CN2787857Y - Piston with oil control ring - Google Patents
Piston with oil control ring Download PDFInfo
- Publication number
- CN2787857Y CN2787857Y CN 200420121937 CN200420121937U CN2787857Y CN 2787857 Y CN2787857 Y CN 2787857Y CN 200420121937 CN200420121937 CN 200420121937 CN 200420121937 U CN200420121937 U CN 200420121937U CN 2787857 Y CN2787857 Y CN 2787857Y
- Authority
- CN
- China
- Prior art keywords
- oil control
- piston
- control ring
- ring
- ring groove
- 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 relates to a piston with an oil control ring, which comprises a cylinder barrel, a piston and a piston ring, wherein a piston ring groove is arranged on the piston ring, and the piston ring is installed in the piston ring groove; an opening of the piston ring is arranged on the piston ring. The piston with an oil control ring also comprises an oil control ring and an oil control ring groove, wherein the inner side of the upper side surface or the lower side surface of the piston ring groove is provided with a trapezoidal annular oil control ring groove, and the oil control ring is trapezoid and annular; an opening of the oil control ring is arranged on the oil control ring, and the oil control ring is arranged in the oil control ring groove; the oil control ring groove can also be arranged on the inner sides of the upper side surface and the lower side surface of the piston ring groove respectively and simultaneously, and the oil control ring is respectively arranged in the oil control ring grooves. Due to the adoption of the design scheme, the oil pumping phenomenon between piston rings is overcome and lubrication oil is prevented from entering a combustion chamber effectively. Therefore, the consumption of the lubricating oil is reduced, the emission of harmful gases in exhaust emission is reduced and the piston with an oil control ring is favorable to the environmental protection of air and has the advantages of simple structure and reliable performance.
Description
Technical field
The utility model relates to a kind of piston cylinder, particularly relates to a kind of piston that has oil control ring.
Background technique
In the prior art, internal-combustion engines etc. are by fuel oil or other power source, through piston reciprocating and work done in cylinder barrel, the mechanical friction power that its work done process is produced can cause high temperature, inner surface of cylinder block is pulled, cause machine to run well, thus must be lubricated reducing friction factor with lubricant oil, thus prolonged mechanical working life.The applicant has submitted a patent application on March 4th, 2003, application number is 03239682.1, denomination of invention is " a combined type flexible sealing piston ring ", the technological scheme that the present invention is created, the sealing effect of countercylinder has obtained very big improvement, reduce the consumption of fuel oil and lubricant oil, reduce exhaust emissions, but this technological scheme does not solve the leakage that is caused in the pump oil phenomenon that piston and piston ring occur in the to-and-fro motion of piston, because piston ring will move radially in piston ring groove, certainly exist sideshake and radial clearance between its piston ring groove and the piston, as shown in Figure 3, when piston moved downward, piston ring was close to the last plane of piston ring groove, and the lubricant oil that is scraped from casing wall by piston ring is squeezed into the downside gap and radial clearance of piston ring; As shown in Figure 4, when piston upwards moved upward, piston ring was close to the lower plane of piston ring groove, and it is indoor that lubricant oil is entered compression and combustion through the upper side gap.
Summary of the invention
The purpose of this utility model provides a kind of piston that has oil control ring, by the oil circuit of control fuel tap control pump oil, to remedy the deficiencies in the prior art.
The utility model is realized as follows: a kind of piston that has oil control ring, it includes cylinder barrel, piston and piston ring, piston ring is provided with piston ring groove, piston ring is installed in the piston ring groove, and piston ring is provided with gap-clearance of piston rings, and it also comprises oil control ring and oil control ring groove, the upper side of described piston ring groove or downside inboard are provided with the oil control ring groove of trapezoidal ring-type, described oil control ring is trapezoidal ring-type, and oil control ring is provided with the oil control ring opening, and oil control ring is arranged in the oil control ring groove.
Described oil control ring groove also can be arranged on the upper side and the downside inboard of piston ring groove respectively simultaneously, and oil control ring is separately positioned in the oil control ring groove.
The diameter of described oil control ring is greater than the diameter of oil control ring groove, and the thickness of oil control ring is less than or equal to the degree of depth of oil control ring groove.
The material of described oil control ring is metal, plastics or nylon.
When work, piston moves downward, the upper side of piston ring groove is pressed on the upper side of piston ring, oil control ring in the piston ring groove leans on the elastic force of himself also to be close to the downside of piston ring, has stoped the lubricant oil that is scraped from casing wall by piston ring to be squeezed into the downside gap and radial clearance of piston ring; When piston moved upward, oil control ring was pressed in the oil control ring groove by piston ring, and piston ring contacts with piston ring groove, and lubricant oil is trapped between oil control ring and the cylinder barrel wall, and was pressed against cylinder barrel wall one side, recoated on the cylinder barrel wall.
The piston good effect that the utility model has oil control ring is: owing to adopted present design, overcome the pump oil phenomenon between piston ring, stoped lubricant oil to enter the firing chamber effectively, thereby reduced the consumption of lubricant oil, reduce discharge of harmful gases in the exhaust emissions, helped the environmental protection of air; The utility model is simple in structure, reliable performance.
Description of drawings
Fig. 1 is an operating structure schematic representation under the piston in the utility model.
Fig. 2 is an operating structure schematic representation on the piston in the utility model.
Fig. 3 is an operating structure schematic representation under the piston in the prior art.
Fig. 4 is an operating structure schematic representation on the piston in the prior art.
Fig. 5 is another kind of embodiment's schematic representation of the present utility model.
Fig. 6 is two kinds of embodiments' a fabricated structure schematic representation.
Fig. 7 is the profile schematic representation of oil control ring.
Among the figure, 1 oil control ring, 2 piston rings, 3 pistons, 4 piston ring grooves, 5 oil control ring grooves, 6 cylinder barrels, 7 oil control ring openings.
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 5, the piston that has oil control ring of the present utility model, it includes cylinder barrel 6, piston 3 and piston ring 2, piston ring 2 is provided with piston ring groove 4, piston ring 2 is installed in the piston ring groove 4, piston ring 2 is provided with gap-clearance of piston rings, it also comprises oil control ring 1 and oil control ring groove 5, the upper side of described piston ring groove 4 or downside inboard are provided with the oil control ring groove 5 of trapezoidal ring-type, described oil control ring 1 is trapezoidal ring-type, oil control ring 1 is provided with oil control ring opening 7, and oil control ring 1 is arranged in the oil control ring groove 5.
As shown in Figure 6, described oil control ring groove 5 also can be arranged on the upper side and the downside inboard of piston ring groove 4 respectively simultaneously, and oil control ring 1 is separately positioned in the oil control ring groove 5.
The diameter of described oil control ring 1 is greater than the diameter of oil control ring groove 5, and the thickness of oil control ring 1 is less than or equal to the degree of depth of oil control ring groove 5.
The material of described oil control ring 1 is metal, plastics or nylon.
Claims (4)
1. piston that has oil control ring, it includes cylinder barrel, piston and piston ring, piston ring is provided with piston ring groove, piston ring is installed in the piston ring groove, and piston ring is provided with gap-clearance of piston rings, it is characterized in that: it also comprises oil control ring and oil control ring groove, the upper side of described piston ring groove or downside inboard are provided with the oil control ring groove of trapezoidal ring-type, described oil control ring is trapezoidal ring-type, and oil control ring is provided with the oil control ring opening, and oil control ring is arranged in the oil control ring groove.
2. the piston that has oil control ring according to claim 1 is characterized in that: described oil control ring groove also can be arranged on the upper side and the downside inboard of piston ring groove respectively simultaneously, and oil control ring is separately positioned in the oil control ring groove.
3. the piston that has oil control ring according to claim 1 is characterized in that: the diameter of described oil control ring is greater than the diameter of oil control ring groove, and the thickness of oil control ring is less than or equal to the degree of depth of oil control ring groove.
4. the piston that has oil control ring according to claim 1 is characterized in that: the material of described oil control ring is metal, plastics or nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121937 CN2787857Y (en) | 2004-12-31 | 2004-12-31 | Piston with oil control ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121937 CN2787857Y (en) | 2004-12-31 | 2004-12-31 | Piston with oil control ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787857Y true CN2787857Y (en) | 2006-06-14 |
Family
ID=36786152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420121937 Expired - Fee Related CN2787857Y (en) | 2004-12-31 | 2004-12-31 | Piston with oil control ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787857Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477919A (en) * | 2010-11-22 | 2012-05-30 | 中国北车集团大连机车研究所有限公司 | Piston of combustion engine and combustion engine |
| CN104704268A (en) * | 2012-10-31 | 2015-06-10 | 马勒金属立夫有限公司 | Single-piece oil control ring |
| CN105090159A (en) * | 2015-08-29 | 2015-11-25 | 济南大学 | Low-friction and quick-start hydraulic cylinder based on flutter mechanism |
| CN111188692A (en) * | 2018-11-15 | 2020-05-22 | 日立汽车系统(苏州）有限公司 | Device for improving engine oil dilution |
-
2004
- 2004-12-31 CN CN 200420121937 patent/CN2787857Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477919A (en) * | 2010-11-22 | 2012-05-30 | 中国北车集团大连机车研究所有限公司 | Piston of combustion engine and combustion engine |
| CN102477919B (en) * | 2010-11-22 | 2014-04-23 | 中国北车集团大连机车研究所有限公司 | Piston of combustion engine and combustion engine |
| CN104704268A (en) * | 2012-10-31 | 2015-06-10 | 马勒金属立夫有限公司 | Single-piece oil control ring |
| CN105090159A (en) * | 2015-08-29 | 2015-11-25 | 济南大学 | Low-friction and quick-start hydraulic cylinder based on flutter mechanism |
| CN111188692A (en) * | 2018-11-15 | 2020-05-22 | 日立汽车系统(苏州）有限公司 | Device for improving engine oil dilution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060614 Termination date: 20100201 |