CN2517879Y - Piston - Google Patents
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- Publication number
- CN2517879Y CN2517879Y CN 02200995 CN02200995U CN2517879Y CN 2517879 Y CN2517879 Y CN 2517879Y CN 02200995 CN02200995 CN 02200995 CN 02200995 U CN02200995 U CN 02200995U CN 2517879 Y CN2517879 Y CN 2517879Y
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- oil ring
- groove
- compression
- 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 discloses a piston which comprises a piston main body (7), two gas ring grooves (1) adjacent to the top part of the piston and a first oil ring groove (3). The skirt section of the piston main body (7) is arranged at a second oil ring groove (4), a second oil ring is arranged in the second oil ring groove (4), the end surface where the piston main body (7) and the first oil ring groove (3) are connected mutually is arranged into a slope surface (5), and a pressure relief vent (6) is arranged on the slope surface (5). The oil of the piston is scraped through two oil rings, the oil splashed on a cylinder wall is scraped off thoroughly, the carbon laydown at the top part of the piston is difficult to form, not only the engine oil is saved, but also the pollution is decreased, and the service life of an engine is prolonged.
Description
Technical field:
The utility model relates to a kind of piston.
Background technique:
At present, the piston of Reciprocating engine is owing to have only the oil ring frizing one, and it is not thorough that the oil that is spattered on the cylinder wall is scraped, and causes the machine oil burning capacity to increase, and carbon deposit forms easily, emits blue smoke, and is seriously polluted, motor shortening in working life; The twice compression is arranged at the pot type piston top, each compression is built-in with a compression ring, after long-term the use, the wearing and tearing of cylinder wall and compression ring, compression ring and compression cause piston ring gap clearance compression, sideshake, back clearance to increase, cylinder bore also increases, collaborate, go here and there oil in the cylinder block, the inner pressure of air cylinder step-down, power descends, just need overhaul or replacing when general cylinder bore weares and teares greater than 0.12mm, engine life is short.
Summary of the invention:
The purpose of this utility model is to provide a kind of frizing thorough, not only economizes machine oil but also reduce pollution and can prolong the motor piston in working life.
The technological scheme that the utility model adopted is: the utility model piston comprises the twice compression and the first road oil ring groove of piston only, close piston head, establish the second road oil ring groove in the skirt section of piston only, be provided with the second road oil ring in this groove, the end face that the piston only and the first road oil ring groove join is made as domatic, the domatic vent that is provided with.
As a kind of improvement project of the present utility model be: the twice compression is combined into compression one, stacks the twice compression ring in this groove, and the opening of twice compression ring staggers 180 ° mutually.
The utility model is established the second road oil ring groove in the piston only skirt section, this groove is built-in with the second road oil ring, the end face that the piston only and the first road oil ring groove join is made as domatic, the domatic vent that is provided with, vent can be eliminated the pressure between the twice oil ring in the cylinder block when descent of piston, make the pressure in the cylinder between the twice oil ring consistent with interior other the local pressure of cylinder block, vent also plays oil return and spatters the oil effect, so that the cylinder block inwall is lubricated, such piston has the twice oil ring, the second road oil ring of lower end, piston only skirt section is thick scraper ring, it is with scraping off that the most of machine oil that is spattered on the cylinder wall is required great effort, the first road oil ring near piston head is smart scraper ring, and it the labour-saving wipes the oil of spatter on cylinder wall off very much, and the piston frizing is thorough like this, the piston head carbon deposit is difficult to form, not only economize machine oil but also reduced pollution, in addition, also prolonged motor working life.The utility model is under the situation that cylinder inner wall constantly weares and teares, diameter increases, because the twice compression ring is located in the compression and twice compression ring opening staggers 180 ° mutually, compression ring is close to the compression ring cell wall with compression ring, compression ring and is sealed " O " RunddichtringO shape, be difficult for collaborating, going here and there oily like this in the cylinder block, cylinder compression ratio remains unchanged, climbing power is strong, and engine life is long.
Description of drawings:
Fig. 1 is the structural representation of a kind of mode of execution of the utility model piston.
Fig. 2 is the structural representation of the another kind of mode of execution of the utility model piston.
Embodiment:
As shown in Figure 1, the utility model piston, the twice compression 1,2 and the first road oil ring groove 3 that comprise piston only 7, close piston head, in piston only 7 skirt sections the second road oil ring groove 4 is set, insert the second road oil ring in this groove 4, the second road oil ring adopts common oil ring, in the second road oil ring groove 4 with the interior the same spill port that also is provided with of conventional oil annular groove, the end face that the piston only 7 and the first road oil ring groove 3 join is made as domatic 5, domatic 5 are provided with vent 6, vent 6 can be established 8-10, and its position and the first road oil ring groove, the 3 interior spill ports several angle that staggers gets final product; As shown in Figure 2, the utility model is also established the groove of a circle broad on the close piston only 7 of piston head, and this groove width is 1 times of common compression, common twice compression ring 11,12 is overlayed in this groove, and twice compression ring 11,12 openings staggers 180 ° mutually.
Claims (2)
1, a kind of piston, the twice compression (1), (2) and the first road oil ring groove (3) that comprise piston only (7), close piston head, it is characterized in that: the second road oil ring groove (4) is established in the skirt section of described piston only (7), be provided with the second road oil ring in this groove (4), described piston only (7) is made as domatic (5) with the end face that the first road oil ring groove (3) joins, and domatic (5) are provided with vent (6).
2, piston according to claim 1 is characterized in that: described twice compression (1), (2) are combined into compression one, stack twice compression ring (11), (12) in this groove, and the opening of twice compression ring (11), (12) interlaces 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02200995 CN2517879Y (en) | 2002-01-23 | 2002-01-23 | Piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02200995 CN2517879Y (en) | 2002-01-23 | 2002-01-23 | Piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2517879Y true CN2517879Y (en) | 2002-10-23 |
Family
ID=33684007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02200995 Expired - Fee Related CN2517879Y (en) | 2002-01-23 | 2002-01-23 | Piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2517879Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948964A (en) * | 2016-01-06 | 2017-07-14 | 光阳工业股份有限公司 | Engine pistons structure |
| CN108786986A (en) * | 2018-07-27 | 2018-11-13 | 河南黎明重工科技股份有限公司 | A kind of anti-splash device of gyratory crusher |
-
2002
- 2002-01-23 CN CN 02200995 patent/CN2517879Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948964A (en) * | 2016-01-06 | 2017-07-14 | 光阳工业股份有限公司 | Engine pistons structure |
| CN106948964B (en) * | 2016-01-06 | 2019-07-23 | 光阳工业股份有限公司 | Engine pistons structure |
| CN108786986A (en) * | 2018-07-27 | 2018-11-13 | 河南黎明重工科技股份有限公司 | A kind of anti-splash device of gyratory crusher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |