pin hole, add oiling agent through groove or the hole of running through connection, thereby reduce friction; Oiling agent also can be taken heat out of and help heat radiation, thereby plays anti-anti-effect of expanding.
Claims (6)
1. one kind resists the cylinder piston that expands; Comprise piston crown (1) and piston skirt (2); Piston skirt (2) intermediate lateral is provided with piston pin hole (21); It is characterized in that: said piston skirt (2) upper piston pin-and-hole (21) sidepiece is provided with through hole (3), is provided with between through hole (3) and the piston pin hole (21) and runs through the passage (4) that is connected.
2. a kind of anti-cylinder piston that expands according to claim 1, it is characterized in that: described through hole (3) is perpendicular to processed surface, piston skirt.
3. a kind of anti-cylinder piston that expands according to claim 1, it is characterized in that: piston crown (1) is provided with circular groove (11).
4. a kind of anti-cylinder piston that expands according to claim 1, it is characterized in that: described through hole (3) is symmetrically distributed in the both sides of piston pin hole (21).
5. a kind of anti-cylinder piston that expands according to claim 1 is characterized in that: run through the passage (4) that is connected between said through hole (3) and the piston pin hole (21) and can be groove or hole.
6. a kind of anti-cylinder piston that expands according to claim 1, it is characterized in that: the bottom of described piston skirt has groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120351529XU CN202250450U (en) | 2011-09-20 | 2011-09-20 | Anti-expansion cylinder piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120351529XU CN202250450U (en) | 2011-09-20 | 2011-09-20 | Anti-expansion cylinder piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250450U true CN202250450U (en) | 2012-05-30 |
Family
ID=46111705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120351529XU Expired - Lifetime CN202250450U (en) | 2011-09-20 | 2011-09-20 | Anti-expansion cylinder piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016716A (en) * | 2012-11-23 | 2013-04-03 | 大连滨城活塞制造有限公司 | Steel head and aluminium skirt piston with taper piston pin holes |
-
2011
- 2011-09-20 CN CN201120351529XU patent/CN202250450U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016716A (en) * | 2012-11-23 | 2013-04-03 | 大连滨城活塞制造有限公司 | Steel head and aluminium skirt piston with taper piston pin holes |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |