CN204572228U - High sealing performance piston - Google Patents
High sealing performance piston Download PDFInfo
- Publication number
- CN204572228U CN204572228U CN201520287747.XU CN201520287747U CN204572228U CN 204572228 U CN204572228 U CN 204572228U CN 201520287747 U CN201520287747 U CN 201520287747U CN 204572228 U CN204572228 U CN 204572228U
- Authority
- CN
- China
- Prior art keywords
- seal gas
- compression
- opening
- ring
- piston
- 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 high sealing performance piston, and its piston body is provided with compression and oil ring groove, is provided with oil ring in oil ring groove; Be provided with the seal gas ring of the opening that two are crisscross arranged in compression, the opening of two seal gas rings is 180 °; The opening inner side of seal gas ring is provided with projection, and one end of this projection is connected with one end of seal gas ring opening; Also another same projection is provided with corresponding on the inwall of above-mentioned projection inside seal gas ring; Two grooves matched with above-mentioned two projections are provided with at the bottom land of compression.Further, axially several positioning hole that is equally distributed, that communicate with compression is offered at the top of piston body along it; In positioning hole, be from bottom to top provided with push rod, spring and fixing bolt successively.The utility model avoids displacement and the gas leakage of seal gas ring, improves sealability and working efficiency, extends working life, and controls piston and suck machine oil when reciprocal flex point from body inner chamber, greatly reduces machine oil, the loss of fuel oil and pollution.
Description
Technical field
The utility model relates to a kind of piston, particularly a kind of piston with high sealing performance.
Background technique
At present, the reciprocating piston that all kinds of internal-combustion engine, compressor etc. adopt, on its piston body, compartment of terrain is provided with oil ring groove and twice compression, in oil ring groove and compression, be respectively arranged with the single seal gas ring of single oil ring and opening, the opening of the seal gas ring in twice compression is in shifting to install.In practical work process, the opening of seal gas ring in upper one compression, the opening of seal gas ring in compression together with lower, though in shifting to install, but the opening of upper one seal gas ring through the opening of the seal gas ring of the protruding parts of piston together with lower in compression still in opening-wide state, and along with reciprocal operation repeatedly, the opening of seal gas ring changes from small to big, displacement gas leakage is more serious, its poor sealing performance, working life is short, needs often to change piston and compression ring, time useless, useless work, affect working efficiency.For this reason, the applicant also once made improvements this, and applied for that the patent No. is 00220443.6, a kind of utility model patent of high-sealing piston, it is the compression ring arranging two openings in compression, and between compression ring and compression, being provided with the ring-type lining spring of opening, the lining opening of spring and the opening of two compression rings are mutually 120 °; It is by the opening offset of lining spring, compression ring, and the own tension effect of lining spring, thus improves the sealability of piston; But in practical work process, the percussion suffered by piston, lining spring and compression ring inevitably still produce and channel bit, and finally make the opening of lining spring and two compression rings overlap, and just cannot reset after overlapping, cause its sealability thoroughly to be lost.
Model utility content
For overcoming the deficiencies in the prior art part, the purpose of this utility model be to provide a kind of reasonable in design, exempt from gas leakage, the high-sealing piston of long service life, piston ring, thoroughly avoid seal gas ring radial direction, axis, circumference and opening gas leakage in compression, improve working efficiency, reduce fuel consume.
For achieving the above object, the utility model adopts following technological scheme: comprise piston body, and piston body is provided with compression and oil ring groove, and the bottom land of oil ring groove is provided with several oilhole communicated with piston cavity, is provided with oil ring in oil ring groove; Be provided with the seal gas ring of the opening that two are crisscross arranged in compression, the opening of two seal gas rings is 180 °; It is characterized in that: the opening inner side of seal gas ring is provided with projection, one end of this projection is connected with one end of seal gas ring opening; Also another same projection is provided with corresponding on the inwall of above-mentioned projection inside seal gas ring; Two grooves matched with above-mentioned two projections are provided with at the bottom land of compression.Like this, be arranged at the seal gas ring in compression, due to the effect of projection and groove, ensure that the location of seal gas ring, make it operationally can not produce circumference and rotate and channel bit; Meanwhile, the opening of seal gas ring is subject to the projection be arranged at inside it and blocks, and ensure that good sealability.
Axially several positioning hole that is equally distributed, that communicate with compression is offered along it at the top of piston body; In positioning hole, be from bottom to top provided with push rod, spring and fixing bolt successively.Like this, the projection of a upper blanket gas Ring current distribution and opening inner side, under the effect of top spring, is close to opening and the center of next root seal gas ring, axis gas leakage (vertically) of next root seal gas ring opening of shutoff; Due to the projection of next root seal gas ring opening inner side, be close to opening inner side, next root seal gas ring of shutoff in compression by the gas leakage of Inside To Outside; Gap between the top and compression of the upper seal gas ring gas of coming in by next root seal gas ring shutoff Inside To Outside collaborate, and the opening of a upper seal gas ring is close to the center portion of next root seal gas ring, the outside gas leakage of a upper seal gas ring opening is blocked, the lower plane of next root seal gas ring is close to the plane of compression, thus define radial direction, circumference, axial sealing, and also sealing state can be remained in the running of piston.
The beneficial effects of the utility model are: owing to having set up projection at the opening inner side of seal gas ring, also another same projection is provided with corresponding on the inwall of above-mentioned projection inside seal gas ring, and be provided with two grooves matched with above-mentioned two projections at the bottom land of compression, and axially offer several equally distributed at the top of piston body along it, the positioning hole communicated with compression, in positioning hole, from bottom to top be provided with push rod successively, spring and fixing bolt, therefore, when pistons work, no matter opening seal gas ring is axially, radial, circumference and back and forth flex point, thoroughly avoid displacement and the gas leakage of seal gas ring, decrease mechanical wear, ensure that good sealability, effectively extend the working life of piston, improve the working efficiency of piston, and control piston when reciprocal flex point from body inner chamber suction machine oil, greatly reduce machine oil, the loss of fuel oil and pollution.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of seal gas ring in the utility model.
In figure: 1 is fixing bolt, 2 is spring, and 3 is push rod, and 4 is seal gas ring, 41 and 42 be projection, 5 for oil ring, 6 is oilhole, and 7 is piston pin hole; 8 is piston body.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
High sealing performance piston described in the utility model, its piston body 8 is from top to bottom provided with compression and oil ring groove; The bottom land of oil ring groove be provided with two groups of symmetries, often organize six oilholes 6 communicated with piston body 8 inner chamber, be provided with the oil ring 5 of opening in oil ring groove; The piston body 8 of compression and oil ring groove bottom offers symmetrically two piston pin holes 7; The opening in seal gas ring 4, two seal gas rings 4 be crisscross arranged being provided with two openings in compression is 180 °; The opening inner side of seal gas ring 4 is provided with projection 41, and one end of this projection 41 is connected with one end of seal gas ring 4 opening; Also another same projection 42 is provided with corresponding on the inwall of above-mentioned projection 41 inside seal gas ring 4; Two grooves matched with above-mentioned two projections 41,42 are provided with at the bottom land of compression.Axially several positioning hole that is equally distributed, that communicate with compression is offered along it at the top of piston body 8; In positioning hole, be from bottom to top provided with push rod 3, spring 2 and fixing bolt 1 successively.
Claims (2)
1. high sealing performance piston, comprises piston body, and piston body is provided with compression and oil ring groove, and the bottom land of oil ring groove is provided with several oilhole communicated with piston cavity, is provided with oil ring in oil ring groove; Be provided with the seal gas ring of the opening that two are crisscross arranged in compression, the opening of two seal gas rings is 180 °; It is characterized in that: the opening inner side of seal gas ring is provided with projection, one end of this projection is connected with one end of seal gas ring opening; Also another same projection is provided with corresponding on the inwall of above-mentioned projection inside seal gas ring; Two grooves matched with above-mentioned two projections are provided with at the bottom land of compression.
2. high sealing performance piston according to claim 1, is characterized in that: axially offer several positioning hole that is equally distributed, that communicate with compression at the top of piston body along it; In positioning hole, be from bottom to top provided with push rod, spring and fixing bolt successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287747.XU CN204572228U (en) | 2015-04-27 | 2015-04-27 | High sealing performance piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287747.XU CN204572228U (en) | 2015-04-27 | 2015-04-27 | High sealing performance piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572228U true CN204572228U (en) | 2015-08-19 |
Family
ID=53864877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520287747.XU Expired - Fee Related CN204572228U (en) | 2015-04-27 | 2015-04-27 | High sealing performance piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819067A (en) * | 2015-04-27 | 2015-08-05 | 李明领 | High-seal-performance piston |
| CN106468225A (en) * | 2015-08-18 | 2017-03-01 | 李明领 | High-sealing piston compression ring |
-
2015
- 2015-04-27 CN CN201520287747.XU patent/CN204572228U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819067A (en) * | 2015-04-27 | 2015-08-05 | 李明领 | High-seal-performance piston |
| CN106468225A (en) * | 2015-08-18 | 2017-03-01 | 李明领 | High-sealing piston compression ring |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180427 |