CN2878811Y - Piston - Google Patents
Piston Download PDFInfo
- Publication number
- CN2878811Y CN2878811Y CN 200620099830 CN200620099830U CN2878811Y CN 2878811 Y CN2878811 Y CN 2878811Y CN 200620099830 CN200620099830 CN 200620099830 CN 200620099830 U CN200620099830 U CN 200620099830U CN 2878811 Y CN2878811 Y CN 2878811Y
- Authority
- CN
- China
- Prior art keywords
- oil
- ring
- piston
- rings
- air
- 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
Links
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 21
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a piston which is an improvement of present piston, relates to the technique field of four stroke internal combustion engine and air compressor. The utility model comprises a piston body (1), two piston rings (2) and ring gaskets (7), and two oil rings (3). Three piston ring grooves including one air ring groove (6) and two oil ring grooves (5) are arranged in the piston body. A plurality of groove oil holes are provided on the lower side wall of the upper oil ring groove and on the upper side wall of the lower oil ring groove, and are communicated with the inner of the piston body. Two air rings are installed side by side in the air ring groove and ring gaskets are provided in the air ring. Two oil rings are symmetrically installed in the two oil ring grooves. The design of double air ring in the air ring groove and the usage of ring gasket greatly increase the air quantity pressurized, and the special design of two rows of groove oil holes and two oil rings also increase the effect of using oil ring, thus the service life of the traditional piston is greatly prolonged.
Description
Affiliated technical field
The utility model relates to quartastroke engine and air compressor technical field, is specifically related to a kind of novel piston.
Background technique
The piston that uses in various quartastroke engines and air compressor generally adopts the structure of three annular grooves, the twice compression ring is installed with oil ring respectively, and along with the increase of wear extent, its air leakage is just big more, and envelope gas ability reduces gradually.
Summary of the invention
In order to reduce the air leakage of piston, improve the working life of ring, the utility model has designed a kind of novel piston.
Its technical solution is: whole be made up of piston body, two compression rings and grommet thereof and two oil rings, piston body is provided with three annular grooves, comprise a compression and two oil ring grooves, compression is last, and two oil ring grooves are following, and the upper wall of the lower wall of upper end oil ring groove and lower end oil ring groove is equipped with some flute profile oilholes, lead to piston body inside, adorning two compression rings in the compression side by side, be provided with grommet in the compression ring, symmetry is installed with two oil rings in two oil ring grooves.
After adopting above structure, the utlity model has following beneficial effect:
One, the design of the interior two compression rings of compression, and the use of grommet can increase envelope tolerance greatly, increases the service life; Two, the design of the special mounting of two emissions groove shape oilholes and twice oil ring can improve the using effect of oil ring, has prolonged the working life of whole piston.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is described in further details:
Fig. 1 is a plan view of the present utility model;
Fig. 2 is the structural representation of compression ring of the present utility model and grommet thereof;
Fig. 3 is an oil ring structural drawing of the present utility model;
Embodiment
As shown in the figure, the utility model integral body is made up of piston body (1), two compression rings (2) and grommet (7) thereof and two oil rings (3) integral body.Piston body is provided with three annular grooves, comprises a compression (6) and two oil ring grooves (5), and compression is last, and two oil ring grooves are following, and the upper wall of the lower wall of upper end oil ring groove and lower end oil ring groove is equipped with some flute profile oilholes (4), leads to piston body inside.Adorn two compression rings in the compression side by side, be provided with grommet in the compression ring; Symmetry is installed with two oil rings in two oil ring grooves, and the A-A section of oil ring is L-shaped, helps oil ring and smoothly machine oil is taken in oilhole.The 180 degree angles of the collar extension (8) of adjacent two rings must being staggered are installed when respectively encircling.The collar extension of compression ring, grommet and oil ring that this piston uses has multiple different structural design, all falls into protection domain of the present utility model.
Claims (1)
1, a kind of piston, it is characterized in that: integral body is made up of piston body (1), two compression rings (2) and grommet (7) thereof and two oil rings (3), piston body is provided with three annular grooves, comprise a compression (6) and two oil ring grooves (5), compression is last, two oil ring grooves are following, the lower wall of upper end oil ring groove and the upper wall of lower end oil ring groove are equipped with some flute profile oilholes (4), lead to piston body inside, adorning two compression rings in the compression side by side, be provided with grommet in the compression ring, symmetry is installed with two oil rings in two oil ring grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099830 CN2878811Y (en) | 2006-03-26 | 2006-03-26 | Piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099830 CN2878811Y (en) | 2006-03-26 | 2006-03-26 | Piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878811Y true CN2878811Y (en) | 2007-03-14 |
Family
ID=37861226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099830 Expired - Fee Related CN2878811Y (en) | 2006-03-26 | 2006-03-26 | Piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878811Y (en) |
-
2006
- 2006-03-26 CN CN 200620099830 patent/CN2878811Y/en not_active Expired - Fee Related
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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: 20070314 Termination date: 20100326 |